CN217500850U - Assembled steel stair - Google Patents

Abstract

The utility model discloses an assembled steel stair, run through from top to bottom including three-layer steel platform the many flexible stands of steel platform, flexible stand's bottom is passed through the base of taking the bolt and is connected with marking time of prefabricated stair, flexible stand's top sets up rings, flexible stand's length exist the difference and respectively with co-altitude prefabricated stair mark time and connect, steel platform edge all sets up the high guardrail of surrounding type with the center, fretwork in the middle of the steel platform, just mark time through stair between the steel platform and connect. The utility model discloses an assembled steel stair for prefabricated staircase plays the effect at prefabricated staircase escape way and construction operation platform well, forms overall structure with each component connection through the bolt, effectively avoids being similar to the construction process of installing again after scaffold dismantles, reduces the unnecessary engineering time, improves the efficiency of construction.

Description

Assembled steel stair

Technical Field

The utility model relates to an engineering and building technical field, more specifically say, relate to an assembled steel stair.

Background

The assembly type building refers to a building which is formed by transferring a large amount of field operation work in the traditional building mode to a factory, processing and manufacturing building components and accessories (such as floor slabs, wall boards, stairs, balconies and the like) in the factory, transporting the components and accessories to a building construction site, and assembling and installing the components and the accessories on the site in a reliable connection mode. In the fabricated building, the construction of the prefabricated fabricated stairway lags behind the construction of a main structure by one layer, and part of field construction processes need to be completed in a stairway. The scaffold is used as a working platform which is set up to ensure that each construction process is carried out smoothly in the prior art, has the characteristics of temporary setting and temporary removal, increases a plurality of unnecessary construction processes for the whole construction, and reduces the on-site construction efficiency.

Disclosure of Invention

In order to overcome the low problem of the efficiency of construction that temporarily set up the scaffold frame and lead to among the prior art, to providing prefabricated assembled stairwell between providing escape way and construction operation platform, the utility model discloses an assembled steel stair.

The utility model discloses technical scheme as follows:

the utility model provides an assembled steel stair, includes three-layer steel platform and runs through from top to bottom the many flexible stands of steel platform, the bottom of flexible stand is passed through the base of taking the bolt and is connected with marking time of prefabricated stair, the top of flexible stand sets up rings, the length of flexible stand exist the difference and respectively with co-altitude not prefabricated stair mark time and connect, steel platform edge all sets up the high guardrail of surrounding type with the center, fretwork in the middle of the steel platform, just mark time through stair between the steel platform and connect.

Foretell assembled steel stair, the steel platform includes that many sets up the crossbeam in the below and sets up the landing slab of crossbeam top, the landing slab with crossbeam welded connection.

Further, the platform board is the decorative pattern steel sheet of thickness 3 millimeters.

Further, the stair steps are connected with the cross beam through M14 bolts.

Furthermore, a right-angle steel plate is arranged between the cross beam and the telescopic upright post, and two side faces of the right-angle steel plate are respectively connected with the cross beam and the telescopic upright post through bolts.

Foretell assembled steel stair set up at steel platform center the high guardrail includes four end to end connection's assembly guardrail, assembly guardrail both sides are the angle steel of vertical setting, set up the enclosure guardrail bar of many horizontal directions between the angle steel.

Foretell assembled steel stair sets up at steel platform edge the high guardrail includes a plurality of enclosure railing, enclosure railing pass through the angle steel with flexible stand is connected.

Furthermore, the enclosure guardrail is connected with the angle steel in a welding mode.

In the assembled steel stair, the telescopic upright post is of a sectional structure or a whole-section structure.

The assembling type steel stair is characterized in that assembling guardrails are arranged on two sides of each stair step, and the assembling guardrails of the stair steps are connected with the assembling guardrails of the steel platform.

Foretell assembled steel stair, the bottom steel platform below sets up a plurality of support columns, the bottom of support column through the base of taking the bolt with prefabricated stair step on and be connected, the top of support column is passed through the right angle steel sheet and is connected the steel platform.

According to the above scheme the utility model discloses, its beneficial effect lies in, the utility model discloses an assembled steel stair for prefabricated staircase plays the effect at prefabricated staircase escape way and construction operation platform well, forms overall structure with each component connection through the bolt, effectively avoids being similar to the construction process of installing again after scaffold dismantles, reduces the unnecessary engineering time, improves the efficiency of construction.

1. And each component is processed in a factory and installed on site, so that the construction period is saved.

2. The telescopic upright posts and the cross beam, the railings and the telescopic upright posts, and the stair steps and the cross beam are all connected by M14 bolts, so that the installation and the disassembly are convenient.

3. Can be according to the size of different staircases, the steel stair of different sizes is tailor-made, and the flexibility is high.

4. Compared with the traditional steel pipe stairs, the steel pipe stairs are neat and high in appearance and safety.

5. Steel stair accessible tower crane successive layer promotes the use, and reuse rate is high, and reduce cost saves the time limit for a project.

