CN111119261B

CN111119261B - A micro pile slip casting structure for existing building foundation reinforcement is handled

Info

Publication number: CN111119261B
Application number: CN201911385471.8A
Authority: CN
Inventors: 李跃
Original assignee: Hunan Zhicheng Construction Engineering Co ltd
Current assignee: Hunan Zhicheng Construction Engineering Co ltd
Priority date: 2019-12-29
Filing date: 2019-12-29
Publication date: 2021-05-04
Anticipated expiration: 2039-12-29
Also published as: CN111119261A

Abstract

The invention discloses a micro pile grouting structure for reinforcing an existing building foundation, which comprises a grouting pipe positioned in the pile pipe, wherein an installation pipe is fixedly installed at the lower end of the grouting pipe, the installation pipe is of a hollow structure with two communicated ends, a supporting seat is fixedly installed on the installation pipe, a micro motor is fixedly installed on the supporting seat, a driving shaft is fixedly installed at the driving end of the micro motor, a plurality of driven shafts are rotatably connected to the lower surface of the supporting seat, a transmission mechanism is installed between the driving shaft and the driven shafts, an installation seat is installed on the installation pipe through a rotating mechanism, the installation seat is annular, and connecting mechanisms are installed among the driving shaft, the driven shafts and the installation seat. Has the advantages that: whether the through hole is in the state of sheltering from is controlled to the mobilizable seat that shelters from of utilization, avoids the too much outflow of thick liquid can also prevent that the foundation soil in the ground from passing through more entering into in the stake pipe of through hole simultaneously.

Description

A micro pile slip casting structure for existing building foundation reinforcement is handled

Technical Field

The invention relates to the technical field of micro-pile grouting structures, in particular to a micro-pile grouting structure for reinforcing an existing building foundation.

Background

Can use miniature stake slip casting structure when existing building foundation carries out the foundation stabilization again, this structure is including the slip casting pipe that can reciprocate in the stake pipe, utilizes the slip casting pipe toward the intraductal slip casting of stake to pour into the thick liquid, can set up a plurality of through-holes on the stake pipe for the fastness that increases the stake pipe simultaneously, in the thick liquid part of being convenient for flowed into the foundation, can play an anchor effect to the stake pipe after the thick liquid cooling solidification of this part outflow.

But the through-hole is in the not sheltered state all the time, and the thick liquid flows out and is difficult for controlling, has still to have partial thick liquid to pass through the problem that the through-hole outwards oozes after stopping the slip casting, is in the not sheltered state all the time simultaneously and has partial foundation soil accessible through-hole entering pile intraductal problem.

Disclosure of Invention

The invention aims to solve the problems in the background art and provides a micro pile grouting structure for the existing building foundation reinforcement treatment.

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

the miniature pile grouting structure for reinforcement treatment of the existing building foundation comprises a grouting pipe located in the pile pipe, wherein an installation pipe is fixedly installed at the lower end of the grouting pipe, the installation pipe is of a hollow structure with two communicated ends, a supporting seat is fixedly installed on the installation pipe, a miniature motor is fixedly installed on the supporting seat, a driving shaft is fixedly installed at the driving end of the miniature motor, the lower surface of the supporting seat is further rotatably connected with a plurality of driven shafts, a transmission mechanism is installed between the driving shaft and the driven shafts, an installation seat is installed on the installation pipe through a rotating mechanism and is annular, and a connecting mechanism is installed among the driving shaft, the driven shafts and the installation seat;

fixed mounting has a plurality of inserted bars on the mount pad, and the terminal surface shape of inserted bar is square, the multiunit through-hole has been seted up on the stake pipe, is located with a plurality of the through-hole all is located same height, slidable mounting has the multiunit to shelter from the seat in the stake pipe, is located with a plurality of it all is located same height to shelter from the seat, and shelters from the seat corresponding with the through-hole, every shelter from and all set up a draw-in groove with inserted bar matched with on the seat.

In the above-mentioned micropile slip casting structure for existing building foundation reinforcement processing, drive mechanism comprises a plurality of drive gear and a drive belt, all fixedly cup jointed a drive gear on driving shaft, the driven shaft, a plurality of drive gear overlaps jointly and is equipped with a drive belt.

