CN212201023U

CN212201023U - Corrugated pipe and prestressed anchorage device produced based on same

Info

Publication number: CN212201023U
Application number: CN202020188871.1U
Authority: CN
Inventors: 焦景有; 焦德库; 焦乐乐; 焦玉鹏; 马喜庆
Original assignee: Henan Xinrong Heavy Industry Co ltd
Current assignee: Henan Xinrong Heavy Industry Co ltd
Priority date: 2020-02-20
Filing date: 2020-02-20
Publication date: 2020-12-22
Anticipated expiration: 2030-02-20

Abstract

The utility model relates to a safety in production equipment field, concretely relates to bellows and because prestressed anchorage utensil of this bellows production sets up the change-over pipe through the tip at the bellows for bellows one end can be connected with the change-over pipe through screw thread or other modes, then the change-over pipe gets the other end and is connected with adapting unit, only needs to change the change-over pipe when changing again and can realize the reuse of bellows. The problem of current bellows exist the unable multiple adapting unit needs that satisfy of bellows tip size when the installation, and connect through the welded mode, lead to the difficult recycling of bellows to use many times is solved. Through setting up first bellows and second bellows and connecting on the connecting piece, first steel strand wires and second reinforcing bar line and make it be connected to the connector for prestressed anchorage utensil can the atress even under the environment of extension prestressing tendons, is difficult for structural damage.

Description

Corrugated pipe and prestressed anchorage device produced based on same

Technical Field

The utility model relates to a safety in production equipment field, concretely relates to bellows and based on prestressed anchorage utensil of this bellows production.

Background

The prestressed anchorage means refers to a permanent anchorage device used in prestressed concrete, which is an anchorage tool used in post-tensioning structure or member to keep the tension of prestressed tendons and transmit the tension to the interior of the concrete, and is widely used in the fields of highway bridges, railway bridges, urban overpasses, urban light rails, high-rise buildings, water conservancy and hydropower dams, harbor wharfs, rock slope protection anchorage, foundation reinforcement, tunnel mine roof anchor tops, prestressed net frames, subways, large buildings, warehouse buildings, tower buildings, weight lifting, sliding formwork intermittent propulsion, bridge tunnel propulsion, large containers and ships, sleepers, bridge support replacement, bridge and building reinforcement, engineering reinforcing steel bars, magnetic and corrosion prevention engineering fiber anchors, carbon fiber reinforcement, pretensioned beam field construction, in-vitro prestressed engineering, stay cables, suspension cables and the like.

Chinese patent publication No. CN209925791U discloses a corrugated pipe, which can provide cleanliness of the corrugated pipe through a bottom of a sharp-angled groove, but the size of the end of the corrugated pipe during installation cannot meet the needs of various connecting parts, and the corrugated pipe is connected by welding, so that the corrugated pipe is difficult to be recycled for multiple times.

SUMMERY OF THE UTILITY MODEL

The utility model discloses there is the unable multiple adapting unit needs that satisfy of bellows tip size when the installation to current bellows, and connect through the welded mode, lead to the difficult problem of retrieving manifold cycle use of bellows, provide a bellows and based on the prestressed anchorage utensil of this bellows production.

The corrugated pipe comprises a corrugated pipe body, wherein two ends of the corrugated pipe body are both connected with a joint, the corrugated pipe body is provided with a corrugated peak end and a corrugated valley end, and the periphery of the joint is sleeved with a conversion pipe and is connected with a connecting part through the conversion pipe; the joint includes oblique shoulder and bulge, and the radius of oblique shoulder is the same with ripple peak, and the radius of bulge is less than the radius of oblique shoulder, and the one end that the switching pipe was connected with the articulate is provided with the fixed slot, is provided with the bending segment in the fixed slot, and the fixed slot passes through the bending segment and laminates with oblique shoulder and bulge.

Optionally, a partition structure is arranged in the protruding portion, the partition structure is composed of a plurality of partition sheets, the partition sheets penetrate through the circle center of the cross section of the protruding portion, two ends of each partition sheet are connected with the inner wall of the protruding portion, adjacent partition sheets are intersected, and the intersection point is located at the circle center of the cross section of the protruding portion.

