CN211396345U

CN211396345U - Large-span beam type prefabricated staircase

Info

Publication number: CN211396345U
Application number: CN201921736146.7U
Authority: CN
Inventors: 张超; 周诗宇; 赵海斌
Original assignee: Shanghai Futielong Residential Industrial Development Co ltd
Current assignee: Shanghai Futielong Residential Industrial Development Co ltd
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-09-01
Anticipated expiration: 2029-10-16

Abstract

The utility model belongs to the technical field of the technique of construction and specifically relates to a large-span beam type prefabricated staircase is related to, two sections stair sections that set up including the slope, the level sets up the changeover portion between two sections stair sections, two sections stair sections and changeover portion integrated into one piece, the stair section includes the horizontal segment of marking time of interval dislocation set such as a plurality of, all is equipped with many structure muscle in the horizontal segment of marking time, the face and the bottom plate of a plurality of horizontal segment of marking time are equipped with respectively, indulge muscle and lower part with the upper portion of many structure muscle butts the muscle, muscle and lower part are indulged on upper portion and are indulged the muscle and buckle the setting and between the two vertical tie piece of being provided with in structure muscle week side. This prefabricated staircase is through tieing bundle upper portion on the structure muscle of every section stair section and indulging the muscle with the lower part to indulge the muscle with upper and lower part and buckle according to the contained angle between stair section and the changeover portion, fasten a plurality of drawknot piece one-to-ones between the three again, pour the shaping in the lump afterwards, link up inseparable intensity enhancement, stability and increase substantially, it is more safe.

Description

Large-span beam type prefabricated staircase

Technical Field

The utility model belongs to the technical field of the technique of construction and specifically relates to a large-span beam type prefabricated staircase is related to.

Background

At present, the reinforced concrete stairs can be divided into a cast-in-place type stair and a prefabricated assembly type stair according to construction modes, the cast-in-place reinforced concrete stairs are also called as integral concrete stairs and are formed by erecting a formwork, binding reinforcing steel bars and pouring concrete on a construction site, the stair is good in integrity, high in rigidity and favorable for earthquake resistance, but long in construction period and slow in progress, a demolition template needs to be erected, the quality is not easy to guarantee, and the defect repairing difficulty is high.

The prefabricated reinforced concrete stair is characterized in that the stair is divided into a rest plate, a stair beam and a stair section, the hook members are prefabricated in a processing plant or a construction site, and during construction, the prefabricated hook members are assembled and welded, are small, light and easy to manufacture, but are complex and slow in construction.

In order to solve the problems, the Chinese patent with the patent publication number of CN208363460U provides a reinforced concrete assembled stair with a post-pouring section, which comprises a plurality of prefabricated stairs which are parallel to each other, the post-pouring section is arranged between the prefabricated stair sections, the prefabricated stair sections are transversely spliced through the post-pouring section, distribution reserved ribs are arranged in the post-pouring section, a plurality of hanging points and pin key reserved holes are arranged on each prefabricated stair section, and the pin key reserved holes are distributed at two ends of each prefabricated stair section.

When the floor interlamellar spacing is higher, the length of a single section of prefabricated staircase is limited, is not enough to accomplish and builds, if the assembly of forcing is in the same place two sections concatenation, the bulk strength is lower, easily produces the condition such as crack, fault to there is certain potential safety hazard, therefore above-mentioned scheme remains to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high big span beam type prefabricated staircase that the steadiness is good of intensity.

The utility model discloses a can realize through following technical scheme:

the utility model provides a large-span beam type prefabricated staircase, sets up in two sections including two sections stair sections, the level that the slope set up transition section between the stair section and tip level set firmly the stair section is kept away from platform slab on the transition section terminal surface, two sections stair section with transition section integrated into one piece, the stair section includes the horizontal segment of marking time of interval dislocation set such as a plurality of, all be equipped with many structure muscle in the horizontal segment of marking time, a plurality of the face and the bottom plate of horizontal segment of marking time are equipped with respectively, with many the muscle is indulged to the upper portion of structure muscle butt and the muscle is indulged to the lower part, the muscle is indulged on upper portion with the muscle is indulged in the lower part buckle set up and between the two vertically be provided with and be confined in structure muscle week side's.

