CN214272653U

CN214272653U - Prestressed anchorage utensil based on recoverable type anchor rope uses

Info

Publication number: CN214272653U
Application number: CN202022766033.0U
Authority: CN
Inventors: 薛广浩; 牛东坡
Original assignee: Lanzhou Hengchi Prestress Technology Co ltd
Current assignee: Lanzhou Hengchi Prestress Technology Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-09-24
Anticipated expiration: 2030-11-25

Abstract

The utility model provides a prestressed anchorage utensil based on recoverable type anchor rope uses belongs to the prestressed anchorage and sets firmly the equipment field. This ground tackle includes the anchor backing plate, the anchor ring, the clamping piece is the cylinder chamber structure that the multi-disc toper arc piece constitutes, the anchor backing plate is including integrative installation department that sets up, the fixed part, section of thick bamboo portion, a plurality of first bell mouth have been seted up on the fixed part, the anchor ring is arranged in the installation department, be equipped with a plurality of second taper holes corresponding with first bell mouth on the anchor ring, the symmetry is equipped with a pair of first recess on the first bell mouth, be equipped with the second recess corresponding to first recess on the second taper hole, the clamping piece outside be equipped with first recess and second recess assorted sand grip. The utility model has the advantages that the clamping piece strength is improved by arranging the convex strips on the outer layer of the clamping piece, the problem that the lower end of the clamping piece is easy to break is avoided or reduced, and the transverse dislocation friction damage between the outer side of the clamping piece and the first taper hole on the anchor ring can also be avoided or reduced; the stability of the combination of the anchor backing plate and the anchor ring is improved, and the anchoring performance of the anchorage device is enhanced.

Description

Prestressed anchorage utensil based on recoverable type anchor rope uses

Technical Field

The utility model belongs to the prestressed anchorage sets firmly the equipment field, in particular to prestressed anchorage utensil based on recoverable type anchor rope uses.

Background

The prestressed anchorage is an anchorage suitable for prestressed concrete stretching in engineering construction. Generally, the method is often used in bridge construction, the positioning is carried out in advance, then concrete is poured and buried at two ends of the concrete, namely two ends of a corrugated pipe, and the end faces are arranged for the stabilizing effect of a jack during tensioning. The method is widely applied to project engineering such as highway bridges, railway bridges, urban overpasses, urban light rails, high-rise buildings, hydraulic and hydroelectric dams, ports and wharfs, rock slope protection anchoring, foundation reinforcement, tunnel mine roof anchor tops, prestressed net frames, subways, large buildings and institutions, warehouse workshops, tower buildings, weight lifting, sliding film intermittent propulsion, bridge and tunnel pushing, large containers and ships, sleepers, bridge support replacement, bridge and building reinforcement, steel bar engineering, antimagnetic and anticorrosive engineering, carbon fiber reinforcement, pretensioned beam yard construction, in-vitro prestressed engineering, stay cables, suspension cables and the like. The prestressed anchorage can be divided into four types, namely a clamping piece type, a supporting type, a conical plug type and a gripping and wrapping type. The clamping piece type anchorage is commonly used, when in use, 2 prestressed anchorage clamping pieces are combined to form a hollow cone frustum, and a single or a plurality of steel strands are clamped, fixed and wedged on an anchor plate in the process of applying prestress on a tensioning steel strand. The existing clamping piece structure is unreasonable, so that the anchoring efficiency coefficient of the anchorage device is not high and unstable, particularly, in the tensioning process, the steel strand can be broken or cut off at the edge in the end face of the small end due to stress concentration and exceeding the limit at the small end of the clamping piece, so that the prestress in the concrete member is insufficient or disappears, the bearing capacity of a building is damaged, the service life of the steel strand is shortened, the potential safety hazard is increased, and the building collapses and causes accidents in serious cases.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a prestressed anchorage utensil that anchor performance promoted uses based on recoverable type anchor rope.

In order to realize the above-mentioned purpose, the utility model discloses a technical scheme be a prestressed anchorage utensil based on recoverable type anchor rope uses, including the anchor backing plate, the anchor ring, the clamping piece is the cylinder cavity structure that multi-disc toper arc piece constitutes, the anchor backing plate is including the installation department that an organic whole set up, the fixed part, section of thick bamboo portion, a plurality of first bell mouth has been seted up on the fixed part, the anchor ring is arranged in the installation department, be equipped with a plurality of second conical holes corresponding with first bell mouth on the anchor ring, the symmetry is equipped with a pair of first recess on the first bell mouth, be equipped with the second recess corresponding to first recess on the second conical hole, the clamping piece outside be equipped with first recess and second recess assorted sand grip.

Further, the anchor ring comprises an upper ring seat and a lower ring seat which are integrally arranged, the diameter of the lower ring seat is smaller than that of the upper ring seat, and an external thread is arranged on the outer side of the lower ring seat.

Further, be equipped with first inner ring, second inner ring in the installation department, first inner ring diameter is greater than second inner ring diameter, and first inner ring matches with the seat of fitting with a contraceptive ring, is equipped with the internal thread on the second inner ring, and the external screw thread phase-match that the internal thread was equipped with outside the lower ring seat.

Furthermore, the fixed part is a rectangular plate, and threaded holes are formed in the fixed part close to four corners.

Furthermore, the inner side of the clamping piece is provided with anti-skid threads.

Compared with the prior art, owing to adopted above-mentioned technical scheme, the beneficial technological effect of the utility model is that: the outer layer of the clamping piece is provided with the raised line, so that the strength of the clamping piece is improved, the problem that the lower end of the clamping piece is easy to break is avoided or reduced, and the transverse dislocation friction damage between the outer side of the clamping piece and the first conical hole on the anchor ring can be avoided or reduced; the stability of the combination of the anchor backing plate and the anchor ring is improved, and the anchoring performance of the anchorage device is enhanced.

