CN113957894A

CN113957894A - Sealing device adaptable to steel pipe piles of different diameters

Info

Publication number: CN113957894A
Application number: CN202111511044.7A
Authority: CN
Inventors: 兰韡; 姚利国; 刘聪
Original assignee: Shanghai Shen Yuan Geotechnical Co ltd
Current assignee: Shanghai Shen Yuan Geotechnical Co ltd
Priority date: 2021-12-11
Filing date: 2021-12-11
Publication date: 2022-01-21

Abstract

The invention discloses a sealing device suitable for steel pipe piles with different diameters, and relates to the technical field of foundation pit engineering. The sealing device comprises an upper steel plate and a lower steel plate, a screw rod is arranged between the upper steel plate and the lower steel plate and is a hollow steel component, the screw rod is connected with the upper steel plate through a screw, the screw rod is rigidly connected with the lower steel plate, a sealing rubber ring is arranged on the lower steel plate, a sealing air bag is further arranged between the upper steel plate and the lower steel plate, and the sealing air bag is fixed on the screw rod. The construction device can automatically seal the interior of the steel pipe pile by using gas pressure in the process of injecting gas and pressurizing the gas into the prefabricated pipe pile, improves the construction efficiency, is convenient to operate, has wide application range and good sealing effect, is beneficial to recycling and constructing the steel pipe pile, and can adapt to the steel pipe piles with different diameters in the market at present.

Description

Sealing device adaptable to steel pipe piles of different diameters

Technical Field

The invention relates to the technical field of foundation pit engineering, in particular to a sealing device suitable for steel pipe piles with different diameters.

Background

The pile in the PC construction method is a combined pile formed by combining a Larsen pile and a prefabricated steel pipe pile, and is suitable for a supporting structure of a foundation pit supporting engineering. In the recovery process of the combined pile in the PC construction method, the soil effect can be reduced by adopting a mode of injecting gas into a closed cavity formed inside the steel pipe pile and pressurizing. Generally, a closed cavity is formed inside the steel pipe pile in a full-length welding or bolt mode, operation is complex, the sealing effect is poor, the recycling construction of the steel pipe pile is affected, the steel pipe pile is difficult to adapt to the steel pipe piles with different diameters in the current market, and therefore the invention provides a novel solution.

Disclosure of Invention

The invention aims to provide a sealing device capable of adapting to steel pipe piles with different diameters so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a sealing device suitable for steel pipe piles with different diameters comprises the steel pipe pile, an air compressor, an air pressure compensation controller and a sealing device, wherein an air delivery pipe is connected between the output end of the air compressor and the sealing device, the sealing device comprises an upper steel plate and a lower steel plate, a screw rod is arranged between the upper steel plate and the lower steel plate, the screw rod is a hollow steel component, the screw rod is connected with the upper steel plate through a screw, the screw rod is rigidly connected with the lower steel plate, a sealing rubber ring is arranged on the lower steel plate, a sealing air bag is also arranged between the upper steel plate and the lower steel plate, the sealing air bag is fixed on the screw rod, a first air core structure and a second air core structure are respectively arranged on the screw rod, the first air core structure is positioned in the sealing air bag, the second air core structure is located below the lower steel plate, the air outlet end of the air delivery pipe is rotatably connected with the top of the screw rod, and the upper steel plate is provided with two switch structures for controlling the opening and closing of the first air core structure and the second air core structure.

As preferred technical scheme in this application, first gas core structure and the unanimous gas core structure specification all include the gas core shell, the inside inner shell that is equipped with of gas core shell, and the inner shell both ends are the opening form, and the inner shell level is provided with the core bar, and the sealed head of core bar one end fixedly connected with, core bar other end fixedly connected with kicking block, the welding has fixing spring on the inner shell inner wall, and fixing spring one end is fixed on sealed overhead.