By adopting the technical scheme, the prefabricated staircase is provided with two stair sections, so that the prefabricated staircase has larger span and can adapt to floors with higher inter-floor distance, and the transition section is arranged between the two stair sections, so that a user can slightly rest when the user is tired and powerless during ascending, and the humanization degree is higher; every section stair section is all through tieing bundle upper portion on the structure muscle and indulging muscle and lower part and indulging the muscle to indulge the muscle with upper and lower part and buckle according to the contained angle between stair section and the changeover portion, fasten a plurality of drawknot one-to-ones again between the three, pour the shaping in unison afterwards, it strengthens, stability improves by a wide margin to link up inseparable intensity, more safety, thereby has solved the lower shortcoming of intensity when the concatenation of large-span prefabricated staircase is together.

Further setting the following steps: the upper longitudinal ribs and the bending edges of the lower longitudinal ribs are horizontally arranged in the step horizontal section, and the bending included angles of the upper longitudinal ribs and the lower longitudinal ribs are between 152 degrees and 160 degrees.

By adopting the technical scheme, the inclination angle between the adjacent steps is in a gentle stair slope between 30 degrees and 38 degrees, so that a user is more comfortable when going upstairs.

Further setting the following steps: the drawknot spare includes the drawknot muscle, links up pole and fastening bolt, two the drawknot muscle is parallel to each other, the linking pole sets firmly in two the top of drawknot muscle, the bottom of linking pole link up set up with the arc wall of muscle adaptation is indulged on upper portion, the drawknot muscle is close to the one end of linking pole be crotch form and with the week side butt of structure muscle, the fastening bolt level runs through two the drawknot muscle, just the fastening bolt is located the below of muscle is indulged to the lower part and with the muscle is perpendicular is indulged to the lower part.

Through adopting above-mentioned technical scheme, when operating personnel will link up the arc wall overlap joint of pole on the muscle is indulged to upper portion, make the one end of two drawknot muscle respectively the hook locate, indulge the muscle with upper portion and be in on the structure muscle of its below perpendicularly, drag the other end of drawknot muscle afterwards, run through the fastener level between two drawknot muscle again, and indulge the perpendicular butt in bottom of muscle with the lower part, thereby indulge the muscle with upper portion, the muscle is indulged to the lower part and the structure muscle is firm together, link up stably and avoid rocking, and reduced the preparation deviation of prefabricated stair, the product quality is improved.

Further setting the following steps: the drawknot muscle includes crotch section and linking section, the crotch section in the tip that the muscle is far away is indulged on upper portion is perpendicular to the indent and is equipped with and links up the groove, the one end of linking section be equipped with suddenly with link up the lug that the groove slided the adaptation, link up the groove diapire with fixedly connected with spring between the lug.

By adopting the technical scheme, the controllability of the spring in assembly is higher, the stretching is more compact, the stretching angle is limited by the sliding fit between the convex block and the connecting groove, the stretching direction has guidance, and the pulling consolidation is more stable.

Further setting the following steps: the extension limit of the spring is smaller than the depth of the joining groove, and a plurality of mounting holes matched with the fastening bolts in an inserted manner are formed in the circumferential sides of the two tie bars in a penetrating manner along the radial direction of the tie bars.

By adopting the technical scheme, the situation that the lug is separated from the connecting groove in the stretching process is avoided, the distance between the plurality of mounting holes and the lower longitudinal rib is different, the prefabricated staircase with different thicknesses is adaptable, and the prefabricated staircase is wide in adaptability and high in universality.

Further setting the following steps: and hoisting embedded parts are embedded in two sides of the two stepping horizontal sections, and the upper end surfaces of the hoisting embedded parts are flush with the stepping horizontal sections.

Through adopting above-mentioned technical scheme, set up hoist and mount and bury the piece to prefabricated staircase after the preparation is accomplished can hoist smoothly to the floor between and install.

