Portable steel bar bending device

Abstract

The utility model relates to the technical field of steel bar wire machining, and discloses a portable steel bar bending device which comprises a support, a hook reference part and a bending force application part. Two groups of hook reference parts are arranged at one end of the bracket, are parallel to each other and are arranged at intervals, and the two groups of hook reference parts are used for being hooked on reference steel bars and are rotatably arranged around the reference steel bars; the bending force application part is located in the area between the two sets of hook reference parts and arranged on the support, and the bending force application part is used for applying force to the target reinforcing steel bar when rotating around the reference reinforcing steel bar so that the target reinforcing steel bar can be bent at the preset position. The whole structure is simple, portable and capable of being hooked on a longitudinal bar anytime and anywhere and then directly bending a constructional steel bar, the accuracy and the matching degree of a rectangle formed by the steel bar can be higher, the structural requirement is met, and the construction quality and the construction efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar wire processing, in particular to a portable steel bar bending device. Background Art

[0002] With the development of tunnel engineering, tunnel projects are moving towards more complex geological environments. Before the construction of the secondary lining of the tunnel, the steel cage must be tied, which involves the bending of the structural steel bars. During construction, the structural steel bars are generally bent together using an electric steel bar bending machine (such as CN 221184509U, CN118341905A, CN118143159A), then transported to the designated construction area and put on the corresponding longitudinal reinforcement position. However, since the bending construction is not carried out directly on the longitudinal reinforcement, the rectangle formed by the machine bending the structural steel bars sometimes has size problems that are too large or too small. In addition, if there are variable cross-sections or only a few bends are required, it is cumbersome to use the electric bending machine to bend them back and forth, which affects construction efficiency. Utility Model Content

[0003] The utility model provides a portable steel bar bending device with a simple structure, which is light and portable. It can be hooked on the longitudinal reinforcement at any time and place and then directly bend the structural reinforcement. It can also make the rectangle formed by the reinforcement higher in accuracy and matching degree, thereby meeting the structural requirements, which is beneficial to improving the construction quality and efficiency, and solving the technical problems of the existing steel bar bending equipment, which requires centralized bending of the reinforcement at a designated location, which is prone to errors, and the round-trip correction leads to low construction efficiency.

[0004] The utility model provides a portable steel bar bending device, comprising a bracket, a bending hook reference portion and a bending force applying portion; two groups of bending hook reference portions are arranged at one end of the bracket, the two groups of bending hook reference portions are arranged in parallel and at intervals, the two groups of bending hook reference portions are used to hook on the reference steel bar and are arranged rotatably around the reference steel bar; the bending force applying portion is located in the area between the two groups of bending hook reference portions and is arranged on the bracket, and the bending force applying portion is used to apply force to the target steel bar when rotating around the reference steel bar so that the target steel bar is bent at a preset position.

[0005] Furthermore, the bracket includes a U-shaped portion and a handle portion, the connecting end of the handle portion is fixedly connected to the curved section of the U-shaped portion, the gripping end of the handle portion is arranged away from the U-shaped portion, and a group of hook reference portions are respectively arranged at the ends of the straight section of the U-shaped portion.

[0006] Furthermore, the U-shaped portion and the hook reference portion are an integrally formed structure.

[0007] Furthermore, the hook reference portion is connected to the U-shaped portion through threads.

[0008] Furthermore, the bending force applying portion is located within the enclosed area of ​​the U-shaped portion.

[0009] Furthermore, the bending force applying portion includes a bending plate, and a concave opening is opened on one side of the bending plate facing the bending hook reference portion, or the one side of the bending plate facing the bending hook reference portion is set as a stepped edge, or the one side of the bending plate facing the bending hook reference portion is set as an arc edge matching the target steel bar.

[0010] Furthermore, the bent plate is fixedly connected to the bracket.

[0011] Furthermore, the bending force applying portion is arranged on the bracket in a slidable and adjustably manner.

[0012] Furthermore, the bending force applying part also includes a sliding sleeve or a slide rail arranged on the bending plate, and the bending plate can be slidably arranged on the bracket through the sliding sleeve or the slide rail. A positioning member is provided between the bracket and the sliding sleeve or the slide rail for positioning the bending plate after sliding adjustment.

