Hinge joint reinforcing bar straightening device

Abstract

The application discloses a hinge joint steel bar straightening device, which comprises a rod-shaped operating member and a driving body capable of being fixed at the end of the hinge joint steel bar. The rod-shaped operating member comprises a driving end and an operating end arranged oppositely. The driving body is provided with a pressing mechanism for pressing the hinge joint steel bar. The driving body is provided with a connecting structure corresponding to the driving end. During the operation of the rod-shaped operating member, the rod-shaped operating member and the driving body form at least two different operation angles through the connecting structure. The hinge joint steel bar straightening device provided by the application can have different operation angles between the rod-shaped operating member and the driving body through the connecting structure during the operation, so that the rod-shaped operating member and the driving body can be conveniently operated in the hinge joint with small space, the construction efficiency is improved, the force direction can be correspondingly adjusted, the hinge joint steel bar is protected, and the bending phenomenon of the hinge joint steel bar during the straightening process is effectively avoided.

Description

Technical Field

[0001] This invention relates to the field of bridge construction technology, and specifically to a device for straightening rebar in hinge joints. Background Technology

[0002] Prefabricated bridges represent a current trend in bridge construction. Hollow core slabs are a key component of the bridge superstructure. Multiple prefabricated hollow core slabs are transported to the piers and then joined together using hinged joint reinforcement and tongue-and-groove concrete. There are generally three types of hinged joint reinforcement for each slab: First, upper hinged joint reinforcement, placed on both sides of the top surface of the hollow core slab. During prefabrication, the slab is laid flat towards the center of its cross-section, and when joined together, it rotates 180° towards the adjacent slab. Second, lower hinged joint reinforcement, placed at the tongue-and-groove joint on both sides of the hollow core slab. During prefabrication, it is placed tightly against the tongue-and-groove joint, and when joined together, it rotates 90° towards the adjacent slab. Third, longitudinal reinforcement is placed along the longitudinal direction of the hollow core slab at the locations of the upper and lower hinged joint reinforcements. Among these three types of hinged joint reinforcement, the lower hinged joint reinforcement is the most difficult to install when joining multiple hollow core slabs together. This is because the tongue-and-groove joint for the lower hinged joint reinforcement is narrow, making manual operation labor-intensive and time-consuming.

[0003] For example, the utility model patent application with authorization announcement number CN209811091U, authorization announcement date of December 20, 2019, and titled "A Straightening Device for Reinforcing Bars in the Hinge Joint of a Slide-Type Precast Hollow Slab for Bridges," includes a base, an input shaft and a gear and rack box mounted on the base. The gear and rack box includes a housing with an opening at the lower end, a transmission gear, a vertically arranged rack, and an output shaft mounted in the housing via bearings and arranged parallel to the input shaft. The input shaft and output shaft are connected by a transmission mechanism. The transmission gear is fixedly mounted on the output shaft, and the middle part of the rack is provided with a meshing part for the transmission gear. The transmission gear has two ends of the rack that can slide up and down from the housing and base respectively, and the lower end is provided with an opening slot facing downwards. When straightening the lower hinge joint reinforcement, this patent application first moves the device to the interface position of two adjacent hollow slab beams by means of universal wheels. Then, by moving the base, the opening slot at the lower end of the rack is made to be engaged downwards on the rectangular reinforcement on the side wall of the hollow slab beam. Then, by cranking the handle, the transmission gear is driven to rotate through the chain drive. The transmission gear drives the rack downwards, thereby causing the rectangular reinforcement to open outwards, so as to achieve the purpose of straightening the rectangular reinforcement in the hinge joint of the hollow slab beam.

[0004] When straightening the lower hinged joint rebar using the aforementioned straightening device, the slot at the lower end of the rack is positioned downwards and locked onto the upper end of the rectangular rebar. The rack is driven vertically downwards by a transmission gear to apply pressure to the rebar. Initially, the lower hinged joint rebar is tightly pressed against the tongue and groove of the hollow slab beam. At this point, the angle between the lower hinged joint rebar and the vertical direction is very small. Applying a downward vertical force directly through the rack can easily cause the lower hinged joint rebar to bend. Furthermore, when the distance between the lower end of the rack and the tongue and groove of the hollow slab beam is inconsistent with the distance between the upper end of the hinged joint rebar and the tongue and groove of the hollow slab beam, the hinged joint rebar is also easily squeezed and bent. However, during the straightening process, the distance between the upper end of the hinged joint rebar and the tongue and groove of the hollow slab beam gradually changes. Therefore, the position of the rack needs to be constantly adjusted to ensure that the distance between the lower end of the rack and the tongue and groove of the hollow slab beam is consistent with the distance between the upper end of the hinged joint rebar and the tongue and groove of the hollow slab beam. This causes inconvenience to the operator and affects construction efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a straightening device for hinged steel bars to overcome the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A straightening device for hinged rebar includes a rod-shaped operating member, which includes a driving end and an operating end arranged opposite to each other, and a driving body that can be fixed to the end of the hinged rebar. The driving body is provided with a pressing mechanism for pressing the hinged rebar, and the driving body is provided with a connecting structure corresponding to the driving end. During the operation of the rod-shaped operating member, the rod-shaped operating member forms at least two different operating angles with the driving body through the connecting structure.

[0008] The aforementioned straightening device for hinged steel bars includes an arc-shaped pressing surface disposed on the driving body, the arc-shaped pressing surface being disposed along the length direction of the driving body.

[0009] In the aforementioned straightening device for hinged steel bars, a movable operating rod is provided inside the rod-shaped operating member, a fixed block is provided at the driving end of the rod-shaped operating member, the upper end of the movable operating rod extends from the upper end of the rod-shaped operating member to form an operating section, the lower end of the movable operating rod extends from the fixed block to form a positioning section, and a positioning screw hole corresponding to the positioning section is provided on the end face of the driving body.

[0010] The aforementioned straightening device for hinged steel bars includes two connecting rods, with a first rotating shaft and a second rotating shaft respectively provided at both ends of the connecting rods.

[0011] The aforementioned straightening device for hinged steel bars has a first shaft hole on the driving end for mounting the first rotating shaft, and a second shaft hole on the driving body for mounting the second rotating shaft.

[0012] The aforementioned straightening device for hinged steel bars includes a first limiting member and a second limiting member on the driving body, which can drive the connecting rod to rotate between the first limiting member and the second limiting member.

