CN116607522A - Positioner of wall steel reinforcement cage even - Google Patents

Abstract

The invention relates to a positioning device of a diaphragm wall reinforcement cage, which comprises an upper clamp, a lower clamp and screw steel, wherein the top of the upper clamp is provided with a lifting lug for lifting the whole positioning device; the upper fixture is provided with at least two first through holes, the lower fixture is provided with at least two second through holes and at least two third through holes, the positions of the first through holes and the second through holes are vertically corresponding, the first through holes are used for penetrating through the screw steel, the upper part of the screw steel penetrates through the first through holes, and the lower part of the screw steel penetrates through the second through holes, and the upper fixture and the lower fixture are connected; the top of the main rib of the reinforcement cage penetrates through the third through hole and is used for connecting the reinforcement cage with the lower fixture; when the steel bar lifting device is used, the penetrating bar penetrates through the lower part of the upper clamping apparatus and props against the lower surface of the upper clamping apparatus, and meanwhile, the two ends of the penetrating bar are lapped at the top of the guide wall, so that the steel bar cage is lifted in a proper height in the groove by the positioning device.

Description

Positioner of wall steel reinforcement cage even

Technical Field

The invention belongs to the technical field of building construction of underground continuous walls, and particularly relates to a positioning device of a reinforcement cage of the underground continuous walls.

Background

The underground continuous wall is formed by digging a groove downwards on the design ground by using an excavating machine, placing an internal reinforcement cage of the underground continuous wall in the groove, and then pouring concrete in the groove. The diaphragm wall is widely applied to various foundation engineering. At present, the steel reinforcement cage of the underground continuous wall is mainly lowered by adopting the following method that a certain distance is kept between the top main rib in the groove of the underground continuous wall and the top surface (namely the ground) of the guide wall, two main rib tops at the top of the steel reinforcement cage are welded with double circular steel rings to form an upper lifting ring and a lower lifting ring, and the lifting ring above is used for connecting a steel wire rope of a crawler crane and is used for lifting the steel reinforcement cage; after the reinforcement cage is put down in place, namely put into the slot, penetrate a penetrating bar into two lifting lugs of below side by side, then the both ends of penetrating bar are taken on the ground at slot top to fix the reinforcement cage.

This conventional approach has the following disadvantages: (1) After the penetrating bar is erected and fixed on the ground, the hanging ring above is directly cut off, after concrete pouring is finished and maintenance is finished, the penetrating bar is dismantled, the hanging ring below is cut off, and the hanging ring cannot be reused, so that materials are wasted; (2) When the round steel of the hanging ring is cut off, the risk of damaging the main reinforcement exists; (3) Because round steel rings are welded in advance, if the steel reinforcement cage is slightly deformed in the hoisting process, the heights of the two parallel rings are inconsistent with the design before hoisting, and at the moment, the plane position and the height of the steel reinforcement cage are very difficult to adjust, so that the work efficiency is very low.

Disclosure of Invention

According to the positioning device for the diaphragm wall reinforcement cage, the upper clamp and the lower clamp are arranged, the threaded steel is connected between the two clamps, the lower clamp is connected with the main reinforcement of the reinforcement cage, the penetrating bar is arranged below the upper clamp, namely, the penetrating bar supports the upper clamp, the threaded steel plays a role in finely adjusting the horizontal position of the reinforcement cage, and finally, the lower clamp is detached from the main reinforcement, so that the main reinforcement is not damaged, and the positioning device can be used for multiple times.

The positioning device of the diaphragm wall reinforcement cage comprises an upper clamp, a lower clamp and screw steel, wherein the top of the upper clamp is provided with a lifting lug for lifting the whole positioning device; the upper fixture is provided with at least two first through holes, the lower fixture is provided with at least two second through holes and at least two third through holes, the positions of the first through holes and the second through holes are vertically corresponding, the first through holes are used for penetrating through the screw steel, the upper part of the screw steel penetrates through the first through holes, and the lower part of the screw steel penetrates through the second through holes, and the upper fixture and the lower fixture are connected; the top of the main rib of the reinforcement cage penetrates through the third through hole and is used for connecting the reinforcement cage with the lower fixture;

when the steel bar lifting device is used, the penetrating bar penetrates through the lower part of the upper clamping apparatus and props against the lower surface of the upper clamping apparatus, and meanwhile, the two ends of the penetrating bar are lapped at the top of the guide wall, so that the steel bar cage is lifted in a proper height in the groove by the positioning device.

