CN217734641U

CN217734641U - Bearing steel beam reinforced structure for steel stair

Info

Publication number: CN217734641U
Application number: CN202221717278.7U
Authority: CN
Inventors: 李雷; 陈涛华; 石琦
Original assignee: Wuhan Huanghe Teye Engineering Technology Co ltd
Current assignee: Wuhan Huanghe Teye Engineering Technology Co ltd
Priority date: 2022-07-02
Filing date: 2022-07-02
Publication date: 2022-11-04
Anticipated expiration: 2032-07-02

Abstract

The utility model relates to a steel stair are with bearing girder steel reinforced structure relates to the reinforced technical field of steel stair, and it is including being used for carrying out the fixed platform who fixes with steel stair, set up the stair mouth that supplies the fixed platform installation on the top layer floor, the distolateral top fixed connection with steel stair of fixed platform, the inside wall of stair mouth is equipped with the connecting block, the mounting groove has been seted up to one side that the connecting block is close to the interior lateral wall of stair mouth, the groove level of sliding is laid, the both ends of mounting groove all are the opening form, top layer floor and mounting groove joint adaptation, still be equipped with on the connecting block and be used for making top layer floor and connecting block fixed connecting piece mutually, the connecting block is kept away from and is laminated with fixed platform with the one side that the interior lateral wall of stair mouth links to each other, still be equipped with the fixed subassembly that is used for making fixed platform and the stable laminating of connecting block on the fixed platform. This application has the effect of simplifying the installation dismantlement operation of technical staff to the steel construction stair.

Description

Bearing steel beam reinforced structure for steel stair

Technical Field

The utility model belongs to the technical field of steel stair reinforced (rfd) technique and specifically relates to a steel stair are with bearing girder steel reinforced structure is related to.

Background

Before building construction site stairs are not cast and formed, technicians generally adopt steel pipe ladders or bamboo springboard ladders to be used as the stairs, and because the ladders need to be arranged approximately perpendicular to the ground, potential safety hazards easily appear when the technicians go up and down, so that more and more building construction sites adopt the steel stairs to guarantee the personal safety of the technicians.

A chinese patent document with application number 202210045459.8 discloses a truss type steel structure stair, which comprises i-steel main beams, wherein the i-steel main beams are sequentially and vertically fixed on a floor; the number of the I-shaped steel main beams is four; the I-shaped steel beams are arranged in a square shape, the front end and the rear end of the top surface of the I-shaped steel main beam are horizontally welded with I-shaped steel cross beams in an aligned mode, the left end and the right end of the top surface of the I-shaped steel main beam are horizontally welded with I-shaped steel longitudinal beams in an aligned mode, and the I-shaped steel cross beams and the I-shaped steel longitudinal beams form a rectangular structure; and the rectangle top surface installs the platform, the three lateral walls of platform all laminate mutually with the week side of stair mouth, the I-steel girder height is equallyd divide the internode welding and is had the horizontal pole, diagonal angle welding has the down tube between the horizontal pole, I-steel crossbeam right side afterbody is equipped with the stair structure, the stair structure includes first connecting plate, first connecting plate welds in the one side that the platform lies in the laminating mutually of stair mouth, first connecting plate is kept away from around the one side that is connected with the platform both ends level and is alignd and all install first truss stair and second truss stair in proper order, the second connecting plate is installed to first truss stair and second truss stair afterbody, second connecting plate fixed mounting is on the floor, transversely all install the halfpace in proper order between first truss stair and the second truss stair.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when installing above-mentioned steel structure stair, in order to guarantee stability, technical staff at first need be fixed in subaerially with four I-steel girders to weld a plurality of horizontal poles, down tube between the girder in proper order, technical staff's complex operation, and finish the operation inconvenience when dismantling steel structure stair at the construction.

SUMMERY OF THE UTILITY MODEL

In order to help simplifying the installation dismantlement operation of technical staff to steel construction stair to reduce technical staff's the amount of labour, promote technical staff's work efficiency, this application provides a bearing girder steel reinforced structure for steel stair.

