A detection device for construction engineering

Abstract

This utility model discloses a testing device for building engineering, relating to the field of building engineering testing technology. It includes a testing frame and a hydraulic testing unit, the hydraulic testing unit being fixedly connected to the upper end of the testing frame. A testing mechanism is disposed on the surface of the testing frame. The testing mechanism includes four connecting blocks fixedly connected to both sides of the testing frame, with the four connecting blocks forming pairs. A rotating shaft is rotatably connected to the ends of two connecting blocks that are close to each other. A bearing tube is fixedly connected between the two rotating shafts, and reinforcing bars are inserted inside the two bearing tubes, with both ends of the reinforcing bars located inside the two bearing tubes respectively. A connecting protrusion is fixedly connected to the surface of each connecting block, and a spiral spring is fixedly sleeved on the surface of each rotating shaft. The outer ring of the spiral spring is fixedly connected to the connecting protrusion, thus solving the problem of indentation caused by the sharp angle between the reinforcing bars and the support, which affects the accuracy of the testing results.

Description

Technical Field

[0001] This utility model relates to the field of building engineering testing technology, and more specifically, to a testing device for building engineering. Background Technology

[0002] Testing devices for construction engineering are mechanical equipment used to test the performance of reinforcing bars. They can perform compression and bending tests and automatically determine whether cracks or fractures occur in the reinforcing bars under standard bending diameter and angle, thereby verifying whether their strength, plasticity and seismic performance meet the design and specification requirements, and providing reliable quality information for the construction site.

[0003] When using testing equipment to inspect the performance of reinforcing bars, pressure needs to be applied to the bars to perform bending operations. This is to check whether cracks or fractures appear in the reinforcing bars under standard bending mandrel diameters and angles. However, the existing testing methods usually involve placing the reinforcing bars on a support and then bending them. During the bending process, the two ends of the reinforcing bars are inclined, and the reinforcing bars form an acute angle with the support. The edge of the support cuts into the surface of the reinforcing bars like a knife blade, creating indentations. These indentations become stress concentration points, causing the reinforcing bars to bend prematurely or even crack at the indentations before reaching the specified pressure and bending angle, which seriously affects the accuracy of the test results. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a testing device for building engineering, so as to solve the problem that the sharp angle between the steel bar and the support causes indentation, which affects the accuracy of the test results.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A testing device for construction engineering includes a test frame and a hydraulic testing unit. The hydraulic testing unit is fixedly connected to the upper end of the test frame. A testing mechanism is disposed on the surface of the test frame. The testing mechanism includes four connecting blocks fixedly connected to both sides of the test frame. The four connecting blocks are arranged in pairs. A rotating shaft is rotatably connected to the end of each pair of connecting blocks that is close to each other. A bearing tube is fixedly connected between the two rotating shafts. Reinforcing bars are inserted inside the two bearing tubes, with the two ends of the reinforcing bars located inside the two bearing tubes respectively.

[0007] Furthermore, a connecting protrusion is fixedly connected to the surface of the connecting block, and a spiral spring is fixedly sleeved on the surface of the rotating shaft, with the outer ring of the spiral spring fixedly connected to the connecting protrusion.

[0008] Furthermore, an abutment plate is provided inside the bearing tube, and screws are rotatably connected to the surface of the abutment plate.

[0009] Furthermore, the screw has a sliding block threaded onto its surface, and the bearing tube has a groove on its surface, with the sliding block slidingly connected to the inside of the groove.

[0010] Furthermore, a connecting frame is fixedly connected to the bottom end of the hydraulic detection unit, and a pressure wheel is rotatably connected to the surface of the connecting frame.

[0011] Furthermore, support blocks are fixedly connected to both ends of the front surface of the test frame. A first screw and a second screw are respectively threaded into the interior of the two support blocks. The thread directions of the first screw and the second screw are opposite. Push plates are threaded onto the surfaces of the first screw and the second screw. An abutment rod is fixedly connected to one end of each push plate near the test frame.

[0012] Furthermore, the first screw and the second screw are fixedly connected at their close ends, and a rotating handle is fixedly connected at the connection between the first screw and the second screw. The abutment rod is inserted into the interior of the bearing tube.

