Shearing force detection device for building spandrel girder

Abstract

The utility model relates to the technical field of bearing beam shearing force detection, in particular to a building bearing beam shearing force detection device which comprises a workbench, supporting legs are fixedly connected to the periphery of the lower end of the workbench, a control keyboard is fixedly connected to the middle of the front end of the workbench, and a reinforcing frame is fixedly connected to the rear portion of the upper end of the workbench. The right portion of the inner upper wall of the reinforcing frame is fixedly connected with two guide rods, the ends, away from the reinforcing frame, of the two guide rods are fixedly connected with the upper end of the workbench together, the left portion of the upper end of the reinforcing frame is fixedly connected with a height adjusting device, and the height adjusting device is slidably connected with the two guide rods. According to the building spandrel girder shearing force detection device, the height adjusting device is guided through the guide rod, the building spandrel girder shearing force detection device can adapt to spandrel girders with different heights, and the shearing force stamping structure can apply shearing force to the fixed spandrel girders, so that the whole building spandrel girder shearing force detection device can detect the spandrel girders with different sizes, and the applicability and the detection accuracy of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shear force detection of load-bearing beams, in particular to a shear force detection device for building load-bearing beams. Background Art

[0002] In the field of construction, load-bearing beams are a key part of the building structure. They shoulder an extremely important mission, which is to transfer the load on the upper part of the building to the lower structure. You must know that once there is a problem with the load-bearing beams, such as being damaged due to excessive shear force, it is very likely to cause the entire building to collapse, which will pose an extremely serious threat to people's life safety and property. Therefore, accurately detecting the shear condition of the load-bearing beams is of paramount importance to ensure building safety. However, there is a big problem with the current existing building load-bearing beam shear force detection device, that is, the device can only fix load-bearing beams of the same size, but when facing load-bearing beams of different sizes, it cannot complete the corresponding fixing operation, and thus cannot detect the shear force of load-bearing beams of different sizes, thereby reducing the applicability of the detection device. Utility Model Content

[0003] The main purpose of the utility model is to provide a shear force detection device for building load-bearing beams, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A shear force detection device for a building load-bearing beam comprises a workbench, wherein the lower end of the workbench is fixedly connected to support legs on all sides, a control keyboard is fixedly connected to the middle part of the front end of the workbench, a reinforcement frame is fixedly connected to the rear end of the upper end of the workbench, two guide rods are fixedly connected to the right part of the inner upper wall of the reinforcement frame, and the ends of the two guide rods away from the reinforcement frame are fixedly connected to the upper end of the workbench, a height adjustment device is fixedly connected to the left part of the upper end of the reinforcement frame, and the height adjustment device is slidably connected to the two guide rods, a shear force stamping structure is fixedly connected to the middle part of the upper end of the reinforcement frame, and the lower part of the shear force stamping structure is located above the middle part of the height adjustment device.

[0006] The top end face of said sliding arm is fixedly provided with a toothed connecting strip which is cooperatively connected with said toothed connecting strip.

[0007] By adopting the above technical solution: the driver cooperates with the semi-threaded rod column, etc., the height of the load-bearing placement frame can be adjusted, which can adapt to load-bearing beams of different heights and expand the detection range. The reinforcement frame and reinforcement block make the structure stable, ensuring that the device can bear reliable load during detection. The long slide groove and rectangular opening facilitate the placement and adjustment of the load-bearing beam, and the load-bearing beam clamping structure cooperates with the load-bearing placement frame to firmly fix the load-bearing beam, ensuring the stable position of the beam during the detection process and improving the accuracy of shear force detection.

[0008] Preferably, the two reinforcement ear blocks are respectively connected to the two guide rods in an interlaced and sliding manner.

[0009] By adopting the above technical solution: the reinforced ear blocks cooperate with the guide rods to stabilize the movement of the load-bearing placement frame and ensure the accuracy of detection.

