CN221276344U

CN221276344U - Correcting device for prestress anchorage clamping piece

Info

Publication number: CN221276344U
Application number: CN202323118845.4U
Authority: CN
Inventors: 宋澍凉; 曲祥琨; 魏建生
Original assignee: Kaifeng Demu Machinery Co ltd
Current assignee: Kaifeng Demu Machinery Co ltd
Priority date: 2023-11-17
Filing date: 2023-11-17
Publication date: 2024-07-05
Anticipated expiration: 2033-11-17

Abstract

The utility model relates to the technical field of buildings, in particular to a correction device of a prestress anchor clamping piece, which comprises an anchor backing plate, wherein an anchor is arranged on the right side of the anchor backing plate, a prestress steel strand penetrates through a through hole of the anchor, a clamping piece is attached to the inner wall of the left end of the anchor through hole, the clamping piece is positioned on the periphery of the prestress steel strand, a corrugated pipe is arranged on the periphery of the prestress steel strand on the right side of the anchor backing plate, a spiral rib is arranged on the periphery of the corrugated pipe, and the anchor backing plate is used for reducing abrasion of the anchor, increasing the fixing force of the anchor and improving the stability of the anchor; the prestress steel strand on the right side of the anchorage device is movably connected with a correction frame, and the correction frame is provided with a clamping assembly and a correction assembly. According to the utility model, through the mutual matching of the clamping component and the correcting component, when the correcting device is used for correcting the gap between the clamping pieces, the correcting frame passes through the prestress steel strand, so that the efficiency and the accuracy of clamping piece correction are improved.

Description

Correcting device for prestress anchorage clamping piece

Technical Field

The utility model relates to the technical field of buildings, in particular to a correction device for a prestress anchorage clamping piece.

Background

Because the prestressed concrete has crack resistance, rigidity and stronger fatigue resistance, is commonly applied to railway bridges and urban viaducts, the generation of the prestress of the prestressed concrete is realized through a prestressed anchorage device, the prestressed anchorage device comprises anchor plates arranged at two ends of the concrete, an anchor ring is arranged on the anchor plates, a through hole is formed in the anchor ring, one end of the through hole is in a horn mouth shape, two clamping pieces are arranged in the through hole of the anchor ring, the two clamping pieces are in a conical tubular structure matched with the hole end of the through hole, threads are arranged in the through hole formed by the two clamping pieces, steel strands are led into the clamping pieces, the steel strands respectively extend out of the anchor rings at the two ends of the concrete, a jack is arranged at the extending end, so that the tensioning operation of the steel strands is implemented, the steel strands are tensioned and applied to the prestress of the steel strands, the aperture of the two clamping pieces is smaller than the diameter of the steel strands, and the two clamping pieces are arranged in the horn mouth of the anchor ring when being matched, the clamping piece can generate extremely high enclasping force to clamp and enclasp the steel strand, uneven phenomenon exists in a gap between the two clamping pieces in the process of construction operation, thus the roundness of a through hole of the two clamping pieces is insufficient, specifically, the phenomenon that the contact area between the clamping piece on one side and the steel strand is larger and the contact area between the clamping piece on the other side and the steel strand is smaller is caused, the enclasping force applied to the steel strand by the clamping piece is uneven, further the phenomenon that enclasping or lack of enclasping force cannot be applied to the steel strand is generated, the correction device of the prestress anchorage clamping piece is disclosed in China (patent publication No. CN 205421032U), the technology can utilize an adjusting mechanism to adjust the gap between the two clamping pieces in the process that the two adjusting ejector rods move along the length of the steel strand, so that the end parts of the two adjusting ejector rods are inserted in the gap between the two clamping pieces, the adjusting ejector rods are evenly and synchronously adjusted, thereby ensure the precision of interval between two clamping pieces to ensure the centre gripping firmness to the steel strand wires, adjustment efficiency is high moreover, but this orthotic devices whole journey needs manual completion, and work efficiency and precision are lower. Accordingly, one skilled in the art would be able to provide an orthotic device for a prestressed anchorage clip that addresses the problems set forth in the background above.

Disclosure of utility model

In view of the above, the utility model provides a correction device for a prestress anchorage clamping piece, which solves the problems that the whole course of the existing correction device needs to be completed manually and the working efficiency and the accuracy are low.

In order to solve the technical problems, the utility model provides a correction device of a prestress anchor clamping piece, which comprises an anchor backing plate, wherein an anchor is arranged on the right side of the anchor backing plate, a prestress steel strand penetrates through a through hole of the anchor, a clamping piece is attached to the inner wall of the left end of the anchor through hole, the clamping piece is positioned on the periphery of the prestress steel strand, a corrugated pipe is arranged on the periphery of the prestress steel strand on the right side of the anchor backing plate, a spiral rib is arranged on the periphery of the corrugated pipe, and the anchor backing plate is used for reducing abrasion of the anchor, increasing the fixing force of the anchor and improving the stability of the anchor;

the prestress steel strand on the right side of the anchorage device is movably connected with a correction frame, and the correction frame is provided with a clamping assembly and a correction assembly.

