Portable steel bar bending device

Abstract

The invention discloses a portable steel bar bending device. The portable steel bar bending device comprises a supporting rod; the clamping ring is fixedly connected to the side wall of the supporting rod and used for being fixedly connected with the tail end of the end where a jaw of the pipe pressing pliers is located. The supporting columns are fixedly connected to the portions, on the two sides of the clamping ring, of the supporting rod body and used for supporting two point positions of the reinforcing steel bar; and a jaw of the pipe pressing pliers is used for clamping the reinforcing steel bar. The application range of the portable steel bar bending device is not limited to a steel bar field, operation can be conducted anytime and anywhere on a steel bar binding and welding working face, the device is simple and convenient, time and labor are saved, and operation can be completed through manual operation.

Description

Technical Field

[0001] The present invention relates to a portable steel bar bending device, in particular to a steel bar bending technology, which is suitable for the steel bar binding and welding process of large-volume structures such as highway engineering caps, cap beams, cast-in-place box beams, etc., in which the steel bars need to be bent to a certain angle in advance and then welded, bringing convenience to the binding and welding of steel bars, especially thick steel bars with a diameter of 25-32. Background Art

[0002] In the process of steel bar binding and welding of large-volume structures such as highway engineering foundations, cap beams, cast-in-place box beams, etc., it is often necessary to pre-bend the steel bars at a certain angle and then weld them. However, in actual construction, especially in the process of high-altitude operations involving large-volume cast-in-place box beams, it is troublesome to pre-bend the steel bars, which is not conducive to the secondary transportation of the steel bars, and at the same time increases safety hazards, bringing many problems to workers in the process of binding and welding steel bars. Summary of the invention

[0003] The purpose of the present invention is to provide a portable steel bar bending device to solve the problem in the above background that the steel bars need to be bent to a certain angle in advance for binding and welding. It solves the problem that batch operations do not need to be carried out in steel bar processing plants, avoids the safety hazards of separate secondary transportation and transportation, and can be bent directly at the application position of steel bar binding and welding according to actual conditions. The device is easy to carry, can be used at any time, has strong flexibility and practicality.

[0004] A portable steel bar bending device, comprising:

[0005] Support rods;

[0006] A clamping ring, fixedly connected to the side wall of the support rod, and used for being fixedly connected to the end of the pipe crimping pliers where the jaws are located;

[0007] A pair of support columns, fixedly connected to the support rod body on both sides of the clamp ring, are used to support two points of the steel bar;

[0008] A pipe crimping clamp, the jaws of which are used for clamping steel bars.

[0009] Optionally, it also includes a pair of steel bar fixing clamps, which are fixedly connected to the support rod bodies of the pair of support columns in opposite directions and are used to clamp the two ends of the steel bars.

[0010] Optionally, a through hole is provided at the end of the end where the jaws of the pipe crimping pliers are located, and a pin is passed through the through hole to fix the pipe crimping pliers to the clamping ring.

[0011] Optionally, a pair of support columns are equidistant from the clamping ring.

[0012] Optionally, a slide groove is provided on the support rod along its length direction, and the lower end of the support column is slidably embedded in the slide groove.

[0013] Optionally, each steel bar fixing clamp includes two clamping rods, which extend away from each other at an inclined angle, and a region for clamping the steel bar is formed between the two clamping rods.

[0014] Beneficial effects:

[0015] (1) Provide a portable device for steel bar bending, the scope of use is not limited to the steel bar site, and can be operated anytime and anywhere on the steel bar binding and welding operation surface. The device is simple and convenient, saving time and effort, and can be completed manually;

[0016] (2) A steel bar bending support rod is assembled by welding a support rod, a hook, two support points and two steel bar fixing clips, which is simple, practical and can be carried around;

[0017] (3) A convenient device for bending steel bars is formed by cleverly combining a handheld pipe crimping pliers and a steel bar bending support rod;

[0018] (4) The device of the present invention can adjust the bending angle of the steel bar arbitrarily within a certain range according to actual needs, and is manually controlled, which is flexible and simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the portable steel bar bending device according to an embodiment of the present invention;

[0020] Figure 2 A top view of the portable steel bar bending device according to an embodiment of the present invention;

[0021] Figure 3 A side view of a portable steel bar bending device according to an embodiment of the present invention;

[0022] Figure 4 It is a schematic diagram of the portable steel bar bending device according to an embodiment of the present invention being connected with a mechanical pipe crimping clamp to perform steel bar bending;

[0023] Figure 5 This is a schematic diagram of the portable steel bar bending device described in an embodiment of the present invention being connected to a mechanical pipe crimping clamp to bend steel bars. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the two are connected to each other and the relative position relationship after the connection remains unchanged. "Rotational connection" means that the two are connected to each other and can rotate relative to each other after the connection. The directional terms mentioned in the embodiments of the present application, such as "upper", "lower", "inner", "outer", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0026] The present embodiment provides a portable steel bar bending device, including a support rod 1, which serves as the basis of the entire bending device; a clamp 4, which is fixedly connected to the side wall of the support rod 1 and is used to be fixedly connected to the end where the jaws of the pipe crimping pliers are located; a pair of support columns 2, which are fixedly connected to the support rod body on both sides of the clamp 4, and are used to support two points of the steel bar; a pair of steel bar fixing clamps 3, which are fixedly connected to the support rod body in opposite directions of the pair of support columns 2, and are used to clamp the steel bar.

