CN112252590A

CN112252590A - Combined prestressed anchorage device

Info

Publication number: CN112252590A
Application number: CN202011027368.9A
Authority: CN
Inventors: 程顺平; 陈杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-01-22

Abstract

The invention relates to the technical field of anchorage devices, in particular to a combined type prestressed anchorage device, which comprises an anchor ring, a clamping piece mechanism, an anchor backing plate, a spiral rib, a corrugated pipe, stop blocks and steel cables, wherein the outer wall of the anchor ring is provided with three holes, the anchor ring is fixedly provided with a plurality of clamping piece mechanisms through the three holes, the inner walls of the plurality of clamping piece mechanisms are fixedly provided with the three steel cables, the three steel cables are respectively positioned in the three holes, one end of the anchor ring is fixedly provided with the anchor backing plate, the end of the anchor backing plate far away from the anchor ring is fixedly provided with the spiral rib, the end of the anchor backing plate far away from the anchor ring is fixedly provided with the corrugated pipe, and the two end of the anchor backing plate are fixedly provided with the two stop blocks. The two second clips act to limit the movement of the bellows when the clip mechanism fails.

Description

Combined prestressed anchorage device

Technical Field

The invention relates to the technical field of anchorage devices, in particular to a combined type prestress anchorage device.

Background

The combined prestressed anchorage device is a device for maintaining the tension of prestressed bar and transferring it to concrete in post-tensioning structure or component, and is formed from five portions of anchor ring, anchor backing plate, clamping piece, spiral bar and corrugated pipe, and is characterized by that the clamping piece in the anchor ring can be used for fixing steel cable, and then the combined prestressed anchorage device can be fixed in the prestressed concrete.

Firstly, the traditional combined prestressed anchorage device only arranges a clamping piece in an anchor ring, the movement of the steel cable is limited by the friction force of the clamping piece on the surface of the steel cable, if the steel cable is subjected to overlarge stress, the steel cable falls off due to the surface abrasion of the clamping piece, and the mode of fixing the steel cable is single; secondly, the anchor backing plate of the traditional combined type prestressed anchorage device is in a block shape, the sectional area is small, the acting force on prestressed concrete is small when the combined type prestressed anchorage device is used, and the combined type prestressed anchorage device can fall off from the concrete when the combined type prestressed anchorage device is stressed too much.

Disclosure of Invention

The present invention aims at providing a combined prestressed anchorage device to solve the problems of easy falling of the steel cable and easy falling of the anchorage device in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a modular prestressed anchorage utensil, includes anchor ring, clamping piece mechanism, anchor top mechanism, spiral muscle, bellows, dog and cable wire, three hole has been seted up to the anchor ring outer wall, the anchor ring has a plurality of clamping piece mechanism, a plurality of through three hole fixed mounting three cable wires of clamping piece mechanism inner wall fixed mounting, three the cable wire is located three hole respectively, anchor top mechanism includes anchor ring one end fixed mounting's anchor backing plate, anchor ring one end fixed mounting is kept away from to the anchor backing plate has the spiral muscle, anchor ring one end fixed mounting is kept away from to the anchor backing plate has the bellows, anchor backing plate both ends fixed mounting has two dogs, two second clamping pieces are installed to the anchor backing plate inner wall, two second clamping piece inner wall fixed mounting has the bellows.

As a preferred technical solution of the present invention, the anchor mechanism 3 further includes a rod groove 32 disposed inside the anchor backing plate 31, one end of the rod groove 32 is communicated with an inner groove 34, a spring 35 is mounted inside the inner groove 34, an ejector rod 33 is sleeved inside the spring 35, the ejector rod 33 is matched with the rod groove 32, and the bottom of the ejector rod 33 is abutted against the second clamping piece 10.

As a preferred technical scheme of the invention, the clamping piece mechanism comprises two connecting pieces, two first clamping pieces and two tooth blocks, wherein the two tooth blocks are fixedly arranged on the inner walls of the two first clamping pieces, and the two connecting pieces are fixedly arranged on the outer walls of the two first clamping pieces.

As a preferable technical scheme of the invention, the two connecting pieces are clamped between the inner wall of the anchor ring and the two first clamping pieces, and the tooth block is connected with the outer surface of the steel cable in a sliding mode.

As a preferable technical scheme of the invention, the three steel cables are detachably provided with the baffle rings at the sections close to the anchor rings, and the three baffle rings are detachably arranged on the three steel cables through a plurality of bolts.

As a preferable technical scheme of the invention, one end of each of the three steel cables close to the spiral rib is fixedly arranged in the corrugated pipe, and the corrugated pipe is positioned in the spiral rib.