[0013] The above-mentioned straightening device for hinged steel bars includes a first limiting member comprising a positioning part disposed on the driving body, the positioning part being disposed corresponding to the driving end.

[0014] The aforementioned straightening device for hinged steel bars includes a limiting baffle disposed on the driving body, which blocks the rotational stroke of the connecting rod.

[0015] The aforementioned straightening device for hinged joint reinforcing bars also includes a locking component, which is disposed on the driving body and is used to fix the outer sleeve of the driving body onto the hinged joint reinforcing bar.

[0016] The aforementioned straightening device for hinged rebar includes a locking assembly comprising a first clamping member and a second clamping member disposed opposite to each other. The first clamping member and the second clamping member have a clamping state for clamping and locking the hinged rebar and an unlocked state for separating from the hinged rebar.

[0017] In the above technical solution, the present invention provides a straightening device for hinged joint rebar, including a rod-shaped operating member and a driving body that can be fixed to the end of the hinged joint rebar. The rod-shaped operating member includes a driving end and an operating end arranged opposite to each other. The driving body is provided with a connection structure corresponding to the driving end. Thus, when straightening the hinged joint rebar, the driving body is fixed to the hinged joint rebar, and the rod-shaped operating member applies a pushing or pulling force to the driving body, thereby causing the hinged joint rebar to rotate. During operation, the connection structure allows the rod-shaped operating member and the driving body to have different operating angles, enabling the rod-shaped operating member and the driving body to operate conveniently in the narrow space of the hinged joint, improving construction efficiency, and allowing for corresponding adjustment of the force direction to protect the hinged joint rebar and effectively prevent the bending of the hinged joint rebar during the straightening process. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1This is a schematic diagram of the structure of the hinged rebar straightening device provided in an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the rod-shaped operating member provided in an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the rod-shaped operating member in a first operating state according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the rod-shaped operating member in a second operating state according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the rod-shaped operating member in a third operating state according to an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the locking component in a clamping state according to another embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the locking component in an unlocked state according to another embodiment of the present invention;

[0026] Figure 8 A perspective view of a driving body provided in another embodiment of the present invention;

[0027] Figure 9 This is a schematic diagram of the installation of the driver provided in another embodiment of the present invention;

[0028] Figure 10 A bottom view of the drive body provided in another embodiment of the present invention;

[0029] Figure 11 This is one of the structural schematic diagrams of the pressure-reducing mechanism provided in another embodiment of the present invention;

[0030] Figure 12 This is a second schematic diagram of the structure of the pressing mechanism provided in another embodiment of the present invention;

[0031] Figure 13 This is a schematic diagram of the structure of the first wedge-shaped pressing block provided in another embodiment of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Rod-shaped operating component; 1.1 Movable operating rod; 1.2 Fixed block; 1.3 Positioning section; 1.4 Operating section; 1.5 First shaft hole; 2. Driving body; 2.1 Positioning screw hole; 2.2 Second shaft hole; 2.3 First limiting component; 2.3.1 Positioning part; 2.4 Second limiting component; 2.4.1 Limiting baffle; 2.5 Rectangular opening; 2.6 Motion channel; 2.7 First sliding groove; 2.8 Second sliding groove; 3. Connecting structure; 3.1 Connecting rod; 3.2 First rotating shaft; 3.3 Second rotating shaft; 4. Pressing mechanism; 4.1 Pressing drive block; 4.2 Pressing mechanism 4.3 Moving block; 4.4 Arc-shaped pressing surface; 4.5 Side plate; 4.6 Driving inclined surface; 4.7 First wedge-shaped pressing block; 4.8 Second wedge-shaped pressing block; 4.9 Pressing inclined surface; 5. Elastic component; 5.1 Elastic blocking component; 5.2 Elastic telescopic component; 5.3 Telescopic rod; 5.4 Second sliding block; 5.5 Spring component; 6. Locking component; 6.1 First clamping component; 6.2 Second clamping component; 6.3 First sliding block; 6.4 Arc-shaped clamping surface; 6.5 Strip-shaped protrusion structure; 6.6 Locking through hole; 6.7 Elastic component; 6.8 Locking component; 6.9 Unlocking component; 7. Hinge joint reinforcement. Detailed Implementation

[0034] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0035] like Figure 1-13 As shown, this embodiment of the invention provides a straightening device for hinged steel bars, including a rod-shaped operating member 1 and a driving body 2 that can be fixed to the end of the hinged steel bar 7. The rod-shaped operating member 1 includes a driving end and an operating end arranged opposite to each other. The driving body 2 is provided with a pressing mechanism 4 for pressing the hinged steel bar 7. The driving body 2 is provided with a connecting structure 3 corresponding to the driving end. During the operation of the rod-shaped operating member 1, the rod-shaped operating member 1 forms at least two different operating angles with the driving body 2 through the connecting structure 3.

[0036] Specifically, the rod-shaped operating member 1 and the driving body 2 form a straightening mechanism for straightening the hinged joint steel bar 7. The driving body 2 is used to fix the hinged joint steel bar 7 in place. The rod-shaped operating member 1 is used to apply a pushing or pulling force to the driving body 2, thereby causing the hinged joint steel bar 7 to rotate towards the adjacent hollow slab beam. When the hinged joint steel bar 7 rotates 90° and is in a horizontal state, the driving body 2 is removed from the hinged joint steel bar 7, and the straightening of the next hinged joint steel bar 7 continues.

[0037] In this embodiment, the driving end and the operating end are the two ends of the rod-shaped operating member 1 along its length. The rod-shaped operating member 1 can be a rod or a tube. An operating structure for the operator to operate can also be provided at the operating end of the rod-shaped operating member 1, such as an operating crossbar that is perpendicular to the rod-shaped operating member 1. In this way, when in use, the operator can apply force to the rod-shaped operating member 1 through the operating crossbar.

