CN213867782U

CN213867782U - Structure for improving bearing capacity of bored pile

Info

Publication number: CN213867782U
Application number: CN202022644025.9U
Authority: CN
Inventors: 蔡国华; 刘班; 胡敏华
Original assignee: Zhejiang Guangda Construction Group Co ltd
Current assignee: Zhejiang Guangda Construction Group Co ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-08-03
Anticipated expiration: 2030-11-16

Abstract

The utility model discloses an improve structure of bored concrete pile bearing capacity, including external ground, the stake hole has been seted up at the top on external ground, the inside in stake hole is provided with the steel reinforcement cage body, the top on external ground is provided with the cover and establishes the connecting plate on steel reinforcement cage body surface, the left side fixedly connected with winch at connecting plate top. The utility model discloses a winch drives the helical gear rotatory, the helical gear passes through the sleeve pipe and drives the rotation of positive and negative tooth lead screw, positive and negative tooth lead screw promotes two extrusion covers and removes to the inboard, when the surface contact of extrusion cover and steel reinforcement cage body, the location to the steel reinforcement cage body is accomplished, avoid the steel reinforcement cage body axial offset or come-up to appear, the steel reinforcement cage of having solved current stake appears the phenomenon of come-up easily at the cement filling in-process, the light person comes up several centimetres to tens centimetres, the heavy person comes up several metres, whole floating even, there is the problem of very big harm to engineering quality and bearing capacity.

Description

Structure for improving bearing capacity of bored pile

Technical Field

The utility model relates to a bored concrete pile technical field specifically is a structure that improves bored concrete pile bearing capacity.

Background

The cast-in-situ bored pile is a pile made by forming a pile hole in foundation soil through mechanical drilling, steel pipe soil extrusion or manual excavation and the like on an engineering site, placing a reinforcement cage and cast-in-place concrete in the pile hole, and according to different hole forming methods, the cast-in-situ bored pile can be divided into a immersed tube cast-in-situ pile, a cast-in-situ bored pile and a cast-in-situ bored pile.

The cast-in-situ bored pile needs to insert a reinforcement cage into a pile hole in the construction process, but the reinforcement cage of the existing pile easily floats upwards in the cement filling process, light people float upwards for several centimeters to dozens of centimeters, heavy people float upwards for several meters, even all float upwards, and the cast-in-situ bored pile has great harm to the engineering quality and the bearing capacity.

SUMMERY OF THE UTILITY MODEL

For solving the problem that proposes in the above-mentioned background art, the utility model aims to provide an improve structure of bored concrete pile bearing capacity possesses the advantage that prevents the stake come-up, has solved the phenomenon that the steel reinforcement cage of current stake appears the come-up easily at the cement filling in-process, and the light person comes up several centimetres to dozens of centimetres, and the heavy person comes up several meters, and whole floating even has the problem of very big harm to engineering quality and bearing capacity.

The utility model provides a following technical scheme: the utility model provides an improve structure of bored concrete pile bearing capacity, includes external ground, the stake hole has been seted up at the top on external ground, the inside in stake hole is provided with the steel reinforcement cage body, the top on external ground is provided with the cover and establishes the connecting plate on steel reinforcement cage body surface, the left side fixedly connected with winch at connecting plate top, the left side and the equal fixedly connected with riser in right side at connecting plate top, the inboard of riser has positive and negative tooth lead screw through bearing swing joint, the left side on positive and negative tooth lead screw surface has the extrusion cover with the equal threaded connection in right side, the extrusion cover is kept away from one side cover of positive and negative tooth lead screw and is established the surface of steel reinforcement cage body, the left end of positive and negative tooth lead screw runs through to the left side of riser and is equipped with the sleeve pipe, the equal fixedly connected with helical gear of sheathed tube left end and the output of winch, helical gear intermeshing.

The bottom and the top of the inner wall of the sleeve are fixedly connected with sliding blocks, the top and the bottom of the positive and negative tooth lead screws are provided with sliding grooves, and the sliding blocks are connected with the sliding grooves in a sliding mode.

The surface of the winch output end is fixedly connected with a winding wheel positioned on the back of the bevel gear, a steel cable is wound on the surface of the winding wheel, a hook is fixedly connected to the right side of the top of the connecting plate, and one end, far away from the winding wheel, of the steel cable penetrates through the steel reinforcement cage body and is hung on the surface of the hook.

The connecting plate is fixedly connected with traction claws, and the number of the traction claws is four and the four traction claws are uniformly and symmetrically arranged.

The top of connecting plate is provided with the bolt that is located the draw claw inboard, the bottom of bolt runs through connecting plate and external ground in proper order and extends to the inside on external ground.

The utility model discloses a telescopic pipe, including sheathed tube, the telescopic surface cover is equipped with the control tube, the left side on sleeve pipe surface and the equal fixedly connected with in right side extend the ring that is located the control tube outside, the top fixedly connected with handle of control tube.

