Portable steel bar bending device

Abstract

The utility model discloses a portable steel bar bending device which comprises a positioning disc and a jacking wheel capable of rotating around the positioning disc in the circumferential direction, the jacking wheel rotates around the positioning disc in the circumferential direction so that a steel bar clamped between the positioning disc and the jacking wheel can be bent, the jacking wheel is connected with the positioning disc through a support, and the jacking wheel is connected with the positioning disc through the support. The support comprises an arc-shaped rod concentric with the positioning disc, the arc-shaped rod is rotationally connected with the center of the positioning disc through a connecting rod, the support further comprises a pressing rod, one end of the pressing rod is rotationally connected with the center of the positioning disc, and a rod body of the pressing rod is connected with the arc-shaped rod through an indexing clamping structure. The indexing clamping structure enables the pressing rod to clamp different parts of the arc-shaped rod. The rod body of the pressing rod is connected with the arc-shaped rod through the indexing clamping structure, the indexing clamping structure enables the pressing rod to clamp different portions of the arc-shaped rod, and therefore the distance or the angle of the pressing rod relative to the top pressing wheel is adjusted.

Description

Technical Field

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

[0002] During the construction of reinforced concrete structures such as housing construction, petrochemical civil engineering, water conservancy, and municipal engineering, all places where steel bars are bent and anchored require bending and anchoring. During the construction process, the steel bars in different places need to be bent at different angles. However, during the actual construction acceptance process, it was found that the reinforcing bars, stirrups, hooks, etc. in many places were missing due to various factors, resulting in failure to pass the acceptance. The usual on-site disposal method is to take the steel bar of this type to the steel bar processing shed for reprocessing, and then send it back to the site after processing. Using this method to process steel bars consumes mechanical electricity, manpower, and is highly dangerous, which delays the acceptance construction time. Traditional bending tools are mostly levers with two locking parts on the lever, so that the steel bar is locked between the two locking parts, and then the lever is rotated to bend the steel bar. However, this lever requires a certain force angle and rotation range. However, some of the steel bars that need to be bent are located in narrow corners, making the lever difficult to use or limited in rotation angle. Utility Model Content

[0003] In order to solve the problem of unchanged bending of steel bars in special positions, the utility model proposes a portable steel bar bending device, which allows the pressure rod to rotate in a position that is convenient for movement, thereby indirectly controlling the rotation of the top pressure wheel and avoiding limited rotation of the pressure rod.

[0004] The technical solution adopted by the present invention is to design a portable steel bar bending device, including a positioning plate and a top pressure wheel that can rotate circumferentially around the positioning plate, the top pressure wheel rotates circumferentially around the positioning plate to bend the steel bar clamped between the positioning plate and the top pressure wheel, the top pressure wheel is connected to the positioning plate through a bracket, the bracket includes an arc rod concentric with the positioning plate, the arc rod is connected to the center of the positioning plate for rotation through a connecting rod, and also includes a pressure rod, one end of the pressure rod is connected to the center of the positioning plate for rotation, the rod body of the pressure rod is connected to the arc rod through a graduated locking structure, and the graduated locking structure enables the pressure rod to lock different parts of the arc rod.

[0005] In certain embodiments, the graduated locking structure includes ratchets distributed along the circumference of the arc-shaped rod, and the pressure rod is provided with a locking piece that unidirectionally cooperates with the ratchets.

[0006] In some embodiments, the pressure rod is provided with an elastic reset member that pushes the locking member toward the ratchet to exert constant pressure.

[0007] In some embodiments, the indexing card stop structure includes insertion holes circumferentially distributed along the arc-shaped rod. A plug that telescopically moves relative to the insertion holes is provided on the pressing rod. The plug is inserted into the insertion hole, so that the pressing rod and the arc-shaped rod are in a rotation-direction locking connection.

[0008] In some embodiments, the plug is arranged in a telescopic hole. A support spring is arranged between the plug and the telescopic hole. The support spring enables the plug to be inserted into the insertion hole. A handle that extends out of the telescopic hole in a direction perpendicular to the telescopic direction is provided on the plug.

[0009] In some embodiments, the arc-shaped rod is a semi-circular arc-shaped rod, and both ends of the connecting rod are connected to both ends of the arc-shaped rod.

[0010] In some embodiments, the constant-pressure wheels are arranged at both ends of the arc-shaped rod.

[0011] In some embodiments, the positioning disk is fixedly connected to a support rod that radially extends relative to the positioning disk.

