CN210288931U - Prefabricated steel construction stair - Google Patents

Abstract

The utility model discloses a prefabricated steel construction stair relates to the technical field of device of ascending a height, it includes two terraced roof beams and a plurality of integrated into one piece's notch cuttype, the equal rigid coupling of inside wall that two terraced roof beams are adjacent has a plurality of fixed subassemblies that are used for fixing a plurality of notch cuttype respectively, the notch cuttype is transversal to personally submit "L" font, the notch cuttype includes vertical board and horizontal plate, the vertical rigid coupling of vertical board lower extreme has the water strainer along its length direction, the horizontal rigid coupling of one end that vertical board was kept away from to the horizontal plate has the breakwater of following its length direction and transversal L type of personally submitting, contained angle between horizontal plate and the vertical board is less than 90 degrees, terraced roof beam both ends still be provided with be used for with upper, the coupling assembling of lower platform. The utility model discloses a rainwater that drainage board and breakwater will descend to on the horizontal plate is effectively derived for rainy day pedestrian is safer when walking on stair.

Description

Prefabricated steel construction stair

Technical Field

The utility model belongs to the technical field of the technique of device of ascending a height and specifically relates to a prefabricated steel construction stair is related to.

Background

The stairs are members used for vertical traffic between floors in buildings and are mainly used for traffic connection between floors and when the height difference is large. Stairways are also provided in multi-story and high-rise buildings provided with elevators and escalators as the main means of vertical transportation. The stairs are composed of continuous stair sections (also called stair runs), platforms (rest platforms), enclosing members and the like. The horizontal projection distance between the lowest step and the highest step of the stair is the length of the stair, and the total height of the steps is the height of the stair. The common stairs comprise reinforced concrete stairs, steel structure stairs, wood stairs and the like, wherein the reinforced concrete stairs have more advantages in the aspects of structural rigidity, fire resistance, manufacturing cost, construction, modeling and the like.

Patent publication is CN 206752893U's chinese patent, a prefabricated formula equipment stair is proposed, solve the lower problem of work efficiency, its technical scheme main points are including the ladder roof beam, be connected with prefabricated step on the ladder roof beam, be connected with upper platform and lower floor's platform on the ladder roof beam, be connected with the fixed plate on the ladder roof beam, the gomphosis groove has been seted up on the fixed plate, fixedly connected with gomphosis piece on the prefabricated step, sliding connection has the chucking piece on the gomphosis piece, be connected with the elastic component on the chucking piece, the elastic component keeps away from the one end and the gomphosis piece fixed connection of chucking piece, the chucking piece is contradicted with the inner wall in gomphosis groove, carry out the modularization with prefabricated stair and decompose, the mesh that has improved work efficiency has been.

The above prior art solutions have the following drawbacks: prefabricated concrete stair when being used for the stair of municipal administration pedestrian overpass etc. the dead weight is too big, and the secondary accident is comparatively serious when taking place the striking accident, and the rainwater is very easily gathered at the stair face, and the pedestrian slips easily when walking on stair, so above-mentioned technical scheme is great as potential safety hazard when open-air stair uses.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a but prefabricated steel construction stair of self-drainage.

The utility model aims at realizing through the following technical scheme:

the utility model provides a prefabricated steel structure stair, includes two ladder beams and a plurality of integrated into one piece's ladder board, two the equal rigid coupling of inside wall that the ladder beam is adjacent has a plurality of being used for fixed a plurality of respectively the fixed subassembly of ladder board, the transversal "L" font of personally submitting of ladder board, the ladder board includes vertical board and horizontal plate, the vertical rigid coupling of vertical board lower extreme has the drainage board along its length direction, the horizontal plate is kept away from the horizontal rigid coupling of one end of vertical board has the breakwater of following its length direction and transversal L type of personally submitting, the horizontal plate with contained angle between the vertical board is less than 90 degrees, ladder beam both ends still are provided with the coupling assembling that is used for with upper and lower platform rigid coupling.