[0010] Preferably, the load-bearing beam clamping structure includes a servo motor, which is fixedly connected to the right end of the load-bearing placement frame, and the output end of the servo motor passes through the middle of the right end of the load-bearing placement frame and is fixedly connected to a bidirectional threaded column, and the left end of the bidirectional threaded column is movably connected to the load-bearing placement frame through a bearing, and the left and right outer surface parts of the bidirectional threaded column are both threadedly movably connected to a bottom block plate, and the middle parts of the lower ends of the two bottom blocks are fixedly connected to a slider, and the ends of the two bottom blocks away from the slider are fixedly connected to a reinforcing splint, and the upper parts and lower parts of the ends of the two reinforcing splints close to each other are fixedly connected to a rubber plate pad, and the middle parts of the ends of the two reinforcing splints close to each other are fixedly connected to a fiber optic Bragg grating sensor.

[0011] By employing this technical solution, a servo motor drives a bidirectional threaded column, which moves the base plate and reinforcement clamps. This allows for precise clamping of the load-bearing beam, adapting to beams of varying widths. Sliders ensure stable movement of the base plate. Rubber pads increase friction and protect the beam, while fiber Bragg grating sensors measure the strain of the load-bearing beam in real time during shear, accurately capturing shear force data and ensuring effective testing.

[0012] Preferably, the two sliders are slidably connected in the long slide groove, the two bottom blocks are movably inserted in the rectangular opening, and the lower end surfaces of the two reinforcement splints do not contact the upper end surface of the load-bearing frame.

[0013] By adopting the above technical solution: the slider cooperates with the long slide groove, and the bottom plate cooperates with the rectangular opening to ensure stable movement and accurate direction, and the splint does not contact the placement frame to avoid interference.

[0014] Preferably, the load-bearing beam block is located between two reinforcement plates.

[0015] By adopting the above technical solution: the load-bearing beam block is located between two reinforced plywood, which can effectively clamp the beam body, ensuring the stability of the beam body during the detection process, which is conducive to accurate shear force measurement.

[0016] Preferably, the shear stamping structure includes a cylinder, which is fixedly connected to the upper end of the reinforcement frame, and the output end of the cylinder passes through the middle of the upper end of the reinforcement frame and is fixedly connected to a plate seat, and the lower right end of the plate seat is fixedly connected to a pressing knife, and the lower right end of the plate seat is fixedly connected to a shear beam sensor, and the shear beam sensor is located above the right side of the pressing knife.

[0017] By adopting the above technical solution: the cylinder pushes the plate seat, so that the pressure knife applies precise pressure to the load-bearing beam to simulate the shear force, and the shear beam sensor can measure the pressure data in real time and accurately obtain the force that the load-bearing beam bears when it is sheared, providing a reliable basis for evaluating the shear force situation and ensuring the detection accuracy.

[0018] Preferably, the pressing knife is located directly above the load-bearing beam block.

[0019] By adopting the above technical solution: the pressure knife is located directly above the load-bearing beam block, which can accurately apply shear force to the load-bearing beam to ensure the accuracy and effectiveness of the detection.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In the present invention, the height adjustment device composed of a driver and the like can change the height of the load-bearing placement frame and can adapt to load-bearing beams of different heights. The servo motor drives the bidirectional threaded column to drive the bottom plate and the reinforcement clamp to move, which can clamp load-bearing beams of different widths. The slider, long slide groove and rectangular opening ensure stable and accurate movement. The rubber pad can protect the beam body and increase friction. The fiber optic Bragg grating sensor can detect the condition of the beam body in real time. Therefore, in general, it can effectively fix load-bearing beams of different sizes, thereby accurately detecting their shear force, thereby improving the applicability of the detection device.

