Hinge joint reserved steel bar flattening equipment

Abstract

The utility model provides a hinge joint reserved reinforcing steel bar flattening equipment belongs to the field of construction for solving the problem of the corner breakage of prefabricated component caused by the flattening of the bending reinforcing steel bar in the prior art, it includes mounting support, transmission mechanism, operating handle, at least one set of force transmission component, transmission mechanism sets up on mounting support, and can slide up and down relative to mounting support, force transmission component includes two interval arrangement's pressure bearing rod, and the lower end of pressure bearing rod is used for with bending reinforcing steel bar abuts, and the upper end is rotatably connected with transmission mechanism, operating handle is rotatably connected with mounting support, and operating handle moves down through driving transmission mechanism to drive force transmission component to move down, through setting up mounting support to support transmission mechanism, operating handle, avoid in the process of use to cause the prefabricated component's lack of angle, lead to the bearing capacity reduction of prefabricated component and even the building after completion.

Description

Technical Field

[0001] This utility model belongs to the field of building construction, and in particular relates to a device for flattening pre-reinforced steel bars in hinge joints. Background Technology

[0002] In bridge and other engineering construction, precast components such as hollow slab beams and T-beams are often used to accelerate construction progress. After these components are installed, they need to be connected by hinge joints to form an integral structure. The key to their lateral load-bearing capacity lies in the effective connection of the reinforcing bars within the hinge joints. To ensure the reliability of the hinge joint connections, the following measures are usually taken: circumferential reinforcing bars are pre-embedded on the outer side of the web of the precast hollow slab beam, and bending reinforcing bars are arranged at corresponding positions on both sides of the hinge joint. These reinforcing bars work together with the additional stiffeners added within the hinge joints to improve the overall integrity between the slabs and beams and achieve uniform load distribution. It is worth noting that the exposed bending reinforcing bars must be flattened before hinge joint construction to ensure effective lap joint with the subsequent stiffeners.

[0003] However, in practice, construction workers often use pry bars to flatten the reinforcing bars. This method has obvious drawbacks: it easily leads to damage to the edges and corners of precast components, thereby affecting the structural integrity and load-bearing capacity of the components. This construction defect may pose a potential threat to the quality of the project. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a device for flattening pre-reinforced steel bars in hinge joints, which solves the problem of damage to the edges and corners of precast components when flattening bent steel bars in the prior art.

[0005] To achieve the above and other related objectives, this utility model provides a device for flattening rebar reserved in hinge joints, comprising: a mounting bracket, a transmission mechanism, an operating handle, and at least one set of force transmission components; the transmission mechanism is mounted on the mounting bracket and can slide up and down relative to the mounting bracket; the force transmission component includes two spaced-apart pressure-bearing rods, the lower end of which is used to abut against the bent rebar, and the upper end is rotatably connected to the transmission mechanism; the operating handle is rotatably connected to the mounting bracket, and the operating handle drives the transmission mechanism to move downward, thereby driving the force transmission component to move downward.

[0006] Optionally, the mounting bracket includes a mounting plate, multiple support columns and multiple rollers, with each roller and support column corresponding to the other. One end of each support column is connected to the mounting plate and the other end is connected to the roller.

[0007] Optionally, the force transmission component also includes a first limiting member that corresponds to the pressure rod; one end of the first limiting member is detachably connected to the end of the pressure rod away from the transmission mechanism, and the other end is connected to a limiting foot, with the limiting feet of the two first limiting members in the same group of force transmission components being misaligned.

[0008] Optionally, there are two sets of force transmission components, which are spaced apart. The two pressure rods of each set of force transmission components are rotatably connected to the transmission mechanism.

[0009] Optionally, the transmission mechanism includes a first transmission rod and a transmission seat. The mounting plate is provided with a mounting hole. The first transmission rod is slidably connected to the mounting hole. The transmission seat is located at the upper end of the first transmission rod. The two pressure-bearing rods of each set of force transmission components are rotatably connected to the transmission seat.

[0010] Optionally, the transmission mechanism further includes two second transmission rods, two spacing adjustment components, and two mounting seats, each corresponding to a force transmission component; one end of each second transmission rod is connected to a transmission seat, and the other end is connected to a spacing adjustment component; the mounting seat is connected to the end of the spacing adjustment component away from the second transmission rod; two pressure-bearing rods of the force transmission component are rotatably mounted on the mounting seat; the spacing adjustment component is used to adjust the distance between the mounting seat and the transmission seat.