Further setting the following steps: the hoisting embedded part comprises an embedded plate, a sleeve and a hook piece, wherein the embedded plate is obliquely embedded between the upper longitudinal ribs and the lower longitudinal ribs, the sleeve is fixedly embedded in the vertical direction of the embedded plate, the bottom wall of the sleeve and the bottom surface of the embedded plate are positioned on the same plane, a hoisting thread groove is vertically and inwards concavely arranged on the upper end surface of the sleeve, and the hook piece vertically extends upwards and is fixedly arranged at the top of the embedded plate.

Further setting the following steps: the length of the sleeve is smaller than the depth of the hoisting thread groove, and the hooks of the hook elements are perpendicular to the rod part and extend towards the direction far away from the sleeve.

Through adopting above-mentioned technical scheme, the inclination of built-in fitting keeps unanimous with the stair section, and hoist and mount rope tip sets up hoisting screw and hoist and mount thread groove threaded connection, with hoisting screw week side articulated installation ring afterwards, hooks and establishes on a plurality of hook pieces to it is more firm to make the hoist and mount process, avoids unexpected circumstances such as smooth tooth to take place, and the security is higher.

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

(1) the utility model discloses a tie up bundle upper portion on the structure muscle of every section stair section and indulge the muscle with the lower part to indulge the muscle with upper and lower part and buckle according to the contained angle between stair section and the changeover portion, fasten a plurality of drawknot piece one-to-ones again between the three, pour the shaping in the lump afterwards, link up inseparable intensity enhancement, stability and increase substantially, more safety.

(2) The utility model discloses an inclination that sets up the built-in fitting keeps unanimous with the stair section, and hoist and mount rope tip sets up hoisting screw and hoist and mount thread groove threaded connection, with hoisting screw week side articulated installation ring afterwards, hooks and establishes on a plurality of hook pieces to it is more firm to make the hoist and mount process, avoids unexpected circumstances such as smooth tooth to take place, and the security is higher.

Drawings

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

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 shows a schematic cross-sectional view of a fastener;

FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 3;

figure 5 shows a schematic cross-sectional view of a lifting insert.

Reference numerals: 1. a stair section; 11. a stepping horizontal section; 12. constructing a rib; 13. an upper longitudinal rib; 14. lower longitudinal ribs; 2. a transition section; 3. a platform plate; 4. a pulling member; 41. stretching the ribs; 401. a hook section; 402. a joining section; 403. a joining groove; 404. a bump; 405. a spring; 42. a connecting rod; 43. an arc-shaped slot; 44. fastening bolts; 45. mounting holes; 5. hoisting the embedded part; 51. pre-burying a plate; 52. a sleeve; 53. a hook member; 54. and (5) hoisting the thread groove.

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 large-span beam type prefabricated staircase, including two sections stair sections 1 that the slope set up, consequently the span is great can adapt to the higher floor of building interval, and two sections stair sections 1 constitute by the horizontal segment 11 of marking time of interval dislocation set such as a plurality of, the horizontal segment 11 of marking time is rectangular form, still include integrative changeover portion 2 that sets up between two sections stair sections 1, and the tip level sets firmly landing slab 3 on changeover portion 2 terminal surfaces is kept away from to stair section 1, and 2 up ends of changeover portion keep the level, can do the rest and rest when the user is comparatively tired powerless on the upper building slightly, humanized degree is higher.

Referring to fig. 1 and 2, four construction ribs 12 are arranged in each step horizontal section 11, each two of the four construction ribs 12 are in a group and are distributed in an up-down corresponding manner, the plate surfaces and the bottom plates of a plurality of step horizontal sections 11 are respectively provided with a plurality of upper longitudinal ribs 13 and lower longitudinal ribs 14 which are equal in length and abut against the plurality of construction ribs 12, the upper longitudinal ribs 13 and the lower longitudinal ribs 14 are arranged in a bending manner, the bending edges of the upper longitudinal ribs 13 and the lower longitudinal ribs 14 are horizontally arranged in the step horizontal sections 11, and the bending included angles of the upper longitudinal ribs 13 and the lower longitudinal ribs 14 are between 152 degrees and 160 degrees, so that the inclination angle between adjacent steps is in a relatively slow stair slope between 30 degrees and 38 degrees, and a user can go upstairs more comfortably; and a tie 4 for reinforcing strength is arranged among the upper longitudinal rib 13, the lower longitudinal rib 14 and the structural rib 12.

