CN210976639U

CN210976639U - Exposed steel bar straightening device

Info

Publication number: CN210976639U
Application number: CN201921084994.4U
Authority: CN
Inventors: 侯小龙
Original assignee: Mcc Communication Construction Group Co ltd
Current assignee: Mcc Communication Construction Group Co ltd
Priority date: 2019-07-11
Filing date: 2019-07-11
Publication date: 2020-07-10
Anticipated expiration: 2029-07-11

Abstract

The utility model belongs to the technical field of the reinforced concrete construction, a expose bar straightener is disclosed, including pinch bar and perpendicular fixed dop and the activity dop of connecting at the pinch bar end, constitute F shape, fixed dop with the activity dop forms the draw-in groove, the activity dop can be followed the width that the pinch bar removed the regulation draw-in groove. The utility model discloses an expose reinforcing bar aligning device is the hand tool that is used for the exerted reinforcing bar of concrete to carry out the alignment, utilizes lever principle to the pinch bar is the arm of force, sets up the draw-in groove of centre gripping reinforcing bar at the pinch bar end, and the draw-in groove mainly comprises stating fixed dop and activity dop, and the activity dop can move the draw-in groove size of adjusting in order to change the centre gripping reinforcing bar, the reinforcing bar of applicable different diameter specifications. The device has low manufacturing cost, is convenient to carry and can be used for multiple times. By adopting the device, the labor of workers can be saved, the labor intensity of the workers can be reduced, and the straightening effect on exposed steel bars is good.

Description

Exposed steel bar straightening device

Technical Field

The utility model belongs to the technical field of the reinforced concrete construction, especially, relate to an expose reinforcing bar aligning device.

Background

When pouring the cast-in-place pile, the elevation of the top of the cast-in-place pile should be 0.5-1.0 m higher than the elevation of the designed top of the pile so as to ensure the strength of the pile head concrete, but the pile head part higher than the designed elevation of the top of the pile must be chiseled off in the subsequent process construction, and the chiseling off of the pile head concrete is the pile head breaking. The pile foundation breaks the pile head and exposes a part of reinforcing bar among them, and the reinforcing bar that often exposes becomes crooked because of chiseling operation, needs to carry out the reinforcing bar alignment.

In addition, concrete is poured in many projects in stages, a section of exposed reinforcing steel bar needs to be reserved for the reinforcing steel bar embedded in the pouring of the previous stage, and the concrete is poured in the later stage for use, so that the concrete poured in different stages can be well combined into a whole. However, the exposed reinforcing steel bars left in the previous stage of pouring often cause bending deformation of the exposed reinforcing steel bars due to various reasons, and straightening treatment of the embedded reinforcing steel bars is needed before the later stage of pouring.

At present, straightening of broken pile heads and embedded steel bars of pile foundations often does not have special tools, workers often find an article considered to be usable at construction sites at will, for example, thick steel bars or steel pipes are used as crowbars, local materials are used for straightening the steel bars, the method cannot protect operators, the operators are easy to clamp hands, straightening efficiency is low, and angles are difficult to find in most operation processes. In addition, the mechanical external force of a crane or a digging machine is adopted for straightening, but the force cannot be controlled, the strength of the steel bar is influenced, the steel bar is easy to damage, and the engineering quality is unfavorable.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an expose bar straightener, including pinch bar and perpendicular connection at the fixed dop and the activity dop of pinch bar end, constitute F shape, fixed dop with the activity dop forms the draw-in groove, the activity dop can be followed the width that the pinch bar removed the regulation draw-in groove.

Preferably, the exposed steel bar straightening device further comprises a sleeve, the sleeve is welded and fixed to the end of the pry bar and is perpendicular to the pry bar.

Preferably, the fixed chuck is made of a steel pipe. Furthermore, the movable chuck is made of a steel pipe with the inner diameter different from that of the fixed chuck.

Preferably, the outer surface of the joint of the crowbar and the movable chuck is provided with spiral teeth, the movable chuck is provided with a movable screw, the movable screw is matched with the spiral teeth, and the movable chuck can be driven to move along the crowbar by rotating the movable screw.

Preferably, the movable chuck comprises a through hole with the same cross section shape as the pry bar, a fastening bolt is arranged on the side wall of the through hole, the movable chuck is sleeved with the pry bar through the through hole to slide, and the movable chuck can be prevented from sliding along the pry bar by screwing the fastening bolt.

Preferably, a rubber sleeve handle is arranged on the prying bar.

Preferably, the prying bar, the fixed chuck and the movable chuck are all made of metal materials with yield strength not lower than 400 Mpa.

Preferably, the fixed chuck and the movable chuck are both made of HPB400 hot-rolled round steel bars.

Preferably, the cross section of the pry bar is circular or square, and the fixed chuck is welded with the pry bar.

