CN111809632B

CN111809632B - Deep foundation pit cover digging construction main structure supporting device

Info

Publication number: CN111809632B
Application number: CN202010791247.5A
Authority: CN
Inventors: 刘宝忠; 张志军; 姜早龙; 金波; 董炬洪; 洪源; 刘辉喜
Original assignee: Third Engineering Co Ltd of China Railway Seventh Group Co Ltd
Current assignee: Third Engineering Co Ltd of China Railway Seventh Group Co Ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2022-01-11
Anticipated expiration: 2040-08-07
Also published as: CN111809632A

Abstract

The invention relates to the technical field of foundation pit supporting devices, in particular to a supporting device for a main structure of deep foundation pit cover excavation construction, which comprises a control column, wherein two ends of the control column are respectively provided with a supporting column, one end of each supporting column extends into a columnar groove formed in the bottom surface of the control column, a plurality of clamping units which are uniformly distributed are annularly arranged around the supporting column and are arranged in the control column, the control column is provided with a plurality of uniformly distributed collecting and distributing tube cavities I and II on the ring, the middle part of the control column is provided with a three-way tube cavity, the structural design of the invention realizes the convenient telescopic adjustment of the support column on the control column, when the gas is injected into the three-way pipe cavity, only the first sealing ring and the second sealing ring need to be rotated to control whether the outer exhaust ports of the first collecting and distributing pipe cavity and the second collecting and distributing pipe cavity are blocked or not, can realize the stable control to a plurality of screens units, make things convenient for whole strutting arrangement to take off or lay from between two foundation ditch risers fast like this.

Description

Deep foundation pit cover digging construction main structure supporting device

Technical Field

The invention relates to the technical field of foundation pit supporting devices, in particular to a supporting device for a deep foundation pit cover excavation construction main structure.

Background

Foundation ditch strutting arrangement among the prior art simple structure, the function is single, and the actual demand in the work progress is dug to the deep basal pit lid of satisfying that can not be fine, and deep basal pit lid digs and has certain reliance to foundation ditch baffle strutting arrangement's convenient installation characteristics in the work progress, and strutting arrangement's installation or take out all can cause the influence to the construction progress.

If the supporting device has a stable and efficient supporting function and is conveniently and fixedly installed in a foundation pit, the problem can be solved, and the supporting device for the main structure of the deep foundation pit cover excavation construction is provided.