By adopting the technical scheme, after the two ladder beams are fixed between the upper platform and the lower platform by the connecting components, the ladder plates are respectively fixed by the fixing components on the inner side walls of the two ladder beams, when the ladder plates are fixed in rainy days, rainwater drops on the upper end surfaces of the horizontal plates, the vertical height of one side, far away from the vertical plates, of each horizontal plate is lower than that of one side, close to the vertical plates, of each horizontal plate, so that the rainwater on the horizontal plates is gathered to the joint part of the horizontal plates and the vertical plates in the previous ladder plate along the plate surfaces of the horizontal plates, when the rainwater is gathered to one side of the water filtering plate below the vertical plates, the rainwater flows into the water blocking plate on the horizontal plates along the same trend and flows out through the two ends in the length direction of the water blocking plate, impurities are filtered by the water filtering plate to prevent the water blocking plate, the possibility of rainwater gathering on the upper end surfaces of the ladder plates is reduced, and the phenomenon that the sole of a pedestrian is, the safety of the holding ladder in rainy days is improved; and the ladder board passes through fixed subassembly to be fixed between two ladder roof beams for steel construction stair can divide the processing of version piece and transportation, has promoted steel construction stair's practicality and convenience.

Further setting the following steps: and the upper end surface of the horizontal plate is provided with anti-skid grains.

Through adopting above-mentioned technical scheme, the roughness of horizontal plate face has been increased to the antiskid line to when the pedestrian walks on the steel stair, the frictional force increase that the pedestrian sole received has reduced the possibility that the pedestrian sole skidded when the rainy day is walked.

Further setting the following steps: the fixed subassembly includes that a plurality of wearing to establish the fastening bolt of terraced roof beam lateral wall, it is a plurality of fastening bolt follows terraced roof beam length direction is equidistant and arranges, fastening bolt is located two part rigid coupling between the terraced roof beam has the hornblock along its length direction, the horizontal end and the vertical end of hornblock respectively with the horizontal plate with the adaptation of pegging graft simultaneously of vertical board, fastening bolt keeps away from the one end threaded connection of hornblock has fastening nut.

By adopting the technical scheme, the horizontal plates of the step plates are sequentially connected with the horizontal ends of the corner blocks in an inserting manner, meanwhile, the vertical plates of the step plates are connected with the vertical plates of the corner blocks in an inserting manner, so that the step plates form a whole, and then the corner blocks are fixed on the ladder beam by screwing the fastening nuts, thereby ensuring the stability of the steel structure stair; and the angle blocks are rotatably connected to the ladder beams through fastening bolts, so that the plurality of step plates can be suitable for assembling steel structure stairs at different inclination angles, and the practicability of the steel structure stairs is further improved.

Further setting the following steps: the vertical end and the horizontal end of the corner block are respectively provided with a vertical groove and a horizontal groove which are in plug-in fit with the vertical plate and the horizontal plate, an included angle between the vertical groove and the horizontal groove is matched with an included angle between the vertical plate and the horizontal plate, and the sum of the lengths of the water baffle and the two corner blocks is not more than the length of the horizontal plate.

Through adopting above-mentioned technical scheme, when the horizontal plate of one of them ladder board and the horizontal groove plug-in connection that is located on the corner piece at its length direction both ends, the baffle is located between two corner pieces, and the vertical board of the ladder board of this ladder board top then with the vertical groove plug-in connection of these two corner pieces, analogizes in proper order to the ladder board is fixed between roof beam brother roof beam by the corner piece on two ladder roof beams, has realized the convenient installation of steel construction stair.

Further setting the following steps: and the inner side walls of the two ladder beams are fixedly connected with water guide grooves for bearing water flow in the water baffle.

Through adopting above-mentioned technical scheme, the rainwater on the horizontal plate passes the water strainer and assembles the back in the breakwater, flows into the guiding gutter from the both ends of breakwater length direction, and the drainage through the guiding gutter is remitted into appointed place, has avoided the rainwater directly to fall down from the both ends of breakwater as far as and has influenced the convenient of steel stair below and pass.

Further setting the following steps: coupling assembling includes the splint with "U" font of upper and lower platform thickness adaptation, splint deviate from its opening one end lateral wall rigid coupling have with the loading board that ladder roof beam bolt connects, splint keep away from a plurality of fixing bolt are all worn to be equipped with by the terminal surface about the one end of loading board.

Through adopting above-mentioned technical scheme, the tip at last platform or lower platform is established to the splint grafting cover of "U" font, and a plurality of fixing bolt of rethread fix splint for splint are by firm rigid coupling on last platform or lower platform, and the ladder roof beam passes through the loading board and is connected with splint bolt joint, and then has realized coupling assembling to the fixed function of ladder roof beam.

