Beam-column joint rotation detection device

Abstract

The utility model relates to a kind of beam-column joint corner detection devices, involve shelf structural member test field, including clamping plate frame, clamping plate frame fixedly covers in the crossbeam outside of test sample, the outside of clamping plate frame is fixedly connected with inclination testing device, the stand of test sample both ends is fixedly connected clamp, clamp fixedly connected fixed side plate;The bottom of clamping plate frame is provided with adjusting screw by thread, and the end of adjusting screw passes through clamping plate frame and rests on the crossbeam bottom of test sample;It further includes loading top rod, and loading top rod one end abuts in the crossbeam top of test sample. Only need to change the screwing depth of adjusting screw can be reliably fixed, and different specifications of crossbeam can be adapted. By fixing inclination testing device directly on the front end surface of clamping plate frame, the lever amplification effect caused by traditional cantilever mounting is avoided, which is beneficial to eliminate indirect measurement error. Only need to manually disassemble when maintaining, without professional tools. When single component is damaged, it can be directly replaced.

Description

Technical Field

[0001] This utility model relates to the field of testing shelving structural components, and in particular to a beam-column joint corner detection device. Background Technology

[0002] In warehouse racking systems, beam-column joints are critical components connecting structural stability and operational reliability, and their mechanical properties directly affect the overall safety and durability of the racking system. With the rapid development of the logistics and warehousing industry and the continuous improvement of its intelligent capabilities, higher requirements are being placed on the detection accuracy of semi-rigid angles at beam-column joints. This necessitates an angle detection device that combines high precision, high reliability, and good compatibility to meet the complex and ever-changing structural performance evaluation needs.

[0003] Currently, most existing semi-rigid rotation angle detection devices for beam-column joints in the industry have the following shortcomings: 1. The detection operation is complex, requiring professional personnel to operate, which increases the cost of using the detection equipment. 2. The detection accuracy is low, and the test values ​​deviate significantly from the actual rotation angle.

[0004] Therefore, designing a semi-rigid angle detection device for beam-column joints that is easy to operate, highly accurate, and highly reliable is of great significance for the precise design of rack structural components and the reduction of enterprise production costs. Utility Model Content

[0005] To address the issues of complex operation and low accuracy of existing semi-rigid angle detection devices for beam-column joints, a new angle detection device for beam-column joints is proposed.

[0006] The technical solution of this utility model is as follows: a beam-column joint rotation angle detection device, including a clamping frame, which is fixedly sleeved on the outside of the crossbeam of the test sample, and an inclination testing device is fixedly connected to the outside of the clamping frame. Clamps are fixedly connected to both ends of the column of the test sample, and the clamps are fixedly connected to the fixed side plates. An adjusting screw is threaded through the bottom of the clamping frame, and one end of the adjusting screw passes through the clamping frame and abuts against the bottom of the crossbeam of the test sample. It also includes a loading rod, one end of which abuts against the top of the crossbeam of the test sample.

[0007] Preferably, the test specimen has a loading plate on the top of the crossbeam, and one end of the loading rod abuts against the loading plate.

[0008] Preferably, the fixed side plate is provided with multiple T-shaped slots on the side near the clamp, and the T-shaped slots are horizontally arranged; the clamp is fixedly connected to the T-shaped slots.

[0009] Preferably, the clamp frame is fixedly connected to the tilt angle testing device by bolts.

[0010] Preferably, the two ends of the column of the test sample are fixedly connected to the clamp by bolts.

[0011] Preferably, the clamp is fixedly connected to the fixed side plate by bolts.

[0012] Preferably, the clamp is fixedly connected to the T-slot by bolts.

