CN111778989A

CN111778989A - Inner supporting structure for pit bias problem in deep and shallow foundation pit

Info

Publication number: CN111778989A
Application number: CN202010551744.8A
Authority: CN
Inventors: 章秀芝
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2020-10-16

Abstract

The invention discloses an internal support structure for solving the problem of pit bias in deep and shallow foundation pits, which comprises a bottom plate, circular grooves, compression springs and a workbench, wherein the circular grooves are formed in the left side and the right side of the lower end of the bottom plate, the compression springs are fixedly connected to the lower end of the bottom plate and the two sides close to the circular grooves, the upper ends of the compression springs are fixedly connected with fixing legs, and the upper ends of the fixing legs extend into the compression springs and are fixedly connected with arc-shaped blocks. This inner support structure of hole bias voltage problem in deep and shallow foundation ditch when using, through the fixed block, the cooperation of bull stick and activity leg isotructure is used, thereby the effect of convenient removal has been reached, through the circular slot, compression spring and fixed leg isotructure's cooperation is used, thereby the stable effect of support has been reached, through the spacing groove, the cooperation of movable rod and contact plate isotructure is used, thereby the effect that the suitability is strong has been reached, through the activity post, the cooperation of push rod and sleeve block isotructure is used, thereby the convenient effect of centre gripping has been reached.

Description

Inner supporting structure for pit bias problem in deep and shallow foundation pit

Technical Field

The invention belongs to the technical field of foundation pit bias, and particularly relates to an inner support structure for solving the problem of pit bias in deep and shallow foundation pits.

Background

With the development of urbanization, large-scale underground comprehensive transportation hub engineering is produced according to the characteristics of urban space forms, passenger traveling and the like in all cities, excavation of deep foundation pits is involved in most of the current construction processes, and piles (or walls) and inner support systems are mostly adopted in the deep foundation pits. Under the conventional condition, in order to reduce the safety risk of the foundation pit, the principle of firstly deep and then shallow is mostly adopted for supporting and excavating; in the actual process, the foundation pit support and excavation are carried out according to the principle of shallow construction and then deep construction or synchronous construction according to different project owners, construction periods and use requirements.

Based on the structure, the problem of bias voltage is caused when the support structure of the foundation pit in the deep and shallow regions bears horizontal force in part of the whole foundation pit engineering. In the prior art, a plurality of inner supporting structures are required to be additionally arranged in a foundation pit under most conditions by adopting a shallow-to-deep foundation pit excavation method, a supporting bracket is additionally arranged at the bottom of a shallow foundation pit in the conventional device, then a horizontal inner supporting structure is additionally arranged between the bracket and a deep foundation pit, and the problem of pit bias voltage in the deep and shallow foundation pit is solved through the supporting bracket and the horizontal inner supporting structure.

Therefore, an inner supporting structure for the pit bias problem in deep and shallow foundation pits is proposed to solve the problem.

Disclosure of Invention

The invention aims to solve the problems of high construction difficulty, easy inclination and poor applicability, and provides an inner support structure for solving the problem of pit bias in a deep and shallow foundation pit, which is convenient to move, stable in support, strong in applicability and convenient to clamp.

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

the utility model provides an inner supporting structure for hole bias voltage problem in dark and shallow foundation ditch, includes bottom plate, circular slot, compression spring and workstation, the circular slot has been seted up to the left and right sides of bottom plate lower extreme, the lower extreme of bottom plate and the both sides fixedly connected with compression spring who is close to the circular slot, compression spring's upper end fixedly connected with fixed leg, the inside and the fixedly connected with arc piece of compression spring are stretched into to the upper end of fixed leg, the upper end fixedly connected with workstation of bottom plate, supporting mechanism is installed to the inboard of bottom plate, the left and right sides fixedly connected with fixed column of workstation upper end, left side contact mechanism is installed on the right side of fixed column, left side the left side fixedly connected with of fixed column pushes away the.