Further setting the following steps: two positioning rods which are as long as the horizontal plate are fixedly bolted between the two ladder beams, and the two positioning rods are respectively arranged at two ends of the ladder beams and are orthogonally arranged with the ladder beams.

Through adopting above-mentioned technical scheme, the locating bar is fixed the interval between two ladder roof beams for fixed subassembly can guarantee the stability of steel construction stair as far as with the firm rigid coupling of step ladder between two ladder roof beams.

Further setting the following steps: and a plurality of pull rods are further bolted and fixed between the two ladder beams and are arranged in a cross manner.

Through adopting above-mentioned technical scheme, a plurality of pull rods then strain two ladder roof beams and make two ladder roof beams further support tightly with two locating levers between its both ends, have further improved steel construction stair structure's stability.

To sum up, the utility model discloses a beneficial technological effect does:

1. when the landing ladder is in rainy days, rainwater drops on the upper end face of the horizontal plate, then the rainwater is gathered on one side of the water filtering plate below the vertical plate along the horizontal plate, impurities are filtered by the water filtering plate, then the rainwater flows into the water baffle plate on the horizontal plate along the same trend, and then the rainwater flows out from the two ends of the water baffle plate in the length direction, so that the phenomenon that when a pedestrian passes on a stair, the sole is soaked by the ponding water and skids to fall is avoided, and the safety of the landing ladder in rainy days is improved;

2. the anti-slip lines increase the roughness of the surface of the horizontal plate, so that when a pedestrian walks on the steel stair, the friction force on the sole of the pedestrian is increased, and the possibility of slipping the sole of the pedestrian in rainy days is reduced;

3. a plurality of step boards are fixed between two ladder roof beams through the angle piece of bolt fastening at two ladder roof beam lateral walls for a plurality of step boards can be applicable to the equipment of the steel construction stair at different inclination, have improved steel construction stair's practicality.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of another perspective of the present invention;

fig. 3 is the overall structure schematic diagram of the step plate and the fixing component of the present invention.

Reference numerals: 1. a ladder beam; 2. a step plate; 3. a vertical plate; 4. a horizontal plate; 5. a water filter plate; 6. a water baffle; 7. fastening a bolt; 8. a corner block; 9. fastening a nut; 10. a vertical slot; 11. a horizontal groove; 12. a water chute; 13. a splint; 14. a carrier plate; 15. fixing the bolt; 16. positioning a rod; 17. a pull rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a prefabricated steel structure stair, including two ladder beams 1 and a plurality of integrated into one piece's ladder board 2, ladder beam 1 is preferably the I-steel, bolted between two ladder beams 1 and fixed with two locating levers 16 equal with ladder board 2 length, two locating levers 16 divide and arrange ladder beam 1 both ends and be the orthogonal setting with ladder beam 1, still bolted between two ladder beams 1 and fixed with a plurality of pull rods 17, a plurality of pull rods 17 are the cross setting; the equal rigid coupling of the inside wall that two terraced roof beams 1 are adjacent has a plurality of fixed subassemblies that are used for fixing a plurality of ladder boards 2 respectively, 1 both ends of terraced roof beam still be provided with be used for with on, the coupling assembling of lower platform rigid coupling, coupling assembling include with on, the splint 13 of "U" font of lower platform thickness adaptation, splint 13 deviates from the lateral wall rigid coupling of its opening one end have with terraced roof beam 1 bolted connection's loading board 14, on loading board 14 one end was kept away from to splint 13, a plurality of fixing bolt 15 are all worn to be equipped with to the terminal surface down.

When a steel structure stair is built between an upper platform and a lower platform, a U-shaped clamping plate 13 is inserted and sleeved at the end part of the upper platform or the lower platform, and the clamping plate 13 is fixed through a plurality of fixing bolts 15, so that the clamping plate 13 is firmly and fixedly connected to the upper platform or the lower platform, and the ladder beam 1 is in bolted connection with the clamping plate 13 through a bearing plate 14, thereby realizing the fixing function of the connecting assembly on the ladder beam 1; the locating lever 16 is fixed the interval between two terraced roof beams 1 for fixed subassembly can guarantee the stability of steel construction stair as far as possible with the firm rigid coupling of step plate 2 between two terraced roof beams 1, and a plurality of pull rods 17 then strain two terraced roof beams 1 and make two terraced roof beams 1 further support tightly with two locating levers 16 between its both ends, have further improved the stability of steel construction stair structure.