Disclosure of Invention

The invention aims to provide a supporting device for a main structure in deep foundation pit cover excavation construction, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a supporting device for a deep foundation pit cover excavation construction main body structure comprises a control column, wherein two ends of the control column are respectively provided with a supporting column, one end of each supporting column extends into a cylindrical groove formed in the bottom surface of the control column, a plurality of clamping units which are uniformly distributed are annularly arranged around the supporting columns, the clamping units are arranged in the control column, the control column is annularly provided with a plurality of uniformly distributed first collecting and distributing cavities and second collecting and distributing cavities, a three-way cavity is formed in the middle position of the control column, one ends of the first collecting and distributing cavities and the second collecting and distributing cavities are communicated with the three-way cavity, one end of the three-way cavity is connected with the outer wall of the control column, the other two ends of the three-way cavity are respectively communicated with the two cylindrical grooves in the control column, the other ends of the first collecting and distributing cavities are connected with the bottom surface of the end of the control column, and the end position of the control column is connected with a first sealing ring and a second sealing ring, the inner cavity of the first sealing ring is sleeved with a second sealing ring, the first sealing ring and the second sealing ring have the same structure, a plurality of through holes which are uniformly distributed are annularly arranged on the first sealing ring and the second sealing ring, the clamping unit comprises a clamping seat, a gear, a sliding plate, an air bag, a one-way valve and a control device, a plurality of transmission grooves which are uniformly distributed are arranged on the side wall of the supporting column, the gear is meshed with the transmission grooves, one end of the clamping seat is connected with the gear, the other end of the clamping seat extends into the sliding plate, the air bag is fixedly connected to one side of the sliding plate, the one side of the air bag, which is far away from the sliding plate, is provided with the one-way valve, one side of the one-way valve is provided with the control device, the inner wall of the control column is provided with a control cavity and a branch pipe cavity, the clamping seat, the gear, the sliding plate and the air bag are arranged in the control cavity, and a branch pipe cavity is communicated with the first control cavity and a collecting and dispersing pipe cavity, the check valve is arranged in the branch pipe cavity, one end of the control device extends into the first collecting and distributing pipe cavity, the other end of the control device extends into the second collecting and distributing pipe cavity, the check valve comprises a sealing barrel, a movable ball and a partition plate, the sealing barrel is arranged at one end of the movable ball, the partition plate is arranged at the other end of the movable ball, a tubular groove is formed in the control column, one side of the second collecting and distributing pipe cavity is communicated with a plurality of evenly distributed tubular grooves, the control device is arranged in the tubular groove and comprises a corrugated pipe, a positioning barrel, a sliding column, a spring and an ejector rod, the positioning barrel is fixedly connected at one end of the corrugated pipe, the sliding column is fixedly connected at the other end of the corrugated pipe, the spring is contacted at one end of the sliding column, the ejector rod is sleeved at the middle part of the spring, one end of the ejector rod is fixedly connected with the sliding column, the other end of the ejector rod penetrates through a through hole formed in the control column, and the end part of the ejector rod extends into the branch pipe cavity, one end of the branch pipe cavity extends into the inner cavity of the air bag, the sealing barrel and the partition plate are fixed on the inner wall of the branch pipe cavity, the partition plate is in a circular plate shape, a plurality of through holes are uniformly distributed on a plate body, the sealing barrel is in a circular barrel shape, a cambered groove is formed in the middle of the bottom surface of one side of the barrel body, the cambered groove of the sealing barrel is matched with the movable ball, one end of the control device points to the middle of the sealing barrel, one end of the spring is pressed against the sliding column, the sliding column is movably sleeved in the inner cavity of the tubular groove, the positioning barrel is fixed on the inner wall of the tubular groove, the control cavity is in a circular plate cavity shape, one end of the circular plate cavity is communicated with the square plate cavity, the air bag is fixed on the bottom surface of the square plate cavity of the control cavity, the gear is matched and arranged in the circular plate cavity of the control cavity and communicated with the inner cavity of the columnar groove of the control column, the sliding plate is in a cuboid shape, a sliding plate is provided with a sliding groove, and the clamping seat is in a square plate shape, one end of the square plate is integrally connected with a cylinder, the cylindrical part of the clamping seat extends to a sliding groove formed in the sliding plate, a plurality of triangular prism-shaped clamping grooves are formed in a square plate of the clamping seat, and the clamping grooves in the clamping seat are connected with the gears in a meshed mode.

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

1. the structure design of the invention realizes the convenient telescopic adjustment of the support column on the control column, and when the three-way pipe cavity is injected with gas, the stable control of a plurality of clamping units can be realized only by rotating the first sealing ring and the second sealing ring and controlling whether the outer exhaust ports of the first collecting and distributing pipe cavity and the second collecting and distributing pipe cavity are blocked, so that the whole support device can be conveniently and quickly taken down or placed between the two foundation pit vertical plates;

2. through the design of screens unit, realize stable air current control transmission, block the design of support column through a plurality of gears, ensure the stable fixed connection between control post and the support column, make whole strutting arrangement have extremely strong compressive capacity.

Drawings

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

FIG. 2 is a schematic view of the structure of the card unit;

fig. 3 is a gear position distribution diagram.

In the figure: the device comprises a control column 1, a support column 2, a clamping unit 3, a first collecting and distributing tube cavity 4, a second collecting and distributing tube cavity 5, a three-way tube cavity 6, a first sealing ring 7, a second sealing ring 8, a control cavity 9, a clamping seat 10, a gear 11, a sliding plate 12, an air bag 13, a one-way valve 14, a control device 15, a branch tube cavity 16, a sealing cylinder 17, a movable ball 18, a partition plate 19, a tubular groove 20, a corrugated tube 21, a positioning cylinder 22, a sliding column 23, a spring 24, an ejector rod 25 and a transmission groove 26.