[0013] Furthermore, reinforcing ribs are arranged on the outer wall surface of the bracket in the axial direction and / or in the circumferential direction.

[0014] The utility model has the following beneficial effects:

[0015] The portable steel bar bending device of the utility model has a bracket as the overall structural support basis, and two groups of hook reference parts are arranged at one end of the bracket, which are hooked on the reference steel bar at the same time by the two groups of hook reference parts, and the reference positioning is performed by the reference steel bar, so that the entire portable steel bar bending device can be rotated around the reference steel bar through the two groups of hook reference parts hooked on the reference steel bar, and the double hook structure is adopted, so the stability of the structural movement process after the hook is better, and it is not easy to fall off or become unstable; on this basis, a bending force applying part is also arranged on the bracket between the two groups of hook reference parts, so that the bending force applying part matches the position of the target steel bar to be bent, and there are two cases here; in the first case, the target steel bar is in a free state, and the free end of the target steel bar needs to be fixed In the first case, the target steel bar is fixed, and then the bending force applying part acts on the bending section. When the portable steel bar bending device rotates relative to the reference steel bar through the two sets of hook reference parts, the bending force applying part first contacts the bending section of the target steel bar, and then gradually applies force to the target steel bar at the contact position using the lever principle, thereby bending the target steel bar and bending the bending section of the target steel bar to a preset angle. In the second case, the target steel bar is in a fixed state, and the bending force applying part acts on the bending section. When the portable steel bar bending device rotates relative to the reference steel bar through the two sets of hook reference parts, the bending force applying part first contacts the bending section of the target steel bar, and then gradually applies force to the target steel bar at the contact position using the lever principle, thereby bending the target steel bar and bending the bending section of the target steel bar to a preset angle. The entire structure is simple, light and portable. It can be hooked on the longitudinal bar anytime and anywhere and then directly bend the structural steel bar. It can also make the rectangle formed by the steel bar more accurate and matching, thereby meeting the structural requirements, thereby improving the construction quality and efficiency.

[0016] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic structural diagram of a portable steel bar bending device according to a preferred embodiment of the present invention;

[0019] Figure 2 This is a schematic structural diagram of a portable steel bar bending device in a preferred embodiment of the present invention, in which the hook reference portion is a positive and negative hook;

[0020] Figure 3This is a schematic diagram of the structure of the portable steel bar bending device of the preferred embodiment of the utility model, in which the bending force applying part is slidably adjustable;

[0021] Figure 4 This is a structural diagram of a portable steel bar bending device according to a preferred embodiment of the present invention, wherein the steel bar is inserted into a concave opening;

[0022] Figure 5 This is a structural diagram of the portable steel bar bending device of the preferred embodiment of the utility model, in which the steel bar is located at the top of the notch;

[0023] Figure 6 This is a schematic diagram of the back structure of the portable steel bar bending device in the preferred embodiment of the present invention in the bent steel bar state;

[0024] Figure 7 This is a schematic diagram of the forward structure of the portable steel bar bending device in the preferred embodiment of the present invention in the bent steel bar state;

[0025] Figure 8 It is a structural schematic diagram of the bending effect of stirrups in a preferred embodiment of the present utility model.

[0026] Legend:

[0027] 100. Bracket; 101. U-shaped portion; 102. Handle portion; 200. Hook reference portion; 300. Bending force application portion; 301. Bending plate; 302. Concave opening; 303. Sliding sleeve or slide rail; 304. Positioning member; 305. Notch top; 400. Reference steel bar; 500. Target steel bar. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0029] Figure 1 This is a schematic structural diagram of a portable steel bar bending device according to a preferred embodiment of the present invention; Figure 2 This is a schematic structural diagram of a portable steel bar bending device in a preferred embodiment of the present invention, in which the hook reference portion is a positive and negative hook; Figure 3 This is a schematic diagram of the structure of the portable steel bar bending device of the preferred embodiment of the utility model, in which the bending force applying part is slidably adjustable; Figure 4 This is a structural diagram of a portable steel bar bending device according to a preferred embodiment of the present invention, wherein the steel bar is inserted into a concave opening; Figure 5 This is a structural diagram of the portable steel bar bending device of the preferred embodiment of the utility model, in which the steel bar is located at the top of the notch; Figure 6 This is a schematic diagram of the back structure of the portable steel bar bending device in the preferred embodiment of the present invention in the bent steel bar state; Figure 7This is a schematic diagram of the forward structure of the portable steel bar bending device in the preferred embodiment of the present invention in the bent steel bar state; Figure 8 It is a structural schematic diagram of the bending effect of stirrups in a preferred embodiment of the present utility model.

