CN202954578U - Structure for connecting tilted stair with rest platform of prefabricated assembled detachable type foundation pit ladder - Google Patents
Structure for connecting tilted stair with rest platform of prefabricated assembled detachable type foundation pit ladder Download PDFInfo
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- CN202954578U CN202954578U CN 201220611639 CN201220611639U CN202954578U CN 202954578 U CN202954578 U CN 202954578U CN 201220611639 CN201220611639 CN 201220611639 CN 201220611639 U CN201220611639 U CN 201220611639U CN 202954578 U CN202954578 U CN 202954578U
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- half space
- tiltedly
- pin
- stair
- tie point
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Abstract
The utility model relates to a structure for connecting a tilted stair with a rest platform of a prefabricated assembled detachable type foundation pit ladder. The structure comprises the rest platform, the titled stair, sleeves, a pin bolt, a tilted stair sealing plate and a rest platform rib. According to the structure, connection modes of the vertical sleeve and the pin bolt are respectively adopted at the upper and lower connection points of the rest platform and the tilted stair of the ladder, so that the horizontal bidirectional freedom degree of allowable connection deviation is enlarged; under the condition that a rest platform component are offset for 33mm in any horizontal direction, the tilted stair can be still smoothly connected with the rest platform by penetrating through the pin bolt between double sleeves, i.e., the precision higher than a horizontal position is achieved, and the assembling type installation is successfully carried out. After two components, namely, the tilted stair and the rest platform, are arranged in place and connected, the upper and lower sleeves are mutually and tightly adhered by using double screw nuts at the lower end of the fastening pin bolt, so that the rest platform and the tilted stair are effectively prevented from vertical diastrophism deformation under the action of an external force, and the integration and security reliability of the ladder are improved.
Description
Technical field
The utility model relates to making and the installation of prefabrication and assembly construction detachable steel cat ladder in a kind of deep foundation pit of construction construction, and particularly the detachable foundation ditch cat ladder of a kind of prefabrication and assembly construction tiltedly runs and the half space syndeton.
Background technology
At present, the deep foundation pit construction vertical channel adopts scaffolding steel pipe to set up provisional cat ladder more for a long time, and rigidity is little, distortion is large, is not easy to workman's carrying implement material and passes through up and down, not only lack of standardization but also dangerous, is difficult to adapt to the standard-required of civilized construction.The shaped steel of the employing precedent of welding integral formula cat ladder is at the scene also arranged, but it is slow to set up speed, disposable input is larger, is not easy to dismounting and turnover utilization, very uneconomical.Therefore in deep foundation pit construction, adopt prefabrication and assembly construction detachable steel cat ladder as vertical construction passage, become wise selection.
In the deep foundation pit earthwork digging process, foundation depth does not reach before the substrate absolute altitude that cat ladder can't " take root " and cat ladder must be with the intensification of foundation depth, synchronize and set up with programming from top to bottom, now the sidewall of foundation pit supporting construction (ground-connecting-wall) must become the unique available strong point of cat ladder.Yet ground-connecting-wall is to be formed by underwater concrete pouring, with ground concrete structure, to compare, the verticality of its sidewall, planeness deviation can enlarge at double, carry out the spelling installation difficulty of assembled steel member as basic point and well imagine.
Therefore, how to adapt to above-mentioned objective condition, adopt which kind of connected mode to make the cat ladder half space and tiltedly run accurately, be connected easily; Providing a kind of simple in structure, reasonable in design, simple installation, the detachable foundation ditch cat ladder of the reliable prefabrication and assembly construction of performance safety tiltedly to run and the half space syndeton, is one of these those skilled in the art technical barrier that should address.
The utility model content
The purpose of this utility model is to overcome above-mentioned weak point, provides a kind of prefabricated assembled, detachable, simple in structure, reasonable in design, simple installation, performance safety is reliable and the detachable foundation ditch cat ladder of prefabrication and assembly construction that can repeatedly apply tiltedly runs and the half space syndeton.