The application provides a pair of bearing girder steel reinforced structure for steel stair adopts following technical scheme:

the utility model provides a steel stair are with bearing girder steel reinforced structure, is including being used for carrying out the fixed platform who fixes with steel stair, set up the stair mouth that supplies the fixed platform installation on the top layer floor, the distolateral top fixed connection with steel stair of fixed platform, the inside wall of stair mouth is equipped with the connecting block, the mounting groove has been seted up to one side that the connecting block is close to stair interior inside wall, the mounting groove level is laid, the both ends of mounting groove all are the opening form, top layer floor and mounting groove joint adaptation, still be equipped with on the connecting block and be used for making top layer floor and connecting block fixed connecting piece mutually, the connecting block is kept away from and is laminated with fixed platform mutually with one side that stair interior lateral wall links to each other, still be equipped with the fixed subassembly that is used for making fixed platform and the stable laminating of connecting block on the fixed platform.

By adopting the technical scheme, when the steel stair needs to be installed, a technician firstly clamps the installation groove of the connecting block with the top floor, fixes the connecting block with the top floor through the connecting piece, then stably attaches the connecting block with the fixed platform through the fixing assembly, and finally fixes the steel stair with one side of the fixed platform to complete the installation of the steel stair, so that the technician does not need to weld for multiple times, the labor amount of the technician is reduced, and the installation efficiency of the technician is improved; through the connecting piece and the fixed subassembly that set up, make steel stair stable installation and stair mouth in, realize dismantling of steel stair simultaneously, be convenient for next time the construction use, resources are saved.

Optionally, the connecting block is kept away from the one side that is connected with the top floor and has been seted up the groove of sliding, the groove level of sliding is laid, the both ends in groove of sliding all are the opening form, fixed platform is close to the distolateral activity of connecting block insert the inslot of sliding and with the groove sliding adaptation that slides, just fixed platform is close to distolateral laminating with the inside wall homogeneous phase in groove of sliding of connecting block.

Through adopting above-mentioned technical scheme, when installing fixed platform, technical staff slides fixed platform's distolateral through the groove of sliding between the connecting block, and the inside wall in the groove of sliding and fixed platform's distolateral laminating mutually this moment plays certain supporting role to fixed platform, makes to be connected stably between fixed platform and the connecting block, and technical staff is to fixed platform's dismantlement easy operation, swift.

Optionally, fixed subassembly includes the fixed block, the fixed slot has been seted up to one side that the floor roof was kept away from in the groove that slides, there is the constant head tank fixed platform is close to one side of connecting block, the fixed slot is laid with the equal level of constant head tank, and the both ends of fixed slot and constant head tank all are the opening form, the fixed block activity is inserted in fixed slot and the constant head tank, works as when the distolateral side of fixed platform stretches into the inslot that slides, the fixed slot is linked together with the constant head tank, just the fixed block is with the equal interference fit of fixed slot, constant head tank.

Through adopting above-mentioned technical scheme, during the installation fixed platform, technical staff slides fixed platform in the groove of sliding, and fixed platform's constant head tank and the fixed slot on the connecting block are linked together this moment, then technical staff inserts the fixed block in constant head tank and the fixed slot to with constant head tank, the equal interference fit of fixed slot, the fixed block is difficult for droing from constant head tank, fixed slot this moment, and then makes being connected of fixed platform and connecting block inseparable, is difficult for droing, promotes the stability of steel stair installation.

Optionally, the opening of the side of the fixing groove close to the positioning groove is narrower than the opening of the side far away from the fixing groove.

Through adopting above-mentioned technical scheme, the technical staff slides fixed platform into back between the connecting block through the groove of sliding, inserts the fixed block in constant head tank and the fixed slot, because one side opening that fixed slot and constant head tank are close to each other all is narrow in the opening of keeping away from one side mutually, makes fixed platform and the difficult rocking that takes place on the horizontal direction of connecting block, makes being connected of fixed platform and connecting block stable to promote the stability of steel stair installation.

