CN211547288U

CN211547288U - Gasket type secondary stretch-draw prestressed anchorage utensil

Info

Publication number: CN211547288U
Application number: CN201922020573.1U
Authority: CN
Inventors: 马公达; 张玉石
Original assignee: Siping Ovm Machinery Co ltd
Current assignee: Siping Ovm Machinery Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-09-22
Anticipated expiration: 2029-11-21

Abstract

The utility model discloses a gasket type secondary stretch-draw prestressed anchorage utensil, including anchor backing plate, anchorage, the same steel strand wires of a plurality of structures and a plurality of clamping pieces the same to the structure, the anchorage is installed on the anchor backing plate, set up the anchor eye that a plurality of structures are the same on the anchorage, the utility model relates to a prestressed anchorage utensil technical field, this gasket type secondary stretch-draw prestressed anchorage utensil constitute simply, and convenient operation carries out the accurate calculation through the realization, utilizes the anchorage that the components of a whole that can function independently set up, places the gasket on it for compensating a prestressing loss, through a pair of semicircle backing plate in the gasket secondary compensation structure, utilizes magnetic attraction to make a pair of semicircle gasket group become annular gasket jointly, when carrying out the secondary compensation, plays the effect that makes things convenient for the mounting box to change, has alleviateed the working strength when changing greatly.

Description

Gasket type secondary stretch-draw prestressed anchorage utensil

Technical Field

The utility model relates to a prestressed anchorage utensil technical field specifically is a gasket type secondary stretch-draw prestressed anchorage utensil.

Background

The prestressed anchorage is usually used in bridge construction, is pre-installed and positioned, then is poured with concrete and is buried at two ends of the concrete, namely two ends of the corrugated pipe, and is an end face arranged for the stabilizing effect of the jack during tensioning. The existing secondary tensioning prestressed anchorage device mostly adopts a thread mode to carry out secondary compensation so as to offset the prestress loss after primary tensioning, and the mode adopts a later-stage adjustment mode, and the mode firstly causes inaccurate compensation and secondly causes inconvenience for an operator, so that a gasket type prestressed anchorage device is provided.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a gasket type secondary stretch-draw prestressed anchorage utensil has solved current background technical problem.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a gasket type secondary tensioning prestressed anchorage comprises an anchor backing plate, an anchor seat, a plurality of steel strands with the same structure and a plurality of pairs of clamping pieces with the same structure, wherein the anchor seat is installed on the anchor backing plate, a plurality of anchor holes with the same structure are formed in the anchor seat, the plurality of steel strands penetrate through the plurality of anchor holes, the plurality of pairs of clamping pieces are buckled on the plurality of steel strands in pairs and are embedded in the plurality of anchor holes, and a gasket secondary compensation structure is arranged on the anchor seat;

the secondary compensation structure of the gasket comprises: the base, the sleeve and a pair of semicircular base plates with the same structure;

the anchor block comprises base and sleeve, the base is connected with the anchor backing plate, set up butt joint groove and sleeve tip and butt joint groove matching on the base, set up the same through-hole of a plurality of structures on the base, it is a plurality of the anchor eye set up on the sleeve and with a plurality of the through-hole position corresponds, and is a pair of semicircle backing plate lock is installed outside the sleeve, and is a pair of semicircle backing plate tip is magnetic head and inter attraction.

Preferably, a threaded pipe is arranged on the anchor backing plate and on the other side of the anchor seat, and the steel strands penetrate out of the threaded pipe and are wound mutually.

Preferably, a pair of taking blocks with the same structure are mounted on the outer sides of the pair of semicircular base plates.

Preferably, the anchor holes are all taper holes and the through holes are all round holes.

Preferably, a pair of said semicircular mats have a thickness of between 4 and 13 mm.

Preferably, a plurality of limiting blocks with the same structure are arranged at the butt joint position of the sleeve end and the pair of semicircular backing plates in an annular array mode.