Preferably, the supporting mechanism comprises logical groove, pneumatic cylinder, telescopic link, fixed block, bull stick, activity leg and gyro wheel, lead to the groove and set up the inner wall at the bottom plate, pneumatic cylinder fixed connection is at leading to the inslot, the opposite side at the pneumatic cylinder is installed to the telescopic link, the one end of pneumatic cylinder is kept away from at the telescopic link to fixed block fixed connection, the lower extreme fixed connection of telescopic link is on the bull stick, activity leg swing joint is at the other end of bull stick, the upper end swing joint of activity leg is at the lower extreme of bottom plate, the lower extreme and the gyro wheel fixed connection of activity leg.

Preferably, the contact mechanism comprises a fixing base, a limiting block, a limiting groove, a movable rod, a contact plate and a telescopic spring, the fixing base is fixedly connected to the inner side of the fixing column, the limiting block is fixedly connected to the front side of the fixing base, the limiting groove is formed in the left side of the movable rod and is sleeved on the outer wall of the limiting block, the contact plate is movably connected to one end, away from the fixing base, of the movable rod, the left end of the spring is fixedly connected to the fixing column, and the right end of the spring is fixedly connected to the left side of the contact plate.

Preferably, the upper end of workstation has seted up the spout, the upper surface sliding connection of spout has the pulley, the upper end swing joint of pulley has the activity post, adjustment mechanism is installed on the right side of activity post.

Preferably, adjustment mechanism comprises push rod, cover block, threaded rod, commentaries on classics, the left end swing joint of push rod is on the outer wall of activity post, the cover block rotates the other end of connecting at the push rod, threaded rod threaded connection is on the inner wall of cover block, the upper end of threaded rod with change fixed connection, the lower extreme swing joint of threaded rod is on the workstation.

Preferably, the circular groove is arranged corresponding to the arc-shaped block, and the width of the circular groove is larger than that of the arc-shaped block.

Preferably, the vertical height of the movable leg and the roller is greater than the height of the fixed leg and the arc-shaped block.

Preferably, the number of the movable rods is two, one end of each movable rod is sleeved on the limiting block through a limiting groove, and the width of the back face of the limiting block is smaller than that of the front face of the limiting block.

Preferably, the left and right inner walls of the sleeve block are provided with threaded holes, and the threaded rod is matched with the threaded holes in the sleeve block.

Preferably, the fixed post is aligned with the level of the upper end of the movable post.

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

1. this inner support structure of hole bias voltage problem in dark shallow foundation ditch when using, through the fixed block, the bull stick, the cooperation of activity leg and gyro wheel isotructure is used, it drives the telescopic link extension to start hydraulic cylinder, make the fixed block move to keeping away from the pneumatic cylinder direction gradually, the fixed block drives the bull stick of downside and takes place to remove afterwards, the bull stick drives the activity leg rotation of the other end, it is rotatory to vertical direction to drive the gyro wheel of downside until the activity leg, at this moment the device is fixed subaerial through activity leg and gyro wheel, promote and push away the handle, thereby the effect of convenient removal has been reached.

2. This inner support structure of hole biasing problem in depth and shallow foundation ditch uses through the cooperation of circular slot, compression spring, fixed leg and arc piece isotructure, and when the fixed leg supported the device, compression spring was compressed gradually, and the arc piece of fixed leg upper end inserts the circular slot on the bottom plate gradually simultaneously for the device is fixed, and compression spring's existence plays the effect of buffering, prevents to move and leads to the device to damage at the excessive speed, thereby has reached and has supported stable effect.

3. This inner support structure of hole biasing problem in deep and shallow foundation ditch uses through the cooperation of spacing groove, movable rod, contact plate and expanding spring isotructure for the movable rod can rotate on the fixing base, has restricted the motion interval of movable rod simultaneously, because expanding spring's existence makes the movable rod have the motion trend of inboard all the time, makes the support body pressed from both sides tightly, thereby has reached the strong effect of suitability.

4. This inner supporting structure of hole bias voltage problem in deep and shallow foundation ditch uses, through the cooperation of movable post, the push rod, nested piece and threaded rod isotructure, it is rotatory to driving the threaded rod to rotate to change, the threaded rod drives nested piece downstream for the push rod of both sides is rotatory to the downside gradually, the push rod drives movable post simultaneously and is close to the fixed column direction gradually, make the outside of movable post promote the support body simultaneously, reach the contact plate to the left end of support body, thereby reached the convenient effect of centre gripping.