Optionally, the first through-hole of going up the fixture is even number to the lug is the central line, and first through-hole symmetry sets up for can even application of force when the screw-thread steel connects the fixture, avoid going up the fixture and warp because of screw-thread steel atress is uneven.

Optionally, after the upper portion of screw-thread steel runs through first through-hole, set up the bolt in the top of first through-hole, the bolt medial surface is equipped with the internal thread with screw-thread looks adaptation of screw-thread steel for the position of fixed screw-thread steel at last fixture.

Optionally, the number of the second through holes is the same as that of the first through holes, and the position of each second through hole corresponds to that of one first through hole one by one, so that the same screw-thread steel is kept in a vertical state after penetrating through the corresponding second through hole and the corresponding first through hole;

and after the lower part of the deformed steel bar penetrates through the second through hole, a bolt is arranged below the second through hole, and is provided with an internal thread for fixing the position of the deformed steel bar in the lower fixture.

Optionally, the third through holes of the lower fixture are even in number, and the third through holes are symmetrically arranged with the center line of the lower fixture as the center.

Optionally, after the top of the main rib penetrates through the third through hole, a sleeve is arranged above the third through hole, and the sleeve is hollow and used for penetrating through the main rib; the inner side surface of the sleeve is provided with an internal thread matched with the external thread of the main rib, and the internal thread is used for fixing the position of the main rib at the lower clamp.

However, in actual construction, the sleeve is stressed more above the lower clamp because of the heavy weight of the reinforcement cage, and is difficult to remove at last. To solve the problem, the positioning device of the invention further comprises an adjusting top assembly part, wherein the adjusting top assembly part is arranged between the sleeve and the lower fixture, the adjusting top assembly part comprises an upper top plate, a lower top plate and a plurality of vertical supporting mechanisms between the upper top plate and the lower top plate, the upper top plate and the lower top plate are horizontally arranged, and the supporting mechanisms comprise a support column and a plurality of detachable top assembly blocks on the support column.

Optionally, through holes are formed in the centers of the upper top plate and the lower top plate and used for penetrating through the main ribs; the position that the upper surface of roof corresponds the pillar down is equipped with a plurality of undercut screw hole, and the lower surface of going up the roof corresponds the position of pillar and is equipped with a plurality of undercut blind hole, and the lateral surface of pillar bottom is equipped with the external screw thread with the screw hole adaptation, and the pillar top can block into the blind hole realizes the fixed of pillar on upper and lower roof.

Optionally, a through hole is formed in the center of the top loading block, and the support column passes through the top loading block from the through hole; the top loading block is formed by hinging two sub-blocks, so that the two sub-blocks can be opened or closed along the opposite horizontal directions for disassembling the top loading block.

In order to facilitate the dismantling of the sleeve and the synchronous adjustment of the bolt above the first through hole, the positioning device also comprises a tightening machine, wherein the tightening machine comprises a horizontal connecting rod and two motors, two ends of the horizontal connecting rod are respectively connected with one motor, the output end of the motor is connected with a detachable rotating frame, and the bottom of the rotating frame is used for connecting the bolt or the sleeve which needs to be tightened or loosened; the middle part of the horizontal connecting rod is internally provided with a horizontal display groove, liquid is filled in the horizontal display groove, and whether the horizontal connecting rod is horizontal is detected according to the flowing state of the liquid.

Optionally, the horizontal connecting rod includes horizontal pole and two connecting rods, and a connecting rod is connected respectively at the both ends of horizontal pole, and the motor is connected to the other end of connecting rod, and horizontal pole and connecting rod are in same horizontal plane, and the connecting rod perpendicular to horizontal pole.