6. When the channel is used as a construction channel, the channel can also be used as an operation platform for binding steel bars, installing aluminum molds and reinforcing.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is the utility model discloses and the structure schematic diagram between the prefabricated staircase.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic view of the structure of the assembled guard rail.

Wherein, in the figures, the respective reference numerals:

1. a telescopic upright post; 2. a steel platform; 21. a platform plate; 3. enclosing a guardrail bar; 4. stair stepping; 5. assembling a guardrail; 51. assembling a railing; 52. angle iron; 6. and (6) prefabricating the stairs.

Detailed Description

In order to make the technical problem, technical solution and beneficial effects to be solved by the present invention more clearly understood, the following description is made in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "disposed" or "connected" to another element, it can be directly or indirectly disposed on the other element. The terms "upper", "lower", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and should not be construed as limiting the technical solution. "Multi" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In this embodiment, the main component of use includes flexible stand 1, crossbeam, encloses guardrail bar 3, landing slab 21 and angle steel, and wherein, crossbeam and flexible stand 1 all adopt 8# square tube, enclose guardrail bar 3 and be 4# square tube, and landing slab 21 is the decorative pattern steel sheet of thickness 3 millimeters, and the specification of angle steel is 40 x 3 mm.

The integral structure of the assembled steel stair is as follows:

totally three-layer steel platform 2 structure, four flexible stand 1 sets up in steel platform 2's four corners department, runs through steel platform 2 from top to bottom, and flexible stand 1 can be sectional type structure, also can be whole section structure, and the former makes the length of flexible stand 1 and every layer of steel platform 2 highly equal, then through every section flexible stand 1 of welded connection, the latter directly uses whole flexible stand 1, then passes through each layer of steel platform 2 of bolted connection in the middle of being four corners set up flexible stand 1.

The bottom of the telescopic upright post 1 is connected with the step of the prefabricated staircase 6 through a base with bolts, the base is flatly placed on the step of the prefabricated staircase 6 and is inserted into the step of the prefabricated staircase 6 through bolts, and the base is connected with the telescopic upright post 1 in a welding mode or is connected with the telescopic upright post through bolts. When the telescopic upright post 1 is installed, the expansion bolts are strictly forbidden to be connected with the steps of the prefabricated staircase 6. The telescopic upright post 1 is of a pipe fitting structure which can be folded, and the contraction effect is realized through an elastic piece, so that the telescopic upright post can be adapted to the step height of any prefabricated staircase 6.

No matter be the flexible stand 1 of segmentation or whole section, its top all sets up rings, and after accomplishing this floor building structure's construction, accessible tower crane rebound promotes gradually to the one deck in. Because the telescopic upright post 1 is arranged on the steps of the prefabricated staircase 6, the length of the telescopic upright post 1 is different and is respectively connected with the steps of the prefabricated staircase 6 with different heights. Preferably, in order to improve the stability of the assembled steel stair, a plurality of support columns can be additionally arranged below the steel platform 2 at the bottommost layer and are respectively arranged on the periphery of the telescopic upright post 1. Its mounting means can be the same with flexible stand 1, and the base that takes the bolt is passed through to the bottom of support column is connected with marking time of prefabricated staircase 6, and right angle steel sheet connection steel platform 2 is passed through at the top of support column.

The steel platform 2 comprises a plurality of staggered cross beams arranged below and a platform plate 21 arranged above the cross beams, and the platform plate 21 is connected with the cross beams in a welding manner. The crossbeam is violently, indulges the setting, welds each other to form steel platform 2's skeleton, then a plurality of platform boards 21 of tiling in the skeleton top that the crossbeam formed, through welded connection crossbeam, form steel platform 2. Steel platform 2 is back font structure, middle fretwork, and 2 edges of steel platform all set up the high guardrail of surrounding type with the center, and the fretwork in the middle of the steel platform 2, and mark time 4 connections through stair between the steel platform 2.

When installing steel platform 2 at flexible stand 1, the crossbeam of four corners department passes through the bolt to be connected with flexible stand 1, and the right angle steel sheet between crossbeam and the flexible stand 1, the both sides face of right angle steel sheet are respectively through bolted connection crossbeam and flexible stand 1, and flexible stand 1 is the both sides of perpendicular all to be connected with the crossbeam through the right angle steel sheet to make steel platform 2 install on flexible stand 1. In this embodiment, the stair steps 4 are connected to the cross-beam by M14 bolts.

