CN212528178U

CN212528178U - Threading head for assembled concrete box girder

Info

Publication number: CN212528178U
Application number: CN202020842396.5U
Authority: CN
Inventors: 王攀科; 张祥瑞
Original assignee: Hubei Yichang Panke Pre Stress Technology Services Co ltd
Current assignee: Hubei Yichang Panke Pre Stress Technology Services Co ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2021-02-12
Anticipated expiration: 2030-05-19

Abstract

The utility model provides a threading head for an assembled concrete box girder, which comprises a thread take-up sleeve and a traction head which are connected by screw threads, wherein the thread take-up sleeve is cylindrical, a thread passing hole is arranged in the center, the thread passing hole is provided with a thread take-up area and a stable area, the diameter of the thread take-up area is trumpet-shaped and gradually shrinks towards the stable area, the stable area is of a standard cylindrical hole structure, a step is arranged on the excircle of the thread take-up sleeve close to the stable area, and an external screw thread is arranged on the step; the drawing head is bullet-shaped, and the drawing head afterbody is provided with the blind hole, is provided with the external screw thread connection of internal thread and receipts line cover on the blind hole, and the drawing head front end sets up the traction hole and runs through to the blind hole, and haulage rope one end is fixed in the blind hole, and the other end passes the outside extension of traction hole. The utility model discloses simple structure, convenient to use has improved greatly and has worn and restraint efficiency and quality, has practiced thrift cost of labor and time cost, has good economic benefits.

Description

Threading head for assembled concrete box girder

Technical Field

The utility model relates to a building field especially relates to threading head for assembled concrete box girder.

Background

The fabricated concrete box is a reinforced concrete prefabricated component for buildings, and is often used for building engineering such as bridges, houses and the like. In the case of prefabrication, holes are usually reserved for the threading of cables, water pipes, steel wires, etc. during or after assembly. The existing stringing process generally adopts single stringing or whole stringing to stitch and weld the wire ends together and then uses a pulling rope to pull and string. Because the section of borrowing of assembled concrete box is more, can not align completely between the hole when assembling, has the deviation, has increased the damping that the stitch welding end of a thread was worn to restraint, and is inefficient, and outer end of a thread hangs easily moreover, leads to pulling apart of haulage rope even, and it can be very troublesome to handle.

SUMMERY OF THE UTILITY MODEL

The utility model provides an assembly type concrete box threading head for roof beam can accomplish the work of wearing to restraint of pencil such as cable in the assembly type concrete box.

The utility model discloses a realize through following technical scheme:

the threading head for the fabricated concrete box girder comprises a thread take-up sleeve and a traction head which are connected by threads, wherein the thread take-up sleeve is cylindrical, a thread through hole is formed in the center of the thread take-up sleeve, the thread through hole is provided with a thread take-up area and a stable area, the diameter of the thread take-up area is horn-shaped and gradually shrinks towards the stable area, the stable area is of a cylindrical hole structure, a step is arranged on the excircle, close to the stable area, of the thread take-up sleeve, and an external thread is arranged on the step; the drawing head is bullet-shaped, and the drawing head afterbody is provided with the blind hole, is provided with the internal thread on the blind hole, and the internal thread is connected with the external screw thread of receiving the line cover, and the drawing head front end sets up the traction hole and runs through to the blind hole, and haulage rope one end is fixed in the blind hole, and the other end passes the outside extension in traction hole.

Furthermore, a wire collecting plate is further arranged at one end, close to the traction head, of the wire collecting sleeve, the diameter of the wire collecting plate is larger than that of the stable area, the diameter of the wire collecting plate is smaller than that of the threads of the traction head, and a plurality of wire passing holes are formed in the wire collecting plate.

Furthermore, the traction rope also comprises a traction rod and a fixing head with a hole in the center, the traction rod penetrates through the traction hole, one end of the traction rod, which is positioned inside the traction head, penetrates through the fixing head, the end part of the traction rod is connected with a locking nut to prevent the fixing head from being separated, and one end of the traction rod, which is positioned outside the traction head, is provided with a pull ring to be connected with the traction rope.

Furthermore, the connecting threads of the wire collecting sleeve and the traction head adopt trapezoidal threads.

Furthermore, the diameter of the excircle of the wire take-up sleeve is the same as the maximum diameter of the excircle of the traction head.

Furthermore, the wire collecting sleeve and the drawing head are both provided with hexagonal structures.

The utility model discloses simple structure, convenient to use, when pulling with the pencil receive the line cover and receive to restraint, utilize the traction head of bullet head pattern to pull with the haulage rope and advance, improved greatly and worn and restraint efficiency and quality, practiced thrift cost of labor and time cost, have good economic benefits.

Drawings

Fig. 1 is the utility model discloses an embodiment of the utility model provides an assembly type concrete box girder is with the structure sketch map of threading head.

The reference numbers are as follows:

1, taking up a wire sleeve; 2, a traction head; 3, a wire collecting area; 4, a stable area; 5, external threads; 6, internal threads; 7, a draw bar; 8, a wire collecting plate; 9, fixing the head; 10, locking a nut; 11, a pull ring; 12, pulling the rope.