Optionally, the rotating frame comprises an upper rotating ring, a lower rotating ring and a plurality of vertical supporting rods, the upper rotating ring and the lower rotating ring are horizontally arranged, the output end of the motor is connected with the upper rotating ring, the lower rotating ring is used for being sleeved on the outer side surface of the bolt or the sleeve, and the lower rotating ring is provided with a shape matched with the shape of the bolt or the sleeve and used for driving the bolt or the sleeve to rotate;

the support rods are used for connecting the upper rotating ring and the lower rotating ring, and a plurality of support rods are uniformly arranged along the outer side face of the rotating frame.

Drawings

FIG. 1 is a schematic structural view of a positioning device for a diaphragm wall reinforcement cage;

FIG. 2 is a schematic perspective view of an adjustment top assembly;

FIG. 3 is a schematic side view of an adjustment top mount component;

FIG. 4 is a schematic view of a top-loading block;

fig. 5 is a schematic view of the structure of the tightening machine.

In the drawing, the upper fixture, the lower fixture, the 3-threaded steel, the 4-lifting lug, the 5-first through hole, the 6-second through hole, the 7-third through hole, the 8-main rib, the 9-penetrating bar, the 10-bolt, the 11-sleeve, the 12-upper top plate, the 13-lower top plate, the 14-supporting column, the 15-top mounting block, the 16-threaded hole, the 17-blind hole, the 18-penetrating hole, the 19-horizontal rod, the 20-connecting rod, the 21-motor, the 22-horizontal display groove, the 23-upper rotating ring, the 24-lower rotating ring and the 25-supporting rod are arranged.

Detailed Description

The embodiment provides a positioning device of a diaphragm wall reinforcement cage, which comprises an upper clamp 1, a lower clamp 2 and a screw steel 3, wherein the top of the upper clamp 1 is provided with a lifting lug 4 for lifting the whole positioning device as shown in fig. 1-5; the upper fixture 1 is provided with at least two first through holes 5, the lower fixture 2 is provided with at least two second through holes 6 and at least two third through holes 7, the positions of the first through holes 5 and the second through holes 6 are vertically corresponding and are used for penetrating through the screw steel 3, the upper part of the screw steel 3 penetrates through the first through holes 5, and the lower part penetrates through the second through holes 6 and are used for connecting the upper fixture 1 and the lower fixture 2; the top of the main reinforcement 8 of the reinforcement cage penetrates through the third through hole 7 and is used for connecting the reinforcement cage with the lower fixture 2;

when the steel bar cage positioning device is used, the penetrating bar 9 penetrates through the lower side of the upper clamp 1 and props against the lower surface of the upper clamp 1, and meanwhile, two ends of the penetrating bar 9 are lapped on the top of the guide wall, so that the steel bar cage is lifted in a proper height in the groove by the positioning device.

Optionally, the shapes of the upper fixture 1 and the lower fixture 2 are the same, so that the processing is convenient, the upper fixture is selected from one of cubes, cylinders, trapezoids and triangular pyramids, and is preferably trapezoids or cubes, the processing is simple, and the structure is stable.

Optionally, the lifting lug 4 is arranged in the center of the top of the upper fixture 1, and when the reinforcement cage is lifted, the steel wire rope is connected with the lifting lug 4 for lifting; the lifting lug 4 can be welded on the upper fixture 1 or integrally formed with the upper fixture 1.

Optionally, the first through holes 5 of going up fixture 1 are even numbers to lug 4 is the central line, and first through holes 5 symmetry sets up for can even application of force when screw-thread steel 3 connects to go up fixture 1, avoid going up fixture 1 and warp because of screw-thread steel 3 atress uneven.

Optionally, after the upper portion of the deformed steel bar 3 penetrates through the first through hole 5, a bolt 10 is arranged above the first through hole 5, and an internal thread matched with the external thread of the deformed steel bar 3 is arranged on the inner side surface of the bolt and used for fixing the position of the deformed steel bar 3 on the upper fixture 1.

Optionally, the number of the second through holes 6 is the same as that of the first through holes 5, and the position of each second through hole 6 corresponds to the position of one first through hole 5 one by one, so that the same threaded steel 3 is kept in a vertical state after penetrating through the corresponding second through hole 6 and the corresponding first through hole 5;

after the lower part of the deformed steel bar 3 penetrates through the second through hole 6, a bolt is arranged below the second through hole 6, and the bolt is provided with internal threads for fixing the position of the deformed steel bar 3 in the lower fixture 2.

