Steel bar bending wrench

Abstract

The utility model discloses a reinforcing steel bar bending wrench, which belongs to the technical field of building construction and is mainly used for bending reinforcing steel bars in a reinforcing steel bar binding process. The reinforcing steel bar bending wrench comprises a handheld portion and a bending portion, the handheld portion comprises a rod body, the bending portion is arranged at one end of the rod body and forms a T shape with the rod body, the bending portion comprises a clamping groove matched with a reinforcing steel bar in size, the section of the clamping groove is in an arc shape, and the opening direction of the clamping groove is perpendicular to the length direction of the rod body. The clamping groove is provided with a notch matched with the steel bar in size, and the notch is formed in the clamping groove in the length direction of the rod body. By adopting the reinforcing steel bar bending wrench, the bending direction of the reinforcing steel bar is limited through mutual matching of the clamping groove and the notch, and direction deviation of the reinforcing steel bar during bending is avoided; the rod body and the bending part are designed into a T-shaped structure, the lever principle is utilized, labor is saved, and the bending effect is good; the steel bar bending angle is controlled by controlling the rotating angle of the rod body, and the steel bar bending precision is guaranteed; and the device is simple to manufacture, low in cost and suitable for various construction scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a steel bar bending wrench. Background Art

[0002] In the process of building construction, reinforced concrete is often used, and reinforced concrete is a man-made material composed of cement, stone, steel bars, etc. In reinforced concrete, steel bars are a commonly used reinforcing material, and their main function is to enhance the tensile strength of concrete. Before pouring concrete, the steel bars are tied and the formwork is supported, that is, the steel bars are tied with wire to form the required structural shape, and then the formwork is covered on the outside of the steel skeleton. In the process of steel bar tying, in order to make the steel bars form the required shape, the steel bars often need to be bent, but the existing wrenches are difficult to adapt to the steel bars. Even if the jaws of the movable wrench are used to clamp the steel bars, there will be problems of slippage or damage to the surface of the steel bars during the bending process; if the steel bars are bent manually, it will consume a lot of human resources, and due to the high hardness of the steel bars themselves, the manual bending of steel bars is labor-intensive, the bending accuracy of the steel bars is low, and it takes a long time.

[0003] For example, the steel bar bending wrench provided in the patent with announcement number CN202725874U uses two fixed teeth located on the wrench body to place the steel bar to be bent into the slot formed by the fixed teeth, and then uses the wrench body to bend the steel bar. However, when bending the steel bars that have formed a mesh, especially the steel bars located at the intersection of the longitudinal and transverse directions, because when using the steel bar bending wrench to bend the steel bar, the wrench body is perpendicular to the plane where the steel bar to be bent is located, when the length of the wrench body is greater than the spacing between the steel bar to be bent and the surrounding steel bars, when the wrench body is rotated to bend the steel bar, it is restricted by the position of the surrounding steel bars and the steel bar cannot be bent into place, thereby reducing the bending accuracy of the steel bar; if the length of the wrench body is reduced, the force torque will be changed, increasing the labor intensity of the construction personnel. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a steel bar bending wrench, which is mainly used for bending steel bars in the process of steel bar binding. When bending steel bars that have formed a steel bar mesh, it will not be affected by the surrounding steel bars, so as to achieve the purpose of high steel bar bending accuracy and improved steel bar bending efficiency.

[0005] The utility model discloses a steel bar bending wrench, comprising a hand-held part and a bending part, the hand-held part comprises a rod body, the bending part is arranged at one end of the rod body, the bending part and the rod body form a T-shape, the bending part comprises a clamping groove adapted to the size of the steel bar, the cross section of the clamping groove is arc-shaped and the opening direction is perpendicular to the length direction of the rod body, the clamping groove is provided with a notch adapted to the size of the steel bar, and the notch is arranged on the clamping groove along the length direction of the rod body.