[0013] The beneficial effects of this utility model are as follows: This utility model provides a beam-column joint rotation angle detection device. For beams of different sizes and specifications, reliable fixation can be achieved simply by changing the screw depth of the adjusting screw, adapting to beams of different specifications and solving the problem of traditional rigid clamps requiring customization. By directly fixing the tilt angle testing device to the front face of the clamping frame, the lever amplification effect caused by traditional cantilever installation is avoided, which helps to eliminate indirect measurement errors. All connection points use standardized bolts and nuts, requiring only manual disassembly for maintenance without the need for professional tools. The clamping frame and tilt angle testing device are independent modules, and if a single component is damaged, it can be directly replaced, resulting in relatively low experimental and maintenance costs. Attached Figure Description

[0014] Figure 1 This is a perspective view of the beam-column joint rotation detection device of this utility model;

[0015] Figure 2 This is a perspective view of the clamping frame of this utility model;

[0016] Figure 3 This is a perspective view of the test sample and fixture of this utility model;

[0017] Figure 4 This is a perspective view of the clamp and fixed side plate of this utility model.

[0018] The component names corresponding to the various reference numerals in the diagram are as follows:

[0019] 1. Clamping frame; 11. Adjusting screw; 2. Inclination testing device; 3. Loading rod; 31. Loading plate; 4. Fixture; 5. Fixed side plate; 51. T-slot; 6. Test sample. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0021] refer to Figure 1 , 2As shown in the embodiment of this application, a beam-column joint rotation angle detection device is disclosed, including a clamping frame 1. The clamping frame 1 is fixedly sleeved on the outside of the crossbeam of the test sample 6. An inclination angle testing device 2 is fixedly connected to the outside of the clamping frame 1 by bolts. The inclination angle testing device 2 is an inclination angle sensor. By directly fixing the inclination angle testing device 2 to the outside of the clamping frame 1, the lever amplification effect caused by the traditional cantilever installation is avoided, which helps to eliminate indirect measurement errors.

[0022] The two ends of the column of the test sample 6 are fixedly connected to the clamp 4 by bolts, and the clamp 4 is fixedly connected to the side plate 5 by bolts;

[0023] An adjusting screw 11 is threaded through the bottom of the clamping frame 1. One end of the adjusting screw 11 passes through the clamping frame 1 and abuts against the bottom of the crossbeam of the test sample 6. In this embodiment, the clamping frame 1 has two adjusting screws 11. Tightening the adjusting screw 11 makes it make tight contact with the lower surface of the crossbeam of the test sample 6 and applies a preload, thereby fixing the clamping frame 1. For crossbeams of different sizes, reliable fixing can be achieved simply by changing the screw depth.

[0024] refer to Figure 1 , 3 As shown, it also includes a loading rod 3, one end of which abuts against the top of the crossbeam of the test specimen 6;

[0025] The test specimen 6 has a loading plate 31 on the top of the crossbeam, and one end of the loading rod 3 abuts against the loading plate 31. The loading rod 3 applies pressure to the test specimen 6 by applying pressure to the loading plate 31. When the loading rod 3 applies a load, the node will rotate to a certain extent. By calibrating the range of the tilt angle testing device 2, that is, converting the electrical signal of the tilt angle sensor into the actual tilt angle in radians, the numerical detection of the rotation angle of the semi-rigid node can be realized.

[0026] refer to Figure 4 As shown, the fixed side plate 5 is provided with multiple T-shaped slots 51 on the side near the clamp 4. The T-shaped slots 51 are horizontally arranged. The clamp 4 is fixedly connected to the T-shaped slots 51 by bolts. By connecting with different T-shaped slots 51, the spacing between the clamps 4 can be adjusted to accommodate test sample 6 columns of different lengths.

[0027] The specific working principle is as follows:

[0028] The clamp frame 1 is directly fitted onto the surface of the test sample 6. An adjusting screw 11 is installed at the bottom of the clamp frame 1. Tightening the adjusting screw 11 ensures tight contact between the clamp frame 1 and the lower surface of the crossbeam of the test sample 6, applying a preload and thus reliably fixing the clamp frame 1. For crossbeams of different sizes, only the screw depth of the screw 11 needs to be adjusted to achieve the desired fixation. A mounting hole is provided on the front end face of the clamp frame 1. The tilt testing device 2 is rigidly fixed to this mounting hole using mounting bolts, ensuring no relative displacement between the sensor and the frame and guaranteeing the consistency of the measurement reference.