In foretell a miniature stake slip casting structure for existing building foundation reinforcement is handled, slewing mechanism supports the groove one by a plurality of supporting shoes and an annular and constitutes, annular support groove one has been seted up on the inner wall of mount pad, fixed mounting has a plurality of supporting shoes on the outer wall of installation pipe, and the supporting shoe keeps away from the one end of installation pipe and all is located annular support groove one, every all the cover is equipped with a rubber lag one on the outer wall of supporting shoe, and the difference of the groove width that the groove was supported to the thickness more than or equal to annular of rubber lag one and supporting shoe thickness.

In foretell a miniature stake slip casting structure for existing building foundation reinforcement is handled, coupling mechanism comprises an annular mounting groove, an annular rack and a plurality of gear, the annular mounting groove has been seted up to the upper surface of mount pad, fixed mounting has the annular rack on the inner wall of annular mounting groove, equal fixed mounting has a gear on driving shaft, the driven shaft, and a plurality of gears mesh with the annular rack simultaneously, the biggest linear distance between gear and the annular rack is greater than the groove width of annular mounting groove.

In the micro pile grouting structure for existing building foundation reinforcement, the inner wall of the mounting seat is fixedly pasted with the sealing ring, and the thickness of the sealing ring is larger than or equal to the linear distance between the mounting pipe and the inner wall of the mounting seat.

In foretell a miniature stake slip casting structure for existing building foundation reinforcement is handled, every equal fixed mounting has two stoppers on the sheltering seat, the stake is intraductal to be seted up a plurality of not co-altitude annular and to support the groove two, and the stopper is located corresponding annular respectively and supports the groove two, the cover is equipped with rubber lag two on the outer wall of stopper, the thickness more than or equal to annular of rubber lag two supports the difference of the groove width in groove two and stopper thickness.

In foretell a micropile slip casting structure for existing building foundation reinforcement handles, the lower fixed surface of mount pad installs a plurality of puddlers, every a plurality of through-holes have been seted up to impartial interval on the puddler, and the opening slope of through-hole sets up, the hole width of through-hole is one tenth of puddler length, the hole length of through-hole is 1.5 times of puddler width, the puddler lower extreme is located highly to be less than the height that the installation pipe lower extreme was located.

In the micro pile grouting structure for the existing building foundation reinforcement treatment, a layer of rubber pad is fixedly sleeved on the outer wall of each inserted rod.

Compared with the prior art, the invention has the advantages that:

1: utilize mobilizable seat that shelters from to control whether thick liquid flows through corresponding through-hole, can make the through-hole be in the state that is not sheltered from when the thick liquid part in the stake pipe flows through the through-hole, the thick liquid infiltration of this part outflow to the ground in, can play an anchor effect to the stake pipe after the cooling, when need not to use and play a sheltering effect to the through-hole under the initial condition, avoid the thick liquid too much outflow and prevent that the foundation soil on the ground from passing through more entering into the stake intraductal of through-hole.

2: the movement of the grouting pipe can be used for driving the inserted bar to move in the vertical direction, so that the shielding seats with different heights can be conveniently rotated, the inserted bar drives the shielding seats to rotate, the operation is simple and convenient, and whether the micro motor works or not is controlled.

3: the position of the lower end of the stirring rod is lower than the position of the lower end of the mounting pipe, and the stirring rod can rotate along with the rotation of the mounting seat, so that slurry entering the pile pipe is stirred to a certain extent.

4: the two pairs of limiting blocks in the annular supporting groove have a supporting and limiting effect, so that the shielding seat can only move along the horizontal direction, and meanwhile, the larger friction exists between the two limiting blocks, and the limiting blocks are not easy to move on the annular supporting groove II when not subjected to larger external force.

Drawings

FIG. 1 is a schematic structural diagram of a micro-pile grouting structure for existing building foundation reinforcement treatment according to the present invention;

FIG. 2 is an enlarged view of the structure of part A in FIG. 1;

FIG. 3 is an enlarged view of the structure of part B in FIG. 1;

FIG. 4 is an enlarged view of the structure of the portion C in FIG. 1;

FIG. 5 is a cross-sectional view of the shield seat portion of FIG. 1;

FIG. 6 is a top plan view of the belt portion of FIG. 1;

FIG. 7 is a top plan view of the mount portion of FIG. 1;

fig. 8 is a bottom view of the mounting seat portion of fig. 1.

