CN212612419U

CN212612419U - Partial prestressed concrete square pile capable of reducing box girder cracking

Info

Publication number: CN212612419U
Application number: CN202020466792.2U
Authority: CN
Inventors: 崔志龙
Original assignee: Jiangsu Yanfa Pile Industry Co Ltd
Current assignee: Jiangsu Yanfa Pile Industry Co Ltd
Priority date: 2020-04-02
Filing date: 2020-04-02
Publication date: 2021-02-26
Anticipated expiration: 2030-04-02

Abstract

The utility model relates to a tubular pile technical field just discloses the partial prestressed concrete square pile that can reduce case roof beam fracture, including the concrete piece, the skin weld of first hoop has the sleeve, the tail end welding of rings has first threaded rod, spacing groove and first thread groove have been seted up to the even equidistance in surface of extension piece, the inside connecting bolt that is provided with of connecting hole, and connecting bolt's tail end stretches into the inside of first thread groove. This can reduce partial prestressed concrete square pile of case roof beam fracture through setting up sleeve, first threaded rod, connecting bolt and second bolt groove, makes the utility model discloses have convenient installation function and higher security performance, make things convenient for the staff to carry out fixed mounting rings, make things convenient for handling concrete square pile, simultaneously, can dismantle rings, realize the reuse, improve resource utilization, reduce manufacturing cost, and through dismouting conical head, effectively avoid the staff to be pricked by the conical head under the condition of working negligence, improve the security.

Description

Partial prestressed concrete square pile capable of reducing box girder cracking

Technical Field

The utility model relates to a tubular pile is restrainted technical field, specifically is the partial prestressed concrete square pile that can reduce case roof beam fracture.

Background

Prestressed concrete is to compensate for the early occurrence of cracks in concrete, and before a member is used (loaded), a prestress is applied to the concrete in advance, namely, in a tension area of the concrete, a reinforcing steel bar is tensioned by a manual force method, and the tension area of the concrete is stressed in advance by utilizing the retraction force of the reinforcing steel bar. The stored prestressing force firstly counteracts the prestressing force in the concrete in the tension area when the member is subjected to a tensile force generated by an external load, and then the concrete is tensioned as the load increases, so that the elongation of the concrete is limited, and cracks are delayed or not caused to appear. The centrifugal formed pre-tensioned prestressed concrete hollow square pile is a novel precast pile, and has the advantages of high bearing capacity, short production period, material saving and the like. The production process is advanced, scientific and mature, has reasonable reinforcement, and is environment-friendly and energy-saving.

At present, concrete square pile is convenient for fix subaerial, the cone is seted up in the bottom of square pile to traditional mode, conveniently beat the nail and go into subaerially, but because current cone all is the integral type shaping, lead to in the in-process of using, if worker carelessness hits when the front end at the cone by accident, very easily be stabbed, bring very big danger for the staff easily, factor of safety is low, and simultaneously, because of concrete square pile volume is great, need hoist and mount the transport at the in-process of transport, nevertheless current square pile all is through pouring rings before the shaping, it is troublesome to lead to the rings on later stage square pile surface to demolish, consequently, need improve it.

SUMMERY OF THE UTILITY MODEL

The utility model is not enough to prior art, the utility model provides a can reduce partial prestressed concrete square pile of case roof beam fracture, possess convenient installation function and higher security performance's advantage, it is subaerial for fixed mounting to have solved current concrete square pile, welding cone usually on the square pile end plate, lead to the in-process using, easily hit at the cone because of staff negligence, thereby bring very big life danger for the staff, factor of safety is low, and simultaneously, because of concrete square pile is bulky, in-process at the transport need hoist and mount, nevertheless traditional hoist and mount are through before the square pile shaping integral type pour rings, it is troublesome to lead to rings later stage demolish.

