Steel bar after-fracture elongation detection equipment based on multi-point monitoring

Abstract

The utility model discloses a steel bar after-fracture elongation detection device based on multi-point monitoring, which comprises a base, the upper surface of the base is fixedly provided with mounting plates, the outer surfaces of the opposite sides of the two mounting plates are provided with rotary protective flip covers, the outer surfaces of the mounting plates are fixedly provided with hydraulic rods, and the hydraulic rods are fixedly provided with hydraulic cylinders. A hydraulic rod is arranged in the base, one end of the hydraulic rod penetrates through the inner side surface of the mounting plate and is fixedly connected with a chuck, a monitoring mechanism is arranged in the base, the detection accuracy of the percentage elongation after fracture is guaranteed by monitoring all point positions of the reinforcing steel bar in real time, the monitoring mechanism comprises a bearing rod, and the bearing rod is mounted at the upper end of the base. According to the equipment for detecting the percentage elongation after fracture of the reinforcing steel bar based on multi-point monitoring, the multiple groups of bearing rods and locking rings are fixed to the surface of the reinforcing steel bar to be detected, so that the elongation degree of each part of the reinforcing steel bar can be continuously monitored in the process of gradually deforming under the action of tensile force, and the purpose of ensuring the accuracy of detection data is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to reinforcing bar detection technical field, concretely is a reinforcing bar post elongation detection equipment based on multi -point monitoring. BACKGROUND

[0002] In modern construction engineering, as a key structural material, the quality and performance of steel bar play a decisive role in the stability, safety and durability of the building. As an important indicator for evaluating the plastic deformation capacity of steel bar, accurate detection of its value is of great significance. However, most traditional detection methods rely on single-point measurement. In the steel bar tensile test, the deformation of steel bar is not uniformly distributed. Single-point measurement is easily disturbed by local deformation differences. For example, when there is a small material unevenness or internal defect in a part of the steel bar, the deformation of this part may be significantly different from other parts. Single-point measurement can only obtain information of this local point and cannot fully reflect the elongation of the whole steel bar. This local measurement result often cannot accurately represent the real plastic deformation capacity of the steel bar, which may lead to misjudgment of the quality of the steel bar. In actual engineering, if the steel bar is selected according to inaccurate post-elongation data, the building may be damaged or deformed prematurely when bearing external force.

[0003] Secondly, there are serious problems in measurement accuracy. The measurement tools and methods used by traditional detection equipment have certain accuracy limitations. The measurement tools may not be accurate due to manufacturing errors, wear and tear, etc. At the same time, measurement personnel cannot avoid human errors such as reading errors and measurement position deviations during operation. These factors superimpose on each other, greatly reducing the accuracy of the measurement result. For some high-end construction engineering or special structures with extremely strict requirements for steel bar quality, the existing measurement accuracy cannot meet the actual demand. A small measurement error may trigger a series of chain reactions, affecting the selection of steel bar, construction, and overall performance evaluation of the building, and further causing potential problems in engineering quality. Moreover, the traditional detection process is complex and inefficient. From equipment installation, debugging to actual measurement and data recording, each link needs to consume a lot of time and manpower. Due to the complex structure of the equipment and the complicated operation process, professional technical personnel need to operate for a long time, which not only increases the detection cost but also may cause equipment failure or inaccurate measurement results due to improper human operation. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a reinforcing bar post elongation detection equipment based on multi-point monitoring to solve the problem of insufficient detection points leading to inaccurate data and complicated detection process in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a reinforcing steel bar postelongation rate detection equipment based on multi point monitoring, including base, the upper surface fixed setting of base has the mounting panel, and the outer surface of the side of two mounting panels is installed with the rotation's protection flip, the outside surface fixed mounting of mounting panel has the hydraulic pressure rod, and the one end of hydraulic pressure rod is fixedly connected with the chuck through the inside surface of mounting panel, the inside of base is provided with monitoring mechanism, guarantees the postelongation rate detection accuracy through the mode of real time monitoring to each point of reinforcing steel bar,

[0006] The monitoring mechanism comprises: a supporting rod, the supporting rod is installed at the upper end of the base, a locking ring is fixedly connected to the upper end of the supporting rod through bolts, a sliding sliding plate is installed in the base, and displacement sensors are fixedly arranged on the inside surfaces of the base on both sides of the sliding plate.

