Inflatable air bag for sealing gap between well lid base and shaft

Abstract

The utility model relates to the technical field of shaft buildings, in particular to an inflatable air bag used for sealing a gap between a well lid base and a shaft. According to the technical scheme, the inflatable airbag for sealing the gap between the well lid base and the shaft comprises a top layer, a main body and a bottom layer which are integrally formed from top to bottom; an inflation inlet is formed in the top layer; the main body is arranged in a shaft and used for blocking a gap between the shaft and a well lid base. The inflatable air bag for sealing the gap between the well lid base and the shaft solves the technical problem that concrete materials fall into a well from the gap in the process of well expansion and concrete pouring.

Description

An inflatable airbag for sealing the gap between the manhole cover base and the manhole casing. Technical Field

[0001] This utility model relates to the field of well construction technology, and in particular to an inflatable airbag for sealing the gap between the well cover base and the well shaft. Background Technology

[0002] After the well shaft is poured, a prefabricated well cover will be installed on top of the well shaft. The well cover and its base need to be flush with the ground, which will result in a gap between the well shaft and the well cover base. During construction, concrete needs to be poured to fill the gap and integrate the well cover base with the concrete.

[0003] During the process of pouring concrete into the well, concrete material will fall into the well through these gaps. The concrete material that falls into the well needs to be cleaned up by a professional construction team, which is time-consuming and labor-intensive. Summary of the Invention

[0004] This invention provides an inflatable airbag for sealing the gap between the manhole cover base and the manhole casing, solving the technical problem of concrete material falling into the manhole through the gap during the process of pouring concrete for manhole expansion.

[0005] To achieve this technical objective, the present invention adopts the following solution: an inflatable airbag for sealing the gap between the base of a manhole cover and the manhole casing, comprising an integrally formed top layer, a main body, and a bottom layer from top to bottom;

[0006] An air inlet is located on the top layer;

[0007] The main body is located inside the well casing and is used to seal the gap between the well casing and the well cover base.

[0008] Furthermore, the top layer is an upward-curving arc surface, and two symmetrically arranged handles are provided on the top layer.

[0009] Furthermore, the main body is cylindrical, and the outer wall of the main body abuts against the side wall of the well shaft.

[0010] Furthermore, the bottom layer is a downward-curving arc surface.

[0011] Furthermore, the inflation port is equipped with a plug.

[0012] Furthermore, the handle includes connecting posts. Two connecting posts are integrally formed on each side of the top surface of the top layer. An arc-shaped strip is integrally formed between the tops of the two connecting posts on the same side of the top layer. Below the arc-shaped strip, there is a crossbeam integrally formed with the corresponding two connecting posts. A support rod is inserted between the two crossbeams distributed on both sides of the top layer. The two ends of the support rod rest on the top surface of the manhole cover base.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] The present invention discloses an inflatable airbag for sealing the gap between the manhole cover base and the manhole cylinder. The airbag is installed inside the manhole cylinder and can effectively seal the gap between the manhole cylinder and the manhole cover base, effectively preventing concrete material from falling into the manhole cylinder through the gap.

[0015] A handle is provided to facilitate the removal of the inflatable airbag from the well casing. A support rod is inserted into the handle, which can be used to secure the inflatable airbag to the base of the well cover, preventing the airbag from falling into the well casing if it is underinflated. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the use of an inflatable airbag for sealing the gap between the base of a manhole cover and the manhole barrel according to an embodiment of the present invention;

[0017] Figure 2 is a schematic diagram of an inflatable airbag (removed from the well casing) for sealing the gap between the well cover base and the well casing according to an embodiment of the present invention:

[0018] Figure 3 is a schematic diagram of an inflatable airbag for sealing the gap between the base of a manhole cover and the manhole barrel, provided by an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Top layer; 2. Main body; 3. Bottom layer; 4. Air inlet; 5. Well shaft; 6. Well cover base; 7. Gap; 8. Handle; 81. Connecting column; 82. Curved strip; 83. Crossbeam; 9. Plug; 10. Support rod. Detailed Implementation

[0021] To fully understand the purpose, features and effects of this utility model, the following specific embodiments will be used to describe this utility model in detail, but this utility model is not limited thereto.

