CN214531601U

CN214531601U - Prefabricated staircase for assembly type structure

Info

Publication number: CN214531601U
Application number: CN202120509555.4U
Authority: CN
Inventors: 顾忠成; 陈双琳; 张丙南; 王灿; 周坚; 王婷
Original assignee: Shengxin Construction Group Co ltd
Current assignee: Shengxin Construction Group Co ltd
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2021-10-29
Anticipated expiration: 2031-03-10

Abstract

The utility model belongs to the technical field of prefabricated building and specifically relates to a prefabricated staircase for prefabricated building has solved when the object that bears on the ladder body overweight, and bearing platform and both sides fixed block are easy to be cracked under the exogenic action, cause the problem of stair damage, and it includes the ladder body and bearing platform, the ladder body includes ladder top, ladder end and a plurality of step, the confession has been seted up on the bearing platform the first support groove of ladder top embedding, and supply the second support groove of ladder end embedding, the ascending both sides of bearing platform length direction all are connected with a plurality of fixed blocks, the bearing platform is kept away from one side of the ladder body is connected with the fixed strip, the one end that the ladder body was kept away from to the bearing platform bottom is lower than the one end that is close to the ladder body. This application has the installation intensity of strengthening the bearing platform in the ladder well, improves the effect of bearing platform's bearing capacity.

Description

Prefabricated staircase for assembly type structure

Technical Field

The application relates to the field of assembly type structures, in particular to a prefabricated staircase for an assembly type structure.

Background

At present, assembly buildings are adopted in part of building engineering to build a building prototype, the assembly buildings comprise prefabricated wallboards, buildings, beams and columns and the like, the site pouring operation of a large number of building structures is transferred to a factory for carrying out, and the building modules after being manufactured and maintained are transported to a construction site for installation, so that the generation and the distribution of building wastes can be reduced, the engineering progress is accelerated, and the construction cost is reduced, therefore, the proportion of the assembly buildings in the newly-built buildings is increased year by year.

Assembled building is general with prefabricated wallboard successive layer upwards accumulation, form the floor and run through the ladder well of stair, assembled stair divide into prefabricated terraced body and bearing platform, the bearing platform both sides are connected with the fixed block, the ladder well lateral wall is reserved in advance and is supplied fixed block male hole, be convenient for imbed the fixed block into the ladder well lateral wall and be fixed in the ladder well with the bearing platform, recycle lifting device and remove the terraced body to the ladder well in, place on two adjacent bearing platforms, accomplish assembled building's primary manufacturing promptly.

In view of the above-mentioned related technologies, the inventor thinks that there is the defect that when the object carried on the ladder body is overweight, the supporting platform and the fixed blocks on both sides are easy to break under the action of external force, causing the stair to be damaged.

SUMMERY OF THE UTILITY MODEL

In order to strengthen the installation intensity of bearing platform in the ladder well, improve bearing platform's bearing capacity, this application provides a prefabricated staircase for assembly type structure.

The application provides a prefabricated stair for assembly type structure adopts following technical scheme:

the utility model provides an assembled prefabricated staircase for building, includes the ladder body and bearing platform, the ladder body includes the ladder top, at the bottom of the ladder and a plurality of step, the confession has been seted up on the bearing platform the first support groove of ladder top embedding, and supply the second support groove of ladder bottom embedding, the both sides on the bearing platform length direction all are connected with a plurality of fixed blocks, the bearing platform is kept away from one side of the ladder body is connected with the fixed strip, the one end that the ladder body was kept away from to the bearing platform bottom is lower than the one end that is close to the ladder body.