The utility model provides a following technical scheme: the partial prestressed concrete square pile capable of reducing the cracking of the box girder comprises a concrete block, wherein a first hoop, a second hoop and a steel bar body are arranged inside the concrete block, the surface of the first hoop is welded with a sleeve, the surface of the concrete block is symmetrically provided with hanging rings, the tail end of the hanging ring is welded with a first threaded rod, both sides of the concrete block are provided with end plates, a groove is arranged in the middle of the end plate, the side wall of the groove is evenly provided with limiting blocks at equal intervals, the four sides of the end plate are all provided with connecting holes, one side of the end plate is provided with a conical head, the tail end of the conical head is provided with an extending block, spacing groove and first thread groove have been seted up to the even equidistance in surface of extension piece, connecting hole inside is provided with connecting bolt, and connecting bolt's tail end stretches into the inside of first thread groove.

Preferably, a central through hole is formed in the middle of the concrete block, a steel bar body is arranged between the first hoop and the second hoop, and the second hoop is arranged on the inner side of the first hoop.

Preferably, the extension block is arranged inside the groove, and the limiting block is arranged inside the limiting groove.

Preferably, the sleeve is provided with a second thread groove in the inside, and the first threaded rod is provided in the inside of the second thread groove.

Preferably, the surface of end plate evenly is provided with the mounting hole, the second threaded rod has all been welded at the both ends of reinforcing bar body, and the tail end of second threaded rod all stretches into the inside of mounting hole.

Preferably, the tail end of the second threaded rod is sleeved with a fixing nut.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. this can reduce partial prestressed concrete square pile of case roof beam fracture through setting up rings, sleeve and first threaded rod, makes the utility model discloses have convenient installation function, make things convenient for the staff to carry out fixed mounting rings, make things convenient for handling concrete square pile, simultaneously, can dismantle rings, realize the reuse, improve resource utilization, reduce manufacturing cost, when using, the staff can insert telescopic inside with the first threaded rod of rings tail end to make its cooperation second thread groove realize fixing through rotating rings.

2. This can reduce partial prestressed concrete square pile of case roof beam fracture, through setting up first thread groove and connecting bolt, make the utility model discloses higher security performance has, the dismouting conical head is conveniently passed through, effectively avoid the staff to be pricked by the conical head under the condition of work negligence, thereby improve the security, when using, the inside of recess is inserted with the extension piece of conical head afterbody to the staff, and insert the inside of spacing groove with the stopper, realize spacingly, and then can insert the inside of connecting bolt connecting hole, and the inside of the first thread groove of continuous twist, realize the fixed conical head of installation, on the contrary, when stacking the storage, can pull down the conical head, effectively avoid the staff to hit the conical head and receive fatal injury in negligence, thereby improve the erectility.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic cross-sectional structure of the present invention;

FIG. 3 is a schematic view of the end plate structure of the present invention;

FIG. 4 is a schematic view of a cone structure according to the present invention;

FIG. 5 is a schematic view of the structure of the hanging ring of the present invention;

fig. 6 is the utility model discloses the reinforcing bar body sketch map.

In the figure: 1. a concrete block; 2. an end plate; 3. a conical head; 4. a first hoop; 5. a steel bar body; 6. a connecting bolt; 7. a hoisting ring; 8. a second hoop; 9. a central through hole; 10. mounting holes; 11. a groove; 12. connecting holes; 13. a limiting block; 14. an extension block; 15. a limiting groove; 16. a first thread groove; 17. a sleeve; 18. a first threaded rod; 19. a second thread groove; 20. a second threaded rod; 21. and (5) fixing the screw cap.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, a partially prestressed concrete square pile capable of reducing the cracking of a box girder includes a concrete block 1, a first hoop 4, a second hoop 8 and a steel bar body 5 are disposed inside the concrete block 1, a central through hole 9 is disposed at a middle position of the concrete block 1, the steel bar body 5 is disposed between the first hoop 4 and the second hoop 8, the second hoop 8 is disposed inside the first hoop 4, a sleeve 17 is welded on a surface of the first hoop 4, a second thread groove 19 is disposed inside the sleeve 17, lifting rings 7 are symmetrically disposed on a surface of the concrete block 1, a first threaded rod 18 is welded at a tail end of the lifting rings 7, the first threaded rod 18 is disposed inside the second thread groove 19, end plates 2 are disposed on both sides of the concrete block 1, mounting holes 10 are uniformly disposed on surfaces of the end plates 2, and second threaded rods 20 are welded at both ends of the steel bar body 5, the tail end of the second threaded rod 20 extends into the mounting hole 10, the tail end of the second threaded rod 20 is sleeved with a fixing nut 21, so that a worker can conveniently sleeve the end plate 2 on the second threaded rod 20 through the mounting hole 10 and can fasten and fix the second threaded rod 20 through the fixing nut 21 to realize quick mounting, a groove 11 is formed in the middle position of the end plate 2, limit blocks 13 are uniformly and equidistantly arranged on the side wall of the groove 11, connecting holes 12 are formed in four side surfaces of the end plate 2, a conical head 3 is arranged on one side of the end plate 2, an extension block 14 is arranged at the tail end of the conical head 3, the extension block 14 is arranged inside the groove 11, limit grooves 15 and first thread grooves 16 are uniformly and equidistantly formed in the surface of the extension block 14, the limit blocks 13 are arranged inside the limit grooves 15, so that the limit blocks 13 can be conveniently inserted into the limit grooves 15 to realize positioning, and conveniently calibrate the connecting holes 12 and the first thread grooves 16, the installation rate is improved, the connection hole 12 is internally provided with the connection bolt 6, and the tail end of the connection bolt 6 is inserted into the inside of the first thread groove 16.

