CN214091051U - Guide rod for reducing dislocation of clamping pieces - Google Patents

Abstract

The utility model discloses a guide arm for reducing clamping piece dislocation for pressing the clamping piece into the anchor hole on the anchor plate, the guide arm includes barrel and tooth mouth, and the barrel is the tubbiness structure, and the front end symmetry at the barrel is provided with the movable groove, and the tooth mouth sets up in the movable groove through the activity of tensioning assembly, the tooth mouth uses with the crack cooperation on the clamping piece, and the impact surface of barrel front end uses with the rear end face cooperation of clamping piece, and the stress surface of barrel rear end uses with the lower terminal surface cooperation of hitting the pole; when the clamping piece is used, the tooth mouth is clamped into the gap on the clamping piece, the clamping piece can be effectively prevented from being tightly clamped by the guide rod, the clamping piece is tightly clamped by the impact surface in contact with the rear end surface of the clamping piece, the dislocation of the clamping piece can be well controlled, the dislocation of the clamping piece is well controlled within 1mm, and the clamping piece clamping device has the characteristics of simplicity and convenience in use and capability of effectively ensuring the tightening quality of the clamping piece.

Description

Guide rod for reducing dislocation of clamping pieces

Technical Field

The utility model belongs to the technical field of construction equipment, concretely relates to a guide arm for reducing clamping piece dislocation.

Background

In the structure of common reinforced concrete, because the ultimate tensile strain of concrete is low, the strain of the steel bar in the member greatly exceeds the ultimate tensile strain of the concrete under the action of use load, and the strength of the steel bar in the reinforced concrete member can not be fully utilized, the common reinforced concrete structure is unreasonable to adopt high-strength steel bars; in order to fully utilize high-strength materials and make up the difference between the tensile strain of concrete and reinforcing steel bars, people apply prestress to a reinforced concrete structure, namely, firstly apply tension to the reinforcing steel bars, then pour the concrete, loosen the reinforcing steel bars when the strength meets the requirement, enable the reinforcing steel bars to retract, counteract the tension of normal use load (pretensioning method) and then tension method, namely pour the reserved holes of the concrete, apply the reinforcing steel bars with tension after molding, and then anchor the reinforcing steel bars at two ends of a member by using an instrument;

in the traditional large-span prestress construction process, tension is preferably applied to one end of a steel strand, then grouting is performed in a grouting manner, and in the grouting process, the steel strand is fixed on an anchoring plate at one end by a clamping piece; in the specific construction process, the clamping piece is composed of a plurality of clamping leaves, so that in the process of fixing the stranded wires on the anchoring plate by utilizing the clamping piece, the clamping leaves at the rear part are often staggered to influence the construction quality, and meanwhile, in the process of pressing the clamping piece into the anchoring hole, the clamping piece is pressed by the outer side part, so that the clamping piece bayonet position deviates to generate a splayed notch to influence the fixing quality of the clamping piece.

Disclosure of Invention

The defect that exists to the above-mentioned prior art, the utility model aims to provide a guide arm for reducing clamping piece dislocation, including barrel and tooth mouth, when using, go into the crack on the clamping piece with tooth mouth card, can effectively avoid the guide arm to tighten the crack that the clamping piece in-process produced "eight" word mouth, tighten the clamping piece through the rear end face contact of impact surface with the clamping piece simultaneously, can be fine carry out the control action to the dislocation of clamping piece, the fine control of clamping piece dislocation is within 1mm, has simple to use convenience, can effectively guarantee the characteristics of the tight quality of tightening of clamping piece.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a guide arm for reducing clamping piece dislocation for in the anchor eye of impressing the clamping piece on the anchor slab, the guide arm includes barrel and tooth mouth, and the barrel is the tubbiness structure, and the front end symmetry at the barrel is provided with movable groove, and the tooth mouth sets up in movable groove through taut subassembly activity, the tooth mouth uses with the crack cooperation on the clamping piece, and the impact surface of barrel front end uses with the rear end face cooperation of clamping piece, and the stress surface of barrel rear end uses with the lower terminal surface cooperation of beating the pole.

Preferably, the tensioning assembly comprises a tensioning bolt, a threaded sleeve and a spring which are symmetrically arranged, the spring is sleeved on the tensioning bolt, the tensioning bolt penetrates through the tooth mouth to be connected with the threaded sleeve, the diameter of a nut of the tensioning bolt is larger than the width of the movable groove, and the tensioning bolt can be tightly pressed on the outer side face of the movable groove.

Preferably, the rear end of the cylinder is welded with a drawing frame.

Preferably, the inner diameter of the barrel is larger than the diameter of the stranded wire and not larger than the outer diameter of the rear end face of the clamping piece.

Preferably, the cross-sectional flatness of the impact surface is less than 1 mm.

