Laser calibration type foldable beckman beam deflection detection device

Abstract

This utility model discloses a laser-calibrated foldable Benkelman beam deflection detection device, comprising several measuring bases, a retractable plate, a measuring rod, and a display device, and further including a fixing and storage mechanism. The fixing and storage mechanism includes fixing groups disposed at the connection point of two of the measuring bases. Each fixing group consists of two fixing frames arranged vertically. The top outer wall of the fixing frame located above the measuring base has an opening, and the top outer wall of the fixing frame located below the measuring base has a fixing rod. The top end of the fixing rod passes through the opening, and spring pins are provided on both outer walls of the fixing rod. This utility model provides a laser-calibrated foldable Benkelman beam deflection detection device. This laser-calibrated foldable Benkelman beam deflection detection device disclosed in this utility model has the technical advantages of convenient storage and portability.

Description

Technical Field

[0001] This utility model relates to the field of Benkelman beam deflection detection, and in particular to a laser-calibrated foldable Benkelman beam deflection detection device. Background Technology

[0002] The Beckman beam was invented in the early 20th century by American engineer Frank Beckman, initially for testing the deflection of asphalt pavements. Its principle is based on lever amplification, using a mechanical pointer to read the vertical deformation of the pavement under standard axle load. After the 1980s, electronic components such as strain gauges and displacement sensors were integrated into the Beckman beam, enabling digital readings and reducing human error. With the maturation of laser technology, non-contact measurement began to be applied in engineering. Laser interferometers were used to calibrate the Beckman beam, improving accuracy to the micrometer level, far exceeding traditional mechanical calibration.

[0003] However, traditional laser-calibrated foldable Beckman beam deflection testing devices may be stored separately during transportation due to their structure. The foldable structure usually relies on mechanical connections such as hinges and slide rails, which may result in poor sealing and inconvenience in handling during field operations. Furthermore, after prolonged use, some loosening or chain wear may occur.

[0004] For example, when taking measurements outdoors, the size of the material makes it inconvenient to load and unload in a vehicle with limited space. In the folded state, the bracket or hinge point may suffer from metal fatigue and loosening due to long-term stress concentration or repeated bending, affecting the structural stability after unfolding. Utility Model Content

[0005] This utility model discloses a laser-calibrated foldable Beckman beam deflection detection device, which aims to solve the technical problems of traditional laser-calibrated foldable Beckman beam deflection detection devices, which may be stored separately during transportation due to structural reasons. The foldable structure usually relies on mechanical connections such as hinges and slide rails, which may have poor sealing and be inconvenient to handle in the field. Furthermore, after prolonged use, some loosening or chain wear may occur.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A laser-calibrated foldable Beckman beam deflection testing device includes several measuring bases, a retractable plate, a measuring rod, and a display device, and further includes a fixing and storage mechanism. The fixing and storage mechanism includes fixing groups located at the connection point of two measuring bases. Each fixing group consists of two fixing frames arranged vertically. The top outer wall of the fixing frame located above the measuring base has an opening, and the top outer wall of the fixing frame located below the measuring base has a fixing rod. The top of the fixing rod passes through the opening, and spring pins are provided on both outer walls of the fixing rod. The fixing rod is connected to the measuring base located above the measuring base via the spring pins. The fixing frame is positioned relative to the fixing group. Each of the two outer walls of the fixing group is provided with a first fixing plate and a first fixing groove. The first fixing plate and the first fixing groove located on the same fixing group are centrally symmetrically arranged. The pull-out plate is located on one side of one of the fixing groups. The inner wall of one side of the pull-out plate is provided with a first fixing opening. The outer wall of one side of the pull-out plate is provided with a second fixing plate and a second fixing groove. The second fixing plate and the second fixing groove are respectively adapted to the first fixing groove and the first fixing plate. A handle is provided on one outer wall of the pull-out plate. Measuring mechanism: The measuring mechanism is located on the measuring base and the measuring rod.

[0008] In this design, two fixed brackets of the fixed storage mechanism are placed at the upper and lower connection points of the two measuring bases. The fixed brackets at both ends are connected by a fixed rod, and the spring pins apply downward pressure to fix the base. The springs are then compressed at both ends to remove the base. The two first fixed plates and two first fixed slots connect the two fixed brackets by sliding. During measurement, the fixed assembly can be used to quickly assemble multiple measuring base segments. After measurement, when transferring the measuring base, the second fixed plate and second fixed slot on the pull plate form a combined unit. The measuring base is then placed in the gap of the combined unit for centralized storage, which greatly improves the flexibility of the device and is simpler and more convenient than traditional screw installation and disassembly.