[0011] Optionally, the spacing adjustment assembly includes an adjustment member, a first adjustment hole disposed on the end of the second transmission rod away from the transmission seat, and a second adjustment hole disposed on the transmission seat. One end of the adjustment member is threadedly connected to the first adjustment hole, and the other end is threadedly connected to the second adjustment hole. The threads at both ends of the adjustment member have the same direction of rotation.

[0012] Optionally, the transmission mechanism also includes a reset component, which is used to drive the force transmission component to move upward.

[0013] Optionally, the reset assembly includes an elastic element and a second limiting element. The elastic element is sleeved on the first transmission rod, with its upper end connected to the transmission seat and its lower end connected to the mounting plate. The second limiting element is disposed at the lower end of the first transmission rod, with its upper top surface used to connect with the lower side surface of the mounting plate.

[0014] As described above, the rebar pressing device for hinge joints of this utility model has at least the following beneficial effects: by setting up an installation bracket to support the transmission mechanism and operating handle, it avoids the occurrence of missing edges and corners in precast components during use, which would reduce the load-bearing capacity of the precast components and even the completed building. Attached Figure Description

[0015] Figure 1 The diagram shown is a schematic diagram of an angle structure of a rebar flattening device for hinge joints according to this utility model.

[0016] Figure 2 This is a schematic diagram of another angle of the structure of a hinge joint pre-reserved steel bar flattening device according to this utility model.

[0017] Figure 3 The diagram shown is a structural schematic of the adjusting component of a hinge joint pre-reserved steel bar flattening device according to this utility model.

[0018] Component designation explanation: 1. Mounting bracket; 11. Mounting plate; 12. Support column; 13. Roller; 2. Transmission mechanism; 21. First transmission rod; 22. Transmission seat; 23. Second transmission rod; 24. Spacing adjustment assembly; 241. Adjusting component; 25. Mounting seat; 27. Reset assembly; 271. Elastic component; 272. Second limiting component; 3. Operating handle; 31. First pressing rod; 32. Second pressing rod; 33. Connecting rod; 34. Third pressing rod; 35. Grip rod; 36. Pressing groove; 4. Force transmission assembly; 41. Pressure bearing rod; 42. First limiting component; 421. Limiting foot; 422. Bending section. Detailed Implementation

[0019] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0020] Please refer to all the accompanying drawings below. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0021] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.

[0022] Please see Figure 1-3This utility model provides a device for flattening rebar reserved in hinge joints, comprising: a mounting bracket 1, a transmission mechanism 2, an operating handle 3, and at least one set of force transmission components 4; the transmission mechanism 2 is mounted on the mounting bracket 1 and can slide up and down relative to the mounting bracket 1; the force transmission component 4 includes two spaced-apart bearing rods 41, the lower end of which is used to abut against the bent rebar, and the upper end is rotatably connected to the transmission mechanism 2; specifically, one bearing rod 41 abuts against the bent rebar of one adjacent precast component, and the other bearing rod 41 abuts against the bent rebar of another adjacent precast component, so that the device can flatten at least two bent rebars simultaneously to improve construction efficiency. The operating handle 3 is rotatably connected to the mounting bracket 1, and the operating handle 3 drives the transmission mechanism 2 to move downward, thereby driving the force transmission component 4 to move downward.

[0023] The mounting bracket 1 may include a mounting plate 11 and multiple support columns 12. There may be four support columns 12, each corresponding to one corner of the mounting plate 11, thus supporting the mounting plate 11 on the precast component. Rollers 13 may be provided at the bottom of each support column 12, two of which may be omnidirectional wheels and the other two may be directional wheels, thereby enabling the mounting bracket 1 to move. Furthermore, a brake may be provided on each roller 13 or on two of the rollers 13, thereby using the brakes to fix the mounting bracket 1 to the precast component and prevent relative displacement between the mounting bracket 1 and the precast component when flattening the bent reinforcing bars. The mounting plate 11 may have mounting holes and four open sections for the bearing rods 41 to pass through.