[0038] In this embodiment, the driving body 2 has a cuboid structure. For ease of description, the surface of the driving body 2 that contacts the hinged steel bar 7 is called the bottom surface, the side surface opposite the bottom surface is called the top surface, and the surfaces connecting the top surface and the bottom surface are called the side surface and the cross surface, respectively. According to the lever principle, when straightening the hinged steel bar 7, when the rod-shaped operating member 1 is parallel to the axial direction of the hinged steel bar 7, a force perpendicular to the axial direction of the hinged steel bar 7 is applied to the rod-shaped operating member 1. This is the most effort-saving state, and this state of the rod-shaped operating member 1 is called the first operating state. This state is suitable for... In the initial stage, the hinged joint reinforcement 7 is operated and driven, causing the hinged joint reinforcement 7 to rotate from a position tightly attached to the tongue and groove of the hollow slab beam to a state of gradually separating from the tongue and groove of the hollow slab beam. However, due to the small gap between the hinge joints of the two hollow slab beams, the rod-shaped operating member 1 in the first operating state can only drive the hinged joint reinforcement 7 to rotate a small angle. Subsequently, the rod-shaped operating member 1 will be blocked by the adjacent hollow beam slab. Therefore, it is necessary to adjust the operating angle of the rod-shaped operating member 1 to satisfy the operation and driving of the hinged joint reinforcement 7, so that the hinged joint reinforcement 7 gradually rotates to a horizontal state.

[0039] In this embodiment, the pressing mechanism 4 is a structure in which the driving body 2 applies force to the hinged steel bar 7. The pressing mechanism 4 can be an arc-shaped pressing groove on the bottom surface of the driving body 2, or it can be other structures inside the driving body 2. The driving body 2 is provided with a connecting structure 3. The connecting structure 3 not only realizes the connection between the driving body 2 and the rod-shaped operating member 1, but also allows the operating angle of the rod-shaped operating member 1 to be adjusted accordingly. Depending on the specific structure of the connecting structure 3, the connection method between the rod-shaped operating member 1 and the driving body 2, as well as the operating angle adjustment method, are different. For example, the connecting structure 3 is a connecting groove on the driving body 2, and the connecting groove is correspondingly set with the driving end of the rod-shaped operating member 1. The driving end can be correspondingly embedded into the connecting groove to realize the snap-fit ​​between the rod-shaped operating member 1 and the driving body 2. The number of connecting grooves is set as needed, and the direction of each connecting groove is different. The driving end of the rod-shaped operating member 1 is embedded and snapped into the connecting grooves in different directions, and the operating angle of the rod-shaped operating member 1 is also correspondingly different. Preferably, the driving body 2 has at least two connecting grooves, one of which is located on the end face of the driving body 2 and the other on the top face of the driving body 2. When the driving end of the rod-shaped operating member 1 is embedded in the connecting groove fixed on the end face of the driving body 2, the axial direction of the rod-shaped operating member 1 and the hinged steel bar 7 is parallel, which is the first operating state. This is suitable for operating and driving the hinged steel bar 7 in the initial stage and requires the least effort. When the driving end of the rod-shaped operating member 1 is embedded in the connecting groove fixed on the top face of the driving body 2, the rod-shaped operating member 1 is perpendicular to the driving body 2, that is, the axial direction of the rod-shaped operating member 1 is perpendicular to the axial direction of the hinged steel bar 7, which is the second operating state. At this time, force is applied to the rod-shaped operating member 1, so that the hinged steel bar 7 is subjected to a force perpendicular to the axial direction, thereby causing the hinged steel bar 7 to rotate. The rod-shaped operating member 1 operates the hinged steel bar 7 in the first and second operating states, which can prevent the hinged steel bar 7 from bending. At the same time, the connecting structure 3 can also be other structures, such as rotating connectors.

[0040] This invention provides a device for straightening hinged joint rebar, including a rod-shaped operating component 1 and a driving body 2 that can be fixed to the end of the hinged joint rebar 7. The rod-shaped operating component 1 includes a driving end and an operating end arranged opposite to each other. The driving body 2 is provided with a connecting structure 3 corresponding to the driving end. When straightening the hinged joint rebar 7, the driving body 2 is fixedly attached to the hinged joint rebar 7. The rod-shaped operating component 1 applies a pushing or pulling force to the driving body 2, thereby causing the hinged joint rebar 7 to rotate. During operation, the connecting structure 3 allows the rod-shaped operating component 1 and the driving body 2 to have different operating angles, enabling the rod-shaped operating component 1 and the driving body 2 to operate conveniently in the narrow space of the hinged joint, improving construction efficiency. It also allows for adjustment of the force direction to protect the hinged joint rebar 7 and effectively prevent the hinged joint rebar 7 from bending during the straightening process.

[0041] In the embodiments provided by the present invention, optionally, the pressing mechanism 4 includes an arc-shaped pressing surface 4.3 disposed on the driving body 2. The arc-shaped pressing surface 4.3 is disposed along the length direction of the driving body 2, and the curvature of the arc-shaped pressing surface 4.3 is set according to the specifications of the hinge joint steel bar 7. At the same time, the driving body 2 and the pressing mechanism 4 are also set according to the hinge joint and the hinge joint steel bar 7, which can be used for operation within the hinge joint. When the hinge joint steel bar 7 is straightened by the rod-shaped operating member 1 and the driving body 2, the driving body 2 contacts the hinge joint steel bar 7 through the arc-shaped pressing surface 4.3, thereby increasing the contact area between the driving body 2 and the hinge joint steel bar 7, improving the protection of the hinge joint steel bar 7, and preventing the hinge joint steel bar 7 from bending.

[0042] In a preferred embodiment of the present invention, a movable operating rod 1.1 is provided inside the rod-shaped operating member 1. A fixed block 1.2 is provided at the driving end of the rod-shaped operating member 1. The lower end of the movable operating rod 1.1 extends from the fixed block 1.2 to form a positioning section 1.3, and the upper end of the movable operating rod 1.1 extends from the upper end of the rod-shaped operating member 1 to form an operating section 1.4. The movable operating rod 1.1 is coaxially arranged with the rod-shaped operating member 1. An active channel for the movable operating rod 1.1 to move up and down is formed inside the movable operating rod 1.1. The fixed block 1.2 is fixedly arranged. The driving end of the rod-shaped operating member 1 is closed off from the movable channel. The fixed block 1.2 is provided with a lower screw hole coaxial with the movable channel. The operating crossbar is fixed on the operating end of the rod-shaped operating member 1. The operating crossbar is also provided with an upper screw hole coaxial with the movable channel. The movable operating rod 1.1 is provided with a threaded part, which is correspondingly set with the upper screw hole and the lower screw hole. By rotating the operating section 1.4 of the movable operating rod 1.1, the movable operating rod 1.1 is rotated accordingly, thereby adjusting the length of the positioning section 1.3 of the movable operating rod 1.1.