[0009] In a preferred embodiment, the measuring mechanism includes a stabilizing base disposed on the bottom outer wall of the measuring rod, a first shock absorber disposed on the top inner wall of the stabilizing base, a damping pad disposed on the bottom outer wall of the first shock absorber, a detection plate disposed on the circumferential outer wall of the measuring rod near the top, a laser measuring device disposed on the bottom outer wall of the detection plate, a laser receiver disposed on the top of one of the measuring bases near the measuring rod, the laser measuring device being positioned directly above the laser receiver, a measuring head disposed on the outer wall of the measuring base on the side away from the detection rod, a thermometer disposed on the outer wall of one side of the measuring head, and a misreading cover disposed on the top outer wall of the measuring rod.

[0010] By setting the first shock absorber on the stabilizing seat of the measuring mechanism in conjunction with the damping pad, the laser measuring device on the measuring rod can be more stable when measuring the laser receiver, thus avoiding measurement errors. In the face of relatively extreme environments, installing a mis-measurement cover can create a relatively closed space for the laser measuring device, thereby avoiding interference in the measurement process and ensuring the accuracy of the data. The thermometer can reflect the temperature at the time of measurement in real time.

[0011] As described above, the laser-calibrated foldable Beckman beam deflection detection device includes several measuring bases, a retractable plate, a measuring rod, and a display device, as well as a fixing and storage mechanism. The fixing and storage mechanism includes a fixing group located at the connection point of two measuring bases. Each fixing group consists of two fixing frames arranged vertically. The top outer wall of the fixing frame above the measuring base has an opening, and the top outer wall of the fixing frame below the measuring base has a fixing rod. The top of the fixing rod passes through the opening, and spring pins are provided on both outer walls of the fixing rod. The fixing rod is connected to the measuring base via the spring pins. The upper fixing frame limits the movement. Each side of the outer wall of the fixing group is provided with a first fixing plate and a first fixing groove. The first fixing plates and first fixing grooves located on the same fixing group are centrally symmetrically arranged. The pull-out plate is located on one side of one of the fixing groups. One inner wall of the pull-out plate is provided with a first fixing opening. One outer wall of the pull-out plate is provided with a second fixing plate and a second fixing groove. The second fixing plate and the second fixing groove are respectively adapted to the first fixing groove and the first fixing plate. One outer wall of the pull-out plate is provided with a handle. Measuring mechanism: The measuring mechanism is located on the measuring base and the measuring rod. The laser-calibrated foldable Beckman beam deflection detection device provided by this utility model has the technical effect of being more portable and stable. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the laser-calibrated foldable Beckman beam deflection detection device proposed in this utility model.

[0013] Figure 2 This is a magnified schematic diagram of the laser detector structure of the laser-calibrated foldable Beckman beam deflection detection device proposed in this utility model.

[0014] Figure 3 This is a schematic diagram of the fixed structure of the laser-calibrated foldable Beckman beam deflection detection device proposed in this utility model.

[0015] Figure 4 This is a schematic diagram showing the combined storage of the laser-calibrated foldable Beckman beam deflection detection device proposed in this utility model.

[0016] In the attached diagram: 1. Measuring base; 2. Measuring rod; 3. Fixing frame; 4. Measuring head; 5. Support frame; 6. Fixing rod; 7. Misreading cover; 8. Retractable plate; 9. Thermometer; 10. First fixing plate; 11. First fixing groove; 12. First fixing port; 13. Second fixing plate; 14. Second fixing groove; 15. Handle; 16. Detection plate; 17. Laser measuring device; 18. Laser receiver; 19. Stabilizer; 20. First shock absorber; 21. Vibration damping pad; 22. Limiting pad; 23. Second fixing port; 24. Support; 25. Support plate; 26. Second shock absorber; 27. Support base; 28. Folding plate; 29. ​​Spring pin. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0018] The laser-calibrated foldable Beckman beam deflection detection device disclosed in this utility model mainly uses the traditional laser-calibrated foldable Beckman beam deflection detection device. During transportation, due to structural reasons, it may be stored separately. The foldable structure usually relies on mechanical connections such as hinges and slide rails, which may have poor sealing and be inconvenient to handle in the field. After prolonged use, it is prone to loosening or chain wear.

