CN112681316A

CN112681316A - Deep basal pit underground structure reverse construction method steel pipe column positioner

Info

Publication number: CN112681316A
Application number: CN202011562429.1A
Authority: CN
Inventors: 刘汉景; 刘超; 李镇麟; 马良; 任攀
Original assignee: China Railway Tianfeng Construction Engineering Co Ltd
Current assignee: China Railway Tianfeng Construction Engineering Co Ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-04-20

Abstract

The application relates to a deep foundation pit underground structure reverse construction method steel pipe column positioning device which comprises a base, wherein positioning plates are arranged on the base at intervals, the positioning plates are arranged in a vertical reciprocating sliding mode, a supporting frame is arranged between the positioning plates and the base and used for enabling the positioning plates to be arranged in a vertical reciprocating sliding mode, and a driving assembly used for controlling a bottom plate to slide vertically is arranged on the base; the steel pipe column positioning device is characterized in that a first through hole matched with the diameter of a pile hole is formed in the base, a second through hole is formed in the position, corresponding to the first through hole, of the positioning plate, the steel pipe column penetrates through the first through hole and the second through hole, a plurality of groups of clamping assemblies are circumferentially arranged in the second through hole of the positioning plate, and the plurality of groups of clamping assemblies clamp the steel pipe column to enable the steel pipe column to be located in the center positions of the first through hole and the second through hole. It is convenient for can guarantee the straightness that hangs down of steel-pipe column and be applicable to less construction space's effect.

Description

Deep basal pit underground structure reverse construction method steel pipe column positioner

Technical Field

The application relates to the technical field of building construction, in particular to a deep foundation pit underground structure reverse construction method steel pipe column positioning device.

Background

In the deep foundation pit basement structure reverse construction method, the structural columns of the common building need to be constructed before foundation pit excavation. When the structural column adopts a steel pipe column form, the integral structure is that a cast-in-place pile is arranged at the bottom of a foundation pit, a steel pipe upright is arranged above the bottom of the foundation pit, and the steel pipe upright is inserted into the cast-in-place pile at the bottom for about 3 m.

The method has the advantages that the requirement on the perpendicularity of the building pile foundation steel pipe column is high in the existing related technical scheme, a pile drilling hole is adopted in the existing common construction process of the steel pipe column, I-shaped steel is adopted as a cross brace for hoisting construction in an orifice, the lowering precision of the steel pipe column is not easy to control during construction, and the problems that the perpendicularity of the steel stand column cannot meet the requirement and the like easily occur after construction; and some construction methods need to use large-scale hoisting devices, and are extremely inconvenient to operate in narrow construction spaces.

Disclosure of Invention

In order to guarantee the straightness that hangs down of steel-pipe column and be applicable to less construction space, this application provides a deep basal pit underground structure reverse construction method steel-pipe column positioner.

The application provides a deep basal pit underground structure reverse construction method steel-pipe column positioner adopts following technical scheme:

a steel pipe column positioning device for a deep foundation pit underground structure reverse construction method comprises a base, wherein positioning plates are arranged on the base at intervals, the positioning plates are arranged in a vertical reciprocating sliding mode, a supporting frame is arranged between the positioning plates and the base and used for enabling the positioning plates to be arranged in a reciprocating sliding mode in the vertical direction, and a driving assembly used for controlling the positioning plates to slide in the vertical direction is arranged on the base; the steel pipe column positioning device is characterized in that a first through hole matched with the diameter of a pile hole is formed in the base, a second through hole is formed in the position, corresponding to the first through hole, of the positioning plate, the steel pipe column penetrates through the first through hole and the second through hole, a plurality of groups of clamping assemblies are circumferentially arranged in the second through hole of the positioning plate, and the plurality of groups of clamping assemblies clamp the steel pipe column to enable the steel pipe column to be located in the center positions of the first through hole and the second through hole.

Through adopting above-mentioned technical scheme, put the department through the central point of a plurality of groups centre gripping subassemblies with the steel-pipe column centre gripping at the second through-hole, because the central point of second through-hole and first through-hole puts mutual correspondence, the locating plate is when vertical down sliding, the locating plate area steel-pipe column enters into in the first through-hole and transfers to the stake hole, the locating plate can only directional vertical slip under the effect of support frame simultaneously, from this can realize steel-pipe column directional, accurate transfer to the stake hole in.

