CN212248952U

CN212248952U - Light prefabricated hollow stair

Info

Publication number: CN212248952U
Application number: CN202020758646.7U
Authority: CN
Inventors: 戚思超; 柳锁进; 王杉
Original assignee: Changzhou Tongzhu Building Technology Co ltd
Current assignee: Changzhou Tongzhu Building Technology Co ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2020-12-29
Anticipated expiration: 2030-05-11

Abstract

The utility model relates to a light prefabricated hollow stair, which is provided with a stair body, wherein a reinforcement cage which is integrally formed with the stair body is arranged in the stair body, and the stair body is provided with a through hole for an external reinforcement to pass through; be equipped with the hoist and mount subassembly that is used for stair body hoist and mount in the through-hole, hoist and mount subassembly includes hoisting sleeve, a plurality of hoisting rods and the detachable lifting hook of fixing on each hoisting rod that distribute on hoisting sleeve inner wall along hoisting sleeve's axis circumference, be equipped with a plurality of lifting grooves on hoisting sleeve's the inner wall, be equipped with a plurality of elevator blocks on each hoisting rod, be equipped with the spacing groove on two lateral walls of lifting groove, and the crisscross distribution of spacing groove on two lateral walls of lifting groove, the both sides of elevator block are equipped with limit slide, buffer spring is all fixed to be equipped with in each limit slide's upper end, buffer spring's the fixed setting of one end is on limit slide, buffer spring's the other end and. The utility model discloses the structure is ingenious, and practical high-efficient.

Description

Light prefabricated hollow stair

Technical Field

The utility model relates to a light-duty prefabricated hollow stair.

Background

The system building mode is inefficient, the pollution is large, along with the development of modern industrial technology, the building can be made into a whole set like a machine sound field, the prefabricated building components are formed after being assembled with the building through hoisting after being carried on a construction site, but the existing prefabricated stairway is generally formed through pouring of a steel bar framework and concrete, and then is connected with the prefabricated steel bars through the preformed holes on the stairway and then is integrally formed after being poured for the second time, but because the prefabricated stairway is too heavy, when the prefabricated stairway is hoisted through an external hoisting piece and a binding band, the contact part of the binding band and the stairway can be worn and torn due to uneven stress, the whole stairway also has the potential safety hazard of uneven stress fracture, and the stairway is very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a structure is ingenious, and practical convenient prefabricated hollow stair.

Realize the utility model discloses the technical scheme of purpose is: the utility model has a stair body, a reinforcement cage integrated with the stair body is arranged in the stair body, and a through hole for external reinforcement to pass through is arranged on the stair body; the through hole is internally provided with a hoisting component for hoisting the stair body, the hoisting component comprises a hoisting sleeve fixedly connected with the steel reinforcement framework and fixed on the inner wall of the through hole, a plurality of hoisting rods distributed on the inner wall of the hoisting sleeve along the circumference of the axis of the hoisting sleeve, and lifting hooks detachably fixed on each hoisting rod, a plurality of lifting grooves corresponding to the lifting rods are arranged on the inner wall of the lifting sleeve, a plurality of lifting blocks corresponding to the lifting grooves are arranged on each lifting rod, limiting grooves are arranged on two side walls of each lifting groove, and the limiting grooves on the two side walls of the lifting groove are distributed in a staggered manner, the two sides of the lifting block are provided with limiting slide blocks which are arranged in the corresponding limiting grooves in a sliding manner, the upper end of each limiting slide block is fixedly provided with a buffer spring, one end of each buffer spring is fixedly arranged on the limiting slide block, and the other end of each buffer spring is fixedly connected with the upper end face of the lifting groove.

And a plurality of pressing teeth are distributed on the end surface of each hoisting rod far away from the hoisting sleeve along the axial direction of the hoisting sleeve.

The lower extreme that lies in the lift groove on above-mentioned hoist and mount telescopic inner wall distributes along hoist and mount telescopic axis circumference array has a plurality of location circle poles, and the axis of each location circle pole is perpendicular with hoist and mount telescopic axis, and the cover is equipped with the compression bar on each location circle pole, is equipped with the flexible groove that can supply the location circle pole to pass in the compression bar, and the bottom in flexible groove is equipped with compression spring, compression spring's both ends respectively with the bottom in flexible groove and location circle pole fixed connection, the one end of compression bar is equipped with the briquetting that leans on that is used for compressing tightly outside reinforcing bar.