[0022] As shown in Figures 1 to 3, this utility model provides an inflatable airbag for sealing the gap between the base of a manhole cover and the manhole casing, comprising a top layer 1, a main body 2, and a bottom layer 3 integrally formed from top to bottom. The top layer 1 is provided with an inflation port 4, and the inflation port 4 is plugged with a plug 9.

[0023] The main body 2 is located inside the well casing 5 and is used to seal the gap 7 between the well casing 5 and the well cover base 6. Furthermore, the main body 2 is cylindrical, and the outer side wall of the main body 2 abuts against the inner side wall of the well casing 5.

[0024] After inflation, the top layer 1 is an upward-curved arc surface, and two symmetrically arranged handles 8 are provided on the top layer 1. The bottom layer 3 is a downward-curved arc surface.

[0025] Furthermore, the handle 8 includes connecting posts 81. Two connecting posts 81 are integrally formed on each side of the top surface of the top layer 1. An arc-shaped strip 82 is integrally formed between the tops of the two connecting posts 81 on the same side of the top layer 1. A crossbeam 83 integrally formed with the corresponding two connecting posts 81 is provided below the arc-shaped strip 82. A support rod 10 is inserted between the two crossbeams 83 distributed on both sides of the top layer 1. The two ends of the support rod 10 rest on the top surface of the manhole cover base 6.

[0026] In use, first place the airbag to be inflated into the well shaft 5, adjust the position of the airbag appropriately, insert the support rod 10 into the crossbeam 83, and place both ends of the support rod 10 on the top surface of the well cover base 6. Remove the plug 9, connect the air pump to the inflation port 4, and start the air pump to inflate the airbag. During inflation, adjust the position of the airbag so that it can seal the gap 7 between the well shaft 5 and the well cover base 6. When the main body 2 of the airbag is completely attached to the side wall of the well shaft 5 and completely seals the gap 7, stop inflation, remove the air pump, seal the inflation port 4 with the plug 9, and finally pour concrete. Since the airbag is set inside the well shaft 5 and does not extend into the gap 7, this ensures that the gap 7 can be fully filled with concrete material, while ensuring that concrete material does not fall into the well shaft 5.

[0027] Finally, it should be noted that the above-listed embodiments are merely preferred embodiments of the present invention. Of course, those skilled in the art can make modifications and variations to the present invention. If such modifications and variations fall within the scope of the claims of the present invention and their equivalents, they should be considered as being within the protection scope of the present invention.

Claims

1. An inflatable airbag for sealing the gap between the base of a manhole cover and the manhole casing, characterized in that, It includes a top layer (1), a main body (2) and a bottom layer (3) formed in one piece from top to bottom; the top layer (1) is provided with an air inlet (4); the main body (2) is located inside the well barrel (5) and is used to seal the gap (7) between the well barrel (5) and the well cover base (6).

2. An inflatable airbag for sealing the gap between the well cover base and the well shaft according to claim 1, characterized in that, The top layer (1) is an upwardly curved arc surface, and two symmetrically arranged handles (8) are provided on the top layer (1).

3. An inflatable airbag for sealing the gap between the well cover base and the well shaft according to claim 1, characterized in that, The main body (2) is cylindrical, and the outer side wall of the main body (2) abuts against the inner side wall of the well casing (5).

4. An inflatable airbag for sealing the gap between the well cover base and the well shaft according to claim 1, characterized in that, The bottom layer (3) is a downward-curved arc surface.

5. An inflatable airbag for sealing the gap between the well cover base and the well shaft according to claim 1, characterized in that, The air inlet (4) is plugged with a plug (9).

6. An inflatable airbag for sealing the gap between the manhole cover base and the manhole casing according to claim 2, characterized in that, The handle (8) includes connecting posts (81). Two connecting posts (81) are integrally formed on both sides of the top surface of the top layer (1). An arc strip (82) is integrally formed between the tops of the two connecting posts (81) on the same side of the top layer (1). A crossbeam (83) integrally formed with the corresponding two connecting posts (81) is provided below the arc strip (82). A support rod (10) is inserted between the two crossbeams (83) distributed on both sides of the top layer (1). The two ends of the support rod (10) rest on the top surface of the manhole cover base (6).

Images