Testing device for detecting breaking strength of concrete

Abstract

The utility model discloses a test device for detecting the flexural strength of concrete, which comprises a detection frame, two slide bars are fixedly connected inside the detection frame, one ends of the two slide bars are jointly and movably connected with a supporting seat, two ends of the top of the supporting seat are movably connected with clamping seats, two ends of the clamping seats are fixedly connected with lifting lugs, and the lifting lugs are movably connected with the top of the supporting seat. The device has the beneficial effects that a concrete core to be detected is erected on the two clamping seats at first, then the clamping frame is matched with the clamping seats to clamp and fix the concrete core by rotating the locking bolts, and then the semicircular stamping block is driven to descend by opening the stamping cylinder; the semicircular stamping block can stamp the outer surface of the concrete core, the force generated by stamping can be detected through the arranged pressure sensor, and the force borne by the concrete core when the concrete core is bent and damaged is penetrated and recorded, so that the bending strength of the concrete core can be conveniently judged.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete detection, in particular to a test device for detecting the flexural strength of concrete. Background Art

[0002] Concrete refers to the general term for engineering composite materials in which aggregate is cemented into a whole by a cementitious material. The term "concrete" usually refers to cement concrete, which uses cement as the cementitious material, sand and stone as the aggregate; it is mixed with water in a certain proportion and obtained by stirring, and is also called ordinary concrete, which is widely used in civil engineering.

[0003] After the concrete is poured, it is necessary to detect its strength so as to judge the engineering quality after the concrete is poured. Therefore, there is an urgent need for a test device for detecting the flexural strength of concrete to detect the concrete. Content of the Utility Model

[0004] To solve the above problems, the utility model provides a test device for detecting the flexural strength of concrete, and the utility model is realized through the following technical solutions.

[0005] A test device for detecting the flexural strength of concrete includes a detection frame. Two sliding rods are fixedly connected inside the detection frame. One ends of the two sliding rods are jointly movably connected to a support seat. Both ends of the top of the support seat are movably connected with clamping seats. Both ends of the clamping seats are fixedly connected with lifting lugs. A clamping frame is jointly movably connected to the two lifting lugs. A locking bolt is connected through the bottom of the clamping frame. A pressure sensor is fixedly connected to the top of the clamping seat. A punching cylinder is fixedly connected to the top end inside the detection frame. The telescopic end of the punching cylinder is fixedly connected with a semi-circular punching block.

[0006] Further, the top of the clamping seat is an arc surface.

[0007] Further, the clamping frame is sleeved on the support seat. One end of the locking bolt passing through the bottom of the clamping frame is pressed against the bottom of the support seat, and the clamping frame is in threaded cooperation with the locking bolt.

[0008] Further, a servo motor is fixedly connected to the rear side of the detection frame. The output shaft of the servo motor is fixedly connected with a lead screw. One end of the lead screw passing through the detection frame is in threaded cooperation with the support seat.

[0009] Further, a PLC controller is fixedly connected to the front side of the detection frame. The punching cylinder, the servo motor and the pressure sensor are all electrically connected to the PLC controller through the provided wires.

[0010] Further, four support columns are fixedly connected to the bottom of the detection frame.

[0011] The beneficial effects of the present utility model are as follows: During the operation of the device, first, the concrete core to be tested is placed on two clamping seats. Then, by rotating the locking bolt, the clamping frame cooperates with the clamping seat to clamp and fix the concrete core. Next, by opening the punching cylinder, the semi-circular punching block is driven to descend. The semi-circular punching block can punch the outer surface of the concrete core, and the force generated by the punching can be detected by the pressure sensor provided, so as to penetrate and record the force borne when the concrete core is bent and damaged, thereby facilitating the judgment of the flexural strength of the concrete core. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the present utility model, the following will briefly introduce the drawings required for the description of the specific implementation manners. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0013] Figure 1 : Structural schematic diagram of a test device for detecting the flexural strength of concrete according to the present utility model;

[0014] Figure 2 : Side view of the present utility model;

[0015] Figure 3 : Connection schematic diagram of the support seat and the clamping seat of the present utility model;

[0016] Figure 4 : Structural schematic diagram of the clamping seat of the present utility model.

[0017] The reference numerals are as follows:

[0018] 1. Detection frame; 11. Slide bar;

[0019] 2. Support seat;

[0020] 3. Clamping seat; 31. Lifting lug; 32. Clamping frame; 33. Locking bolt; 34. Pressure sensor;

[0021] 4. Punching cylinder; 41. Semi-circular punching block;

[0022] 5. Servo motor; 51. Lead screw;

[0023] 6. PLC controller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] As Figures 1-4 shown, the present invention has the following specific embodiments.

[0026] Embodiment:

[0027] A test device for detecting the flexural strength of concrete, including a detection frame 1. Two sliding rods 11 are fixedly connected inside the detection frame 1. One end of the two sliding rods 11 is jointly movably connected to a support seat 2. Both ends of the top of the support seat 2 are movably connected to a clamping seat 3. Both ends of the clamping seat 3 are fixedly connected with lifting lugs 31. A clamping frame 32 is jointly movably connected to the two lifting lugs 31. A locking bolt 33 is connected through the bottom of the clamping frame 32. A pressure sensor 34 is fixedly connected to the top of the clamping seat 3. A punching cylinder 4 is fixedly connected to the top end inside the detection frame 1. The telescopic end of the punching cylinder 4 is fixedly connected with a semi-circular punching block 41.