The pressing block is provided with an arc surface which is coaxial with the hoisting sleeve, and the arc surface is provided with a pressing tooth for pressing an external steel bar.

The lower end of the hoisting sleeve is provided with an obliquely outward folded edge, and the folded edge is provided with a plurality of convex blocks.

The utility model discloses has positive effect: (1) the utility model discloses a set up hoisting assembly in the through-hole and set up hoisting sleeve and go up and down to set up the hoist and mount pole on the hoist and mount tower section of thick bamboo and the fixed lifting hook that sets up on hoisting rod carries out the hoist and mount of stair body to alleviate the pulling force that outside hoisting mechanism produced when hoist and mount telescopic inner wall brought through the buffering of buffer spring of spacing inslot, when fine protection hoist and mount the sleeve, pass the pulling force to steel reinforcement framework on, the effectual uneven problem of atress of tying up the stair body and bringing through the bandage of having avoided among the prior art, the security of stair body has also been guaranteed when carrying out hoist and mount, high efficiency and practicality.

(2) The utility model discloses a set up a plurality of pressing teeth that lean on the hoist and mount pole, through the buffering of the last buffer spring of hoist and mount pole and by pressing the effectual external reinforcement of having guaranteed of pressing of leaning on of tooth and hoisting telescopic connection, safe practical.

(3) The utility model discloses a set up a plurality of location pole and will lean on the briquetting to press on the outside reinforcing bar through the cooperation of flexible groove in the location pole, inferior cable spring and location pole on hoist and mount are transferred to lead to, have further strengthened the connection of hoist and mount sleeve and outside reinforcing bar to form a whole, high-efficient practical with the stair body after the secondary is pour.

(4) The utility model discloses a set up the arcwall face by on the briquetting, set up on the arcwall face and lean on the tooth, through leaning on the pressure to strengthen being connected with the outside reinforcing bar after contacting with the outside reinforcing bar by the tooth, it is practical high-efficient.

(5) The utility model discloses a lower extreme with hoisting sleeve sets up the hem to set up the lug on the hem, the effectual stability of strengthening hoisting sleeve and this body coupling of stair, the security that also can effectual assurance hoist and mount simultaneously, practical high-efficient.

Drawings

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is given in conjunction with the accompanying drawings, in which

FIG. 1 is a cross-sectional view of the whole structure of the middle and light prefabricated hollow staircase;

fig. 2 is a cross-sectional view of the overall structure of the hoisting assembly of the present invention;

fig. 3 is the overall structure schematic diagram of the connection of the middle hoisting rod and the hoisting hook.

Detailed Description

Referring to fig. 1 to 3, the utility model has a stair body 1, a reinforcement cage 2 integrally formed with the stair body 1 is arranged in the stair body 1, and a through hole 3 for an external reinforcement to pass through is arranged on the stair body 1; the inner wall of the through hole 3 is provided with a hoisting component 4 for hoisting the stair body 1, the hoisting component 4 comprises a hoisting sleeve 41 fixedly connected with the steel reinforcement framework 2 and then fixed on the inner wall of the through hole 3, a plurality of hoisting rods 42 distributed on the inner wall of the hoisting sleeve 41 along the circumference of the axis of the hoisting sleeve 41, and lifting hooks 43 detachably fixed on the hoisting rods 42, the hoisting rods 42 are flush with the steps of the stair body 1 when not hoisted, the upper end surface of the hoisting rods 42 is provided with threaded holes, the lifting hooks 43 are provided with bolts, the lifting hooks 43 are fixed on the hoisting rods 42 through the threaded connection of the bolts and the threaded holes, the inner wall of the hoisting sleeve 41 is provided with a plurality of lifting grooves 411 corresponding to the hoisting rods 42, each hoisting rod 42 is provided with a plurality of lifting blocks 45 corresponding to each lifting groove 411, two side walls of the lifting grooves 411 are provided with limit, the limiting grooves 412 on the two side walls of the lifting groove 411 are distributed in a staggered manner, the two sides of the lifting block 45 are provided with limiting sliding blocks 421 which can be slidably arranged in the corresponding limiting grooves 412, the upper end of each limiting sliding block 421 is fixedly provided with a buffer spring 413, one end of each buffer spring 413 is fixedly arranged on the limiting sliding block 421, and the other end of each buffer spring 413 is fixedly connected with the upper end face of the lifting groove 411; after being distributed circumferentially, each hoisting rod 42 forms a through hole through which an external steel bar can pass, and a plurality of pressing teeth 422 are distributed on the end surface of each hoisting rod 42 away from the hoisting sleeve 41 along the axial direction of the hoisting sleeve 41; a plurality of positioning round rods 414 are distributed on the inner wall of the hoisting sleeve 41 at the lower end of the lifting slot 411 along the axis circumference array of the hoisting sleeve 41, the axis of each positioning round rod 414 is perpendicular to the axis of the hoisting sleeve 41, a pressing rod 415 is sleeved on each positioning round rod 414, a telescopic slot 418 through which the positioning round rod 414 can pass is arranged in each pressing rod 415, a compression spring 416 is arranged at the bottom of the telescopic slot 418, two ends of the compression spring 416 are respectively fixedly connected with the bottom of the telescopic slot 418 and the positioning round rods 414, and a pressing block 417 for pressing an external steel bar is arranged at one end of each pressing rod 415; the pressing block 417 is provided with an arc surface coaxial with the hoisting sleeve 41, and the arc surface is provided with a pressing tooth 419 for pressing an external steel bar; the lower end of the hoisting sleeve 41 is provided with an obliquely outward folded edge 44, and the folded edge 44 is provided with a plurality of convex blocks 441.