Detailed Description

The purpose, technical solution and advantages of the present invention are more clearly understood, and the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The threading head for the fabricated concrete box girder shown in fig. 1 comprises a wire collecting sleeve 1 and a traction head 2 which are connected by threads, wherein the wire collecting sleeve 1 is cylindrical, a wire passing hole is formed in the center of the wire collecting sleeve, the wire passing hole is provided with a wire collecting area 3 and a stable area 4, the diameter of the wire collecting area 3 is trumpet-shaped and gradually shrinks towards the stable area 4, the stable area 4 is of a cylindrical hole structure, a step is arranged on the excircle, close to the stable area 4, of the wire collecting sleeve 1, and an external thread 5 is arranged on the step; the drawing head 2 is bullet-shaped, and 2 afterbody of drawing head is provided with the blind hole, is provided with internal thread 6 on the blind hole, and internal thread 6 is connected with the external screw thread 5 of receiving

line cover

1, and 2 front ends of drawing head set up the traction hole and run through to the blind hole, and 12 one ends of haulage rope are fixed in the blind hole, and the other end passes and draws the outside extension of hole.

In this embodiment, the one end that receives line cover 1 and be close to traction head 2 still is provided with receipts line board 8, and the aperture that receives line board 8 diameter and be greater than stable area 4 is less than the screw thread path of traction head 2, is provided with a plurality of line holes of crossing on the receipts line board 8.

In this embodiment, the hauling cable 12 further comprises a hauling rod 7 and a fixing head 9 with a hole in the center, the hauling rod 7 penetrates through the hauling hole, one end of the hauling rod 7, which is positioned inside the hauling head 2, penetrates through the fixing head 9, the end of the hauling rod 7 is connected with a locking nut 10 to prevent the fixing head 9 from falling off, and one end of the hauling rod 7, which is positioned outside the hauling head 2, is provided with a pull ring 11 to be connected with the hauling cable 12.

In this embodiment, the connecting threads of the wire take-up sleeve 1 and the traction head 2 are trapezoidal threads, so that the connecting strength is increased, and the pulling separation is prevented.

In this embodiment, the diameter of the outer circle of the wire take-up sleeve 1 is the same as the maximum diameter of the outer circle of the traction head 2, so that the resistance during traction is reduced as much as possible.

In this embodiment, the outside of the wire take-up sleeve 1 and the traction head 2 are both provided with a hexagonal structure, and are generally arranged at the position of the maximum outer diameter, so that the wire take-up sleeve and the traction head are conveniently fastened by a wrench.

When the wire drawing device is used specifically, a wire harness penetrates through the wire collecting sleeve 1 to be locked and fixed between the wire collecting sleeve 1 and the drawing head 2 (stitch welding or knotting mode can be adopted, when the wire quantity of the wire harness is less, the wire drawing device can be fixed on a wire passing hole of the wire collecting plate 8), then the drawing head 2 and the drawing rod 7 are assembled, the drawing head 2 is screwed on the wire collecting sleeve 1, the drawing rope 12 is fixedly connected onto the pull ring 11, the drawing rope 12 firstly penetrates through the prefabricated hole, and then the wire harness is drawn to penetrate.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The threading head for the fabricated concrete box girder is characterized by comprising a wire collecting sleeve and a traction head which are connected by threads, wherein the wire collecting sleeve is cylindrical, a wire passing hole is formed in the center of the wire collecting sleeve, the wire passing hole is provided with a wire collecting area and a stable area, the diameter of the wire collecting area is trumpet-shaped and gradually shrinks towards the stable area, the stable area is of a cylindrical hole structure, a step is arranged on the excircle, close to the stable area, of the wire collecting sleeve, and an external thread is arranged on the step; the drawing head is bullet-shaped, and the drawing head afterbody is provided with the blind hole, is provided with the internal thread on the blind hole, and the internal thread is connected with the external screw thread of receiving the line cover, and the drawing head front end sets up the traction hole and runs through to the blind hole, and haulage rope one end is fixed in the blind hole, and the other end passes the outside extension in traction hole.

2. The threading head for the fabricated concrete box girder according to claim 1, wherein a thread take-up plate is further arranged at one end of the thread take-up sleeve close to the traction head, the diameter of the thread take-up plate is larger than that of the stable area, the diameter of the thread take-up plate is smaller than the small diameter of the thread of the traction head, and a plurality of thread through holes are formed in the thread take-up plate.

3. The fabricated concrete box girder threading head as claimed in claim 1, wherein the pulling rope further comprises a pulling rod and a fixing head with a hole in the center, the pulling rod passes through the pulling hole, one end of the pulling rod located inside the pulling head passes through the fixing head, and is connected with a locking nut at the end to prevent the fixing head from being pulled out, and one end of the pulling rod located outside the pulling head is provided with a pulling ring to be connected with the pulling rope.

4. The fabricated concrete box girder threading head as claimed in claim 1, wherein the connection threads of the thread take-up sleeve and the traction head are trapezoidal threads.

5. The fabricated concrete box girder threading head as claimed in claim 1, wherein the diameter of the outer circle of the thread take-up sleeve is the same as the maximum diameter of the outer circle of the traction head.

6. The fabricated threading head for the concrete box girder according to claim 1, wherein hexagonal structures are arranged outside the thread take-up sleeve and the traction head.