[0024] The force transmission component 4 also includes a first limiting member 42 corresponding to the bearing rod 41. The first limiting member 42 includes a bent section 422, with a mounting post at the upper end and a limiting foot 421 at the lower end. A first mounting hole is provided on the side of the mounting post. A blind hole for accommodating the mounting post is provided at the lower end of the bearing rod 41, and a second mounting hole communicating with the blind hole is also provided at the lower end of the bearing rod 41. After the mounting post of the first limiting member 42 is placed in the blind hole, the first mounting hole of the bearing rod 41 and the second mounting hole at the lower end of the bearing rod 41 are aligned. Then, a pin or other structure is used to pass through the second mounting hole and connect to the first mounting hole, thereby detachably fixing the mounting post of the first limiting member 42 to the bearing rod 41. With this configuration, different first limiting members 42 can be replaced according to different application scenarios. For example, when the hinge joint between two adjacent precast components is deep, a longer first limiting member 42 can be selected and installed on the bearing rod 41 to ensure that the bending reinforcement of the hinge joint can be flattened. The limiting foot 421 is as follows: Figure 1The arc-shaped structure shown can accommodate steel bars of different diameters. In this embodiment, the limiting feet 421 of the two first limiting members 42 in the same group of force transmission components 4 are staggered. That is, in the extension direction of the precast component, the bent section 422 of one first limiting member 42 extends forward of the precast component, and the bent section 422 of the other first limiting member 42 extends backward of the precast component. This can prevent the supporting feet of the two first limiting members 42 from colliding when the two bearing rods 41 move towards each other during use, so as to prevent the bent steel bars at the hinge joint from being flattened.

[0025] The force transmission components 4 consist of two sets, spaced apart. Each set of force transmission components 4 has two bearing rods 41 rotatably connected to the transmission mechanism 2. This means the equipment can simultaneously flatten four bent reinforcing bars, improving construction efficiency.

[0026] The transmission mechanism 2 includes a first transmission rod 21 and a transmission seat 22. The mounting plate 11 is provided with a mounting hole. The first transmission rod 21 is slidably connected to the mounting hole, thereby using the mounting hole to guide the first transmission rod 21. The transmission seat 22 is located at the upper end of the first transmission rod 21. The two pressure-bearing rods 41 of each set of force transmission components 4 are rotatably connected to the transmission seat 22.

[0027] The transmission mechanism 2 may also include two second transmission rods 23, two spacing adjustment components 24, and two mounting seats 25, which are arranged one-to-one with the force transmission component 4. One end of the second transmission rod 23 is connected to the transmission seat 22, and the other end is connected to the spacing adjustment component 24. The mounting seat 25 is connected to the end of the spacing adjustment component 24 away from the second transmission rod 23. The two pressure rods 41 of the force transmission component 4 are rotatably arranged on the mounting seat 25. The spacing adjustment component 24 is used to adjust the distance between the mounting seat 25 and the transmission seat 22.

[0028] The spacing adjustment assembly 24 includes an adjustment member 241, a first adjustment hole disposed on the end of the second transmission rod 23 away from the transmission seat 22, and a second adjustment hole disposed on the transmission seat 22. One end of the adjustment member 241 is threadedly connected to the first adjustment hole, and the other end is threadedly connected to the second adjustment hole. The threads at both ends of the adjustment member 241 have the same direction of rotation. Specifically, the two ends of the second adjustment member 241 may be provided with external threads with the same direction of rotation, and the first adjustment hole and the second adjustment hole are provided with internal threads with the same direction of rotation, thereby realizing the threaded connection between the second adjustment member 241 and the fourth transmission rod and the transmission seat 22.

[0029] The transmission mechanism 2 also includes a reset assembly 27, which drives the force transmission assembly 4 to move upward, so that after the bent steel bar is flattened, the bearing rod 41 can automatically move upward, improving the work efficiency of construction workers and reducing their labor intensity. Specifically, the reset assembly 27 includes an elastic element 271 and a second limiting element 272. The elastic element 271 can be a spring, which is sleeved on the first transmission rod 21, with its upper end connected to the transmission seat 22 and its lower end connected to the mounting plate 11. The second limiting element 272 is located at the lower end of the first transmission rod 21. The second limiting element 272 can be a nut, which is threaded to the lower end of the first transmission rod 21, and its upper top surface is used to connect with the lower side of the mounting plate 11 to limit the maximum upward displacement of the first transmission rod 21.

