A reinforcing bar measuring device

Abstract

The utility model discloses a reinforcing bar measuring device, including the case, the left side of case upper end is equipped with the protective housing, and the front and back inner wall of protective housing has seted up the sliding slot respectively, and the sliding connection of sliding slot between has the sliding board, and the front side of sliding board right -hand end is equipped with the pressing strip, and the right side swing joint of case upper end has the turntable, and the upper end of turntable is equipped with the bending core column, and the upper end of turntable has seted up the adjusting hole of uniform distribution, and the inside cooperation of adjusting hole is installed with push bending column, still including fixed mechanism, fixed mechanism: it includes guide rod, support board, top strip, wave friction bump and sliding plate, the left side of sliding plate front end is equipped with the protective box, and the sliding hole between sliding plate and pressing strip is slidably connected with guide rod respectively in the inside, this reinforcing bar measuring device, when the bending of reinforcing bar is measured, the reinforcing bar of different diameter is fixed fast, stable, and the adaptability is stronger, is convenient for adjusting, improves the work efficiency of reinforcing bar measurement.

Description

Technical Field

[0001] This utility model relates to the field of rebar measurement technology, specifically a rebar measuring device. Background Technology

[0002] Reinforcing steel refers to steel used in reinforced concrete and prestressed reinforced concrete. It is one of the most commonly used steel materials in construction engineering. It has advantages such as high strength, good plasticity, and weldability. It is widely used in civil engineering construction such as houses, bridges, and roads. It includes yield strength and tensile strength. The higher the strength grade, the stronger the load-bearing capacity. It is measured by elongation. Reinforcing steel with good plasticity is not easy to break and has better seismic performance. The ability of reinforcing steel to withstand bending deformation at room temperature is used to test the toughness and material uniformity of reinforcing steel. The reinforcing steel measuring device bends the reinforcing steel to a specified angle and observes whether there are defects such as cracks or fractures on the surface of the sample to determine whether the bending performance is qualified.

[0003] In some existing steel bar measuring devices, when measuring the bending properties of steel bars, a pressure head and support rollers are installed, the distance between the support rollers is adjusted, the steel bar is placed on the support rollers, the axis of the bending mandrel pressure head is perpendicular to the axis of the sample and the center is aligned, the force is slowly applied to the specified bending angle and then the load is stopped, and the bending is repeated according to the standard rate and number of times.

[0004] Existing rebar measuring devices of this type have the following problems: when measuring the bending of rebar, the method of fixing the rebar is singular and unstable, the manual adjustment process is cumbersome, and it is difficult to quickly adapt to the bending measurement requirements of rebars of different diameters. Therefore, we propose a rebar measuring device. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a rebar measuring device that can quickly and stably fix rebars of different diameters when measuring the bending of rebars, making it more adaptable, easier to adjust, and improving the work efficiency of rebar measurement. It can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rebar measuring device, including a housing, a protective shell on the upper left side of the housing, sliding grooves on the front and rear inner walls of the protective shell, a sliding plate slidably connected between the sliding grooves, a pressure strip on the front side of the right end of the sliding plate, a turntable rotatably connected to the upper right side of the housing, a bending mandrel on the upper end of the turntable, and evenly distributed adjustment holes on the upper end of the turntable, with a bending pusher installed inside the adjustment holes, and also includes a fixing mechanism;

[0007] The fixing mechanism includes guide rods, support plates, top bars, wave friction protrusions, and sliding plates. A protective box is provided on the left side of the front end of the sliding plate. Guide rods are slidably connected inside the sliding holes between the sliding plate and the pressure bar. A support plate is fixedly connected between the right ends of the guide rods. A top bar is provided on the left end of the support plate. Wave friction protrusions are evenly distributed on the left side of the top bar. A sliding plate is fixedly connected between the left ends of the guide rods. The outer wall of the sliding plate is slidably connected to the inner wall of the protective box. When measuring the bending of the reinforcing bars, it can quickly and stably fix reinforcing bars of different diameters, making it more adaptable, easier to adjust, and improving the work efficiency of reinforcing bar measurement.

[0008] Furthermore, the upper end of the protective shell is provided with a control switch group, the input end of which is electrically connected to an external power source to provide electrical connections for various electrical appliances.

[0009] Furthermore, the fixing mechanism also includes a driving assembly, which includes a U-shaped block, a connecting rod, a U-shaped seat, a bidirectional lead screw, and a guide rod. A guide rod is fixedly connected to the left side between the front and rear inner walls of the protective box, and a bidirectional lead screw is rotatably connected to the middle between the front and rear inner walls of the protective box. The front and rear ends of the bidirectional lead screw are respectively threaded to U-shaped seats, and the sliding holes at the left end of the U-shaped seats are slidably connected to the guide rod. A U-shaped block is provided at the left end of the sliding plate, and the left sides of the front and rear ends of the U-shaped block are respectively rotatably connected to the right end of the horizontally adjacent U-shaped seat by a connecting rod through a pin, providing a rotatable connection.