[0013] Furthermore, guide rods are inserted inside the push plate, and the ends of the two guide rods that are close to each other are fixedly connected to the two sides of the test frame, respectively.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) In this scheme, both ends of the steel bar are in an inclined state during the bending process, which in turn drives the two bearing pipes to tilt synchronously, so that the steel bar and the bearing pipe are always in close contact without sharp angles. This avoids obvious indentations during the bending process of the steel bar, which would affect the accuracy of the test results. Furthermore, if the steel bar needs to be bent in the opposite direction, the bent steel bar can be directly inserted into the two bearing pipes without the need for additional positioning devices, which improves the convenience and practicality of the device.

[0016] (2) This scheme allows the two abutment rods to be inserted into the bearing pipe simultaneously through the first screw and the second screw, so that the middle part of the steel bar is located directly below the hydraulic detection unit. This can prevent the steel bar from shifting during the detection process, which would lead to uneven pressure and affect the accuracy of the detection results. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the structure of the testing mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the bearing tube part of this utility model;

[0020] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0021] Explanation of the labels in the diagram:

[0022] 1. Test fixture; 2. Hydraulic testing unit;

[0023] 301. Pressure roller; 302. Bearing tube; 303. Connecting frame; 304. Connecting block; 305. Slide groove; 306. Rotating shaft; 307. Scroll spring; 308. Connecting protrusion; 309. Abutment plate; 310. Sliding block; 311. Screw;

[0024] 401. First screw; 402. Second screw; 403. Rotary handle; 404. Support block; 405. Push plate; 406. Guide rod; 407. Abutment rod. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-4 A testing device for construction engineering includes a test frame 1 and a hydraulic testing unit 2, the hydraulic testing unit 2 being fixedly connected to the upper end of the test frame 1. A testing mechanism is disposed on the surface of the test frame 1. The testing mechanism includes four connecting blocks 304 fixedly connected to both sides of the test frame 1. The four connecting blocks 304 are arranged in pairs. A rotating shaft 306 is rotatably connected to the ends of two connecting blocks 304 that are close to each other. A bearing tube 302 is fixedly connected between the two rotating shafts 306. Reinforcing bars are inserted inside the two bearing tubes 302, with both ends of the reinforcing bars located inside the two bearing tubes 302 respectively.

[0027] The connecting block 304 has a connecting protrusion 308 fixedly connected to its surface. The rotating shaft 306 has a spiral spring 307 fixedly sleeved on its surface. The outer ring of the spiral spring 307 is fixedly connected to the connecting protrusion 308. The bearing tube 302 has an abutment plate 309 inside. The abutment plate 309 has a screw 311 rotatably connected to its surface. The screw 311 has a sliding block 310 threaded on its surface. The bearing tube 302 has a sliding groove 305 on its surface. The sliding block 310 is slidably connected to the inside of the sliding groove 305. The bottom end of the hydraulic detection unit 2 has a connecting frame 303 fixedly connected to its bottom end. The connecting frame 303 has a pressure wheel 301 rotatably connected to its surface. The pressure wheel 301 can reduce the shear force on the steel bar when bending it.

[0028] In this test frame 1, support blocks 404 are fixedly connected to both ends of the front surface. A first screw 401 and a second screw 402 are threadedly inserted into the interior of the two support blocks 404, respectively. The thread directions of the first screw 401 and the second screw 402 are opposite. Push plates 405 are threadedly fitted onto the surfaces of the first screw 401 and the second screw 402. Abutment rods 407 are fixedly connected to the ends of the two push plates 405 near the test frame 1. The ends of the first screw 401 and the second screw 402 that are close to each other are fixedly connected. A handle 403 is fixedly connected at the connection between the first screw 401 and the second screw 402. The abutment rods 407 are inserted into the interior of the bearing tube 302. Guide rods 406 are inserted into the interior of the push plates 405. The ends of the two guide rods 406 that are close to each other are fixedly connected to the two sides of the test frame 1, respectively.

[0029] By adopting the above technical solution, when inspecting reinforcing bars, the reinforcing bars are inserted into two bearing tubes 302, with both ends of the reinforcing bars located inside the two bearing tubes 302 respectively. Then, the operator drives the rotating handle 403 to rotate, which in turn drives the first screw 401 and the second screw 402 to rotate. Since the threads of the first screw 401 and the second screw 402 are opposite, the two push plates 405 can be driven to move closer to each other, thereby causing the two abutting rods 407 to be inserted into the bearing tubes 302 simultaneously, until the two abutting rods 407 abut against both ends of the reinforcing bar, at which point the middle of the reinforcing bar is exactly positioned... Located directly below the hydraulic testing unit 2, it prevents the reinforcing bar from shifting during the testing process, thus avoiding uneven pressure and affecting the accuracy of the test results. Then, by rotating the screw 311, the position of the abutment plate 309 is adjusted so that the abutment plate 309 abuts against the surface of the reinforcing bar, which can longitudinally position the reinforcing bar to prevent it from swaying up and down and causing the two ends to be tilted up and down, affecting the subsequent test results. Furthermore, if it is necessary to bend the reinforcing bar in the opposite direction, the bent reinforcing bar can be directly inserted into the two bearing pipes 302 without the need for an additional positioning device, which improves the convenience and practicality of the device.