The technical scheme that the utility model adopts for achieving the above object is: the detachable foundation ditch cat ladder of a kind of prefabrication and assembly construction tiltedly runs and the half space syndeton, it is characterized in that this structure comprises half space, tiltedly race, sleeve pipe, pin, tiltedly runs head plate, half space limit rib, backing plate and nut; Described half space is connected with the foundation ditch ground-connecting-wall, and described half space is the own level state on side elevation, and its longitudinal axis is perpendicular to the ground-connecting-wall face in the plane; Described oblique race is divided into outer skew back race and interior skew back runs; Described oblique race head plate is located at respectively the two ends up and down of oblique race, and arranges perpendicular to tiltedly running termination; Described half space limit rib is located at the both sides of half space; Described oblique race head plate and corresponding rib tie point place, half space limit soldering sleeve respectively form between upper and lower corresponding two sleeve pipes, and by wear pin by half space with tiltedly run and be fixedly connected with; Described oblique race upper end is worn pin with half space and is connected, and the tie point position is in ,Xie Pao end, half space side; At the upper and lower sleeve pipe of tie point place, adopt pin and nut fastening with one heart; Equally, tiltedly run down end and wear pin with half space and be connected, the tie point position is in ,Xie Pao end, half space side; The upper and lower sleeve pipe of tie point steadily docking and adopt pin and nut with one heart or eccentric fastening.
The beneficial effects of the utility model are: the utility model relates to prefabrication and assembly construction in the deep foundation pit of construction construction can dismantle without breakage making and the installation of steel cat ladder, for tiltedly running and be connected with the quick of half space member.At the cat ladder half space, with tiltedly running tie point, adopt vertical cover barrel bolt to fasten connected mode, expanded the horizontal bidirectional degree of freedom that connects allowable variation.The half space member in the situation that arbitrarily horizontal direction be offset 33 ㎜, tiltedly race still can successfully be worn pin and fastened with half space and be connected between two sleeve pipes; Can reach far above such plan-position precision, further guarantee carrying out smoothly of assembling installation.After the connection in place of two members, by the double nut of fastening pin lower end, upper and lower two sleeve pipes are adjacent to mutually, have effectively prevented that half space and oblique race from producing upper and lower alternate displacement under external force, strengthened globality and the degree of safety of cat ladder.It is simple in structure, reasonable in design, and simple installation is applied widely, and application, without damaged, has little reduction construction cost, the effect highly significant repeatedly.
The accompanying drawing explanation
Fig. 1 is the prefabricated assembled detachable cat ladder plane structure schematic diagram of the utility model.
Fig. 2 is the positive facade structural representation of the prefabricated assembled detachable cat ladder of the utility model.
In figure: 1 half space, 2 tiltedly run, 3 sleeve pipes, 4 pins, 5 tiltedly run head plate, 6 half space limit ribs, 7 backing plates, 8 nuts.
Fig. 3 is the utility model half space and oblique coupling part, the upper end structural representation that runs;
In figure: L1 is sleeve pipe 3 and the oblique attachment weld that runs head plate 5, the attachment weld that L2 is sleeve pipe 3 and half space limit rib 6; Be welded in produce in factory and complete.
Fig. 4 is the utility model half space and tiltedly runs down end coupling part structural representation;
In figure: L1 is sleeve pipe 3 and the oblique attachment weld that runs head plate 5, the attachment weld that L2 is sleeve pipe 3 and half space limit rib 6; Be welded in produce in factory and complete.
Fig. 5 is the utility model pin structural representation.
Fig. 6 is the utility model sleeve pipe and the pin structure connection diagram be placed in one;
Be oblique race and half space relative position lateral deviation connection diagram.
Fig. 7 is the utility model sleeve pipe and the pin structure connection diagram be placed in one;
Be oblique race and half space relative position along track bias connection diagram.
