CN220814620U

CN220814620U - Precast concrete stair

Info

Publication number: CN220814620U
Application number: CN202322650990.0U
Authority: CN
Inventors: 刘文斌; 王健; 王晶
Original assignee: Zhongxin Tianjin Assembly Construction Co ltd
Current assignee: Zhongxin Tianjin Assembly Construction Co ltd
Priority date: 2023-09-27
Filing date: 2023-09-27
Publication date: 2024-04-19
Anticipated expiration: 2033-09-27

Abstract

The utility model discloses a precast concrete stair, and relates to the technical field of building components. This precast concrete stair includes: the first backup pad, one side of first backup pad is provided with the second backup pad, the top of first backup pad and second backup pad all is provided with prefabricated staircase board, first backup pad, second backup pad and prefabricated staircase board are the prefabricated building material of concrete, the inside of prefabricated staircase board has pre-buried first fixed steel pole and the fixed steel pole of second respectively, fixedly connected with connecting rod between first fixed steel pole and the fixed steel pole of second. Through setting up first backup pad, second backup pad and prefabricated stair board and prefabricating respectively and installing, make the three comparatively save trouble laborsaving in the transportation with during the installation, avoided appearing damaging the condition that leads to damaging in installation and transportation at integral precast concrete stair.

Description

Precast concrete stair

Technical Field

The utility model relates to the technical field of building components, in particular to a precast concrete stair.

Background

In the existing traditional building construction process, most of the construction of the stairs adopts a cast-in-situ structure, the on-site formwork of the traditional cast-in-situ stair structure is difficult, the quality of construction joints is not easy to control, the labor and the wood consumption are large, along with the continuous innovation and development of the building industry, the market labor price is continuously increased, the building cost is increased, the building industry is inevitably developed gradually towards the industrialization and factory direction, along with the gradual maturity and perfection of the assembled building technology, the assembled mode is increasingly used in the building industry, and the prefabricated stairs are used as an undesirable part of the assembled structure and are inevitably popularized and applied on a large scale.

At present, the existing precast concrete stair is mostly integrated, is inconvenient when being transported and installed, and the problem that the whole stair cannot be used easily caused if damage, cracking and the like occur in the process of transporting and installing the integrated concrete stair, so that the existing precast concrete stair has the use limitation.

Disclosure of utility model

(One) solving the technical problems

Aiming at the defects of the prior art, the utility model provides the precast concrete stair, and solves the problem that the existing precast concrete stair is inconvenient to transport and install due to the fact that the individual size of the existing precast concrete stair is too large.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

the utility model provides a precast concrete stairway, comprising:

The first backup pad, one side of first backup pad is provided with the second backup pad, the top of first backup pad and second backup pad all is provided with prefabricated staircase board, first backup pad, second backup pad and prefabricated staircase board are the prefabricated building material of concrete, the inside of prefabricated staircase board is pre-buried respectively has first fixed steel pole and second fixed steel pole, fixedly connected with connecting rod between first fixed steel pole and the second fixed steel pole, the equal fixedly connected with spliced pole in both ends of first fixed steel pole and second fixed steel pole, the spliced pole and the fixed slot of prefabricated staircase board bottom both sides are mutually supported and are installed.

Preferably, the outer side of the second fixed steel rod is fixedly connected with an L-shaped rod, and one end of the L-shaped rod, which is far away from the second fixed steel rod, is fixedly connected with a third fixed rod.

Preferably, the fixed diagonal rods are embedded in the first support plate and the second support plate, and the top of the fixed diagonal rods is fixedly connected with the vertical rods.

Preferably, both ends of the fixed diagonal rod are respectively fixedly connected with a bottom rod and a top rod, and the bottom rod and the top rod are both embedded in the first supporting plate and the second supporting plate.

Preferably, the top and the bottom of second backup pad lateral surface are provided with first fixed column and second fixed column respectively, the outside of first fixed column and the top fixed connection of sill bar, the one end and the ejector pin fixed connection of second fixed column, second backup pad lateral surface fixedly connected with diagonal bar.

Preferably, the tops of the prefabricated staircase boards are provided with skid-proof blocks, and the number of the skid-proof blocks at the tops of the prefabricated staircase boards is two.

(III) beneficial effects

Compared with the prior art, the utility model provides the precast concrete stair which at least has the following beneficial effects:

(1) This precast concrete stair is prefabricated respectively and is installed through setting up first backup pad, second backup pad and prefabricated stair board, makes the three comparatively save trouble laborsaving in the time of transportation and installation, has avoided appearing damaging the condition that leads to damaging in installation and transportation at integral precast concrete stair.