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 obtained by those skilled in the art without creative efforts based on the technical solutions of the present invention belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: a supporting device for a main structure of deep foundation pit cover excavation construction comprises a control column 1, two ends of the control column 1 are respectively provided with a supporting column 2, one end of each supporting column 2 extends into a cylindrical groove formed in the bottom surface of the control column 1, a plurality of clamping units 3 which are uniformly distributed are annularly arranged around the supporting columns 2, the clamping units 3 are arranged in the control column 1, the control column 1 is annularly provided with a plurality of uniformly distributed first collecting and distributing lumens 4 and second collecting and distributing lumens 5, the middle position of the control column 1 is provided with a three-way lumen 6, one ends of the first collecting and distributing lumens 4 and the second collecting and distributing lumens 5 are communicated with the three-way lumen 6, one end of the three-way lumen 6 is connected with the outer wall of the control column 1, the other two ends of the three-way lumen 6 are respectively communicated with the two cylindrical grooves on the control column 1, the other ends of the first collecting and distributing lumens 4 and the second collecting and distributing lumens 5 are both connected with the bottom surface of the end part of the control column 1, the end part of the control column 1 is connected with a first sealing ring 7 and a second sealing ring 8, the inner cavity of the first sealing ring 7 is sleeved with a second sealing ring 8, the first sealing ring 7 and the second sealing ring 8 have the same structure, a plurality of through holes which are uniformly distributed are annularly arranged on the first sealing ring 7 and the second sealing ring 8, the clamping unit 3 comprises a clamping seat 10, a gear 11, a sliding plate 12, an air bag 13, a one-way valve 14 and a control device 15, a plurality of transmission grooves 26 which are uniformly distributed are arranged on the side wall of the supporting column 2, the gear 11 is meshed and connected with the transmission grooves 26, one end of the clamping seat 10 is connected with the gear 11, the other end of the clamping seat 10 extends into the sliding plate 12, the air bag 13 is fixedly connected with one side of the sliding plate 12, the one side of the air bag 13, which is far away from the sliding plate 12, the one side of the one-way valve 14 is provided with the control device 15, the inner wall of the control column 1 is provided with a control cavity 9 and a branch tube cavity 16, the clamping seat 10, the gear 11, the sliding plate 12 and the air bag 13 are arranged in the control cavity 9, a branch pipe cavity 16 is communicated between the control cavity 9 and the first collecting and distributing pipe cavity 4, a one-way valve 14 is arranged in the branch pipe cavity 16, one end of a control device 15 extends into the first collecting and distributing pipe cavity 4, the other end of the control device 15 extends into the second collecting and distributing pipe cavity 5, the one-way valve 14 comprises a sealing barrel 17, a movable ball 18 and a partition plate 19, one end of the movable ball 18 is provided with the sealing barrel 17, the other end of the movable ball 18 is provided with the partition plate 19, a tubular groove 20 is arranged on the control column 1, one side of the second collecting and distributing pipe cavity 5 is communicated with a plurality of evenly distributed tubular grooves 20, the control device 15 is arranged in the tubular groove 20, the control device 15 comprises a corrugated pipe 21, a positioning barrel 22, a sliding column 23, a spring 24 and a mandril 25, one end of the corrugated pipe 21 is fixedly connected with the positioning barrel 22, the other end of the corrugated pipe 21 is fixedly connected with the sliding column 23, one end of the sliding column 23 is contacted with the spring 24, the mandril 25 is sleeved in the middle of the spring 24, one end of the mandril 25 is fixedly connected with the sliding column 23, the other end of the mandril 25 penetrates through a through hole formed in the control column 1, the end part of the mandril 25 extends into the branch tube cavity 16, and one end of the branch tube cavity 16 extends into the inner cavity of the air bag 13.

The sealing cylinder 17 and the partition plate 19 are both fixed on the inner wall of the branch pipe cavity 16, the partition plate 19 is in a circular plate shape, and a plurality of through holes which are uniformly distributed are formed in the plate body.

The sealing barrel 17 is in a cylindrical shape, the middle of the bottom surface of one side of the barrel body is provided with a cambered groove, the cambered groove of the sealing barrel 17 is matched with the movable ball 18, and one end of the control device 15 points to the middle of the sealing barrel 17.

One end of the spring 24 is supported against the sliding column 23, the sliding column 23 is movably sleeved in the inner cavity of the tubular groove 20, and the positioning cylinder 22 is fixed on the inner wall of the tubular groove 20.