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment, details are as follows for the specific embodiment that foundation the utility model is provided, structure, feature:
As shown in Fig. 1～Fig. 7, the detachable foundation ditch cat ladder of a kind of prefabrication and assembly construction tiltedly runs and the half space syndeton, and this structure comprises half space 1, tiltedly runs 2, sleeve pipe 3, pin 4, tiltedly run head plate 5, half space limit rib 6, backing plate 7 and nut 8; Described half space 1 is connected with the foundation ditch ground-connecting-wall, and described half space 1 is the own level state on side elevation, and its longitudinal axis is perpendicular to the ground-connecting-wall face in the plane; Described oblique race 2 is divided into outer skew back race and interior skew back runs; Described oblique race head plate 5 is located at respectively the two ends up and down of oblique race 2, and this tiltedly runs head plate 5 and belongs to the tiltedly members of race 2 of composition own, in oblique race 2 is made, has welded; Described half space limit rib 6 is located at the both sides of half space 1, also belongs to and forms the member of half space 1 own, in half space 1 is made, has welded; Described oblique race head plate 5 forms upper and lower corresponding two sleeve pipes with corresponding half space limit rib 6 tie point places difference soldering sleeves 3, and by wearing pin 4, half space 1 is fixedly connected with oblique race 2; Described oblique race 2 upper ends are worn pin 4 with half space 1 and are connected, and the tie point position is in half space 1 ,Xie Pao end, side; At the upper and lower sleeve pipe of tie point 3 places, adopt pin 4 and nut 10 fastening with one heart; Equally, tiltedly run 2 lower ends and wear pin 4 with half space 1 and be connected, the tie point position is in half space 1 ,Xie Pao end, side; The upper and lower sleeve pipe of tie point 3 steadily docking and adopt pin and nut 10 with one heart or eccentric fastening; The upper and lower sleeve pipe of eccentric fastening finger also can be fastening under the decentraction state, and this is the characteristics that the utility model is convenient to Fast Installation.
From positive facade, described oblique race head plate 5 is 45 ° of angles with the oblique termination of running.
In installation process, after the upper and lower sleeve pipe 3 of tie point steadily docks, pin 4 is passed to sleeve pipe 3 and backing plate 7 at the scene, and fastening with nut 8.
Described half space 1 and oblique 2 tie points that run, half space 1 side, the node A that tiltedly runs 2 ends and Node B adopt vertical sleeve pipe 3 and pin to fasten 4 connections; Described node A tiltedly runs 2 upper ends and half space 1 tie point; Described Node B is tiltedly to run 2 lower ends and half space 1 tie point.
As shown in Figure 6, Figure 7, described oblique race 2 adopts vertical two sleeve pipes to wear pin to fasten 4 and be connected with half space 1; Described sleeve pipe 3 internal diameters are 45 ㎜～50 ㎜; Described pin diameter is 12 ㎜～16 ㎜; For example: sleeve pipe 3 internal diameters can be made as 45 ㎜, the pin diameter can be made as 12 ㎜, and pin 4 vertically is through between upper and lower sleeve pipe 3, between upper and lower two sleeve pipes 3 in the situation that arbitrarily horizontal direction be offset 33 ㎜, tiltedly run 2 and still can successfully be connected with half space 1, by pin, fasten 4 and be connected with half space 1.Generally select casing inner diameter 45 ㎜ and pin diameter 12 ㎜ to adapt to requirement for bearing capacity, as the cat ladder of especially big length, tie point casing inner diameter and pin diameter can suitably strengthen.
Described oblique race 2 with half space 1 tie point position in half space 1 side, tiltedly run node A and the Node B of 2 ends, by the double nut of fastening pin lower end, upper and lower two sleeve pipes are adjacent to mutually.
Can be provided with guardrail in described oblique race 2, described guardrail is arranged on the guardrail socket that fixedly is welded in oblique race dual-side rib 6; Described guardrail socket adopts φ 48 * 3.5 steel pipe manufacturings, is welded in advance on the 14# channel-section steel web of oblique race 2 employings.