[0030] like Figure 1 and Figure 4 As shown, the portable steel bar bending device of this embodiment includes a bracket 100, a hook reference portion 200 and a bending force applying portion 300; two groups of hook reference portions 200 are arranged at one end of the bracket 100, and the two groups of hook reference portions 200 are arranged in parallel and at intervals, and the two groups of hook reference portions 200 are used to hook on the reference steel bar 400 and are arranged rotatably around the reference steel bar 400; the bending force applying portion 300 is located in the area between the two groups of hook reference portions 200 and is arranged on the bracket 100, and the bending force applying portion 300 is used to apply force to the target steel bar 500 when rotating around the reference steel bar 400 so that the target steel bar 500 is bent at a preset position. The portable steel bar bending device of the present invention has a bracket 100 as the overall structural support basis, and two sets of hook reference parts 200 are arranged at one end of the bracket 100, which are hooked on the reference steel bar 400 at the same time by the two sets of hook reference parts 200, and are positioned by the reference steel bar 400, so that the entire portable steel bar bending device can be rotated around the reference steel bar 400 by the two sets of hook reference parts 200 hooked on the reference steel bar 400, and the double hook structure is adopted, so the stability of the structural movement process after the hooking is better, and it is not easy to fall off or become unstable; on this basis, a bending force applying part 300 is further arranged on the bracket 100 between the two sets of hook reference parts 200, so that the bending force applying part 300 matches the position of the target steel bar 500 to be bent, and there are two situations here; in the first situation, the target steel bar 500 is in a free state, and the free end of the target steel bar 500 needs to be fixed (it can be positioned by pressing, or it can be temporarily positioned by using the nearby longitudinal bars, which can also be used for positioning). The bending force applying part 300 is then applied to the bending section, and when the portable steel bar bending device rotates relative to the reference steel bar 400 through the two sets of hook reference parts 200, the bending force applying part 300 first contacts the bending section of the target steel bar 500, and then gradually applies force to the target steel bar 500 at the contact position by using the lever principle, thereby bending the target steel bar 500, and bending the bending section of the target steel bar 500 to a preset angle; in the second case, the target steel bar 500 is in a fixed state, and the bending force applying part 300 acts on the bending section, and when the portable steel bar bending device rotates relative to the reference steel bar 400 through the two sets of hook reference parts 200, the bending force applying part 300 first contacts the bending section of the target steel bar 500, and then gradually applies force to the target steel bar 500 at the contact position by using the lever principle, thereby bending the target steel bar 500, and bending the bending section of the target steel bar 500 to a preset angle, as shown in FIG. Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown. The entire structure is simple, light and portable. It can be hooked on the longitudinal reinforcement anytime and anywhere and then directly bend the structural reinforcement. It can also make the rectangle formed by the reinforcement more accurate and matchable, thereby meeting the structural requirements, which is beneficial to improving the construction quality and efficiency. Optionally, the two sets of hook reference portions 200 can be arranged in the same direction. Optionally, the two sets of hook reference portions 200 can be arranged in the opposite direction, that is, forming positive and negative hooks, which are hooked on the reference reinforcement 400 at the same time and are not easy to loosen, such as Figure 2 shown.