Drawings

FIG. 1 is a schematic diagram of a connection structure of an inner support structure for pit biasing problem in a deep and shallow foundation pit according to the present invention;

FIG. 2 is an enlarged view of the structure of the fixing leg, the arc block and the circular groove;

FIG. 3 is an enlarged view of the connection of the movable leg and the roller during operation;

FIG. 4 is an enlarged view of the connection of the movable leg and the roller when the structure is stored;

FIG. 5 is an enlarged view of the connection structure at area A in FIG. 1;

fig. 6 is an enlarged view of the connection structure of the contact mechanism.

In the figure: 1 bottom plate, 2 circular grooves, 3 compression springs, 4 fixed legs, 5 arc-shaped blocks, 6 workbenches, 7 supporting mechanisms, 701 through grooves, 702 hydraulic cylinders, 703 telescopic rods, 704 fixed blocks, 705 rotating rods, 706 movable legs, 707 idler wheels, 8 fixed columns, 9 contact mechanisms, 901 fixed seats, 902 limit blocks, 903 limit grooves, 904 movable rods, 905 contact plates, 906 telescopic springs, 10 sliding grooves, 11 pulleys, 12 movable columns, 13 push rods, 14 sleeve blocks, 15 threaded rods, 16 rotating handles, 17 pushing handles, 18 support bodies and 19 adjusting mechanisms.

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.

Referring to fig. 1 to 6, an inner supporting structure for the problem of bias voltage of a pit in a deep and shallow foundation pit comprises a bottom plate 1, circular grooves 2, compression springs 3 and a workbench 6, wherein the circular grooves 2 are formed in the left side and the right side of the lower end of the bottom plate 1, the compression springs 3 are fixedly connected to the lower end of the bottom plate 1 and the two sides close to the circular grooves 2, fixing legs 4 are fixedly connected to the upper ends of the compression springs 3, the upper ends of the fixing legs 4 extend into the compression springs 3 and are fixedly connected with arc-shaped blocks 5, the circular grooves 2 are arranged corresponding to the arc-shaped blocks 5, the width of the circular grooves 2 is larger than that of the arc-shaped blocks 5, the height of the fixing legs 4 can be adjusted due to the design of the compression springs 3, when the fixing legs 4 support the device, the compression springs 3 are gradually compressed, meanwhile, the arc-shaped blocks 5 at the upper ends of the fixing legs 4 are gradually inserted into the circular, prevent to move and lead to the device to damage at the excessive speed, the upper end fixedly connected with workstation 6 of bottom plate 1, supporting mechanism 7 is installed to the inboard of bottom plate 1, the left and right sides fixedly connected with fixed column 8 of workstation 6 upper end, the level of fixed column 8 and activity post 12 upper end aligns, contact mechanism 9 is installed on the right side of left side fixed column 8, the left side fixedly connected with of left side fixed column 8 pushes away 17.

The supporting mechanism 7 is composed of a through groove 701, a hydraulic cylinder 702, a telescopic rod 703, a fixed block 704, a rotating rod 705, a movable leg 706 and a roller 707, the through groove 701 is arranged on the inner wall of the bottom plate 1, the hydraulic cylinder 702 is fixedly connected in the through groove 701, the hydraulic cylinder 702 is in the model of HSGF280 ×, 200-, when the movable leg 706 and the roller 707 support the ground, the fixed leg 4 is gradually raised and the device is moved over the ground by the roller 707.

