Construction scaffold vibration monitoring device

Abstract

The application discloses a construction scaffold vibration monitoring device and belongs to the technical field of scaffolds. The device comprises a base, a clamping piece for clamping one end of a hollow scaffold pole is installed on the base, one end of the base is connected to a monitoring seat through an outer guide rod, the monitoring seat is slidably arranged on the outer side of the outer guide rod, and a sensor is installed on the monitoring seat towards the side of the scaffold pole; the other end of the base is connected to the output end of a rotary driving device, a motor-driven telescopic rod is coaxially installed on the rotary driving device, an inner guide rod is connected to the output end of the motor-driven telescopic rod, the inner guide rod and the outer guide rod are arranged on the inner and outer sides of the scaffold pole respectively, a sleeve is installed on the inner guide rod, a push cylinder is installed in the sleeve, the output end of the push cylinder is eccentrically connected to a sliding sleeve, the sliding sleeve is slidably arranged on the outer side of the inner guide rod, and a plurality of connecting rod groups are uniformly and interval arranged on the circumference of the sliding sleeve. The application can reduce the number of sensors arranged on the scaffold pole and reduce the construction cost and difficulty.

Description

Technical Field

[0001] This invention belongs to the field of scaffolding monitoring technology, specifically relating to a vibration monitoring device for construction scaffolding. Background Technology

[0002] As an indispensable temporary support structure in construction projects, the safety and stability of scaffolding directly affect the lives of construction workers and the quality of the project. Currently, monitoring technologies for the health status of scaffolding structures have made some progress. Existing monitoring methods mostly rely on various sensors, such as accelerometers, strain gauges, displacement sensors, and tilt sensors. These sensors are typically fixed to key nodes or the surfaces of the scaffolding members, transmitting the collected vibration, deformation, and tilt signals to a backend data processing system via wired or wireless means to achieve real-time assessment and early warning of the scaffolding's working status. To comprehensively understand the dynamic response of the scaffolding, it is often necessary to monitor vibration at multiple locations on multiple scaffolding members. However, construction sites often face a shortage of sensors, and the presence of multiple sensors significantly increases the difficulty of installation and dismantling. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a vibration monitoring device for construction scaffolding, which can reduce the number of sensors to be installed on the scaffold poles, thereby reducing construction costs and difficulty.

[0004] To achieve the above objectives, the present invention provides the following technical solution: This invention discloses a vibration monitoring device for construction scaffolding, comprising a base, on which a clamping member is installed for clamping one end of a hollow scaffold pole. One end of the base is connected to a monitoring seat via an outer guide rod, and the monitoring seat is slidably disposed outside the outer guide rod. A sensor is installed on the monitoring seat facing the scaffold pole. The other end of the base is connected to the output end of a rotary drive device, on which an electric telescopic rod is coaxially mounted. The output end of the electric telescopic rod is connected to an inner guide rod. The inner and outer guide rods are respectively arranged on the inner and outer sides of the scaffold pole. A sleeve is installed on the inner guide rod, and a push cylinder is installed inside the sleeve. The output end of the push cylinder is eccentrically connected to a sliding sleeve, which is simultaneously slidably disposed outside the inner guide rod. Multiple connecting rod groups are evenly spaced around the circumference of the sliding sleeve, and a magnetic block is connected to the outer end of each connecting rod group. A magnetic component corresponding to the magnetic block is installed on the monitoring seat. When the push cylinder pushes the sliding sleeve to move axially, the sliding sleeve can drive the magnetic block to press tightly against the inner wall of the scaffold pole through the connecting rod groups.

[0005] Furthermore, the linkage assembly includes an inner end support, a tie rod, a first connecting rod, a second connecting rod, and an outer end support. The inner end support is Z-shaped, with a first hinge point and a second hinge point spaced apart on the inner end support. A third hinge point and a fourth hinge point are spaced apart on the outer end support. The distance between the first and second hinge points is the same as the distance between the third and fourth hinge points. The outer side of the sliding sleeve is hinged to one end of the first connecting rod via the tie rod. The middle part of the first connecting rod is hinged to the first hinge point. The other end of the first connecting rod is hinged to the third hinge point on the outer end support. The fourth hinge point is hinged to the second hinge point via the second connecting rod. The first and second connecting rods are parallel to each other.