[0043] In the preferred embodiment of the present invention, a positioning screw hole 2.1 is provided on the end face of the driving body 2, and the positioning segment 1.3 is rotatably fixed in the positioning screw hole 2.1. Thus, in the initial state of use, the positioning segment 1.3 can be rotatably fixed in the positioning screw hole 2.1. At this time, the rod-shaped operating member 1 is fixedly connected to the driving body 2 through the movable operating rod 1.1, and the rod-shaped operating member 1 is parallel to the axial direction of the arc-shaped pressing surface 4.3. Then, the driving body 2 is sleeved and constrained on the hinged steel bar. This process can directly operate the driving body 2 to realize the connection between the driving body 2 and the hinged steel bar, or it can be achieved by the rod-shaped operating member 1.1. The actuator 1 operates the drive body 2 to connect the drive body 2 with the hinged steel bar. At this time, the rod-shaped operating member 1 is parallel to the axial direction of the hinged steel bar, that is, the rod-shaped operating member 1 is in the first operating state. At this time, it is suitable for operating and driving the hinged steel bar 7 in the initial stage and is the least labor-intensive. As the rod-shaped operating member 1 is operated until it is blocked by the adjacent hollow beam plate, the movable operating rod 1.1 is rotated in the opposite direction, so that the positioning section 1.3 of the movable operating rod 1.1 is separated from the positioning screw hole 2.1. Then, the operating angle of the rod-shaped operating member 1 can be further adjusted through the connecting structure 3.

[0044] In a preferred embodiment of the present invention, the connecting structure 3 includes two connecting rods 3.1. A first rotating shaft 3.2 and a second rotating shaft 3.3 are respectively provided at both ends of the connecting rods 3.1. A first shaft hole 1.5 for mounting the first rotating shaft 3.2 is provided on the driving end, and a second shaft hole 2.2 for mounting the second rotating shaft 3.3 is provided on the driving body 2. The length of the connecting rods 3.1 meets the requirements for adjusting the operating angle of the rod-shaped operating member 1. There are two first shaft holes 1.5 and two second shaft holes 2.2. Thus, the two connecting rods 3.1 allow the rod-shaped operating member 1 to rotate relative to the driving body 2, enabling adjustment of the operating angle of the rod-shaped operating member.

[0045] In the preferred embodiment of the present invention, the driving body 2 is provided with a first limiting member 2.3 and a second limiting member 2.4. The driving body 2 can drive the connecting rod 3.1 to rotate between the first limiting member 2.3 and the second limiting member 2.4. The movement of the connecting rod 3.1 can be restricted by the first limiting member 2.3 and the second limiting member 2.4. When the connecting rod 3.1 rotates to the position with the first limiting member 2.3 or the second limiting member 2.4, a restrictive position is formed between the first limiting member 2.3 or the second limiting member 2.4 and the driving body 2, thereby facilitating the operation of the rod-shaped operating member 1 and the driving body 2. Specifically, when the driving body 2 rotates... When the rod-shaped operating member 1 moves to the position corresponding to the first limiting member 2.3, it directly applies a driving force to the driving body 2 or the pressing mechanism 4 to straighten the hinged joint steel bar 7. For ease of description, this state of the rod-shaped operating member 1 is referred to as the second operating state. When the driving body 2 rotates to the position corresponding to the second limiting member 2.4, the rod-shaped operating member 1 applies a pulling force to the driving body 2 through the connecting rod 3.1 to straighten the hinged joint steel bar 7. This state of the rod-shaped operating member 1 is referred to as the third operating state. The first, second, and third operating states of the rod-shaped operating member 1 correspond to different stages in which the hinged joint steel bar 7 is straightened, that is, as the hinged joint... Different rotation angles of the driven reinforcing bar 7 correspond to different operating states of the rod-shaped operating member 1, thus facilitating operation. It should be noted that when straightening a hinged reinforcing bar 7, the rod-shaped operating member 1 can be in two or three of these states sequentially as the reinforcing bar 7 rotates 90° until it reaches a horizontal position. For example, when straightening a hinged reinforcing bar 7, the rod-shaped operating member 1 initially operates in the first state, where the reinforcing bar 7 is driven to rotate 30°. It is then adjusted to the second operating state until the reinforcing bar 7 rotates to a horizontal position; that is, the reinforcing bar 7 is driven to rotate 60° in the second operating state. At this time, the rod-shaped operating component 1 is adjusted to two operating states in sequence. For example, when straightening a certain hinged steel bar 7, the rod-shaped operating component 1 is initially in the first operating state, and the hinged steel bar 7 is driven to rotate 20° in the first operating state. Then it is adjusted to the third operating state, and the hinged steel bar 7 is driven to rotate 30° in the third operating state. Finally, the rod-shaped operating component 1 is adjusted to the second operating state, and the hinged steel bar 7 is driven to rotate 40° to a horizontal state in the second operating state. During this operation process, the rod-shaped operating component 1 is adjusted to three operating states in sequence. The rod-shaped operating component 1 can also have other operating states, which will not be described in detail.

[0046] In the embodiments provided by the present invention, preferably, when the rod-shaped operating member 1 is in the first operating state and the second operating state, the rod-shaped operating member 1 applies a force perpendicular to its axis to the hinged joint reinforcing bar 7. This achieves both labor saving and avoids bending of the reinforcing bar. When the rod-shaped operating member 1 is in the third operating state, the connecting rod 3.1 and the driving body 2 can be perpendicular or not perpendicular. At this time, the rod-shaped operating member 1 applies a pushing force to the connecting rod 3.1, and the connecting rod 3.1 transmits the force to the driving body 2, thereby forming a pulling force on the driving body 2 and the hinged joint reinforcing bar 7. The first operating state is suitable for operating and driving the hinged joint reinforcing bar 7 in the initial stage. The second operating state is suitable for operating the hinged joint reinforcing bar 7 when the rotation angle of the hinged joint reinforcing bar 7 is large. The third operating state satisfies the operation of the rod-shaped operating member 1 in the hinge. When straightening the hinged joint reinforcing bar 7 through the rod-shaped operating member 1 and the driving body 2, the rod-shaped operating member 1 commonly has three modes, one of which is... The operating modes are as follows: the rod-shaped operating member 1 is first in the first operating state and then in the second operating state; the second operating mode is: the rod-shaped operating member 1 is first in the third operating state and then in the second operating state; the third operating mode is: the rod-shaped operating member 1 is in the first operating state, the third operating state and the second operating state in sequence. Through the three operating modes and three different operating states, the rod-shaped operating member 1 can easily and effortlessly straighten the hinged joint steel bar 7. However, it should be noted that the second operating state and the third operating state are two preferred operating angles of the rod-shaped operating member 1, but the rod-shaped operating member 1 is not limited to the first operating state, the second operating state and the third operating state. Theoretically, any position of the connecting rod 3.1 in its rotation stroke can correspond to an operating state of the rod-shaped operating member 1, thus satisfying the straightening operation of the hinged joint steel bar 7 by the rod-shaped operating member 1 in a confined space.

