Cantilever beam stability monitoring device

Abstract

The utility model relates to the technical field of building construction, in particular to a cantilever beam stability monitoring device which comprises a fixed seat installed on the edge of a floor, a lever is hinged to the lower side of the fixed seat and located on the lower side of a cantilever beam, a distance measuring sensor is arranged at one end of the lever, and the other end of the lever abuts against the bottom face of the cantilever end of the cantilever beam. The distance between the distance measuring end of the distance measuring sensor and the bottom surface of a floor slab is monitored through the distance measuring sensor, when the outer end of the cantilever beam sinks, the distance detected by the distance measuring sensor changes so as to monitor the stability of the cantilever beam, and meanwhile, the lever is used for amplifying the displacement of the cantilever outer end of the cantilever beam, so that the sensitivity of the monitoring device to a monitoring result is improved; and the reliability of the measurement result is improved.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically a cantilever beam stability monitoring device. Background Technology

[0002] When reinforcing existing cantilever beam scaffolding, it is often not connected to the existing building floor slabs and exterior wall structures. The main stress of the cantilever beam scaffolding is the anchorage of the cantilever beam, so the stability of the cantilever beam is of great importance. For construction workers, working on the scaffolding will cause significant swaying, making it difficult for workers to stand, which poses a safety hazard.

[0003] For example, in a pre-embedded component of a cantilever beam scaffolding with application number CN201420530399.X, the components include precast blocks, parallel reinforcing bars, and pre-embedded bolts. The pre-embedded bolts are double-headed bolts bent into a "U" shape. The precast blocks are arranged in pairs and parallel, and the parallel reinforcing bars are arranged in pairs inside the reinforcing bar holes of the precast blocks. The "U"-shaped surface of the pre-embedded bolts is perpendicular to the surface where the parallel reinforcing bars are located. The pre-embedded bolts are welded to the paired parallel reinforcing bars. The direct force of the cantilever scaffolding is located on the cantilever I-beam, and the force of the cantilever I-beam relies solely on the pre-embedded bolts. As the construction conditions change, it is impossible to monitor the overall state of the scaffolding in real time, and it is impossible to take preventive measures in advance to avoid safety accidents. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a cantilever beam stability monitoring device that can monitor the displacement and settlement of the cantilever beam in real time during the construction process.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A cantilever beam stability monitoring device includes a fixed base installed on the edge of a floor slab. A lever is hinged to the lower side of the fixed base. The lever is located under the cantilever beam, with a distance sensor at one end and the other end abutting against the bottom surface of the cantilever beam's outward cantilever end.

[0007] Compared with the prior art, the present utility model adopting the above technical solution has the following outstanding features:

[0008] This device has a simple structure, is easy to install and disassemble, and can be reused. It monitors the distance between the measuring end of the measuring sensor and the bottom surface of the floor slab through a ranging sensor. When the outer end of the cantilever beam sinks, the distance detected by the ranging sensor changes, thereby monitoring the stability of the cantilever beam. At the same time, the lever amplifies the displacement of the outer end of the cantilever beam, thereby improving the sensitivity of the monitoring device to the monitoring results and enhancing the reliability of the measurement results.

[0009] As a preferred embodiment, a further technical solution of this utility model is:

[0010] Preferably, there are two fixing seats, located on both sides of the cantilever beam. Each fixing seat includes an upper clamping plate and a lower clamping plate with an L-shaped structure. The vertical plates of the upper clamping plate and the lower clamping plate are slidably connected, making the fixing seat have an overall C-shaped structure. Two threaded cylinders are symmetrically arranged on opposite sides of the horizontal plates of the upper and lower clamping plates. It also includes a double-ended threaded rod with reversed threads at both ends, which are connected to the upper and lower threaded cylinders respectively. By rotating the double-ended threaded rod, the distance between the upper and lower clamping plates can be adjusted, thereby clamping the fixing seat to the edge of the floor slab for easy disassembly and reassembly.

[0011] Preferably, it also includes a rotating handle, the connecting end of which passes through the horizontal plate of the upper clamping plate and is connected to the upper end of the double-threaded rod; construction workers can fix the fixing seat to the edge of the floor slab by rotating the rotating handle on the upper side of the floor slab, making it more convenient to use.

[0012] Preferably, a spherical head is provided at one end of the lever that abuts against the underside of the cantilever beam to ensure effective contact between the end of the lever and the bottom surface of the cantilever beam.

[0013] Preferably, it also includes an adjusting seat and a mounting seat. The ranging sensor is mounted on the mounting seat, and a connecting handle is provided at each end of the mounting seat. The adjusting seat is set on the lever. The mounting seat is rotatably connected to the adjusting seat through the connecting handle and is locked and fixed by a locking nut. This ensures that the mounting seat can be adjusted to keep the ranging end of the ranging sensor vertically upward, regardless of the angle of the lever.