Optionally, the fixing assembly further comprises a stabilizing part used for enabling the fixing block to be stably located in the fixing groove and the positioning groove, the stabilizing part comprises a positioning bolt, a first positioning hole communicated with the sliding groove is formed in the connecting block, a second positioning hole communicated with the positioning groove is formed in the fixing platform, a third positioning hole is formed in the fixing block, the free end of the positioning bolt is sequentially movably inserted into the first positioning hole, the second positioning hole and the third positioning hole, and the positioning bolt is in threaded fit with the first positioning hole, the second positioning hole and the third positioning hole.

Through adopting above-mentioned technical scheme, the technical staff inserts the fixed block back in constant head tank and the fixed slot, first locating hole this moment, the second locating hole, the third locating hole is coaxial, the technical staff with positioning bolt first locating hole of screw in proper order, the second locating hole, the third locating hole, make the fixed block be difficult for coming off from constant head tank and fixed slot, realize the connecting block simultaneously, fixed block and fixed platform's fixed connection promotes the stability of fixed platform installation, and then promote the stability of steel stair installation.

Optionally, the bottom of the fixed platform is provided with a supporting piece for assisting in supporting the fixed platform, the supporting piece comprises four supporting rods, the four supporting rods are arranged at four corners of the bottom of the fixed platform respectively, the supporting rods are vertically arranged, and the bottoms of the supporting rods are fixed to the floor slab at the bottom.

Through adopting above-mentioned technical scheme, after the installation is accomplished between fixed platform and connecting block, the technical staff supports fixed platform through the bracing piece, and supports four edges of fixed platform through four bracing pieces, promotes fixed platform's bearing capacity, reduces fixed platform and takes place sunken risk, promotes fixed platform's stability and then promotes the security of steel stair.

Optionally, the top of the supporting rod is provided with a stabilizing plate for improving the stability of the fixed platform, four corners of the stabilizing plate are respectively penetrated by four supporting rods, the stabilizing plate is parallel to the fixed platform and arranged under the fixed platform, and a damper for damping is arranged between the stabilizing plate and the fixed platform.

By adopting the technical scheme, when the supporting rod supports the fixed platform, the fixed platform is supported by the stabilizing plate, so that the stability of the fixed platform is improved; through the attenuator that sets up, fixed platform takes place great deformation when reducing the technical staff current, promotes the stability of fixed station, carries out the shock attenuation to fixed platform.

Optionally, a plurality of protrusions are densely distributed on the upper surface of the fixed platform.

Through adopting above-mentioned technical scheme, through a plurality of archs at fixed platform upper surface densely covered setting, increase technical staff when current with fixed platform's frictional force, and then make the current difficult slip of technical staff fall, the security when promoting technical staff is current.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the steps of mounting and dismounting the steel stair by technicians are simplified through the arranged connecting blocks, the fixed platforms and the fixed assemblies, so that the working efficiency of the technicians is improved;

2. the fixed platform is fixedly connected with the connecting block through the matching of the arranged fixed block, the fixed groove and the positioning groove, so that the mounting stability of the fixed platform is improved, and the stability of the steel stair is further improved;

3. through bracing piece, steadying plate and the attenuator that sets up, carry out the shock attenuation to fixed platform when supporting fixed platform, further promote fixed platform's stability.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic view of a connection structure of a connection block and a fixed block in the embodiment of the present application;

fig. 3 is a schematic view of the connection structure of the fixing platform, the stabilizing plate and the support rod in the embodiment of the present application.