[0010] Furthermore, the drive assembly also includes bellows. Bellows are fixedly connected between the rear wall of the protective box and the rear end of the rear U-shaped seat, between the inner sides of the two U-shaped seats, and between the front end of the front U-shaped seat and the front wall of the protective box. The bellows are respectively sleeved on the outside of the bidirectional lead screw for protection.

[0011] Furthermore, the drive assembly also includes a motor, which is located at the rear end of the protective box. The front end of the output shaft of the motor is fixedly connected to the rear end of the bidirectional lead screw, and the input end of the motor is electrically connected to the output end of the control switch group to provide rotation drive.

[0012] Furthermore, the top wall of the chassis is equipped with a second motor. The upper end of the output shaft of the second motor is fixedly connected to the middle of the lower end of the turntable. The input end of the second motor is electrically connected to the output end of the control switch group to provide rotation drive.

[0013] Furthermore, the left side wall of the protective shell is provided with an electric push rod. The telescopic end of the electric push rod is fixedly connected to the middle of the left end of the sliding plate. The input end of the electric push rod is electrically connected to the output end of the control switch group to provide movement drive.

[0014] Furthermore, a cover plate is hinged to the right side of the rear end of the chassis for protection.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This rebar measuring device has the following advantages:

[0016] Driven by motor one, the U-shaped seat pushes the U-shaped block through the connecting rod via the double-acting screw and guide rod, causing the slide plate to slide inside the protective box. The slide plate, through the guide rod and support plate, brings the top bar close to the steel bar, so that the wave friction protrusion increases the friction force and firmly clamps the steel bar. When measuring the bending of the steel bar, it can quickly and stably fix steel bars of different diameters, making it more adaptable, easier to adjust, and improving the work efficiency of steel bar measurement. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the front side cross-sectional structure of the present invention;

[0020] Figure 4 This is an enlarged structural diagram of point A in this utility model.

[0021] In the diagram: 1. Chassis, 2. Protective shell, 3. Slide groove, 4. Sliding plate, 5. Pressure strip, 6. Protective box, 7. Fixing mechanism, 71. Guide rod, 72. Support plate, 73. Top strip, 74. Wave friction protrusion, 75. Slide plate, 76. Drive assembly, 761. U-shaped block, 762. Connecting rod, 763. U-shaped seat, 764. Two-way lead screw, 765. Guide rod, 766. Corrugated pipe, 767. Motor 1, 8. Motor 2, 9. Turntable, 10. Adjustment hole, 11. Push-bending column, 12. Bending mandrel column, 13. Electric push rod, 14. Control switch group, 15. Cover plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4This embodiment provides a technical solution: a rebar measuring device, including a housing 1, a protective shell 2 on the upper left side of the housing 1, grooves 3 on the front and rear inner walls of the protective shell 2, a sliding plate 4 slidably connected between the grooves 3, a pressure strip 5 on the front side of the right end of the sliding plate 4, a turntable 9 rotatably connected to the upper right side of the housing 1, a bending mandrel 12 on the upper end of the turntable 9, and evenly distributed adjustment holes 10 on the upper end of the turntable 9. A bending pusher 11 is fitted inside the adjustment holes 10, and a fixing mechanism 7 is also included. The upper end of the protective shell 2 is equipped with a control switch group 14, the input end of which is electrically connected to an external power supply. The top wall of the chassis 1 is equipped with a second motor 8, the upper end of which is fixedly connected to the middle of the lower end of the turntable 9. The input end of the second motor 8 is electrically connected to the output end of the control switch group 14. The left side wall of the protective shell 2 is equipped with an electric push rod 13, the telescopic end of which is fixedly connected to the middle of the left end of the sliding plate 4. The input end of the electric push rod 13 is electrically connected to the output end of the control switch group 14. The right side of the rear end of the chassis 1 is open to... A cover plate 15 is hinged to the rebar. When measuring the rebar, the cover plate 15 is first opened, and the rebar is placed between the right side of the pressure strip 5 and the mandrel 12. By controlling the control switch group 14, the electric push rod 13 operates. The telescopic end of the electric push rod 13 pushes the sliding plate 4 to slide to the right in the groove 3 of the protective shell 2. The pressure strip 5 moves with the sliding plate 4, initially pressing the rebar close to the mandrel 12 to achieve initial positioning. Then, the cover plate 15 is closed, and by controlling the control switch group 14, the second motor 8 operates. The second motor 8 is a stepper motor. The output shaft of motor 8 drives turntable 9 to rotate at a specified angle. By inserting the bending column 11 into the adjustment hole 10 at different positions, the arm length of the steel bar bend can be adjusted according to the distance between the bending column 11 and the bending mandrel 12. The steel bar is bent with the bending mandrel 12 as the bending point. The bending column 11 pushes one side of the steel bar to bend. After bending at the specified angle, the cover plate 15 is lifted, and the drive motor 767 and motor 8 are rotated counterclockwise to remove the steel bar. Then the damage at the steel bar bend is observed and recorded.