The present application may be further configured in a preferred example to: the positioning plate is provided with a hidden groove in the inner wall of the second through hole, the notch of the hidden groove is communicated with the second through hole, the clamping assembly comprises a clamping arc plate and a threaded rod, the clamping arc plate is horizontally arranged in the hidden groove in a sliding mode, one end of the threaded rod is connected with the positioning plate in a threaded mode, extends into the hidden groove and is connected with the outer curved surface of the clamping arc plate in a rotating mode, the inner curved surface of the clamping arc plate is attached to the outer wall of the steel pipe column, and a directional assembly used for enabling the clamping arc plate to horizontally slide is arranged in the hidden groove.

Through adopting above-mentioned technical scheme, rotate the threaded rod, the threaded rod is pushing away or is pulling the arc grip block and is hiding the inslot and slide with locating plate screw thread transmission simultaneously, because threaded connection between threaded rod and the locating plate, when not having the exogenic action on the threaded rod, can keep fixed after the arc grip block removes, according to the diameter size of steel-pipe column, can control the stroke of arc grip block simultaneously to carry out the centre gripping to the steel-pipe column of different diameters sizes.

The present application may be further configured in a preferred example to: the locating component comprises a locating sleeve and a locating rod, wherein one end of the locating sleeve is fixedly arranged on the outer curved surface of the clamping arc-shaped plate, the other end of the locating sleeve extends towards the direction of the hidden groove, the locating sleeve is sleeved in the locating sleeve and slides in a reciprocating mode along the axis direction of the locating sleeve, and one end of the locating rod, which is positioned outside the locating sleeve, is fixedly connected with the bottom wall of the hidden groove towards the groove opening of the locating sleeve.

Through adopting above-mentioned technical scheme, the arc grip block is hiding the inslot reciprocating sliding while, and the arc grip block area position sleeve pipe reciprocating sliding is flexible to be set up on the locating lever, because the position sleeve pipe can only directional flexible on the locating lever, consequently makes the arc grip block also can only directional slip, and can not take place to rotate along with the rotation of threaded rod.

The present application may be further configured in a preferred example to: the middle part of the positioning rod is provided with a positioning hole along the axis direction, one end of the threaded rod penetrates through the positioning hole and the positioning sleeve and is in rotary connection with the outer curved surface of the clamping arc-shaped plate, and the threaded rod, the positioning sleeve and the positioning rod are coaxially arranged.

Through adopting above-mentioned technical scheme, the threaded rod is worn to locate in the locating hole of locating lever for coaxial line setting between threaded rod, locating lever and the position sleeve pipe three, the threaded rod is pushing away or is pulling arc grip block when removing, under the circumstances of using a set of locating lever and position sleeve pipe, can guarantee the directional slip of arc grip block.

The present application may be further configured in a preferred example to: the utility model discloses a scale, including locating sleeve, locating plate, threaded rod, locating groove, locating sleeve, connecting rod, can dismantle on the locating plate and be connected with the scale, the extending direction of scale is unanimous with the axis direction of threaded rod, the constant head tank has been seted up along the extending direction that is on a parallel with the scale on the locating plate, the constant head tank communicates the setting with hiding the groove each other, the last connecting rod that stretches out the constant head tank that sets firmly of position sleeve, the one end that the connecting rod is located the constant head tank outside sets firmly the.

Through adopting above-mentioned technical scheme, the arc grip block takes the position sleeve synchronous hiding the inslot removal when removing, take the connecting rod to remove in the constant head tank when the position sleeve removes, the connecting rod takes the slider to slide on the scale, through the indicative function of slider on the scale, the removal stroke of control arc grip block that can be indirect, thereby the removal stroke of four arc grip blocks of control keeps unanimous, further guarantee to put the department with the central point of steel-pipe column centre gripping at the second through-hole.

The present application may be further configured in a preferred example to: the fixed column of vertical setting has set firmly on the locating plate, the one end that the locating plate was kept away from to the fixed column has set firmly first fixture block, set up the first draw-in groove with scale looks adaptation on the first fixture block, it is provided with the removal post of vertical setting to slide to the fixed column direction on the locating plate, the one end that the locating plate was kept away from to the removal post has set firmly the second fixture block, the second draw-in groove with scale looks adaptation is seted up to the second fixture block, the scale inlays and locates in first draw-in groove and the second draw-in groove, be provided with on the locating plate and be used for removing the fixed establishment of after-fixing to the removal post.