Furthermore, the separating structure is located at the feeding end of the bulge, and the separating structure divides the feeding end of the bulge into a plurality of feeding cavities through the separating sheet.

The application also provides a prestressed anchorage device produced based on the corrugated pipe, which comprises a first corrugated pipe, a connecting piece and a second corrugated pipe, wherein a first steel strand penetrates through the first corrugated pipe, one end of the first corrugated pipe is connected with the connecting piece, a second steel strand penetrates through the second corrugated pipe, and one end of the second corrugated pipe is connected with the connecting piece; the connecting piece includes the connector, cluster ring and protective sheath, the connector is located in the protective sheath, protective sheath one end is passed through cluster ring and is connected with first bellows, the protective sheath other end and second bellows are connected, first steel strand wires and second steel strand wires one end all are fixed in on the connector, first disc portion is provided with the swivelling chute towards cluster ring's one side, the one end that the second perforation is located first disc portion is provided with the mount pad of installation work clamping piece, cluster ring and first bellows junction are provided with the beaded finish, and be connected through the beaded finish and the change-over pipe of first bellows tip.

Optionally, the protective sleeve comprises a first protective sleeve, a second protective sleeve and a connecting sleeve, the connecting sleeve is connected with one end of the first protective sleeve through a first flange, the connecting sleeve is connected with one end of the second protective sleeve through a second flange, the other end of the first protective sleeve is connected with the bundling ring, and the other end of the second protective sleeve is connected with the second corrugated pipe.

Furthermore, first protective sheath and second protective sheath are horn structure, and the stub end and the cluster ring of first protective sheath are connected, and the stub end of first protective sheath is connected with the adapter sleeve, and the stub end of second protective sheath passes through the converting tube and is connected with the second bellows, and the stub end and the adapter sleeve of second protective sheath are connected.

Optionally, the connector includes first disc portion and second disc portion, and the coincidence of second disc portion and the central line of first disc portion, the diameter of second disc portion is less than the diameter of first disc portion, and the periphery of second disc portion is provided with the screw thread, and second disc portion passes through the screw thread and can dismantle with the connecting seat of locating second protective sheath inner wall and be connected.

Optionally, a second through hole vertically penetrating through the first disc portion and the second disc portion and a first through hole penetrating through the first disc portion are formed in the connector, one end of a second steel strand penetrates through the second through hole and is fixed to the connector through a working clamping piece, one end of the first steel strand penetrates through the first through hole in an inclined mode along the extending direction of the first protection sleeve, and the first steel strand is fixed to an inclined plane at the joint of the first disc portion and the second disc portion through extrusion anchoring.

The utility model has the advantages that at least one of the following advantages is included;

1. the end part of the corrugated pipe is provided with the conversion pipe, one end of the corrugated pipe can be connected with the conversion pipe through threads or other modes, then the other end of the conversion pipe is connected with the connecting part, and the corrugated pipe can be reused only by replacing the conversion pipe when being replaced.

2. Simultaneously through setting up the partition structure for the steel strand wires that pass from the bellows can disperse in each feeding chamber, reduce the interference between each steel strand wires, have solved current bellows and have the bellows tip size can't satisfy multiple adapting unit needs when the installation, and connect through the welded mode, lead to the difficult problem of retrieving manifold cycle use of bellows.

3. Through setting up first bellows and second bellows and connecting on the connecting piece, first steel strand wires and second reinforcing bar line and make it be connected to the connector for prestressed anchorage utensil can the atress even under the environment of extension prestressing tendons, is difficult for structural damage.

Drawings

FIG. 1 is a schematic view of a bellows structure;

FIG. 2 is a schematic view of a partition structure;

FIG. 3 is a schematic structural diagram of a prestressed anchorage device for safety production;

FIG. 4 is a schematic view of the connector;

labeled as: the structure comprises a first corrugated pipe 1, a reinforcing ring 2, a bundling ring 3, a first protective sleeve 4, a first flange 5, a connecting sleeve 6, a second flange 7, a spiral rib 8, a second corrugated pipe 9, a second protective sleeve 10, a first steel strand 11, an extrusion anchor 12, a connector 13, a connecting seat 14, a second steel strand 15, a working clamping piece 16, a first disc part 18, a rotating groove 19, a second perforation 20, a first perforation 21, a second disc part 22, a mounting seat 23, a chute 24, a feeding pipe 25, a corrugated valley end 26, a corrugated peak end 27, an inclined shoulder 28, a bulge 29, a conversion pipe 30, a fixing groove 31, a separation structure 32 and a feeding cavity 33.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be 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 scope of the invention.