The utility model has the advantages as follows:

1. the utility model discloses a winch drives the helical gear rotatory, the helical gear passes through the sleeve pipe and drives the rotation of positive and negative tooth lead screw, positive and negative tooth lead screw promotes two extrusion covers and removes to the inboard, when the surface contact of extrusion cover and steel reinforcement cage body, the location to the steel reinforcement cage body is accomplished, avoid the steel reinforcement cage body axial offset or come-up to appear, the steel reinforcement cage of having solved current stake appears the phenomenon of come-up easily at the cement filling in-process, the light person comes up several centimetres to tens centimetres, the heavy person comes up several metres, whole floating even, there is the problem of very big harm to engineering quality and bearing capacity.

2. The utility model discloses a set up slider and spout, the transmission of sleeve pipe torsional force of can being convenient for improves the area of contact of sleeve pipe and positive and negative tooth lead screw.

3. The utility model discloses a set up wind-up wheel, steel cable and couple, can assist the extrusion cover to fix a position the steel reinforcement cage body, avoid the steel reinforcement cage body phenomenon of come-up to appear.

4. The utility model discloses a set up the pulling claw, can be convenient for remove the connecting plate, the quick installation of connecting plate isotructure of being convenient for.

5. The utility model discloses a set up the bolt, can be connected external ground and connecting plate, improve the stability of connecting plate, avoid the connecting plate to receive the influence of steel reinforcement cage body buoyancy.

6. The utility model discloses a set up the control tube, extend ring and handle, can be convenient for operate the sleeve pipe of pairing rotation in-process, avoid the sleeve pipe in the working process to injure.

Drawings

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

FIG. 2 is a schematic sectional view of the partial structure of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

fig. 4 is an enlarged schematic structural diagram of the point B in fig. 2 according to the present invention.

In the figure: 1. the ground is arranged outside; 2. pile holes; 3. a reinforcement cage body; 4. a connecting plate; 5. a winch; 6. a vertical plate; 7. a positive and negative tooth lead screw; 8. extruding a sleeve; 9. a sleeve; 10. a helical gear; 11. a slider; 12. a chute; 13. a winding wheel; 14. a wire rope; 15. hooking; 16. a traction claw; 17. a bolt; 18. an adjusting tube; 19. an extension ring; 20. a handle.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1 to 4, the utility model discloses an external ground 1, stake hole 2 has been seted up at external ground 1's top, the inside in stake hole 2 is provided with steel reinforcement cage body 3, external ground 1's top is provided with the cover and establishes connecting plate 4 on steel reinforcement cage body 3 surface, the left side fixedly connected with winch 5 at 4 tops of connecting plate, the left side and the equal fixedly connected with riser 6 in right side at 4 tops of connecting plate, there is positive and negative tooth lead screw 7 inboard through bearing swing joint, the left side and the equal threaded connection in right side on positive and negative tooth lead screw 7 surface have extrusion cover 8, extrusion cover 8 keeps away from a side cover of positive and negative tooth lead screw 7 and establishes the surface at steel reinforcement cage body 3, positive and negative tooth lead screw 7's left end runs through to riser 6 left side and overlaps and is equipped with sleeve pipe 9, the equal fixedly connected with helical gear 10 of the output of sleeve pipe 9 and winch 5, helical gear 10 intermeshing.

Referring to fig. 2, the bottom and the top of the inner wall of the sleeve 9 are both fixedly connected with a sliding block 11, the top and the bottom of the screw 7 with the front and the back teeth are both provided with a sliding groove 12, and the sliding block 11 is slidably connected with the sliding groove 12.

In this embodiment, the slider 11 and the sliding groove 12 are provided, so that the torque of the sleeve 9 can be transmitted conveniently, and the contact area between the sleeve 9 and the screw 7 with the positive and negative teeth can be increased.

Referring to fig. 4, a winding wheel 13 located on the back of the helical gear 10 is fixedly connected to the surface of the output end of the winch 5, a steel cable 14 is wound on the surface of the winding wheel 13, a hook 15 is fixedly connected to the right side of the top of the connecting plate 4, and one end, far away from the winding wheel 13, of the steel cable 14 penetrates through the steel reinforcement cage body 3 and is hung on the surface of the hook 15.

This embodiment can assist extrusion cover 8 to fix a position steel reinforcement cage body 3 through setting up winding wheel 13, steel cable 14 and couple 15, avoids steel reinforcement cage body 3 to appear the phenomenon of come-up.

Referring to fig. 4, the connecting plate 4 is fixedly connected with four pulling claws 16, and the pulling claws 16 are uniformly and symmetrically arranged.

This embodiment can be convenient for remove connecting plate 4 through setting up drawing claw 16, is convenient for the quick installation of connecting plate 4 isotructure.