During operation, the staff inserts rings 7 the inside of sleeve 17, and make it realize screwing up through rotating rings 7, the convenience hangs the couple on rings 7 when hoist and mount, the efficiency of handling is improved, simultaneously, the staff puts end plate 2 at the both ends of concrete block 1, overlap end plate 2 on second threaded rod 20 through mounting hole 10, and screw up fixedly through fixation nut 21, realize swift installation, and the staff can insert the inside of recess 11 with extension piece 14 of 3 afterbody of hammer head, make it pass through stopper 13 card in the inside of spacing groove 15, and then the staff can insert the inside of connecting bolt 6 in connecting hole 12, and twist the inside of first thread groove 16 constantly, realize the fixed cone head 3 of installation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Can reduce partial prestressed concrete square pile of case roof beam fracture, including concrete block (1), its characterized in that: the concrete block comprises a concrete block (1), and is characterized in that a first hoop (4), a second hoop (8) and a steel bar body (5) are arranged inside the concrete block (1), a sleeve (17) is welded on the surface of the first hoop (4), hoisting rings (7) are symmetrically arranged on the surface of the concrete block (1), a first threaded rod (18) is welded at the tail end of each hoisting ring (7), end plates (2) are arranged on two sides of the concrete block (1), a groove (11) is formed in the middle position of each end plate (2), limit blocks (13) are uniformly arranged on the side walls of each groove (11) at equal intervals, connecting holes (12) are formed in four side surfaces of each end plate (2), a conical head (3) is arranged on one side of each end plate (2), an extension block (14) is arranged at the tail end of each conical head (3), and limit grooves (15) and first threaded grooves (16) are uniformly arranged on the surface of each extension block, a connecting bolt (6) is arranged in the connecting hole (12), and the tail end of the connecting bolt (6) extends into the first thread groove (16).

2. The partially prestressed concrete square pile capable of reducing box girder cracking according to claim 1, wherein: the concrete block is characterized in that a central through hole (9) is formed in the middle of the concrete block (1), a steel bar body (5) is arranged between the first hoop (4) and the second hoop (8), and the second hoop (8) is arranged on the inner side of the first hoop (4).

3. The partially prestressed concrete square pile capable of reducing box girder cracking according to claim 1, wherein: the extension block (14) is arranged inside the groove (11), and the limiting block (13) is arranged inside the limiting groove (15).

4. The partially prestressed concrete square pile capable of reducing box girder cracking according to claim 1, wherein: the sleeve (17) is provided with a second thread groove (19) inside, and the first threaded rod (18) is arranged inside the second thread groove (19).

5. The partially prestressed concrete square pile capable of reducing box girder cracking according to claim 1, wherein: the surface of end plate (2) evenly is provided with mounting hole (10), second threaded rod (20) have all been welded at the both ends of reinforcing bar body (5), and the tail end of second threaded rod (20) all stretches into the inside of mounting hole (10).

6. The partially prestressed concrete square pile capable of reducing box girder cracking according to claim 5, wherein: the tail end of the second threaded rod (20) is sleeved with a fixing nut (21).