[0006] Furthermore, a slot is installed on the outer end support, a connecting hole is provided on the side of the slot, a strip block is installed in the slot, a locking element for fixing the strip block to the slot is provided in the connecting hole, and a magnetic block is fixedly installed on the outside of the strip block.

[0007] Furthermore, the monitoring base includes two parallel support plates and a radial telescopic device for connecting the two support plates. The radial telescopic device has a through hole for the outer guide rod to pass through. The sensor is connected to the output end of the radial telescopic device. Both ends of the support plates are hinged with a third connecting rod. A gap is formed between the two support plates for installing the third connecting rod. The magnetic component is installed at the end of the third connecting rod away from the support plate.

[0008] Furthermore, a rotating support device is installed between the support plate and the third link, which is used to provide elastic support force for the third link to deflect toward the scaffold pole side.

[0009] Furthermore, the base includes a first base plate and a second base plate, which are respectively connected to the outer guide rod and the output end of the rotary drive device. The first base plate and the second base plate are pivotally connected and fixed together by a locking member.

[0010] Furthermore, the clamping component includes an L-shaped fixed bracket. The lower side of the horizontal end of the fixed bracket is fixed to the second base plate, and the vertical end of the fixed bracket is located on the outside of the scaffold pole. A hydraulic cylinder is also installed on the fixed bracket. A sliding groove is opened on the upper side of the horizontal end of the fixed bracket, and a sliding bracket is slidably arranged in the sliding groove. The sliding bracket is located on the inside of the scaffold pole, and the output end of the hydraulic cylinder is connected to the sliding bracket.

[0011] The beneficial effects of this invention are as follows: This invention discloses a vibration monitoring device for construction scaffolding. By designing a magnetic block on the inner side of the scaffold pole, the magnetic block provides an attractive force to a magnetic component, allowing the monitoring seat to adhere tightly to the scaffold pole for normal monitoring. After monitoring, the magnetic block is moved axially via an electric telescopic rod, causing the magnetic component to move the monitoring seat accordingly. This enables monitoring of multiple locations on the scaffold pole. Using this method, one sensor can monitor multiple locations without frequent sensor disassembly, reducing the number of sensors required on the scaffold pole compared to existing technologies, thus lowering construction costs and complexity. Furthermore, this invention incorporates a rotary drive device. The magnetic block can be controlled by an electromagnet. Once the magnetic block is firmly fixed to the inner wall of the scaffold pole, the magnetism can be temporarily deactivated. Rotating the base around the inner guide rod changes the circumferential position of the outer monitoring seat, enabling monitoring of different circumferential locations on the scaffold pole. Attached Figure Description

[0012] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration: Figure 1 This is a schematic diagram of the structure of the present invention when it is used in conjunction with a scaffold pole; Figure 2 This is a schematic diagram of the structure of the present invention; Figure 3 This is a schematic diagram of the outer guide rod. Figure 4 This is a schematic diagram of the clamping component. Figure 5 This is a schematic diagram of the sleeve structure.

[0013] The following components are labeled in the attached diagram: base 1, clamping component 2, monitoring seat 3, outer guide rod 4, sensor 5, rotary drive device 6, electric telescopic rod 7, inner guide rod 8, sleeve 9, push cylinder 10, sliding sleeve 11, magnet 12, magnetic component 13, inner end support 14, pull rod 15, first connecting rod 16, second connecting rod 17, outer end support 18, first hinge point 19, second hinge point 20, third hinge point 21, fourth hinge point 22, slot 23, connecting hole 24, strip block 25, support plate 26, radial telescopic device 27, third connecting rod 28, rotating support device 29, first seat plate 30, second seat plate 31, fixed bracket 32, hydraulic cylinder 33, slide groove 34, sliding bracket 35. Detailed Implementation

