CN210238485U

CN210238485U - Prevent precast pile for building of come-up

Info

Publication number: CN210238485U
Application number: CN201920666707.4U
Authority: CN
Inventors: Zhiguo Zhang; 张治国; Hui Qiao; 谯慧; Jiandong Liu; 刘建东
Original assignee: Jinan Changxing Construction Group Co ltd
Current assignee: Jinan Changxing Construction Group Co ltd
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2020-04-03
Anticipated expiration: 2029-05-10

Abstract

The utility model belongs to the technical field of ground piles for buildings, in particular to a precast pile for buildings, which prevents floating upwards and comprises a pile body and a pile tip, wherein a cavity is arranged in the pile body, the upper side of the pile body is provided with a protection plate which is inserted and connected, the lower part of the pile body is provided with a through hole which penetrates through the cavity to form support holes which are positioned at the left side and the right side of the cavity, an annular steel plate is fixed on the inner wall of the supporting hole, a transverse rod is arranged in the annular steel plate, one end of the transverse rod, which is far away from the cavity, is a conical end, helical blades are arranged on a section of the transverse rods close to the conical end in the circumferential direction, concave strips are arranged on a section of the transverse rods far away from the conical end, a sleeving block is sleeved outside the two transverse rods, the inner wall of the sleeve joint block is provided with a convex strip matched with the concave strip, the inner wall of the annular steel plate is provided with a spiral tooth groove meshed with the spiral blade, the foundation is grabbed by the transverse rods of the precast pile, so that the precast pile is more stable, and the precast pile for building is prevented from floating upwards.

Description

Prevent precast pile for building of come-up

Technical Field

The utility model belongs to the technical field of ground stake for the building, concretely relates to prevent precast pile for building of come-up.

Background

Precast piles, which are prefabricated on site at or near the piling site, shorter piles can also be produced in a prefabrication plant. Its advantage is: the precast pile has the advantages of low production cost, small reinforcement ratio, steel saving, environmental protection of the hollow pile, small diameter, large specific surface area, large bearing capacity of single concrete, simple construction and low technical difficulty. The disadvantages are as follows: for the extruded precast concrete pile and the steel pile, the pile body floats upwards, the bearing capacity is reduced, and the settlement is increased.

SUMMERY OF THE UTILITY MODEL

In order to solve the deficiency that prior art exists, the utility model discloses a prevent precast pile for building of come-up, the ground is grabbed to the transverse bar of this precast pile, makes the precast pile more stable to prevent the come-up of precast pile for building.

The utility model discloses a following technical scheme realizes:

a precast pile for preventing floating upward for a building comprises a pile body with a cavity arranged inside, a pile tip is fixed at the lower end of the pile body, a slot is arranged on the upper end surface of the pile body, a protection plate is arranged on the upper side of the pile body, a vertical insertion rod is arranged at the bottom of the protection plate and is inserted in the slot,

the lower part of the pile body is provided with a through hole penetrating through the cavity to form support holes positioned at the left side and the right side of the cavity, the inner wall of each support hole is fixed with an annular steel plate, a transverse rod is arranged in each annular steel plate, one end, far away from the cavity, of each transverse rod is arranged to be a conical end, a section, close to the conical end, of each transverse rod is circumferentially provided with a helical blade, one section, far away from the conical end, of each transverse rod extends into the cavity, the outer side of each transverse rod is provided with a concave strip, the two transverse rods abut against each other in the cavity, the outer part of each transverse rod is sleeved with a sleeving block with an annular cross section, the inner wall of,

an auxiliary belt pulley is circumferentially fixed on the outer side of the sleeving piece, a belt is arranged on the auxiliary belt pulley, and the other end of the belt penetrates through a through hole in the protection plate and is connected with a driving belt pulley.

Furthermore, the outer side of the pile body is in a gear shape with an inner concave surface.

Further, the pile body and the pile tip are integrally formed.

Furthermore, 4-6 rows of support holes are arranged along the longitudinal direction of the pile body.

Furthermore, the included angle of two adjacent rows of support holes is 45-60 degrees.

Compared with the prior art, the utility model has the advantages of it is following:

the utility model discloses a prevent precast pile for building of come-up can pile sinking earlier, then inserts horizontal transverse bar at the precast pile lower extreme, increases the stability of this precast pile, and when the precast pile come-up, the ground can be grabbed to the transverse bar, prevents the come-up.

Drawings

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

FIG. 2 is a view showing a connection structure of the annular steel plate and the transverse bar;

FIG. 3 is a sectional view of the connection of the splicing block and the transverse rod;

in the figure, 1, a pile body; 2. pile tip; 3. a cavity; 4. a slot; 5. a protection plate; 6. inserting a rod; 7. a support hole; 8. an annular steel plate; 9. a transverse bar; 10. a tapered end; 11. a helical blade; 12. concave strips; 13. sleeving and connecting blocks; 14. a convex strip; 15. a helical tooth space; 16. an auxiliary pulley; 17. a belt; 18. a drive pulley; 19. a rotating shaft; 20. a motor drive system.

Detailed Description

In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail below by means of specific embodiments and with reference to the attached drawings, and the technical solutions not described in detail in the present invention can refer to the background art or the prior art.

