CN217326100U

CN217326100U - Novel finished prestressed steel strand bundle provided with steel ring lifting rings

Info

Publication number: CN217326100U
Application number: CN202220503645.7U
Authority: CN
Inventors: 李宗行; 赵士国; 于全乐; 韩玉洁
Original assignee: Tianjin Yinfeng Strand Co ltd
Current assignee: Tianjin Yinfeng Strand Co ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-08-30
Anticipated expiration: 2032-03-09

Abstract

The application provides a install novel finished product prestressed steel strand bundle of taking steel ring rings belongs to construction technical field. This install novel finished product prestressing force steel strand wires of taking steel ring rings includes extrusion mechanism and drive mechanism, the stem is located inside the extrusion sleeve, and stem one end and traction head fixed connection, a plurality of first bar grooves have been seted up to stem surface equidistance, a plurality of second bar grooves corresponding with first bar groove have been seted up to the extrusion sleeve inner wall, the counter sink has been seted up to the outer wall that the extrusion sleeve is located each second bar groove, be provided with first fixing bolt on the counter sink, the steel strand wires that correspond are tightly supported to first fixing bolt bottom. Utilize first bar groove and second bar groove to fix every steel strand wires between stem and extrusion sleeve, and can not take place the phenomenon of steel strand wires follow-up at the traction in-process, prevent that the steel strand wires from intertwining warp, the effectual steel strand wires of having guaranteed can not appear loose phenomenon at the traction in-process.

Description

Novel finished prestressed steel strand bundle provided with steel ring lifting rings

Technical Field

The application relates to the field of building construction, in particular to a novel finished prestressed steel strand bundle provided with a steel ring hanging ring.

Background

In the building construction of buildings and roads and bridges, a plurality of prestressed steel strands need to be straightened into bundles (also called finished prestressed steel strand bundles) and penetrate into prepared prestressed ducts, namely corrugated duct ducts. When the finished steel strand bundle is threaded in the corrugated pipeline, an extrusion sleeve needs to be buckled and pressed at the front end of the finished steel strand bundle through a pressure device.

In the prior art, the existing finished prestressed steel strands are threaded, under the conditions of a large number of steel strands and a long distance, extrusion equipment is used for applying pressure to the outer edge of an extrusion sleeve, traction force on a plurality of steel strands is large in the threading and conveying process, the phenomenon that the steel strands are separated from the extrusion sleeve occurs, the steel strands are failed to thread and convey, and construction progress is influenced.

SUMMERY OF THE UTILITY MODEL

In order to compensate above not enough, this application provides an install novel finished product prestressing force steel strand bundle of taking steel ring rings, aims at improving and simply exerts pressure with extrusion equipment to the telescopic outer fringe of extrusion, and the traction force that receives at the in-process many steel strands of wearing to send is big, and the phenomenon of deviating from in the extrusion sleeve appears the steel strand, leads to the steel strand to wear to send the failure, influences the problem of construction progress.

The embodiment of the application provides a install novel finished product prestressing force steel strand bundle of taking steel ring rings, including extrusion mechanism and drive mechanism.

The extrusion mechanism comprises an extrusion sleeve, steel strands, a traction head and a core column, wherein the traction head is in threaded connection with the extrusion sleeve, the core column is located inside the extrusion sleeve, one end of the core column is fixedly connected with the traction head, a plurality of first strip-shaped grooves are formed in the outer surface of the core column at equal intervals, a plurality of second strip-shaped grooves corresponding to the first strip-shaped grooves are formed in the inner wall of the extrusion sleeve, the plurality of steel strands are respectively and correspondingly located between the first strip-shaped grooves and the second strip-shaped grooves, countersunk holes are formed in the outer wall, located on each second strip-shaped groove, of the extrusion sleeve, first fixing bolts are arranged on all the countersunk holes, and the bottom ends of all the first fixing bolts tightly abut against the corresponding steel strands; the traction mechanism comprises a traction ring, and the traction ring and one end of the traction head, which is far away from the extrusion sleeve, are in threaded connection.

In the above-mentioned realization process, need the trailing one end suit of many steel strands in the extrusion sleeve, make simultaneously that every steel strand wires corresponds respectively be located between first bar groove and the second bar groove, utilize first bar groove and second bar groove to fix every steel strand wires between stem and extrusion sleeve, and can not take place the phenomenon of steel strand wires follow-up at the traction in-process, prevent that the steel strand wires intertwine and warp, effectual steel strand wires of having guaranteed can not appear loose phenomenon at the traction in-process. And then drilling a first fixing bolt on the position of the countersunk hole by using an electric drill, and fixing each steel strand in the extrusion sleeve through the corresponding first fixing bolt. And then the traction ring is arranged on the traction head, and the traction work is completed by drawing the traction ring.

