CN213104214U

CN213104214U - Reinforcing steel bar pre-bending device

Info

Publication number: CN213104214U
Application number: CN202021955584.5U
Authority: CN
Inventors: 翟志勇; 赵庆国; 刘运强; 崔云龙; 曹小伟
Original assignee: China Construction Seventh Engineering Division Corp Ltd
Current assignee: China Construction Seventh Engineering Division Corp Ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-05-04
Anticipated expiration: 2030-09-09

Abstract

The utility model provides a reinforcing bar preflex device relates to building appliances technical field, including base, jack and first U type frame, second U type frame, the jack bottom weld in the base, first U type frame, second U type frame lay in the both sides of jack, and the open end weld in the base, the top of first U type frame, second U type frame has seted up coaxial last holding tank towards one side of base, one side that the top of first U type frame deviates from the jack is provided with L type backstop board, the long limit perpendicular to of L type backstop board first U type frame, the vertical downwardly extending of minor face not only can firmly catch on the reinforcing bar, can realize the location to reinforcing bar preflex length moreover, make the top of jack hold the equal the same with the contact position of each reinforcing bar, guarantee that the length of buckling of each reinforcing bar is unified.

Description

Reinforcing steel bar pre-bending device

Technical Field

The utility model belongs to the technical field of the building apparatus, specifically provide a reinforcing bar preflex device.

Background

At present, according to the regulation of 'steel bar welding and acceptance regulations', when steel bars are welded in an overlap joint mode, the steel bars at the welding end are pre-bent, so that the axes of the two steel bars are on the same straight line.

The patent with application number 201720277278.2 discloses a steel bar pre-bending device, which comprises a hydraulic jack, a base and two reaction steel bars; wherein, the base is arranged on the ground; the hydraulic jack is provided with a hand rocker, the lower end of the hand rocker is fixed on the base, and a main pushing rod of the hydraulic jack is vertically arranged upwards; one ends of the two counter-force reinforcing steel bars are respectively welded on the base and symmetrically distributed on two sides of the hydraulic jack; the other ends of the two counter-force reinforcing steel bars are bent into a hook shape.

According to the technical scheme, the upper parts of the steel bars to be welded are hooked through the two counter-force steel bars, so that the pushing end of the hydraulic jack applies upward acting force to the bending point of the steel bar to be welded, and the steel bar to be welded is bent at the position in contact with the top end of the hydraulic jack under the action of the counter-force steel bars. This technical scheme in the actual implementation in-process, there may exist the counter-force reinforcing bar and take place the condition that deformation can't firmly catch the reinforcing bar of waiting to weld to and wait that the bending point of welding reinforcing bar is difficult for confirming, hydraulic jack can't accurately support and lead to the different problem of length of buckling of reinforcing bar in waiting to bend the bending point.

Accordingly, there is a need in the art for a new rebar pre-bending device that solves the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solve reinforcing bar preflex device of above-mentioned problem.

The technical scheme of the utility model is realized like this: the utility model provides a reinforcing bar prebending device includes base, jack and first U type frame, second U type frame, the jack bottom weld in the base, first U type frame, second U type frame lay in the both sides of jack, and the open end weld in the base, coaxial last holding tank has been seted up towards one side of base in the top of first U type frame, second U type frame, one side that the top of first U type frame deviates from the jack is provided with L type backstop board, the long limit perpendicular to of L type backstop board first U type frame, the vertical downwardly extending of minor face.

The technical effect of the scheme is as follows: the reinforcing steel bar passes through the upper accommodating grooves of the first U-shaped frame and the second U-shaped frame and abuts against the short edge of the L-shaped stop plate, so that the pushing end of the jack acts on the lower part of the reinforcing steel bar and pushes the reinforcing steel bar upwards, and the reinforcing steel bar is bent at the pushed position under the reverse acting force of the first U-shaped frame and the second U-shaped frame; because the first U-shaped frame and the second U-shaped frame are welded with the base, the situation that the reinforcing steel bars cannot be hooked in the background technology can not occur, and the strength and the reliability of the reinforcing steel bar pre-bending device are ensured; the positioning of the pre-bending length of the reinforcing steel bars is realized through the L-shaped stop plates, so that the contact positions of the pushing ends of the jacks and the reinforcing steel bars are the same, the uniform bending length of the reinforcing steel bars is ensured, the welding between the reinforcing steel bars is facilitated, and the construction efficiency is improved.

In the preferable technical scheme of above-mentioned reinforcing bar preflex device, one side that the top of first U type frame deviates from the jack extends and has held the cavity on long limit of L type backstop board, at least two regulation holes have been seted up along its extending direction on long limit of L type backstop board, seted up on the cavity with the spacing hole of regulation hole aperture adaptation.