Reference numerals are as follows: 1. a stair opening; 2. a fixed platform; 21. a protrusion; 3. connecting blocks; 31. mounting grooves; 32. a sliding groove; 33. an expansion bolt; 4. a fixing assembly; 41. a fixed block; 42. fixing grooves; 43. positioning a groove; 44. positioning the bolt; 45. a first positioning hole; 46. a second positioning hole; 47. a third positioning hole; 51. a support bar; 52. a stabilizing plate; 53. a damper; 6. a steel stair.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses steel stair are with bearing girder steel reinforced structure. Referring to fig. 1, the bearing steel beam reinforced structure for the steel stair comprises a fixed platform 2, a stair opening 1 for installing the steel stair 6 is formed in a top floor slab, the fixed platform 2 is embedded in the stair opening 1, one end side of the fixed platform 2 is welded with the top end of the steel stair 6, and the other three sides of the fixed platform 2 are respectively close to three inner side walls of the stair opening 1; the inner side wall of the stair opening 1 is provided with a connecting block 3, one side of the connecting block 3, which is close to the top floor, is provided with an installation groove 31, the top floor is in clamping fit with the installation groove 31, and the connecting block 3 is also provided with a connecting piece for stably connecting the connecting block 3 with the top floor, wherein the connecting piece is an expansion bolt 33 in the embodiment, and can be adjusted into an anchor rod, a rivet and the like according to actual conditions in other embodiments; one side that fixed platform 2 and connecting block 3 are close to each other is laminated mutually, still be equipped with on fixed platform 2 and be used for making fixed platform 2 and connecting block 3 stable fixed subassembly 4 of laminating.

Referring to fig. 2, the fixing assembly 4 includes a fixing block 41, one side of the connecting block 3 close to the fixing platform 2 is provided with a sliding groove 32, the sliding groove 32 is horizontally provided, two ends of the sliding groove 32 are both in an open shape, the sliding grooves 32 on the three connecting blocks 3 are sequentially communicated, the end side of the fixing platform 2 is movably inserted into the sliding groove 32 and is in sliding fit with the sliding groove 32, the sliding direction of the fixing platform 2 is consistent with the opening direction of the sliding groove 32, and the inner side wall of the sliding groove 32 is attached to the end side of the fixing platform 2; a fixing groove 42 is formed in one side, close to each other, of the two sliding grooves 32 in the length direction of the steel stair 6, a positioning groove 43 is formed in the end side, extending into the sliding grooves 32, of the fixing platform 2, the fixing groove 42 and the positioning groove 43 are symmetrically arranged, the side, close to each other, of the fixing groove 42 is communicated with the side, close to each other, of the positioning groove 43, and the width of an opening in the side, close to each other, of the fixing groove 42 is narrower than the width of an opening in the side, far away from each other, of the fixing groove 43; the fixing block 41 is movably inserted into the fixing groove 42 and the positioning groove 43, and the fixing block 41 is in interference fit with the fixing groove 42 and the positioning groove 43; when needs installation fixed platform 2, the technical staff slides fixed platform 2 in the groove 32 that slides, and fixed slot 42 is linked together with constant head tank 43 this moment, and the technical staff inserts fixed block 41 in fixed slot 42 and constant head tank 43, fixes fixed platform 2 and connecting block 3 to make difficult rocking on the emergence horizontal direction between fixed platform 2 and the connecting block 3.

Referring to fig. 3, in order to make the connecting blocks 3 not easy to fall off from the fixing groove 42 and the positioning groove 43, the fixing platform 2 is further provided with a stabilizing member, the stabilizing member comprises a positioning bolt 44, two connecting blocks 3 along the length direction of the steel stair 6 are provided with first positioning holes 45 communicated with the sliding groove 32, the fixing platform 2 is provided with second positioning holes 46 communicated with the positioning groove 43, the fixing block 41 is provided with third positioning holes 47, and the free ends of the positioning bolt 44 sequentially penetrate through the first positioning holes 45, the second positioning holes 46 and the third positioning holes 47 and are in threaded fit with the first positioning holes 45, the second positioning holes 46 and the third positioning holes 47; a first positioning hole 45 is formed in the connecting block 3 perpendicular to the length direction of the steel stair 6, a second positioning hole 46 is formed in the fixing platform 2, and a positioning bolt 44 sequentially penetrates through the first positioning hole 45 and the second positioning hole 46 and is in threaded fit with the first positioning hole 45 and the second positioning hole 46; when a technician slides the fixing platform 2 into the connecting block 3 through the sliding groove 32, the technician sequentially screws the positioning bolt 44 into the first positioning hole 45, the second positioning hole 46 and the third positioning hole 47 to fix the fixing platform 2, the connecting block 3 and the top floor slab, so that the installation stability of the fixing platform 2 is improved.

