Air bag for concrete isolation

Abstract

The utility model relates to an air bag for concrete isolation, which comprises an air bag body, the top of the air bag body is communicated with an installation cavity, the top of the installation cavity is communicated with an air inlet pipe, a protection mechanism is arranged in the installation cavity, and the protection mechanism comprises a telescopic rod, a spring, a baffle, a connecting pipe, a connecting hole and a sealing cover. The air inflation device has the advantages that during air inflation, the sealing cover is opened, the air inflation pipe extends into the air inlet pipe, the connecting pipe is pushed to move downwards, the connecting pipe drives the baffle to move and extrudes the spring and the telescopic rod, the baffle is made to be far away from the top of the inner cavity of the installation cavity and enter the inner cavity of the installation cavity through the connecting hole, and at the moment, the inflator is started; air enters the mounting cavity through the connecting hole and enters the air bag body from the mounting cavity to inflate the air bag body; after inflation is completed, the inflation pipe is drawn out, the baffle and the connecting pipe reset under the action of the spring, the baffle abuts against the top of the inner cavity of the mounting cavity, and air leakage of the air bag body is effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of concrete construction technology, and in particular to an airbag for concrete isolation. Background Technology

[0002] A partition airbag is a cylindrical flexible air model that can be quickly inflated and deflated. After inflation, adjacent partition airbags fit tightly together, effectively separating high- and low-grade concrete and preventing the waste of high-grade concrete. Existing airbags only have a sealing cap at the air inlet. Although this can seal the airbag, during use, the air will flow back due to the pressure of the concrete, causing impact and damage to the sealing cap. This cannot guarantee the airtightness of the airbag, leading to gas leakage and affecting the isolation effect of the airbag. Utility Model Content

[0003] The purpose of this invention is to provide an airbag for concrete isolation, thereby solving the aforementioned problems in the prior art.

[0004] The technical problem to be solved by this utility model is to provide an airbag for concrete isolation.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] An airbag for concrete isolation includes an airbag body, the top of the airbag body is connected to an installation cavity, the top of the installation cavity is connected to an air inlet pipe, and a protective mechanism is provided inside the installation cavity.

[0007] The protective mechanism includes a telescopic rod, a spring, a baffle, a connecting pipe, a connecting hole, and a sealing cap. Multiple telescopic rods are vertically arranged upwards at the bottom of the mounting cavity. The baffle is located at the top of each telescopic rod. Springs are fitted onto the outer surface of each telescopic rod, respectively abutting against the bottom of the baffle and the bottom of the inner cavity of the mounting cavity. The diameter of the baffle is larger than the inner diameter of the air intake pipe but smaller than the inner diameter of the mounting cavity. A connecting pipe located inside the air intake pipe is vertically arranged upwards at the middle of the baffle. A connecting hole is opened at one end of the connecting pipe near the baffle. The sealing cap is threaded onto the outer surface of the air intake pipe.

[0008] The beneficial effects of this invention are as follows: During inflation, the sealing cover is opened, the inflation tube is inserted into the air inlet tube, and the connecting tube is pushed downwards. The connecting tube moves the baffle and squeezes the spring and telescopic rod, causing the baffle to move away from the top of the mounting cavity. The connecting hole enters the mounting cavity. At this time, the inflator is started, and gas enters the mounting cavity through the connecting hole and then enters the airbag body from the mounting cavity to inflate the airbag body. After inflation is complete, the inflation tube is pulled out, and the baffle and connecting tube return to their original positions under the action of the spring. The baffle abuts against the top of the mounting cavity, effectively preventing the airbag from... Even if the airbag body is compressed by concrete, the backflowing gas impacts the baffle, further pressing the baffle against the top of the installation cavity, thus preventing further air leakage. During deflation, the sealing cap is loosened, and the extraction pipe pushes the connecting pipe and baffle downwards. The connecting hole re-enters the installation cavity, and the gas in the airbag body is extracted through the extraction pump and pipe, thus deflating the airbag body. This protective mechanism effectively prevents air leakage and avoids impact and damage to the sealing cap caused by backflowing gas when the airbag body is compressed by concrete.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, rubber pads are provided on the top of the inner cavity of the mounting cavity and on the upper surface of the baffle.