[0024] Fixing mechanism 7 includes guide rods 71, support plate 72, top bar 73, wave friction protrusions 74, and sliding plate 75. A protective box 6 is provided on the left side of the front end of the sliding plate 4. Guide rods 71 ​​are slidably connected inside the sliding holes between the sliding plate 4 and the pressure bar 5. The support plate 72 is fixedly connected to the right ends of the guide rods 71. A top bar 73 is provided on the left end of the support plate 72. Wave friction protrusions 74 are evenly distributed on the left side of the top bar 73. A sliding plate 75 is fixedly connected to the left ends of the guide rods 71. The outer wall of the sliding plate 75 is slidably connected to the inner wall of the protective box 6. Fixing mechanism 7 also includes a drive assembly 76, which includes U... The protective box 6 comprises a block 761, a connecting rod 762, a U-shaped seat 763, a double-acting screw 764, and a guide rod 765. A guide rod 765 is fixedly connected to the left side between the front and rear inner walls of the protective box 6. A double-acting screw 764 is rotatably connected to the middle between the front and rear inner walls of the protective box 6. The front and rear ends of the double-acting screw 764 are threadedly connected to U-shaped seats 763. The sliding holes at the left ends of the U-shaped seats 763 are slidably connected to the guide rod 765. A U-shaped block 761 is provided at the left end of the sliding plate 75. The left sides of the front and rear ends of the U-shaped block 761 are rotatably connected to the right ends of the laterally adjacent U-shaped seats 763 via pins. The drive assembly 76 also includes... A bellows 766 is fixedly connected between the rear wall of the protective box 6 and the rear end of the rear U-shaped seat 763, between the inner sides of the two U-shaped seats 763, and between the front end of the front U-shaped seat 763 and the front wall of the protective box 6. The bellows 766 are respectively sleeved on the outside of the bidirectional lead screw 764 (the bellows 766 are sleeved on the outside of the bidirectional lead screw 764 to prevent dust and debris from entering the transmission mechanism and to ensure smooth rotation of the lead screw). The drive assembly 76 also includes a motor 767. The motor 767 is located at the rear end of the protective box 6, and the front end of the output shaft of the motor 767 is fixedly connected to the rear end of the bidirectional lead screw 764. The input end of motor 767 is electrically connected to the output end of control switch group 14. By adjusting control switch group 14, motor 767 operates. The output shaft of motor 767 drives the bidirectional lead screw 764 to rotate. Since the threads at both ends of the bidirectional lead screw 764 are opposite, the U-shaped seats 763 on both sides move towards the middle along the guide rod 765. The U-shaped seats 763 push the U-shaped block 761 through the connecting rod 762, thereby driving the slide plate 75 to slide in the protective box 6. The slide plate 75 drives the guide rod 71 to move laterally. Through the support plate 72, the top bar 73 is brought close to the steel bar. The wave friction protrusion 74 on its left side increases the friction force and firmly clamps the steel bar.

[0025] The working principle of the rebar measuring device provided by this utility model is as follows: When measuring the rebar, first open the cover plate 15, place the rebar between the right side of the pressure strip 5 and the bending column 12, adjust the control switch group 14, the electric push rod 13 operates, the telescopic end of the electric push rod 13 pushes the sliding plate 4 to slide to the right in the sliding groove 3 of the protective shell 2, the pressure strip 5 moves with the sliding plate 4, initially pressing the rebar close to the bending column 12 to achieve initial positioning. Then close the cover plate 15, adjust the control switch group 14, the motor 767 operates, the output shaft of the motor 767 drives the bidirectional lead screw 764 to rotate. Since the threads at both ends of the bidirectional lead screw 764 are opposite, the U-shaped seats 763 on both sides move towards the middle along the guide rod 765. The U-shaped seats 763 push the U-shaped block 761 through the connecting rod 762, thereby driving the sliding plate 75 to slide in the protective box 6. Plate 75 drives guide rod 71 to move laterally, and support plate 72 brings top bar 73 close to the reinforcing bar. The wave friction protrusion 74 on its left side increases the friction and firmly clamps the reinforcing bar. By controlling switch group 14, motor 8 operates. Motor 8 is a stepper motor. The output shaft of motor 8 drives turntable 9 to rotate by a specified angle. By inserting push bending column 11 into adjustment holes 10 at different positions, the arm length of the reinforcing bar bend can be adjusted according to the distance between push bending column 11 and bending mandrel 12. The reinforcing bar is bent with bending mandrel 12 as the bending point. Push bending column 11 pushes one side of the reinforcing bar to bend. After bending to the specified angle, cover plate 15 is lifted. By controlling switch group 14, motor 767 and motor 8 rotate counterclockwise and then stop. Then the reinforcing bar is removed. The damage at the bending point of the reinforcing bar is observed and recorded to complete the inspection of the reinforcing bar.