Referring to fig. 2 and 3, in order to reduce the vertical shaking of the fixed platform 2, a support member is further disposed at the bottom of the fixed platform 2, the support member includes four support rods 51 vertically fixed on the bottom floor, a rectangular stabilizing plate 52 is disposed at the top of the four support rods 51, four corners of the stabilizing plate 52 are respectively penetrated and fixed by the four support rods 51, the tops of the four support rods 51 are fixedly connected with the four corners of the fixed platform 2, the stabilizing plate 52 is disposed in parallel with the fixed platform 2 and is located right below the fixed platform 2, a plurality of dampers 53 are vertically fixed between the fixed platform 2 and the stabilizing plate 52, the bottom ends of the dampers 53 are fixed to one side of the stabilizing plate 52 close to the fixed platform 2, and the top ends of the dampers 53 are abutted against the bottom side of the fixed platform 2, in this embodiment, the dampers 53 are four, and the four dampers 53 are uniformly distributed on the bottom side of the fixed platform 2, in other embodiments, the dampers 53 may be disposed in two, three, five, and the disposition manner is consistent with this embodiment; the upper surface of the fixed platform 2 is fixedly connected with a plurality of bulges 21, and the bulges 21 are densely distributed on the upper surface of the fixed platform 2.

The application embodiment a steel stair are with bearing girder steel reinforced structure's implementation principle does: when the steel stair 6 needs to be installed, a technician firstly installs the connecting block 3 on the stair opening 1, so that the top floor plate is clamped into the installing groove 31 of the connecting block 3, the connecting block 3 and the top floor plate are fixed by penetrating the connecting block 3 and the top floor plate through the expansion bolt 33, then the fixed platform 2 slides into the sliding groove 32 on the connecting block 3, so that the fixed groove 42 is communicated with the positioning groove 43, and then the technician inserts the fixed block 41 into the fixed groove 42 and the positioning groove 43, so that the fixed block 41 is in interference fit with the fixed groove 42 and the positioning groove 43, the three peripheral sides of the fixed platform 2 are fixed with the inner side wall of the stair opening 1, and the stable connection between the fixed platform 2 and the connecting block 3 is realized; at this time, the first positioning hole 45, the second positioning hole 46 and the third positioning hole 47 are coaxially arranged, and a technician sequentially screws the free end of the positioning bolt 44 into the first positioning hole 45, the second positioning hole 46 and the third positioning hole 47 to realize stable connection of the fixing block 41, the connecting block 3 and the fixing platform 2; after the fixed platform 2 is installed, a technician vertically fixes the support rod 51 on the bottom floor slab, penetrates through and is fixedly connected with the stable plate 52 at the upper end of the support rod 51, vertically and fixedly connects four dampers 53 on the upper surface of the stable plate 52, and fixedly welds the top of the support rod 51 and the fixed platform 2, so that the upper ends of the dampers 53 are abutted against the bottom side of the fixed platform 2; and finally, welding and fixing the steel stair 6 and the non-connected side of the fixed platform 2 and the stair opening 1 by a technician for walking.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a steel stair are with bearing steel beam reinforced structure which characterized in that: including being used for carrying out fixed platform (2) with steel stair (6), offer stair mouth (1) that supply fixed platform (2) to install on the top floor, the distolateral top fixed connection with steel stair (6) of fixed platform (2), the inside wall of stair mouth (1) is equipped with connecting block (3), mounting groove (31) have been seted up to one side that connecting block (3) are close to stair mouth (1) inside wall, mounting groove (31) level is laid, the both ends of mounting groove (31) all are the opening form, top floor and mounting groove (31) joint adaptation, still be equipped with on connecting block (3) and be used for making top floor and connecting block (3) fixed connecting piece mutually, connecting block (3) are kept away from the one side that links to each other with stair mouth (1) inside wall and are laminated with fixed platform (2) mutually, still be equipped with on fixed platform (2) and are used for making fixed platform (2) and connecting block (3) stable fixed subassembly (4) of laminating.