The utility model discloses a theory of operation: the utility model discloses when hoist and mount, outside hoisting machine constructs and is connected with lifting hook 43 and when carrying out the application of force, hoisting rod 42 rises and drives the spacing slider 421 of spacing inslot 412 and slide, and then drives the compression of slip spring, cushion the power that hoisting rod 42 received, then the pulling force that will receive passes to steel framework 2, through on hoisting rod 42 press tooth 422 and location pole 414 on leaning on the tooth 419 compress tightly the back location with outside reinforcing bar when hoist to be connected with outside reinforcing bar, high-efficient practical.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A light prefabricated hollow stair is provided with a stair body (1), a reinforcement cage (2) which is integrally formed with the stair body (1) is arranged in the stair body (1), and a through hole (3) through which an external reinforcement can pass is formed in the stair body (1); the method is characterized in that: the stair body lifting device is characterized in that a lifting assembly (4) used for lifting the stair body (1) is arranged in the through hole (3), the lifting assembly (4) comprises a lifting sleeve (41) fixedly connected with the steel reinforcement framework (2) and then fixed on the inner wall of the through hole (3), a plurality of lifting rods (42) distributed on the inner wall of the lifting sleeve (41) along the axis circumference of the lifting sleeve (41), and lifting hooks (43) detachably fixed on the lifting rods (42), a plurality of lifting grooves (411) corresponding to the lifting rods (42) are arranged on the inner wall of the lifting sleeve (41), a plurality of lifting blocks (45) corresponding to the lifting grooves (411) are arranged on the lifting rods (42), limit grooves (412) are arranged on two side walls of each lifting groove (411), the limit grooves (412) on two side walls of each lifting groove (411) are distributed in a staggered manner, limit sliders (421) capable of being arranged in the corresponding limit grooves (412) in a sliding manner are arranged on two sides of each lifting block (45, the upper end of each limit slide block (421) is fixedly provided with a buffer spring (413), one end of each buffer spring (413) is fixedly arranged on the limit slide block (421), and the other end of each buffer spring (413) is fixedly connected with the upper end face of the lifting groove (411).

2. A lightweight prefabricated hollow staircase according to claim 1, characterized in that: after being distributed on the circumference, each hoisting rod (42) forms a through hole for an external steel bar to pass through, and a plurality of pressing teeth (422) are distributed on the end surface of each hoisting rod (42) far away from the hoisting sleeve (41) along the axial direction of the hoisting sleeve (41).

3. A lightweight prefabricated hollow staircase according to claim 1, characterized in that: the utility model discloses a steel wire rope hoist and mount steel wire.

4. A lightweight prefabricated hollow staircase according to claim 3, characterized in that: the pressing block (417) is provided with an arc surface which is coaxial with the hoisting sleeve (41), and the arc surface is provided with a pressing tooth (419) for pressing an external steel bar.

5. A lightweight prefabricated hollow staircase according to claim 1, characterized in that: the lower end of the hoisting sleeve (41) is provided with an obliquely outward folded edge (44), and the folded edge (44) is provided with a plurality of convex blocks (441).