CN215631160U

CN215631160U - Alkali return prevention stair

Info

Publication number: CN215631160U
Application number: CN202122146675.5U
Authority: CN
Inventors: 朱勇勇; 朱莉莉; 李伟刚; 贺明华
Original assignee: Zhejiang Huazhong Construction Engineering Co ltd
Current assignee: Zhejiang Huazhong Construction Engineering Co ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-01-25
Anticipated expiration: 2031-09-07

Abstract

The utility model discloses an alkali return prevention stair which comprises a main body, wherein the main body is composed of a plurality of steps, a first diversion trench is arranged on each of two sides of the upper portion of each step, a second diversion trench communicated with the first diversion trench is arranged on each of two vertical surfaces of each step, each step is composed of a cement rendering coat, a concrete layer and a mortar layer, the concrete layer abuts against the upper portion of the mortar layer, the cement rendering coat is wrapped on the outer sides of the concrete layer and the mortar layer, a plurality of first drainage pipes communicated with the upper surface and the lower surface of the concrete layer are arranged inside the concrete layer, the mortar layer is transversely provided with a water outlet pipe, the first drainage pipes are connected with the water outlet pipes, a drainage pipe which inclines downwards is arranged on the side surface of the main body, and the water outlet pipes are connected with the drainage pipes. The drainage structure of the stairs is arranged, so that the problem of alkali return of the stairs is effectively solved, and the drainage structure is simple and reasonable in structure, convenient to manufacture and good in practicability.

Description

Alkali return prevention stair

Technical Field

The utility model relates to the technical field of buildings, in particular to an alkali return prevention stair.

Background

When the stairs built outdoors are exposed to the sun and rain, the surface of the ground is whitened, white crystals appear, namely, the phenomenon of alkali return appears, and the appearance of the surface of the stairs and the normal use of the stairs are affected, so that the improvement is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide the alkali return prevention stair, the problem of alkali return of the stair is effectively solved by arranging the drainage structure of the stair, and the stair is simple and reasonable in structure, convenient to manufacture and good in practicability.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the anti-alkali-return stair comprises a main body, wherein the main body is composed of a plurality of steps, a first diversion trench is arranged on two sides of the upper portion of each step, a second diversion trench communicated with the first diversion trench is arranged on two sides of the vertical face of each step, each step is composed of a cement rendering coat, a concrete layer and a mortar layer, the concrete layer abuts against the upper portion of the mortar layer, the cement rendering coat is wrapped on the outer sides of the concrete layer and the mortar layer, a plurality of first drainage pipes communicated with the upper surface and the lower surface of the concrete layer are arranged inside the concrete layer, a plurality of through holes are formed in one side face of each drainage pipe, a water outlet pipe is transversely arranged on the mortar layer and is connected with the water outlet pipe, a drainage pipe which is inclined downwards is arranged on the side face of the main body, and the water outlet pipe is connected with the drainage pipe.

And a second sewer pipe is arranged at the bottom of the first diversion trench, sequentially penetrates through the cement plastering layer and the concrete layer, and is connected with the water outlet pipe.

The two sides of the upper part of the step extend upwards to form bulges, the bulges are positioned above the first diversion trench, and diversion ports are formed in the opposite sides of the two bulges and are communicated with the first diversion trench.

The protrusion extends obliquely downward toward one side of the middle of the step.

The middle of the upper part of the step is arranged downwards towards two sides in an inclined mode.

The utility model has the beneficial effects that: the arrangement of the first sewer pipe, the through hole, the water outlet pipe and the water discharge pipe enables the alkaline hydroxide to flow into the water outlet pipe through the first sewer pipe and the through hole and to be discharged from the water discharge pipe, and the quantity of the alkaline hydroxide flowing out of the step from the inside to the surface through water evaporation rising is reduced, so that the alkali-back-preventing function is realized, the attractiveness of the alkali-back-preventing device is improved, the structure is simple and reasonable, and the practicability is good.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a step;

FIG. 3 is an enlarged view of FIG. 2 at A;

fig. 4 is an enlarged view of fig. 2 at B.

In the figure: the concrete floating floor comprises a main body 1, steps 2, a cement plastering layer 3, a first diversion trench 31, a second diversion trench 32, a protrusion 33, a diversion port 34, an inclined plane 35, a concrete layer 4, a first sewer pipe 41, a through hole 42, a mortar layer 5, a water outlet pipe 51, a second sewer pipe 6 and a water outlet pipe 7.