[0011] Furthermore, the telescopic rod includes a rod sleeve fixed to the bottom of the inner cavity of the mounting cavity, a sliding rod is slidably sleeved inside the rod sleeve, the top of the sliding rod is fixed to the bottom of the baffle, a slider is provided on the outer surface of the sliding rod, and a sliding groove adapted to the slider is opened in the inner wall of the rod sleeve, and the slider is slidably connected to the inside of the sliding groove.

[0012] Furthermore, the sealing cap is fixedly connected to the outside of the air intake pipe by a fixing rope.

[0013] Furthermore, the inner wall of the airbag body is provided with a protective membrane.

[0014] Furthermore, the protective film is made of glass fiber.

[0015] Furthermore, it also includes auxiliary reinforcing bars, the interior of which is provided with main reinforcing bars. By inserting multiple airbag bodies into the interior of the main reinforcing bars, the auxiliary reinforcing bars are divided into a pre-pouring zone and a post-pouring zone. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a top view of the airbag body and protective film of this utility model.

[0018] Figure 3 This is a schematic diagram of the protective mechanism of this utility model;

[0019] Figure 4 This is a structural schematic diagram of the airbag body, auxiliary steel bars, and main steel bars of this utility model.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Airbag body, 2. Protective membrane, 3. Installation cavity, 4. Air inlet pipe, 5. Protection mechanism, 51. Telescopic rod, 52. Spring, 53. Baffle, 54. Connecting pipe, 55. Connecting hole, 56. Sealing cap, 57. Fixing rope, 6. Auxiliary steel bar, 7. Main steel bar. Detailed Implementation

[0022] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0023] like Figures 1 to 4 As shown, Embodiment 1 of this utility model provides a concrete isolation airbag, which includes an airbag body 1, an installation cavity 3 connected to the top of the airbag body 1, an air inlet pipe 4 connected to the top of the installation cavity 3, and a protective mechanism 5 provided inside the installation cavity 3.

[0024] The protective mechanism 5 includes a telescopic rod 51, a spring 52, a baffle 53, a connecting pipe 54, a connecting hole 55, and a sealing cap 56. Multiple telescopic rods 51 are vertically arranged at the bottom of the mounting cavity 3. A baffle 53 is provided at the top of the telescopic rod 51. Springs 52 are respectively fitted on the outer surface of the telescopic rod 51 and abut against the bottom of the baffle 53 and the bottom of the inner cavity of the mounting cavity 3. The diameter of the baffle 53 is larger than the inner diameter of the air intake pipe 4 and smaller than the inner diameter of the mounting cavity 3. A connecting pipe 54 located inside the air intake pipe 4 is vertically arranged in the middle of the baffle 53. A connecting hole 55 is opened at the end of the connecting pipe 54 near the baffle 53. The sealing cap 56 is threaded onto the outer surface of the air intake pipe 4.

[0025] During inflation, open the sealing cap 56, insert the inflation tube into the air inlet pipe 4, and push the connecting tube 54 downwards. The connecting tube 54 moves the baffle 53 and squeezes the spring 52 and telescopic rod 51, causing the baffle 53 to move away from the top of the mounting cavity 3. The connecting hole 55 enters the mounting cavity 3. At this time, start the inflator. Gas enters the mounting cavity 3 through the connecting hole 55 and then enters the airbag body 1 from the mounting cavity 3 to inflate the airbag body 1. After inflation is complete, pull out the inflation tube. The baffle 53 and connecting tube 54 return to their original positions under the action of the spring 52. The baffle 53 abuts against the top of the mounting cavity 3, effectively preventing the airbag body 1 from being inflated. Even if the airbag body 1 is compressed by concrete, the backflow of gas impacts the baffle 53, causing the baffle 53 to be further pressed against the top of the inner cavity of the mounting cavity 3, further preventing air leakage from the airbag body 1. When deflating, the sealing cap 56 is loosened, and the suction pipe pushes the connecting pipe 54 and the baffle 53 downward. The connecting hole 55 re-enters the inner cavity of the mounting cavity 3, and the gas in the airbag body 1 is extracted through the connecting hole 55 and the connecting pipe 54 by the suction machine and the suction pipe, thus deflating the airbag body 1. The protection mechanism 5 effectively prevents air leakage from the airbag body 1 and avoids impact and damage to the sealing cap 56 when the airbag body 1 is compressed by concrete and backflows.

[0026] This embodiment 2 provides a concrete isolation airbag. Based on embodiment 1, rubber pads are provided on the top of the inner cavity of the mounting cavity 3 and the upper surface of the baffle 53 to improve the sealing between the baffle 53 and the mounting cavity 3.