Optionally, the third through holes 7 of the lower fixture 2 are even in number, the center line of the lower fixture 2 is used as the center, and the third through holes 7 are symmetrically arranged, so that the force can be uniformly applied when the main rib 8 of the reinforcement cage is connected with the lower fixture 2, and the lower fixture 2 is prevented from being inclined due to uneven stress of the main rib 8.

Optionally, after the top of the main rib 8 penetrates through the third through hole 7, a sleeve 11 is arranged above the third through hole 7, and the sleeve 11 is hollow and is used for penetrating through the main rib 8; the inner side of the sleeve 11 is provided with an internal thread matched with the external thread of the main rib 8, and is used for fixing the position of the main rib 8 on the lower clamp 2.

The invention realizes the connection of the positioning device and the main rib 8 through the connection of the main rib 8 and the screw thread steel 3 on the upper clamp 1 and the lower clamp 2. Specifically, a plurality of positioner is evenly connected to the top of steel reinforcement cage, forms a plurality of rows, and a bar 9 runs through the last fixture 1 below of positioner of same row in proper order, and the both ends of bar 9 are placed at the top of the guide wall of wall both sides even in the ground (the height of here is basically flush with ground), and the steel reinforcement cage passes through positioner and bar 9 hang and dig the inside of slot that establishes for even the wall even in the ground, wait for follow-up pouring concrete, form even wall at last.

Because the weight of the reinforcement cage is large, after the main rib 8 penetrates through the third through hole 7, downward acting force is applied to the lower clamp 2, the sleeve 11 is connected with the main rib 8 and props against the top surface of the lower clamp 2, and the connection between the main rib 8 and the lower clamp 2 is stabilized; the screw steel 3 penetrates through the second through hole 6, and a bolt below the second through hole 6 abuts against the bottom surface of the lower clamp 2, so that the screw steel 3 is used for lifting the lower clamp 2 upwards; the screw thread steel 3 penetrates through the first through hole 5, downward acting force is applied to the upper clamp 1, a bolt above the first through hole 5 abuts against the top surface of the upper clamp 1, and connection between the screw thread steel 3 and the upper clamp 1 is stabilized; finally, the penetrating bar 9 is propped against the bottom surface of the upper fixture 1 and bears the weight of the positioning device and the reinforcement cage. Like this, through two upper and lower fixtures and screw steel 3 between, can realize the connection to main muscle 8, after the steel reinforcement cage concreting, maintenance are accomplished, positioner is exposed outside, demolish sleeve 11 and the bolt of second through-hole 6 below can, positioner need not to destroy, can reuse.

When the reinforcement cage is slightly deformed in the hoisting process, the heights of different main ribs 8 connected with the same positioning device are possibly slightly different, so that the positioning device is slightly inclined, and the penetrating bar 9 cannot be completely attached to the lower surface of the upper fixture 1; or the heights of the main ribs 8 connected with different positioning devices are different, so that the heights of a plurality of upper clamps 1 on the same row are different (namely, the heights are uneven), and the penetrating bar 9 cannot penetrate through, or the upper clamps 1 after penetrating are not attached to the penetrating bar 9; alternatively, the upper clamps 1 of different rows have different heights, so that the penetrating bar 9 cannot penetrate, or the penetrating bar 9 is not contacted with the upper clamps 1 of the same row. When the penetrating bar 9 is not contacted with the corresponding upper fixture 1, the penetrating bar 9 cannot bear the weight of the reinforcement cage, when the penetrating bar 9 is not completely flattened when being contacted with the corresponding upper fixture 1, the stressed area of the penetrating bar 9 is reduced, the stressed condition is rapidly deteriorated, and the penetrating bar 9 is likely to be broken when serious.

When the situation occurs, the upper clamp 1 with the too high or too low height position is found, the bolt above the first through hole 5 is rotated downwards or upwards along the screw steel 3, so that the upper clamp 1 is slightly adjusted in height downwards or upwards, the lower surface of the upper clamp 1 is horizontal and can be flatly attached to the penetrating bar 9, and the problem of deformation of the position deviation of the reinforcement cage is solved.