[0047] In the embodiments provided by the present invention, optionally, the first limiting member 2.3 includes a positioning part 2.3.1 disposed on the driving body 2. The positioning part 2.3.1 is correspondingly disposed on the driving end. The positioning part 2.3.1 is a positioning hole disposed on the driving body 2. The positioning hole is correspondingly disposed on the positioning section 1.3 of the movable operating rod 1.1, and the depth of the positioning hole is greater than the length of the positioning section 1.3. Thus, when the rod-shaped operating member 1 rotates to the position corresponding to the first limiting member 2.3 through the connecting rod 3.1, the positioning section 1.3 of the movable operating rod 1.1 can be inserted into the positioning hole, and the fixing block 1.2 on the rod-shaped operating member 1 directly contacts the driving body 2. Thus, the rod-shaped operating member 1 is kept in the second operating state through the positioning hole and the movable operating rod 1.1. In this state, the rod-shaped operating member 1 directly applies a pushing force to the driving body 2 through the fixing block 1.2, and the driving body 2 pushes the hinged steel bar 7 to rotate to achieve straightening.

[0048] In the embodiments provided by the present invention, optionally, the second limiting member 2.4 includes a limiting baffle 2.4.1 disposed on the driving body 2. The limiting baffle 2.4.1 blocks the rotation stroke of the connecting rod 3.1. There can be one or two limiting baffles 2.4.1. The limiting baffles 2.4.1 are disposed on the side of the driving body 2. When the rod-shaped operating member 1 drives the connecting rod 3.1 to rotate to the position abutting against the limiting baffle 2.4.1, the limiting baffle 2.4.1 blocks the connecting rod 3.1 so that the connecting rod 3.1 cannot continue to rotate, thereby keeping the rod-shaped operating member 1 in the third operating state. At this time, the rod-shaped operating member 1 applies a pushing force to the connecting rod 3.1, and the connecting rod 3.1 transmits the force to the driving body 2, thereby forming a pulling force on the driving body 2 and the hinged steel bar 7 so that the hinged steel bar 7 rotates.

[0049] In another preferred embodiment of the present invention, a locking component 6 is further included, which is disposed on the driving body 2 for locking the driving body 2 onto the hinged joint reinforcement 7. The locking component 6 includes a first clamping member 6.1 and a second clamping member 6.2 disposed opposite to each other. The first clamping member 6.1 and the second clamping member 6.2 have a clamping state for clamping the hinged joint reinforcement 7 and an unlocking state for being separated from the hinged joint reinforcement 7. When the first clamping member 6.1 and the second clamping member 6.2 are in the clamping state, the locking structure formed by the combination of the first clamping member 6.1 and the second clamping member 6.2 is sleeved on the hinged joint reinforcement 7. At this time, the first clamping member 6.1 and the second clamping member 6.2 can move along the axial direction of the hinged joint reinforcement 7, but the first clamping member 6.1 and the second clamping member 6.2 will not fall off the hinged joint reinforcement 7. When the locking component 6 is in the unlocking state... In the locked state, the distance between the first clamping member 6.1 and the second clamping member 6.2 gradually increases, allowing the first clamping member 6.1 and the second clamping member 6.2 to be directly removed from the hinged joint steel bar 7. In use, the first clamping member 6.1 and the second clamping member 6.2 can be adjusted to the clamping state first, and then the rod-shaped operating member 1 can be placed in the first operating state. The driving body 2 and the locking assembly 6 can be aligned and installed on the hinged joint steel bar 7 using the rod-shaped operating member 1. The hinged joint steel bar 7 can then be straightened. After the operation is completed, the first clamping member 6.1 and the second clamping member 6.2 can be operated to switch from the clamping state to the unlocked state. The driving body 2, the first clamping member 6.1, and the second clamping member 6.2 can then be removed from the hinged joint steel bar 7 using the rod-shaped operating member 1.

[0050] In another embodiment of the present invention, the locking component 6 further includes a locking element 6.8 and an elastic element 6.7. The elastic element 6.7 is disposed between the first clamping element 6.1 and the second clamping element 6.2. The first clamping element 6.1 and the second clamping element 6.2 have the same structure. Both the first clamping element 6.1 and the second clamping element 6.2 include an arc-shaped clamping surface 6.4. The arc-shaped clamping surface 6.4 is provided with strip-shaped protrusions 6.5. There are multiple strip-shaped protrusions 6.5, which are arranged sequentially at intervals along the circumference of the arc-shaped clamping surface 6.4. Each strip-shaped protrusion 6.5 is arranged along the length direction of the driving body 2. Both the first clamping element 6.1 and the second clamping element 6.2 are provided with a first sliding block 6.3. The driving body 2 is provided with a first sliding block 6.3. The first sliding groove 2.7 is slidable, and the elastic element 6.7 is installed in the first sliding groove 2.7. The elastic element 6.7 can be a spring. The two ends of the elastic element 6.7 are fixedly connected to the first sliding block 6.3 on the first clamping member 6.1 and the first sliding block 6.3 on the second clamping member 6.2, respectively. A cylindrical limiting through hole is formed between the arc-shaped clamping surface 6.4 on the first clamping member 6.1 and the arc-shaped clamping surface 6.4 on the second clamping member 6.2. At the same time, locking through holes 6.6 are provided on both the first clamping member 6.1 and the second clamping member 6.2. There is at least one set of locking through holes 6.6, and there can be two or more sets. The locking element 6.8 can be embedded into the locking through hole 6.6 so that the first clamping member 6.1 and the second clamping member 6.2 are kept in the clamping state.