The technical effect of the scheme is as follows: the distance between the short edge of the L-shaped stop plate and the jack is changed by changing the position of the long edge of the L-shaped stop plate in the cavity, so that the requirements of different pre-bending lengths of the reinforcing steel bars are met, and the applicability of the reinforcing steel bar pre-bending device is improved; through setting up regulation hole and spacing hole, after adjusting the distance of L type backstop board side minor face relative jack, run through spacing hole and regulation hole with the bolt, make the relative position of L type backstop board and cavity fixed.

In the preferred technical scheme of above-mentioned reinforcing bar preflex device, the welding has branch on the base, branch deviates from the one end of base articulates there is the lever, the bar has seted up the bar hole apart from the great one end of branch distance along its extending direction, set up threaded hole on the base, the bolt runs through the bar hole with the relative position of screw hole spiro union with lever and branch is fixed, the bar articulates apart from the less one end of branch distance has the movable block, the holding tank has been seted up down to the movable block up end, down the holding tank with the last holding tank formation of second U type frame holds the chamber that holds of reinforcing bar.

The technical effect of the scheme is as follows: according to the lever principle, one end of the lever, which is far away from the supporting rod, is fixed on the base through a bolt, so that the end, which is connected with the movable block, of the lever is upwards matched with the second U-shaped frame to clamp the steel bar, the steel bar is prevented from sliding when a jack pushes the steel bar, and the steel bar main body is prevented from being bent to influence the verticality of the steel bar; and the spiro union degree of depth through threaded hole on adjusting bolt and the base can change the lower holding tank of movable block and go up the interval between the holding tank, adapts to the clamp of different diameter reinforcing bars on the one hand and establishes, and on the other hand is accomplished at the reinforcing bar and is conveniently taken out the reinforcing bar after buckling.

In the preferable technical scheme of above-mentioned reinforcing bar preflex device, branch is provided with a pair ofly, and about the axis symmetry setting of holding tank down, branch set up in second U type frame orientation one side of jack, it has respectively to articulate on the branch the lever, two levers all with the movable block is articulated.

The technical effect of the scheme is as follows: the two levers are symmetrically arranged, so that the fastening performance and the stability of the reinforcing steel bar are guaranteed when the lower accommodating groove and the upper accommodating groove are clamped; through setting up branch in one side of second U type frame towards the jack, make reinforcing bar preflex device's structure compacter, conveniently carry and use at the construction site.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a front view of the reinforcing bar pre-bending device of the present invention;

fig. 2 is a top view of the reinforcing bar pre-bending device of the present invention;

fig. 3 is a right side view of the steel bar pre-bending device of the present invention.

List of reference numerals: 1. a base; 11. a threaded hole; 2. a jack; 3. a first U-shaped frame; 31. a cavity; 4. a second U-shaped frame; 5. an upper accommodating groove; 6. an L-shaped stopper plate; 61. an adjustment hole; 7. a strut; 8. a lever; 81. a strip-shaped hole; 82. a movable block; 821. and a lower accommodating groove.

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.

It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The utility model discloses a reinforcing bar preflex device's embodiment:

as shown in fig. 1, fig. 2 and fig. 3, a reinforcing bar preflex device includes base 1, jack 2 and first U type frame 3, second

U type frame

4, 2 bottoms of jack weld in base 1, first U type frame 3, the both sides of jack 2 are laid to second U type frame 4, and the open end welds in base 1, first U type frame 3, coaxial last holding tank 5 has been seted up towards one side of base 1 in the top of second U type frame 4, one side that the top of first U type frame 3 deviates from jack 2 is provided with L type backstop 6, the first U type frame 3 of long limit perpendicular to of L type backstop 6, the vertical downwardly extending of minor face.

The reinforcing steel bar passes through the upper accommodating grooves 5 of the first U-shaped frame 3 and the second U-shaped frame 4, the end parts of the reinforcing steel bar are abutted against the short edges of the L-shaped stop plates 6, the pushing end of the driving jack 2 acts on the lower part of the reinforcing steel bar and pushes the reinforcing steel bar upwards, and the reinforcing steel bar is bent at the pushed position under the reverse acting force of the first U-shaped frame 3 and the second U-shaped frame 4.

In this embodiment, one side of the top of the first U-shaped frame 3, which is away from the jack 2, extends to form a cavity 31 for accommodating the long edge of the L-shaped stopper plate 6, the long edge of the L-shaped stopper plate 6 is provided with three adjusting holes 61 along the extending direction thereof, and the cavity 31 is provided with a limiting hole (not shown in the figure) adapted to the aperture of the adjusting hole 61. The distance of the short edge of the L-shaped stop plate 6 relative to the jack 2 is changed by changing the position of the long edge in the cavity 31, so that the requirements of different pre-bending lengths of the reinforcing steel bars are met; the relative position of the L-shaped stop plate 6 and the cavity 31 is fixed by penetrating the limit hole and the adjusting hole 61 through bolts.