Referring to fig. 1 and 2, a corrugated pipe includes a corrugated pipe body, wherein joints are connected to both ends of the corrugated pipe body, the corrugated pipe body has a corrugated peak end 27 and a corrugated valley end 26, and a transition pipe 30 is sleeved on the periphery of the joints and connected with a connecting part through the transition pipe 30; the joint comprises an inclined shoulder portion 28 and a protruding portion 29, the radius of the inclined shoulder portion 28 is the same as that of the corrugated peak end 27, the radius of the protruding portion 29 is smaller than that of the inclined shoulder portion 28, a fixing groove 31 is formed in one end, connected with the joint, of the conversion pipe 30, a bending section is arranged in the fixing groove 31, and the fixing groove 31 is attached to the inclined shoulder portion 28 and the protruding portion 29 through the bending section.

In the use, through set up the switching tube at the tip of bellows for bellows one end can be connected with the switching tube through screw thread or other modes, then the switching tube gets the other end and is connected with adapting unit, only need change the switching tube when changing again and can realize the reuse of bellows. One end of the conversion pipe is matched with the corrugated pipe in size, and the other end of the conversion pipe can be matched with the connecting part and is suitable to be large or small, and is connected with the connecting part in a welding mode. The problem of current bellows exist the unable multiple adapting unit needs that satisfy of bellows tip size when the installation, and connect through the welded mode, lead to the difficult recycling of bellows to use many times is solved.

In this embodiment, a partition structure 32 is disposed in the protruding portion 29, the partition structure 32 is composed of a plurality of partition sheets, the partition sheets pass through the center of the cross section of the protruding portion 29, two ends of each partition sheet are connected to the inner wall of the protruding portion 29, adjacent partition sheets intersect with each other, and the intersection point is located at the center of the cross section of the protruding portion 29. The partition structure 32 is located at the feed end of the bulge 29, and the partition structure 32 divides the feed end of the bulge 29 into a plurality of feed cavities 33 by partition pieces.

In use, the steel strands penetrating through the corrugated pipe can be dispersed into each feeding cavity by arranging the separation structure, and interference among the steel strands is reduced.

Referring to fig. 3 and 4, a prestressed anchor includes a first corrugated pipe 1, a connecting member and a second corrugated pipe 9, a first steel strand 11 is inserted into the first corrugated pipe 1, one end of the first corrugated pipe 1 is connected to the connecting member, a second steel strand 15 is inserted into the second corrugated pipe 9, and one end of the second corrugated pipe 9 is connected to the connecting member; the connecting piece includes connector 13, ring 3 and protective sheath are restrainted in the collection, connector 13 is located in the protective sheath, protective sheath one end is passed through ring 3 and is connected with first bellows 1 of restrainting, the protective sheath other end is connected with second bellows 9, first steel strand wires 11 and second steel strand wires 15 one end all are fixed in on connector 13, first disc portion 18 is provided with the swivelling chute 19 towards ring 3's one side of restrainting, the one end that second perforation 20 is located first disc portion 18 is provided with mount pad 23 of installation work clamping piece 16, ring 3 is restrainted with first bellows 1 junction and is provided with beaded finish 2, and be connected with the change-over tube 30 of first bellows 1 tip through beaded finish 2.

In use, the first corrugated pipe and the second corrugated pipe are connected to the connecting piece, and the first steel strand and the second steel bar line are connected to the connector, so that the prestressed anchor can be stressed uniformly in an environment of lengthening the prestressed beam, and is not easy to structurally damage. The problem of current prestressed anchorage utensil, the function is single, only can be applicable to and use under the single steel strand wires environment, can't lengthen the prestressing tendons, can't be peripheral suspension extrusion anchor formula is solved.