[0030] The operating handle 3 may include a first pressing rod 31, a second pressing rod 32, a connecting rod 33, a third pressing rod 34, and a gripping rod 35. One end of the first pressing rod 31 and the second pressing rod 32 can be rotatably connected to the mounting plate 11 via a pivot, and the other end is connected to the connecting rod 33. The third pressing rod 34 is connected to the connecting rod 33, and the gripping rod 35 is connected to the end of the third pressing rod 34 away from the connecting rod 33. The gripping rod 35 and the third pressing rod 34 are connected in a T-shape to facilitate the operator's grip. The lower sides of the first pressing rod 31 and the second pressing rod 32 are provided with pressing grooves 36. The transmission base 22 may be provided with an abutment rod for abutting against the pressing grooves 36. In addition, the abutment rod may be provided with two pressing grooves that correspond one-to-one with the pressing grooves 36, so that the pressing grooves and pressing grooves 36 can be used to prevent the operating handle 3 from shifting left and right.

[0031] In summary, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0032] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A device for flattening pre-reinforced steel bars in hinge joints, characterized in that, include: Mounting bracket, transmission mechanism, operating handle, and at least one set of force transmission components; The transmission mechanism is mounted on the mounting bracket and can slide up and down relative to the mounting bracket; The force transmission component includes two spaced-apart pressure-bearing rods, the lower end of which is used to abut against the bent steel bar, and the upper end is rotatably connected to the transmission mechanism. The operating handle is rotatably connected to the mounting bracket. The operating handle drives the transmission mechanism to move downward, thereby driving the force transmission component to move downward.

2. The device for flattening pre-reinforced steel bars in hinge joints according to claim 1, characterized in that: The mounting bracket includes a mounting plate, multiple support columns and multiple rollers. The rollers and the support columns are arranged in a one-to-one correspondence. One end of each support column is connected to the mounting plate and the other end is connected to the roller.

3. The device for flattening pre-reinforced steel bars in hinge joints according to claim 2, characterized in that: The force transmission component also includes a first limiting member that corresponds one-to-one with the pressure-bearing rod; One end of the first limiting member is detachably connected to the end of the pressure rod away from the transmission mechanism, and the other end is offset from the limiting feet of the two first limiting members in the same group of force transmission components.

4. The device for flattening pre-reinforced steel bars in hinge joints according to claim 3, characterized in that, The force transmission components are in two sets, and the two sets of force transmission components are arranged at intervals. The two pressure-bearing rods of each set of force transmission components are rotatably connected to the transmission mechanism.

5. The device for flattening pre-reinforced steel bars in hinge joints according to claim 4, characterized in that: The transmission mechanism includes a first transmission rod and a transmission seat. The mounting plate is provided with a mounting hole. The first transmission rod is slidably connected to the mounting hole. The transmission seat is disposed at the upper end of the first transmission rod. The two pressure-bearing rods of each set of force transmission components are rotatably connected to the transmission seat.

6. The device for flattening pre-reinforced steel bars in hinge joints according to claim 5, characterized in that: The transmission mechanism also includes two second transmission rods, two spacing adjustment components, and two mounting bases, which are arranged one-to-one with the force transmission components. One end of the second transmission rod is connected to the transmission seat, and the other end is connected to the spacing adjustment component. The mounting seat is connected to the end of the spacing adjustment component away from the second transmission rod. The two pressure-bearing rods of the force transmission component are rotatably mounted on the mounting seat. The spacing adjustment component is used to adjust the distance between the mounting base and the transmission base.

7. The device for flattening pre-reinforced steel bars in hinge joints according to claim 6, characterized in that: The spacing adjustment assembly includes an adjustment component, a first adjustment hole disposed on one end of the second transmission rod away from the transmission seat, and a second adjustment hole disposed on the transmission seat. One end of the adjustment component is threadedly connected to the first adjustment hole, and the other end is threadedly connected to the second adjustment hole. The threads at both ends of the adjusting member have the same direction of rotation.

8. The device for flattening pre-reinforced steel bars in hinge joints according to claim 5, characterized in that: The transmission mechanism also includes a reset component, which is used to drive the force transmission component to move upward.

9. The device for flattening pre-reinforced steel bars in hinge joints according to claim 8, characterized in that: The reset assembly includes an elastic element and a limiting element. The elastic element is sleeved on the first transmission rod, with its upper end connected to the transmission seat and its lower end connected to the mounting plate. The limiting member is located at the lower end of the first transmission rod, and its top surface is used to connect with the lower side of the mounting plate.

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