Preferably: the correction frame is close to the position of left end and is equipped with the left socle, the left socle middle part is equipped with the through-hole, the mounting groove has been seted up to the position symmetry about the through-hole, and left socle and mounting groove are used for fixed correction subassembly.

Preferably: the clamping assembly is symmetrically provided with two groups, and comprises a first electric cylinder and a second electric cylinder.

Preferably: the steel strand clamping block is fixedly connected to the inner side of the output end of the electric cylinder I, the inner side of the steel strand clamping block is tightly attached to the outer wall of the prestress steel strand, the clamping piece clamping block is fixedly connected to the inner side of the output end of the electric cylinder II, the clamping piece clamping block is tightly attached to the outer wall of the clamping piece, and the steel strand clamping block is used for fixing the correcting device on the prestress steel strand.

Preferably: the correction assembly comprises an elastic telescopic rod and an electric cylinder III, wherein an inserting sheet is fixedly connected to the left end of the elastic telescopic rod, the inserting sheet is attached to a spacing groove between the inserting sheet and the clamping sheet, and the inserting sheet plays a role in keeping the distance between the spacing grooves between the clamping sheets consistent, so that correction of the clamping sheet is facilitated.

Preferably: the third electric cylinder is fixed in the mounting groove, a pressing block is fixedly connected to the output end of the third electric cylinder, the pressing block is located on the outer side of the clamping piece in a clinging mode, and the pressing block is used for extruding the clamping piece into a mounting hole of an anchor.

The utility model has the technical effects and advantages that:

According to the utility model, when the gap between the clamping pieces is corrected by the correction device through the mutual matching of the clamping components and the correction components, the correction frame passes through the prestress steel strand, firstly, the inserting pieces are inserted into the interval grooves, so that the gap distances between the clamping pieces are equal, then, the second electric cylinder is started, the clamping pieces are clamped by the clamping piece clamping blocks, then, the first electric cylinder is started, the prestress steel strand is clamped by the steel strand clamping blocks, at this time, the correction device is fixed on the prestress steel strand, finally, the third electric cylinder is started, the clamping pieces are extruded into the mounting holes of the anchor by the pressing blocks, at this time, correction of the clamping pieces is completed, and the correction efficiency and accuracy of the clamping pieces are improved.

Drawings

FIG. 1 is a schematic view of the overall structure of an orthotic device with a prestressed anchorage clip according to an embodiment of the present application;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A, provided by an embodiment of the present application;

FIG. 3 is a schematic perspective view of an orthotic device of a prestressed anchorage clip according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a clamping assembly and a brace in a brace of a prestressed anchorage clip according to an embodiment of the present application;

FIG. 5 is a schematic illustration of a corrective component of a corrective device of a prestressed anchorage clip according to an embodiment of the present application;

Fig. 6 is a schematic structural diagram of a clip in an orthotic device with a prestressed anchorage clip according to an embodiment of the present application.

In the figure:

1. an anchor backing plate; 2. an anchor; 3. prestress steel strand; 4. a clamping piece; 5. a bellows; 6. spiral ribs;

7. A correction rack; 71. a left bracket; 72. a mounting groove;

8. A clamping assembly; 81. an electric cylinder I; 811. a steel strand clamping block; 82. an electric cylinder II; 821. a clamping piece clamping block;

9. A corrective component; 91. an elastic telescopic rod; 911. inserting sheets; 92. an electric cylinder III; 921. and (5) briquetting.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the detailed description. The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Examples

Referring to fig. 1 to 6, in this embodiment, a correction device for a prestressed anchorage clamping piece is provided, including an anchor backing plate 1, an anchorage 2 is disposed on the right side of the anchor backing plate 1, a prestressed steel strand 3 penetrates through a through hole of the anchorage 2, a clamping piece 4 is attached to an inner wall of a left end of the through hole of the anchorage 2, the clamping piece 4 is located at the periphery of the prestressed steel strand 3, a corrugated pipe 5 is disposed at the periphery of the prestressed steel strand 3 on the right side of the anchor backing plate 1, a spiral rib 6 is disposed at the periphery of the corrugated pipe 5, and the anchor backing plate 1 is used for reducing abrasion of the anchorage 2 and increasing fixing force of the anchorage 2, so that stability of the prestressed anchorage is improved; the correction frame 7 is provided with a clamping component 8 and a correction component 9.