[0006] Furthermore, the bending portion is welded to one end of the rod body, and a force rod is provided at the end of the rod body away from the bending portion. The force rod is arranged perpendicular to the length direction of the rod body, and the connection point between the force rod and the rod body is located at the midpoint of the force rod. The force rod, the rod body and the bending portion form an "I" shape.

[0007] Furthermore, the bending portion is welded to one end of the rod body, and an end of the rod body away from the bending portion is sleeved with an anti-slip threaded sleeve, and the anti-slip threaded sleeve can slide along the length direction of the rod body.

[0008] Furthermore, a movable plate that can slide along the length direction of the slot and a fixing piece corresponding to the movable plate and used to lock the movable plate are provided in the slot, and the movable plates are two and respectively located on both sides of the notch.

[0009] As a preferred embodiment, the shape of the movable plate is consistent with the shape of the card slot.

[0010] Furthermore, the rod body is a steel pipe.

[0011] Furthermore, the rod body is a telescopic rod.

[0012] The beneficial effects of the utility model are as follows: by adopting the steel bar bending wrench, the bending direction of the steel bar is limited through the mutual cooperation of the clamping groove and the notch, so as to avoid the direction deviation of the steel bar when bending, and ensure the bending accuracy of the steel bar. At the same time, when the steel bar that has formed a steel mesh is bent, it will not be affected by the surrounding steel bars; the rod body and the bending part are designed to be a T-shaped structure, and the lever principle is used to reduce the force required by the construction personnel when driving the rod body to bend the steel bar, so as to achieve the purpose of labor saving and good bending effect; at the same time, the construction personnel can also control the bending angle of the steel bar by controlling the rotation angle of the rod body to ensure the bending accuracy of the steel bar; and the steel bar bending wrench is simple to manufacture, low in cost, and suitable for various construction scenes. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 : A schematic diagram of the structure of the steel bar bending wrench provided by the utility model;

[0014] Figure 2 : Another structural schematic diagram of the steel bar bending wrench provided by the utility model;

[0015] Figure 3 : A schematic diagram of the use of the steel bar bending wrench provided by the utility model;

[0016] Figure 4 : A schematic diagram of using the steel bar bending wrench provided by the utility model to bend steel bars.

[0017] Figure numerals: 1-handle portion; 11-rod body; 12-force application rod; 13-anti-slip threaded sleeve; 2-bending portion; 21-slot; 22-notch; 23-movable plate; 24-fixing piece; 3-transverse steel bar; 4-vertical steel bar; 5-iron wire. DETAILED DESCRIPTION

[0018] The utility model is further described below.

[0019] The utility model provides a steel bar bending wrench, which is mainly used for bending steel bars in the process of steel bar binding, such as Figure 1 As shown, it includes a hand-held portion 1 and a bending portion 2, the hand-held portion 1 includes a rod body 11, the bending portion 2 is arranged at one end of the rod body 11, the bending portion 2 and the rod body 11 form a T-shape, the bending portion 2 includes a slot 21 adapted to the size of the steel bar, the cross-section of the slot 21 is arc-shaped and the opening direction is perpendicular to the length direction of the rod body 11, the slot 21 is provided with a notch 22 adapted to the size of the steel bar, and the notch 22 is arranged on the slot 21 along the length direction of the rod body 11.