In the figure: the device comprises a pile pipe 1, a grouting pipe 2, a mounting pipe 3, a supporting seat 4, a micro motor 5, a driving shaft 6, a driven shaft 7, a transmission gear 8, a transmission belt 9, a supporting block 10, a first annular supporting groove 11, a mounting seat 12, an annular mounting groove 13, an annular rack 14, a gear 15, an inserted bar 16, a through hole 17, a shielding seat 18, a clamping groove 19, a sealing ring 20, a second annular supporting groove 21, a limiting block 22 and a stirring rod 23.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-8, the micro pile grouting structure for existing building foundation reinforcement comprises a grouting pipe 2 positioned in a pile pipe 1, wherein a mounting pipe 3 is fixedly mounted at the lower end of the grouting pipe 2, the mounting pipe 3 is a hollow structure with two communicated ends, a supporting seat 4 is fixedly mounted on the mounting pipe 3, and a micro motor 5 is fixedly mounted on the supporting seat 4;

the above notable parts have the following points:

1. the micro motor 5 can adopt a common unidirectional rotation motor required by daily production, such as a micro motor used in a patent document with the patent number of CN201055858Y, and can also adopt a servo motor, such as a micro servo motor used in a patent document with the patent number of CN208366380U, but the common unidirectional rotation motor is preferably adopted.

2. The supporting seat 4 is provided with a storage battery for the normal work of the micro motor 5 and a controller for controlling the work of the micro motor, and the controller can be a plc controller.

3. The structure in this slip casting structure all installs on installation pipe 3, and installation pipe 3 can be followed slip casting pipe 2 and cut off, and removal and storage when not using of being convenient for, during the use with it fixed to slip casting pipe 2 on can.

A driving shaft 6 is fixedly mounted at the driving end of the micro motor 5, a plurality of driven shafts 7 are further rotatably connected to the lower surface of the supporting seat 4, a transmission mechanism is mounted between the driving shaft 6 and the driven shafts 7, and the driving shaft 6 can be driven to rotate together when rotating due to the arrangement of the transmission mechanism.

Of note here are: a supporting block can be installed at the lower ends of the driving shaft 6 and the driven shaft 7, the connection relation can be fixed connection or connection through rotation, then the lower surface of the supporting block is in contact with the bottom wall of the annular mounting groove 13, or an annular groove matched with the supporting block is formed in the bottom wall of the annular mounting groove 13.

The transmission mechanism consists of a plurality of transmission gears 8 and a transmission belt 9, the transmission gears 8 are fixedly sleeved on the driving shaft 6 and the driven shaft 7, the transmission belt 9 is sleeved on the plurality of transmission gears 8 together, a common belt transmission mode is adopted here, the transmission mode has the advantages of simple structure, stable transmission, buffering and vibration absorption, low manufacturing cost, no need of lubrication, easy maintenance and the like, a chain transmission mode can be adopted according to specific use, and the chain transmission mode has the advantages of high transmission efficiency and small force acting on the shaft.

The installation tube 3 is provided with an installation seat 12 through a rotating mechanism, the installation seat 12 is annular, a sealing ring 20 is fixedly adhered to the inner wall of the installation seat 12, and the thickness of the sealing ring 20 is larger than or equal to the linear distance between the installation tube 3 and the inner wall of the installation seat 12.

The lower surface fixed mounting of mount pad 12 has a plurality of puddlers 23, and puddler 23 lower extreme department is located and is less than the position of 3 lower extremes of mounting tube, can rotate along with the rotation of mount pad 12 to play certain stirring effect to the thick liquid that has entered into in the stake pipe 1.

A plurality of through-holes have been seted up to impartial interval on every puddler 23, and the opening slope of through-hole sets up, and the hole width of through-hole is one tenth of puddler 23 length, and the hole length of through-hole is 1.5 times of puddler 23 width, and puddler 23 lower extreme department highly is less than the 3 lower extreme departments of installation pipe highly of department

Slewing mechanism comprises a plurality of supporting shoes 10 and an annular support groove 11, annular support groove 11 has been seted up on the inner wall of mount pad 12, fixed mounting has a plurality of supporting shoes 10 on the outer wall of installation pipe 3, and the supporting shoe 10 is kept away from the one end of installation pipe 3 and is all located annular support groove 11, slewing mechanism's setting is to making mount pad 12 can take place relative rotation for installation pipe 3, and make installation pipe 3 indirectly play a support limiting displacement to mount pad 12 on the horizontal direction.