[0019] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4A laser-calibrated foldable Beckman beam deflection testing device includes several measuring bases 1, a pull-out plate 8, a measuring rod 2, and a display device, as well as a fixing and storage mechanism. The fixing and storage mechanism includes a fixing group located at the connection point of two measuring bases 1. Each fixing group consists of two fixing frames 3 arranged vertically. The top outer wall of the fixing frame 3 above the measuring base 1 has an opening, and the top outer wall of the fixing frame 3 below the measuring base 1 has a fixing rod 6. The top of the fixing rod 6 passes through the opening, and spring pins 29 are provided on both sides of the outer wall of the fixing rod 6. The fixing rod 6 is connected to the fixing frame 3 above the measuring base 1 via the spring pins 29. The frame has three phase limiters. The outer walls of both sides of the fixed group are provided with a first fixing plate 10 and a first fixing groove 11. The first fixing plate 10 and the first fixing groove 11 on the same fixed group are centrally symmetrical. The pull plate 8 is located on one side of one of the fixed groups. The inner wall of one side of the pull plate 8 is provided with a first fixing opening 12. The outer wall of one side of the pull plate 8 is provided with a second fixing plate 13 and a second fixing groove 14. The second fixing plate 13 and the second fixing groove 14 are respectively adapted to the first fixing groove 11 and the first fixing plate 10. The outer wall of one side of the pull plate 8 is provided with a handle 15. Measurement mechanism: The measurement mechanism is located on the measuring base 1 and the measuring rod 2.

[0020] In this design, the two fixed brackets 3 of the fixed storage mechanism are placed at the upper and lower connection points of the two measuring bases 1. The fixed brackets 3 at the upper and lower ends are connected by the fixed rod 6. At the same time, the spring pin 29 is used to apply downward pressure to fix the device. The compression of the spring at both ends is used to remove the device. The two first fixed plates 10 and the two first fixed grooves 11 are connected by sliding the two fixed brackets 3. During measurement, the fixed assembly can be used to quickly assemble multiple sections of the measuring base 1. When the measuring base 1 is transferred after measurement, it is combined with the second fixed plate 13 and the second fixed groove 14 on the pull plate 8 to form a combined whole. The measuring base 1 is placed in the gap of the combined whole for centralized storage, which greatly improves the flexibility of the device and is simpler and more convenient to use than the traditional screw installation and disassembly.

[0021] The top inner wall of the fixing frame 3 below the measuring base 1 is provided with a buckle. It should be noted that the buckle allows the fixing rod 6 to be embedded into the bottom fixing frame 3 for fixation.

[0022] Reference Figure 1 , Figure 2 and Figure 3 In a preferred embodiment, the top outer wall of the measuring base 1 is provided with a support frame 5, the inner wall of the support frame 5 is provided with a second fixing port 23, the four outer walls of the support frame 5 are provided with support plates 25, the connection between the support plates 25 and the support frame 5 is provided with a folding plate 28, the bottom outer wall of the support plate 25 is provided with a support seat 27, and the top inner wall of the support seat 27 is provided with a second shock absorber 26.

[0023] When the measuring base 1 is working, the measuring base 1 can be supported by inserting the support frame 5 through the second fixing port 23. The bottom support plate 25, together with the support 24 and the support seat 27, forms a stable support. The second shock absorber 26 can reduce the shaking of the support frame 5. When combined and stored, the folding plate 28 allows the support plate 25 to be folded ninety degrees through the hinge for easy storage.

[0024] Reference Figure 1 and Figure 2 In a preferred embodiment, the measuring mechanism includes a stabilizing seat 19 disposed on the bottom outer wall of the measuring rod 2, a first shock absorber 20 disposed on the top inner wall of the stabilizing seat 19, a damping pad 21 disposed on the bottom outer wall of the first shock absorber 20, a detection plate 16 disposed on the circumferential outer wall of the measuring rod 2 near the top, a laser measuring device 17 disposed on the bottom outer wall of the detection plate 16, a laser receiver 18 disposed on the top of a measuring base 1 near the measuring rod 2, the laser measuring device 17 being positioned directly above the laser receiver 18, a measuring head 4 disposed on the outer wall of the measuring base 1 on the side away from the detection rod, a thermometer 9 disposed on the outer wall of the measuring head 4, and a false detection cover 7 disposed on the top outer wall of the measuring rod 2.

[0025] By setting the first shock absorber 20 on the stabilizing seat 19 of the measuring mechanism in conjunction with the damping pad 21, the laser measuring device 17 on the measuring rod 2 can be more stable when measuring the laser receiver 18, thereby avoiding measurement data errors. When facing relatively extreme environments, installing the error detection cover 7 can form a relatively closed space for the laser measuring device 17, thereby avoiding interference in the measurement process and ensuring the accuracy of the data. The temperature instrument 9 can reflect the temperature at the time of measurement in real time.

[0026] The thermometer 9 and the detection board 16 are connected via Bluetooth and used in conjunction with the display device.

[0027] The display device in this solution, which is the handheld mobile device of the staff (not shown in the diagram), can instantly display measurement data via Bluetooth connection.

[0028] The bottom of the stabilizer 19 is designed with a triangular support structure; the principle of triangular stability can be used to ensure that the measuring rod 2 is more stably supported on the ground.