(2) This precast concrete stair, the bottom of precast stair board is provided with the plug pole, and the plug pole can install each other with the fixed slot, makes the installation that precast stair board can be convenient in first backup pad and second backup pad top, has improved convenience and the flexibility of installation.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of the Wishing you all the best stair nosing according to the present utility model;

FIG. 3 is a schematic view of a first support plate, a second support plate and a prefabricated staircase structure according to the present utility model;

Fig. 4 is a cross-sectional view of a first support plate and a second support plate of the present utility model.

In the figure: 1. a first support plate; 2. a second support plate; 3. prefabricating stair boards; 4. a first fixed steel rod; 5. a second fixed steel rod; 6. inserting a connecting rod; 7. a connecting rod; 8. an L-shaped rod; 9. a third fixing rod; 10. a fixing groove; 11. a diagonal rod; 12. fixing the inclined rod; 13. a vertical rod; 14. a bottom bar; 15. a first fixing column; 16. a push rod; 17. a second fixing column; 18. and the anti-skid convex blocks.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: precast concrete stairway comprising:

The first support plate 1, one side of the first support plate 1 is provided with a second support plate 2, the tops of the first support plate 1 and the second support plate 2 are respectively provided with a prefabricated stair plate 3, the first support plate 1, the second support plate 2 and the prefabricated stair plates 3 are made of concrete prefabricated building materials, a first fixed steel rod 4 and a second fixed steel rod 5 are respectively embedded in the prefabricated stair plates 3, a connecting rod 7 is fixedly connected between the first fixed steel rod 4 and the second fixed steel rod 5, two ends of the first fixed steel rod 4 and two ends of the second fixed steel rod 5 are fixedly connected with inserting rods 6, and the inserting rods 6 on two sides of the bottom of the prefabricated stair plates 3 are installed in a matched mode with the fixing grooves 10; during installation, the second support plate 2 can be attached to one side of the wall body firstly, then the top ends and the bottom ends of the first support plate 1 and the second support plate 2 are respectively installed on the upper and lower layers of the platform, the inserting rod 6 at the bottom of the prefabricated staircase plate 3 is inserted into the fixing groove 10 at the top of the first support plate 1 and the second support plate 2, the prefabricated staircase plate 3 is fixedly installed with the first support plate 1 and the second support plate 2, the top of the inserting rod 6 is respectively connected with the first fixed steel rod 4 and the second fixed steel rod 5, the first fixed steel rod 4 and the second fixed steel rod 5 are connected by the connecting rod 7, and concrete is filled in the prefabricated staircase plate 3 through the first fixed steel rod 4, the second fixed steel rod 5 and the connecting rod 7.

As shown in fig. 1 to 4, the embodiment of the present utility model provides an implementation manner, based on the above implementation manner, the outer side of the second fixed steel rod 5 is fixedly connected with an L-shaped rod 8, and one end of the L-shaped rod 8, which is far away from the second fixed steel rod 5, is fixedly connected with a third fixed rod 9. According to the analysis of the structure, two ends of the L-shaped rod 8 are respectively connected with the second fixed steel rod 5 and the third fixed rod 9, the L-shaped rod 8, the second fixed steel rod 5 and the third fixed rod 9 are poured into the prefabricated staircase plate 3 through concrete, and dense rigid materials are pre-buried in the prefabricated staircase plate 3, so that the long-term service life of the prefabricated staircase plate 3 is prolonged.

As shown in fig. 1 to 4, the embodiment of the present utility model provides an implementation manner, based on the above implementation manner, the inside of each of the first support plate 1 and the second support plate 2 is embedded with a fixed diagonal rod 12, and the top of the fixed diagonal rod 12 is fixedly connected with a vertical rod 13. According to the analysis of the structure, the fixed inclined rod 12 is embedded in the first support plate 1 and the second support plate 2, and the upright rod 13 is connected with the fixed inclined rod 12 and poured into the first support plate 1 and the second support plate 2 by concrete, so that the stability of the first support plate 1 and the second support plate 2 during installation is improved.

As shown in fig. 1 to 4, the embodiment of the present utility model provides an implementation manner, based on the above implementation manner, two ends of the fixed diagonal rod 12 are fixedly connected with the bottom rod 14 and the top rod 16 respectively, and the bottom rod 14 and the top rod 16 are embedded in the first support plate 1 and the second support plate 2. As can be seen from an analysis of the above structure, the bottom rod 14 and the top rod 16 are respectively connected with two ends of the fixed diagonal rod 12, and the top rod 16, the bottom rod 14 and the fixed diagonal rod 12 are all embedded in the first support plate 1 and the second support plate 2 and poured by concrete.