[0028] By adopting the above technical solution, when using the device, first place the concrete core A to be tested on the two clamping seats 3, and then rotate the locking bolt 33 to make the clamping frame 32 cooperate with the clamping seat 3 to clamp and fix the concrete core A. Then, drive the semi-circular punching block 41 to descend by opening the punching cylinder 4. The semi-circular punching block 41 can punch the outer surface of the concrete core A. The force generated by the punching can be detected by the set pressure sensor 34, and the force borne when the concrete core A is bent and damaged can be penetrated and recorded, so as to facilitate judging the flexural strength of the concrete core A.

[0029] Specifically, the top of the clamping seat 3 is an arc surface.

[0030] By adopting the above technical solution, the design of the arc surface at the top of the clamping seat 3 can place the concrete core A on it for positioning and prevent the concrete core A from slipping during the fixing process.

[0031] Specifically, the clamping frame 32 is sleeved on the support seat 2. One end of the locking bolt 33 passing through the bottom of the clamping frame 32 presses against the bottom of the support seat 2, and the clamping frame 32 is in threaded cooperation with the locking bolt 33.

[0032] By adopting the above technical solution, the concrete core A to be measured can be erected on the two clamping seats 3. By rotating the locking bolt 33, the clamping frame 32 cooperates with the clamping seat 3 to clamp and fix the concrete core A. Among them, the distance between the two clamping seats 3 can be adjusted to be suitable for clamping and fixing concrete cores A with different thicknesses and lengths.

[0033] Specifically, a servo motor 5 is fixedly connected to the rear side of the detection frame 1. The output shaft of the servo motor 5 is fixedly connected with a lead screw 51. One end of the lead screw 51 passing through the detection frame 1 is in threaded cooperation with the support seat 2.

[0034] By adopting the above technical solution, the provided servo motor 5 can drive the lead screw 51 to rotate, and the lead screw 51 can drive the support seat 2 in threaded cooperation to slide on the two slide bars 11, so as to facilitate the adjustment of the displacement of the concrete core A clamped on the support seat 2.

[0035] Specifically, a PLC controller 6 is fixedly connected to the front side of the detection frame 1. The stamping cylinder 4, the servo motor 5 and the pressure sensor 34 are all electrically connected to the PLC controller 6 through the provided wires.

[0036] By adopting the above technical solution, the provided PLC controller 6 can control the operation of the stamping cylinder 4, the servo motor 5 and the pressure sensor 34 respectively. At the same time, the pressure data detected by the pressure sensor 34 can be displayed through the display screen on the PLC controller 6, which is convenient for observing the force received by the concrete core A when bearing pressure, so as to detect the flexural strength of the concrete.

[0037] Specifically, four support columns are fixedly connected to the bottom of the detection frame 1.

[0038] By adopting the above technical solution, the four support columns arranged at the bottom of the detection frame 1 can support and place it on the detection table.

[0039] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to only the specific implementation manners. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art in the technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A testing device for testing the flexural strength of concrete, comprising a testing frame (1), characterized in that: Two sliding rods (11) are fixedly connected inside the detection frame (1), one end of the two sliding rods (11) is movably connected to a support seat (2), both ends of the top of the support seat (2) are movably connected to a clamping seat (3), both ends of the clamping seat (3) are fixedly connected to lifting ears (31), the two lifting ears (31) are movably connected to a clamping frame (32), the bottom of the clamping frame (32) is connected through a locking bolt (33), the top of the clamping seat (3) is fixedly connected to a pressure sensor (34), the top of the detection frame (1) is fixedly connected to a stamping cylinder (4), and the telescopic end of the stamping cylinder (4) is fixedly connected to a semicircular stamping block (41).

2. A test device for detecting the flexural strength of concrete according to claim 1, characterized in that: The top of the clamping seat (3) is an arc-shaped surface.

3. A test device for detecting the flexural strength of concrete according to claim 1, characterized in that: The clamping frame (32) is sleeved on the support seat (2), one end of the locking bolt (33) passes through the bottom of the clamping frame (32) and is pressed against the bottom of the support seat (2), and the clamping frame (32) and the locking bolt (33) are threadedly matched.

4. A test device for detecting the flexural strength of concrete according to claim 1, characterized in that: A servo motor (5) is fixedly connected to the rear side of the detection frame (1), and a screw rod (51) is fixedly connected to the output shaft of the servo motor (5). One end of the screw rod (51) passes through the detection frame (1) and is threadedly engaged with the support seat (2).

5. A test device for detecting the flexural strength of concrete according to claim 4, characterized in that: The front side of the detection frame (1) is fixedly connected to a PLC controller (6), and the punching cylinder (4), the servo motor (5) and the pressure sensor (34) are all electrically connected to the PLC controller (6) via provided wires.

6. A test device for detecting the flexural strength of concrete according to claim 1, characterized in that: Four supporting columns are fixedly connected to the bottom of the detection frame (1).

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