Referring to fig. 2 and 3, the transversal "L" font of personally submitting of step ladder 2, step ladder 2 includes vertical board 3 and horizontal plate 4 of an organic whole connection, 4 up end of horizontal plate are provided with anti-skidding line, the vertical rigid coupling of vertical board 3 lower extreme has along its length direction's water strainer 5, horizontal plate 4 keeps away from the horizontal rigid coupling of one end of vertical board 3 has along its length direction and transversal water baffle 6 of personally submitting the L type, the equal rigid coupling of two terraced roof beams 1 inside wall has the guiding gutter 12 that is arranged in accepting rivers in the water baffle 6, contained angle between horizontal plate 4 and the vertical board 3 is less than 90 degrees.

After the step plates 2 are fixed between the two step beams 1 in sequence through the fixing assemblies, when raining weather occurs, rainwater drops on the upper end face of the horizontal plate 4, the vertical height of one side, far away from the vertical plate 3, of the horizontal plate 4 is lower than the vertical height of one side, close to the vertical plate 3, of the horizontal plate 4, so that the rainwater on the horizontal plate 4 is gathered to the joint of the horizontal plate 4 and the vertical plate 3 in the last step plate 2 along the plate surface of the horizontal plate 4, and when the rainwater is gathered to one side of the water filtering plate 5 below the vertical plate 3, the rainwater flows into the water blocking plate 6 on the water flat plate 4 in a same trend, flows into the water guide grooves 12 in the side walls of the step beams 1 through the two ends of the water blocking plate 6 in the length direction, and finally flows into an appointed place through the drainage of the water guide grooves 12, and the influence on convenience communication below the steel; debris are then filtered by water strainer 5, take place to block up with preventing backstop water board 6, thereby reduced the possibility of rainwater gathering at 2 up end of step plate, be unlikely to soak the sole by ponding when making the pedestrian on stair current and take place to skid so as to fall down, the security of raking the ladder in overcast and rainy weather has been improved, anti-skidding line has increased the roughness of 4 faces of horizontal plate, thereby the pedestrian is when walking on steel stair, the frictional force increase that the pedestrian sole received, the possibility that the pedestrian sole skidded when walking in rainy day has been reduced.

Referring to fig. 3, fixed subassembly includes a plurality of fastening bolt 7 of wearing to establish at 1 lateral wall of terraced roof beam, a plurality of fastening bolt 7 are equidistant along 1 length direction of terraced roof beam and arrange, fastening bolt 7 is located the part rigid coupling between two terraced roof beams 1 and has the hornblock 8 along its length direction, the hornblock 8 cross section is "L" font, fastening bolt 7 keeps away from one end threaded connection of hornblock 8 has fastening nut 9, vertical end and the horizontal end of hornblock 8 are seted up respectively with vertical board 3 and horizontal plate 4 vertical groove 10 and the horizontal groove 11 of grafting adaptation respectively, contained angle between vertical groove 10 and the horizontal groove 11 and the contained angle adaptation between vertical board 3 and the horizontal plate 4, the length sum of breakwater 6 and two hornblocks 8 is not more than the length of horizontal plate 4.

Sequentially connecting the horizontal plates 4 of the step plates 2 with the horizontal ends of the corner blocks 8 in an inserting manner, simultaneously connecting the vertical plates 3 of the step plates 2 with the vertical plates 3 of the corner blocks 8 in an inserting manner, so that the step plates 2 form a whole, and then screwing the fastening nuts 9 to fix the corner blocks 8 on the ladder beam 1, thereby ensuring the stability of the steel structure stair; the angle blocks 8 are rotatably connected to the ladder beams 1 through the fastening bolts 7, so that the plurality of ladder plates 2 can be suitable for assembling steel structure stairs with different inclination angles, and the practicability of the steel structure stairs is further improved; and the connection can all be dismantled to steel construction stair main part for it is more convenient when prefabricating processing and each subassembly of transporting steel construction stair, promoted steel construction stair's practicality and convenience.