The outer wall of each supporting block 10 is sleeved with a first rubber protecting sleeve, and the thickness of the first rubber protecting sleeve is larger than or equal to the difference value between the groove width of the first annular supporting groove 11 and the thickness of the supporting block 10.

A connecting mechanism is arranged between the driving shaft 6, the driven shaft 7 and the mounting seat 12, the connecting mechanism consists of an annular mounting groove 13, an annular rack 14 and a plurality of gears 15, the upper surface of the mounting seat 12 is provided with the annular mounting groove 13, the inner wall of the annular mounting groove 13 is fixedly provided with the annular rack 14, the driving shaft 6 and the driven shaft 7 are both fixedly provided with the gears 15, the plurality of gears 15 are simultaneously meshed with the annular rack 14, and the maximum straight line distance between the gears 15 and the annular rack 14 is larger than the groove width of the annular mounting groove 13;

the purpose of providing a plurality of gears 15 is to apply a more stable force to the annular rack 14 at the same time, so that the rotation of the gears 15 is better utilized to rotate the mounting base 12.

A plurality of inserting rods 16 are fixedly mounted on the mounting base 12, the end faces of the inserting rods 16 are square, a layer of rubber pad is fixedly sleeved on the outer wall of each inserting rod 16, and the inserting rods 16 are arranged to adjust the positions of the shielding bases 18 according to requirements.

A plurality of groups of through holes 17 are formed in the pile tube 1, the through holes 17 in the same group are all located at the same height, a plurality of groups of shielding seats 18 are slidably mounted in the pile tube 1, the shielding seats 18 in the same group are all located at the same height, the shielding seats 18 correspond to the through holes 17, and each shielding seat 18 is provided with a clamping groove 19 matched with the inserting rod 16;

it is worth noting above that: the purpose that shelters from seat 18 and sets up is whether shelter from through-hole 17 on same height as required according to needs, can make through-hole 17 be in the state of not sheltering from when the thick liquid part in needs stake pipe 1 flows out through-hole 17, and the thick liquid that this part flows out infiltrates to the ground, can play an anchor effect to stake pipe 1 after the cooling.

Every hides and keeps off two stopper 22 of equal fixed mounting on the seat 18, sets up a plurality of not co-altitude annular support groove two 21 in the stake pipe 1, and stopper 22 is located corresponding annular support groove two 21 respectively, and annular support groove two 21 has one to stopper 22 and supports spacing effect for it can only remove along the horizontal direction to hide the seat 18, has great friction simultaneously between the two, and stopper 22 is difficult for removing on annular support groove two 21 when not receiving great external force.

The outer wall of the limiting block is sleeved with a second rubber protecting sleeve, and the thickness of the second rubber protecting sleeve is larger than or equal to the difference value between the groove width of the second annular supporting groove and the thickness of the limiting block.

Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.

In the invention, an inserting rod 16 is clamped on a corresponding shielding seat 18 in the state shown in figure 1, a micro motor 5 is turned on, the micro motor 5 directly drives a driving shaft 6 to rotate when working, the driving shaft 6 drives a plurality of driven shafts 7 to simultaneously rotate through a transmission gear 8 and a transmission belt 9, the driving shaft 6 and the driven shafts 7 rotate to drive a gear 15 fixedly connected with the driving shaft 6 and the driven shafts to rotate, the gear 15 rotates to drive an installation seat 12 to rotate through an annular rack 14, the installation seat 12 rotates to drive a corresponding shielding seat 18 to rotate through the inserting rod 16, the shielding seat 18 rotates to control whether to shield a through hole 17, so as to control whether slurry in a pile pipe 1 can flow out of the through hole 17, meanwhile, the rotation of the installation seat 12 drives a stirring rod 23 to play a role in mixing and stirring on part of the slurry entering the pile pipe 1, the micro motor 5 is firstly turned off before a grouting pipe 2 moves upwards, so that the shielding seat 18 stays at the position shown, the through hole 17 is shielded.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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. A micro-pile grouting structure for reinforcing the foundation of an existing building comprises a grouting pipe (2) positioned in a pile pipe (1), it is characterized in that the lower end of the grouting pipe (2) is fixedly provided with a mounting pipe (3), the mounting tube (3) is a hollow structure with two communicated ends, a supporting seat (4) is fixedly arranged on the mounting tube (3), a micro motor (5) is fixedly arranged on the supporting seat (4), a driving shaft (6) is fixedly arranged at the driving end of the micro motor (5), the lower surface of the supporting seat (4) is also rotationally connected with a plurality of driven shafts (7), a transmission mechanism is arranged between the driving shaft (6) and the driven shaft (7), the mounting tube (3) is provided with a mounting seat (12) through a rotating mechanism, the mounting seat (12) is annular, and connecting mechanisms are arranged among the driving shaft (6), the driven shaft (7) and the mounting seat (12);