In a specific embodiment, the extrusion sleeve is located each the outer wall in second bar groove is seted up at least equidistance the counter sink four, four all set up on the counter sink first fixing bolt.

In the implementation process, at least four counter bores and four first fixing bolts are arranged on the outer wall of each second strip-shaped groove, so that the stability of each steel strand in the extrusion sleeve is improved, and the steel strands are prevented from being separated from the extrusion sleeve.

In a specific embodiment, the bottom ends of all the first fixing bolts are respectively fixed with anti-slip blocks, and the anti-slip blocks tightly abut against the outer surface of the steel strand.

In the implementation process, the anti-slip blocks increase the friction force between the first fixing bolts and the steel strands, and the fixing effect is improved.

In a specific embodiment, a through opening is formed in one side, close to the traction head, of the traction ring, a second fixing bolt is arranged in the through opening, and the traction ring is in threaded connection with the traction head through the second fixing bolt.

In a specific embodiment, a through groove is formed in one end, close to the traction ring, of the traction head, and a first internal thread matched with the first external thread of the second fixing bolt is arranged on the inner wall of the through groove.

In a specific embodiment, the traction mechanism further includes a limiting ring, and the limiting ring is rotatably sleeved on the outer surface of the second fixing bolt.

In a specific embodiment, an annular groove corresponding to the limiting ring is further formed in the traction ring, and the annular groove is communicated with the through hole.

In the above-mentioned realization process, through second fixing bolt, realize that the traction ring is connected with dismantling of traction head, when needs pull, with second fixing bolt bottom and logical inslot butt joint, then through external screw thread and internal screw thread cooperation, with second fixing bolt precession logical inslot, realize the fixed of traction ring and traction head, the spacing ring can assist the tight second fixing bolt of spiral shell, prevents that second fixing bolt from sliding the silk.

In a specific embodiment, a plurality of arc-shaped grooves are arranged on the inner wall of the extrusion sleeve on all the second strip-shaped grooves at equal intervals.

In the implementation process, the arc-shaped grooves are formed in the inner walls of the second strip-shaped grooves, so that the bond stress between the steel strand and the extrusion sleeve in the traction process is improved.

In a specific implementation scheme, the extrusion mechanism further comprises a connecting block, one end of the connecting block is fixed to one end, close to the extrusion sleeve, of the traction head, the other end of the connecting block is fixed to one end, close to the traction head, of the core column, and the traction head is in threaded connection with the extrusion sleeve through the connecting block.

In a specific embodiment, the outer surface of the connecting block is provided with a second external thread, and the inside of the extrusion sleeve is provided with a second internal thread matched with the second external thread.

In the above-mentioned realization process, the connecting block is used for connecting traction head and stem, and the supplementary traction head of connecting block sets up with dismantling of stem simultaneously, penetrates the corrugated pipe with steel strand wires after, can take off traction head soon, repeatedly usable traction head.

Drawings

In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic view of a structure of a novel finished prestressed steel strand bundle provided with a steel ring hoisting ring according to an embodiment of the present application;

FIG. 2 is a schematic view of a connection relationship between a compression sleeve and a drawing head according to an embodiment of the present disclosure;

FIG. 3 is a schematic side view of a connection relationship between an extrusion sleeve, a steel strand and a core column according to an embodiment of the present disclosure;

FIG. 4 is an enlarged view of FIG. 3 at B according to an embodiment of the present disclosure;

fig. 5 is an enlarged structural diagram of a portion a in fig. 1 according to an embodiment of the present disclosure.

In the figure: 10-an extrusion mechanism; 110-a compression sleeve; 111-a second strip groove; 112-counter sink; 113-an arc-shaped slot; 120-steel strand; 130-a traction head; 131-through slots; 140-a stem; 141-first bar-shaped groove; 150-a first fixing bolt; 160-anti-skid blocks; 170-connecting block; 20-a traction mechanism; 210-a traction ring; 220-a second fixing bolt; 230-a stop collar.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Referring to fig. 1, the present application provides a novel finished prestressed steel strand bundle with a steel ring hanging ring, which includes an extrusion mechanism 10 and a traction mechanism 20.

The pressing mechanism 10 is used for fixing the steel strand 120, and the traction mechanism 20 is used for being drawn.

