CN211279061U

CN211279061U - Precast concrete square pile tensioning device

Info

Publication number: CN211279061U
Application number: CN201922016844.6U
Authority: CN
Inventors: 秦裕雷
Original assignee: Qidong Nihui New Material Technology Co ltd
Current assignee: Qidong Nihui New Material Technology Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-08-18
Anticipated expiration: 2029-11-21

Abstract

The utility model discloses a precast concrete square pile tensioning device, including concrete forming device, tensioning subassembly and prestressing force tensioning machine, concrete forming device is including supporting base, horizontal riser, left riser, rectangle riser and right riser, fixed being equipped with on the riser of a left side and the fixed pneumatic fixture of tensioning muscle looks locking on the concrete reinforcement net, fixed being equipped with on the riser of the right side alternates the through-hole, tensioning subassembly include with fixed disk, stretch-draw lock nut, fixed cover, fixed sleeve and round pin axle, the annular turn-ups and the fixed spiro union of fixed cover left surface, the last fixed axle of prestressing force tensioning machine is through round pin axle and fixed sleeve pin joint, prestressing force tensioning machine is fixed to be located in the backup pad that supports the base right flank. The utility model discloses stretch-draw to the reinforcing bar is effectual, and the fixed reinforcing bar of being convenient for fix a position fast realizes that concrete reinforcing bar fixes a position stretch-draw fast and the concrete demoulding of being convenient for.

Description

Precast concrete square pile tensioning device

Technical Field

The utility model belongs to the technical field of the building, concretely relates to precast concrete square pile tensioning device.

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. This stored prestressing force, when the element is subjected to a tensile force generated by an external load, first counteracts the prestressing force in the concrete in the tension zone and then, as the load increases, puts the concrete in tension, which limits the elongation of the concrete and delays or does not cause cracks to appear, which is called prestressed concrete.

The prior art uses the stretch-draw machine to carry out the prestressing force stretch-draw to the reinforcing bar of precast concrete square pile when, because the reinforcing bar number is more, it is fixed inconvenient to the locking of reinforcing bar, the locking positioning steel bar that can not be quick carries out the stretch-draw to the reinforcing bar, and among the stretch-draw process, that one end that the stretch-draw machine was kept away from to the reinforcing bar is unset, because the reinforcing bar of keeping away from that one end of stretch-draw machine is not fixed, make the stretch-draw effect of reinforcing bar not good, and the demoulding of the inconvenient concrete of the stretch-draw machine of prior art precast concrete square pile takes out.

Therefore, the precast concrete square pile tensioning device which is good in tensioning effect, convenient for quickly positioning and fixing the reinforcing steel bars, capable of quickly positioning and tensioning the concrete reinforcing steel bars and convenient for demoulding concrete is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a precast concrete square pile tensioning device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a precast concrete square pile tensioning device comprises a concrete forming device, a tensioning assembly and a prestress tensioning machine, wherein the concrete forming device comprises a supporting base, two transverse vertical plates which are fixedly arranged on the top of the supporting base and symmetrically arranged in the front and back direction, a left vertical plate which is fixedly arranged on the top of the supporting base and fixedly connected with the left ends of the two transverse vertical plates, two rectangular vertical plates which are fixedly arranged on the top of the supporting base and arranged on the front and back sides of the right ends of the two transverse vertical plates, and a right vertical plate which is arranged on the outer side of the right end surface of the transverse vertical plate, two hydraulic cylinders are fixedly arranged on the outer side surfaces of the two rectangular vertical plates, the end parts of hydraulic rods on the two hydraulic cylinders are respectively and fixedly connected with the two right vertical plates, pneumatic fixtures which are locked and fixed with tensioning ribs on a concrete rib net are fixedly arranged on the left vertical plate, and, the tensioning assembly comprises a fixed sleeve and a pin shaft which are arranged on the right side face of the fixed cover, the fixed sleeve is fixedly arranged on the fixed plate, the tensioning assembly comprises a fixed disc, a tensioning locking nut, a fixed cover, and a fixed sleeve and a pin shaft which are fixedly arranged on the right side face of the fixed cover, an internal thread through hole which is inserted into a tensioning rib and screwed with the tensioning locking nut is fixedly arranged on the fixed plate, an annular flanging on the left side face of the fixed cover is fixedly screwed with the fixed disc, a fixed shaft on the prestress tensioning machine is in pin joint with the fixed sleeve through the pin shaft.

Preferably, the bottom of the right vertical plate is symmetrically and fixedly provided with two sliding blocks which are respectively in sliding connection with the two rectangular sliding grooves on the front side and the rear side of the top of the supporting base.

Preferably, the two rectangular sliding grooves are respectively arranged on the right sides of the two rectangular vertical plates.