Through adopting above-mentioned technical scheme, the one end of scale inlays in the first draw-in groove of locating first fixture block, tentatively fixes the scale, and the removal post that the rethread slip set up makes the removal post slide toward one side of fixed column, until inlaying the second draw-in groove on the second fixture block mutually with the scale and establish, the scale was fixed between first fixture block and second fixture block this moment, and realization that from this can be convenient is to the installation or the dismantlement of scale.

The present application may be further configured in a preferred example to: the locating plate is provided with a guide groove, the guide groove extends along the extending direction parallel to the locating groove, the lower end of the moving column is fixedly provided with a guide block located in the guide groove, and the guide block is connected with the guide groove in a sliding manner.

Through adopting above-mentioned technical scheme, remove the post and pass through the guide block and slide in the guide way, provide stable orientation effect for the slip of removing the post.

The present application may be further configured in a preferred example to: the fixing mechanism comprises a push rod and a fixing assembly, one end of the push rod penetrates through the positioning plate and extends into the guide groove, the fixing assembly is used for fixing the push rod after moving, the axis direction of the push rod is consistent with the extending direction of the guide groove, and one end of the push rod, which is located in the guide groove, is fixedly connected with the guide block.

Through adopting above-mentioned technical scheme, adopt the push rod can control the guide block in the guide way and remove, pulling or promote the guide block, alright in order to realize the reciprocating sliding of guide block in the guide way, reciprocating sliding alright in order to drive the reciprocating sliding of removal post of guide block.

The present application may be further configured in a preferred example to: the fixed subassembly is including setting firmly fixed sleeve on the locating plate lateral wall, vertical dead lever of wearing to locate fixed sleeve in, be located fixed sleeve and set firmly in the butt board of dead lever periphery wall and connect in butt board and the compression spring between the interior roof of fixed sleeve, the lower extreme of dead lever extends fixed sleeve and just sets up the tight piece in top outward, the outer wall of push rod has set firmly a plurality of locating pieces along its axis direction, the tight piece in top is pegged graft between two adjacent locating pieces.

Through adopting above-mentioned technical scheme, the push rod removes to suitable position department, peg graft between two adjacent locating pieces through compression spring with the tight piece in top of dead lever lower extreme, through the butt effect of two adjacent locating pieces to tight piece in top, make the push rod can not follow its self axis direction reciprocating motion in the constant head tank, realize the fixed operation after the push rod removes from this, when need removing the solid, only need up lift the dead lever, make the dead lever take the tight piece in top deviate from between two adjacent locating pieces can.

The present application may be further configured in a preferred example to: the support frame includes four support columns that are the setting of rectangle array and vertical setting on the base, the locating plate is located between four support columns, the guide ring has set firmly on the locating plate, the guide ring cover is located on the support column and along the extending direction reciprocating sliding of support column.

Through adopting above-mentioned technical scheme, the guide ring can only slide along specific track on the support column, and the locating plate also can only specific vertical removal between four support columns under the effect of guide ring from this, so can guarantee the directional removal of locating plate.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the steel pipe column is clamped at the central position of the second through hole through a plurality of groups of clamping assemblies, the central positions of the second through hole and the first through hole correspond to each other, when the positioning plate vertically slides downwards, the positioning plate drives the steel pipe column to enter the first through hole and be placed into the pile hole, and simultaneously, under the action of the supporting frame, the positioning plate can only directionally vertically slide, so that the steel pipe column can be directionally and accurately placed into the pile hole;

2. the one end of scale inlays in the first draw-in groove of locating first fixture block, tentatively fixes the scale, and the removal post that the rethread slided and sets up makes the removal post slide toward one side of fixed column, until inlaying the second draw-in groove on the second fixture block mutually with the scale and establish, the scale was fixed between first fixture block and second fixture block this moment, and the realization that from this can be convenient is to the installation or the dismantlement of scale.

Drawings

Fig. 1 is a schematic structural diagram of a steel pipe column positioning device for a deep foundation pit underground structure reverse construction method according to an embodiment of the application;

FIG. 2 is a schematic vertical section of an embodiment of the present application;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a cross-sectional view of a locating plate in an embodiment of the present application;

fig. 5 is an enlarged view of a portion B in fig. 3.