[0022] 2. In the present invention, the cylinder is firmly connected to the reinforcement frame, and its output end pushes the plate seat so that the press can be accurately positioned above the load-bearing beam block to apply shear force, simulating a real force scenario and ensuring the accuracy of the detection conditions. Thus, while the press applies shear force to the load-bearing beam block, the shear force can be measured in real time, providing accurate and reliable data for evaluating the shear bearing capacity of the load-bearing beam, which helps to accurately judge the quality of the load-bearing beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a shear force detection device for building load-bearing beams of the utility model;

[0024] Figure 2 This is a schematic diagram of the overall structure of a height adjustment device of a shear force detection device for a building load-bearing beam of the present utility model;

[0025] Figure 3 This is an overall schematic diagram of the load-bearing beam clamping structure of a building load-bearing beam shear force detection device of the utility model;

[0026] Figure 4 This is an overall schematic diagram of the shear force punching structure of a shear force detection device for building load-bearing beams of the utility model.

[0027] In the figure: 1. Workbench; 2. Support legs; 3. Control keyboard; 4. Reinforcement frame; 5. Guide rod; 6. Height adjustment device; 8. Shear force stamping structure; 61. Driver; 62. Semi-threaded rod column; 63. Stop block; 64. Reinforcement block; 65. Load-bearing placement frame; 66. Reinforcement ear block; 67. Long slide; 68. Rectangular mouth; 69. Load-bearing beam block; 70. Load-bearing beam clamping structure; 81. Cylinder; 82. Plate seat; 83. Press knife; 84. Shear beam sensor; 701. Servo motor; 702. Bidirectional threaded column; 703. Bottom plate; 704. Slider; 705. Reinforcement splint; 706. Fiber grating sensor; 707. Rubber pad. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0029] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0031] See also Figure 1-4 , the utility model provides a technical solution:

[0032] A shear force detection device for building load-bearing beams includes a workbench 1, the lower end of the workbench 1 is fixedly connected to support legs 2 on all sides, a control keyboard 3 is fixedly connected to the middle of the front end of the workbench 1, and the upper rear end of the workbench 1 is fixedly connected to a reinforcement frame 4. The right part of the inner upper wall of the reinforcement frame 4 is fixedly connected to two guide rods 5, and the two guide rods 5 are fixedly connected to the upper end of the workbench 1 at one end away from the reinforcement frame 4. A height adjustment device 6 is fixedly connected to the left part of the upper end of the reinforcement frame 4, and the height adjustment device 6 is slidably connected to the two guide rods 5. A shear force stamping structure 8 is fixedly connected to the middle part of the upper end of the reinforcement frame 4, and the lower part of the shear force stamping structure 8 is located above the middle part of the height adjustment device 6.