However, in actual construction, the sleeve 11 is stressed more above the lower clamp 2 due to the heavy weight of the reinforcement cage, which is difficult to remove at the end. To solve this problem, the positioning device of the present invention further comprises an adjusting top assembly, wherein the adjusting top assembly is arranged between the sleeve 11 and the lower fixture 2, the adjusting top assembly comprises an upper top plate 12, a lower top plate 13, and a plurality of vertical supporting mechanisms between the upper top plate 12 and the lower top plate 13, the upper top plate 12 and the lower top plate 13 are horizontally arranged, and the supporting mechanisms comprise a support column 14 and a plurality of detachable top assembly blocks 15 on the support column 14.

Optionally, the centers of the upper top plate 12 and the lower top plate 13 are provided with through holes for passing through the main ribs 8; the position that the upper surface of lower roof 13 corresponds pillar 14 is equipped with a plurality of sunken screw hole 16 downwards, and the lower surface of upper roof 12 corresponds the position of pillar 14 and is equipped with a plurality of blind hole 17 that upwards sunken, and the lateral surface of pillar 14 bottom is equipped with the external screw thread with screw hole 16 adaptation, and the pillar 14 top can block into blind hole 17 realizes the fixed of pillar 14 on upper and lower roof 13.

Optionally, a through hole 18 is arranged in the center of the top loading block 15, and the support column 14 passes through the top loading block 15 from the through hole 18; the top loading block 15 is formed by hinging two sub-blocks, so that the two sub-blocks can be opened or closed along the opposite directions of the horizontal direction, and the top loading block 15 is detached; the opposite of the hinge position of the two blocks is provided with a fixing clamp, and the fixing clamp holds the two blocks tightly during closing to avoid the loosening of the top loading block 15.

Optionally, a plurality of graduation marks are uniformly arranged on the side surface of the pillar 14, each graduation mark corresponds to one top loading block 15, and the height difference between the graduation mark and the next top loading block 15 is equal to the length of the pillar 14 extending into the blind hole 17 of the upper top plate 12.

When the main rib 8 is connected with the lower clamp 2, the main rib 8 penetrates through the third through hole 7, the lower top plate 13 penetrates into the main rib 8 from top to bottom from the upper side of the lower clamp 2, the bottom end of the support column 14 is screwed into the threaded hole 16 of the lower top plate 13, a plurality of top loading blocks 15 sequentially penetrate into the support column 14 through the penetrating holes 18 of the top loading blocks, and meanwhile, the two blocks are clamped by the fixing clamp of the top loading blocks 15; the upper top plate 12 is inserted into the main rib 8, and the top ends of the struts 14 are inserted into the blind holes 17 of the upper top plate 12, that is, the struts 14 and the top loading blocks 15 are arranged between the upper top plate 13 and the lower top plate 13 at the same time to provide supporting function. The sleeve 11 is screwed into the main rib 8 until the bottom surface of the sleeve 11 abuts against the top surface of the upper top plate 12, which is equivalent to the adjustment of the top assembly and the sleeve 11 against the lower clamp 2.

When the positioning device needs to be removed, firstly, the top loading block 15 at the uppermost part of each strut 14 is removed, one section of the strut 14 and one scale line are exposed, the strut 14 is cut off along the scale line, the upper top plate 12 loses support, the strut can descend to the new top end of the strut 14 along the main rib 8, the new top end is inserted into the blind hole 17, and at the moment, the top loading block 15 at the uppermost part supports the upper top plate 12. At this time, a certain distance is provided between the upper top plate 12 and the sleeve 11, so that the sleeve 11 can be removed mechanically. The rest of the support posts 14 can be used in the next construction of the underground continuous wall until the support posts 14 are short in length and are discarded, the support posts 14 are replaced by new support posts 14, and the support posts 14 are common thin steel bars, so that the method is low in cost and easy to obtain. The top block 15 is entirely reusable.

Further optionally, the adjusting top assembly part further comprises a protecting sleeve, the protecting sleeve is wrapped outside the upper top plate 12 and the lower top, and is in an organ folding shape, so that the protecting sleeve can adapt to different distances between the upper top plate 12 and the lower top, and is convenient to use for multiple times; the protective sleeve is made of plastic materials and is used for adapting to water environment and slowing down the corrosion speed of the top plate and the supporting mechanism inside.