By adopting the technical scheme, a plurality of fixed blocks are connected on the two sides of the supporting platform in the length direction, the end of the bearing platform far away from the ladder body is connected with the fixing strip, so that the stress area between the lateral wall of the ladder well and the bearing platform is increased, the bearing capacity of the lateral wall of the ladder well to the bearing platform is enhanced, the contact area between one side of the bearing platform far away from the ladder body and the side wall of the ladder well is increased by setting the end of the bearing platform far away from the ladder body lower than the end close to the ladder body, namely, the pressure intensity between the ladder well and the bearing platform is reduced, so that the ladder body and the bearing platform can bear larger weight, by arranging a first supporting groove and a second supporting groove which are respectively used for mounting the ladder top and the ladder bottom of the ladder body on the supporting platform, the top surface of the ladder top after installation is flush with the corresponding top surface of the bearing platform, and the top surface of the ladder bottom is flush with the corresponding top surface of the bearing platform, so that the ladder body is convenient to fix on the two adjacent bearing platforms.

It is optional, it is a plurality of all bury underground a plurality of first hoist and mount portions in the step, first hoist and mount portion includes fixed plate and hoisting bolt, hoisting bolt is fixed in on the fixed plate, still be connected with the lag on the fixed plate, the lag outer wall with the step is hugged closely, be connected with second hoist and mount portion in the first hoist and mount portion, second hoist and mount portion includes thread bush and hoist and mount chain, the thread bush with hoisting bolt screw-thread fit, be connected with the hoist and mount circle on the thread bush, hoist and mount chain end-to-end connection has the couple, the hoist and mount circle with the couple articulates the cooperation.

Through adopting above-mentioned technical scheme, bury fixed plate and hoisting bolt underground in a plurality of steps, threaded connection thread bush on hoisting bolt, connect the hoist and mount circle on the thread bush, at hoist and mount chain end-to-end connection couple, articulate the cooperation with hoist and mount chain and thread bush through couple and hoist and mount circle, it lifts up and remove the ladder body to have made things convenient for the adjustment and the installation of the ladder body, through connecting the lag on the fixed plate, make concrete not contact with hoisting bolt's mould when the ladder body is poured, the drawing of patterns of the ladder body has been made things convenient for, and thread bush and hoisting bolt threaded connection or thread bush take off from hoisting bolt, the lag separates the concrete of thread bush and step, prevent to produce wearing and tearing between thread bush and the concrete, the harm to the thread bush has been reduced.

Optionally, the outer wall of the protecting sleeve is connected with a plurality of limiting plates.

Through adopting above-mentioned technical scheme, at a plurality of limiting plates of lag outer wall connection, the limiting plate is buried underground in the step, and when threaded sleeve and hoisting bolt threaded connection and when lifting the ladder body through the hoist and mount chain, there is the interaction force between the concrete of limiting plate and step, has strengthened the fixed strength of step to first hoist and mount portion, has reduced the probability that first hoist and mount portion and step break away from.

Optionally, an included angle between the top surface of the step and the side surface of the step in the length direction is an acute angle.

Through adopting above-mentioned technical scheme, establish the contained angle between step top surface and step length direction's side into the acute angle for under the prerequisite that step and ladder body length and height are unchangeable, increased the width of step, vamp and step contactable area when having increased people and walk on the ladder body, reduced the probability that people fell down because of stepping on empty or area of contact is little on the step, increased the security that people walked on the ladder body.

Optionally, the joint between the top surface of the step and the side surface of the step in the length direction is a smooth arc-shaped surface.

Through adopting above-mentioned technical scheme, establish the side handing-over department on step top surface and the step length direction into smooth arcwall face for the area of contact between human body and the step increases when people carelessly fall over on the step and collide with the step, has reduced the pressure that the department of colliding with received, has reduced the injury that people received when falling over, has improved the security of the ladder body.

Optionally, a plurality of anti-slip grooves are formed in the top surface of the step along the length direction of the step, and the inner walls of the anti-slip grooves are smooth arc-shaped surfaces.

Through adopting above-mentioned technical scheme, set up a plurality of anti-skidding grooves at the step top surface for the frictional force that people's vamp received when walking on the step increases, has reduced the probability that people slided on the step, establishes to glossy arcwall face through the inner wall with anti-skidding groove, makes when cleaner cleans the step along the length direction in anti-skidding groove, can sweep the filth in the anti-skidding groove fast, has made things convenient for cleaning of step.