The utility model has the advantages that: the utility model discloses a guide arm for reducing clamping piece dislocation, compared with the prior art, the utility model discloses an improvement part lies in:

(1) the utility model discloses a guide rod for reducing the dislocation of clamping pieces, which comprises a cylinder body and a tooth mouth, wherein the tooth mouth is matched with a working clamping piece, when in use, the tooth mouth is clamped into a crack on the clamping piece, so that the clamping piece is ensured to be evenly stressed in all directions in the tightening process, the crack with a splayed shape generated in the clamping piece tightening process of the guide rod can be effectively avoided, and the fixing quality of the clamping piece is ensured;

(2) meanwhile, in the process of fastening and fixing the clamping piece, the impact surface is contacted with the rear end surface of the clamping piece and tightly pressed, so that the clamping piece is fastened, the dislocation of the clamping pages of the clamping piece can be well controlled, and the dislocation of the clamping piece is well controlled within 1 mm;

(3) the guide rod controls the dislocation amount of the clamping pieces from the source, the operation method is correct and compliant, the dislocation amount of the clamping pieces can meet the standard requirement, the tooth openings are extended out of the front of the guide rod, the clamping pieces are symmetrically arranged, splayed openings after tensioning are avoided in the clamping pieces, and the product quality is ensured; the clamping piece clamping device has the advantages that the common defects of the construction quality of the traditional prestress clamping piece can be effectively solved, the problems of staggered platforms and splayed openings of the clamping pieces are solved, the site construction is convenient, the use is simple and convenient, the tightening quality of the clamping pieces is effectively guaranteed, and the site practical problems are solved.

Drawings

Fig. 1 is a schematic structural diagram of an anchor cable structure.

Fig. 2 is a diagram of the effect of the traditional clip after being tightened.

Fig. 3 is a schematic structural view of the clamping piece tightening process of the present invention.

Fig. 4 is an effect diagram of the clamping piece of the utility model after being tightened.

Fig. 5 is a schematic structural view of the guide rod of the present invention in the forward direction.

Fig. 6 is a schematic view of the structure of the guide rod of the present invention in the reverse direction.

Fig. 7 is a side view of the guide bar of the present invention.

Fig. 8 is a schematic structural view of the tension assembly of the present invention.

Wherein: 1. the cable comprises a stranded wire, 2 parts of an anchor plate, 3 parts of a clamping piece, 4 parts of a guide rod, 41 parts of a cylinder body, 411 parts of a movable groove, 42 parts of a tooth mouth, 43 parts of a drawing frame, 44 parts of a stress surface, 45 parts of an impact surface, 46 parts of a tension bolt, 47 parts of a threaded sleeve and 48 parts of a spring.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following describes the technical solution of the present invention with reference to the accompanying drawings and embodiments.

Referring to fig. 1-8, the guide rod for reducing the dislocation of the clamping piece is used for pressing the clamping piece 3 into the anchor hole of the anchor plate 2, the guide rod 4 comprises a barrel 41 and symmetrically arranged tooth mouths 42, the barrel 41 is of a barrel-shaped structure, the left side and the right side of the front end of the barrel 41 are symmetrically provided with movable grooves 411, the tooth mouths 42 are movably arranged in the movable grooves 411 through tensioning components, so that the tooth mouths 42 can move up and down along the movable grooves 411 to adjust the length of the impact surface 45 extending out of the lower end, and the tooth mouths 42 are matched with the cracks on the clamping piece 3 for use, namely, when in use, the tooth mouths 42 are clamped in the cracks on the clamping piece 3, so that the splayed cracks in the clamping piece tightening process are prevented from occurring, the clamping piece fastening quality is ensured, the impact surface 45 at the front end of the barrel 41 is matched with the rear end surface of the clamping piece 3 for use, namely, the impact surface 45 and the rear end surface of the clamping piece 3 are mutually pressed, the rear end face of the clamping piece 3 is applied with downward penetrating force, the clamping piece 3 is driven into an anchor hole on the anchor plate 2, the stress surface 44 at the rear end of the cylinder 41 is matched with the lower end face of the striking rod for use, and the clamping piece 3 is driven into the anchor hole on the anchor plate 2 by applying impact force through the striking rod.

Preferably, the tightening assembly comprises a tightening bolt 46, a threaded sleeve 47 and a spring 48 which are symmetrically arranged, the spring 48 is sleeved on the tightening bolt 46 to limit the threaded sleeve 47, the tightening bolt 46 passes through the jaw 42 to be connected with the threaded sleeve 47, the nut diameter of the tightening bolt 46 is larger than the width of the movable slot 411, and a nut can be tightly pressed on the outer side surface of the movable slot 411 when in use, so that when the tightening bolt 46 is rotated in the forward direction, two symmetrically arranged tightening bolts 46 are mutually tightened, and the nut arranged on the tightening bolt 46 is tightly pressed on the outer side of the movable slot 411 to fix the position of the jaw 42; and when the position of the tooth mouth 42 needs to be adjusted, the length of the lower end impact surface 45 extending out of the tooth mouth 42 can be matched with the length of a crack of the clamping piece 3 to be pressed, the tensioning bolt 46 can be rotated reversely to adjust the position of the tooth mouth 42, and after the adjustment is finished, the tensioning bolt 46 is rotated forward again to fix the tooth mouth 42.