[0031] like Figure 1 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, in this embodiment, the bracket 100 includes a U-shaped portion 101 and a handle portion 102. The connection end of the handle portion 102 is fixedly connected to the curved section of the U-shaped portion 101, and the gripping end of the handle portion 102 is disposed away from the U-shaped portion 101. A set of hook reference portions 200 are disposed at the ends of the straight sections of the U-shaped portion 101. The U-shaped portion 101 and the handle portion 102 are combined to form a Y-shaped structure. The hook reference portions 200 at the front end of the Y-shaped structure hook with the reference steel bar 400 to form a stable double-hinged connection, serving as the fulcrum of the lever. The bent plate 301 in the inner cavity of the U-shaped portion 101 contacts the bent section of the target steel bar 500 to form the force-bearing point of the lever, while the handle portion 102 serves as the force-applying point. By applying force to the handle portion 102, the bent section of the target steel bar 500 is bent. Optionally, the handle portion 102 is a telescopic rod with adjustable length. Optionally, the handle portion 102 is formed by splicing multiple unit rods through end threaded connections. The splicing length of the unit rods is determined according to the size of the construction space and the radial size of the target steel bar 500, thereby ensuring that the movement of the portable steel bar bending device is not hindered and that the target steel bar 500 can be bent with relatively little effort. Optionally, the handle portion 102 is formed by sequentially plugging multiple unit rods and using spring ball clamping for positioning, similar to the structure of an umbrella handle, but it needs to have a certain wall thickness to ensure a certain strength to avoid deformation when force is applied; similarly, the telescopic length of the handle portion 102 is determined according to the size of the construction space and the radial size of the target steel bar 500, thereby ensuring that the movement of the portable steel bar bending device is not hindered and that the target steel bar 500 can be bent with relatively little effort.

[0032] like Figure 1As shown, in this embodiment, the U-shaped portion 101 and the hook reference portion 200 are integrally formed as a unitary structure. This provides for improved structural integrity and can be made from excess or scrapped steel bars bent on-site, thereby reducing manufacturing costs. However, the strength and / or radial dimensions of the steel bars used must be greater than the target steel bar 500 to prevent deformation during force application.

[0033] In this embodiment, the hook reference portion 200 is connected to the U-shaped portion 101 by screw threads. It can be made in two parts and then connected by screw threads to reduce the difficulty of production. In addition, different hook reference portions 200 can be selected for connection and assembly according to different reference steel bars 400 to increase the scope of application.

[0034] like Figure 1 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, in this embodiment, the bending force applying portion 300 is located within the enclosed area of ​​the U-shaped portion 101. The bending force applying portion 300 is located between the two sets of hook reference portions 200 and within the enclosed area of ​​the U-shaped portion 101, so that the fulcrum and force points of the lever system are distributed in a triangular shape, resulting in better structural stability and mechanical properties.

[0035] like Figure 1 and Figure 3As shown, in this embodiment, the bending force application portion 300 includes a bending plate 301, and the bending plate 301 has a concave opening 302 on one side facing the hook reference portion 200; the bottom surface of the concave opening 302 can be used to contact and apply force to the target steel bar 500, or the concave top 305 outside the concave opening 302 can be used to contact and apply force to the target steel bar 500, forming different force application points to achieve the selection and fine-tuning control of different bending positions. Optionally, the side of the bending plate 301 facing the hook reference portion 200 is set as a stepped edge; the different step edges of the stepped edge can be used to contact and apply force to the target steel bar 500, forming different force application points to achieve the selection and fine-tuning control of different bending positions. Optionally, the side edge of the bending plate 301 facing the hook reference portion 200 is configured as an arcuate edge that matches the target steel bar 500; the force-applying edge of the bending plate 301 is configured as an arcuate edge. When the portable steel bar bending device applies force, the arcuate edge contacts the bent section of the target steel bar 500, forming a rolling contact, thereby avoiding stress concentration that may cause notches or fractures on the surface of the target steel bar 500, thereby ensuring the quality of the bent target steel bar 500. Optionally, a concave opening 302 is provided on the side edge of the bending plate 301 facing the hook reference portion 200, and the force-applying edge of the bending plate 301 is configured as an arcuate edge, that is, the plate edge of the bending plate 301 is provided with a concave opening 302 inwardly of the plate, and the plate edge of the bending plate 301 is curved along the thickness direction, thereby forming an arcuate edge. Optionally, the side edge of the bent plate 301 facing the hook reference portion 200 is configured as a stepped edge, and the force-applying edge of the bent plate 301 is configured as an arcuate edge. Specifically, the edge of the bent plate 301 is stepped along its length, and the edge of the bent plate 301 is curved along its thickness, thereby forming an arcuate edge. Optionally, the corners of the stepped edge of the bent plate 301 are all arcuate to avoid forming sharp angles that could cause stress concentration failure with the target steel bar 500.