[0014] like Figures 1-5As shown, this invention discloses a vibration monitoring device for construction scaffolding, comprising a base 1, on which a clamping member 2 is installed for clamping one end of a hollow scaffold pole. The clamping member 2 can clamp the side wall of the hollow scaffold pole and is controlled by an electric device. One end of the base 1 is connected to a monitoring seat 3 via an outer guide rod 4. The monitoring seat 3 is used to install a vibration monitoring sensor 5. The monitoring seat 3 is slidably disposed on the outside of the outer guide rod 4, and the sensor 5 is installed on the monitoring seat 3 facing the scaffold pole side.

[0015] Meanwhile, the other end of the base 1 of this invention is connected to the output end of the rotary drive device 6. The rotary drive device 6 can be a servo motor. When the sleeve 9 is temporarily anchored, the rotary drive device 6 can drive the base 1 to rotate to adjust the circumferential position. An electric telescopic rod 7 is coaxially mounted on the rotary drive device 6. The output end of the electric telescopic rod 7 is connected to an inner guide rod 8. The inner guide rod 8 and the outer guide rod 4 are arranged on the inner and outer sides of the scaffold pole respectively. A sleeve 9 is mounted on the inner guide rod 8. A push cylinder 10 is installed inside the sleeve 9. The output end of the push cylinder 10 is eccentrically connected to a sliding sleeve 11. The sliding sleeve 11 is simultaneously slidably sleeved on the outer side of the inner guide rod 8. Multiple connecting rod groups are evenly spaced around the circumference of the sliding sleeve 11. A magnetic block 12 is connected to the outer end of the connecting rod group. A magnetic component 13 corresponding to the magnetic block 12 is installed on the monitoring base 3. When the push cylinder 10 pushes the sliding sleeve 11 to move axially, the sliding sleeve 11 can drive the magnetic block 12 to tightly adhere to the inner wall of the scaffold pole through the connecting rod group.

[0016] In actual operation, the electric telescopic pole 7 pushes the sliding sleeve 11 on the inner guide rod 8 to move axially, driving the magnetic block 12 to expand radially and press against the inner wall of the scaffold pole via the linkage group. This action not only completes the temporary anchoring of the device inside the pole, but the magnetic block 12, as a movable positioning reference for the magnetic component 13, can remotely guide the outer monitoring seat 3 to slide synchronously along the outer wall of the scaffold pole through magnetic attraction. This allows a single sensor 5 to traverse multiple monitoring sections along the pole length without disassembly or manual intervention, completely changing the fixed deployment mode of one sensor 5 per point in traditional vibration monitoring. For ultra-long scaffolding systems, this device can significantly reduce the number of sensors 5 and their cables to purchase, install, and maintain. Especially in complex high-altitude environments, it reduces the safety risks and labor costs caused by frequent climbing and replacement of sensors 5, while avoiding systematic measurement errors introduced by individual differences among multiple sensors 5.

[0017] In this embodiment, the linkage assembly includes an inner end support 14, a pull rod 15, a first connecting rod 16, a second connecting rod 17, and an outer end support 18. The inner end support 14 is Z-shaped, and a first hinge point 19 and a second hinge point 20 are spaced apart on the inner end support 14. A third hinge point 21 and a fourth hinge point 22 are spaced apart on the outer end support 18. The distance between the first hinge point 19 and the second hinge point 20 is the same as the distance between the third hinge point 21 and the fourth hinge point 22. The outer side of the sliding sleeve 11 is hinged to one end of the first connecting rod 16 through the pull rod 15. The middle part of the first connecting rod 16 is hinged to the first hinge point 19. The other end of the first connecting rod 16 is hinged to the third hinge point 21 on the outer end support 18. The fourth hinge point 22 is hinged to the second hinge point 20 through the second connecting rod 17. The first connecting rod 16 and the second connecting rod 17 are parallel to each other.