[0033] In this embodiment, the height adjustment device 6 includes a driver 61, which is fixedly connected to the upper end of the reinforcement frame 4. The output end of the driver 61 passes through the upper left part of the driver 61 and is fixedly connected to a semi-threaded rod column 62. The lower end of the semi-threaded rod column 62 is movably connected to the workbench 1 through a bearing. The upper part of the outer surface of the semi-threaded rod column 62 is fixedly connected to a stopper 63. The lower part of the outer surface of the semi-threaded rod column 62 is movably connected to a reinforcement block 64. The right end of the reinforcement block 64 is fixedly connected to a load-bearing frame 65. The load-bearing frame 65 is fixedly connected to the upper part of the outer surface of the semi-threaded rod column 62. The front and rear parts of the right end are fixedly connected with reinforcement ear blocks 66, the middle part of the inner lower wall of the load-bearing frame 65 is provided with a long slide groove 67, the middle part of the upper end of the load-bearing frame 65 is provided with a through rectangular opening 68, the upper end of the load-bearing frame 65 is provided with a load-bearing beam block 69, the middle part of the right end of the load-bearing frame 65 is fixedly connected with a load-bearing beam clamping structure 70, the left part of the load-bearing beam clamping structure 70 is located in the load-bearing frame 65, the two reinforcement ear blocks 66 are respectively connected with the two guide rods 5 through the sliding connection, the load-bearing beam clamping structure 70 includes a servo motor 70 1. The servo motor 701 is fixedly connected to the right end of the load-bearing frame 65. The output end of the servo motor 701 passes through the middle of the right end of the load-bearing frame 65 and is fixedly connected to a two-way threaded column 702. The left end of the two-way threaded column 702 is movably connected to the load-bearing frame 65 through a bearing. The left and right outer surfaces of the two-way threaded column 702 are both threadedly connected to a bottom plate 703. The middle parts of the lower ends of the two bottom plates 703 are fixedly connected to a slider 704. The ends of the two bottom plates 703 away from the slider 704 are fixedly connected to a The two reinforcing plates 705 are fixedly connected to the upper and lower ends of the two reinforcing plates 705 that are close to each other with rubber pads 707, and the middle parts of the ends of the two reinforcing plates 705 that are close to each other are fixedly connected to the fiber optic Bragg grating sensors 706. The two sliders 704 are located in the long slide groove 67 and are slidably connected. The two bottom blocks 703 are movably inserted into the rectangular opening 68. The lower end surfaces of the two reinforcing plates 705 do not contact the upper end surface of the load-bearing placement frame 65, and the load-bearing beam block 69 is located between the two reinforcing plates 705.

[0034] Through the above scheme: the driver 61 drives the semi-threaded rod column 62 to rotate, so that the reinforcement block 64 moves along the semi-threaded rod column 62, thereby adjusting the height of the load-bearing placement frame 65, and the reinforcement ear block 66 slides along the guide rod 5 to ensure stable movement, and the load-bearing beam block 69 is placed on the load-bearing placement frame 65. The servo motor 701 drives the bidirectional threaded column 702 to rotate, so that the bottom block plate 703 drives the reinforcement clamping plate 705 to move and clamp load-bearing beams of different widths in cooperation with the slider 704, the long slide groove 67, and the rectangular opening 68, while the rubber plate pad 707 protects the load-bearing beam and increases friction. The fiber optic Bragg grating sensor 706 can detect in real time, which improves the applicability of the detection device to load-bearing beams of different sizes as a whole.

[0035] In this embodiment, the shear stamping structure 8 includes a cylinder 81, which is fixedly connected to the upper end of the reinforcement frame 4. The output end of the cylinder 81 passes through the middle of the upper end of the reinforcement frame 4 and is fixedly connected to a plate seat 82. The lower right end of the plate seat 82 is fixedly connected to a pressing knife 83. The lower right end of the plate seat 82 is fixedly connected to a shear beam sensor 84, and the shear beam sensor 84 is located above the right side of the pressing knife 83. The pressing knife 83 is located directly above the load-bearing beam block 69.

[0036] Through the above scheme: after the load-bearing beams of different sizes are fixed, the cylinder 81 connected to the reinforcement frame 4 in the shear punching structure 8 pushes the plate seat 82, so that the pressing knife 83 applies shear force to the load-bearing beam block 69 directly below, and at the same time the shear beam sensor 84 can measure the shear force data, so the shear punching structure 8 can accurately apply shear force to the fixed load-bearing beam and measure it, which greatly improves the applicability of the detection device to load-bearing beams of different sizes, and solves the problem that the existing device cannot detect the shear force of different load-bearing beams due to size limitations.