Referring to fig. 4, a bolt 17 located inside the pulling claw 16 is arranged at the top of the connecting plate 4, and the bottom end of the bolt 17 penetrates through the connecting plate 4 and the external ground 1 in sequence and extends to the inside of the external ground 1.

This embodiment can be connected external ground 1 and connecting plate 4 through setting up bolt 17, improves connecting plate 4's stability, avoids connecting plate 4 to receive the influence of 3 buoyancy of steel reinforcement cage body.

Referring to fig. 3, the surface of the sleeve 9 is sleeved with an adjusting tube 18, the left side and the right side of the surface of the sleeve 9 are fixedly connected with extending rings 19 located outside the adjusting tube 18, and the top of the adjusting tube 18 is fixedly connected with a handle 20.

In the embodiment, the adjusting tube 18, the extending ring 19 and the handle 20 are arranged, so that the sleeve 9 in the rotating process can be conveniently operated, and the sleeve 9 in the working process can be prevented from being damaged.

The utility model moves the connecting plate 4 to the top of the external ground 1 through the mutual cooperation of the traction claw 16 and the external crane and corresponds to the axle center of the pile hole 2, when the steel reinforcement cage body 3 is inserted into the pile hole 2 and the height of the steel reinforcement cage body 3 is adjusted, the helical gear 10 is driven to rotate by the winch 5, the helical gear 10 drives the positive and negative lead screw 7 to rotate through the sleeve 9, the positive and negative lead screw 7 pushes the two extrusion sleeves 8 to move inwards, when the extrusion sleeves 8 are contacted with the surface of the steel reinforcement cage body 3, the sleeve 9 is pulled to move towards the right side by the handle 20 and the adjusting pipe 18, so that the two helical gears 10 are separated from contact, thereby completing the positioning of the steel reinforcement cage body 3, avoiding the axial deviation of the steel reinforcement cage body 3, in the rotating process of the winch 5, the winding wheel 13 releases the steel cable 14, one end of the steel cable 14 far away from the winding wheel 13 penetrates through the steel reinforcement cage body, can carry on spacingly to steel reinforcement cage body 3, avoid steel reinforcement cage body 3 to appear the phenomenon of come-up.

Claims

1. The utility model provides an improve structure of bored concrete pile bearing capacity, includes external ground (1), its characterized in that: the steel reinforcement cage is characterized in that a pile hole (2) is formed in the top of the external ground (1), a steel reinforcement cage body (3) is arranged inside the pile hole (2), a connecting plate (4) sleeved on the surface of the steel reinforcement cage body (3) is arranged at the top of the external ground (1), a winch (5) is fixedly connected to the left side of the top of the connecting plate (4), vertical plates (6) are fixedly connected to the left side and the right side of the top of the connecting plate (4), positive and negative threaded screws (7) are movably connected to the inner sides of the vertical plates (6) through bearings, extrusion sleeves (8) are in threaded connection with the left side and the right side of the surfaces of the positive and negative threaded screws (7), one side, far away from the positive and negative threaded screws (7), of each extrusion sleeve (8) is sleeved on the surface of the steel reinforcement cage body (3), the left end of the positive, the left end of the sleeve (9) and the output end of the winch (5) are fixedly connected with bevel gears (10), and the bevel gears (10) are meshed with each other.

2. The structure for improving the bearing capacity of the bored pile according to claim 1, wherein: the bottom and the top of sleeve pipe (9) inner wall all fixedly connected with slider (11), spout (12) have all been seted up to the top and the bottom of positive and negative tooth lead screw (7), slider (11) and spout (12) sliding connection.

3. The structure for improving the bearing capacity of the bored pile according to claim 2, wherein: the surface fixed connection of winch (5) output is connected with wind-up pulley (13) that are located helical gear (10) back, the surface winding of wind-up pulley (13) has steel cable (14), the right side fixedly connected with couple (15) at connecting plate (4) top, steel cable (14) are kept away from the one end of wind-up pulley (13) and are run through steel reinforcement cage body (3) and hang and establish the surface at couple (15).

4. The structure for improving the bearing capacity of the bored pile according to claim 3, wherein: the traction device is characterized in that the connecting plate (4) is fixedly connected with four traction claws (16), and the four traction claws (16) are uniformly and symmetrically arranged.

5. The structure for improving the bearing capacity of the bored pile according to claim 4, wherein: the top of connecting plate (4) is provided with and is located bolt (17) of pulling claw (16) inboard, the bottom of bolt (17) runs through connecting plate (4) and external ground (1) in proper order and extends to the inside on external ground (1).

6. The structure for improving the bearing capacity of the bored pile according to claim 5, wherein: the surface cover of sleeve pipe (9) is equipped with control tube (18), the equal fixedly connected with in left side and the right side on sleeve pipe (9) surface is located extension ring (19) in control tube (18) outside, the top fixedly connected with handle (20) of control tube (18).