Referring to fig. 3 and 4, the tie member 4 includes two parallel tie bars 41 with one end in a hook shape, including a hook section 401 and a joining section 402, the hook section 401 is provided with a joining groove 403 vertically inwards at the end far from the upper longitudinal bar 13, one end of the joining section 402 is provided with a cylindrical projection 404 matched with the joining groove 403 in a sliding manner, the sliding fit between the block and the joining groove 403 limits the stretching angle, the stretching direction has guidance, so that the pulling-up and the joining are more stable, a spring 405 is fixedly connected between the bottom wall of the joining groove 403 and the projection 404, and the arrangement of the spring 405 can ensure that the controllability is higher when an operator assembles and the stretching is more compact; the extension limit of the spring 405 is less than the depth of the sliding groove, so as to prevent the protrusion 404 from being separated from the engaging groove 403 during the extension process.

Referring to fig. 3 and 4, a gap matched with the diameter of the upper longitudinal rib 13 is reserved between the two hook sections 401, a rectangular joint rod 42 is horizontally and fixedly connected to the top of each hook section 401, an arc-shaped groove 43 matched with the circumferential side of the upper longitudinal rib 13 in an abutting mode is formed in the center of the bottom of the joint rod 42 in a penetrating mode, a plurality of mounting holes 45 matched with the fastening bolts 44 in a penetrating mode are formed in one end, away from the hook sections 401, of each joint section 402 in a penetrating mode in the radial direction, a cylindrical fastening bolt 44 is movably inserted between the two tie ribs 41 through the mounting holes 45 and is located below the lower longitudinal rib 14 and perpendicular to the lower longitudinal rib 14, the distance between the mounting holes 45 and the lower longitudinal rib 14 is different, the prefabricated stairway is suitable for prefabricated stairways with different thicknesses, and is wide in adaptability and high in universality.

When operating personnel indulges the muscle 13 with the arc groove 43 overlap joint of linking pole 42 in the upper portion, make the one end of two drawknot muscle 41 hook respectively locate, indulge muscle 13 with upper portion and be perpendicular and be in on the structure muscle 12 of its below, pull the other end of drawknot muscle 41 afterwards, run through the fastener level between two drawknot muscle 41 again, and indulge the perpendicular butt in bottom of muscle 14 with the lower part, thereby indulge muscle 13 with upper portion, muscle 14 and structure muscle 12 are indulged to the lower part and are together firm, it avoids rocking to link up stably, and the preparation deviation of prefabricated stair has been reduced, the finished product quality is improved.

Referring to fig. 5, the two sides of the two-section stepping horizontal section 11 are also embedded with the embedded parts 5 extending to the hoisting, the upper end faces of the embedded parts 5 are flush with the stepping horizontal section 11, and the embedded parts 5 are arranged, so that the prefabricated staircase after being manufactured can be smoothly hoisted to the floor for installation.

The hoisting embedded part 5 comprises a rectangular embedded plate 51 between an inclined embedded part and an upper longitudinal bar 13 and a lower longitudinal bar 14, a sleeve 52 is fixedly embedded in the center of the embedded plate 51, the bottom wall of the sleeve 52 and the bottom surface of the embedded plate 51 are positioned on the same plane, the upper end surface of the sleeve 52 is vertically and inwardly concavely provided with a lifting thread groove 54, the top of the embedded plate 51 vertically and upwardly extends and is fixedly provided with a hook member 53, the length of the sleeve 52 is smaller than the depth of the lifting thread groove 54, hooks of the hook members 53 are all vertical to the rod part and extend towards the direction far away from the sleeve 52, the inclination angle of the embedded part is consistent with that of the stair section 1, the end part of a lifting rope is provided with a lifting screw rod which is in threaded connection with the lifting thread groove 54, then, the peripheral sides of the lifting screw rods are hinged with an installation ring which is hooked on the hook, therefore, the hoisting process is firmer, the occurrence of accidental situations such as tooth slipping is avoided, and the safety is higher.