As shown in fig. 1-4, an embodiment of the present utility model provides an implementation manner, based on the above implementation manner, a first fixing column 15 and a second fixing column 17 are respectively disposed at the top and the bottom of the outer side surface of the second supporting plate 2, the outer side of the first fixing column 15 is fixedly connected with the top of the bottom rod 14, one end of the second fixing column 17 is fixedly connected with the top rod 16, and the outer side surface of the second supporting plate 2 is fixedly connected with the inclined rod 11. As can be seen from an analysis of the above structure, the bottom rod 14 is connected to the first fixing column 15, the top rod 16 is connected to the second fixing column 17, and one side of the first fixing column 15 and the second fixing column 17, which is close to the second supporting plate 2, is poured into concrete, and a part of the exposed part is inserted into a wall body for fixing.

As shown in fig. 1-4, the embodiment of the utility model provides an implementation, based on which the top of the prefabricated staircase board 3 is provided with cleats 18, the number of cleats 18 at the top of the prefabricated staircase board 3 being two. By analyzing the structure, the anti-skid lugs 18 are arranged at the top of the prefabricated stair plates 3, and the anti-skid lugs 18 are also prefabricated concrete parts, so that the anti-skid force in use is increased.

When the stair climbing device is used, the first support plate 1 and the second support plate 2 are placed in the middle of the stair platform by using the crane, the position of the second support plate 2 is adjusted, the inclined rod 11, the first fixing column 15 and the second fixing column 17 on one side of the second support plate 2 are installed in a wall body, then the distance between the first support plate 1 and the second support plate 2 is adjusted, the precast stair plate 3 is placed between the first support plate 1 and the second support plate 2, the inserting rod 6 at the bottom of the precast stair plate 3 is correspondingly installed in the fixing groove 10, and then the concrete is used for sealing the first support plate 1, the second support plate 2 and the precast stair plate 3, so that the installation and connection stability of the first support plate 1, the second support plate 2 and the precast stair plate 3 is improved.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Precast concrete stair, its characterized in that includes:

The utility model provides a first backup pad (1), one side of first backup pad (1) is provided with second backup pad (2), the top of first backup pad (1) and second backup pad (2) all is provided with prefabricated staircase board (3), first backup pad (1), second backup pad (2) and prefabricated staircase board (3) are concrete prefabricated building material, the inside of prefabricated staircase board (3) has pre-buried first fixed steel pole (4) and second fixed steel pole (5) respectively, fixedly connected with connecting rod (7) between first fixed steel pole (4) and second fixed steel pole (5), the equal fixedly connected with peg graft pole (6) in both ends of first fixed steel pole (4) and second fixed steel pole (5), peg graft pole (6) and fixed slot (10) of prefabricated staircase board (3) bottom both sides are installed in mutually supporting.

2. The precast concrete stairway according to claim 1, wherein: the outside fixedly connected with L shape pole (8) of second fixed steel pole (5), the one end fixedly connected with third dead lever (9) that second fixed steel pole (5) were kept away from to L shape pole (8).

3. The precast concrete stairway according to claim 1, wherein: the novel lifting device is characterized in that fixed inclined rods (12) are embedded in the first supporting plate (1) and the second supporting plate (2), and vertical rods (13) are fixedly connected to the tops of the fixed inclined rods (12).

4. A precast concrete stairway according to claim 3, characterised in that: both ends of fixed diagonal bar (12) are fixedly connected with sill bar (14) and ejector pin (16) respectively, sill bar (14) and ejector pin (16) are all pre-buried in the inside of first backup pad (1) and second backup pad (2).

5. The precast concrete stairway according to claim 4, wherein: the top and the bottom of second backup pad (2) lateral surface are provided with first fixed column (15) and second fixed column (17) respectively, the outside of first fixed column (15) and the top fixed connection of sill bar (14), the one end and ejector pin (16) fixed connection of second fixed column (17), second backup pad (2) lateral surface fixedly connected with diagonal bar (11).

6. The precast concrete stairway according to claim 1, wherein: the top of prefabricated stair board (3) is provided with skid-proof blocks (18), the quantity of prefabricated stair board (3) top skid-proof blocks (18) is set up to two.