Optionally, two ends of the anti-slip groove are not in contact with the side faces of the ladder body in the length direction, and two ends of the anti-slip groove are smooth spherical faces.

Through adopting above-mentioned technical scheme, establish into with the last side contactless of ladder length direction with anti-skidding groove both ends, and anti-skidding groove both ends are glossy spherical face, have reduced the clean dead angle on the step, have made things convenient for the cleanup crew to clean the filth in the anti-skidding inslot.

Optionally, a plurality of railing holes are formed in one end, close to the inside of the bearing platform, of the step top surface in the length direction.

Through adopting above-mentioned technical scheme, be close to the inside one end of bearing platform and set up the railing hole on step top surface length direction, set up the railing hole in the one end of keeping away from the ladder well lateral wall at the ladder body promptly, made things convenient for the ladder body to install in the ladder well after with railing embedding railing downthehole, it is fixed with the railing to fill in the concrete, and need not dig the railing hole once more on the ladder body, has made things convenient for the follow-up installation of railing.

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

1. the two sides of the bearing platform in the length direction are connected with a plurality of fixed blocks, one end of the bearing platform far away from the ladder body is connected with a fixed strip, the stress area between the lateral wall of the ladder well and the bearing platform is increased, the bearing capacity of the lateral wall of the ladder well to the bearing platform is enhanced, the contact area between one side of the bearing platform far away from the ladder body and the side wall of the ladder well is increased by setting the end of the bearing platform far away from the ladder body lower than the end close to the ladder body, namely, the pressure intensity between the ladder well and the bearing platform is reduced, so that the ladder body and the bearing platform can bear larger weight, by arranging a first supporting groove and a second supporting groove which are respectively used for mounting the ladder top and the ladder bottom of the ladder body on the supporting platform, the top surface of the mounted ladder top is flush with the top surface of the corresponding bearing platform, and the top surface of the ladder bottom is flush with the top surface of the corresponding bearing platform, so that the ladder body can be conveniently and fixedly mounted on the two adjacent bearing platforms;

2. the protective sleeve is connected to the fixed plate connected with the hoisting bolt, so that the mould of the hoisting bolt is separated from the concrete of the step, the separation between the step and the mould of the hoisting bolt is facilitated, the fixed strength between the hoisting bolt and the step is enhanced by connecting the plurality of limiting plates to the outer wall of the protective sleeve, and the probability of separation of the hoisting bolt from the step is reduced;

3. establish the contained angle between the side on through with step top surface and step length direction to the acute angle, the width of step has been increased, the area of contact between vamp and step when having increased people and walk on the step, through set up a plurality of antiskid groove at the step top surface along the length direction of step, the frictional force between vamp and step top surface when having increased people and walk on the step, stability when having improved people and walk on the step has been reduced, the probability that people fell down on the step, cross-over department between the side on through step top surface and step length direction establishes to smooth arcwall face, make people carelessly fall down on the step the area of contact between human and the step increase, the pressure that the human and step collided with the department and received reduces promptly, the injury that people received when falling down on the step has been reduced.

Drawings

Fig. 1 is a schematic structural view of a prefabricated staircase for prefabricated buildings according to an embodiment of the present application.

Fig. 2 is a sectional view of a prefabricated staircase for prefabricated construction according to an embodiment of the present application.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Description of reference numerals: 1. a ladder body; 11. a step; 111. an anti-slip groove; 112. a railing hole; 12. a ladder top; 121. a limiting hole; 13. a ladder bottom; 2. a supporting platform; 21. a fixed block; 22. a fixing strip; 23. a first support groove; 231. a limiting rod; 24. a second supporting groove; 3. a first hoisting part; 31. hoisting bolts; 32. a protective sleeve; 33. a fixing plate; 34. a limiting plate; 4. a second hoisting part; 41. a threaded sleeve; 411. hoisting a ring; 42. hoisting a chain; 421. and (4) hanging hooks.