The implementation principle and the beneficial effects of the embodiment are as follows:

after the two ladder beams 1 are fixed between the upper platform and the lower platform by the connecting assembly, a plurality of step plates 2 are respectively fixed by a plurality of fixing assemblies on the inner side walls of the two ladder beams 1, when the step plates 2 are fixed and meet rainfall weather, rainwater drips on the upper end surfaces of the horizontal plates 4, the vertical height of one side, far away from the vertical plates 3, of each horizontal plate 4 is lower than the vertical height of one side, close to the vertical plates 3, of each horizontal plate 4, so that the rainwater on the horizontal plates 4 is converged to the joint part of the horizontal plates 4 and the vertical plates 3 in the previous step plates 2 along the plate surfaces of the horizontal plates 4, when the rainwater is converged to one side of the water filtering plates 5 below the vertical plates 3, the rainwater flows into the water retaining plates 6 on the horizontal plates 4 and then flows out through the two ends of the water retaining plates 6 in the length direction, the sundries are filtered by the water filtering plates 5 to prevent the water filtering plates 6 from being blocked, the walking stair has the advantages that when a pedestrian passes on the stairs, the sole is not wetted by accumulated water and slips to fall down, so that the safety of the holding stair in rainy days is improved; and step plate 2 is fixed between two ladder roof beams 1 through fixed subassembly for steel construction stair can divide version piece processing and transportation, has promoted steel construction stair's practicality and convenience.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides a prefabricated steel construction stair which characterized in that: including two terraced roof beams (1) and a plurality of integrated into one piece's ladder board (2), two ladder roof beam (1) adjacent equal rigid coupling of inside wall has a plurality of being used for fixed a plurality of respectively the fixed subassembly of ladder board (2), ladder board (2) are transversal to personally submit "L" font, ladder board (2) are including vertical board (3) and horizontal plate (4), the vertical rigid coupling of vertical board (3) lower extreme has along its length direction's drainage board (5), horizontal plate (4) are kept away from the horizontal rigid coupling of one end of vertical board (3) has along its length direction and transversal breakwater (6) of personally submitting the L type, horizontal plate (4) with contained angle between vertical board (3) is less than 90 degrees, ladder roof beam (1) both ends still are provided with the coupling assembling that is used for with upper and lower platform rigid coupling assembling.

2. The prefabricated steel structure staircase of claim 1, wherein: and anti-skid grains are arranged on the upper end surface of the horizontal plate (4).

3. The prefabricated steel structure staircase of claim 2, wherein: fixed subassembly includes a plurality of wearing to establish fastening bolt (7) of ladder roof beam (1) lateral wall, and is a plurality of fastening bolt (7) are followed ladder roof beam (1) length direction is equidistant and arranges, fastening bolt (7) are located two some rigid couplings between ladder roof beam (1) have along its length direction's hornblock (8), the horizontal end and the vertical end of hornblock (8) respectively with horizontal plate (4) with vertical board (3) are the adaptation of pegging graft simultaneously, fastening bolt (7) are kept away from the one end threaded connection of hornblock (8) has fastening nut (9).

4. The prefabricated steel structure staircase of claim 3, wherein: the vertical end and the horizontal end of the corner block (8) are respectively provided with a vertical groove (10) and a horizontal groove (11) which are matched with the vertical plate (3) and the horizontal plate (4) in an inserting mode, an included angle between the vertical groove (10) and the horizontal groove (11) is matched with the vertical plate (3) and the included angle between the horizontal plates (4), and the sum of the lengths of the corner block (8) is not larger than the length of the horizontal plates (4).

5. The prefabricated steel structure staircase of claim 4, wherein: and the inner side walls of the two ladder beams (1) are fixedly connected with water guide grooves (12) for bearing water flow in the water baffle plates (6).

6. The prefabricated steel structure staircase of claim 1, wherein: coupling assembling includes splint (13) with the "U" font of upper and lower platform thickness adaptation, splint (13) deviate from its opening one end lateral wall rigid coupling have with loading board (14) that ladder beam (1) bolt joint is connected, splint (13) are kept away from a plurality of fixing bolt (15) are all worn to be equipped with by the terminal surface about the one end of loading board (14).

7. The prefabricated steel structure staircase of claim 1, wherein: two locating levers (16) with the same length as the horizontal plate (4) are fixedly bolted between the two ladder beams (1), and the two locating levers (16) are arranged in rows at two ends of the ladder beams (1) and are orthogonally arranged with the ladder beams (1).

8. The prefabricated steel structure staircase of claim 7, wherein: a plurality of pull rods (17) are further bolted and fixed between the two ladder beams (1), and the pull rods (17) are arranged in a cross mode.

Images