The shape of the control cavity 9 is that one end of the circular plate cavity is communicated with the square plate cavity, the air bag 13 is fixed on the bottom surface of the square plate cavity of the control cavity 9, the gear 11 is arranged in the circular plate cavity of the control cavity 9 in a matching mode, and the circular plate cavity of the control cavity 9 is communicated with the columnar groove inner cavity of the control column 1.

Slide 12 has seted up the spout on for cuboid and slide 12, screens seat 10 shape is square board one end body coupling cylinder, the cylinder part of screens seat 10 extends to the spout of seting up on slide 12, a plurality of triangular prism form draw-in grooves have been seted up on the square board of screens seat 10, draw-in groove and gear 11 meshing on the screens seat 10 are connected, refer to fig. 2 and understand, the spout shape on the slide 12 is square board groove one end and connects the cylinder groove, screens seat 10 distributes to agree with in slide 12 like this, realize the connection between screens seat 10 and the slide 12, screens seat 10 can carry out the slip of certain distance on slide 12 simultaneously, when screens seat 10 blocks gear 11 like this, screens seat 10 carries out certain displacement adjustment automatically, ensure complete meshing between screens seat 10 and the gear 11.

The working principle is as follows: the invention is placed in a foundation pit, the end part of a support column 2 is supported on a baffle of the foundation pit, thus the baffle at two sides of the foundation pit is transversely supported by the invention, the baffle is understood by referring to figure 1, gas is injected at the position of a three-way pipe cavity 6 through a gas injection mechanism in the prior art, gas flow rushes into a columnar groove of a control column 1, the gas flow supports the support column 2, the support column 2 extends out from the control column 1 until the support column 2 is supported on the baffle of the foundation pit, in the process, a through hole on a sealing ring I7 is required to be aligned with a collecting and distributing pipe cavity I4, a through hole on a sealing ring II 8 is required to be aligned with a collecting and distributing pipe cavity II 5, the collecting and distributing pipe cavity I4 and the collecting and distributing pipe cavity II 5 are ensured to be in an unblocked state, partial gas flow in the three-way pipe cavity 6 is diffused into the collecting and distributing pipe cavity I4 and the collecting and distributing pipe cavity II 5, once the sealing ring II 8 blocks the end part of the collecting and distributing pipe cavity II 5, the gas flow in the collecting and distributing pipe cavity II 5 cannot be discharged outside, and the gas flow enters an air bag 13, the air bag 13 deforms and expands to jack the sliding plate 12, and then the control seat 10 is in meshed connection with the gear 11, so the gear 11 cannot rotate, because the one-way valve 14 plays a one-way flow guiding effect, if gas in the air bag 13 needs to be discharged, the gear 11 can rotate, namely the control column 1 does not control the positioning support column 2 any more, at the moment, the sealing ring I7 needs to be rotated, the sealing ring I7 plugs the exhaust end part of the first collecting and distributing tube cavity 4, so the gas in the first collecting and distributing tube cavity 4 is poked into the corrugated tube 21, the corrugated tube 21 deforms and expands to jack the sliding column 23, the sliding column 23 moves to drive the ejector rod 25, the ejector rod 25 jacks the movable ball 18, the movable ball 18 is separated from the sealing cylinder 17, and then the gas in the air bag 13 can be discharged.