Preferably, in order to easily pull out the guide rod 4 after the clamping piece 3 is tightened, the drawing frame 43 is welded to the rear end of the cylinder 41, and when the drawing frame is used, the guide rod 4 can be pulled out by hanging the clamping opening or the hook on the drawing frame 43.

Preferably, in order to ensure that the cylinder 41 can penetrate through the stranded wire 1, the inner diameter of the cylinder 41 is slightly larger than the diameter of the stranded wire 1; and is not larger than the outer diameter of the back end surface of the clamping piece 3, the impact surface 45 can be effectively ensured to be contacted with the back end surface of the clamping piece 3, impact force is applied, and the clamping piece 3 is driven into the anchor hole.

Preferably, for guaranteeing the fixed effect to clamping piece 3, the section flatness of impact surface 45 be less than 1mm, can be effectual clamping piece good control within 1mm of staggering.

Preferably, the barrel 41 and the mouthpiece 42 are made of steel.

The utility model discloses a use technique application principle: before the clamping piece 3 is used, firstly, the length of the tooth mouth 42 extending out of the lower end impact surface 45 is adjusted according to the specification of the clamping piece 3, the tooth mouth 42 is matched with the crack length of the clamping piece 3, then the stranded wire 1 penetrates through the anchor hole on the anchor plate 2, the clamping piece 3 is aligned to the anchor hole, the tooth mouth 42 is clamped into the crack length of the clamping piece 3, the impact surface 45 is aligned with the clamping piece 3, the lower end surface of the striking rod is aligned to the stress surface 44 to start applying external force to the clamping piece 3, the clamping piece 3 is penetrated, after the clamping piece 3 is struck tightly, the guide rod 4 is pulled out through the drawing frame 43, and the striking work of the next clamping piece 3 is carried out.

The utility model has the advantages that: (1) the inner diameter of the cylinder body 41 is slightly larger than the diameter of the steel strand 1, in order to prevent the clamping piece from being staggered in the clamping piece tightening process of the traditional tamping rod and influence the construction quality, the small-diameter tamping rod is specially processed, so that the clamping piece 3 is fixed in the relative position in the tightening process, the staggered table of the clamping piece 3 is well controlled, and the staggered table of the clamping piece is well controlled within 1 mm;

(2) two tooth mouths 42 symmetrically extend out of the front end of the cylinder body 41, and the clamping pieces are symmetrically distributed mainly aiming at the situation that the positions of bayonets of the clamping pieces are deviated due to the application of external force in the tightening process of the clamping pieces 3 to generate splayed gaps.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (5)

1. A guide rod for reducing clip dislocation, characterized in that: used for pressing the clamping piece (3) into an anchor hole on the anchor plate (2), the guide rod (4) comprises a cylinder body (41) and a tooth mouth (42),

the cylinder body (41) is of a barrel-shaped structure, the front end of the cylinder body (41) is symmetrically provided with a movable groove (411),

tooth mouth (42) set up in activity groove (411) through the activity of taut subassembly, the crack cooperation on tooth mouth (42) and clamping piece (3) is used, and the striking face (45) of barrel (41) front end uses with the rear end face cooperation of clamping piece (3), and stress surface (44) of barrel (41) rear end uses with the lower terminal surface cooperation of beating the pole.

2. The guide bar for reducing clip staggering according to claim 1, wherein: the tensioning assembly comprises a tensioning bolt (46), a threaded sleeve (47) and a spring (48) which are symmetrically arranged, the spring (48) is sleeved on the tensioning bolt (46), the tensioning bolt (46) penetrates through a tooth mouth (42) to be connected with the threaded sleeve (47), the diameter of a nut of the tensioning bolt (46) is larger than the width of the movable groove (411), and the tensioning bolt can be tightly pressed on the outer side face of the movable groove (411).

3. The guide bar for reducing clip staggering according to claim 1, wherein: the rear end of the cylinder body (41) is also welded with a drawing frame (43).

4. The guide bar for reducing clip staggering according to claim 1, wherein: the inner diameter of the barrel (41) is larger than the diameter of the stranded wire (1) and not larger than the outer diameter of the rear end face of the clamping piece (3).

5. The guide bar for reducing clip staggering according to claim 1, wherein: the section flatness of the impact surface (45) is less than 1 mm.

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