As preferred technical scheme in this application, the switch structure is including rotating the rotating rod of connecting on last steel sheet, and the equal fixedly connected with initiative bevel gear in rotating the rod bottom rotates and is connected with the screw rod on the screw rod outer wall, and fixedly connected with and the driven bevel gear of initiative bevel gear looks adaptation on the screw rod, and the spiro union has the movable plate on the screw rod, fixedly connected with and gag lever post on the screw rod outer wall, gag lever post and movable plate sliding connection, movable plate bottom one side fixedly connected with stripper rod, sealed gasbag and lower steel sheet all rotate with the rotating rod and are connected.

As the preferable technical scheme in the application, the diameter of the upper steel plate is larger than that of the steel pipe pile, and the upper steel plate and the steel pipe pile are fixed through the lock catch.

As the preferable technical scheme in the application, the sealing air bag is a reinforced air bag, and the diameter of the sealing air bag is larger than the inner diameter of the steel pipe pile.

As the preferred technical scheme in this application, the screw rod top symmetry welding has the rotation handle, and the welding of rotating rod top has the nut head.

Compared with the prior art, the invention has the beneficial effects that:

this sealing device of adaptable different diameter steel-pipe pile, this construction equipment can utilize inside gas pressure self-sealing steel-pipe pile in to the prefabricated tubular pile gas injection pressurization process, improve the efficiency of construction, and convenient operation, application scope is wide, sealed effectual, do benefit to the steel-pipe pile and retrieve the construction, and can adapt to the steel-pipe pile of the different diameters in the existing market.

In addition, the device can realize convenient and quick opening of the first gas core structure and the second gas core structure, so that the pressurization of gas is conveniently controlled, and the opening and closing processes are both convenient and convenient to use.

Drawings

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

FIG. 2 is a schematic illustration of the disassembled structure of FIG. 1 according to the present invention;

FIG. 3 is a schematic perspective view of the sealing device of the present invention;

FIG. 4 is a schematic view of the present invention shown in FIG. 3 with the bladder and upper steel plate removed;

FIG. 5 is a schematic perspective view of the switch structure of the present invention with the rotating bar removed;

fig. 6 is a schematic cross-sectional structural view of the first air core structure or the second air core structure of the present invention.

In the figure: 1. steel pipe piles; 2. a sealing device; 201. steel plate feeding; 202. locking; 203. sealing the air bag; 204. a screw; 205. a lower steel plate; 206. sealing the rubber ring; 207. rotating the handle; 3. an air compressor; 301. an air pressure compensation controller; 302. a gas delivery pipe; 4. rotating the rod; 401. a nut head; 402. a drive bevel gear; 403. a threaded rod; 404. a driven bevel gear; 405. a limiting rod; 406. moving the plate; 407. an extrusion stem; 5. a first air core structure; 501. an air core housing; 502. an inner shell; 503. a core bar; 504. a sealing head; 505. a top block; 506. fixing the spring; 6. a second air core structure.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that in the description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Further, it will be appreciated that the dimensions of the various elements shown in the figures are not drawn to scale, for ease of description, and that the thickness or width of some layers may be exaggerated relative to other layers, for example.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus, once an item is defined or illustrated in one figure, it will not need to be further discussed or illustrated in detail in the description of the following figure.

As shown in fig. 1 to 6, the present invention provides a technical solution: a sealing device suitable for steel pipe piles with different diameters comprises a steel pipe pile 1, an air compressor 3, an air pressure compensation controller 301 and a sealing device 2, wherein an air conveying pipe 302 is connected between the output end of the air compressor 3 and the sealing device 2, the sealing device 2 comprises an upper steel plate 201 and a lower steel plate 205, a screw 204 is arranged between the upper steel plate 201 and the lower steel plate 205, the screw 204 is a hollow steel member, the screw 204 is connected with the upper steel plate 201 through screws, the screw 204 is rigidly connected with the lower steel plate 205, a sealing rubber ring 206 is arranged on the lower steel plate 205, a sealing air bag 203 is further arranged between the upper steel plate 201 and the lower steel plate 205, the sealing air bag 203 is fixed on the screw 204, a first air core structure 5 and a second air core structure 6 are respectively arranged on the screw 204, the first air core structure 5 is positioned in the sealing air bag 203, the second air core structure 6 is positioned below the lower steel plate 205, the air conveying pipe 302 is rotatably connected with the top of the screw 204, two switch structures for controlling the opening and closing of the first air core structure 5 and the second air core structure 6 are installed on the upper steel plate 201.