[0026] It is worth noting that, in the embodiments disclosed above, the motor 767 can be YJ61, the motor 8 can be HT34-505, and the electric push rod 13 can be DYTZ. The control switch group 14 is provided with switch buttons that correspond one-to-one with the motor 767, the motor 8, and the electric push rod 13 and are used to control their switching operation.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A rebar measuring device, comprising a housing (1), wherein a protective shell (2) is provided on the left side of the upper end of the housing (1), and sliding grooves (3) are respectively provided on the front and rear inner walls of the protective shell (2), a sliding plate (4) is slidably connected between the sliding grooves (3), a pressure strip (5) is provided on the front side of the right end of the sliding plate (4), a turntable (9) is rotatably connected to the right side of the upper end of the housing (1), a bending mandrel (12) is provided on the upper end of the turntable (9), and evenly distributed adjustment holes (10) are provided on the upper end of the turntable (9), and a bending pusher (11) is installed inside the adjustment holes (10), characterized in that: It also includes fixed mechanisms (7); Fixed mechanism (7): It includes guide rod (71), support plate (72), top bar (73), wave friction protrusion (74) and slide plate (75). The left side of the front end of the sliding plate (4) is provided with a protective box (6). The guide rod (71) is slidably connected to the inside of the sliding hole between the sliding plate (4) and the pressure bar (5). The right end of the guide rod (71) is fixedly connected to the support plate (72). The left end of the support plate (72) is provided with a top bar (73). The left side of the top bar (73) is provided with evenly distributed wave friction protrusion (74). The left end of the guide rod (71) is fixedly connected to the slide plate (75). The outer wall of the slide plate (75) is slidably connected to the inner wall of the protective box (6).

2. The rebar measuring device according to claim 1, characterized in that: The upper end of the protective shell (2) is provided with a control switch group (14), and the input end of the control switch group (14) is electrically connected to an external power source.

3. A rebar measuring device according to claim 2, characterized in that: The fixing mechanism (7) further includes a driving assembly (76), which includes a U-shaped block (761), a connecting rod (762), a U-shaped seat (763), a two-way lead screw (764), and a guide rod (765). The guide rod (765) is fixedly connected to the left side between the front and rear inner walls of the protective box (6), and the two-way lead screw (764) is rotatably connected to the middle between the front and rear inner walls of the protective box (6). The front and rear ends of the two-way lead screw (764) are respectively threaded to the U-shaped seat (763). The sliding hole at the left end of the U-shaped seat (763) is slidably connected to the guide rod (765). The left end of the sliding plate (75) is provided with a U-shaped block (761). The left side of the front and rear ends of the U-shaped block (761) and the right end of the horizontally adjacent U-shaped seat (763) are respectively rotatably connected by a connecting rod (762) through a pin.

4. A rebar measuring device according to claim 3, characterized in that: The drive assembly (76) also includes a bellows (766). The bellows (766) are fixedly connected between the rear wall of the protective box (6) and the rear end of the rear U-shaped seat (763), between the inner sides of the two U-shaped seats (763), and between the front end of the front U-shaped seat (763) and the front wall of the protective box (6). The bellows (766) are respectively sleeved on the outside of the bidirectional lead screw (764).

5. A rebar measuring device according to claim 4, characterized in that: The drive assembly (76) also includes a motor (767). The rear end of the protective box (6) is provided with a motor (767). The front end of the output shaft of the motor (767) is fixedly connected to the rear end of the bidirectional lead screw (764). The input end of the motor (767) is electrically connected to the output end of the control switch group (14).

6. A rebar measuring device according to claim 2, characterized in that: The top wall of the chassis (1) is provided with a second motor (8). The upper end of the output shaft of the second motor (8) is fixedly connected to the middle part of the lower end of the turntable (9). The input end of the second motor (8) is electrically connected to the output end of the control switch group (14).

7. A rebar measuring device according to claim 2, characterized in that: The left side wall of the protective shell (2) is provided with an electric push rod (13). The telescopic end of the electric push rod (13) is fixedly connected to the middle of the left end of the sliding plate (4). The input end of the electric push rod (13) is electrically connected to the output end of the control switch group (14).

8. A rebar measuring device according to claim 1, characterized in that: The right side of the rear end of the chassis (1) is hinged to a cover plate (15).

Images