[0051] In another embodiment of the present invention, preferably, when the locking component 6 is in use, the distance between the first clamping member 6.1 and the second clamping member 6.2 is first adjusted, and the first sliding block 6.3 on the first clamping member 6.1 and the second clamping member 6.2 moves along the first sliding groove 2.7. When the distance between the first clamping member 6.1 and the second clamping member 6.2 decreases so that the size of the cylindrical limiting through hole corresponds to the size of the hinged joint steel bar 7 (the size of the cylindrical limiting through hole is slightly larger than the radial dimension of the hinged joint steel bar 7), the locking member 6.8 is sequentially inserted into the locking through hole 6.6 of the first clamping member 6.1 and the second clamping member 6.2, thereby locking the first clamping member 6.1 and the second clamping member 6.2, so that the first clamping member 6.1 and the second clamping member 6.2 are held in the clamping state. At this time, the elastic member 6.7 is in the compressed state, and the driving body 2 and the locking component are connected by the rod-shaped operating member 1. Part 6 is aligned and installed on the hinged joint reinforcement 7. Then, the hinged joint reinforcement 7 is straightened. Since multiple strip-shaped protrusions 6.5 are provided on the arc-shaped clamping surface 6.4, the strip-shaped protrusions 6.5 are parallel to the axial direction of the hinged joint reinforcement 7. This can prevent circumferential rotation between the first clamping part 6.1 and the second clamping part 6.2 and the hinged joint reinforcement 7. After the operation, the locking part 6.8 is operated by a tool to make the locking part 6.8 leave the locking through hole 6.6. Under the action of the elastic part 6.7, the two first sliding blocks 6.3 move in a gradually away direction, so that the first clamping part 6.1 and the second clamping part 6.2 gradually separate until the elastic part 6.7 returns to the initial state. At this time, the first clamping part 6.1 and the second clamping part 6.2 are in the unlocked state. The driving body 2, the first clamping part 6.1 and the second clamping part 6.2 can be removed from the hinged joint reinforcement 7 by the rod-shaped operating part 1.

[0052] In another embodiment of the present invention, preferably, the pressing mechanism 4 includes a pressing drive block 4.1 and a pressing motion block 4.2 disposed on the pressing drive block 4.1. The pressing drive block 4.1 and the pressing motion block 4.2 are an integral structure. The positioning part 2.3.1 includes a positioning hole disposed on the pressing motion block 4.2. The positioning hole is correspondingly disposed to the positioning section 1.3 of the movable operating rod 1.1, and the depth of the positioning hole is greater than the length of the positioning section 1.3. The pressing motion block 4.2 is correspondingly disposed to the fixing block 1.2 of the driving end of the rod-shaped operating member 1. The bottom of the pressing drive block 4.1 is provided with an arc-shaped pressing surface 4.3. The arc-shaped pressing surface 4.3 is correspondingly disposed to the size of the hinge joint steel bar 7. The arc-shaped pressing surface 4.3 can fit and be stuck on the hinge joint steel bar 7.

[0053] In another embodiment of the present invention, when the pressing moving block 4.2 is not pressed by the fixing block 1.2 and the rod-shaped operating member 1, the pressing moving block 4.2 is in the initial position. At this time, the arc-shaped pressing surface 4.3 is separated from the hinge joint steel bar 7. When the rod-shaped operating member 1 is rotated to the second operating state through the connecting rod 3.1, the positioning section 1.3 on the movable operating rod 1.1 is first embedded into the positioning hole on the pressing moving block 4.2, so that the rod-shaped operating member 1 is kept in the second operating state. Then the fixing block 1.2 on the rod-shaped operating member 1 presses against the pressing moving block 4.2. When the pressing moving block 4.2 is driven to the working position, that is, the arc-shaped pressing surface 4.3 on the pressing driving block 4.1 presses against the hinge joint steel bar 7. Then the operator continues to apply a pushing force to the rod-shaped operating member 1. The pushing force is directly transmitted to the hinge joint steel bar 7, so that the hinge joint steel bar 7 gradually rotates until it is straightened.

[0054] In another embodiment of the present invention, preferably, the bottom of the driving body 2 is provided with a rectangular opening 2.5, and the driving body 2 is provided with a motion channel 2.6 communicating with the rectangular opening 2.5. The pressing motion block 4.2 is slidably connected in the motion channel 2.6, and the pressing driving block 4.1 is movably connected in the rectangular opening 2.5. The rectangular opening 2.5 is provided along the length direction of the driving body 2, and the motion channel 2.6 penetrates the driving body 2. In the initial position, the pressing motion block 4.2 extends out from the motion channel 2.6. When the pressing motion block 4.2 is driven to move from the initial position to the working position, the pressing motion block 4.2 moves along the motion channel 2.6, and the pressing driving block 4.1 moves synchronously in the rectangular opening 2.5.

[0055] In another embodiment of the present invention, preferably, the pressing mechanism 4 further includes a first wedge-shaped pressing block 4.6 and a second wedge-shaped pressing block 4.7 disposed on both sides of the pressing drive block 4.1. Driving inclined surfaces 4.5 are disposed on opposite sides of the pressing drive block 4.1. A side plate 4.4 is disposed on the pressing drive block 4.1 near the pressing moving block 4.2, and the side plate 4.4 is correspondingly connected to the driving inclined surface 4.5. The pressing drive block 4.1, the pressing moving block 4.2, and the side plate 4.4 are an integral structure. The first wedge-shaped pressing block 4.6 and the second wedge-shaped pressing block 4.7 are provided with [facilities related to the driving mechanism]. The moving inclined plane 4.5 is parallel to the pressing inclined plane 4.8. The bottom of the first wedge-shaped pressing block 4.6 and the second wedge-shaped pressing block 4.7 is provided with an arc-shaped pressing surface 4.3. The arc-shaped pressing surface 4.3 may also be provided with strip-shaped protrusions 6.5. The pressing inclined plane 4.8 and the driving inclined plane 4.5 form a wedge-shaped transmission structure, so that during the process of the pressing moving block 4.2 moving from the initial position to the working position, it can correspondingly drive the first wedge-shaped pressing block 4.6 and the second wedge-shaped pressing block 4.7 to move. When the pressing moving block 4.2 is in the initial position, it presses against the driving block 4.1 and the first wedge-shaped pressing block 4.7. The arc-shaped pressing surfaces 4.3 of the pressing block 4.6 and the second wedge-shaped pressing block 4.7 are separated from the hinge joint reinforcement 7. When the pressing moving block 4.2 is in the working position, the pressing driving block 4.1 and the arc-shaped pressing surfaces 4.3 of the first wedge-shaped pressing block 4.6 and the second wedge-shaped pressing block 4.7 together press against the hinge joint reinforcement 7. At this time, the side plates 4.4 on both sides of the pressing driving block 4.1 press against the first wedge-shaped pressing block 4.6 and the second wedge-shaped pressing block 4.7 respectively, and the contact length between the arc-shaped pressing surface 4.3 and the hinge joint reinforcement 7 is greater than the length of the rectangular opening 2.5. For example, the length of the rectangular opening 2.5 is 8cm. When the pressing block 4.2 is in the working position, the first wedge-shaped pressing block 4.6 extends from one side of the rectangular opening 2.5 (the extended part is 2cm). At this time, the length of the arc-shaped pressing surface 4.3 on the first wedge-shaped pressing block 4.6, the pressing drive block 4.1, and the second wedge-shaped pressing block 4.7 is 10cm. In this way, without increasing the size of the driving body 2, the force-bearing surface and force-bearing length of the pressing mechanism 4 and the hinged steel bar 7 are increased, which increases the protection of the hinged steel bar 7 and prevents the hinged steel bar 7 from bending during the straightening process.