In the figure, 1, a base; 11. inserting the column; 12. a first through hole; 13. a side dam; 2. positioning a plate; 21. a second through hole; 22. hiding the groove; 23. positioning a groove; 24. a guide groove; 3. a support frame; 31. a support pillar; 311. a guide ring; 32. a cross bar; 4. a connecting rod; 51. a drive motor; 52. a driving gear; 53. a driven gear; 54. a reciprocating screw; 55. a threaded sleeve; 56. a link rod; 61. clamping the arc-shaped plate; 62. a threaded rod; 621. rotating the nut; 7. an orientation assembly; 71. positioning the sleeve; 72. positioning a rod; 721. positioning holes; 8. a dosing assembly; 81. a slider; 82. a graduated scale; 83. a connecting rod; 91. fixing a column; 911. a first clamping block; 9111. a first card slot; 92. moving the column; 921. a second fixture block; 9211. a second card slot; 922. a guide block; 1011. a push rod; 1021. fixing the sleeve; 1022. a jacking block; 1023. positioning blocks; 1024. fixing the rod; 1025. a butt joint plate; 1026. compressing the spring.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses deep basal pit underground structure reverse construction method steel-pipe column positioner, refer to fig. 1, including base 1, base 1 sets up the rectangle, has set firmly four vertical setting's grafting post 11 at base 1's lower surface, and four grafting posts 11 are located four tip position departments of base 1 respectively, and the one end that base 1 was kept away from to grafting post 11 sets up to most advanced. The base 1 is fixed by inserting the inserting column 11 into the ground.

Referring to fig. 1, a first through hole 12 is formed in the center of a base 1, the first through hole 12 is matched with the diameter of a pile hole, and the first through hole 12 is square so that a steel pipe column can fall down conveniently. The upper surface interval of base 1 is provided with locating plate 2, and the setting of locating plate 2 level, locating plate 2 set up to the vertical reciprocating motion of direction that is close to or keeps away from base 1, and second through-hole 21 has been seted up to the central point department of putting of locating plate 2, and second through-hole 21 sets up to square and corresponding with the position of first through-hole 12. The steel pipe column penetrates through the first through hole 12 and the second through hole 21 and enters the pile hole.

Referring to fig. 1, a support frame 3 is arranged between a base 1 and a positioning plate 2, the support frame 3 includes four support columns 31 and four cross bars 32, the four support columns 31 are vertically arranged and respectively located at four end positions of the base 1, and the lower ends of the support columns 31 are fixedly connected with the base 1. Four horizontal poles 32 all are located the top position department of support column 31, and horizontal pole 32 corresponds respectively and is located between two support columns 31, and the upper end fixed connection of two support columns 31 is on same horizontal pole 32.

Referring to fig. 1, four support columns 31 are respectively sleeved with a guide ring 311, the guide ring 311 slides along the height direction of the support columns 31, a connecting rod 4 is connected between the guide ring 311 and the positioning plate 2, the connecting rod 4 is horizontally arranged, and one end of the connecting rod 4 is fixedly connected with the outer wall of the guide ring 311 and the other end of the connecting rod is fixedly connected with the side wall of the positioning plate 2. When the positioning plate 2 slides in the vertical direction, the positioning plate 2 slides directionally on the supporting columns 31 through the guide rings 311, thereby realizing directional movement of the positioning plate 2 in the vertical direction.

Referring to fig. 2, the base 1 is provided with a driving assembly for controlling the positioning plate 2 to slide vertically, the driving assembly is provided in two groups, two groups of driving assemblies are respectively located at two ends of the base 1 along the length direction of the base 1, the driving assembly includes a driving motor 51, a reciprocating lead screw 54, a driving gear 52, a driven gear 53 and a threaded sleeve 55, the reciprocating lead screw 54 is vertically arranged, the reciprocating lead screw 54 is located between two supporting columns 31 of the base 1 along the width direction of the base 1, the upper end of the reciprocating lead screw 54 is rotatably connected with the cross rod 32, and the lower end of the reciprocating lead screw 54 is rotatably connected with the upper surface of. The threaded sleeve 55 is sleeved on the reciprocating screw 54 and is in threaded connection with the reciprocating screw 54, the link rods 56 are respectively and fixedly arranged between the threaded sleeve 55 and the support columns 31 positioned on two opposite sides of the threaded sleeve 55, the link rods 56 are horizontally arranged and are vertical to the connecting rod 4, one end of each link rod 56 is fixedly connected with the support column 31, and the other end of each link rod 56 is fixedly connected with the threaded sleeve 55.