The contact mechanism 9 is composed of a fixed seat 901, a limit block 902, a limit groove 903, a movable rod 904, a contact plate 905 and a telescopic spring 906, the fixed seat 901 is fixedly connected to the inner side of a fixed column 8, the limit block 902 is fixedly connected to the front side of the fixed seat 901, the limit groove 903 is arranged on the left side of the movable rod 904, the limit groove 903 is sleeved on the outer wall of the limit block 902, the movable rods 904 are totally two, one end of each movable rod 904 is sleeved on the limit block 902 through the limit groove 903, the width of the back side of the limit block 902 is smaller than that of the front side, the limit groove 903 and the limit block 902 are designed, so that the movable rods 904 can rotate on the fixed seat 901, the motion interval of the movable rods 904 is limited, the contact plate 905 is movably connected to one end of the movable rod 904 far away from the fixed seat 901, the left end of the telescopic spring 906, the design of the telescopic spring 906 not only enables the movable rod 904 to return to the original position after rotating, but also enables the telescopic spring 906 to be compressed after the bracket body 18 is clamped, and then always provides an inward reaction force for the contact plate 905, so that the clamping work is stable.

Spout 10 has been seted up to the upper end of workstation 6, the last surface sliding connection of spout 10 has pulley 11, pulley 11's upper end swing joint has movable post 12, pulley 11 and spout 10's design makes movable post 12 can be at the light motion of horizontal direction, also make movable post 12 movement interval remain stable simultaneously, adjustment mechanism 19 is installed on the right side of movable post 12, adjustment mechanism 19 is by push rod 13, pocket block 14, threaded rod 15, it constitutes to change handle 16, the left end swing joint of push rod 13 is on the outer wall of movable post 12, pocket block 14 rotates the other end of connecting at push rod 13, threaded rod 15 threaded connection is on the inner wall of pocket block 14, threaded hole has been seted up to the inner wall about pocket block 14, and threaded rod 15 is identical with the screw hole in pocket block 14, the upper end and the commentaries on classics handle 16 fixed connection of threaded rod 15, the lower extreme swing joint of threaded rod 15 is.

The operating principle of the present invention will now be described as follows:

when the inner support structure for the pit bias problem in the deep and shallow foundation pit is used, when the device needs to be moved, a user starts the hydraulic cylinder 702, the hydraulic cylinder 702 drives the telescopic rod 703 to extend, so that the telescopic rod 703 drives the fixed block 704 at the other end to gradually move in the direction away from the hydraulic cylinder 702, then the fixed block 704 drives the rotating rod 705 at the lower side to move, and simultaneously drives the movable leg 706 at the other end of the rotating rod 705 to gradually rotate until the movable leg 706 drives the roller 707 at the lower side to rotate to the vertical direction, at this time, the fixed leg 4 is gradually lifted, the roller 707 gradually contacts the ground, at this time, the device is fixed on the ground through the movable leg 706 and the roller 707, and the pushing handle 17 is pushed;

when the bracket body 18 needs to be fixed, the bracket body 18 is placed between the fixed post 8 and the movable post 12, the user rotates the rotating handle 16, at the moment, the rotating handle 16 drives the threaded rod 15 to rotate, at the moment, the threaded rod 15 gradually drives the sleeve block 14 to move downwards, so that the push rods 13 on the left side and the right side of the sleeve block 14 gradually rotate downwards, meanwhile, the push rod 13 drives the movable column 12 at the other end to gradually move towards the fixed column 8, at the moment, the movable column 12 slides in the sliding groove 10 on the workbench 6 through the pulley 11, while causing the outer side of the movable post 12 to push the holder body 18 until the left end of the holder body 18 contacts the contact plate 905, at this time, the contact plate 905 is applied with an outward force, so that the contact plate 905 provides the limiting groove 903 and the limiting block 902 to rotate outward, at the same time, the compression springs 906 at the other end of the contact plate 905 are compressed, and the holder body 18 is gradually clamped.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. An inner supporting structure for the problem of pit bias in deep and shallow foundation pits comprises a bottom plate (1), circular grooves (2), compression springs (3) and a workbench (6), and is characterized in that the circular grooves (2) are formed in the left side and the right side of the lower end of the bottom plate (1), the compression springs (3) are fixedly connected to the lower end of the bottom plate (1) and the two sides close to the circular grooves (2), fixing legs (4) are fixedly connected to the upper ends of the compression springs (3), the upper ends of the fixing legs (4) extend into the compression springs (3) and are fixedly connected with arc-shaped blocks (5), the workbench (6) is fixedly connected to the upper end of the bottom plate (1), a supporting mechanism (7) is installed on the inner side of the bottom plate (1), fixing columns (8) are fixedly connected to the left side and the right side of the fixing columns (8) on the left side, the left side of the left side fixed column (8) is fixedly connected with a push handle (17).