As a specific embodiment, the first gas core structure 5 and the second gas core structure 6 both comprise a gas core outer shell 501 with consistent specifications, an inner shell 502 is arranged inside the gas core outer shell 501, two ends of the inner shell 502 are open, a core rod 503 is horizontally arranged on the inner shell 502, one end of the core rod 503 is fixedly connected with a sealing head 504, the other end of the core rod 503 is fixedly connected with a top block 505, a fixing spring 506 is welded on the inner wall of the inner shell 502, and one end of the fixing spring 506 is fixed on the sealing head 504.

As a specific embodiment, the switch structure comprises a rotating rod 4 rotatably connected to an upper steel plate 201, the bottom of each rotating rod 4 is fixedly connected with a driving bevel gear 402, the outer wall of a screw 204 is rotatably connected with a threaded rod 403, the threaded rod 403 is fixedly connected with a driven bevel gear 404 matched with the driving bevel gear 402, the threaded rod 403 is screwed with a moving plate 406, the outer wall of the screw 204 is fixedly connected with a limiting rod 405, the limiting rod 405 is slidably connected with the moving plate 406, one side of the bottom of the moving plate 406 is fixedly connected with an extrusion rod 407, and the sealed airbag 203 and the lower steel plate 205 are rotatably connected with the rotating rod 4.

Specifically, when the first gas core structure 5 or the second gas core structure 6 needs to be opened for inflation, firstly, the nut head 401 is rotated by a hardware tool, the nut head 401 drives the rotating rod 4 to rotate, so as to drive the driving bevel gear 402 fixed on the rotating rod 4 to rotate, the threaded rod 403 is rotatably connected with the screw 204, the driven bevel gear 404 is fixed on the threaded rod 403, the driving bevel gear 402 and the driven bevel gear 404 are engaged, so as to drive the driven bevel gear 404 and the threaded rod 403 to rotate, further, because the moving plate 406 is screwed with the threaded rod 403, and the moving plate 406 is limited by the limiting rod 405, further, along with the rotation of the threaded rod 403, the moving plate 406 moves inwards, so that the pressing rod 407 pushes the core rod 503 towards the inner side of the screw 204, further, the sealing head 504 is separated from the inner shell 502, at this time, the gas enters the inner shell 502 and goes out from the other end of the inner shell 502, and when air leakage is not needed, the nut head 401 is reversed.

As a specific embodiment, the diameter of the upper steel plate 201 is larger than that of the steel pipe pile 1, and the upper steel plate 201 and the steel pipe pile 1 are fixed by the lock catch 202, so that the upper steel plate 201 is convenient to open and detach, and the installation is also convenient. Sealed gasbag 203 is for adding the muscle gasbag, and sealed gasbag 203 diameter is greater than steel-pipe pile 1 internal diameter, and the symmetrical welding in screw rod 204 top has the rotation to 207, through rotating the rotation screw rod 204 that 207 can be comparatively light, more laborsaving, it has nut head 401 to rotate 4 top welding of stick, it needs to explain because it is thinner to rotate stick 4, consequently through establishing nut head 401 on rotating stick 4, the rotatory stick 4 that can relax through the instrument like this.