Advantageous effects

The utility model provides a gasket type secondary stretch-draw prestressed anchorage utensil. The method has the following beneficial effects: this gasket type secondary stretch-draw prestressed anchorage utensil is constituteed simply, and convenient operation carries out the accuracy through the realization and calculates, utilizes the anchor socket that the components of a whole that can function independently set up, places the gasket on it for the loss of initial stress of compensation, through a pair of semicircle backing plate in the gasket secondary compensation structure, utilizes magnetic attraction to make a pair of semicircle gasket constitute ring gasket jointly, when carrying out the secondary compensation, plays the effect that makes things convenient for the mounting box to change, has alleviateed the working strength when changing greatly.

Drawings

Fig. 1 is a schematic view of a sectional structure of a gasket type secondary tension prestressed anchorage device.

Fig. 2 is the utility model discloses a overlook the structural diagram of a gasket type secondary stretch-draw prestressed anchorage utensil.

Fig. 3 is a schematic view of a local overlooking structure of a gasket-type secondary tension prestressed anchorage device of the present invention.

In the figure: 1. an anchor backing plate; 2. an anchor block; 3. steel strand wires; 4. a clip; 5. an anchor eye; 2a1, base; 2a2, sleeve; 6. a semicircular base plate; 7. a threaded pipe; 8. taking blocks; 9. and a limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): according to the attached figures 1-3 of the specification, the pad type secondary tensioning prestressed anchor comprises an anchor backing plate 1, an anchor seat 2, a plurality of steel strands 3 with the same structure and a plurality of pairs of clamping pieces 4 with the same structure, wherein the anchor seat 2 is arranged on the anchor backing plate 1, a plurality of anchor holes 5 with the same structure are arranged on the anchor seat 2, the plurality of steel strands 3 pass through the plurality of anchor holes 5, the plurality of pairs of clamping pieces 4 are buckled on the plurality of steel strands 3 in pairs and are embedded in the plurality of anchor holes 5, the anchor seat 2 is provided with a pad secondary compensation structure, in the specific implementation process, the anchor seat 2 is fixed by the anchor backing plate 1, the pairs of clamping pieces 4 are placed in the anchor holes 5 by the anchor holes 5 on the anchor seat 2, the steel strands 3 are fixed by the clamping pieces 4, the secondary compensation structure is arranged, the anchor seat 2 is of a split structure, the secondary compensation structure is arranged at the middle section of the anchor seat 2, according to the pre, placing a gasket prefabricated in advance in the middle of the split structure of the anchor seat 2, and performing secondary compensation;

as can be seen from fig. 1 to 3 of the specification, the secondary compensation structure of the gasket comprises: the base 2a1, the sleeve 2a2 and a pair of semicircular cushion plates 6 with the same structure have the following connection relationship and position relationship;

the anchor seat 2 consists of a base 2a1 and a sleeve 2a2, the base 2a1 is connected with the anchor backing plate 1, a butt-joint groove is formed in the base 2a1, the end part of the sleeve 2a2 is matched with the butt-joint groove, a plurality of through holes with the same structure are formed in the base 2a1, a plurality of anchor holes 5 are formed in the sleeve 2a2 and correspond to the through holes in position, a pair of semicircular backing plates 6 are buckled and installed outside the sleeve 2a2, and the end parts of the semicircular backing plates 6 are magnetic heads and attract each other;

in the practical implementation process, the anchor seat 2 is divided into a base 2a1 and a sleeve 2a2, the front end of the sleeve 2a2 is provided with a butt joint table matched with the butt joint groove on the base 2a1, the diameter of the docking station is smaller than the diameter of the sleeve 2a2, the sleeve 2a2 serves as a fixed end for pulling the steel wire, an anchor hole 5 is arranged on the steel strand, a clamping piece 4 is arranged in the steel strand to fix the steel strand 3, a pair of semicircular backing plates 6 are oppositely arranged, because the magnetic head attracts the pair of semi-circular backing plates 6 together to form a circular ring, the circular ring is sleeved on the outer ring of the butt joint table and inserted into the butt joint groove, the distance between the base 2a1 and the sleeve 2a2 is increased, thereby making the length of the pulled steel strand 3 longer and thereby compensating for the loss of primary prestress, and when an error is found, the end part of the sleeve 2a2 can be withdrawn from the butt joint groove by pulling the sleeve 2a2, and the original semicircular cushion plate 6 is pulled to be replaced by the proper semicircular cushion plate 6;