[0012] In some embodiments, the arc-shaped rod, the connecting rod, and the pressing rod are all located on one side of the positioning disk.

[0013] In some embodiments, the support rod and the pressing rod are respectively located on both sides of the positioning disk.

[0014] Compared with the prior art, the present utility model has the following beneficial effects:

[0015] The rod body of the pressing rod of the present utility model is connected to the arc-shaped rod through the indexing card stop structure. The indexing card stop structure enables the pressing rod to stop at different parts of the arc-shaped rod, thereby adjusting the distance or angle of the pressing rod relative to the top pressure wheel. Furthermore, the pressing rod can rotate at a position where it is convenient to move, so as to indirectly control the rotation of the top pressure wheel by using the arc-shaped rod, thereby avoiding the rotation of the pressing rod being restricted. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present utility model will be described in detail below with reference to specific embodiments and the accompanying drawings. For the purpose of showing details and facilitating the understanding of its principle, it is not necessarily drawn to scale, and similar reference numerals may describe similar components in different views. The drawings generally illustrate the embodiments discussed herein by way of example and not limitation. Among them:

[0017] Figure 1 is a front view schematic diagram of the bending device of Embodiment 1.

[0018] Figure 2 is a schematic diagram of the steel bar located between the positioning disk and the top pressure wheel of Embodiment 1.

[0019] Figure 3 It is a front view schematic diagram of the bending device in the second embodiment.

[0020] Figure 4 It is a rear view schematic diagram of the bending device in the second embodiment.

[0021] In the figure, 1 is a positioning disk; 2 is a pressing wheel; 3 is a steel bar; 4 is an arc-shaped rod; 5 is a connecting rod; 6 is a pressing rod; 7 is a support rod; 8 is a ratchet tooth; 9 is a telescopic head; 10 is a telescopic hole; 11 is a support spring; 12 is a handle; 13 is a jack; 14 is a plug. Specific implementation mode

[0022] The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments, and the following implementation modes do not limit the invention involved in the claims. In addition, all combinations of the features described in the implementation modes are not necessarily essential to the solution of the invention.

[0023] The principle and structure of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0024] Embodiment 1

[0025] As Figure 1 , 2 shown, a portable steel bar 3 bending device includes a positioning disk 1 and a pressing wheel 2 that can rotate circumferentially around the positioning disk 1. The circumferential rotation of the pressing wheel 2 around the positioning disk 1 causes the steel bar 3 sandwiched between the positioning disk 1 and the pressing wheel 2 to bend. The pressing wheel 2 is connected to the positioning disk 1 through a bracket. The bracket includes an arc-shaped rod 4 concentric with the positioning disk 1. The arc-shaped rod 4 is rotationally connected to the center of the positioning disk 1 through a connecting rod 5. It also includes a pressing rod 6. One end of the pressing rod 6 is rotationally connected to the center of the positioning disk 1. The rod body of the pressing rod 6 is connected to the arc-shaped rod 4 through a graduation card stop structure. The graduation card stop structure enables the pressing rod 6 to stop at different parts of the arc-shaped rod 4, thereby adjusting the distance or angle of the pressing rod 6 relative to the pressing wheel 2. Furthermore, the pressing rod 6 can rotate at a position convenient for movement, thereby indirectly controlling the rotation of the pressing wheel 2 by using the arc-shaped rod, and avoiding the rotation of the pressing rod 6 being restricted.

[0026] The arc-shaped rod 4 is a semi-circular arc-shaped rod 4, and both ends of the connecting rod 5 are connected to both ends of the arc-shaped rod. Fixed pressure wheels are provided at both ends of the arc-shaped rod 4. The arc-shaped rod 4, the connecting rod 5, and the pressure rod 6 are all located on one side of the positioning disk 1. The positioning disk 1 is fixedly connected to a support rod 7 that radially extends relative to the positioning disk 1. During use, the support rod 7 can be fixed. The support rod 7 and the pressure rod 6 are respectively located on both sides of the positioning disk 1, thereby preventing interference with each other when they rotate. For example, one hand can fix the support rod 7 and the other hand can stop the rotation of the lever.