Referring to fig. 2, the upper surface of the base 1 is fixedly provided with a vertically arranged side baffle 13, a driving motor 51 is fixedly installed on the side baffle 13, an output shaft of the driving motor 51 is vertically arranged downwards, and the output shaft of the driving motor 51 is fixedly connected with a driving gear 52 and coaxially arranged with the driving gear 52. The driven gear 53 is fixedly connected to the reciprocating lead screw 54, the driven gear 53 and the reciprocating lead screw 54 are coaxially arranged, and the driving gear 52 is meshed with the driven gear 53. The drive motor 51 rotates the drive gear 52, the drive gear 52 rotates in mesh with the driven gear 53, and the driven gear 53 rotates the reciprocating screw 54, thereby achieving a reciprocating movement of the threaded sleeve 55 in the axial direction of the reciprocating screw 54.

Referring to fig. 1 and 3, four sets of clamping assemblies are arranged in the second through hole 21 of the positioning plate 2, the four sets of clamping assemblies are distributed circumferentially, the four sets of clamping assemblies are respectively arranged corresponding to the four inner walls of the second through hole 21, and the four sets of clamping assemblies clamp the steel pipe column to enable the steel pipe column to be located at the center positions of the first through hole 12 and the second through hole 21.

Referring to fig. 3 and 4, hidden grooves 22 are respectively formed in four inner walls of the second through hole 21, the four hidden grooves 22 and four groups of clamping assemblies are arranged in a one-to-one correspondence manner, and notches of the hidden grooves 22 are communicated with the second through hole 21. The centre gripping subassembly includes centre gripping arc 61 and threaded rod 62, and centre gripping arc 61 sets up in hiding the groove 22, and the inner curved surface that is located two centre gripping arcs 61 on the same straight line sets up relatively, and centre gripping arc 61 slides the setting in hiding groove 22, and centre gripping arc 61 puts department horizontal slip to the central point of second through-hole 21.

Referring to fig. 3 and 4, the axial direction of the threaded rod 62 is perpendicular to the corresponding side wall of the positioning plate 2, one end of the threaded rod 62 is connected to the positioning plate 2 through a thread and extends into the hidden groove 22, the end of the threaded rod 62 located in the hidden groove 22 is rotatably connected with the outer curved surface of the clamping arc-shaped plate 61, and the end of the threaded rod 62 located outside the positioning plate 2 is fixedly provided with a rotating nut 621. Through rotating threaded rod 62, carry out screw drive between threaded rod 62 and the locating plate 2, threaded rod 62 is pushing away centre gripping arc 61 and is close to the central point department of putting of second through-hole 21 from hiding the interior roll-off of groove 22 until the interior curved surface of centre gripping arc 61 pastes the outer wall in the steel-pipe column.

Referring to fig. 3 and 4, an orientation assembly 7 for enabling the clamping arc-shaped plate 61 to horizontally slide is arranged in the hidden groove 22, the orientation assembly 7 comprises a positioning sleeve 71 and a positioning rod 72, the positioning sleeve 71 and the threaded rod 62 are coaxially arranged, openings are formed in two ends of the positioning sleeve 71, one end of the positioning sleeve 71 is fixedly connected with an outer curved surface of the clamping arc-shaped plate 61, and the other end of the positioning sleeve 71 extends towards one side of a side wall opposite to a notch of the hidden groove 22. The positioning rod 72 and the threaded rod 62 are coaxially arranged, the positioning hole 721 is formed in the positioning rod 72, two ends of the positioning rod are provided with openings, one end of the positioning rod 72 is sleeved in the positioning sleeve 71, the positioning rod 72 is arranged in a reciprocating sliding mode along the axial direction of the positioning sleeve 71, the other end of the positioning rod 72 is fixedly connected with the side wall, opposite to the notch, of the hidden groove 22, and the threaded rod 62 penetrates through the positioning hole 721 of the positioning rod 72 and extends into the positioning sleeve 71. When the clamping arc 61 moves back and forth, the clamping arc 61 can drive the positioning sleeve 71 to directionally slide on the positioning rod 72, so that the clamping arc 61 can be ensured to directionally move.