[0020] When using, Figure 3 , Figure 4As shown, the slot 21 of the bent portion 2 is matched with the transverse steel bar 3, and the vertical steel bar 4 is inserted into the notch 22, thereby limiting the bending direction of the vertical steel bar 4, avoiding the bending direction of the vertical steel bar 4 from being offset, and ensuring the accuracy of the steel bar bending. At this time, the opening of the slot 21 is facing the ground, and the rod body 11 is located in the opposite direction of the bending direction of the vertical steel bar 4, and the slot 21 located at the notch 22 close to the side of the rod body 11 is in contact with the vertical steel bar 4, and then the bending angle of the vertical steel bar 4 is determined according to the bending condition of the vertical steel bar 4. The construction personnel hold the rod body 11 and rotate the rod body 11 in the bending direction of the steel bar, thereby causing the vertical steel bar 4 located in the notch 22 to bend accordingly, until the vertical steel bar 4 is bent to the specified position, and then the rotation of the rod body 11 is stopped; if the steel bar needs to be bent, the slot 21 is matched with the vertical steel bar 4, and the transverse steel bar 3 is inserted into the notch 22. By using the steel bar bending wrench, the groove 21 and the notch 22 cooperate with each other to limit the bending direction of the steel bar, avoid the direction of the steel bar being offset when bending, ensure the accuracy of the steel bar bending, and at the same time, when bending the steel bar that has formed a steel mesh, it will not be affected by the surrounding steel bars; the rod body 11 and the bending part 2 are designed as a T-shaped structure, and the lever principle is used to reduce the force required by the construction personnel when driving the rod body 11 to bend the steel bar, so as to achieve the purpose of labor saving and good bending effect; at the same time, the construction personnel can also control the steel bar by controlling the rotation angle of the rod body 11 The bending angle ensures the bending accuracy of the steel bar; and the steel bar bending wrench is simple to make, and the required materials can be directly obtained from the construction site, such as the rod body 11 can directly use the steel pipes at the construction site; the slot 21 is cut from discarded steel pipes or cut steel pipe scraps, and it is only necessary to ensure that the slot 21 is arc-shaped and can be adapted to the steel bar, and then a notch 22 adapted to the size of the steel bar is cut in the center of the slot 21, and then the slot 21 and the rod body 11 are welded into an integrated structure to complete the production; it is simple to make and low in cost, and is suitable for various construction scenarios.

[0021] The connection between the bending portion 2 and the rod body 11 can be made in one piece or detachably connected. The detachable connection can be specifically connected by plugging or threading, so as to replace the slots 21 with notches 22 of different sizes to bend steel bars of different sizes. In order to ensure the connection strength between the bending portion 2 and the rod body 11, so that when the steel bar bending wrench is used, the connection between the bending portion 2 and the rod body 11 will not fail due to excessive force, the bending portion 2 is welded to one end of the rod body 11.

[0022] like Figure 2As shown, due to the different strengths of steel bars, different diameters of steel bars require different forces. In order to facilitate the construction workers to exert force, a force rod 12 is provided at one end of the rod body 11 away from the bending portion 2. The force rod 12 is arranged perpendicular to the length direction of the rod body 11. The connection point between the force rod 12 and the rod body 11 is located at the midpoint of the force rod 12. The force rod 12, the rod body 11, and the bending portion 2 form an "I" shape; the force rod 12, the rod body 11, and the bending portion 2 form an I-shape, and the connection point between the force rod 12 and the rod body 11 is the midpoint of the force rod 12. When the strength of the steel bar is too large and one person cannot bend the steel bar, it is convenient for two people to apply force from the left and right sides of the force rod 12 at the same time to drive the steel bar bending wrench to bend the steel bar to the specified position.

[0023] like Figure 2 As shown, in order to prevent the construction workers from slipping along the rod body 11 and making it inconvenient to exert force when holding the rod body 11 to drive the steel bar bending wrench to bend the steel bar, the bending portion 2 is welded to one end of the rod body 11, and the end of the rod body 11 away from the bending portion 2 is sleeved with an anti-slip threaded sleeve 13, and the anti-slip threaded sleeve 13 can slide along the length direction of the rod body 11; by providing the anti-slip threaded sleeve 13, the slipping phenomenon caused by sweating of the hands is effectively prevented, and the anti-slip threaded sleeve 13 can slide along the length direction of the rod body 11, so that the construction workers can adjust the position of the anti-slip threaded sleeve 13 according to the point where they need to exert force. After the position is adjusted appropriately, when the construction workers hold the anti-slip threaded sleeve 13 tightly to drive the steel bar bending wrench to work, the anti-slip threaded sleeve 13 is pressed against the rod body 11 due to the outside, and no slip will occur, and in the absence of external driving force, the anti-slip threaded sleeve 13 will not slide along the length direction of the rod body 11.