Detailed Description

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

The embodiment of the application discloses prefabricated staircase for assembly type structure. Referring to fig. 1 and 2, an assembled prefabricated staircase for building, including bearing platform 2 and the ladder body 1, the ladder body 1 includes the

ladder top

12, 13 and a plurality of step 11 at the bottom of the ladder, set up the first support groove 23 that is used for installing ladder top 12 and the second support groove 24 that is used for installing ladder bottom 13 on the bearing platform 2, the homogeneous shaping of two sides on the bearing platform 2 length direction has a plurality of fixed blocks 21, integrated into one piece has fixed strip 22 on the side that the ladder body 1 was kept away from to bearing platform 2, imbed fixed strip 22 and a plurality of fixed block 21 in the hole that the ladder well lateral wall was reserved, adjust bearing platform 2's position, and to filling the concrete in the clearance between hole and fixed strip 22 and hole and fixed block 21, treat the concrete solidification back, accomplish bearing platform 2's installation promptly.

Referring to fig. 1 and 2, a plurality of position-limiting rods 231 are embedded in positions of the supporting platform 2 corresponding to the first supporting grooves 23, a plurality of position-limiting holes 121 are formed in positions of the ladder tops 12 corresponding to the position-limiting rods 231, the ladder tops 12 are embedded in the first supporting grooves 23 of the supporting platform 2 above the two adjacent supporting platforms 2, the position-limiting rods 231 are inserted into the position-limiting holes 121, the ladder bottoms 13 are embedded in the second supporting grooves 24 of the supporting platform 2 below the two adjacent supporting platforms 2, fillers such as concrete and polystyrene boards are filled in gaps between the ladder tops 12 and the first supporting grooves 23, fillers such as mortar and the like are filled between the position-limiting holes 121 and the position-limiting rods 231, fillers such as concrete and polystyrene boards are filled in gaps between the ladder bottoms 13 and the second supporting grooves 24, and the positions of the ladder bodies 1 are adjusted, so that the top surfaces of the ladder tops 12 are flush with the top surfaces of the corresponding supporting platforms 2, and the top surfaces of the supporting platforms 2, The top surface of the ladder bottom 13 is flush with the top surface of the corresponding bearing platform 2, and after the filler between the ladder body 1 and the two adjacent bearing platforms 2 is solidified and dried completely, the installation of the ladder body 1 on the two adjacent bearing platforms 2 is completed.

Referring to fig. 1, a railing hole 112 has all been seted up to the one end that a plurality of steps 11 top surfaces are close to bearing platform 2 center department, reserves railing hole 112 when prefabricating the ladder body 1, has made things convenient for after the ladder body 1 installation to put into railing hole 112 with the railing bottom to fill the concrete between railing bottom and railing hole 112, made things convenient for the installation of railing.

Referring to fig. 1 and 2, the included angle between the top surface of the step 11 and the side surface of the step 11 in the length direction is smaller than 90 degrees, so that under the condition that the length of the step 1, the height of the step 1 and the number of the steps 11 are not changed, the width of the step 11 is increased, the contact area between the vamp and the top surface of the step 11 when people walk on the step 11 is increased, and the probability that people step on the step 11 empty or fall down due to the fact that the contact area between the vamp and the top surface of the step 11 is too small is reduced. A plurality of anti-slip grooves 111 are uniformly formed in the top surface of the step 11 along the length direction of the step 11, so that the friction force between the vamp and the top surface of the step 11 when people walk on the step 11 is increased, and the slip probability of people due to the fact that the friction force between the vamp and the step 11 is too small is reduced. The connecting position of the top surface of the step 11 and the side surface of the step 11 in the length direction is a smooth arc-shaped surface, when people slip on the step 11 carelessly, the contact area between a human body and the sharp corner of the step 11 is increased, namely, the pressure between the human body and the sharp corner of the step 11 is reduced, and the injury caused when the human body collides with the step 11 is reduced.

