On-site straightening device for second-stage concrete embedded steel bars

Abstract

The utility model relates to the technical field of water conservancy and hydropower engineering construction, and provides a second-stage concrete embedded steel bar on-site straightening device which comprises a main rod, two short rods fixedly connected with the top of the main rod and two secondary rods arranged on the same sides of the tail ends of the two short rods respectively. The two secondary rods are arranged in parallel at intervals, the main rod and the short rods form an F-shaped frame, and an openable lock buckle is further arranged at the bottom of the main rod. Steel bars can be straightened through the short rods, the secondary rods and the lock catches, straightening can be carried out at the positions where the steel bars are dense and the working space is limited, the influence of the space is small, and the device is simple in structure, convenient to use and capable of rapidly straightening the second-stage concrete embedded steel bars.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy and hydropower engineering construction technology, and in particular to a field straightening device for pre-embedded steel bars in secondary concrete. Background Technology

[0002] During the construction of water conservancy and hydropower projects, in order to ensure smooth construction access, it is often necessary to bend the pre-embedded steel bars in the second phase of concrete to make the road surface unobstructed. Before the second phase of concrete construction, the steel bars need to be straightened. Due to the special location of some pre-embedded steel bars and their dense distribution, the straightening operation space is limited, and it is impossible to use large equipment for straightening.

[0003] Therefore, there is an urgent need to develop a field straightening device for pre-embedded steel bars in secondary concrete to overcome the shortcomings of existing technologies. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a field straightening device for pre-embedded reinforcing bars in secondary concrete, thereby improving the quality of concrete pouring.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A field straightening device for pre-embedded steel bars in secondary concrete includes: a main rod, two short rods fixedly connected to the top of the main rod, and two secondary rods respectively located on the same side of the ends of the two short rods; the secondary rods are arranged in parallel and spaced apart, and the main rod and the short rods form an F-shaped frame.

[0007] Preferably, the bottom of the main rod is provided with a latch, the latch including: a connecting seat fixedly connected to the main rod, and a movable latch rotatably connected to the rear end of the connecting seat via a rotating shaft; the opposite surface of the movable latch and the connecting seat is arc-shaped, forming an openable and closable arc-shaped space between the movable latch and the connecting seat, the front end face of the movable latch is provided with a U-shaped groove, the front side of the connecting seat is provided with a protrusion, the left side of the protrusion is provided with a rectangular groove, the right side of the protrusion is provided with a hole communicating with the rectangular groove, a locking bolt is fitted inside the protrusion, the left side of the locking bolt is provided with a rectangular block, the rectangular block of the locking bolt is placed in the rectangular groove, the right side of the locking bolt is a screw, the screw is placed in the U-shaped groove of the front end face of the movable latch, and a nut is provided on the right side of the screw.

[0008] Preferably, the latch is connected to the main rod via a connecting block, with one side of the connecting block fixedly connected to the main rod and the other end fixedly connected to the connecting seat.

[0009] Preferably, the main rod is a φ25 threaded steel bar with a length of 1m, the short rod is a φ25 threaded steel bar with a length of 0.1m, and the secondary rod is a φ18 threaded steel bar with a length of 0.05m.

[0010] This utility model discloses a field straightening device for pre-embedded steel bars in secondary concrete, which has the following beneficial effects.

[0011] This utility model can straighten steel bars by using short rods, secondary rods, and locks respectively. It can straighten steel bars in places where the steel bars are relatively dense and the working space is limited. It is less affected by space. The device has a simple structure, is easy to use, and can quickly straighten steel bars embedded in secondary concrete. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a front view structural diagram of the present invention.

[0014] Figure 3 This is a side view of the structure of this utility model.

[0015] In the attached diagram: 1. Main rod; 2. Short rod; 3. Secondary rod; 4. Connecting block; 5. Lock; 51. Connecting seat; 52. Movable buckle; 53. Rotating shaft; 54. Locking bolt. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example

[0018] Reference Figures 1 to 3 A second-stage concrete pre-embedded rebar straightening device includes: a main rod 1, two short rods 2 fixedly connected to the top of the main rod 1, and secondary rods 3 respectively located on the same side of the ends of the two short rods 2; the secondary rods 3 are arranged in parallel and spaced apart, and the main rod 1 and the short rods 2 form an F-shaped frame. In use, when facing a row of rebars with a wide spacing, the short rods 2 can be easily placed between the rebars. In this case, the short rods 2 are used to clamp the rebar to be straightened. When facing a row of rebars with a narrow spacing, the short rods 2 are difficult to place conveniently between the rebars. In this case, the secondary rods 3 are placed between the rebars, with the main rod 1 and the short rods 2 on the side of the rebars. The secondary rods 3 are then used to clamp the rebar to be straightened. This device can be used in locations where the rebars are dense and the working space is limited, with minimal impact from space constraints.