[0027] The indexing and locking structure of this embodiment includes ratchet teeth 8 distributed circumferentially along the arc-shaped rod 4, and a locking member that unidirectionally cooperates with the ratchet teeth 8 is provided on the pressure rod 6. An elastic reset member for pushing the locking member towards the ratchet teeth 8 to apply fixed pressure is provided on the pressure rod 6. The locking member is a telescopic head 9, and a telescopic hole 10 is provided on the lever. One end of the telescopic head 9 is slidably fitted in the telescopic hole 10. A support spring 11 is provided between the telescopic head 9 and the telescopic hole 10. The support spring 11 causes the telescopic head 9 to protrude towards the arc-shaped rod 4. A handle 12 that extends out of the telescopic hole 10 perpendicular to the telescopic direction is provided on the telescopic head 9. By controlling the telescopic head 9 to expand and contract in the telescopic hole 10 through the handle 12, the locking or separation of the telescopic head 9 and the ratchet teeth 8 can be achieved. When the telescopic head 9 is locked with the ratchet teeth 8, the lever can be used to drive the arc-shaped rod 4 to rotate together, thereby indirectly controlling the top pressure wheel 2.

[0028] Embodiment 2

[0029] As Figure 3 、 4 shown, different from the above embodiment, the indexing and locking structure of this embodiment includes insertion holes 13 distributed circumferentially along the arc-shaped rod 4, and a plug 14 that telescopically moves relative to the insertion holes 13 is provided on the pressure rod 6. The plug 14 is inserted into the insertion holes 13, so that the pressure rod 6 and the arc-shaped rod 4 are locked and connected in the rotation direction.

[0030] The plug 14 is provided in the telescopic hole 10. A support spring 11 is provided between the plug 14 and the telescopic hole 10. The support spring 11 causes the plug 14 to be inserted into the insertion holes 13. A handle 12 that extends out of the telescopic hole 10 perpendicular to the telescopic direction is provided on the plug 14. By controlling the plug 14 to expand and contract in the telescopic hole 10 through the handle 12, the locking or separation of the plug 14 and the ratchet teeth 8 can be achieved.

[0031] When the plug 14 is inserted into the insertion holes 13, the lever can be used to drive the arc-shaped rod 4 to rotate together, thereby indirectly controlling the top pressure wheel 2.

[0032] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains may make various modifications or supplements to the described specific embodiments, or use similar methods for substitution, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. A portable steel bar bending device, comprising a positioning disc and a pressing wheel capable of circumferentially rotating around the positioning disc, wherein the circumferential rotation of the pressing wheel around the positioning disc causes the steel bar clamped between the positioning disc and the pressing wheel to be bent, characterized in that, The top pressure wheel is connected to the positioning disk through a bracket. The bracket includes an arc-shaped rod concentric with the positioning disk. The arc-shaped rod is rotatably connected to the center of the positioning disk through a connecting rod. It further includes a pressure rod. One end of the pressure rod is rotatably connected to the center of the positioning disk. The rod body of the pressure rod is connected to the arc-shaped rod through a indexing locking structure. The indexing locking structure enables the pressure rod to lock different parts of the arc-shaped rod.

2. The portable steel bar bending device according to claim 1, characterized in that, The indexing locking structure includes ratchet teeth distributed circumferentially along the arc-shaped rod. A locking member that cooperates unidirectionally with the ratchet teeth is provided on the pressure rod.

3. The portable steel bar bending device according to claim 2, wherein An elastic reset member that pushes the locking member towards the ratchet teeth to fix the pressure is provided on the pressure rod.

4. The portable steel bar bending device according to claim 1, characterized in that The indexing locking structure includes insertion holes distributed circumferentially along the arc-shaped rod. A plug that telescopically moves relative to the insertion holes is provided on the pressure rod. The plug is inserted into the insertion holes, so that the pressure rod and the arc-shaped rod are locked and connected in the rotational direction.

5. The portable steel bar bending device according to claim 4, characterized in that, The plug is arranged in a telescopic hole. A support spring is arranged between the plug and the telescopic hole. The support spring enables the plug to be inserted into the insertion hole. A handle that extends out of the telescopic hole perpendicular to the telescopic direction is provided on the plug.

6. The portable steel bar bending device according to claim 1, characterized in that, The arc-shaped rod is a semi-circular arc-shaped rod. Both ends of the connecting rod are connected to both ends of the arc-shaped rod.

7. The portable steel bar bending device according to claim 6, characterized in that, Fixed pressure wheels are provided at both ends of the arc-shaped rod.

8. The portable steel bar bending device according to claim 1, characterized in that, The positioning disk is fixedly connected to a support rod that radially extends relative to the positioning disk.

9. The portable steel bar bending device according to claim 8, wherein, The arc-shaped rod, the connecting rod and the pressure rod are all located on one side of the positioning disk.

10. The portable steel bar bending device according to claim 9, wherein, The support rod and the pressure rod are respectively located on both sides of the positioning disk.

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