[0030] After the preparation work for placing the reinforcing bars is completed, the hydraulic detection unit 2 drives the pressure roller 301 downwards, pressing it onto the reinforcing bars and bending them to the specified angle. During the bending process, both ends of the reinforcing bars are tilted, causing the two bearing tubes 302 to tilt synchronously. This avoids obvious indentations during the bending process, which could affect the accuracy of the test results. After the reinforcing bars are tested, they are removed from the bearing tubes 302. At this point, the spiral spring 307 can be used to return the two bearing tubes 302 to a horizontal state for the next test.

[0031] Instructions for use: First, insert the reinforcing bar into the two bearing pipes 302, so that both ends of the reinforcing bar are located inside the two bearing pipes 302 respectively;

[0032] Next, by rotating screw 311, the abutment plate 309 is pressed against the surface of the reinforcing bar to longitudinally position the reinforcing bar;

[0033] Next, the workers drive the handle 403 to rotate, so that the two abutting rods 407 abut against the two ends of the steel bar respectively;

[0034] Subsequently, the reverse drive handle 403 is reversed to remove the abutment rod 407 from the bearing tube 302;

[0035] Finally, the hydraulic testing unit 2 drives the pressure roller 301 to press on the steel bar, bending the steel bar to a specified angle, thereby testing the steel bar.

[0036] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A testing device for building engineering, comprising a test frame (1) and a hydraulic testing unit (2), wherein the hydraulic testing unit (2) is fixedly connected to the upper end of the test frame (1), characterized in that: The testing mechanism is disposed on the surface of the test frame (1). The testing mechanism includes four connecting blocks (304) fixedly connected to both sides of the test frame (1). The four connecting blocks (304) are in pairs. The ends of the two connecting blocks (304) that are close to each other are rotatably connected to a rotating shaft (306). A bearing tube (302) is fixedly connected between the two rotating shafts (306). A steel bar is inserted inside the two bearing tubes (302). The two ends of the steel bar are respectively located inside the two bearing tubes (302).

2. The testing device for building engineering according to claim 1, characterized in that: The surface of the connecting block (304) is fixedly connected to the connecting protrusion (308), and the surface of the rotating shaft (306) is fixedly sleeved with a spiral spring (307), the outer ring of the spiral spring (307) being fixedly connected to the connecting protrusion (308).

3. The testing device for building engineering according to claim 1, characterized in that: The bearing tube (302) is provided with an abutment plate (309) inside, and the surface of the abutment plate (309) is rotatably connected with screws (311).

4. The testing device for building engineering according to claim 3, characterized in that: The screw (311) has a threaded sliding block (310) on its surface, and the bearing tube (302) has a groove (305) on its surface. The sliding block (310) is slidably connected to the inside of the groove (305).

5. A testing device for building engineering according to claim 1, characterized in that: The bottom end of the hydraulic detection unit (2) is fixedly connected to a connecting frame (303), and a pressure wheel (301) is rotatably connected to the surface of the connecting frame (303).

6. The testing device for building engineering according to claim 1, characterized in that: Support blocks (404) are fixedly connected to both ends of the front surface of the test frame (1). A first screw (401) and a second screw (402) are threaded into the interior of the two support blocks (404). The threads of the first screw (401) and the second screw (402) are opposite. Push plates (405) are threaded on the surfaces of the first screw (401) and the second screw (402). Abutment rods (407) are fixedly connected to the end of the two push plates (405) near the test frame (1).

7. A testing device for building engineering according to claim 6, characterized in that: The first screw (401) and the second screw (402) are fixedly connected at their close ends. A handle (403) is fixedly connected at the connection between the first screw (401) and the second screw (402). The abutment rod (407) is inserted into the interior of the bearing tube (302).

8. A testing device for building engineering according to claim 6, characterized in that: The push plate (405) is equipped with guide rods (406), and the two guide rods (406) are fixedly connected to the two sides of the test frame (1) at their close ends.

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