Compared with the prior art, the invention has the beneficial effects that:

(1) the steel cable is reinforced from three aspects, firstly, two second clamping pieces are added in the anchor backing plate, and when the clamping piece mechanism breaks down, the two second clamping pieces can play a role in limiting the movement of the corrugated pipe, so that the movement of the steel cable in the corrugated pipe is limited; secondly, the inner wall and the outer wall of the clamping piece mechanism are respectively provided with a high-wear-resistance tooth block made of high manganese steel and a connecting piece made of sticky rubber, so that the possibility of falling of the clamping pieces is reduced; thirdly, a retaining ring is fixedly arranged at a section of the steel cable close to the anchor ring, and the retaining ring is matched with the anchor ring to increase the tensile strength of the steel cable, so that the problem that the steel cable of the traditional combined type prestressed anchorage device is easy to fall off is solved.

(2) The anchor top mechanism through setting up can press on the second clamping piece through the ejector pin to make second clamping piece firm in connection, and can play certain cushioning effect when the second clamping piece receives great power, the second clamping piece of also being convenient for moreover is dismantled from the anchor ring. The two baffle plates are fixedly arranged at the two ends of the anchor backing plate, and the combined type prestressed anchorage device can be fixed in the prestressed concrete to a greater extent by matching the baffle plates with the anchor backing plate, so that the problem that the anchorage device is easy to fall off from the prestressed concrete when the traditional combined type prestressed anchorage device is subjected to a large tensile force is solved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal mounting structure of the anchor ring of the present invention;

FIG. 3 is a schematic view of the internal mounting structure of the anchor pad of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 3;

fig. 5 is a side view of the anchor ring of the present invention.

In the figure: 1. an anchor ring; 2. a clip mechanism; 21. connecting sheets; 22. a first clip piece; 23. a tooth block; 3. an anchor jacking mechanism; 31. an anchor backing plate; 32. a rod groove; 33. a top rod; 34. an inner tank; 35. a spring; 4. a spiral rib; 5. a bellows; 6. a stopper; 7. a steel cord; 8. a baffle ring; 9. a bolt; 10. a second clip; 11. and (4) holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the combined prestressed anchorage device of the present invention comprises an anchor ring 1, a clip mechanism 2, an anchor jacking mechanism 3, a spiral rib 4, a corrugated pipe 5, a stop block 6 and a steel cable 7, wherein the outer wall of the anchor ring 1 is provided with three circular holes 11, the anchor ring 1 is fixedly provided with a plurality of clip mechanisms 2 through the three holes 11, the inner wall of the plurality of clip mechanisms 2 is fixedly provided with three steel cables 7, the three steel cables 7 are respectively located in the three holes 11, anchor top mechanism 3 includes anchor ring 1 one end fixed mounting's anchor backing plate 31, and anchor backing plate 31 keeps away from 1 one end fixed mounting of anchor ring has spiral muscle 4, and anchor backing plate 31 keeps away from 1 one end fixed mounting of anchor ring and has bellows 5, and anchor backing plate 31 both ends fixed mounting has two dog 6 of steel material, and two second clamping pieces 10 are installed to anchor backing plate 31 inner wall, and two second clamping pieces 10 inner wall fixed mounting have bellows 5.

Specifically, the anchor jacking mechanism 3 further comprises a rod groove 32 arranged inside the anchor backing plate 31, one end of the rod groove 32 is communicated with an inner groove 34, a spring 35 is arranged inside the inner groove 34, an ejector rod 33 is sleeved inside the spring 35, the ejector rod 33 is matched with the rod groove 32, and the bottom of the ejector rod 33 is abutted to the second clamping piece 10. The anchoring mechanism 3 can be pressed on the second clamping piece 10 through the ejector rod 33, so that the second clamping piece 10 is firmly connected, and certain buffering effect can be achieved when the second clamping piece 10 is subjected to large force.

Specifically, the clip mechanism 2 includes two connecting pieces 21 made of sticky rubber, two first clips 22 and two tooth blocks 23 made of high-wear-resistance high-manganese steel, two tooth blocks 23 are fixedly mounted on the inner walls of the two first clips 22, and two connecting pieces 21 are fixedly mounted on the outer walls of the two first clips 22.

Specifically, the two connecting pieces 21 are clamped between the inner wall of the anchor ring 1 and the two first clamping pieces 22, the tooth blocks 23 are connected with the outer surface of the steel cable 7 in a sliding manner, and the tooth blocks 23 are clamped with the surface of the steel cable 7 to limit the movement of the steel cable 7.

Specifically, three cable wires 7 are close to one section all can be dismantled and install the fender ring 8 of steel material near anchor ring 1, and three fender ring 8 is through a plurality of bolt 9 demountable installation on three cable wires 7, and the screw has all been seted up to three 8 outer walls of fender ring, and bolt 9 passes through the screw and keeps off ring 8 threaded connection, and bolt 9 one end will keep off ring 8 card on cable wire 7 with the extrusion of cable wire 7.

Specifically, the steel cable 7 is concentrated into one strand through the bundling ring, the steel cable 7 concentrated into one strand is fixedly installed in the corrugated pipe 5, and the corrugated pipe 5 is located inside the spiral rib 4.