[0027] This embodiment 3 provides a concrete isolation airbag. Based on embodiment 1, the telescopic rod 51 includes a rod sleeve fixed to the bottom of the inner cavity of the installation cavity 3. A sliding rod is slidably fitted inside the rod sleeve. The top of the sliding rod is fixed to the bottom of the baffle 53. A slider is provided on the outer surface of the sliding rod. A groove adapted to the slider is opened in the inner wall of the rod sleeve. The slider is slidably connected to the inside of the groove. The baffle 53 moves up and down in a straight line through the telescopic rod 51.

[0028] In this embodiment 4, a concrete isolation airbag is provided. Based on embodiment 1, the sealing cover 56 is fixedly connected to the outside of the air inlet pipe 4 by a fixing rope 57, which is used to limit the sealing cover 56 and prevent the sealing cover 56 from being lost.

[0029] This embodiment 5 describes a concrete isolation airbag. Based on embodiment 1, the inner wall of the airbag body 1 is provided with a protective membrane 2 to improve the strength and pressure resistance of the airbag body 1.

[0030] This embodiment 6 describes a concrete isolation airbag. Based on embodiment 5, the protective film 2 is made of glass fiber, which enhances the strength and pressure resistance of the airbag body 1 while maintaining the lightweight characteristics of the material.

[0031] This embodiment 7 provides a concrete isolation airbag, which, based on embodiments 1 to 6, further includes an auxiliary reinforcing bar 6. The auxiliary reinforcing bar 6 has a main reinforcing bar 7 inside. By inserting multiple airbag bodies 1 into the main reinforcing bar 7, the auxiliary reinforcing bar 6 is divided into a pre-pouring area and a post-pouring area. Through the isolation formed by the multiple airbag bodies 1, the pre-pouring area is poured first, and then the post-pouring area is poured, preventing different types of concrete from contacting each other in the pre-pouring area and the post-pouring area.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An airbag for concrete isolation, characterized in that, Includes an airbag body (1), the top of which is connected to an installation cavity (3), the top of which is connected to an air inlet pipe (4), and the interior of the installation cavity (3) is provided with a protective mechanism (5). The protective mechanism (5) includes a telescopic rod (51), a spring (52), a baffle (53), a connecting pipe (54), a connecting hole (55), and a sealing cap (56). The bottom of the mounting cavity (3) is provided with multiple telescopic rods (51) vertically upward. The top of the telescopic rod (51) is provided with the baffle (53). The outer surface of the telescopic rod (51) is fitted with springs (52) that abut against the bottom of the baffle (53) and the bottom of the inner cavity of the mounting cavity (3). The diameter of the baffle (53) is larger than the inner diameter of the air inlet pipe (4) and smaller than the inner diameter of the mounting cavity (3). The middle part of the baffle (53) is provided with the connecting pipe (54) located inside the air inlet pipe (4) vertically upward. The end of the connecting pipe (54) near the baffle (53) is provided with the connecting hole (55). The sealing cap (56) is threaded onto the outer surface of the air inlet pipe (4).

2. The concrete isolation airbag according to claim 1, characterized in that, Rubber pads are provided on the top of the inner cavity of the mounting cavity (3) and on the upper surface of the baffle (53).

3. The concrete isolation airbag according to claim 1, characterized in that, The telescopic rod (51) includes a rod sleeve fixed to the bottom of the inner cavity of the mounting cavity (3). A sliding rod is slidably sleeved inside the rod sleeve. The top of the sliding rod is fixed to the bottom of the baffle (53). A slider is provided on the outer surface of the sliding rod. A groove adapted to the slider is opened in the inner wall of the rod sleeve. The slider is slidably connected to the inside of the groove.

4. The concrete isolation airbag according to claim 1, characterized in that, The sealing cap (56) is fixedly connected to the outside of the air intake pipe (4) by a fixing rope (57).

5. The concrete isolation airbag according to claim 1, characterized in that, The inner wall of the airbag body (1) is provided with a protective film (2).

6. The concrete isolation airbag according to claim 5, characterized in that, The protective film (2) is made of glass fiber.

7. A concrete isolation airbag according to any one of claims 1 to 6, characterized in that, It also includes auxiliary reinforcing bars (6), inside which are main reinforcing bars (7). By inserting multiple airbag bodies (1) into the interior of the main reinforcing bars (7), the auxiliary reinforcing bars (6) are divided into a pre-pouring area and a post-pouring area.

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