In order to facilitate the dismantling of the sleeve 11 and the synchronous adjustment of the bolts above the first through hole 5, the positioning device also comprises a tightening machine, wherein the tightening machine comprises a horizontal connecting rod 20 and two motors 21, two ends of the horizontal connecting rod 20 are respectively connected with one motor 21, the output end of the motor 21 is connected with a detachable rotating frame, and the bottom of the rotating frame is used for connecting the bolts or the sleeve 11 which need to be tightened or loosened; a horizontal display groove 22 is provided in the middle of the horizontal link 20, and a liquid is filled in the horizontal display groove 22, and whether the horizontal link 20 is horizontal is detected according to the flowing state of the liquid.

Optionally, the horizontal connecting rod 20 includes horizontal rod 19 and two connecting rods 20, a connecting rod 20 is connected respectively at the both ends of horizontal rod 19, motor 21 is connected to the other end of connecting rod 20, horizontal rod 19 and connecting rod 20 are in same horizontal plane, and connecting rod 20 perpendicular to horizontal rod 19, and when this kind of frame molding made connecting rod 20 stretch to two symmetrical bolt top, horizontal rod 19 gave way for lug 4 and the hoist device of connection, and the operating personnel of being convenient for hold horizontal connecting rod 20 to observe horizontal display groove 22.

Optionally, the rotating frame includes an upper rotating ring 23, a lower rotating ring 24 and a plurality of vertical struts 25, the upper rotating ring 23 and the lower rotating ring 24 are both horizontally arranged, the output end of the motor 21 is connected with the upper rotating ring 23, the lower rotating ring 24 is used for being sleeved on the outer side surface of the bolt or the sleeve 11, and the lower rotating ring 24 has a shape adapted to the shape of the bolt or the sleeve 11, so that the bolt or the sleeve 11 is conveniently driven to rotate;

the supporting rods 25 are used for connecting the upper rotating ring 23 and the lower rotating ring 24, and a plurality of supporting rods 25 are uniformly arranged along the outer side surface of the rotating frame; the length of the strut 25, i.e. the distance between the upper turn 23 and the lower turn 24, is adjusted according to the length of the screw 3 protruding from the upper clamp 1 or the length of the main bar 8 protruding from the lower clamp 2. The motor and the rotating frame are vertical.

Optionally, a transparent cover is arranged on the top surface of the horizontal display groove 22, so that the liquid inside the horizontal display groove 22 can be observed conveniently; the liquid is selected from one or more than two of water, glycol, glycerol and ethanol; when the liquid is biased to one side, this side of the horizontal link 20 is indicated as being low; when liquid is spread in the horizontal display slot 22, it is indicated that the horizontal link 20 is horizontal.

The tightening machine can synchronously tighten or loosen the symmetrically arranged bolts or sleeves 11, and judges whether the symmetrical bolts or sleeves 11 are uniform in height or not by observing whether the liquid in the horizontal display groove 22 deflects or deviates to which side, so that the upper clamp 1 or the lower clamp 2 is prevented from being inclined.

Claims (10)

1. The positioning device of the diaphragm wall reinforcement cage is characterized by comprising an upper clamp, a lower clamp and screw steel, wherein the top of the upper clamp is provided with a lifting lug for lifting the whole positioning device; the upper fixture is provided with at least two first through holes, the lower fixture is provided with at least two second through holes and at least two third through holes, the positions of the first through holes and the second through holes are vertically corresponding, the first through holes are used for penetrating through the screw steel, the upper part of the screw steel penetrates through the first through holes, and the lower part of the screw steel penetrates through the second through holes, and the upper fixture and the lower fixture are connected; the top of the main reinforcement of the reinforcement cage penetrates through the third through hole and is used for connecting the reinforcement cage with the lower fixture.

2. The positioning device of the diaphragm wall reinforcement cage according to claim 1, wherein the number of the first through holes of the upper clamp is even, lifting lugs are taken as central lines, and the first through holes are symmetrically arranged, so that even force application can be performed when the screw-thread steel is connected with the upper clamp, and the upper clamp is prevented from being skewed due to uneven stress of the screw-thread steel;

after the upper portion of screw-thread steel runs through first through-hole, set up the bolt in the top of first through-hole, the bolt medial surface is equipped with the internal thread with screw-thread looks adaptation of screw-thread steel for the position of fixed screw-thread steel at last fixture.