Drawings

Fig. 1 is a top view of a prestressed anchorage device for use with a retractable anchor cable according to an embodiment of the present invention;

FIG. 2 is a schematic view of the anchor ring of FIG. 1;

FIG. 3 is a schematic view of the anchor pad of FIG. 1;

FIG. 4 is a top view of the clip of FIG. 1;

FIG. 5 is a side view of the clip of FIG. 1;

reference numerals: 10-anchor backing plate, 101-mounting part, 102-fixing part, 103-barrel part, 1011-first inner ring, 1012-second inner ring, 1021-first tapered hole, 1022-first groove, 1023-threaded hole, 20-anchor ring, 201-upper ring seat, 202-lower ring seat, 203-second tapered hole, 204-second groove, 30-clamping piece and 301-convex strip.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail by preferred embodiments.

Example 1

Referring to fig. 1-5, the prestressed anchor device based on a recoverable anchor cable provided in this embodiment includes an anchor backing plate 10, an anchor ring 20, and a clamping piece 30, where the clamping piece 30 is a cylindrical cavity structure formed by a plurality of tapered arc pieces, the anchor backing plate 10 includes an installation portion 101, a fixing portion 102, and a cylinder portion 103, the fixing portion 102 is provided with a plurality of first tapered holes 1021, the anchor ring 20 is disposed in the installation portion 101, the anchor ring 20 is provided with a plurality of second tapered holes 203 corresponding to the first tapered holes 1021, the first tapered holes 1021 are symmetrically provided with a pair of first grooves 1022, the second tapered holes 203 are provided with second grooves 204 corresponding to the first grooves 1022, and the clamping piece 30 is provided with protruding strips 301 matching with the first grooves 1022 and the second grooves 204 on the outer side thereof; the anchor ring 20 comprises an upper ring seat 201 and a lower ring seat 202 which are integrally arranged, the diameter of the lower ring seat 202 is smaller than that of the upper ring seat 201, and external threads are arranged on the outer side of the lower ring seat 202; a first inner ring 1011 and a second inner ring 1012 are arranged in the mounting part 101, the diameter of the first inner ring 1011 is larger than that of the second inner ring 1012, the first inner ring 1011 is matched with the upper ring seat 201, an internal thread is arranged on the second inner ring 1012, and the internal thread is matched with an external thread arranged on the outer side of the lower ring seat 202; the fixing part 102 is a rectangular plate, and threaded holes 1023 are formed in the fixing part 102 close to four corners; the inside of the clip 30 is provided with anti-slip threads.

In this embodiment, the number of the first tapered holes 1021 is 4, the number of the second tapered holes 203 is 4, the depth of the first groove 1022 and the second groove 204 is not less than the thickness of the protruding strip 301, and the first groove 1022 and the second groove 204 may be vertical grooves or inclined grooves.

After the convex strip 301 of the clamping piece 30 is clamped into the first groove 1022, the clamping piece 30 cannot move transversely, so that the transverse abrasion between the outer side of the clamping piece 30 and the first tapered hole 1021 is avoided; the raised lines 301 of the clamping pieces 30 have a reinforcing effect on the textbook body, and the problem that the lower ends of the clamping pieces 30 are prone to cracking is avoided.

The anchor ring 20 is arranged in the anchor backing plate 10, and the lower part of the anchor ring is in threaded connection, so that the stability of the anchor is further enhanced.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention, and the present invention is not to be limited by the foregoing description, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a prestressed anchorage utensil based on recoverable type anchor rope uses, includes anchor backing plate (10), anchor ring (20), clamping piece (30), and clamping piece (30) are the cylinder chamber structure that multi-disc toper arc piece constitutes, its characterized in that: the anchor backing plate (10) comprises an integrally arranged installation part (101), a fixing part (102) and a barrel part (103), a plurality of first tapered holes (1021) are formed in the fixing part (102), an anchor ring (20) is arranged in the installation part (101), a plurality of second tapered holes (203) corresponding to the first tapered holes (1021) are formed in the anchor ring (20), a pair of first grooves (1022) are symmetrically formed in the first tapered holes (1021), second grooves (204) are formed in the second tapered holes (203) corresponding to the first grooves (1022), and convex strips (301) matched with the first grooves (1022) and the second grooves (204) are formed in the outer side of each clamping piece (30).

2. The prestressed anchorage device based on retrievable anchor cable for use according to claim 1, wherein: the anchor ring (20) comprises an upper ring seat (201) and a lower ring seat (202) which are integrally arranged, the diameter of the lower ring seat (202) is smaller than that of the upper ring seat (201), and external threads are arranged on the outer side of the lower ring seat (202).

3. The prestressed anchorage device based on retrievable anchor cable of claim 2, wherein: be equipped with first inner ring (1011), second inner ring (1012) in installation department (101), first inner ring (1011) diameter is greater than second inner ring (1012) diameter, and first inner ring (1011) and last ring seat (201) phase-match are equipped with the internal thread on second inner ring (1012), and the external screw thread phase-match that the internal thread and lower ring seat (202) outside were equipped with.

4. The pre-stressed anchor device for recoverable anchor cable according to claim 3, wherein: the fixing part (102) is a rectangular plate, and threaded holes (1023) are formed in the fixing part (102) close to four corners.

5. The prestressed anchorage device for recoverable anchor line according to claim 4, wherein: the inner side of the clamping piece (30) is provided with anti-skid threads.