Fig. 1-3 show the schematic structural diagram of the utility model, the precast pile for building for preventing floating upward comprises a pile body 1 with a cavity 3 arranged therein, a pile tip 2 is fixed at the lower end of the pile body 1, a slot 4 is arranged on the upper end surface of the pile body 1, a protection plate 5 is arranged on the upper side of the pile body 1, a vertical inserted bar 6 is arranged at the bottom of the protection plate 5, the inserted bar 6 is inserted in the slot 4,

the lower part of the pile body 1 is provided with a through hole penetrating through the cavity 3 to form support holes 7 (reinforcing steel bars inside the pile body are staggered with the support holes 7), annular steel plates 8 (the outer sides of the annular steel plates 8 can be welded on the reinforcing steel bars inside the pile body) are fixed on the inner walls of the support holes 7, transverse rods 9 are arranged in the annular steel plates 8, one ends, far away from the cavity 3, of the transverse rods 9 are arranged to be conical ends 10, spiral blades 11 are arranged on the sections, close to the conical ends 10, of the transverse rods 9 in the circumferential direction, one sections, far away from the conical ends 10, of the transverse rods 9 extend into the cavity 3, concave strips 12 are arranged on the outer sides of the transverse rods 9, two transverse rods 9 abut against each other in the cavity 3, a socket block 13 with an annular cross section is sleeved on the outer part of the transverse rods 9, convex strips 14 matched with the concave strips 12 are,

an auxiliary belt pulley 16 is circumferentially fixed on the outer side of the sleeving connection block 13, a belt 17 is arranged on the auxiliary belt pulley 16, and the other end of the belt 17 penetrates through a through hole in the protection plate 5 to be connected with a driving belt pulley 18.

The manufacturing process comprises the following steps:

firstly, an integrally formed pile body 1 with a support hole 7 (an annular steel plate 8 is fixed on the inner side of the support hole 7, the outer side of the annular steel plate 8 is welded with a steel bar in the pile body 1) and a pile tip 2 are manufactured, then a sleeving block 13 with a belt 17 and an auxiliary belt pulley 16 is placed in a cavity 3, a transverse rod 9 is inserted into the sleeving block 13 on the outer side of the support hole 7 to enable a conical end 10 of the support rod 9 to be contracted in the support hole 7, then a protection plate 5 is inserted,

the use process comprises the following steps:

the precast pile is pressed into the foundation, the belt 17 passes through the protection plate 5 to be connected with the driving belt pulley 18, the driving belt pulley 18 is fixed on a rotating shaft 19, the rotating shaft 19 is fixed on a motor driving system 20 through a speed reducer, the motor driving system 20 drives the rotating shaft 19 and the driving belt to rotate 18, then the belt 17 drives the auxiliary belt pulley 16 and the sleeve joint block 13 to rotate, then the transverse rod 9 is driven to rotate, the transverse rod 9 rotates outwards due to the action of the helical blades 11 and the helical tooth grooves 15, and the transverse rod 9 is drilled into the foundation around the precast pile due to the action of the tapered end 10 to form a transverse stable structure, so that the precast pile is prevented from floating upwards, the foundation is favorably taken off, and the precast pile is more stable,

after the transverse rod 9 drills into the foundation for a certain distance, the transverse rod 9 is separated from the sleeving block 13 (the motor driving system 20 rotates at a low speed to prevent the sleeving block 13 from jumping and hitting the protection plate 5), the protection plate 5 is opened, and the sleeving block 13 can be sucked out and recycled by using magnets and the like.

In a preferred embodiment, the outer side of the pile body 1 is in the shape of a gear with an inner concave surface. The contact area between the gear and the foundation can be increased due to the shape of the gear, and the pressing difficulty can be reduced.

In a preferred embodiment, the shaft 1 is integrally formed with the tip 2.

In a preferred embodiment, the support holes 7 are arranged in 4-6 rows along the longitudinal direction of the pile body 1 (only one row of support hole machine internal structure is shown in the figure). The sleeve joint block 13 is separated from top to bottom, so that the interference of the upper layer transverse rod 9 to the lower layer transverse rod 9 is prevented.

As a preferred embodiment, the included angle of two adjacent rows of supporting holes 7 is 45-60 degrees, and the transverse rods 9 drilled into the foundation by the multiple rows of staggered supporting holes 7 are distributed in different directions, so that the precast pile is more stable.

The present invention is not described in detail, but is well known to those skilled in the art. Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a prevent precast pile for building of come-up, establishes the pile body of cavity in including, the pile body lower extreme is fixed with stake point, its characterized in that: the upper end surface of the pile body is provided with a slot, the upper side of the pile body is provided with a protection plate, the bottom of the protection plate is provided with a vertical inserted bar, the inserted bar is inserted in the slot,

2. The precast pile for construction for preventing floating up according to claim 1, wherein: the outer side of the pile body is in a gear shape with an inner concave surface.

3. The precast pile for construction for preventing floating up according to claim 1, wherein: the pile body and the pile tip are integrally formed.

4. The precast pile for construction for preventing floating up according to claim 1, wherein: 4-6 rows of support holes are arranged along the longitudinal direction of the pile body.

5. The precast pile for construction to prevent floating up according to claim 4, wherein: the included angle of two adjacent rows of support holes is 45-60 degrees.