Referring to fig. 1 and 2, the inner wall of the anti-slip groove 111 is a smooth arc-shaped surface, the two ends of the anti-slip groove 111 are not in contact with the two sides of the ladder body 1 in the width direction, and the two ends of the anti-slip groove 111 are spherical surfaces, so that a cleaner can sweep the other end of the anti-slip groove 111 along the length direction of the anti-slip groove 111 from one end of the anti-slip groove when cleaning the step 11, and can take away dirt, thereby reducing the cleaning dead angle on the step 11 and facilitating the cleaning of the ladder body 1.

Referring to fig. 3, all bury underground first hoist and mount portion 3 in a plurality of steps 11, first hoist and mount portion 3 includes integrated into one piece's lifting bolt 31, lag 32, fixed plate 33 and a plurality of limiting plate 34, fixed plate 33 is circular, fixed plate 33 is parallel with 11 top surfaces of steps, lifting bolt 31 is connected in fixed plate 33 top surface center, lag 32 is cylindricly, lag 32 is connected in fixed plate 33 top surface, and lag 32 center pin and fixed plate 33 centre of a circle lie in same straight line, concrete when lag 32 pours the ladder body 1 separates with lifting bolt 31's mould, the drawing of patterns between step 11 and lifting bolt 31 has been made things convenient for.

Referring to fig. 3, be connected with second hoist and mount portion 4 on the first hoist and mount portion 3, second hoist and mount portion 4 includes thread bush 41 and hoist and mount chain 42, and thread bush 41 and hoisting bolt 31 threaded connection, and the outer wall of thread bush 41 does not paste mutually with lag 32 inner wall, and the top surface of thread bush 41 is connected with hoisting ring 411, and hoist and mount chain 42 end-to-end connection has couple 421, and hoisting ring 411 articulates the cooperation with couple 421. With thread bush 41 and hoisting bolt 31 threaded connection, articulate hoisting ring 411 and couple 421, can utilize equipment such as hoist to hang and remove ladder body 1 through hoist and mount chain 42, made things convenient for to remove ladder body 1 to the ladder well to adjust the installation to ladder body 1.

Referring to fig. 3, a plurality of limiting plates 34 are the ring form, a plurality of limiting plates 34 are along the center pin connection of lag 32 in the lag 32 outer wall, when second hoist and mount portion 4 is connected with first hoist and mount portion 3 and lifts up the ladder body 1, produce relative effort between a plurality of limiting plates 34 and step 11, share the pulling force that the gravity of the ladder body 1 produced to first hoist and mount portion 3 to a plurality of limiting plates 34 on, the pulling force that fixed plate 33 received has been reduced, the probability that fixed plate 33 and lifting bolt 31 break away from in the step 11 because of the pulling force is too big has been reduced, the security when the ladder body 1 removed has been increased.

The implementation principle of prefabricated staircase for assembly type structure of the embodiment of this application is: in embedding the fixed block 21 and the hole that the shaft lateral wall was reserved respectively with the fixed block 21 and a plurality of fixed block 21 of 2 sides of bearing platform, the position of adjustment bearing platform 2 is to filling the concrete in the clearance between fixed block 21 and shaft lateral wall and between fixed strip 22 and shaft lateral wall, treat the concrete setting back, accomplish bearing platform 2's installation promptly and fix.

After two adjacent bearing platforms 2 are installed, the threaded sleeves 41 are in threaded connection with the hoisting bolts 31 in the ladder body 1, the hoisting rings 411 on the top surfaces of the threaded sleeves 41 are hooked with the hooks 421 connected with the tail ends of the hoisting chains 42, the lengths of the hoisting chains 42 are adjusted, the hoisting chains 42 are hoisted by a crane, the ladder body 1 can be moved into the ladder well, so that the ladder top 12 is embedded into the first support groove 23, the ladder bottom 13 is embedded into the second support groove 24, the position of the ladder body 1 is adjusted, filling corresponding filling materials are filled between the first supporting bracket 23 and the ladder top 12, between the second supporting bracket 24 and the ladder bottom 13, between the limiting hole 121 and the limiting rod 231, make 12 top surfaces of ladder top and the 2 top surfaces of corresponding bearing platform flush, 13 top surfaces of ladder bottom and the 2 top surfaces of corresponding bearing platform flush, treat that the stopping dries and solidifies the back, accomplish the installation of the ladder body 1 on two adjacent bearing platform 2 promptly and fix.