[0007] Preferably, the lower end of the supporting rod penetrates the upper end of the sliding plate, and the supporting rod and the sliding plate are slidingly connected, and a spring is connected between the supporting rod and the sliding plate, the upper end of the supporting rod penetrates the upper surface of the base, and the supporting rod and the base are gap-fitted.

[0008] The above technical scheme enables the supporting rod to displace along with the deformation amount of the reinforcing steel bar during the deformation of the reinforcing steel bar through the gap between the supporting rod and the base.

[0009] Preferably, the two displacement sensors are oppositely arranged, and a gap is left between the one end of the two displacement sensors facing the sliding plate and the sliding plate.

[0010] The above technical scheme enables the displacement sensors to monitor the displacement direction and displacement amount of the sliding plate.

[0011] Preferably, the upper end of the base is provided with a positive pressure exhaust structure, and the base avoids the fragments of the reinforcing steel bar falling into the inside of the base through outward exhaust.

[0012] The above technical scheme enables the displacement sensors to be unaffected by the fragments generated by the fragmentation of the reinforcing steel bar.

[0013] Preferably, the positive pressure exhaust structure comprises: a locking rod, the locking rod is fixedly arranged on the inside surface of one end of the protection flip, a piston cylinder is fixedly arranged on the upper surface of one end of the base, one end of the piston cylinder is penetrated by a limiting clamp, and a press switch is fixedly installed on the inside surface of one end of the limiting clamp, a pressurizing connector is fixedly arranged on the upper surface of the base on one side of the piston cylinder, the lower end of the pressurizing connector is penetrated by the upper end of a pressurizing pipe, and the lower end of the pressurizing pipe penetrates the inside surface of the base.

[0014] The above technical scheme enables the pressurizing pipe to inject air into the base for positive pressure impurity removal.

[0015] Preferably, the piston cylinder and the limiting plate are in sliding friction connection, and a spring is connected between the piston cylinder and the limiting plate, and one end of the piston cylinder is connected with the pressurizing connector.

[0016] The above technical solution enables the limiting plate to be pushed and slide when the internal pressure of the piston cylinder increases.

[0017] Preferably, the limiting plate is designed in a C shape, and the limiting plate is connected with the locking rod through the C-shaped one end, and one end of the locking rod is attached to the press switch.

[0018] The above technical solution enables the hydraulic rod to be automatically started to stretch the steel bar after high-pressure air is injected into the base when the protective flip cover is closed.

[0019] Compared with the prior art, the steel bar post-breaking elongation detection device based on multi-point monitoring has the beneficial effects that:

[0020] 1. The steel bar is fixed on the surface by the multiple sets of supporting rods and locking rings, so that the deformation of the steel bar can be continuously monitored during the deformation process under the tension, thereby ensuring the accuracy of the detection data.

[0021] 2. Further, the displacement sensor timely monitors the position of the sliding plate, so that the displacement sensor can quickly feedback and record the elongation rate of the steel bar in the form of data, thereby improving the overall detection efficiency and the stability of the recorded data.

[0022] 3. Further, the pressurizing connector continuously injects pressurized air into the base, so that the fragments generated by the detection of the steel bar breaking do not enter the inside of the base where the displacement sensor is located, and the pressurizing connector is connected with the pressurizing pipeline to transfer the pressure to the piston cylinder, so that the press switch can be triggered when the limiting plate and the locking rod are engaged to lock the protective flip cover, thereby sending an electrical signal to the hydraulic rod, so that the hydraulic rod can automatically stretch the steel bar, thereby avoiding the situation that the fragments are scattered when the hydraulic rod is started without the protective flip cover being closed. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a whole three-dimensional structure schematic diagram of the utility model;

[0024] Figure 2 It is a three-dimensional structure schematic diagram of the base, the supporting rod and the locking ring connection of the utility model;

[0025] Figure 3 It is a three-dimensional structure schematic diagram of the piston cylinder, the pressurizing connector and the pressurizing pipe connection section view of the utility model;

[0026] Figure 4 It is the three-dimensional structure schematic view of the connection of the piston cylinder, the limiting clamping plate and the press switch of the utility model;

[0027] Figure 5 It is the three-dimensional structure schematic view of the whole section surface of the utility model;

[0028] Figure 6 It is the three-dimensional structure schematic view of the connection of the base, the sliding plate and the displacement sensor section surface of the utility model.