[0018] In this invention, the first and second hinge points 20 on the inner end support 14 and the third and fourth hinge points 22 on the outer end support 18 maintain the same distance, and the first connecting rod 16 and the second connecting rod 17 are parallel to each other. Together with the hinged linkage between the pull rod 15 and the sliding sleeve 11, they form a stable double parallelogram mechanism. When the sliding sleeve 11 is driven to move axially by the push cylinder 10, the pull rod 15 drives the first connecting rod 16 to rotate around the first hinge point 19. Due to the constraint of the parallelogram, the outer end support 18 always maintains the same attitude angle relative to the inner end support 14, only producing radial displacement. This kinematic characteristic ensures that regardless of the axial position of the sliding sleeve 11, the magnetic block 12 fixed on the outer end support 18 always adheres vertically to the inner wall of the scaffold pole with positive pressure, avoiding contact stress concentration or magnetic attraction attenuation caused by inclined contact. Meanwhile, the design of the Z-shaped inner end support 14 effectively avoids the axial space of the inner guide rod 8, making the radial dimension of the entire linkage group extremely small in the retracted state, which is convenient to pass through the narrow rod end opening, while providing sufficient radial travel to adapt to scaffolding rods with different inner diameters when extended.

[0019] In this embodiment, a slot 23 is installed on the outer end support 18. A connecting hole 24 is provided on the side of the slot 23. A strip block 25 is installed in the slot 23. A locking member for fixing the strip block 25 to the slot 23 is provided in the connecting hole 24. The magnetic block 12 is fixedly installed on the outside of the strip block 25. The magnetic block 12 needs to repeatedly rub against the inner wall of the steel pipe and withstand vibration and impact, making it a vulnerable component. This solution uses a slot 23 with a side connecting hole 24 on the outer end support 18 to make the strip block 25 an independent carrier for the magnetic block 12, and uses a locking member to achieve quick fixation.

[0020] In this embodiment, the monitoring base 3 includes two parallel support plates 26 and a radial telescopic device 27 for connecting the two support plates 26. The radial telescopic device 27 has a through hole for the outer guide rod 4 to pass through. The sensor 5 is connected to the output end of the radial telescopic device 27. Both ends of the support plates 26 are hinged with a third connecting rod 28. A gap is formed between the two support plates 26 for installing the third connecting rod 28. The magnetic component 13 is installed at the end of the third connecting rod 28 away from the support plate 26, which facilitates the attraction and fixation of the magnetic component 13.

[0021] In this embodiment, a rotating support device 29 is installed between the support plate 26 and the third link 28. The rotating support device 29 is used to provide the third link 28 with an elastic support force that deflects toward the scaffold pole side, thereby optimizing the adaptive centering capability of the monitoring seat 3 during circumferential rotation and making the force more balanced.

[0022] In this embodiment, the base 1 includes a first base plate 30 and a second base plate 31. The first base plate 30 and the second base plate 31 are respectively connected to the outer guide rod 4 and the output end of the rotary drive device 6. The first base plate 30 and the second base plate 31 are pivotally connected and fixed together by a locking member, which can facilitate folding, installation or disassembly.

[0023] In this embodiment, the clamping member 2 includes an L-shaped fixed bracket 32. The lower side of the horizontal end of the fixed bracket 32 ​​is fixed to the second base plate 31, and the vertical end of the fixed bracket 32 ​​is located on the outside of the scaffold pole. A hydraulic cylinder 33 is also installed on the fixed bracket 32. A sliding groove 34 is provided on the upper side of the horizontal end of the fixed bracket 32, and a sliding bracket 35 is slidably disposed in the sliding groove 34. The sliding bracket 35 is located on the inside of the scaffold pole, and the output end of the hydraulic cylinder 33 is connected to the sliding bracket 35. In this invention, the vertical end of the fixed bracket 32 ​​is located outside the pole as a fixed stop, while the sliding bracket 35 moves from the inside to the outside of the pole along the sliding groove 34 under the push of the hydraulic cylinder 33, forming a ring-shaped clamping of the pole wall with the vertical end of the fixed bracket 32. The clamping is stable and convenient and will not interfere with the device.