[0037] It should be noted that the present invention is a shear force detection device for a load-bearing beam of a building. During use, first, the workbench 1 serves as the basic platform of the entire device, and the legs 2 around its lower end provide stable support. The control keyboard 3 located in the middle of the front end of the workbench 1 is convenient for the user to operate and control the device. The reinforcement frame 4 is installed at the rear end of the upper end of the workbench 1. The two guide rods 5 on the right side of the upper wall inside are used to provide guidance for the height adjustment device 6. The driver 61 in the height adjustment device 6 drives the semi-threaded rod column 62 to rotate. The lower end of the semi-threaded rod column 62 is movably connected to the workbench 1 through a bearing to ensure rotation flexibility. The stopper 63 on the upper outer surface of the semi-threaded rod column 62 prevents the reinforcement block 64 from detaching when it moves upward. 4 is threadedly connected to the semi-threaded rod column 62. When the semi-threaded rod column 62 rotates, the reinforcement block 64 can move up and down, thereby driving the load-bearing placement frame 65 at its right end to move. The reinforcement ear block 66 of the load-bearing placement frame 65 slides and intersperses with the guide rod 5 to ensure that the load-bearing placement frame 65 remains stable during the lifting process. This height adjustment function can adapt to load-bearing beam blocks 69 of different heights, so that the device can detect load-bearing beams of various specifications. After the load-bearing beam block 69 is placed on the upper end of the load-bearing placement frame 65, it is fixed by the load-bearing beam clamping structure 70. The servo motor 701 in the load-bearing beam clamping structure 70 drives the bidirectional threaded column 702 to rotate. The two ends of the bidirectional threaded column 702 are movably connected to the load-bearing placement frame 65 through bearings to ensure rotation The movement is smooth, and the threads on the left and right parts of the outer surface of the two-way threaded column 702 make the two bottom blocks 703 move towards or in opposite directions when they rotate. The slider 704 in the middle of the lower end of the bottom block 703 slides in the long slide groove 67 in the middle of the lower wall of the load-bearing placement frame 65, and the bottom block 703 moves in the rectangular opening 68 in the middle of the upper end of the load-bearing placement frame 65 to ensure that the bottom block 703 moves stably and in the right direction. The bottom block 703 drives the reinforcing splint 705 to clamp the load-bearing beam block 69. The rubber plate pad 707 at one end of the reinforcing splint 705 can increase the friction between the load-bearing beam block 69, making the clamping more firm and preventing damage to the load-bearing beam surface. The fiber optic grating sensor 706 in the middle of the reinforcing splint 705 can be clamped The relevant information such as the stress condition of the beam can be sensed during the tightening process, which is helpful for subsequent detection and analysis. This clamping structure can adapt to load-bearing beams of different widths to ensure that the position of the load-bearing beam is stable during the detection process. The shear punching structure 8 in the middle of the upper end of the reinforcement frame 4 is used to apply shear force to the load-bearing beam and measure it. The cylinder 81 is fixed on the reinforcement frame 4, and its output end pushes the plate seat 82 to move downward. The pressure knife 83 on the right side of the lower end of the plate seat 82 is located directly above the load-bearing beam block 69, which can apply vertical downward pressure to the load-bearing beam block 69 to simulate the shear force. At the same time, the shear beam sensor 84 located above the right side of the pressure knife 83 can measure in real time the magnitude of the force borne by the load-bearing beam during the shear force application process, providing accurate data for evaluating the shear performance of the load-bearing beam.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A shear force detection device for a building load-bearing beam, comprising a workbench (1), characterized in that: The lower end of the workbench (1) is fixedly connected with legs (2) all around, the front middle of the workbench (1) is fixedly connected with a control keyboard (3), the upper rear of the workbench (1) is fixedly connected with a reinforcement frame (4), the right part of the inner upper wall of the reinforcement frame (4) is fixedly connected with two guide rods (5), the ends of the two guide rods (5) away from the reinforcement frame (4) are fixedly connected to the upper end of the workbench (1), the upper left part of the reinforcement frame (4) is fixedly connected with a height adjustment device (6), the height adjustment device (6) is slidably connected to the two guide rods (5), the upper middle part of the reinforcement frame (4) is fixedly connected with a shear punching structure (8), the lower part of the shear punching structure (8) is located in the upper middle part of the height adjustment device (6).