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

1. The utility model provides a large-span beam type prefabricated staircase, includes two sections stair sections (1) that the slope set up, the level sets up in two sections changeover portion (2) between stair section (1) and tip level set firmly stair section (1) are kept away from landing slab (3) on changeover portion (2) terminal surface, its characterized in that: two sections stair section (1) with changeover portion (2) integrated into one piece, stair section (1) include horizontal segment (11) of marking time of a plurality of equidistant dislocation set, all be equipped with many structure muscle (12) in horizontal segment (11) of marking time, a plurality of the face and the bottom plate of horizontal segment (11) of marking time are equipped with respectively, with many muscle (13) and lower part are indulged to the upper portion of structure muscle (12) butt are indulged muscle (14), muscle (13) are indulged on upper portion with muscle (14) are indulged in lower part buckle set up and between the two vertically be provided with and are confined in construct the drawknot spare (4) of muscle (12) week side.

2. The large-span girder prefabricated staircase according to claim 1, wherein: the bending edges of the upper longitudinal ribs (13) and the lower longitudinal ribs (14) are horizontally arranged in the stepping horizontal section (11), and the bending included angle between the upper longitudinal ribs (13) and the lower longitudinal ribs (14) is 152-160 degrees.

3. The large-span girder prefabricated staircase according to claim 1, wherein: lacing part (4) are tied including lacing wire (41), join pole (42) and fastening and are tied (44), two lacing wire (41) are parallel to each other, join pole (42) set firmly in two the top of lacing wire (41), the bottom of joining pole (42) link up set up with arc wall (43) of muscle (13) adaptation is indulged on upper portion, lacing wire (41) are close to the one end of joining pole (42) is the crotch form and with construct the week side butt of muscle (12), fastening is tied (44) level and runs through two lacing wire (41), just fastening is tied (44) and is located the below of muscle (14) is indulged in the lower part, and with muscle (14) are indulged in the lower part is perpendicular.

4. The large-span girder prefabricated staircase according to claim 3, wherein: the tie bar (41) comprises a hook section (401) and a connecting section (402), the hook section (401) is arranged at the end part far away from the upper longitudinal bar (13) and is vertically inwards concave to form a connecting groove (403), one end of the connecting section (402) is suddenly provided with a convex block (404) matched with the sliding of the connecting groove (403), and the bottom wall of the connecting groove (403) is fixedly connected with a spring (405) between the convex blocks (404).

5. The large-span girder prefabricated staircase according to claim 4, wherein: the stretching limit of the spring (405) is smaller than the depth of the connecting groove (403), and a plurality of mounting holes (45) which are matched with the fastening bolt (44) in an inserted manner are formed in the circumferential sides of the two tie bars (41) in a penetrating manner along the radial direction of the circumferential sides.

6. The large-span girder prefabricated staircase according to claim 1, wherein: and hoisting embedded parts (5) are embedded in two sides of the two mark time horizontal sections (11), and the upper end surfaces of the hoisting embedded parts (5) are flush with the mark time horizontal sections (11).

7. The large-span girder prefabricated staircase according to claim 6, wherein: the hoisting embedded part (5) comprises an embedded plate (51), a sleeve (52) and a hook piece (53), wherein the embedded plate (51) is obliquely embedded between the upper longitudinal rib (13) and the lower longitudinal rib (14), the sleeve (52) is fixedly embedded in the vertical direction of the embedded plate (51), the bottom wall of the sleeve (52) and the bottom surface of the embedded plate (51) are positioned on the same plane, a hoisting thread groove (54) is vertically and inwards concave on the upper end surface of the sleeve (52), and the hook piece (53) vertically extends upwards to be fixedly arranged at the top of the embedded plate (51).

8. The large-span girder prefabricated staircase according to claim 7, wherein: the length of the sleeve (52) is smaller than the depth of the hoisting thread groove (54), and the hooks of the hook elements (53) are perpendicular to the rod parts of the hook elements and extend towards the direction far away from the sleeve (52).