Referring to fig. 3, the positioning plate 2 is provided with a quantitative assembly 8, and the quantitative assembly 8 is used for measuring the moving stroke of the clamping arc-shaped plates 61, so as to ensure that the moving strokes of the clamping arc-shaped plates 61 in the four groups of clamping assemblies are kept consistent. The quantitative assembly 8 comprises a graduated scale 82, a connecting rod 83 and a sliding block 81, wherein the graduated scale 82 is positioned above the positioning plate 2, and the length direction of the graduated scale 82 is consistent with the axial direction of the threaded rod 62. Locating slot 23 has been seted up to the upper surface of locating plate 2, locating slot 23 intercommunication hides groove 22 and locating slot 23 and extends the setting along the length direction who is on a parallel with scale 82, connecting rod 83 and locating slot 23 looks adaptation, the vertical setting of connecting rod 83, the lower extreme of connecting rod 83 is worn to locate the locating slot 23 and is extended to hiding the inslot 22, the tip fixed connection that centre gripping arc 61 was kept away from to tip and position sleeve 71 that the connecting rod 83 extended to hiding the inslot 22, the upper end and the slider 81 fixed connection of connecting rod 4. The sliding hole is formed in the sliding block 81 and matched with the graduated scale 82, and the graduated scale 82 penetrates through the sliding hole in the sliding block 81. When the positioning sleeve 71 slides along the length direction of the positioning rod 72, the positioning sleeve 71 drives the connecting rod 83 to slide in the positioning groove 23, the connecting rod 83 drives the sliding block 81 to slide on the scale 82, and the sliding block 81 has an indicating effect on the scale 82, so that the moving strokes of the four clamping arc plates 61 in the four groups of clamping assemblies are controlled to be consistent, and the steel pipe column is positioned at the center of the second through hole 21 when the four clamping arc plates 61 are used for clamping the steel pipe column.

Referring to fig. 3, the positioning plate 2 is provided with a fixed column 91 and a movable column 92, the fixed column 91 and the movable column 92 are disposed opposite and vertical to each other, and the fixed column 91 and the movable column 92 are respectively located at two ends of the positioning groove 23 along the length direction thereof. The lower extreme fixed connection of fixed column 91 is on locating plate 2, the upper end of fixed column 91 has set firmly first fixture block 911, the upper end of removing post 92 has set firmly second fixture block 921, the height of first fixture block 911 and second fixture block 921 is unanimous, scale 82 is located between first fixture block 911 and the second fixture block 921, first draw-in groove 9111 has been seted up towards one side of second fixture block 921 to first fixture block 911, second draw-in groove 9211 has been seted up towards one side of first fixture block 911 to second fixture block 921, the both ends of scale 82 are inlayed respectively and are located in first draw-in groove 9111 and the second draw-in groove 9211.

Referring to fig. 3, a guide groove 24 is formed in the positioning plate 2, an extending direction of the guide groove 24 is consistent with an extending direction of the positioning groove 23, the guide groove 24 is located in the extending direction of the positioning groove 23, a guide block 922 is fixedly arranged at the lower end of the movable column 92, and the guide block 922 is located in the guide groove 24 and slides along the extending direction of the guide groove 24.

Referring to fig. 3 and 5, a fixing mechanism for fixing the movable column 92 after moving is arranged on the positioning plate 2, the fixing mechanism includes a push rod 1011 and a fixing component, an axial direction of the push rod 1011 is consistent with an extending direction of the guide groove 24, one end of the push rod 1011 extends into the guide groove 24 after penetrating through an outer side wall of the positioning plate 2, and one end of the push rod 1011 located in the guide groove 24 is fixedly connected with the guide block 922. By pushing the push rod 1011, the push rod 1011 pushes the guide block 922 to move in the guide groove 24, thereby controlling the moving column 92 to approach to the fixed column 91.

Fixed subassembly includes fixed sleeve 1021, the tight piece 1022 in top, locating piece 1023, dead lever 1024, butt board 1025 and compression spring 1026, fixed sleeve 1021 vertical setting and fixed connection are on the lateral wall of locating plate 2, the vertical setting of dead lever 1024, the lower extreme of dead lever 1024 is worn to locate in fixed sleeve 1021 and outside extending fixed sleeve 1021, dead lever 1024 removes the setting along vertical direction in fixed sleeve 1021. The tightening block 1022 is fixedly connected to the lower end of the fixing rod 1024, and one end of the tightening block 1022, which is away from the fixing rod 1024, is arranged in a tapered shape. The locating piece 1023 sets up to a plurality ofly, and a plurality of locating pieces 1023 fixed connection is on the outer wall of push rod 1011, and a plurality of locating pieces 1023 distribute along the axis direction equidistance of push rod 1011, and tight piece 1022 in the top is pegged graft between two adjacent locating pieces 1023, through the cooperation each other of tight piece 1022 and two locating pieces 1023 in top, makes push rod 1011 keep fixed after removing.