2. The load-bearing steel beam reinforced structure for the steel stair according to claim 1, wherein: connecting block (3) are kept away from one side that is connected with the top floor and have been seted up groove (32) that slides, groove (32) level of sliding is laid, the both ends of groove (32) of sliding all are the opening form, fixed platform (2) are close to the distolateral activity of connecting block (3) insert in groove (32) of sliding and with groove (32) sliding adaptation that slides, just fixed platform (2) are close to distolateral and the inside wall homogeneous phase laminating of groove (32) of sliding of connecting block (3).

3. The steel stair load-bearing steel beam reinforced structure of claim 2, wherein: fixed subassembly (4) include fixed block (41), fixed slot (42) have been seted up to one side that the floor roof was kept away from in groove (32) that slides, there is constant head tank (43) fixed platform (2) one side that is close to connecting block (3), fixed slot (42) and the equal level of constant head tank (43) are laid, and fixed slot (42) all are the opening form with the both ends of constant head tank (43), fixed block (41) activity is inserted in fixed slot (42) and constant head tank (43), works as when the distolateral of fixed platform (2) stretches into in groove (32) that slides, fixed slot (42) are linked together with constant head tank (43), just fixed block (41) and fixed slot (42), the equal interference fit of constant head tank (43).

4. The steel stair load-bearing steel beam reinforced structure of claim 3, wherein: the openings of the side, close to each other, of the fixing groove (42) and the positioning groove (43) are narrower than the openings of the side, far away from each other, of the fixing groove and the positioning groove.

5. The steel stair load-bearing steel beam reinforced structure of claim 4, wherein: the fixing assembly (4) further comprises a stabilizing part used for enabling the fixing block (41) to be stably located in the fixing groove (42) and the positioning groove (43), the stabilizing part comprises a positioning bolt (44), a first positioning hole (45) communicated with the sliding groove (32) is formed in the connecting block (3), a second positioning hole (46) communicated with the positioning groove (43) is formed in the fixing platform (2), a third positioning hole (47) is formed in the fixing block (41), the free end of the positioning bolt (44) is sequentially movably inserted into the first positioning hole (45), the second positioning hole (46) and the third positioning hole (47), and the positioning bolt (44) is in threaded fit with the first positioning hole (45), the second positioning hole (46) and the third positioning hole (47) in a uniform mode.

6. The steel stair load-bearing steel beam reinforced structure of claim 5, wherein: the bottom of fixed platform (2) is equipped with the support piece that carries out auxiliary stay to fixed platform (2), support piece includes bracing piece (51), bracing piece (51) are equipped with four, four edges department of fixed platform (2) bottom is located respectively in bracing piece (51), bracing piece (51) are vertical to be laid, just the bottom and the bottom floor of bracing piece (51) are fixed mutually.

7. The steel stair load-bearing steel beam reinforced structure according to claim 6, wherein: bracing piece (51) top is equipped with steadying plate (52) that promote fixed platform (2) stability, four edges of steadying plate (52) are run through by four bracing pieces (51) respectively, steadying plate (52) are on a parallel with fixed platform (2) and lay and are located fixed platform (2) under, be equipped with between steadying plate (52) and fixed platform (2) and be used for absorbing attenuator (53).

8. The steel stair load-bearing steel beam reinforced structure according to claim 7, wherein: the upper surface of the fixed platform (2) is densely provided with a plurality of bulges (21).