The matched bottom ends of the railings are inserted into the railing holes 112 reserved in each step 11, concrete is filled between the bottom ends of the railings and the railing holes 112, after the concrete is dried completely, the railings are installed completely, the protective sleeves 32 are filled with the concrete, redundant concrete in the anti-skid grooves 111 is scraped, the anti-skid grooves 111 are arranged to enable the inner walls of the anti-skid grooves 111 to be smooth, after the concrete is dried completely, the surfaces of the ladder bodies 1 are arranged completely, and the ladder bodies can be put into use.

And repeating the operation from the bottom of the shaft to the top of the shaft to finish the assembly of the assembled stair in one shaft.

The above is a preferred embodiment of the present application, and the scope of protection of the present application is not limited by the above, 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 an assembled prefabricated staircase for building, includes the ladder body (1) and bearing platform (2), the ladder body (1) is including the ladder top (12), at the bottom of the ladder (13) and a plurality of step (11), offer the confession on bearing platform (2) first support groove (23) of ladder top (12) embedding, and supply second support groove (24) of ladder bottom (13) embedding, the ascending both sides of bearing platform (2) length direction all are connected with a plurality of fixed blocks (21), its characterized in that: one side that bearing platform (2) kept away from the ladder body (1) is connected with fixed strip (22), the one end that the ladder body (1) was kept away from to bearing platform (2) bottom is lower than the one end that is close to the ladder body (1).

2. The prefabricated staircase for assembled buildings according to claim 1, characterized in that: a plurality of first hoisting parts (3) are buried in the step (11), the first hoisting parts (3) comprise fixing plates (33) and hoisting bolts (31), the hoisting bolts (31) are fixed on the fixing plates (33), the fixing plates (33) are further connected with protecting sleeves (32), the outer walls of the protecting sleeves (32) are tightly attached to the step (11), the first hoisting parts (3) are connected with second hoisting parts (4), the second hoisting parts (4) comprise thread sleeves (41) and hoisting chains (42), the thread sleeves (41) are in threaded fit with the hoisting bolts (31), hoisting rings (411) are connected to the thread sleeves (41), the tail ends of the hoisting chains (42) are connected with hooks (421), and the hoisting rings (411) are in hooked fit with the hooks (421).

3. The prefabricated staircase for assembled buildings according to claim 2, characterized in that: the outer wall of the protecting sleeve (32) is connected with a plurality of limiting plates (34).

4. The prefabricated staircase for assembled buildings according to claim 1, characterized in that: the included angle between the top surface of the step (11) and the side surface of the step (11) in the length direction is an acute angle.

5. The prefabricated staircase for assembled buildings according to claim 1, characterized in that: the joint of the top surface of the step (11) and the side surface of the step (11) in the length direction is a smooth arc-shaped surface.

6. The prefabricated staircase for assembled buildings according to claim 1, characterized in that: a plurality of anti-slip grooves (111) are formed in the top surface of the step (11) along the length direction of the step (11), and the inner walls of the anti-slip grooves (111) are smooth arc-shaped surfaces.

7. The prefabricated staircase for assembled buildings according to claim 6, wherein: the two ends of the anti-skid groove (111) are not in contact with the side faces of the ladder body (1) in the length direction, and the two ends of the anti-skid groove (111) are smooth spherical faces.

8. The prefabricated staircase for assembled buildings according to claim 1, characterized in that: a plurality of railing holes (112) are formed in one end, close to the inside of the bearing platform (2), of the top surface of the step (11) in the length direction.