2. The internal support structure for the pit biasing problem in deep and shallow foundation pits according to claim 1, wherein the support mechanism (7) is composed of a through groove (701), a hydraulic cylinder (702), a telescopic rod (703), a fixed block (704), a rotating rod (705), a movable leg (706) and a roller (707), the through groove (701) is formed in the inner wall of the bottom plate (1), the hydraulic cylinder (702) is fixedly connected in the through groove (701), the telescopic rod (703) is installed on the other side of the hydraulic cylinder (702), the fixed block (704) is fixedly connected to one end of the telescopic rod (703) far away from the hydraulic cylinder (702), the lower end of the telescopic rod (703) is fixedly connected to the rotating rod (705), the movable leg (706) is movably connected to the other end of the rotating rod (705), and the upper end of the movable leg (706) is movably connected to the lower end of the bottom plate (1), the lower end of the movable leg (706) is fixedly connected with a roller (707).

3. An internal support structure for pit biasing problems in deep and shallow foundation pits as claimed in claim 1, it is characterized in that the contact mechanism (9) consists of a fixed seat (901), a limit block (902), a limit groove (903), a movable rod (904), a contact plate (905) and a telescopic spring (906), the fixed seat (901) is fixedly connected with the inner side of the fixed column (8), the limit block (902) is fixedly connected with the front surface of the fixed seat (901), the limit groove (903) is arranged at the left side of the movable rod (904), the limiting groove (903) is sleeved on the outer wall of the limiting block (902), the contact plate (905) is movably connected with one end of the movable rod (904) far away from the fixed seat (901), the left end of the extension spring (906) is fixedly connected to the fixed column (8), the right end of the extension spring (906) is fixedly connected to the left side of the contact plate (905).

4. The internal support structure for the pit biasing problem in deep and shallow foundation pits according to claim 1, wherein a sliding groove (10) is formed in the upper end of the workbench (6), a pulley (11) is slidably connected to the upper surface of the sliding groove (10), a movable column (12) is movably connected to the upper end of the pulley (11), and an adjusting mechanism (19) is installed on the right side of the movable column (12).

5. The internal support structure for pit biasing problem in deep and shallow foundation pit as claimed in claim 4, characterized in that, said adjusting mechanism (19) is composed of push rod (13), sleeve block (14), threaded rod (15) and rotating handle (16), the left end of said push rod (13) is movably connected on the outer wall of the movable column (12), said sleeve block (14) is rotatably connected on the other end of the push rod (13), said threaded rod (15) is screwed on the inner wall of the sleeve block (14), the upper end of said threaded rod (15) is fixedly connected with the rotating handle (16), and the lower end of said threaded rod (15) is movably connected on the working table (6).

6. The internal support structure for pit biasing problem in deep and shallow foundation pit as claimed in claim 1, characterized in that the circular slot (2) is arranged corresponding to the position of the arc-shaped block (5), and the width of the circular slot (2) is larger than the width of the arc-shaped block (5).

7. The internal support structure for pit biasing problem in deep and shallow foundation pit as claimed in claim 2, wherein the vertical height of the movable leg (706) and the roller (707) is larger than the height of the fixed leg (4) and the arc block (5).

8. The internal support structure for pit biasing problem in deep and shallow foundation pit as claimed in claim 3, characterized in that, there are two movable rods (904), one end of two movable rods (904) is sleeved on a stopper (902) through a stopper groove (903), and the width of the back of the stopper (902) is smaller than that of the front.

9. The internal support structure for pit biasing problem in deep and shallow foundation pit as claimed in claim 5, characterized in that the left and right inner walls of the sleeve block (14) are threaded, and the threaded rod (15) is matched with the threaded hole in the sleeve block (14).

10. An internal support structure for pit biasing problems in deep and shallow foundation pits as claimed in claim 5, said fixed columns (8) are aligned with the horizontal height of the upper ends of the movable columns (12).