[0029] In the drawing: 1, base;2, mounting plate;3, protective flap;4, chuck;5, hydraulic rod;6, supporting rod;7, locking ring;8, sliding plate;9, displacement sensor;10, locking rod;11, piston cylinder;12, limiting clamping plate;13, press switch;14, pressurizing connector;15, pressurizing pipe. DETAILED DESCRIPTION

[0030] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0031] Please refer to Figures 1-6 The utility model provides a kind of technical scheme: a steel bar post-rupture elongation detection equipment based on multipoint monitoring.

[0032] Embodiment one

[0033] Disclosed in this embodiment: base 1, the upper surface of base 1 is fixedly provided with mounting plate 2, and the outer surface of the side of 2 mounting plate 2 is installed with the rotating protective flap 3, the outer side surface of mounting plate 2 is fixedly installed with hydraulic rod 5, and the one end of hydraulic rod 5 is fixedly connected with chuck 4 penetrating the inner side surface of mounting plate 2, the inside of base 1 is provided with monitoring mechanism, and the post-rupture elongation detection accuracy is ensured by the way of real-time monitoring of each point of steel bar;

[0034] Monitoring mechanism includes: supporting rod 6, supporting rod 6 is installed at the upper end of base 1, the upper end of supporting rod 6 is fixedly connected with locking ring 7 by bolt, the inside of base 1 is installed with sliding sliding plate 8, and the inner side surface of the base 1 of the both sides of sliding plate 8 is fixedly provided with displacement sensor 9;

[0035] The lower end of the supporting rod 6 penetrates the upper end of the sliding plate 8, and the supporting rod 6 is in sliding connection with the sliding plate 8, and a spring is connected between the supporting rod 6 and the sliding plate 8, the upper end of the supporting rod 6 penetrates the upper surface of the base 1, and the supporting rod 6 is in clearance fit with the base 1;

[0036] The two displacement sensors 9 are oppositely arranged, and a gap is left between the one end of the two displacement sensors 9 and the sliding plate 8;

[0037] In use, first, the protective flap 3 between the base 1 and the mounting plate 2 is opened, then the steel bar to be detected is placed on the upper end of the supporting rod 6, and then the steel bar is fixed with the supporting rod 6 through the locking ring 7 and the bolt, at this time the protective flap 3 is closed, the hydraulic rod 5 is started to drive the chuck 4 to move to the two ends of the steel bar, the chuck 4 is used to clamp and fix the two ends of the steel bar, then when the hydraulic rod 5 drives the two ends of the steel bar to stretch through the chuck 4, at this time the supporting rod 6 drives the sliding plate 8 to move relative to the two displacement sensors 9 on both sides in the displacement process along with the elongation of the steel bar, the displacement sensors 9 monitor and feed back the real-time data of the sliding direction and sliding distance of the sliding plate 8, until the steel bar is broken.

[0038] Example two

[0039] This embodiment discloses that on the basis of example 1, the upper end of the base 1 is provided with a positive pressure exhaust structure, the base 1 avoids the fragments of the broken steel bar from falling into the inside of the base 1 by the way of outward exhaust;

[0040] The positive pressure exhaust structure comprises: a locking rod 10 fixedly arranged on the inner side surface of one end of the protective flap 3, a piston cylinder 11 fixedly arranged on the upper surface of one end of the base 1, and one end of the piston cylinder 11 penetrated by a limiting clamping plate 12, and the inner side surface of one end of the limiting clamping plate 12 fixedly installed with a press switch 13, a pressurizing connector 14 fixedly arranged on the upper surface of the base 1 on one side of the piston cylinder 11, and the lower end of the pressurizing connector 14 penetrated by the upper end of a pressurizing pipe 15, and the lower end of the pressurizing pipe 15 penetrates the inner side surface of the base 1;

[0041] The piston cylinder 11 is in sliding friction connection with the limiting clamping plate 12, and a spring is connected between the piston cylinder 11 and the limiting clamping plate 12, and one end of the piston cylinder 11 is in communication with the pressurizing connector 14;

[0042] The limiting clamping plate 12 is designed in C shape, and the limiting clamping plate 12 is connected with the locking rod 10 through the C-shaped one end, and the one end of the locking rod 10 is in contact with the press switch 13;