It is as follows that the utility model is specifically installed implementation step:
(1) half space flat orientation and own level degree are adjusted to the right place;
(2) lifting is tiltedly run: described oblique race 2 is divided into outer skew back race and interior skew back runs, and outer skew back first is installed and is run, skew back race in rear installation; Last layer tiltedly runs and utilizes tower crane or mobile crane to be installed; Below each layer tiltedly run and tiltedly run obstruction owing to being subject to mounted upper strata, machinery winches to hole at the end, need tiltedly run and hang jack to its hoisted in position on upper strata.
(3) tiltedly run 2 with being connected of half space 1: tiltedly running under 2 lifting states, first will tiltedly run upper end is connected with half space 1 pin 4, be under concentric state pin 4 and nut 10 is fastening at the upper and lower sleeve pipe 3 of tie point, then carry out tiltedly running being connected of 2 lower ends and half space 1; Be adjusted to the upper and lower sleeve pipe 3 of tie point and steadily dock and wear pin 4 in concentric state, then fixedly the nut 8 of pin 4 is fastening.Described upper and lower sleeve pipe is fastening under concentric is perfect condition, also can be fastening as long as can pass the pin of 12 ㎜ diameters during decentraction, can reach the purpose of Fast Installation.
(4), after checking each position safety and stability of cat ladder, finally remove the button rope of lifting.
(5) spigot-and-socket is installed and is tiltedly run guardrail.
Operating principle: being welded in half space is tie point and the strong point of two members with the vertical sleeve pipe tiltedly run.Internal diameter is 45 ㎜, and the pin diameter passed between two vertical sleeve pipes is 12 ㎜, be that pin horizontal bidirectional degree of freedom in sleeve pipe is 45-12=33 ㎜, so upper and lower two sleeve pipe still can adopt pin to connect in the situation that any horizontal direction changing of the relative positions is not more than 33 ㎜ smoothly.
Foundation ditch cat ladder described in the utility model tiltedly runs with half space and adopts " vertically overlapping barrel bolt fastens " connected mode, is high for the Steel Structure Installation precision, and adapts to again site operation objective reality situation design that foundation pit supporting construction civil engineering deviation is large.Adopt this kind of connected mode, expanded greatly the allowable variation of prefabricated assembled tie point.The half space member in the situation that arbitrarily horizontal direction be offset 33 ㎜, tiltedly race still can successfully be worn pin and fastened with half space and is connected between upper and lower two sleeve pipes, and if the traditional bolt connecting mode of employing assembling type steel structure, allowable variation is only 2 ㎜.The utility model greatly reduces the difficulty of construction that cat ladder is installed.After the connection in place of two members, by the double nut of fastening pin lower end, upper and lower two sleeve pipes are adjacent to mutually, have effectively prevented that half space and oblique race from producing upper and lower alternate displacement under external force, strengthened globality and the degree of safety of cat ladder.
It is prefabricated that the utility model can make the foundation ditch cat ladder carry out batch production, compares installation rate with on-the-spot integral solder and want fast a lot, and work efficiency improves nearly 4 times, and can dismantle without breakage, and recycling, greatly reduce construction cost.The 13 meters foundation ditches of take are example, and one hangs the on-the-spot integral solder of steel cat ladder approximately spends 8000 yuan, needs the gas welding cutting during dismounting, after removing, is worth and remains little.And, after employing the utility model, realized foundation ditch cat ladder prefabrication and assembly construction Smart junction, and one hangs the steel cat ladder approximately costs with 10,000 yuan, can reuse 5 times, and only 2000 yuan of each amortization charges can be saved more than 6000 yuan at every turn.As considered to apply the increasing of rear engineering quantity, the raising of work efficiency, will bring more considerable economic benefit and social benefit.
In a word, the utility model reasonable in design, performance safety are reliable; Arrange and can carry out as required respective change simultaneously, application is convenient, the effect highly significant.
Above-mentioned detailed description of the oblique race of the detachable foundation ditch cat ladder of prefabrication and assembly construction and half space syndeton being carried out with reference to embodiment is illustrative rather than determinate; Therefore in the variation and the modification that do not break away under the utility model general plotting, within should belonging to protection domain of the present utility model.