fixed mounting has a plurality of inserted bars (16) on mount pad (12), and the terminal surface shape of inserted bar (16) is square, seted up multiunit through-hole (17) on stake pipe (1), be located with a set of a plurality of through-hole (17) all are located same height, slidable mounting has the multiunit to shelter from seat (18) in stake pipe (1), is located with a set of a plurality of shelter from seat (18) all are located same height, and shelter from seat (18) and through-hole (17) corresponding, every shelter from and all set up one on seat (18) and inserted bar (16) matched with draw-in groove (19).

2. The micro pile grouting structure for existing building foundation reinforcement processing according to claim 1, wherein the transmission mechanism is composed of a plurality of transmission gears (8) and a transmission belt (9), one transmission gear (8) is fixedly sleeved on each of the driving shaft (6) and the driven shaft (7), and the plurality of transmission gears (8) are commonly sleeved with one transmission belt (9).

3. The micro pile grouting structure for the existing building foundation reinforcement processing according to claim 1, wherein the rotating mechanism is composed of a plurality of supporting blocks (10) and a first annular supporting groove (11), the first annular supporting groove (11) is formed in the inner wall of the mounting seat (12), the plurality of supporting blocks (10) are fixedly mounted on the outer wall of the mounting pipe (3), one ends of the supporting blocks (10) far away from the mounting pipe (3) are located in the first annular supporting groove (11), a first rubber protecting sleeve is sleeved on the outer wall of each supporting block (10), and the thickness of the first rubber protecting sleeve is greater than or equal to the difference between the groove width of the first annular supporting groove (11) and the thickness of the supporting block (10).

4. The micro pile grouting structure for existing building foundation reinforcement according to claim 1, wherein the connecting mechanism is composed of an annular mounting groove (13), an annular rack (14) and a plurality of gears (15), the annular mounting groove (13) is formed in the upper surface of the mounting seat (12), the annular rack (14) is fixedly mounted on the inner wall of the annular mounting groove (13), the driving shaft (6) and the driven shaft (7) are both fixedly mounted with a gear (15), the gears (15) are meshed with the annular rack (14) at the same time, and the maximum linear distance between the gear (15) and the annular rack (14) is greater than the groove width of the annular mounting groove (13).

5. The micro pile grouting structure for the existing building foundation reinforcement processing according to claim 1, characterized in that a sealing ring (20) is fixedly adhered to the inner wall of the mounting seat (12), and the thickness of the sealing ring (20) is greater than or equal to the linear distance between the mounting pipe (3) and the inner wall of the mounting seat (12).

6. The micro pile grouting structure for the existing building foundation reinforcement processing according to claim 1, wherein two limiting blocks (22) are fixedly installed on each shielding seat (18), a plurality of second annular supporting grooves (21) with different heights are formed in the pile tube (1), the limiting blocks (22) are respectively located in the corresponding second annular supporting grooves (21), a second rubber protecting sleeve is sleeved on the outer wall of each limiting block (22), and the thickness of the second rubber protecting sleeve is greater than or equal to the difference between the groove width of the second annular supporting groove (21) and the thickness of the limiting block (22).

7. The micropile slip casting structure for the existing building foundation reinforcement processing according to claim 1, wherein a plurality of stirring rods (23) are fixedly installed on the lower surface of the installation base (12), a plurality of through holes are formed in each stirring rod (23) at equal intervals, openings of the through holes are obliquely arranged, the hole width of each through hole is one tenth of the length of the corresponding stirring rod (23), the hole length of each through hole is 1.5 times of the width of the corresponding stirring rod (23), and the lower end of each stirring rod (23) is lower than the lower end of the corresponding installation pipe (3).

8. The micro-pile grouting structure for the existing building foundation reinforcement treatment according to claim 1, wherein a rubber pad is fixedly sleeved on the outer wall of each inserting rod (16).