Referring to fig. 5, the abutting plate 1025 is located in the fixing sleeve 1021, the abutting plate 1025 is circular, the abutting plate 1025 and the fixing rod 1024 are coaxially arranged, the abutting plate 1025 is fixedly connected to the fixing rod 1024, and the outer peripheral wall of the abutting plate 1025 is attached to the inner peripheral wall of the fixing sleeve 1021. The compression spring 1026 is located between the abutting plate 1025 and the inner top wall of the fixing sleeve 1021, the axial direction of the compression spring 1026 is consistent with the axial direction of the fixing sleeve 1021 and is sleeved on the fixing rod 1024, the upper end of the compression spring 1026 is fixedly connected with the inner top wall of the fixing sleeve 1021, and the lower end of the compression spring 1026 is fixedly connected with the abutting plate 1025. When the compression spring 1026 is in a natural state, the tightening block 1022 is located outside the fixing sleeve 1021 and is inserted between two adjacent positioning blocks 1023.

The implementation principle of the embodiment of the application is as follows: the steel pipe column is hoisted to penetrate through the second through hole 21, the threaded rod 62 is manually rotated, the clamping arc-shaped plate 61 is moved out of the hidden groove 22 under the pushing of the threaded rod 62, the clamping arc-shaped plate 61 drives the connecting rod 83 to move in the positioning groove 23 while moving, the connecting rod 83 drives the sliding block 81 to slide along the length direction of the graduated scale 82, and according to the indication effect of the sliding block 81 on the graduated scale 82, the moving strokes of the four clamping arc-shaped plates 61 can be controlled to be consistent, so that the four clamping arc-shaped plates 61 can just clamp the steel pipe column at the center of the second through hole 21;

at this time, the driving motor 51 is started, the output shaft of the driving motor 51 drives the driving gear 52 to rotate, and the driving gear 52 engages with the driven gear 53 to rotate. The driven gear 53 drives the reciprocating screw rod 54 to rotate between the cross bar 32 and the base 1, the reciprocating screw rod 54 is screwed when rotating to enable the threaded sleeve 55 to move downwards along the axial direction of the reciprocating screw rod 54, so that the guide ring 311 is driven by the connecting rod 56 to slide downwards along the supporting column 31, and the guide ring 311 drives the positioning plate 2 to move downwards by the connecting rod 83 until the lower end of the steel pipe column penetrates into the pile hole from the position of the first through hole 12.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a deep basal pit underground structure reverse construction method steel-pipe column positioner, includes base (1), its characterized in that: the positioning plates (2) are arranged on the base (1) at intervals, the positioning plates (2) are arranged in a vertically reciprocating sliding mode, a support frame (3) is arranged between the positioning plates (2) and the base (1), the support frame (3) is used for enabling the positioning plates (2) to be arranged in a vertically reciprocating sliding mode, and a driving assembly used for controlling the positioning plates (2) to slide vertically is arranged on the base (1); the steel pipe column positioning device is characterized in that a first through hole (12) matched with the diameter of a pile hole is formed in the base (1), a second through hole (21) is formed in the position, corresponding to the first through hole (12), of the positioning plate (2), the steel pipe column penetrates through the first through hole (12) and the second through hole (21), a plurality of groups of clamping assemblies are arranged on the positioning plate (2) in the second through hole (21) in the circumferential direction, and the clamping assemblies clamp the steel pipe column to enable the steel pipe column to be located in the center positions of the first through hole (12) and the second through hole (21).

2. The deep foundation pit underground structure reverse construction method steel pipe column positioning device of claim 1, characterized in that: locating plate (2) have hidden groove (22) in the indent of the inner wall position department of second through-hole (21), the notch and the mutual intercommunication setting of second through-hole (21) of hidden groove (22), the centre gripping subassembly includes that the level slides and sets up centre gripping arc (61) and one end threaded connection in hidden groove (22) in locating plate (2) and extend to hide in groove (22) and with threaded rod (62) of the outer curved surface swivelling joint of centre gripping arc (61), the interior curved surface laminating of centre gripping arc (61) is in the steel-pipe column outer wall, be provided with orientation subassembly (7) that are used for making centre gripping arc (61) horizontal slip in hidden groove (22).