[0019] Preferably, in this embodiment, the bottom of the main rod 1 is provided with a latch 5, which includes: a connecting seat 51 fixedly connected to the main rod 1, and a movable latch 52 rotatably connected to the rear end of the connecting seat 51 through a rotating shaft 53; the opposite surface of the movable latch 52 and the connecting seat 51 is arc-shaped, and an openable and closable arc-shaped space is formed between the movable latch 52 and the connecting seat 51; the front end face of the movable latch 52 is provided with a U-shaped groove; the front side of the connecting seat 51 is provided with a protrusion; the left side of the protrusion is provided with a rectangular groove; the right side of the protrusion is provided with a hole communicating with the rectangular groove; a locking bolt 54 is sleeved inside the protrusion; a rectangular block is provided on the left side of the locking bolt 54; the rectangular block of the locking bolt 54 is placed in the rectangular groove; the right side of the locking bolt 54 is a screw; the screw is placed in the U-shaped groove on the front end face of the movable latch 52; and a nut is provided on the right side of the screw. By attaching the locking buckle 5 to the rebar that needs to be straightened, the position of the rebar can be further straightened. Attaching the locking buckle 5 to the rebar allows for better control of the contact point between the straightening device and the rebar during straightening. Furthermore, the movable buckle 52 of the locking buckle 5 and the connecting seat 51 form an openable and closable arc-shaped space. During use, it is not necessary to push the rebar downwards to the straightening position; the movable buckle 52 can be opened directly, and the locking buckle 5 can be attached to the rebar from the side, making it convenient to use. The rebar can be straightened using the short rod 2, the secondary rod 3, and the locking buckle 5 respectively. This allows for straightening in locations with dense rebar and limited working space, with minimal impact from space constraints. The device has a simple structure, is easy to use, and can quickly straighten the rebar embedded in secondary concrete.

[0020] Preferably, in this embodiment, for ease of welding, the latch 5 is connected to the main rod 1 via a connecting block 4, with one side of the connecting block 4 welded to the main rod 1 and the other end welded to the connecting seat 51.

[0021] Preferably, in this embodiment, the main rod 1 is a φ25 threaded steel bar with a length of 1m, the short rod 2 is a φ25 threaded steel bar with a length of 0.1m, and the secondary rod 3 is a φ18 threaded steel bar with a length of 0.05m.

[0022] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Substitutions may include replacements for some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the scope of protection of this utility model.

Claims

1. A field straightening device for pre-embedded reinforcing bars in secondary concrete, characterized in that, include: The main rod (1), two short rods (2) fixedly connected to the top of the main rod (1), and two secondary rods (3) respectively located on the same side of the ends of the two short rods (2); the secondary rods (3) are arranged in parallel and spaced apart, and the main rod (1) and the short rods (2) form an F-shaped frame; The bottom of the main rod (1) is provided with a buckle (5), which includes: a connecting seat (51) fixedly connected to the main rod (1) and a movable buckle (52) rotatably connected to the rear end of the connecting seat (51) through a rotating shaft (53); the opposite face of the movable buckle (52) and the connecting seat (51) is arc-shaped, and an openable arc-shaped space is formed between the movable buckle (52) and the connecting seat (51). The front end face of the movable buckle (52) is provided with a U-shaped groove, the front side of the connecting seat (51) is provided with a protrusion, the left side of the protrusion is provided with a rectangular groove, the right side of the protrusion is provided with a hole communicating with the rectangular groove, a locking bolt (54) is provided inside the protrusion, the left side of the locking bolt (54) is provided with a rectangular block, the rectangular block of the locking bolt (54) is placed in the rectangular groove, the right side of the locking bolt (54) is a screw, the screw is placed in the U-shaped groove of the front end face of the movable buckle (52), and a nut is provided on the right side of the screw.

2. The on-site straightening device for pre-embedded reinforcing bars in secondary concrete as described in claim 1, characterized in that, The latch (5) is connected to the main rod (1) through the connecting block (4). One side of the connecting block (4) is fixedly connected to the main rod (1), and the other end is fixedly connected to the connecting seat (51).

3. The on-site straightening device for pre-embedded reinforcing bars in secondary concrete as described in claim 1, characterized in that, The main rod (1) is a φ25 threaded steel bar with a length of 1m, the short rod (2) is a φ25 threaded steel bar with a length of 0.1m, and the secondary rod (3) is a φ18 threaded steel bar with a length of 0.05m.

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