The utility model discloses an expose reinforcing bar aligning device is the hand tool that is used for the exerted reinforcing bar of concrete to carry out the alignment, utilizes lever principle to the pinch bar is the arm of force, sets up the draw-in groove of centre gripping reinforcing bar at the pinch bar end, and the draw-in groove mainly comprises stating fixed dop and activity dop, and the activity dop can move the draw-in groove size of adjusting in order to change the centre gripping reinforcing bar, the reinforcing bar of applicable different diameter specifications. The device has low manufacturing cost, is convenient to carry and can be used for multiple times. By adopting the device, the labor of workers can be saved, the labor intensity of the workers can be reduced, and the straightening effect on exposed steel bars is good.

Drawings

FIG. 1 is a schematic view of an embodiment of an exposed reinforcement bar straightening apparatus;

FIG. 2 is an enlarged view of section A of the embodiment of FIG. 1;

FIG. 3 is a schematic right view of the embodiment of FIG. 1;

fig. 4 is a schematic view of an embodiment of an exposed reinforcement bar straightening device.

In the figure: 1-prying bar, 2-fixed chuck, 3-movable chuck, 4-helical tooth, 5-movable screw, 6-rubber sleeve handle 7-exposed steel bar, 8-sleeve and 9-fastening bolt.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to solve the technical problems, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments, and it should be noted that the drawings are schematic and not drawn to scale or dimension, and therefore the drawings and the specific embodiments are not intended to limit the scope of the present invention.

Optional embodiment of expose bar straightener shown in fig. 1, including crowbar 1 and connect fixed dop 2 and the activity dop 3 at 1 end of crowbar perpendicularly, constitute F shape, fixed dop 2 with activity dop 3 forms the draw-in groove, crowbar 1 has helical tooth 4 with 3 junction surfaces of activity dop, activity dop 3 sets up movable screw 5, movable screw 5 cooperates with helical tooth 4, and rotatory movable screw 5 can take activity dop 3 to remove the width in order to adjust the draw-in groove along crowbar 1, sets up rubber sleeve handle 6 on the crowbar 1. When the device is used, the movable screw 5 is rotated to enable the movable chuck 3 to move in the direction away from the fixed chuck 2 along the pry bar 1, the size of the clamping groove is increased, the bent part of the exposed steel bar 7 is transversely placed into the clamping groove, the movable screw 5 is rotated in the reverse direction, the movable chuck 3 moves in the direction towards the fixed chuck 2 along the pry bar 1 to clamp the exposed steel bar 7, a worker holds the rubber sleeve handle 6 on the pry bar 1, three points, namely the contact point of the exposed steel bar 7 and the fixed chuck 2, the contact point of the movable chuck 3 and the fixed chuck 2 and the rubber sleeve handle 6 on the pry bar 1, form a lever, force is applied in the reverse direction for bending the exposed steel bar 7, the bent part of the exposed steel bar 7 can be straightened, the exposed steel bar 7 is loosened by rotating the movable screw 5, the exposed steel bar straightening device is removed, and. In the exposed steel bar straightening device in the embodiment of fig. 1, the fixing chuck 2 is made of a steel pipe, the inner diameter of the steel pipe can be selected to be larger than 15mm, and the exposed steel bar 7 with the outer diameter of less than 14mm can penetrate through the fixing chuck 2, namely, the fixing chuck 2 made of the steel pipe alone is used for the exposed steel bar with the smaller outer diameter to penetrate through the fixing chuck for straightening.

Fig. 2 is an enlargement of a portion of the embodiment of fig. 1, and this figure reflects a structural mode that the movable chuck 3 is arranged and can move along the pry bar 1, namely, the outer surface of the joint of the pry bar 1 and the movable chuck 3 is provided with a spiral tooth 4, the movable chuck 3 is provided with a movable screw 5, the movable screw 5 is matched with the spiral tooth 4, when the movable screw 5 is rotated, the movable chuck 3 can move along the pry bar 1, so that the size of a clamping groove formed by the fixed chuck 2 and the movable chuck 3 is changed, and the clamping of the clamping groove on exposed steel bars 7 with different diameters is realized.

Fig. 3 is a right side view of the embodiment of fig. 1, the fixed chuck 2 is made of a steel pipe, the movable screw 5 is rotated, the movable screw 5 is matched with the spiral teeth 4 to adjust the clamping groove, the fixed chuck 2 and the movable chuck 3 clamp the bent part of the exposed steel bar 7, a worker holds the rubber sleeve handle 6 on the pry bar 1, then applies force in the direction of an arrow in the figure, three points, namely, a contact point of the exposed steel bar 7 and the fixed chuck 2, a contact point of the movable chuck 3 and the fixed chuck 2, and a holding part of the rubber sleeve handle 6 on the pry bar 1, form a lever, and the exposed steel bar 7 can be straightened with small force.