In the embodiment, a concrete structure of a protective sleeve and a connector is disclosed, wherein the protective sleeve comprises a first protective sleeve 4, a second protective sleeve 10 and a connecting sleeve 6, the connecting sleeve 6 is connected with one end of the first protective sleeve 4 through a first flange 5, the connecting sleeve 6 is connected with one end of the second protective sleeve 10 through a second flange 7, the other end of the first protective sleeve 4 is connected with a bundling ring 3, and the other end of the second protective sleeve 10 is connected with a second corrugated pipe 9. First protective sheath 4 and second protective sheath 10 are horn structure, and the stub end and the cluster ring 3 of first protective sheath 4 are connected, and the stub end of first protective sheath 4 is connected with adapter sleeve 6, and the stub end and the second bellows 9 of second protective sheath 10 are connected, and the stub end and the adapter sleeve 6 of second protective sheath 10 are connected. The connector 13 includes a first disc portion 18 and a second disc portion 22, the second disc portion 22 coincides with a center line of the first disc portion 18, a diameter of the second disc portion 22 is smaller than a diameter of the first disc portion 18, a periphery of the second disc portion 22 is provided with a screw thread, and the second disc portion 22 is detachably connected with the connecting base 14 arranged on an inner wall of the second protective sleeve 10 through the screw thread. The connector 13 is provided with a second through hole 20 vertically penetrating through the first disc part 18 and the second disc part 22 and a first through hole 21 penetrating through the first disc part 18, one end of the second steel strand 15 passes through the second through hole 20 and is fixed on the connector 13 through the working clamping piece 16, one end of the first steel strand 11 obliquely passes through the first through hole 21 along the extending direction of the first protective sleeve 4 and is fixed on the inclined plane at the joint of the first disc part 18 and the second disc part 22 through the extrusion anchor 12.

In use, first steel strand wires and second steel strand wires pass through first bellows and second bellows respectively first, then be connected first bellows and bunched ring, gather together first steel strand wires through bunched ring, then be connected bunched ring and first protective sheath, the connection mode can select the screw thread to dismantle and connect, then be connected second bellows and second protective sheath, again be fixed in the connector with first steel strand wires and second steel strand wires respectively through extrusion anchor and work clamping piece, simultaneously be connected the second disc portion of connector with the second protective sheath through the screw thread, at last grout after steel strand wires stretch-draw finishes, pass through the grout with connector, first steel strand wires and second steel strand wires are fixed, at last through first flange and second flange with first protective sheath, second protective sheath and adapter sleeve are connected.

The big head end and the tip end of horn structure in this application indicate the one end that horn structure diameter is big and the one end that horn structure diameter is little respectively.

When fixing the second steel strand wires through the work clamping piece, set up the mount pad and be favorable to the fixed of work clamping piece, improve holistic structural strength, the first fenestrate passageway in first disc portion is chute simultaneously, and first steel strand wires are the circular cone type structure at first protective sheath internal portion like this. And then through setting up the inclined plane in first disc portion and second disc portion handing-over department, be favorable to the fixed of extrusion anchor.

In this embodiment, a rotating groove 19 is provided on a surface of the first disk portion 18 facing the cluster ring 3, and a mounting seat 23 for mounting the operation clip 16 is provided on one end of the second through hole 20 located on the first disk portion 18.

The purpose of this design is that, in some special circumstances, the user can make it mount to the connecting socket by turning the swivel groove with a tool adapted to the swivel groove.

In this embodiment, in order to improve the structural strength of the second bellows section, a helical rib 8 may be provided outside the second bellows section.

In this embodiment, in order to facilitate the injection of cement slurry into the whole prestressed anchorage, the connecting sleeve 6 is provided with the feed pipe 25 for feeding in and out the cement slurry, and the feeding pipe is closed after the injection, so that the prestressed anchorage can be sealed, and the mechanical strength of the prestressed anchorage is improved.