[0043] When the protective cover 3 is turned off, the trachea is connected with the pressurizing connector 14 at this time, the internal pressure of the pressurizing connector 14 is transmitted to the inside of the piston cylinder 11 to push the limiting plate 12 to slide until the limiting plate 12 is clamped with the locking rod 10, at this time, the press switch 13 is triggered by the contact with one end of the locking rod 10, so that the press switch 13 sends an electric signal to the hydraulic rod 5, so that the hydraulic rod 5 drives the clamp head 4 to detect the stretching of the steel bar, at the same time, the pressurizing connector 14 injects air into the inside of the base 1 through the pressurizing pipe 15, the high-pressure air is discharged through the gap between the supporting rod 6 and the upper surface of the base 1, so as to prevent the debris from entering the inside of the base 1 where the displacement sensor 9 is arranged to affect the detection accuracy.

[0044] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rebar elongation testing device based on multi-point monitoring, comprising a base (1), wherein mounting plates (2) are fixedly disposed on the upper surface of the base (1), and rotating protective flip covers (3) are installed on the outer surfaces of the two mounting plates (2) facing each other, and hydraulic rods (5) are fixedly disposed on the outer surfaces of the mounting plates (2), and one end of the hydraulic rods (5) is fixedly connected to a clamp (4) through the inner surface of the mounting plates (2), characterized in that: The inside of the base (1) is provided with a monitoring mechanism, which ensures the detection accuracy of the post-breaking elongation by real-time monitoring of each point of the steel bar; The monitoring mechanism comprises a supporting rod (6) installed at the upper end of the base (1), the upper end of the supporting rod (6) is fixedly connected with a locking ring (7) through bolts, the inside of the base (1) is provided with a sliding sliding plate (8), and the inside surfaces of the bases (1) on both sides of the sliding plate (8) are fixedly provided with displacement sensors (9).

2. The steel reinforcement post-elongation rate detection device based on multi-point monitoring according to claim 1, characterized in that: The lower end of the supporting rod (6) penetrates the upper end of the sliding plate (8), and the supporting rod (6) and the sliding plate (8) are slidingly connected, and a spring is connected between the supporting rod (6) and the sliding plate (8), the upper end of the supporting rod (6) penetrates the upper surface of the base (1), and the supporting rod (6) and the base (1) are gap fitted.

3. The steel reinforcement post-elongation rate detection device based on multi-point monitoring according to claim 1, characterized in that: The two displacement sensors (9) are oppositely arranged, and a gap is left between the one end of the two displacement sensors (9) and the sliding plate (8).

4. The steel reinforcement post-elongation rate detection device based on multi-point monitoring according to claim 1, characterized in that: The upper end of the base (1) is provided with a positive pressure exhaust structure, and the base (1) avoids the fragments of the broken steel bar from falling into the inside of the base (1) by the way of outward exhaust.

5. The steel reinforcement post-elongation ratio detection device based on multi-point monitoring according to claim 4, characterized in that: The positive pressure exhaust structure comprises a locking rod (10) fixedly arranged on the inside surface of one end of the protective flap (3), one end of the base (1) is provided with a piston cylinder (11) fixedly arranged on the upper surface, one end of the piston cylinder (11) is penetrated by a limiting clamping plate (12), and one end of the limiting clamping plate (12) is fixedly provided with a pressing switch (13), one side of the base (1) is provided with a pressurizing connector (14) fixedly arranged on the upper surface of the base (1), the lower end of the pressurizing connector (14) is penetrated by the upper end of a pressurizing pipe (15), and the lower end of the pressurizing pipe (15) penetrates the inside surface of the base (1).

6. The steel reinforcement post-elongation ratio detection device based on multi-point monitoring according to claim 5, characterized in that: The piston cylinder (11) and the limiting clamping plate (12) are slidingly and frictionally connected, a spring is connected between the piston cylinder (11) and the limiting clamping plate (12), and one end of the piston cylinder (11) is communicated with the pressurizing connector (14).

7. The steel reinforcement post-elongation ratio detection device based on multi-point monitoring according to claim 5, characterized in that: The limiting clamping plate (12) is designed in a C shape, the limiting clamping plate (12) is connected with the locking rod (10) through the C-shaped one end, and the one end of the locking rod (10) is fitted with the pressing switch (13).

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