[0024] In order to facilitate the fixed connection between the bending portion 2 and the rod body 11, the steel bar bending wrench can be applied to steel bars of different sizes, such as Figure 2 As shown, a movable plate 23 which can slide along the length direction of the slot 21 and a fixing member 24 which is arranged corresponding to the movable plate 23 and is used to lock the movable plate 23 are provided in the slot 21. There are two movable plates 23 which are respectively located on both sides of the notch 22. The movable plates 23 can be slidably connected with the slot 21 through a slide rail. The movable plates 23 located on both sides of the notch 22 slide along the slot 21 to adjust the width of the notch 22. When the width of the notch 22 is adjusted to the corresponding size of the steel bar to be bent, the movable plate 23 is fixed by the fixing member 24. The fixing member 24 can use a fixing pin to limit the sliding of the movable plate 23. In this way, the connection strength between the bending portion 2 and the rod body 11 can be ensured while the width of the notch 22 can be adjusted to be suitable for bending steel bars of different sizes.

[0025] To ensure that the slot 21 after the movable plate 23 is installed can still fit the transverse steel bar 3 and the steel bar bending wrench can be used normally, the shape of the movable plate 23 is consistent with the shape of the slot 21 .

[0026] To save costs, the rod body 11 is a steel pipe, which can be directly used from the construction site as long as it is suitable for construction workers to grasp; to facilitate construction workers to adjust the length of the rod body 11 and thus achieve the purpose of adjusting the torque, the rod body 11 is a telescopic rod, which can specifically adopt the existing telescopic rod structure such as that described in CN220566378U and CN220185534U.

Claims

1. A steel bar bending wrench, characterized in that: The invention comprises a hand-held part (1) and a bent part (2), wherein the hand-held part (1) comprises a rod body (11), the bent part (2) is arranged at one end of the rod body (11), the bent part (2) and the rod body (11) form a T-shape, the bent part (2) comprises a slot (21) adapted to the size of a steel bar, the cross section of the slot (21) is in an arc shape and the opening direction is perpendicular to the length direction of the rod body (11), the slot (21) is provided with a notch (22) adapted to the size of the steel bar, and the notch (22) is arranged on the slot (21) along the length direction of the rod body (11).

2. A steel bar bending wrench as claimed in claim 1, characterized in that: The bent portion (2) is welded to one end of the rod body (11).

3. A steel bar bending wrench as claimed in claim 1, characterized in that: A force-applying rod (12) is provided at one end of the rod body (11) away from the curved portion (2); the force-applying rod (12) is arranged perpendicular to the length direction of the rod body (11); the connection point between the force-applying rod (12) and the rod body (11) is located at the midpoint of the force-applying rod (12); and the force-applying rod (12), the rod body (11) and the curved portion (2) form an "I" shape.

4. A steel bar bending wrench as claimed in claim 1, characterized in that: An end of the rod body (11) away from the bent portion (2) is sleeved with an anti-slip thread sleeve (13), and the anti-slip thread sleeve (13) can slide along the length direction of the rod body (11).

5. A steel bar bending wrench as claimed in claim 1, characterized in that: The slot (21) is provided with a movable plate (23) that can slide along the length direction of the slot (21) and a fixing member (24) that is arranged corresponding to the movable plate (23) and is used to lock the movable plate (23). The movable plates (23) are two and are respectively located on both sides of the notch (22).

6. A steel bar bending wrench as claimed in claim 5, characterized in that: The shape of the movable plate (23) is consistent with the shape of the card slot (21).

7. A steel bar bending wrench according to any one of claims 1 to 6, characterized in that: The rod body (11) is a steel pipe.

8. A steel bar bending wrench according to any one of claims 1 to 6, characterized in that: The rod body (11) is a telescopic rod.

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