[0056] In another embodiment of the present invention, preferably, it further includes an elastic component 5, which is disposed between the driving body 2 and the first wedge-shaped pressing block 4.6 and the second wedge-shaped pressing block 4.7, for driving the pressing driving block 4.1 from the working state to the initial state. The elastic component 5 includes an elastic blocking member 5.1 and an elastic telescopic member 5.2. The first wedge-shaped pressing block 4.6 and the second wedge-shaped pressing block 4.7 receive the drive of the pressing driving block 4.1 and have lateral movement along the length direction of the rectangular opening 2.5 and vertical movement along the axis direction of the movement channel 2.6. The lateral movement and the vertical movement are perpendicular. The elastic blocking member 5.1 blocks the movement stroke of the lateral movement, and the elastic telescopic member 5.2... Set along the vertical movement stroke; during the process of the pressing block 4.2 being driven from the initial position to the working position by the rod-shaped operating member 1, in the initial stage, the driving inclined surface 4.5 on the pressing driving block 4.1 squeezes the pressing inclined surface 4.8 of the first wedge-shaped pressing block 4.6 and the second wedge-shaped pressing block 4.7, thereby causing the first wedge-shaped pressing block 4.6 and the second wedge-shaped pressing block 4.7 to move to both sides along the rectangular opening 2.5. At this time, the first wedge-shaped pressing block 4.6 and the second wedge-shaped pressing block 4.7 make lateral movements. During this movement, the elastic blocking member 5.1 is stretched or compressed and has elasticity. As the pressing driving block 4.1 moves until its side plate 4.4 and the first wedge... When the first wedge-shaped pressing block 4.6 and the second wedge-shaped pressing block 4.7 abut against each other, the first wedge-shaped pressing block 4.6 and the second wedge-shaped pressing block 4.7 stop their lateral movement. Then, when the pressing drive block 4.1 moves, it drives the first wedge-shaped pressing block 4.6 and the second wedge-shaped pressing block 4.7 to move toward the hinge joint reinforcement 7 through the side plate 4.4. At this time, the first wedge-shaped pressing block 4.6 and the second wedge-shaped pressing block 4.7 make vertical movements. During this process, the elastic expansion member 5.2 is stretched or compressed to have elasticity until the arc-shaped pressing surfaces 4.3 of the pressing drive block 4.1, the first wedge-shaped pressing block 4.6 and the second wedge-shaped pressing block 4.7 jointly press against the hinge joint reinforcement 7. Then, the straightening operation of the hinge joint reinforcement 7 is performed. During the straightening process of the hinged joint steel bar 7, the thrust of the rod-shaped operating member 1 is transmitted to the first wedge-shaped driving block and the second wedge-shaped driving block through the pressing moving member, the pressing driving member and the side plate 4.4. The pressing driving block 4.1, the first wedge-shaped driving block and the second wedge-shaped driving block jointly apply force to the hinged joint steel bar 7, without damaging the elastic telescopic member 5.2 and the elastic blocking member 5.1. After the hinged joint steel bar 7 is straightened, the pressing force on the pressing moving block 4.2 disappears. Under the joint action of the elastic telescopic member 5.2 and the elastic blocking member 5.1, the first wedge-shaped pressing block 4.6, the second wedge-shaped pressing block 4.7, the pressing driving block 4.1 and the pressing moving block 4.2 all move to the initial state.

[0057] In another embodiment of the present invention, preferably, the elastic telescopic member 5.2 includes a telescopic rod 5.3 disposed on the first wedge-shaped pressing block 4.6 and the second wedge-shaped pressing block 4.7 and parallel to the axial direction of the movement channel 2.6. A second sliding block 5.4 is disposed at the top of the telescopic rod 5.3. A spring member 5.5 is disposed between the second sliding block 5.4 and the first wedge-shaped pressing block 4.6 and the second wedge-shaped pressing block 4.7. A second sliding groove 2.8 is disposed along the length of the rectangular opening 2.5. The second sliding block 5.4 is slidably disposed in the second sliding groove 2.8. An elastic blocking member 5.1 is disposed in the second sliding groove 2.8. An elastic blocking member 5.1 is disposed on one side of each second sliding block 5.4. A mounting plate is disposed in the second sliding groove 2.8. One end of the elastic blocking member 5.1 is fixed to the mounting plate, and the other end is fixed to the second sliding block 5.4. The first wedge-shaped pressing block 4.6 and the second wedge-shaped pressing block 4.7 are parallel to the axial direction of the movement channel 2.6. When the pressing block 4.7 is driven to move laterally, the second sliding block 5.4 moves along the second sliding groove 2.8, thereby stretching the elastic blocking member 5.1 to have elastic force. When the first wedge-shaped pressing block 4.6 and the second wedge-shaped pressing block 4.7 finish moving laterally and move vertically, the side plate 4.4 drives the first wedge-shaped pressing block 4.6 and the second wedge-shaped pressing block 4.7, thereby causing the telescopic rod 5.3 to gradually lengthen, and the spring member 5.5 to be stretched to have elastic force. After the straightening of the hinge joint steel bar 7 is completed, the pressing force on the pressing moving block 4.2 disappears. Under the combined action of the spring member 5.5 and the elastic blocking member 5.1, the telescopic rod 5.3 returns to its initial length, and the second sliding block 5.4 slides along the second sliding groove 2.8 to its initial position, correspondingly causing the first wedge-shaped pressing block 4.6, the second wedge-shaped pressing block 4.7, the pressing driving block 4.1, and the pressing moving block 4.2 to all move to their initial state.