An optional embodiment of the exposed steel bar straightening device shown in fig. 4 comprises a pry bar 1, a fixed chuck 2, a movable chuck 3 and a sleeve 8 which are vertically connected to the end of the pry bar 1, wherein the fixed chuck 2, the movable chuck 3 and the pry bar 1 are in an F shape, the fixed chuck 2 and the movable chuck 3 form a clamping groove, a plurality of positioning holes are formed in the joint of the pry bar 1 and the movable chuck 3, the movable chuck 3 is correspondingly provided with positioning holes, the movable chuck 3 can move along the pry bar 1 to align the positioning holes with appropriate positioning holes so as to adjust the width of the clamping groove, the clamping groove clamps the bent part of the exposed steel bar 7, then a fastening bolt 9 penetrates through the aligned positioning holes to fasten the positioning holes, and a rubber sleeve handle 6 is arranged on the pry bar 1; in the exposed reinforcing bar straightening device of the embodiment of the figure, the sleeve 8 is welded on the side, opposite to the fixed chuck 2, of the same end of the pry bar 1, the inner diameter of the sleeve 8 can be selected to be larger than 15mm in the section part in the figure, the sleeve can penetrate into the exposed reinforcing bar with the outer diameter being smaller than 14mm, and the exposed reinforcing bar with the smaller outer diameter can be used for penetrating into the sleeve to be straightened. When the steel bar straightening machine is used, for an exposed steel bar 7 with a larger diameter, a bent part of the exposed steel bar is clamped by a clamping groove formed by the fixed clamping head 2 and the movable clamping head 3, a rubber sleeve handle 6 on the prying bar 1 is held by a hand, three points, namely a contact point of the exposed steel bar 7 and the fixed clamping head 2, a contact point of the movable clamping head 3 and the fixed clamping head 2 and the rubber sleeve handle 6 on the prying bar 1 held by the hand, form a lever, and the bent part of the exposed steel bar 7 is straightened by applying force to the opposite direction of bending of the exposed steel bar 7. For exposed steel bars with smaller outer diameter, the straightening operation is carried out by adopting the penetration sleeve 8.

The utility model discloses an expose reinforcing bar aligning device is the hand tool that is used for the exerted reinforcing bar of concrete to carry out the alignment, utilize lever principle, use the pinch bar as the arm of force, set up the draw-in groove or the sleeve pipe of centre gripping reinforcing bar at the pinch bar end, the sleeve pipe is used for the less bar alignment of diameter, the great bar alignment of draw-in groove mainly used diameter, the draw-in groove mainly comprises fixed dop and activity dop, the activity dop can remove the draw-in groove size of adjusting in order to change the centre gripping reinforcing bar, the removal regulation mode of activity dop can have multiple form, two different regulation forms have been explained above, be suitable for the reinforcing bar of different diameter specifications. The device is made of metal materials with yield strength not lower than 400Mpa, for example, HPB400 steel bars or hot-rolled plain round steel bars are selected, so that the device is low in manufacturing cost, convenient to carry and capable of being used repeatedly. By adopting the device, the labor of workers can be saved, the labor intensity of the workers can be reduced, and the straightening effect on exposed steel bars is good.

Of course, the present invention can have other various embodiments, and those skilled in the art can make various corresponding changes and modifications according to the present invention without departing from the spirit and the essence of the present invention, and these corresponding changes and modifications are within the scope of the claims of the present invention.

Claims

1. The utility model provides an expose reinforcing bar aligning device which characterized in that, includes the pinch bar and connects perpendicularly at the fixed dop and the activity dop of pinch bar end, constitutes F shape, fixed dop with activity dop forms the draw-in groove, the width that the activity dop can follow the pinch bar removal regulation draw-in groove.

2. An exposed reinforcement bar straightening device according to claim 1, further comprising a sleeve, wherein the sleeve is vertically welded and fixed to the end of the pry bar.

3. An exposed reinforcing bar straightening device according to claim 1, wherein the fixing clip is made of a steel pipe.

4. An exposed reinforcing bar straightening device according to claim 3, wherein the movable clamps are made of steel pipes having a different inner diameter than the fixed clamps.

5. An exposed steel bar straightening device according to claim 1, wherein the outer surface of the joint of the crowbar and the movable clamp is provided with spiral teeth, the movable clamp is provided with a movable screw rod, the movable screw rod is matched with the spiral teeth, and the movable screw rod can be rotated to drive the movable clamp to move along the crowbar.

6. An exposed reinforcing bar straightening device as claimed in claim 1, wherein the movable clamp includes a through hole having the same cross-sectional shape as the pry bar, a fastening bolt is provided on a side wall of the through hole, the movable clamp is slidably fitted around the pry bar through the through hole, and the movable clamp is prevented from sliding along the pry bar by tightening the fastening bolt.

7. An exposed reinforcement bar straightening device according to claim 1, wherein a rubber sleeve handle is provided on the pry bar.

8. An exposed steel bar straightening device according to claim 1, wherein the pry bar, the fixed chuck and the movable chuck are all made of metal material having a yield strength of not less than 400 Mpa.

9. An exposed reinforcing bar straightening device as claimed in claim 1, wherein the fixed and movable clamps are made of HPB400 hot rolled round reinforcing bars.

10. An exposed steel bar straightening device according to any one of claims 1 to 9, wherein the cross section of the pry bar is circular or square, and the fixed clamp is welded to the pry bar.