[0036] like Figure 1 As shown, in this embodiment, the bending plate 301 is fixedly connected to the bracket 100 to form a stable connection structure, thereby being able to stably apply force to the target steel bar 500 to ensure that the target steel bar 500 is bent at a fixed position.

[0037] like Figure 3 As shown, in this embodiment, the bending force applying portion 300 is slidably and adjustably arranged on the bracket 100. The position of the bending force applying portion 300 can be adjusted according to the different positions of the bending sections of different target steel bars 500, thereby achieving precise force application on the bending sections of the target steel bars 500, ensuring that the target steel bars 500 are bent at the designed position and the bending accuracy of the target steel bars 500 is guaranteed.

[0038] like Figure 3As shown, in this embodiment, the bending force applying portion 300 further includes a sliding sleeve or a slide rail 303 disposed on the bending plate 301. The bending plate 301 is slidably disposed on the bracket 100 via the sliding sleeve or the slide rail 303. A positioning member 304 is provided between the bracket 100 and the sliding sleeve or the slide rail 303 for positioning the bending plate 301 after sliding adjustment. By unlocking the positioning member 304, the bending plate 301 can slide axially on the bracket 100 via the sliding sleeve or the slide rail 303, thereby controlling the position of the bending plate 301 relative to the hook reference portion 200, thereby adjusting the force application position of the target steel bar 500, ensuring that the target steel bar 500 can be bent according to actual conditions and ensuring bending accuracy.

[0039] In this embodiment, the outer wall surface of the bracket 100 is provided with reinforcing ribs along the axial direction and / or along the circumferential direction, so that the bracket 100 has sufficient strength to ensure the structural stability of the entire portable steel bar bending device. Optionally, the bracket 100 can also be a threaded steel bracket.

[0040] During implementation, a portable steel bar bender is provided, comprising a bending handle, a connecting rod, a bifurcated connecting rod (U-shaped portion 101), a bending plate 301 and a steel bar hook (hook reference portion 200); the bending handle and the connecting rod are combined to form a handle portion 102. The bifurcated connecting rod and the steel bar hook are an integral steel bar formed by bending. The connecting rod is welded to the top of the bifurcated connecting rod, and a cloth strip is tied to the tail end of the connecting rod to form a bending handle. The welding position of the lower end of the bifurcated connecting rod is adjusted according to the diameter of the structural steel bar (target steel bar 500) and the longitudinal bar (reference steel bar 400), and the bending plate 301 is welded. The bending plate 301 is in the shape of a "concave", with its notch facing the direction of the steel bar hook. The width of the notch bottom of the bending plate 301 (the bottom of the concave opening 302) is greater than the structural steel bar to be bent, so as to facilitate the insertion of the structural steel bar. The distance between the notch top 305 of the bending plate 301 and the longitudinal bar cannot be less than the diameter of the structural steel bar, and should not be greater than 1.2 times the diameter of the structural steel bar, so as to avoid the structural steel bar being unable to be bent. Its advantages are: 1) It is easy to make and uses local materials; 2) Compared with electric rebar bending machines, it has a compact structure, is easy to carry, and is suitable for construction sites; 3) It can bend rebars according to actual site conditions, with accurate rebar hoops and compact rebar cages.