3. The positioning device of the diaphragm wall reinforcement cage according to claim 2, wherein the number of the second through holes is the same as that of the first through holes, and the positions of the second through holes are in one-to-one correspondence with those of one first through hole, so that the same screw-thread steel is kept in a vertical state after penetrating through the corresponding second through hole and the corresponding first through hole;

and after the lower part of the deformed steel bar penetrates through the second through hole, a bolt is arranged below the second through hole, and is provided with an internal thread for fixing the position of the deformed steel bar in the lower fixture.

4. The positioning device of the diaphragm wall reinforcement cage according to claim 3, wherein the number of the third through holes of the lower fixture is even, and the third through holes are symmetrically arranged with the center line of the lower fixture as the center;

after the top of the main rib penetrates through the third through hole, a sleeve is arranged above the third through hole, and the sleeve is hollow and used for penetrating through the main rib; the inner side surface of the sleeve is provided with an internal thread matched with the external thread of the main rib, and the internal thread is used for fixing the position of the main rib at the lower clamp.

5. The positioning device of a diaphragm wall reinforcement cage of claim 4, further comprising an adjustment top assembly, wherein the adjustment top assembly is disposed between the sleeve and the lower fixture, the adjustment top assembly comprises an upper top plate, a lower top plate, and a plurality of vertical support mechanisms between the upper top plate and the lower top plate, the upper top plate and the lower top plate are both horizontally disposed, and the support mechanisms comprise a support post and a plurality of removable top assembly blocks on the support post.

6. The positioning device of the wall-connected reinforcement cage according to claim 5, wherein the centers of the upper top plate and the lower top plate are provided with through holes for passing through the main bars; the position that the upper surface of roof corresponds the pillar down is equipped with a plurality of undercut screw hole, and the lower surface of going up the roof corresponds the position of pillar and is equipped with a plurality of undercut blind hole, and the lateral surface of pillar bottom is equipped with the external screw thread with the screw hole adaptation, and the pillar top can block into the blind hole realizes the fixed of pillar on upper and lower roof.

7. The positioning device of the diaphragm wall reinforcement cage according to claim 6, wherein a through hole is formed in the center of the top loading block for the support column to pass through the top loading block from the through hole; the top loading block is formed by hinging two sub-blocks, so that the two sub-blocks can be opened or closed along the opposite horizontal directions for disassembling the top loading block.

8. The positioning device of the diaphragm wall reinforcement cage according to claim 4, wherein the positioning device further comprises a tightening machine, the tightening machine comprises a horizontal connecting rod and two motors, two ends of the horizontal connecting rod are respectively connected with one motor, the output end of the motor is connected with a detachable rotating frame, and the bottom of the rotating frame is used for connecting a bolt or a sleeve which needs to be tightened or loosened; the middle part of the horizontal connecting rod is internally provided with a horizontal display groove, liquid is filled in the horizontal display groove, and whether the horizontal connecting rod is horizontal is detected according to the flowing state of the liquid.

9. The positioning device of the diaphragm wall reinforcement cage according to claim 8, wherein the horizontal connecting rod comprises a horizontal rod and two connecting rods, two ends of the horizontal rod are respectively connected with one connecting rod, the other ends of the connecting rods are connected with the motor, the horizontal rod and the connecting rods are in the same horizontal plane, and the connecting rods are perpendicular to the horizontal rod.

10. The positioning device of the diaphragm wall reinforcement cage according to claim 9, wherein the rotating frame comprises an upper rotating ring, a lower rotating ring and a plurality of vertical supporting rods, the upper rotating ring and the lower rotating ring are horizontally arranged, the output end of the motor is connected with the upper rotating ring, and the lower rotating ring is sleeved on the outer side surface of the bolt or the sleeve and used for driving the bolt or the sleeve to rotate;

the support rods are used for connecting the upper rotating ring and the lower rotating ring, and a plurality of support rods are uniformly arranged along the outer side face of the rotating frame.