Preferably, the annular flanging is fixed with the fixed disc in a threaded manner through four screws which are arranged in an annular equidistant manner.

Preferably, the annular flanging and the fixed disk are provided with four threaded through holes which are in threaded connection with the screw rod in an annular and equidistant arrangement mode.

Preferably, the fixed shaft is inserted into the fixed sleeve, and the fixed shaft and the fixed sleeve are both provided with pin holes connected with the pin shaft in a pin joint mode.

Preferably, a forming die is inserted into a gap between the two transverse vertical plates and the left vertical plate and the right vertical plate.

The utility model discloses a technological effect and advantage: this precast concrete square pile tensioning device, the reinforcing bar net is placed in forming die, the one end of reinforcing bar net runs through in forming die and left riser, simultaneously by the one-to-one tight one end of fixed reinforcing bar of pneumatic fixture on the riser of a left side, the other end of reinforcing bar runs through in fixed disk and fixed disk, it is fixed to be locked by the fixed tensioning lock nut of spiro union on the fixed disk, then it is fixed with the fixed disk spiro union with the annular turn-ups on the fixed cover, reinforcing bar and fixed cover are pegged graft with the fixed axle of prestressing force tensioning machine through the fixed sleeve on the fixed cover, fixed sleeve and fixed axle are fixed through the round pin axle finally, make things convenient for the quick connect location of tensioning machine and reinforcing bar, make things convenient for the tensioning of tensioning machine to the reinforcing bar, right side riser can the back-and-forth.

Drawings

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

FIG. 2 is a schematic structural view of the concrete forming apparatus of the present invention;

fig. 3 is a schematic structural diagram of the tension assembly of the present invention.

In the figure: 1. a concrete forming device; 2. a tensioning assembly; 3. a pre-stress tensioning machine; 4. a support base; 5. a transverse vertical plate; 6. a left vertical plate; 7. a rectangular vertical plate; 8. a right vertical plate; 9. a hydraulic cylinder; 10. a rectangular chute; 11. a pneumatic clamp; 12. inserting through holes; 13. fixing the disc; 14. tensioning the locking nut; 15. a fixed cover; 16. fixing the sleeve; 17. a pin shaft; 18. an internally threaded through bore; 19. annular flanging; 20. a screw; 21. a fixed shaft; 22. a support plate; 23. a threaded through hole; 24. a pin hole; 25. and (5) forming a die.

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.

The utility model provides a precast concrete square pile tensioning device as shown in fig. 1-3, including concrete forming device 1, tensioning subassembly 2 and prestressing force tensioning machine 3, concrete forming device 1 includes support base 4, two horizontal risers 5 that are fixed to be located the top of support base 4 and symmetrical setting around and, fixed left riser 6 that is located the top of support base 4 and fixed connection with two horizontal risers 5 left ends, two rectangle risers 7 that are fixed to be located the top of support base 4 and locate two horizontal risers 5 right-hand member front and back both sides and right riser 8 that locate the horizontal riser 5 right-hand member outside, two have a forming die 25 to peg graft in the clearance between horizontal riser 5 and left riser 6 and right riser 8, it is convenient to the installation of forming die 25, and convenient dismantlement;

two hydraulic cylinders 9 are fixedly arranged on the outer side surfaces of the two rectangular vertical plates 7, the end parts of hydraulic rods on the two hydraulic cylinders 9 are respectively and fixedly connected with the two right vertical plates 8, two sliding blocks which are respectively and slidably connected with the two rectangular sliding grooves 10 on the front side and the rear side of the top of the supporting base 4 are symmetrically and fixedly arranged on the front side and the rear side of the bottom of the right vertical plate 8, the two rectangular sliding grooves 10 are respectively arranged on the right sides of the two rectangular vertical plates 7, the rectangular sliding grooves 10 are slidably connected with the sliding blocks on the bottom of the right vertical plate 8, and after the tensioned redundant steel bars are cut, the hydraulic cylinders 9 push the right vertical plates;

the left vertical plate 6 is fixedly provided with a pneumatic clamp 11 which is locked and fixed with a tensioning rib on a concrete steel bar net, the right vertical plate 8 is fixedly provided with an inserting through hole 12 which is inserted into the right vertical plate 8, the steel bar net is placed in the forming die 25, one end of the steel bar net penetrates through the forming die 25 and the left vertical plate 6, and meanwhile, the pneumatic clamp 11 on the left vertical plate 6 clamps and fixes one end of the steel bar one by one, so that one end of the steel bar is fixed conveniently and the steel bar is tensioned conveniently;