[0058] In another embodiment of the present invention, preferably, the locking member 6.8 is provided with an unlocking member 6.9. The unlocking member 6.9 blocks the movement of the second sliding block 5.4 on the second wedge-shaped pressing block 4.7 along the movement stroke of the second sliding groove 2.8. During the lateral movement of the second wedge-shaped pressing block 4.7, the second sliding block 5.4 drives the unlocking member 6.9, causing the first clamping member 6.1 and the second clamping member 6.2 to move from the clamping state to the unlocked state. The locking member 6.8 can be a locking pin, and the unlocking member 6.9 can be a locking pin. The L-shaped rod has an unlocking component 6.9 fixedly connected to a locking pin at one end to form an integral structure. The other end of the unlocking component 6.9 is equipped with a blocking block, which is slidably disposed within the second sliding groove 2.8. When the second wedge-shaped pressing block 4.7 is in its initial state, the blocking block and the second sliding block 5.4 on the second wedge-shaped pressing block 4.7 are in contact. When the second wedge-shaped pressing block 4.7 is driven to move laterally, the second sliding block 5.4 slides along the second sliding groove 2.8, thereby correspondingly driving the blocking block to slide along the second sliding groove 2.8, causing the unlocking component 6.9 to... .9 The locking component 6.8 releases the locking of the first clamping component 6.1 and the second clamping component 6.2, and the first clamping component 6.1 and the second clamping component 6.2 move to the unlocked state on their own. The advantage of this setting is that, since the second operating state is the last state of the entire operation process, in the previous operating states, the locking component 6 maintains the clamping state between the driving body 2 and the hinge joint steel bar 7, thus facilitating the operation of the rod-shaped operating component 1. When the rod-shaped operating component 1 is in the final second operating state, the rod-shaped operating component... Component 1 directly presses against the hinged joint steel bar 7 through the pressing mechanism 4. The arc-shaped pressing surface 4.3 can engage with the hinged joint steel bar 7, so there is no need to lock the locking component 6 with the locking steel bar. During this operation, the locking component 6 is unlocked, so that the first clamping component 6.1 and the second clamping component 6.2 move from the clamping state to the unlocked state. In this way, after the straightening of the hinged joint steel bar 7 is completed, the driving body 2 can be directly removed from the hinged joint steel bar 7 without manual operation to unlock the first clamping component 6.1 and the second clamping component 6.2, reducing the operation process.

[0059] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for straightening hinged steel bars, comprising a rod-shaped operating component, the rod-shaped operating component including a driving end and an operating end disposed opposite to each other, characterized in that, It also includes a drive body that can be fixed to the end of the hinged steel bar. The drive body is provided with a pressing mechanism for pressing the hinged steel bar. The drive body is provided with a connection structure corresponding to the drive end. During the operation of the rod-shaped operating member, the rod-shaped operating member forms at least two different operating angles with the drive body through the connection structure. It also includes a locking component disposed on the driving body for securing the driving body outer sleeve to the hinged joint rebar; the locking component includes a first clamping member and a second clamping member disposed opposite to each other, the first clamping member and the second clamping member having a clamping state for clamping and locking the hinged joint rebar and an unlocking state for separating from the hinged joint rebar; the locking component also includes a locking element and an elastic element, the elastic element being disposed between the first clamping member and the second clamping member, both the first clamping member and the second clamping member being provided with a first sliding block, the driving body being provided with a first sliding groove for the first sliding block to slide, the elastic element being installed in the first sliding groove, and both ends of the elastic element being fixedly connected to the first sliding block on the first clamping member and the first sliding block on the second clamping member, respectively; The pressing mechanism includes a pressing drive block and a pressing motion block disposed on the pressing drive block. The pressing mechanism also includes a first wedge-shaped pressing block and a second wedge-shaped pressing block disposed on both sides of the pressing drive block. Driving inclined surfaces are provided on opposite sides of the pressing drive block. A side plate is provided on the pressing drive block near the pressing motion block. Pressing inclined surfaces parallel to the driving inclined surfaces are provided on the first and second wedge-shaped pressing blocks. Arc-shaped pressing surfaces are provided at the bottom of the first and second wedge-shaped pressing blocks. The pressing inclined surfaces and the driving motion block... The inclined plane forms a wedge-shaped transmission structure, which enables the pressing block to drive the first wedge-shaped pressing block and the second wedge-shaped pressing block to move in the process of moving from the initial position to the working position. When the pressing block is in the initial position, the arc-shaped pressing surfaces of the pressing drive block, the first wedge-shaped pressing block and the second wedge-shaped pressing block are separated from the hinge joint reinforcement. When the pressing block is in the working position, the arc-shaped pressing surfaces of the pressing drive block, the first wedge-shaped pressing block and the second wedge-shaped pressing block press together against the hinge joint reinforcement.

2. The straightening device for hinged steel bars according to claim 1, characterized in that, The pressing mechanism includes an arc-shaped pressing surface disposed on the driving body, the arc-shaped pressing surface being disposed along the length direction of the driving body.

3. The straightening device for hinged steel bars according to claim 1, characterized in that, The rod-shaped operating member has a movable operating rod inside, and a fixed block is provided at the driving end of the rod-shaped operating member. The upper end of the movable operating rod extends from the upper end of the rod-shaped operating member to form an operating section, and the lower end of the movable operating rod extends from the fixed block to form a positioning section. A positioning screw hole corresponding to the positioning section is provided on the end face of the driving body.

4. The straightening device for hinged steel bars according to claim 1, characterized in that, The connection structure includes two connecting rods, with a first rotating shaft and a second rotating shaft respectively provided at both ends of the connecting rods.

5. The straightening device for hinged steel bars according to claim 4, characterized in that, The drive end is provided with a first shaft hole for mounting the first rotating shaft, and the drive body is provided with a second shaft hole for mounting the second rotating shaft.

6. The straightening device for hinged steel bars according to claim 5, characterized in that, The driving body is provided with a first limiting member and a second limiting member, and the driving body can drive the connecting rod to rotate between the first limiting member and the second limiting member.

7. The straightening device for hinged steel bars according to claim 6, characterized in that, The first limiting member includes a positioning part disposed on the driving body, and the positioning part is disposed corresponding to the driving end.

8. The straightening device for hinged steel bars according to claim 6, characterized in that, The second limiting member includes a limiting baffle disposed on the driving body, the limiting baffle blocking the rotational stroke of the connecting rod.

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