[0029] To accurately measure the rotation angle of a semi-rigid node, the range calibration of the tilt angle testing device 2, i.e., the tilt angle sensor, needs to be completed beforehand (i.e., establishing a linear conversion relationship between the sensor's output electrical signal and the actual tilt angle in radians). A pressure load is applied to one side of the test specimen 6 (achieved through the loading rod 3), causing the node to rotate. During this process, the tilt angle sensor continuously collects rotation angle data and outputs the actual rotation angle value in real time based on the calibration parameters, enabling accurate detection of changes in the node's rotation angle.

[0030] The beneficial effects are:

[0031] This utility model discloses a beam-column joint rotation angle detection device. For beams of different sizes and specifications, reliable fixation can be achieved simply by changing the screw depth of the adjusting screw 11, adapting to beams of various specifications and solving the problem of requiring customization of traditional rigid clamps. By directly fixing the tilt angle testing device 2 to the front face of the clamping frame 1, the lever amplification effect caused by traditional cantilever installation is avoided, which helps to eliminate indirect measurement errors. All connection points use standardized bolts and nuts, requiring only manual disassembly for maintenance without the need for professional tools. The clamping frame 1 and the tilt angle testing device 2 are independent modules; if a single component is damaged, it can be directly replaced, resulting in relatively low experimental and maintenance costs.

[0032] It should be noted that the terms "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. "A plurality of" means two or more. "Installed," "connected," and "joined" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from this utility model, and these improvements and additions should also be considered within the protection scope of this utility model. Any modifications, alterations, and equivalent changes made by those skilled in the art without departing from the spirit and scope of this utility model using the disclosed technical content are equivalent embodiments of this utility model. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of this utility model are still within the scope of the technical solution of this utility model.

Claims

1. A beam-column joint rotation detection device, characterized in that, The test specimen (6) includes a clamping frame (1), which is fixedly fitted on the outside of the crossbeam of the test specimen (6). An inclination testing device (2) is fixedly connected to the outside of the clamping frame (1). The two ends of the column of the test specimen (6) are fixedly connected to clamps (4), and the clamps (4) are fixedly connected to the fixed side plate (5). An adjusting screw (11) is threaded through the bottom of the clamping frame (1). One end of the adjusting screw (11) passes through the clamping frame (1) and abuts against the bottom of the crossbeam of the test specimen (6). The test specimen (6) also includes a loading rod (3), one end of which abuts against the top of the crossbeam of the test specimen (6).

2. The beam-column joint rotation detection device according to claim 1, characterized in that, The test specimen (6) has a loading plate (31) on the top of the crossbeam, and one end of the loading rod (3) abuts against the loading plate (31).

3. The beam-column joint rotation detection device according to claim 1, characterized in that, The fixed side plate (5) is provided with multiple T-shaped slots (51) on the side near the clamp (4), and the T-shaped slots (51) are horizontally arranged; the clamp (4) is fixedly connected to the T-shaped slots (51).

4. The beam-column joint rotation detection device according to claim 1, characterized in that, The clamp frame (1) is fixedly connected to the tilt angle testing device (2) by bolts.

5. The beam-column joint rotation detection device according to claim 1, characterized in that, The two ends of the column of the test specimen (6) are fixedly connected to the clamp (4) by bolts.

6. The beam-column joint rotation detection device according to claim 1, characterized in that, The clamp (4) is fixedly connected to the fixed side plate (5) by bolts.

7. The beam-column joint rotation detection device according to claim 3, characterized in that, The clamp (4) is fixedly connected to the T-slot (51) by bolts.

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