When the corrugated pipe corrugated clamping mechanism is used, firstly, two second clamping pieces 10 are additionally arranged in an anchor backing plate 31, when a clamping piece mechanism 2 fails, the two second clamping pieces 10 can act to limit the movement of a corrugated pipe 5, one end of a rod groove 32 of the anchor backing plate 31 is communicated with an inner groove 34, a spring 35 is arranged in the inner groove 34 of the anchor backing plate 31, the spring 35 can be compressed in the inner groove 34, a push rod 33 is sleeved in the spring 35, the push rod 33 of the anchor backing plate 31 is matched with the rod groove 32 of the anchor backing plate 31, and the bottom of the push rod 33 of the anchor backing plate 31 is abutted against the second clamping pieces 10 of the anchor backing plate 31. The anchor jacking mechanism 3 can be pressed on the second clamping piece 10 through the ejector rod 33, so that the second clamping piece 10 is firmly connected, a certain buffering effect can be achieved when the second clamping piece 10 is subjected to a large force, and the second clamping piece 10 can be conveniently detached from the anchor ring 1; thereby restricting the movement of the rope 7 inside the bellows 5; then, the inner wall and the outer wall of the clip mechanism 2 are respectively provided with a tooth block 23 made of high-manganese steel with high wear resistance and a connecting piece 21 made of sticky rubber, so that the possibility of falling off of the first clip 22 is reduced, meanwhile, the thickness of the first clip 22 is reduced in a gradient manner, and when the steel cable is stressed, the pressure of the first clip 22 on the steel cable 7 is increased, so that the static friction force of the contact surface is increased, and the purpose of reinforcing the steel cable 7 is achieved; finally, a retaining ring 8 is fixedly arranged on a section of the steel cable 7 close to the anchor ring 1, the retaining ring 8 is clamped on one side of the anchor ring 1 to fix the steel cable 7 when the steel cable 7 is stressed, and the retaining ring 8 is matched with the anchor ring 1 to be used together to increase the tensile strength of the steel cable 7; during construction, after the fixing part is perforated, the anchorage device is placed in the hole, and then concrete is poured into the hole, the anchorage device is firmly fixed in the concrete by the anchor backing plate 31 and the stop blocks 6 fixedly arranged at two ends of the anchorage backing plate, and the contact area between the anchorage device and the concrete is increased by the additionally arranged stop blocks 6, so that the anchorage device is firmer.

In the description of the present invention, it is to be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings and are only for convenience in describing the present invention and simplifying the description, but are not intended to indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

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. The utility model provides a modular prestressed anchorage utensil, includes anchor ring (1), clip mechanism (2), anchor top mechanism (3), spiral muscle (4), bellows (5), dog (6) and cable wire (7), its characterized in that: the outer wall of the anchor ring (1) is provided with three holes (11), the anchor ring (1) is fixedly provided with a plurality of clamping piece mechanisms (2) through the three holes (11), the inner walls of the plurality of clamping piece mechanisms (2) are fixedly provided with three steel cables (7), the three steel cables (7) are respectively positioned in the three holes (11), the anchor top mechanism (3) comprises an anchor backing plate (31) fixedly arranged at one end of the anchor ring (1), one end of the anchor backing plate (31) far away from the anchor ring (1) is fixedly provided with a spiral rib (4), one end of the anchor backing plate (31) far away from the anchor ring (1) is fixedly provided with a corrugated pipe (5), two check blocks (6) are fixedly mounted at two ends of the anchor backing plate (31), two second clamping pieces (10) are mounted on the inner wall of the anchor backing plate (31), and corrugated pipes (5) are fixedly mounted on the inner wall of the second clamping pieces (10).

2. The modular prestressed anchorage of claim 1, wherein: the anchor top mechanism (3) further comprises a rod groove (32) arranged inside the anchor backing plate (31), one end of the rod groove (32) is communicated with an inner groove (34), a spring (35) is arranged inside the inner groove (34), a top rod (33) is sleeved inside the spring (35), the top rod (33) is matched with the rod groove (32), and the bottom of the top rod (33) is abutted to the second clamping piece (10).

3. The modular prestressed anchorage of claim 1, wherein: the clamping piece mechanism (2) comprises two connecting pieces (21), two first clamping pieces (22) and two tooth blocks (23), wherein the two tooth blocks (23) are fixedly mounted on the inner walls of the first clamping pieces (22), and the two connecting pieces (21) are fixedly mounted on the outer walls of the first clamping pieces (22).

4. The modular prestressed anchorage of claim 3, wherein: the two connecting pieces (21) are clamped between the inner wall of the anchor ring (1) and the two first clamping pieces (22), and the tooth blocks (23) are connected with the outer surface of the steel cable (7) in a sliding mode.

5. The modular prestressed anchorage of claim 1, wherein: one section of each of the three steel cables (7) close to the anchor ring (1) is detachably provided with a retaining ring (8), and the three retaining rings (8) are detachably arranged on the three steel cables (7) through a plurality of bolts (9).

6. The modular prestressed anchorage of claim 1, wherein: and one end of each of the three steel cables (7) close to the spiral rib (4) is fixedly arranged in the corrugated pipe (5), and the corrugated pipe (5) is positioned in the spiral rib (4).