[0029] Reference Figure 3 In a preferred embodiment, the fixture 3 is provided with a limiting pad 22 inside. The limiting pad 22 is made of silicone material, which can prevent the measuring substrate 1 from being worn by the metal during transportation with the fixture 3. At the same time, it can reduce instability after the fixture 3 fixes the measuring substrate 1 during measurement.

[0030] Working principle: In use, the fixing frame 3 in this solution can be used with the support frame 5 to fix the measuring base 1, so that the measuring base 1 can be combined to form the Beckman beam deflection detection device for measurement. At the same time, the first fixing groove 11 and the first fixing plate 10 on the fixing frame 3 can be combined with the second fixing groove 14 and the second fixing plate 13 on the pull-out plate 8 to form a storage structure. The storage structure can store the measuring base 1, reducing the space occupied and improving portability. During measurement, the mismeasurement cover 7 on the measuring rod 2 can reduce the mismeasurement rate when facing adverse environments. The above solutions greatly improve the flexibility of the device and better meet the needs of the market.

[0031] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A laser-calibrated foldable Beckman beam deflection testing device, comprising several measuring bases (1), a pull-out plate (8), a measuring rod (2), and a display device, characterized in that, Also includes; Fixed storage mechanism; the fixed storage mechanism includes a fixing group set at the connection of the two measuring bases (1), each fixing group consists of two fixing frames (3) set vertically. The top outer wall of the fixing frame (3) located above the measuring base (1) is provided with an opening, and the top outer wall of the fixing frame (3) located below the measuring base (1) is provided with a fixing rod (6). The top end of the fixing rod (6) is set through the opening, and the outer walls of both sides of the fixing rod (6) are provided with spring pins (29). The fixing rod (6) is limited to the fixing frame (3) located above the measuring base (1) by the spring pins (29). The two sides of the fixing group The outer wall is provided with a first fixing plate (10) and a first fixing groove (11). The first fixing plate (10) and the first fixing groove (11) located on the same fixing group are centrally symmetrically arranged. The pull plate (8) is located on one side of one of the fixing groups. The inner wall of one side of the pull plate (8) is provided with a first fixing opening (12). The outer wall of one side of the pull plate (8) is provided with a second fixing plate (13) and a second fixing groove (14). The second fixing plate (13) and the second fixing groove (14) are respectively adapted to the first fixing groove (11) and the first fixing plate (10). The outer wall of one side of the pull plate (8) is provided with a handle (15). Measuring mechanism: The measuring mechanism is located on the measuring base (1) and the measuring rod (2).

2. The laser-calibrated foldable Beckman beam deflection detection device according to claim 1, characterized in that, The top outer wall of the measuring base (1) is provided with a support frame (5), the inner wall of the support frame (5) is provided with a second fixing port (23), the four outer walls of the support frame (5) are provided with support plates (25), the connection between the support plate (25) and the support frame (5) is provided with a folding plate (28), the bottom outer wall of the support plate (25) is provided with a support seat (27), and the top inner wall of the support seat (27) is provided with a second shock absorber (26).

3. The laser-calibrated foldable Beckman beam deflection detection device according to claim 1, characterized in that, The top inner wall of the fixing frame (3) below the measuring base (1) is provided with a buckle.

4. The laser-calibrated foldable Beckman beam deflection detection device according to claim 1, characterized in that, The measuring mechanism includes a stabilizing seat (19) disposed on the bottom outer wall of the measuring rod (2), a first shock absorber (20) disposed on the top inner wall of the stabilizing seat (19), a damping pad (21) disposed on the bottom outer wall of the first shock absorber (20), a detection plate (16) disposed on the circumferential outer wall of the measuring rod (2) near the top, a laser measuring device (17) disposed on the bottom outer wall of the detection plate (16), a laser receiver (18) disposed on the top of one of the measuring bases (1) near the measuring rod (2), the laser measuring device (17) being positioned directly above the laser receiver, a measuring head (4) disposed on the outer wall of the measuring base (1) on the side away from the measuring rod (2), a thermometer (9) disposed on the outer wall of one side of the measuring head (4), and a mismeasurement cover (7) disposed on the top outer wall of the measuring rod (2).

5. The laser-calibrated foldable Beckman beam deflection detection device according to claim 4, characterized in that, The thermometer (9) and the detection board (16) are connected via Bluetooth and used in conjunction with the display device.

6. The laser-calibrated foldable Beckman beam deflection detection device according to claim 5, characterized in that, The bottom of the stabilizer (19) is configured as a triangular support structure.

7. The laser-calibrated foldable Beckman beam deflection detection device according to claim 1, characterized in that, The fixing frame (3) is provided with a limiting pad (22) inside.

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