to sum up, this gasket type secondary stretch-draw prestressed anchorage utensil is constituteed simply, and convenient operation utilizes the stock 2 that the components of a whole that can function independently set up, places the gasket on it for the loss of compensation primary prestressing force, through a pair of semicircle backing plate 6 in the gasket secondary compensation structure, utilizes magnetic attraction to make a pair of semicircle gasket constitute annular gasket jointly, when carrying out the secondary compensation, plays the effect that makes things convenient for the mounting box to change, has alleviateed the working strength when changing greatly.

Preferably, a threaded pipe 7 is arranged on the anchor backing plate 1 and on the other side of the anchor seat 2, and the steel strands 3 penetrate through the threaded pipe 7 and are wound around each other.

Preferably, a pair of taking blocks 8 with the same structure are mounted on the outer sides of the pair of semicircular backing plates 6, so that the semicircular backing plates 6 can be taken down conveniently.

As a preferred scheme, furthermore, the anchor holes 5 are all conical holes and the through holes are all circular holes.

Preferably, the thickness of the pair of semicircular backing plates 6 is 4-13mm, and the semicircular backing plates 6 of a plurality of types meet the construction requirement.

Preferably, a plurality of limit blocks 9 with the same structure are arranged at the butt joint position of the end part of the sleeve 2a2 and the pair of semicircular backing plates 6 in an annular array mode, so that the positions of the pair of semicircular backing plates 6 are limited and the semicircular backing plates are prevented from falling.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

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 gasket type secondary tensioning prestressed anchor comprises an anchor backing plate (1), an anchor seat (2), a plurality of steel strands (3) with the same structure and a plurality of clamping pieces (4) with the same pair structure, and is characterized in that the anchor seat (2) is installed on the anchor backing plate (1), a plurality of anchor holes (5) with the same structure are formed in the anchor seat (2), the plurality of steel strands (3) penetrate through the plurality of anchor holes (5), a plurality of pairs of clamping pieces (4) are buckled on the plurality of steel strands (3) in pairs and are embedded in the plurality of anchor holes (5), and a gasket secondary compensation structure is arranged on the anchor seat (2);

the secondary compensation structure of the gasket comprises: a base (2a1), a sleeve (2a2) and a pair of semicircular backing plates (6) with the same structure;

anchor seat (2) comprise base (2a1) and sleeve (2a2), base (2a1) are connected with anchor backing plate (1), seted up butt joint groove and sleeve (2a2) tip and butt joint groove matching on base (2a1), seted up the same through-hole of a plurality of structures on base (2a1), it is a plurality of anchor eye (5) are seted up on sleeve (2a2) and are with a plurality of the through-hole position corresponds, and is a pair of semicircle backing plate (6) lock is installed outside sleeve (2a2), and is a pair of semicircle backing plate (6) tip is magnetic head and inter attraction.

2. The pad type secondary tension prestressed anchorage of claim 1, wherein a threaded pipe (7) is provided on the anchor backing plate (1) and on the other side of the anchor base (2), and a plurality of steel strands (3) are threaded through the threaded pipe (7) and wound around each other.

3. The prestressed anchorage of claim 1, wherein a pair of identical structure take-up blocks (8) are mounted on the outer sides of the semicircular base plates (6).

4. The pad type secondary tension prestressed anchorage of claim 1, wherein a plurality of said anchor holes (5) are all tapered holes and a plurality of said through holes are all circular holes.

5. A pad type secondary tension prestressed anchorage as claimed in claim 3, wherein the thickness of a pair of said semicircular pads (6) is between 4-13 mm.

6. The prestressed anchorage of claim 1, wherein a plurality of stop blocks (9) with the same structure are mounted at the end of the sleeve (2a2) and at the butt joint position of the pair of semicircular tie plates (6) in an annular array.