Detailed Description

The utility model is further described with reference to the accompanying drawings and the detailed description below:

in the description of the present specification, the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or unit must have a specific direction, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 4, the stair for preventing alkali from returning comprises a main body 1, wherein the main body 1 is composed of a plurality of steps 2, each step 2 is composed of a cement rendering layer 3, a concrete layer 4 and a mortar layer 5, the concrete layer 4 abuts against the upper portion of the mortar layer 5, the cement rendering layer 3 is wrapped on the outer sides of the concrete layer 4 and the mortar layer 5, a plurality of first downcomers 41 communicated with the upper surface and the lower surface of the concrete layer 4 are arranged inside the concrete layer 4, a plurality of through holes 42 are formed in the side surface of the first downcomers 41, the through holes 42 are communicated with the inside of the concrete layer 4 and the first downcomers 41, a water outlet pipe 51 is transversely arranged on the mortar layer 5, the first downcomers 41 are connected with a water outlet pipe 51, a downward inclined water outlet pipe 7 is arranged on the side surface of the main body 1, the water outlet pipe 51 is connected with the water outlet pipe 7, silicate ions inside the cement contain silicate when the main body 1 undergoes hydrolysis reaction, the generated hydroxide ions are combined with metal ions in concrete or the outside to generate alkaline hydroxides with low solubility, when the outside rains, rainwater permeates into the step 2, the alkaline hydroxides in the cement rendering coat layer 3 and the concrete layer 4 flow into the water outlet pipe 51 through the first sewer pipe 41 and the through hole 42 and are discharged through the water outlet pipe 7, and through the design, the number of the alkaline hydroxides which rise through water evaporation and flow out from the inside of the step 2 to the surface is reduced, so that the alkali-back-preventing function is realized, the attractiveness of the utility model is improved, the structure is simple and reasonable, and the practicability is good.

The two sides of the upper part of the step 2 are provided with the first diversion grooves 31, the two sides of the vertical surface of the step 2 are provided with the second diversion grooves 32 communicated with the first diversion grooves 31, the middle of the upper part of the step 2 is inclined downwards towards the two sides, through the arrangement, when raining, rainwater flows into the first diversion grooves 31 along the inclined plane of the stair surface and flows to the ground through the first diversion grooves 31 and the second diversion grooves 32, through the design, the surface water accumulation of the step 2 is effectively prevented, and the alkaline hydroxide on the surface of the step 2 can be flushed into the second diversion grooves 32 communicated with the first diversion grooves 31 to a certain extent, so that the drainage effect of the utility model is improved.

Preferably, the bottom of the first diversion trench 31 is provided with a second downcomer 6, the second downcomer 6 sequentially penetrates through the cement rendering coat 3 and the concrete layer 4 and is connected with the water outlet pipe 51, when water on the surface of the step 2 flows into the first diversion trench 31, the water is discharged into the water outlet pipe 51 through the second downcomer 6, the first diversion trench 31 is prevented from being filled when the amount of rainwater is large, and the drainage effect of the utility model is greatly improved.

Preferably, the two sides of the upper part of the step 2 extend upwards to form protrusions 33, the protrusions 33 are located above the first diversion trench 31, diversion ports 34 are formed in one side, opposite to the two protrusions 33, of each of the two protrusions 34, the diversion ports 34 are communicated with the first diversion trench 31, hidden drainage can be achieved through the arrangement of the protrusions 33 and the diversion ports 34, the risk that the second sewer pipe 6 and the first diversion trench 31 are blocked can be reduced, the attractiveness of the step can be improved, and the step is more exquisite.

Preferably, the protrusion 33 extends downwards and slantingly towards the side of the middle of the step 2, so that water on the protrusion 33 can be discharged into the diversion trench one 31 through the diversion port 34.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. An alkali return prevention stair is characterized in that: the concrete water-saving device comprises a main body (1), wherein the main body (1) is composed of a plurality of steps (2), a first diversion trench (31) is arranged on two sides of the upper portion of each step (2), a second diversion trench (32) communicated with the first diversion trench (31) is arranged on two sides of the vertical surface of each step (2), each step (2) is composed of a cement rendering layer (3), a concrete layer (4) and a mortar layer (5), the concrete layer (4) is abutted against the upper portion of the mortar layer (5), the cement rendering layer (3) is wrapped on the outer sides of the concrete layer (4) and the mortar layer (5), a plurality of first drainage pipes (41) communicated with the upper surface and the lower surface of the concrete layer (4) are arranged inside the concrete layer (4), a plurality of through holes (42) are arranged on the side surface of the first drainage pipes (41), a water outlet pipe (51) is transversely arranged on the mortar layer (5), and the first drainage pipes (41) are connected with the water outlet pipe (51), the side surface of the main body (1) is provided with a drain pipe (7) which inclines downwards, and the water outlet pipe (51) is connected with the drain pipe (7).

2. The alkali-return-preventing stair of claim 1, wherein: and a second sewer pipe (6) is arranged at the bottom of the first diversion trench (31), and the second sewer pipe (6) sequentially penetrates through the cement plastering layer (3) and the concrete layer (4) and is connected with the water outlet pipe (51).

3. The alkali-return-preventing stair of claim 1, wherein: step (2) upper portion both sides upwards extend and are equipped with arch (33), arch (33) are located guiding gutter (31) top, two the relative one side of arch (33) is equipped with water conservancy diversion mouth (34), water conservancy diversion mouth (34) and guiding gutter (31) intercommunication.

4. The alkali-return-preventing stair of claim 3, wherein: the protrusion (33) extends obliquely downward toward one side of the middle of the step (2).

5. The alkali-return-preventing stair of claim 4, wherein: the middle of the upper part of the step (2) is arranged downwards towards two sides in an inclined mode.