Referring to fig. 1, 2, 3 and 4, the extrusion mechanism 10 includes an extrusion sleeve 110, steel strands 120, a pulling head 130 and a stem 140, the pulling head 130 is screwed with the extrusion sleeve 110, the stem 140 is located inside the extrusion sleeve 110, one end of the stem 140 is fixedly connected to the pulling head 130, a plurality of first bar-shaped grooves 141 are equidistantly formed on an outer surface of the stem 140, a plurality of second bar-shaped grooves 111 corresponding to the first bar-shaped grooves 141 are formed on an inner wall of the extrusion sleeve 110, the plurality of steel strands 120 are respectively and correspondingly located between the first bar-shaped grooves 141 and the second bar-shaped grooves 111, countersunk holes 112 are formed in an outer wall of each second bar-shaped groove 111 of the extrusion sleeve 110, first fixing bolts 150 are arranged on all the countersunk holes 112, and bottom ends of all the first fixing bolts 150 tightly abut against the corresponding steel strands 120. The ends, needing to be pulled, of the steel strands 120 are sleeved in the extrusion sleeve 110, meanwhile, each steel strand 120 is correspondingly located between the first strip-shaped groove 141 and the second strip-shaped groove 111, each steel strand 120 is fixed between the core column 140 and the extrusion sleeve 110 through the first strip-shaped groove 141 and the second strip-shaped groove 111, the steel strand 120 cannot follow up in the pulling process, the steel strands 120 are prevented from being wound and deformed, and the steel strands 120 are effectively prevented from being loosened in the pulling process. Then, a first fixing bolt 150 is drilled at the position of the countersunk hole 112, and each steel strand 120 is fixed in the extrusion sleeve 110 by the corresponding first fixing bolt 150.

When the concrete arrangement is carried out, four countersunk holes 112 are formed in the outer wall, located in each second strip-shaped groove 111, of the extrusion sleeve 110 at least at equal intervals, and the four countersunk holes 112 are all provided with first fixing bolts 150. The arrangement of at least four counter bores 112 and four first fixing bolts 150 on the outer wall of each second strip-shaped groove 111 increases the stability of each steel strand 120 in the extrusion sleeve 110, and prevents the steel strands 120 from falling out of the extrusion sleeve 110.

When the device is specifically arranged, the bottom ends of all the first fixing bolts 150 are respectively fixed with the anti-skidding blocks 160, and the anti-skidding blocks 160 tightly abut against the outer surface of the steel strand 120. The anti-slip block 160 may be made of rubber or silica gel with good anti-slip performance. The anti-slip block 160 increases the friction between the first fixing bolt 150 and the steel strand 120, thereby improving the fixing effect.

In a specific arrangement, a plurality of arc-shaped grooves 113 are arranged on the inner wall of the extrusion sleeve 110 at equal intervals on all the second strip-shaped grooves 111. The arc-shaped groove 113 formed in the inner wall of the second strip-shaped groove 111 improves the bond stress between the extrusion sleeve 110 and the steel strand 120 in the traction process of the steel strand 120.

When specifically setting up, extrusion mechanism 10 still includes connecting block 170, and connecting block 170 one end is fixed with traction head 130 near extrusion sleeve 110 one end, specifically, connecting block 170 one end and traction head 130 welded fastening. The other end of the connecting block 170 is fixed to one end of the stem 140 close to the drawing head 130, and the drawing head 130 is screwed with the extrusion sleeve 110 through the connecting block 170. The outer surface of the connecting block 170 is provided with a second external thread, and the interior of the pressing sleeve 110 is provided with a second internal thread matched with the second external thread. Wherein, connecting block 170 is used for connecting traction head 130 and stem 140, and the supplementary detachable setting of traction head 130 and stem 140 of connecting block 170 simultaneously can take off traction head 130 soon after penetrating the steel strand wires 120 bellows, repeatedly usable traction head 130.

Referring to fig. 1 and 5, the pulling mechanism 20 includes a pulling ring 210, and the pulling ring 210 is screwed with an end of the pulling head 130 far from the pressing sleeve 110. Wherein the pulling ring 210 is mounted on the pulling head 130, and the pulling work is completed by pulling the pulling ring 210.

When specifically setting up, draw ring 210 and be close to and draw head 130 one side and seted up the through-hole, be provided with second fixing bolt 220 in the through-hole, draw ring 210 through second fixing bolt 220 with draw head 130 spiro union setting. One end of the traction head 130 close to the traction ring 210 is provided with a through groove 131, and the inner wall of the through groove 131 is provided with a first internal thread matched with the first external thread of the second fixing bolt 220. The traction mechanism 20 further includes a limiting ring 230, and the limiting ring 230 is rotatably sleeved on the outer surface of the second fixing bolt 220. The traction ring 210 is further provided therein with an annular groove corresponding to the stop ring 230, and the annular groove is communicated with the through hole. Wherein, through second fixing bolt 220, realize that traction ring 210 and traction head 130's dismantlement is connected, when needs pull, with second fixing bolt 220 bottom and logical groove 131 butt joint, then through the cooperation of external screw thread and internal thread, with second fixing bolt 220 precession logical inslot 131, realize traction ring 210 and traction head 130's fixed, the spacing ring 230 can assist the tight second fixing bolt 220 of spiral shell, prevents that second fixing bolt 220 from sliding the silk.