With continued reference to fig. 1, 2 and 3, a pair of support rods 7 are welded to the base 1, and two support rods 7 are disposed on one side of the second U-shaped frame 4 facing the jack 2. Branch 7 deviates from that the one end of base 1 articulates there is lever 8, bar hole 81 has been seted up along its extending direction to lever 8 apart from the great one end of branch 7 distance, threaded hole 11 has been seted up on the base 1, the bolt runs through

bar hole

81 and 11 spiro unions of screw hole, it is fixed with lever 8 and branch 7's relative position, lever 8 has movable block 82 apart from the less one end of branch 7 distance articulated jointly, lower holding tank 821 has been seted up to movable block 82 up the up end, lower holding tank 821 and the last holding tank 5 formation of second U type frame 4 hold the chamber that holds of reinforcing bar. The two struts 7 are symmetrically arranged about the axis of the lower receiving groove 821.

According to the principle of the lever 8, one end of the lever 8, which is far away from the supporting rod 7, is fixed on the base 1 through a bolt, so that one end, connected with the movable block 82, of the lever 8 is upwards matched with the second U-shaped frame 4 to clamp the steel bar; and through the spiro union degree of depth of adjusting bolt and screw hole 11 on the base 1, can change the lower holding tank 821 of movable block 82 and the interval between the last holding tank 5 to the reinforcing bar of different diameters is adapted, and is convenient for take out the reinforcing bar after the reinforcing bar is accomplished to buckle.

The utility model discloses a concrete use of reinforcing bar preflex device as follows: adjusting the position of the L-shaped stop plate 6 relative to the cavity 31 according to the preset pre-bending length of the steel bar, and after the adjustment is completed, penetrating a bolt through a limiting hole on the cavity 31 and an adjusting hole 61 on the L-shaped stop plate 6 to fix the L-shaped stop plate 6 at the current position; placing steel bars along the upper accommodating grooves 5 of the first U-shaped frame 3 and the second U-shaped frame 4, and enabling the ends of the steel bars to abut against the side wall of the short side of the L-shaped stop plate 6; placing a bolt in the strip-shaped hole 81 of the lever 8, screwing the bolt into the threaded hole 11 on the base 1, adjusting the movable block 82 to enable the lower accommodating groove 821 of the movable block and the upper accommodating groove 5 on the second U-shaped frame 4 to wrap the steel bar, continuously screwing the bolt into the threaded hole 11 until the screwing is hard, and stopping the bolt, wherein the movable block 82 upwards supports the steel bar tightly; the pushing end of the driving jack 2 pushes the reinforcing steel bar upwards under the reinforcing steel bar, and the reinforcing steel bar is bent under the reverse acting force of the first U-shaped frame 3.

It will be appreciated that although two struts are described in the above embodiments, this is not a limitation on the number of struts provided, for example in other embodiments, a single strut may be provided, with a lever hinged thereto; or three supporting rods are arranged, and a lever and the like are hinged on each supporting rod.

It will also be appreciated that although the support bar is described in the above embodiments as being disposed on the side of the second U-shaped frame facing the jack, this is not a limitation on the location of the support bar, for example, the support bar may also be disposed on the side of the second U-shaped frame facing away from the jack.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a reinforcing bar prebending device, its characterized in that includes base, jack and first U type frame, second U type frame, the jack bottom weld in the base, first U type frame, second U type frame lay in the both sides of jack, and the open end weld in the base, coaxial last holding tank has been seted up towards one side of base to the top of first U type frame, second U type frame, one side that the top of first U type frame deviates from the jack is provided with L type backstop board, the long limit perpendicular to of L type backstop board first U type frame, the vertical downwardly extending of minor face.

2. The steel bar pre-bending device according to claim 1, wherein a cavity for accommodating the long edge of the L-shaped stop plate extends from one side of the top of the first U-shaped frame, which is away from the jack, the long edge of the L-shaped stop plate is provided with at least two adjusting holes along the extending direction of the L-shaped stop plate, and the cavity is provided with a limiting hole matched with the aperture of the adjusting hole.

3. The reinforcing steel bar pre-bending device according to claim 1 or 2, wherein a supporting rod is welded on the base, a lever is hinged to one end of the supporting rod, which is away from the base, a strip-shaped hole is formed in the end, which is far away from the supporting rod, of the supporting rod along the extending direction of the supporting rod, a threaded hole is formed in the base, a bolt penetrates through the strip-shaped hole and is in threaded connection with the threaded hole to fix the relative position of the lever and the supporting rod, a movable block is hinged to the end, which is far away from the supporting rod, of the lever, a lower accommodating groove is formed in the upper end face of the movable block, and the lower accommodating groove and the upper accommodating groove of the second.

4. The pre-bending device for reinforcing steel bars as claimed in claim 3, wherein a pair of supporting rods is arranged and symmetrically arranged about the axis of the lower accommodating groove, the supporting rods are arranged on one side of the second U-shaped frame facing the jack, the supporting rods are respectively hinged with the levers, and both the levers are hinged with the movable block.