The sealing air bag 203 can be compressed and placed in the steel pipe pile 1 when not inflated; through gas injection pressurization of gas pipe 302, open first air core structure 5 and aerify for inside sealed gasbag 203 filled the tubular pile when aerifing the inflation, second air core structure 6 is when the gas injection pressurization, steel sheet 205 extrusion sealed gasbag 203 fills steel-pipe pile 1 down, and the hole is filled under the effect of atmospheric pressure to the sealed rubber circle 205 in the steel sheet 206 outside down, thereby forms the interior sealed cavity of stake.

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

Claims

1. The utility model provides a sealing device of adaptable different diameter steel-pipe pile, includes steel-pipe pile (1), air compressor machine (3), atmospheric pressure compensation controller (301) and sealing device (2), is connected with gas-supply pipe (302) between air compressor machine (3) output and sealing device (2), its characterized in that: the sealing device (2) comprises an upper steel plate (201) and a lower steel plate (205), a screw rod (204) is arranged between the upper steel plate (201) and the lower steel plate (205), the screw rod (204) is a hollow steel component, the screw rod (204) is connected with the upper steel plate (201) through screws, the screw rod (204) is rigidly connected with the lower steel plate (205), a sealing rubber ring (206) is arranged on the lower steel plate (205), a sealing air bag (203) is further arranged between the upper steel plate (201) and the lower steel plate (205), the sealing air bag (203) is fixed on the screw rod (204), a first air core structure (5) and a second air core structure (6) are respectively arranged on the screw rod (204), the first air core structure (5) is positioned in the sealing air bag (203), the second air core structure (6) is positioned below the lower steel plate (205), the air outlet end of the air pipe (302) is rotatably connected with the top of the screw rod (204), and the upper steel plate (201) is provided with a device for controlling the opening and closing of the first air core structure (5) and the second air core structure (6) Two switch structures.

2. The sealing device capable of adapting to steel pipe piles with different diameters according to claim 1, wherein: the first gas core structure (5) and the second gas core structure (6) are consistent in specification and comprise a gas core outer shell (501), an inner shell (502) is arranged inside the gas core outer shell (501), two ends of the inner shell (502) are in an opening shape, a core rod (503) is horizontally arranged on the inner shell (502), a sealing head (504) is fixedly connected with one end of the core rod (503), a top block (505) is fixedly connected with the other end of the core rod (503), a fixing spring (506) is welded on the inner wall of the inner shell (502), and one end of the fixing spring (506) is fixed on the sealing head (504).

3. The sealing device capable of adapting to steel pipe piles with different diameters according to claim 1, wherein: the switch structure is including rotating rod (4) of connecting on last steel sheet (201), the equal fixedly connected with drive bevel gear (402) in rotation rod (4) bottom, it is connected with screw rod (403) to rotate on screw rod (204) outer wall, fixedly connected with driven bevel gear (404) with drive bevel gear (402) looks adaptation on screw rod (403), spiro union has movable plate (406) on screw rod (403), fixedly connected with and gag lever post (405) on screw rod (204) outer wall, gag lever post (405) and movable plate (406) sliding connection, movable plate (406) bottom one side fixedly connected with crushing bar (407), sealed gasbag (203) and lower steel sheet (205) all rotate with rotating rod (4) and are connected.

4. The sealing device capable of adapting to steel pipe piles with different diameters according to claim 1, wherein: the diameter of the upper steel plate (201) is larger than that of the steel pipe pile (1), and the upper steel plate (201) and the steel pipe pile (1) are fixed through a lock catch (202).

5. The sealing device capable of adapting to steel pipe piles with different diameters according to claim 1, wherein: the sealing air bag (203) is a reinforced air bag, and the diameter of the sealing air bag (203) is larger than the inner diameter of the steel pipe pile (1).

6. The sealing device capable of adapting to steel pipe piles with different diameters according to claim 3, wherein: the top of the screw rod (204) is symmetrically welded with a rotating handle (207), and the top of the rotating rod (4) is welded with a nut head (401).