Specifically, a left bracket 71 is arranged at a position of the correction bracket 7 close to the left end, a through hole is arranged in the middle of the left bracket 71, mounting grooves 72 are symmetrically formed in the upper and lower positions of the through hole, and the left bracket 71 and the mounting grooves 72 are used for fixing the correction assembly 9; two groups of clamping assemblies 8 are symmetrically arranged, and each clamping assembly 8 comprises a first electric cylinder 81 and a second electric cylinder 82; the steel strand clamping block 811 is fixedly connected to the inner side of the output end of the first electric cylinder 81, the inner side of the steel strand clamping block 811 is tightly attached to the outer wall of the prestressed steel strand 3, the clamping piece clamping block 821 is fixedly connected to the inner side of the output end of the second electric cylinder 82, the clamping piece clamping block 821 is tightly attached to the outer wall of the clamping piece 4, and the steel strand clamping block 811 is used for fixing the correcting device on the prestressed steel strand 3.

The correcting component 9 comprises an elastic telescopic rod 91 and an electric cylinder III 92, wherein an inserting sheet 911 is fixedly connected to the left end of the elastic telescopic rod 91, the inserting sheet 911 is attached to a spacing groove 41 between the clamping pieces 4, and the inserting sheet 911 plays a role in keeping the distance between the spacing grooves 41 between the clamping pieces 4 consistent, so that correction of the clamping pieces 4 is facilitated; the third electric cylinder 92 is fixed in the mounting groove 72, a pressing block 921 is fixedly connected to the output end of the third electric cylinder 92, the pressing block 921 is located on the outer side of the clamping piece 4, and the pressing block 921 is used for extruding the clamping piece 4 into a mounting hole of the anchor 2.

Working principle:

When correcting the gap between the clamping pieces 4 by using a correcting device, enabling the correcting rack 7 to penetrate through the prestress steel strand 3, firstly inserting the inserting piece 911 into the interval groove 41 to enable the gap distance between the clamping pieces 4 to be equal, starting the electric cylinder II 82 to enable the clamping piece clamping block 821 to clamp the clamping pieces 4, then starting the electric cylinder I81 to enable the steel strand clamping block 811 to clamp the prestress steel strand 3, at the moment, fixing the correcting device on the prestress steel strand 3, and finally starting the electric cylinder III 92 and pressing the clamping pieces 4 into the mounting holes of the anchor 2 by the pressing block 921, at the moment, finishing correction of the clamping pieces 4; in the correcting process, under the effect of limiting the inserting piece 911 and extruding the pressing block 921, the clamping piece 4 is extruded into the mounting hole of the anchor 2 under the condition that the distance between the middle gaps is kept equal, and in the extruding process, as the width of the spacing groove 41 is continuously reduced, two sides of the inserting piece 911 are extruded and slowly move outwards, and when the inserting piece 911 is completely separated from the spacing groove 41, the correcting and mounting of the clamping piece 4 are completed.

It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present utility model without the inventive step, are intended to be within the scope of the present utility model. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.

Claims

1. The utility model provides a orthotic devices of prestressing force ground tackle clamping piece, includes anchor backing plate (1), anchor backing plate (1) right side is equipped with ground tackle (2), run through in the through-hole of ground tackle (2) have prestressing force steel strand wires (3), the laminating has clamping piece (4) on the left end inner wall of ground tackle (2) through-hole, clamping piece (4) are located prestressing force steel strand wires (3) are peripheral, and prestressing force steel strand wires (3) on anchor backing plate (1) right side are peripheral to be equipped with bellows (5), bellows (5) are peripheral to be equipped with spiral muscle (6), its characterized in that:

the prestress steel strand (3) on the right side of the anchorage device (2) is movably connected with a correction frame (7), and the correction frame (7) is provided with a clamping component (8) and a correction component (9).

2. The correction device of the prestress anchor clamping piece according to claim 1, wherein a left bracket (71) is arranged at a position, close to the left end, of the correction frame (7), a through hole is arranged in the middle of the left bracket (71), and mounting grooves (72) are symmetrically formed in the upper position and the lower position of the through hole.

3. The correction device for a prestressed anchorage clip according to claim 1, wherein two groups of clamping assemblies (8) are symmetrically arranged, and the clamping assemblies (8) comprise a first electric cylinder (81) and a second electric cylinder (82).

4. A correction device for a prestressed anchorage clamping piece according to claim 3, wherein a steel strand clamping block (811) is fixedly connected to the inner side of the output end of the first electric cylinder (81), the inner side of the steel strand clamping block (811) is tightly attached to the outer wall of the prestressed steel strand (3), a clamping piece clamping block (821) is fixedly connected to the inner side of the output end of the second electric cylinder (82), and the clamping piece clamping block (821) is tightly attached to the outer wall of the clamping piece (4).

5. The correction device of the prestress anchor clamping piece according to claim 1, wherein the correction component (9) comprises an elastic telescopic rod (91) and an electric cylinder III (92), an inserting piece (911) is fixedly connected to the left end of the elastic telescopic rod (91), and a spacing groove (41) between the inserting piece (911) and the clamping piece (4) is attached.

6. The correction device for the pre-stress anchor clamping piece according to claim 5, wherein the third electric cylinder (92) is fixed to the mounting groove (72), a pressing block (921) is fixedly connected to the output end of the third electric cylinder (92), and the pressing block (921) is located on the outer side of the clamping piece (4).