[0027] The clamp ring 4 can be in arc, circle, square or other shapes, as long as it can be fixed on the support rod. The clamp ring 4 can be welded on the support rod 1.

[0028] The pipe crimping pliers 5 can be hand-held mechanical pipe crimping pliers, or electric pipe crimping pliers or hydraulic pipe crimping pliers. The pipe crimping pliers 5 are usually used to squeeze the pipe joints of two pipes to connect the two pipes together. The jaws of the pipe crimping pliers 5 can be opened, and the jaws are in the form of two arc-shaped clamp bodies buckled together. When in use, the jaws are opened, and the pipe joints of the two pipes are placed into the jaws. Then, by operating the operating lever, one arc-shaped clamp body is squeezed on the pipe joint part and buckled with the static arc-shaped clamp body to crimp the pipe interface. The present application cleverly applies it to the bending of steel bars. When in use, the jaws are opened, and the steel bars are placed into the jaws. The static arc-shaped clamp body is against the lower side of the steel bars. Then, the other arc-shaped clamp body is manually operated to squeeze on the upper side of the steel bars, thereby bending the steel bars.

[0029] A through hole can be processed at one end of the pipe crimping pliers 5 where the jaws are located. The pipe crimping pliers can be fixedly connected to the clamp 4 by passing a pin 51 through the through hole, and a steel bar 6 can be placed in the jaws of the pipe crimping pliers, so that the support rod of the jaws can be supported on the steel bar by manual operation to bend the steel bar 6.

[0030] A pair of support columns 2 are fixedly connected to the support rod body on both sides of the clamp ring 4, and are used to support two points of the steel bar. Preferably, the distance between the pair of support columns 2 and the clamp ring 4 is equal, so that when bending, the support columns 2 can support the steel bar at equal distances on both sides of the bending point. When the steel bar is inserted into the jaws, the two points of the steel bar located on both sides of the clamp ring 4 will be supported on the support columns 2.

[0031] Each steel bar fixing clamp 3 includes two clamping rods 31, which are fixedly connected to the support rod 1 at a certain tilt angle. Specifically, the two clamping rods 31 are extended at an tilt angle away from each other, and a region for clamping the steel bar is formed between the two clamping rods 31. When the steel bar is inserted into the jaws of the pipe crimping clamp, its two ends are clamped by a pair of steel bar fixing clamps 3. One clamping rod 31 contacts one side of the supporting steel bar, and the other clamping rod 31 releases the other side of the supporting steel bar, thereby stably clamping the steel bar. The steel bar can be clamped to prevent movement during the bending process.

[0032] By the cooperation between the pipe crimping pliers and the support column, and the back-and-forth cyclic squeezing action of the manually operated pipe crimping pliers, the steel bars are appropriately bent. Specifically, during operation, the bent steel bars are clamped in the jaws of the pipe crimping pliers, and the end where the jaws of the pipe crimping pliers are located is fixedly connected to the clamp ring through a pin shaft 51. The two support columns 2 on both sides can be used as force support points, and the bent steel bars are clamped in the steel bar fixing clamps 3 on both sides. After the steel bars are fixed, the hand-held pipe crimping pliers are squeezed manually so that the part of the steel bars entering the jaws is subjected to pressure in the direction of the support rod 1. Under the action of the support columns 2 on both sides, the support columns 2 form pressure on the steel bars in the direction away from the support rod 1, which is equivalent to a positive bending moment in the middle and a negative bending moment on both sides, thereby causing the steel bars to gradually bend. The required bending angle of the steel bars is determined by adjusting the number of squeezing times and the magnitude of the applied force of the hand-held pipe crimping pliers, which can be determined according to actual needs, so that steel bars with different bending angles can be obtained according to needs.

[0033] In some embodiments, the position of the support column 2 is adjustable. Specifically, a slide groove is provided on the support rod 1 along its length, and the lower end of the support column 2 is embedded in the slide groove, so that the position of the support column 2 can be adjusted by sliding along the slide groove. By adjusting the position of the support column 2, the steel bar can be bent into various desired curvatures.

[0034] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and deformations according to the present invention, but these corresponding changes and deformations shall fall within the protection scope of the claims of the present invention.

Claims

1. A portable steel bar bending device, characterized in that: include: Support rods; A clamping ring, fixedly connected to the side wall of the support rod, and used for being fixedly connected to the end of the pipe crimping pliers where the jaws are located; A pair of support columns, fixedly connected to the support rod body on both sides of the clamp ring, are used to support two points of the steel bar; A pipe crimping clamp, the jaws of which are used for clamping steel bars.

2. The portable steel bar bending device according to claim 1, characterized in that: It also includes a pair of steel bar fixing clamps, which are fixedly connected to the support rod bodies of the pair of support columns in opposite directions and are used to clamp the two ends of the steel bars.

3. The portable steel bar bending device according to claim 1, characterized in that: A through hole is arranged at the end of the pipe crimping pliers where the jaws are located, and a pin shaft passes through the through hole to fix the pipe crimping pliers and the clamp ring.

4. The portable steel bar bending device according to claim 1, characterized in that: A pair of support columns are equidistant from the clamping ring.

5. The portable steel bar bending device according to claim 1, characterized in that: A slide groove is arranged on the support rod along its length direction, and the lower end of the support column is slidably embedded in the slide groove.

6. The portable steel bar bending device according to claim 2, characterized in that: Each steel bar fixing clamp comprises two clamping rods, which are extended in opposite directions at an inclined angle, and a region for clamping the steel bars is formed between the two clamping rods.

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