Claims

1. A vibration monitoring device for construction scaffolding, characterized in that: The system includes a base with a clamping device for holding one end of a hollow scaffold pole. One end of the base is connected to a monitoring seat via an outer guide rod, which is slidably positioned outside the outer guide rod. A sensor is mounted on the monitoring seat facing the scaffold pole. The other end of the base is connected to the output end of a rotary drive device. An electric telescopic rod is coaxially mounted on the rotary drive device, and its output end is connected to an inner guide rod. The inner and outer guide rods are arranged on the inner and outer sides of the scaffold pole, respectively. A sleeve is mounted on the inner guide rod, and a push cylinder is installed inside the sleeve. The output end of the push cylinder is eccentrically connected to a sliding sleeve, which is simultaneously slidably fitted on the outer side of the inner guide rod. Multiple linkage groups are evenly spaced around the sliding sleeve, and magnetic blocks are connected to the outer ends of the linkage groups. A magnetic component corresponding to the magnetic block is mounted on the monitoring seat. When the push cylinder pushes the sliding sleeve to move axially, the sliding sleeve can drive the magnetic block to press tightly against the inner wall of the scaffold pole through the linkage groups.

2. The construction scaffold vibration monitoring device according to claim 1, characterized in that: The linkage assembly includes an inner end support, a tie rod, a first connecting rod, a second connecting rod, and an outer end support. The inner end support is Z-shaped, with a first hinge point and a second hinge point spaced apart on it. The outer end support has a third hinge point and a fourth hinge point spaced apart. The distance between the first and second hinge points is the same as the distance between the third and fourth hinge points. The outer side of the sliding sleeve is hinged to one end of the first connecting rod via the tie rod. The middle part of the first connecting rod is hinged to the first hinge point. The other end of the first connecting rod is hinged to the third hinge point on the outer end support. The fourth hinge point is hinged to the second hinge point via the second connecting rod. The first and second connecting rods are parallel to each other.

3. The construction scaffold vibration monitoring device according to claim 2, characterized in that: A slot is installed on the outer end support, and a connecting hole is provided on the side of the slot. A strip block is installed in the slot, and a locking device for fixing the strip block to the slot is provided in the connecting hole. A magnetic block is fixedly installed on the outside of the strip block.

4. The construction scaffold vibration monitoring device according to claim 3, characterized in that: The monitoring base includes two parallel support plates and a radial telescopic device for connecting the two support plates. The radial telescopic device has a through hole for the outer guide rod to pass through. The sensor is connected to the output end of the radial telescopic device. Both ends of the support plates are hinged with a third link. A gap is formed between the two support plates for installing the third link. The magnetic component is installed at the end of the third link away from the support plate.

5. The construction scaffold vibration monitoring device according to claim 4, characterized in that: A swivel support device is installed between the support plate and the third link. The swivel support device is used to provide elastic support force for the third link to deflect toward the scaffold pole side.

6. The construction scaffold vibration monitoring device according to claim 5, characterized in that: The base includes a first base plate and a second base plate. The first base plate and the second base plate are respectively connected to the outer guide rod and the output end of the rotary drive device. The first base plate and the second base plate are pivotally connected and fixed together by a locking member.

7. The construction scaffold vibration monitoring device according to claim 6, characterized in that: The clamping component includes an L-shaped fixed bracket. The lower side of the horizontal end of the fixed bracket is fixed to the second base plate. The vertical end of the fixed bracket is located on the outside of the scaffold pole. A hydraulic cylinder is also installed on the fixed bracket. A sliding groove is opened on the upper side of the horizontal end of the fixed bracket. A sliding bracket is slidably arranged in the sliding groove. The sliding bracket is located on the inside of the scaffold pole. The output end of the hydraulic cylinder is connected to the sliding bracket.

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