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 deep basal pit lid digs construction major structure strutting arrangement, includes control post (1), its characterized in that: the both ends of control post (1) respectively are provided with a support column (2), support column (2) one end extends to the column groove of seting up on control post (1) bottom surface, encircle around support column (2) and be equipped with a plurality of evenly distributed's screens unit (3), screens unit (3) set up in control post (1), control post (1) is fitted with a contraceptive ring and is equipped with a plurality of evenly distributed's collection and distribution lumen one (4) and collection and distribution lumen two (5), tee bend lumen (6) have been seted up to the middle part position of control post (1), the one end of collection and distribution lumen one (4) and collection and distribution lumen two (5) all communicates with tee bend lumen (6), the one end and the control post (1) outer wall connection of tee bend lumen (6), two other tip of tee bend lumen (6) respectively with two column groove intercommunications on control post (1), collection and distribution lumen one (4) and collection and distribution lumen two (5) the other end connection of other end all with control post bottom surface (1) The end part position of the control column (1) is connected with a first sealing ring (7) and a second sealing ring (8), the inner cavity of the first sealing ring (7) is sleeved with the second sealing ring (8), the first sealing ring (7) and the second sealing ring (8) have the same structure, a plurality of through holes which are uniformly distributed are arranged on the first sealing ring (7) and the second sealing ring (8), the clamping unit (3) comprises a clamping seat (10), a gear (11), a sliding plate (12), an air bag (13), a one-way valve (14) and a control device (15), a plurality of transmission grooves (26) which are uniformly distributed are formed in the side wall of the support column (2), the gear (11) and the transmission grooves (26) are meshed and connected, one end of the clamping seat (10) is connected with the gear (11), the other end of the clamping seat (10) extends into the sliding plate (12), and the air bag (13) is fixedly connected to one side of the sliding plate (12), one side of the air bag (13) far away from the sliding plate (12) is provided with a check valve (14), one side of the check valve (14) is provided with a control device (15), the inner wall of the control column (1) is provided with a control cavity (9) and a branch pipe cavity (16), the control cavity (9) is internally provided with a clamping seat (10), a gear (11), the sliding plate (12) and the air bag (13), the branch pipe cavity (16) is communicated between the control cavity (9) and the first collecting and distributing pipe cavity (4), the check valve (14) is arranged in the branch pipe cavity (16), one end of the control device (15) extends into the first collecting and distributing pipe cavity (4), the other end of the control device (15) extends into the second collecting and distributing pipe cavity (5), the check valve (14) comprises a sealing barrel (17), a movable ball (18) and a partition plate (19), one end of the movable ball (18) is provided with a sealing barrel (17), the other end of the movable ball (18) is provided with a partition plate (19), a tubular groove (20) is formed in the control column (1), one side of the second collecting and distributing tube cavity (5) is communicated with the tubular grooves (20) which are uniformly distributed, the control device (15) is arranged in the tubular grooves (20), the control device (15) comprises a corrugated tube (21), a positioning tube (22), a sliding column (23), a spring (24) and an ejector rod (25), one end of the corrugated tube (21) is fixedly connected with the positioning tube (22), the other end of the corrugated tube (21) is fixedly connected with the sliding column (23), one end of the sliding column (23) is contacted with the spring (24), the middle part of the spring (24) is sleeved with the ejector rod (25), one end of the ejector rod (25) is fixedly connected with the sliding column (23), the other end of the ejector rod (25) penetrates through a through hole formed in the control column (1), and the end part of the ejector rod (25) extends into the branch tube cavity (16), one end of a branch pipe cavity (16) extends into an inner cavity of an air bag (13), a sealing barrel (17) and a partition plate (19) are fixed on the inner wall of the branch pipe cavity (16), the partition plate (19) is in a circular plate shape, a plurality of through holes are uniformly distributed on a plate body, the sealing barrel (17) is in a circular cylinder shape, an arc groove is formed in the middle of the bottom surface of one side of the barrel body, the arc groove of the sealing barrel (17) is matched with a movable ball (18), one end of a control device (15) points to the middle of the sealing barrel (17), one end of a spring (24) is supported on a sliding column (23), the sliding column (23) is movably sleeved in the inner cavity of a tubular groove (20), a positioning barrel (22) is fixed on the inner wall of the tubular groove (20), the control cavity (9) is in a circular plate cavity shape, one end of the circular plate cavity is communicated with a square plate cavity, the air bag (13) is fixed on the bottom surface of the square plate cavity of the control cavity (9), gear (11) agree with to set up in the disc chamber of control chamber (9), and the disc chamber of control chamber (9) and the column inslot chamber intercommunication of control post (1), slide (12) have been seted up the spout on for cuboid and slide (12), screens seat (10) shape is square board one end body coupling cylinder, and the cylinder part of screens seat (10) extends to the spout of seting up on slide (12), has seted up a plurality of triangular prism shape draw-in grooves on the square board of screens seat (10), and draw-in groove and gear (11) meshing on screens seat (10) are connected.