Claims

1. A prestressed anchorage device is characterized in that: the corrugated pipe comprises a first corrugated pipe (1) and a second corrugated pipe (9), a first steel strand (11) penetrates through the first corrugated pipe (1), one end of the first corrugated pipe (1) is connected with the connecting piece, a second steel strand (15) penetrates through the second corrugated pipe (9), and one end of the second corrugated pipe (9) is connected with the connecting piece; the connecting piece comprises a connector (13), a bundling ring (3) and a protective sleeve, the connector (13) is arranged in the protective sleeve, one end of the protective sleeve is connected with a first corrugated pipe (1) through the bundling ring (3), the other end of the protective sleeve is connected with a second corrugated pipe (9), the first steel strand (11) and one end of a second steel strand (15) are fixed on the connector (13), the connector (13) comprises a first disc part (18) and a second disc part (22), a second perforation (20) which vertically penetrates through the first disc part (18) and the second disc part (22) and a first perforation (21) which penetrates through the first disc part (18) are arranged on the connector (13), one end of the second steel strand (15) penetrates through the second perforation (20) and is fixed on the connector (13) through a working clamping piece (16), one end of the first steel strand (11) obliquely penetrates through the first perforation (21) along the extending direction of the first protective sleeve (4), and be fixed in on the inclined plane of first disc portion (18) and second disc portion (22) handing-over department through extrusion anchor (12), first disc portion (18) are provided with swivelling chute (19) towards the one side of cluster ring (3), the one end that second perforation (20) are located first disc portion (18) is provided with mount pad (23) of installation work clamping piece (16), cluster ring (3) are provided with beaded finish (2) with first bellows (1) junction to be connected through beaded finish (2) and conversion pipe (30) of first bellows (1) tip.

2. The prestressed anchorage of claim 1, wherein: the protective sheath includes first protective sheath (4), second protective sheath (10) and adapter sleeve (6), adapter sleeve (6) are connected with first protective sheath (4) one end through first flange (5), and adapter sleeve (6) are connected with second protective sheath (10) one end through second flange (7), first protective sheath (4) other end is connected with cluster ring (3), second protective sheath (10) other end is connected with second bellows (9).

3. The prestressed anchorage of claim 2, wherein: first protective sheath (4) and second protective sheath (10) are the horn structure, and the tip of first protective sheath (4) is connected with cluster ring (3), and the tip of first protective sheath (4) is connected with adapter sleeve (6), the tip of second protective sheath (10) is passed through converting tube (30) and is connected with second bellows (9), and the tip of second protective sheath (10) is connected with adapter sleeve (6).

4. A pre-stressed anchor according to claim 3, wherein: the center line coincidence of second disc portion (22) and first disc portion (18), the diameter of second disc portion (22) is less than the diameter of first disc portion (18), and the periphery of second disc portion (22) is provided with the screw, and second disc portion (22) through the screw with locate connecting seat (14) detachable connection of second protective sheath (10) inner wall.

5. The prestressed anchorage of claim 1, wherein: the corrugated pipe comprises a corrugated pipe body, two ends of the corrugated pipe body are both connected with connectors, the corrugated pipe body is provided with a corrugated peak end (27) and a corrugated valley end (26), and the periphery of each connector is sleeved with a conversion pipe (30) and is connected with a connecting part through the conversion pipe (30);

the connector comprises an oblique shoulder portion (28) and a protruding portion (29), the radius of the oblique shoulder portion (28) is the same as that of the corrugated peak end (27), the radius of the protruding portion (29) is smaller than that of the oblique shoulder portion (28), a fixing groove (31) is formed in one end, connected with the connector, of the conversion pipe (30), a bending section is arranged in the fixing groove (31), and the fixing groove (31) is attached to the oblique shoulder portion (28) and the protruding portion (29) through the bending section.

6. The prestressed anchorage of claim 5, wherein: a separation structure (32) is arranged in the protruding portion (29), the separation structure (32) is composed of a plurality of separation sheets, the separation sheets penetrate through the center of the cross section of the protruding portion (29), two ends of each separation sheet are connected with the inner wall of the protruding portion (29), adjacent separation sheets are intersected, and the intersection point is located at the center of the cross section of the protruding portion (29).

7. The prestressed anchorage of claim 6, wherein: the separating structure (32) is positioned at the feeding end of the bulge (29), and the separating structure (32) divides the feeding end of the bulge (29) into a plurality of feeding cavities (33) through separating sheets.