the tensioning component 2 comprises a fixed sleeve 16 and a pin shaft 17 which are fixedly arranged on the right side surface of the fixed cover 15, a fixed plate 13, a tensioning locking nut 14, a fixed cover 15, and a fixed sleeve 16 and a pin shaft 17 which are fixedly arranged on the right side surface of the fixed cover 15, wherein the fixed plate 13 is fixedly provided with an internal thread through hole 18 which is inserted with a tensioning rib and is screwed with the tensioning locking nut 14, the annular flanging 19 on the left side surface of the fixed cover 15 is fixedly screwed with the fixed plate 13, the annular flanging 19 is fixedly screwed with the fixed plate 13 through four screw rods 20 arranged at equal intervals in an annular shape, the annular flanging 19 and the fixed plate 13 are provided with four screw thread through holes 23 which are screwed with the screw rods 20 in an annular shape at equal intervals, a fixed shaft 21 on the prestress tensioning machine 3 is in pin joint with the fixed sleeve 16 through the pin shaft 17, the fixed shaft 21 is in, prestressing force stretch-draw machine 3 is fixed to be located on the backup pad 22 that supports 4 right flank of base, the other end of reinforcing bar runs through in fixed disk 13 and fixed disk 13, it is fixed to be locked by the fixed stretch-draw lock nut 14 of spiro union on the fixed disk 13, then it is fixed with fixed disk 13 spiro union with annular turn-ups 19 on the fixed cover 15, reinforcing bar and fixed cover 15 peg graft with prestressing force stretch-draw machine 3's fixed axle 21 through the fixed sleeve 16 on the fixed cover 15, fix fixed sleeve 16 and fixed axle 21 through round pin axle 17 at last, make things convenient for the quick-operation connection location of stretch-draw machine and reinforcing bar, make things convenient for the stretch-draw machine to.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a precast concrete square pile tensioning device, includes concrete forming device (1), stretch-draw subassembly (2) and prestressing force stretch-draw machine (3), its characterized in that: the concrete forming device (1) comprises a supporting base (4), two transverse vertical plates (5) which are fixedly arranged at the top of the supporting base (4) and symmetrically arranged in the front and back directions, a left vertical plate (6) which is fixedly arranged at the top of the supporting base (4) and fixedly connected with the left ends of the two transverse vertical plates (5), two rectangular vertical plates (7) which are fixedly arranged at the top of the supporting base (4) and are arranged at the front and back sides of the right ends of the two transverse vertical plates (5) and a right vertical plate (8) which is arranged at the outer side of the right end surface of the transverse vertical plate (5), two hydraulic cylinders (9) are fixedly arranged on the outer side surfaces of the two rectangular vertical plates (7), the end parts of hydraulic rods on the two hydraulic cylinders (9) are respectively and fixedly connected with the two right vertical plates (8), pneumatic fixtures (11) which are fixedly locked with tensioning ribs on a concrete steel bar net are fixedly arranged on the left vertical plate (6), through holes (12) which, stretch-draw subassembly (2) include with fixed disk (13), stretch-draw lock nut (14), fixed cover (15), fixed sleeve (16) and round pin axle (17) of locating fixed cover (15) right flank, fixed being equipped with on fixed disk (13) alternate with the stretch-draw muscle and with internal thread through-hole (18) of stretch-draw lock nut (14) looks spiro union, the annular turn-ups (19) and the fixed spiro union of fixed disk (13) of fixed cover (15) left surface, fixed axle (21) on prestressing force stretch-draw machine (3) are through round pin axle (17) and fixed sleeve (16) pin joint, prestressing force stretch-draw machine (3) are fixed to be located on backup pad (22) of supporting base (4) right flank.

2. A precast concrete square pile tension device according to claim 1, wherein: the front and back of the bottom of the right vertical plate (8) are symmetrically and fixedly provided with two sliding blocks which are respectively in sliding connection with the two rectangular sliding grooves (10) on the front side and the back side of the top of the supporting base (4).

3. A precast concrete square pile tension device according to claim 2, wherein: the two rectangular sliding grooves (10) are respectively arranged on the right sides of the two rectangular vertical plates (7).

4. A precast concrete square pile tension device according to claim 1, wherein: the annular flanging (19) is in threaded connection and fixed with the fixed disc (13) through four screw rods (20) which are annularly arranged at equal intervals.

5. The precast concrete square pile tension device according to claim 4, wherein: the annular flanging (19) and the fixed disk (13) are provided with four threaded through holes (23) which are in threaded connection with the screw rod (20) in an annular and equidistant arrangement mode.

6. A precast concrete square pile tension device according to claim 1, wherein: the fixed shaft (21) is inserted into the fixed sleeve (16), and pin holes (24) which are in pin joint with the pin shaft (17) are formed in the fixed shaft (21) and the fixed sleeve (16).

7. A precast concrete square pile tension device according to claim 1, wherein: and a forming die (25) is inserted in a gap between the two transverse vertical plates (5) and the left vertical plate (6) and the right vertical plate (8).