Claims (5)
1. the detachable foundation ditch cat ladder of prefabrication and assembly construction tiltedly runs and the half space syndeton, it is characterized in that this structure comprises half space, tiltedly race, sleeve pipe, pin, tiltedly runs head plate, half space limit rib, backing plate and nut; Described half space is connected with the foundation ditch ground-connecting-wall, and described half space is the own level state on side elevation, and its longitudinal axis is perpendicular to the ground-connecting-wall face in the plane; Described oblique race is divided into outer skew back race and interior skew back runs; Described oblique race head plate is located at respectively the two ends up and down of oblique race; Described half space limit rib is located at the both sides of half space; Described oblique race head plate and corresponding rib tie point place, half space limit soldering sleeve respectively form between upper and lower corresponding two sleeve pipes, and by wear pin by half space with tiltedly run and be fixedly connected with; Described oblique race upper end is worn pin with half space and is connected, and two member tie point positions are in ,Xie Pao end, half space side; At the upper and lower sleeve pipe of tie point place, adopt pin and nut fastening with one heart; Equally, tiltedly run down end and wear pin with half space and be connected, two member tie point positions are in ,Xie Pao end, half space side; By the upper and lower sleeve pipe of tie point steadily docking and adopt pin and nut with one heart or eccentric fastening.
2. the detachable foundation ditch cat ladder of prefabrication and assembly construction according to claim 1 tiltedly runs and the half space syndeton, it is characterized in that described cat ladder tiltedly runs and node A and the Node B of half space tie point position in ,Xie Pao end, half space side, by the double nut of fastening pin lower end, upper and lower two sleeve pipes are adjacent to mutually; Described node A tiltedly runs upper end and half space tie point, and described Node B is for tiltedly running down end and half space tie point.
3. the detachable foundation ditch cat ladder of prefabrication and assembly construction according to claim 1 tiltedly runs and the half space syndeton, it is characterized in that described pin is through after sleeve pipe and through the backing plate be provided with, and fastening with double nut.
4. the detachable foundation ditch cat ladder of prefabrication and assembly construction according to claim 1 tiltedly runs and the half space syndeton, it is characterized in that described oblique race is provided with guardrail, and described guardrail is arranged on the guardrail socket that is welded in oblique race limit rib.
5. the detachable foundation ditch cat ladder of prefabrication and assembly construction according to claim 1 and 2 tiltedly runs and the half space syndeton, it is characterized in that described casing inner diameter is 45 ㎜～50 ㎜; Described pin diameter is 12 ㎜～16 ㎜.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220611639 CN202954578U (en) | 2012-11-19 | 2012-11-19 | Structure for connecting tilted stair with rest platform of prefabricated assembled detachable type foundation pit ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220611639 CN202954578U (en) | 2012-11-19 | 2012-11-19 | Structure for connecting tilted stair with rest platform of prefabricated assembled detachable type foundation pit ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202954578U true CN202954578U (en) | 2013-05-29 |
Family
ID=48460157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220611639 Withdrawn - After Issue CN202954578U (en) | 2012-11-19 | 2012-11-19 | Structure for connecting tilted stair with rest platform of prefabricated assembled detachable type foundation pit ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202954578U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995915A (en) * | 2012-11-19 | 2013-03-27 | 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 |
| CN105113509A (en) * | 2015-04-24 | 2015-12-02 | 北京卓良模板有限公司 | Tool type foundation pit suspended step ladder |
-
2012
- 2012-11-19 CN CN 201220611639 patent/CN202954578U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995915A (en) * | 2012-11-19 | 2013-03-27 | 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 |
| 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 |
| CN105113509A (en) * | 2015-04-24 | 2015-12-02 | 北京卓良模板有限公司 | Tool type foundation pit suspended step ladder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130529 Effective date of abandoning: 20141217 |
|
| RGAV | Abandon patent right to avoid regrant |