The high guardrail that sets up at 2 edges of steel platform forms for the enclosure guardrail pole 3 of horizontal direction, and the both ends of enclosing guardrail pole 3 are passed through angle bar 52 and are connected with flexible stand 1 with the combination of bolt, the both sides face of angle steel respectively with enclose guardrail pole 3 flexible stand 1 is connected. The high guardrail that sets up at 2 centers of steel platform includes four end-to-end connection's assembly guardrail 5, and 5 both sides of assembly guardrail are the angle steel of vertical setting, set up many horizontal direction between the angle steel and enclose guardrail bar 3, and the both sides face of angle steel is connected two parts that set up perpendicularly respectively and is enclosed guardrail bar 3. Wherein, enclose guardrail bar 3 and angle steel welded connection, also can be bolted connection.

The two sides of the stair step 4 are provided with assembly guardrails 5, the assembly guardrails 5 of the stair step 4 are connected with the assembly guardrails 5 of the steel platform 2, and vertical angle steel is arranged at the corners of the assembly guardrails 5.

When the assembly type steel staircase in the embodiment is installed, firstly, the height of each layer of steel platform 2 of the assembly type steel staircase is calculated and designed according to the structure of the staircase designed by a construction building, so that the height of each layer of platform meets the requirement of the whole building staircase, and the requirement that the steel platform 2 can be used as an operation platform for reinforcement bar binding construction, aluminum die installation and reinforcement is considered. After the height of each steel platform 2 is determined, each component is obtained by machining. The connection of marking time of flexible stand 1 in bottom and prefabricated staircase 6 is accomplished earlier, through bolted connection back, installs the crossbeam of first layer steel platform 2. The steel platform 2 framework formed by the welded cross beams is connected with the telescopic upright posts 1 through angle irons 52 and bolts, and a platform plate 21 is laid and welded above. And then installing a second layer of telescopic upright posts 1, installing the high guardrails at the edges and the center of the first layer of steel platform 2 on the basis of the second layer of telescopic upright posts 1, and then installing the cross beams of the second layer of steel platform 2 by using bolts to form a framework structure of the second layer of steel platform 2, and installing the stair steps 4 of the first layer of steel platform 2 by using the bolts on the basis, wherein after the completion, the completion of the first layer of steel platform 2 is meant. And repeating the steps to gradually finish the second layer and the third layer of the steel platform 2. And finishing the structure of the whole assembly type steel stair.

So, when the construction was when layer building, steel stair accomplished whole construction, and after accomplishing this layer of construction process, the accessible hoist and mount was with steel stair integral hoisting to the upper story structure in.

Each steel platform 2 of steel stair in this embodiment all assembles through the bolt, after current construction, this steel platform 2 under the detachable, whole stock and the equipment again of carrying on. If flexible stand 1 adopted be the block structure, when reassembling, can be according to the demand, the high distribution of each steel platform 2 of readjustment, if flexible stand 1 is the segment structure, only need change flexible stand 1 height, can install new steel stair again.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The utility model provides an assembled steel stair, its characterized in that includes three-layer steel platform and runs through from top to bottom the many flexible stands of steel platform, the bottom of flexible stand is passed through the base of taking the bolt and is connected with marking time of prefabricated stair, the top of flexible stand sets up rings, the length of flexible stand exist the difference and respectively with co-altitude the connection of marking time of prefabricated stair, steel platform edge all sets up the high guardrail of surrounding type with the center, fretwork in the middle of the steel platform, just mark time through stair between the steel platform and connect.

2. The assembled steel staircase of claim 1, wherein the steel platform comprises a plurality of lower cross beams and a plurality of landing plates disposed above the cross beams, the landing plates being welded to the cross beams.

3. An assembled steel staircase as defined in claim 2, wherein said landing plate is a patterned steel plate with a thickness of 3 mm.

4. The assembled steel stairway as claimed in claim 2, wherein the stair steps are connected to the cross bar by M14 bolts.

5. An assembled steel staircase as defined in claim 2, wherein a right angle steel plate is provided between the cross member and the telescopic vertical post, and both side surfaces of the right angle steel plate are respectively connected with the cross member and the telescopic vertical post through bolts.

6. The assembly type steel stair as claimed in claim 1, wherein the high guardrail arranged at the center of the steel platform comprises four assembly guardrails connected end to end, two sides of the assembly guardrails are vertically arranged angle steels, and a plurality of horizontally arranged enclosure guardrails are arranged between the angle steels.

7. An assembled steel staircase as defined in claim 1, wherein said high railing arranged at the edge of said steel platform comprises a plurality of enclosure rails, said enclosure rails being connected to said telescopic columns by angle steel.

8. An assembled steel staircase as defined in claim 6 or 7, wherein said fencing rail is welded to said angle steel.

9. The assembly type steel stair of claim 1, wherein assembly guardrails are arranged on two sides of the stair step, and the assembly guardrails of the stair step are connected with the assembly guardrails of the steel platform.

10. An assembled steel staircase as claimed in claim 1, wherein a plurality of support columns are provided below the steel landing at the lowest floor, the bottom of each support column is connected with the step of the prefabricated staircase by a base with bolts, and the top of each support column is connected with the steel landing by a right angle steel plate.

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