3. The deep foundation pit underground structure reverse construction method steel pipe column positioning device of claim 2, characterized in that: locating component (7) include that one end sets firmly in the outer curved surface of centre gripping arc (61), other end to hide positioning sleeve (71) that the direction extended setting in groove (22) and cover and locate positioning sleeve (71) in and along positioning sleeve's (71) axis direction reciprocating sliding's locating lever (72), locating lever (72) are located positioning sleeve (71) outer one end and hide diapire fixed connection of groove (22) towards its notch department.

4. The deep foundation pit underground structure reverse construction method steel pipe column positioning device of claim 3, characterized in that: the middle part of the positioning rod (72) is provided with a positioning hole (721) along the axial direction, one end of the threaded rod (62) penetrates through the positioning hole (721) and the positioning sleeve (71) and is rotatably connected with the outer curved surface of the clamping arc-shaped plate (61), and the threaded rod (62), the positioning sleeve (71) and the positioning rod (72) are coaxially arranged.

5. The deep foundation pit underground structure reverse construction method steel pipe column positioning device of claim 3, characterized in that: can dismantle on locating plate (2) and be connected with scale (82), the extending direction of scale (82) is unanimous with the axis direction of threaded rod (62), locating plate (2) are gone up and have been seted up constant head tank (23) along the extending direction that is on a parallel with scale (82), constant head tank (23) and hidden groove (22) communicate each other and set up, set firmly connecting rod (83) that stretch out constant head tank (23) on position sleeve (71), connecting rod (83) are located the outer one end of constant head tank (23) and set firmly slider (81) that the cover located scale (82), slider (81) slide along the extending direction of scale (82) and set up.

6. The deep foundation pit underground structure reverse construction method steel pipe column positioning device of claim 5, characterized in that: fixed column (91) of vertical setting have set firmly on locating plate (2), the one end that locating plate (2) were kept away from in fixed column (91) has set firmly first fixture block (911), set up first draw-in groove (9111) with scale (82) looks adaptation on first fixture block (911), slide to fixed column (91) direction on locating plate (2) and be provided with the removal post (92) of vertical setting, the one end that locating plate (2) were kept away from in removal post (92) has set firmly second fixture block (921), second draw-in groove (9211) with scale (82) looks adaptation are seted up in second fixture block (921), scale (82) are inlayed and are located in first draw-in groove (9111) and second draw-in groove 9211), be provided with on locating plate (2) and are used for removing post (92) fixed establishment.

7. The deep foundation pit underground structure reverse construction method steel pipe column positioning device of claim 6, characterized in that: seted up guide way (24) on locating plate (2), guide way (24) extend along the extending direction who is on a parallel with constant head tank (23) and set up, the lower extreme of removal post (92) sets firmly guide block (922) that are located guide way (24), guide block (922) and guide way (24) are slided and are connected.

8. The deep foundation pit underground structure reverse construction method steel pipe column positioning device of claim 7, characterized in that: the fixing mechanism comprises a push rod (1011) and a fixing component, wherein one end of the push rod (1011) penetrates through the positioning plate (2) and extends into the guide groove (24), the fixing component is used for fixing the push rod (1011) after moving, the axial direction of the push rod (1011) is consistent with the extending direction of the guide groove (24), and one end of the push rod (1011) located in the guide groove (24) is fixedly connected with the guide block (922).

9. The deep foundation pit underground structure reverse construction method steel pipe column positioning device of claim 8, characterized in that: fixed subassembly is including setting firmly fixed sleeve (1021) on locating plate (2) lateral wall, vertically wearing to locate dead lever (1024) in fixed sleeve (1021), be located fixed sleeve (1021) and set firmly butt joint board (1025) in dead lever (1024) periphery wall and connect compression spring (1026) between butt joint board (1025) and fixed sleeve (1021 interior roof, the lower extreme of dead lever (1024) extends fixed sleeve (1021) and just sets up tight piece (1022) in the outer, the outer wall of push rod (1011) has set firmly a plurality of locating pieces (1023) along its axis direction, tight piece (1023) in the top is pegged graft between two adjacent locating pieces (1023).

10. The deep foundation pit underground structure reverse construction method steel pipe column positioning device of claim 1, characterized in that: support frame (3) include four support columns (31) that are the setting of rectangle array and vertical setting on base (1), locating plate (2) are located between four support columns (31), set firmly guide ring (311) on locating plate (2), guide ring (311) cover is located on support column (31) and is followed the extending direction reciprocating sliding of support column (31).