[0041] The structure of each part of the portable steel bar bender is as follows Figure 1As shown, the bender can be directly welded by steel bars and steel plates at the construction site, specifically: 1) Take a section of steel bar with a diameter roughly equivalent to the longitudinal bar, and bend it into a shape composed of a bifurcated connecting rod (3) and a steel bar hook. In particular, the bending degree of the steel bar hook should be sufficient to hook the longitudinal bar; 2) At the bottom end of the bifurcated connecting rod, a bending plate 301 is welded above the steel bar hook. The width of the concave bottom of the concave opening 302 of the bending plate 301 should be larger than the diameter of the structural steel bar, so that the structural steel bar can be easily inserted, and the distance between the concave top 305 of the bending plate 301 and the longitudinal bar cannot be less than the diameter of the structural steel bar, nor should it be greater than 1.2 times the diameter of the structural steel bar, so as to avoid being unable to bend the structural steel bar; 3) Weld a section of steel bar with a diameter roughly equivalent to the longitudinal bar at the top of the bifurcated connecting rod to form a connecting rod, and tie a cloth strip at the end of the connecting rod to form a handle for easy construction. The specific use process of the portable steel bar bender is as follows: Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, Figure 4 As shown, when the structural steel bar is to be bent, the steel bar hook of the portable steel bar bender is hooked on the longitudinal bar, and the structural steel bar is inserted into the bottom of the concave opening 302 of the bending plate 301; Figure 5 As shown, after the bending point of the stirrup is determined, the structural steel bar is inserted into the gap between the concave top 305 of the concave opening 302 of the bending plate 301 and the longitudinal reinforcement; Figure 6 and Figure 7 As shown in the figure, hold the handle to hook the longitudinal bar and rotate it downwards to complete the bending of the structural steel bar. Figure 8 shown.

[0042] Matters not covered in this utility model are known technologies.

[0043] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A portable steel bar bending device, characterized in that: It comprises a bracket (100), a hook reference portion (200), and a bending force application portion (300); Two sets of hook reference parts (200) are arranged at one end of the bracket (100), the two sets of hook reference parts (200) are arranged in parallel and at intervals, and the two sets of hook reference parts (200) are used to hook on the reference steel bar (400) and are arranged rotatably around the reference steel bar (400); The bending force applying portion (300) is located in the area between the two sets of hook reference portions (200) and is arranged on the bracket (100). The bending force applying portion (300) is used to apply force to the target steel bar (500) when rotating around the reference steel bar (400) so that the target steel bar (500) is bent at a preset position. The bending force applying portion (300) comprises a bending plate (301), wherein a concave opening (302) is provided on one side of the bending plate (301) facing the bending hook reference portion (200), or the side of the bending plate (301) facing the bending hook reference portion (200) is set as a stepped edge, or the side of the bending plate (301) facing the bending hook reference portion (200) is set as an arc edge matching the target steel bar (500); The bending force applying portion (300) is arranged on the bracket (100) in a sliding and adjustably manner.

2. The portable steel bar bending device according to claim 1, characterized in that: The bracket (100) comprises a U-shaped portion (101) and a handle portion (102). The connection end of the handle portion (102) is fixedly connected to the curved section of the U-shaped portion (101). The gripping end of the handle portion (102) is arranged away from the U-shaped portion (101). A group of hook reference portions (200) are respectively arranged correspondingly at the ends of the straight line segments of the U-shaped portion (101).

3. The portable steel bar bending device according to claim 2, characterized in that: The U-shaped portion (101) and the hook reference portion (200) are an integrally formed structure.

4. The portable steel bar bending device according to claim 2, characterized in that: The hook reference portion (200) is connected to the U-shaped portion (101) via threads.

5. The portable steel bar bending device according to claim 2, characterized in that: The bending force applying portion (300) is located within the enclosed area of ​​the U-shaped portion (101).

6. The portable steel bar bending device according to any one of claims 1 to 5, characterized in that: The bending force applying portion (300) further includes a sliding sleeve or a sliding rail (303) arranged on the bending plate (301). The bending plate (301) is slidably arranged on the bracket (100) via a sliding sleeve or a sliding rail (303). A positioning member (304) is provided between the bracket (100) and the sliding sleeve or the slide rail (303) for positioning the bending plate (301) after sliding adjustment.

7. The portable steel bar bending device according to any one of claims 1 to 5, characterized in that: Reinforcing ribs are arranged on the outer wall surface of the bracket (100) in the axial direction and / or in the circumferential direction.

Images