2. A shear force detection device for a building load-bearing beam according to claim 1, characterized in that: The height adjustment device (6) comprises a driver (61), the driver (61) being fixedly connected to the upper end of the reinforcement frame (4), the output end of the driver (61) passing through the upper left portion of the driver (61) and being fixedly connected to a semi-threaded rod column (62), the lower end of the semi-threaded rod column (62) being movably connected to the workbench (1) via a bearing, the upper portion of the outer surface of the semi-threaded rod column (62) being fixedly connected to a stopper (63), the lower portion of the outer surface of the semi-threaded rod column (62) being movably connected to a reinforcement block (64) through a thread, and the right end of the reinforcement block (64) being fixedly connected to the upper portion of the outer surface of the semi-threaded rod column (62). A load-bearing placement frame (65) is fixedly connected thereto; the front right end and the rear right end of the load-bearing placement frame (65) are fixedly connected thereto with a reinforcing ear block (66); a long sliding groove (67) is provided in the middle of the inner lower wall of the load-bearing placement frame (65); a through rectangular opening (68) is provided in the middle of the upper end of the load-bearing placement frame (65); a load-bearing beam block (69) is placed on the upper end of the load-bearing placement frame (65); a load-bearing beam clamping structure (70) is fixedly connected thereto in the middle of the right end of the load-bearing placement frame (65); and the left portion of the load-bearing beam clamping structure (70) is located in the load-bearing placement frame (65).

3. A shear force detection device for a building load-bearing beam according to claim 2, characterized in that: The two reinforcement ear blocks (66) are respectively connected to the two guide rods (5) in an interlaced and slidable manner.

4. A shear force detection device for a building load-bearing beam according to claim 2, characterized in that: The load-bearing beam clamping structure (70) comprises a servo motor (701), the servo motor (701) is fixedly connected to the right end of the load-bearing placement frame (65), the output end of the servo motor (701) passes through the middle of the right end of the load-bearing placement frame (65) and is fixedly connected to a bidirectional threaded column (702), the left end of the bidirectional threaded column (702) is movably connected to the load-bearing placement frame (65) via a bearing, and the left and right outer surfaces of the bidirectional threaded column (702) are both threadedly movably connected. A bottom plate (703) is connected, the middle parts of the lower ends of the two bottom plates (703) are fixedly connected to a slider (704), the ends of the two bottom plates (703) away from the slider (704) are fixedly connected to a reinforcing clamp (705), the upper parts and the lower parts of the ends of the two reinforcing clamps (705) close to each other are fixedly connected to a rubber plate pad (707), and the middle parts of the ends of the two reinforcing clamps (705) close to each other are fixedly connected to a fiber grating sensor (706).

5. A shear force detection device for a building load-bearing beam according to claim 4, characterized in that: The two sliding blocks (704) are slidably connected together in the long sliding groove (67), the two bottom blocks (703) are movably inserted into the rectangular opening (68), and the lower end surfaces of the two reinforcing clamping plates (705) do not contact the upper end surface of the load-bearing placement frame (65).

6. A shear force detection device for a building load-bearing beam according to claim 2, characterized in that: The load-bearing beam block (69) is located between the two reinforcement clamping plates (705).

7. A shear force detection device for a building load-bearing beam according to claim 1, characterized in that: The shear force punching structure (8) comprises a cylinder (81), the cylinder (81) being fixedly connected to the upper end of the reinforcement frame (4), the output end of the cylinder (81) passing through the middle of the upper end of the reinforcement frame (4) and being fixedly connected to a plate seat (82), the lower right end of the plate seat (82) being fixedly connected to a pressing knife (83), the lower right end of the plate seat (82) being fixedly connected to a shear beam type sensor (84), and the shear beam type sensor (84) being located above the right side of the pressing knife (83).

8. A shear force detection device for a building load-bearing beam according to claim 7, characterized in that: The pressing knife (83) is located directly above the load-bearing beam block (69).

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