This install the theory of operation of taking steel ring rings's novel finished product prestressed steel strand bundle:

the end, which needs to be pulled, of each of the steel strands 120 is sleeved in the extrusion sleeve 110, and meanwhile, each of the steel strands 120 is correspondingly located between the first bar-shaped groove 141 and the second bar-shaped groove 111, each of the steel strands 120 is fixed between the core column 140 and the extrusion sleeve 110 by using the first bar-shaped groove 141 and the second bar-shaped groove 111, the phenomenon that the steel strands 120 follow up in the pulling process cannot occur, the steel strands 120 are prevented from being wound and deformed, and the phenomenon that the steel strands 120 are loosened in the pulling process is effectively guaranteed. Then, a first fixing bolt 150 is drilled at the position of the countersunk hole 112, and each steel strand 120 is fixed in the extrusion sleeve 110 by the corresponding first fixing bolt 150. The pull ring 210 is then mounted on the pull head 130, and the pulling work is completed by pulling the pull ring 210.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A novel finished prestressed steel strand bundle provided with a steel ring hanging ring is characterized by comprising

The extrusion mechanism (10), the extrusion mechanism (10) comprises an extrusion sleeve (110), a steel strand (120), a traction head (130) and a core column (140), the traction head (130) is in threaded connection with the extrusion sleeve (110), the core column (140) is located inside the extrusion sleeve (110), one end of the core column (140) is fixedly connected with the traction head (130), a plurality of first bar-shaped grooves (141) are formed in the outer surface of the core column (140) at equal intervals, a plurality of second bar-shaped grooves (111) corresponding to the first bar-shaped grooves (141) are formed in the inner wall of the extrusion sleeve (110), the steel strand (120) is correspondingly located between the first bar-shaped grooves (141) and the second bar-shaped grooves (111), the extrusion sleeve (110) is located at each of the outer walls of the second bar-shaped grooves (111) and is provided with a countersunk hole (112), all the counter bores (112) are provided with first fixing bolts (150), and the bottom ends of all the first fixing bolts (150) are tightly abutted to the corresponding steel strands (120);

the traction mechanism (20), the traction mechanism (20) includes a traction ring (210), the traction ring (210) and one end of the traction head (130) far away from the extrusion sleeve (110) are arranged in a threaded manner.

2. The novel finished prestressed steel strand bundle with steel ring hanging rings as claimed in claim 1, wherein the extrusion sleeve (110) is located on the outer wall of each second strip-shaped groove (111) and provided with four counter bores (112) at least at equal intervals, and the first fixing bolts (150) are arranged on the four counter bores (112).

3. The novel finished prestressed steel strand bundle with steel ring hanging ring as claimed in claim 2, wherein the bottom ends of all the first fixing bolts (150) are respectively fixed with anti-slip blocks (160), and the anti-slip blocks (160) tightly abut against the outer surface of the steel strand (120).

4. The novel finished prestressed steel strand bundle provided with the steel ring hanging ring according to claim 1, wherein a through hole is formed in one side of the traction ring (210) close to the traction head (130), a second fixing bolt (220) is arranged in the through hole, and the traction ring (210) is in threaded connection with the traction head (130) through the second fixing bolt (220).

5. The novel finished prestressed steel strand bundle with the steel ring hanging ring as claimed in claim 4, wherein a through groove (131) is formed at one end of the traction head (130) close to the traction ring (210), and a first internal thread matched with the first external thread of the second fixing bolt (220) is formed on the inner wall of the through groove (131).

6. The novel finished prestressed steel strand bundle with steel ring hoisting rings of claim 5, wherein said traction mechanism (20) further comprises a limiting ring (230), said limiting ring (230) is rotatably sleeved on the outer surface of said second fixing bolt (220).

7. The novel finished prestressed steel strand bundle provided with the steel ring hanging ring as claimed in claim 6, wherein an annular groove corresponding to the limiting ring (230) is further formed in the traction ring (210), and the annular groove is communicated with the through hole.

8. The novel finished prestressed steel strand bundle with steel ring hanging rings as claimed in claim 1, characterized in that the inner wall of the extrusion sleeve (110) is provided with a plurality of arc-shaped grooves (113) at equal distances on all the second strip-shaped grooves (111).

9. The novel finished prestressed steel strand bundle provided with the steel ring hanging ring according to claim 1, wherein the extrusion mechanism (10) further comprises a connecting block (170), one end of the connecting block (170) is fixed to one end, close to the extrusion sleeve (110), of the drawing head (130), the other end of the connecting block (170) is fixed to one end, close to the drawing head (130), of the core column (140), and the drawing head (130) is in threaded connection with the extrusion sleeve (110) through the connecting block (170).

10. The novel finished prestressed steel strand bundle with steel ring hanging ring as claimed in claim 9, wherein the outer surface of the connecting block (170) is provided with a second external thread, and the inside of the pressing sleeve (110) is provided with a second internal thread matched with the second external thread.