[0014] Preferably, the lever with the distance sensor is also equipped with a counterweight; ensuring that the lever with the distance sensor is always in a depressed state. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the installation structure of the cantilever beam stability monitoring device in this embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of the cantilever beam stability monitoring device in this embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the other side of the cantilever beam stability monitoring device in this embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the connection structure between the adjusting seat and the mounting seat in an embodiment of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Floor slab; 2. Cantilever beam; 3. Fixing seat; 301. Upper clamping plate; 302. Lower clamping plate; 303. Threaded cylinder; 304. Double-ended threaded rod; 4. Connecting lug; 5. Lever; 6. Spherical head; 7. Distance sensor; 8. U-bolt; 9. Scaffold fixing seat; 10. Rotating handle; 11. Adjusting seat; 12. Mounting seat; 13. Locking nut. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments. The purpose of this description is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0021] like Figures 1 to 4 As shown, the cantilever beam 2 is connected and fixed to the floor slab 1 by U-bolts 8 arranged at intervals, and the cantilever scaffolding is fixed to the cantilever side of the cantilever beam 2 by scaffolding fixing seat 9; this embodiment provides a cantilever beam stability monitoring device, including a fixing seat 3 installed on the edge of the floor slab 1, a connecting lug 4 is provided on the lower side of the fixing seat 3, and a lever 5 is hinged through the connecting lug 4. The lever 5 is located on the lower side of the cantilever beam 2. A distance measuring sensor 7 is provided at one end of the lever 5, and the other end is lighter than the end with the distance measuring sensor 7, so it is tilted upward and abuts against the bottom surface of the cantilever beam 2's outward cantilever end; wherein, the distance measuring sensor 7 can be a laser distance measuring sensor 7, a radar distance measuring sensor 7, a contact displacement sensor, etc.; furthermore, in order to ensure the contact effect between the end of the lever 5 and the bottom surface of the cantilever beam 2, a spherical head 6 is provided at the lower end of the lever 5 abutting against the cantilever beam 2.

[0022] To ensure that the end with the distance sensor 7 is in a depressed state during measurement, a counterweight is also provided at the end of the lever 5 where the distance sensor 7 is located.

[0023] In this embodiment, as Figures 1 to 3 There are two fixing seats 3, located on both sides of the cantilever beam 2. Each fixing seat 3 includes an upper clamping plate 301 and a lower clamping plate 302 with an L-shaped structure. The vertical plate of the lower clamping plate 302 has a slot, and the vertical plate of the upper clamping plate 301 is slidably inserted into the slot, so that the fixing seat 3 has a C-shaped structure. Two threaded cylinders 303 are symmetrically arranged on opposite sides of the horizontal plates of the upper clamping plate 301 and the lower clamping plate 302. It also includes a double-ended threaded rod 304 with reversed threads at both ends, which are connected to the upper and lower threaded cylinders 303 respectively. By rotating the double-ended threaded rod 304, the upper clamping plate 301 and the lower clamping plate 302 can be moved closer or further apart, thereby adjusting the distance between the upper clamping plate 301 and the lower clamping plate 302, clamping the fixing seat 3 to the edge of the floor slab 1, which is convenient for disassembly and connection.

[0024] To facilitate construction workers in fixing the fixing seat 3 to the edge of the floor slab 1 by rotating the rotating handle 10 on the upper side of the floor slab 1, this embodiment also provides a rotating handle 10. The connecting end of the rotating handle 10 passes through the horizontal plate of the upper clamping plate 301 and is connected to the upper end of the double-headed threaded rod 304.

[0025] It also includes an adjustment seat 11 and a mounting seat 12. The distance sensor 7 is mounted on the mounting seat 12. Each end of the mounting seat 12 is provided with a connecting handle. The adjustment seat 11 is set on the lever 5. The mounting seat 12 is rotatably connected to the adjustment seat 11 through the connecting handle and is locked and fixed by the locking nut 13. This ensures that the mounting seat 12 can be adjusted to keep the distance measuring end of the distance sensor 7 vertically upward, regardless of the angle of the lever 5.

[0026] This device monitors the distance between the measuring end of the measuring sensor 7 and the bottom surface of the floor slab 1 through the ranging sensor 7. When the outer end of the cantilever beam 2 sinks, the distance detected by the ranging sensor 7 changes, thereby monitoring the stability of the cantilever beam 2. At the same time, the lever 5 amplifies the displacement of the outer end of the cantilever beam 2, thereby improving the sensitivity of the monitoring device to the monitoring results and enhancing the reliability of the measurement results.

[0027] The above description is merely a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. A cantilever beam stability monitoring device, characterized in that: Includes a fixed seat (3) installed on the edge of the floor slab (1), with a lever (5) hinged to the lower side of the fixed seat (3). The lever (5) is located on the lower side of the cantilever beam (2), with a distance sensor (7) at one end and the other end abutting against the bottom surface of the cantilever beam (2).

2. The cantilever beam (2) stability monitoring device according to claim 1, characterized in that: There are two fixed seats (3), located on both sides of the cantilever beam (2); each fixed seat (3) includes an upper clamping plate (301) and a lower clamping plate (302) in an L-shaped structure. The vertical plates of the upper clamping plate (301) and the lower clamping plate (302) are slidably connected, so that the fixed seat (3) is in a C-shaped structure. Two threaded cylinders (303) are symmetrically arranged on opposite sides of the horizontal plates of the upper clamping plate (301) and the lower clamping plate (302). It also includes a double-headed threaded rod (304), with the threads at both ends of the double-headed threaded rod (304) arranged in opposite directions, and connected to the upper and lower threaded cylinders (303) respectively.

3. The cantilever beam (2) stability monitoring device according to claim 2, characterized in that: It also includes a rotating handle (10), the connecting end of which passes through the horizontal plate of the upper clamping plate (301) and is connected to the upper end of the double-ended threaded rod (304).

4. The cantilever beam (2) stability monitoring device according to claim 1, characterized in that: The lever (5) is abutted against one end of the cantilever beam (2) and has a spherical head (6).

5. The cantilever beam (2) stability monitoring device according to claim 1, characterized in that: It also includes an adjustment seat (11) and a mounting seat (12). The distance sensor (7) is mounted on the mounting seat (12). Each end of the mounting seat (12) is provided with a connecting handle. The adjustment seat (11) is set on the lever (5). The mounting seat (12) is rotatably connected to the adjustment seat (11) through the connecting handle and is locked and fixed by the locking nut (13).

6. The cantilever beam (2) stability monitoring device according to claim 1, characterized in that: The lever (5) is equipped with a distance sensor (7) and a counterweight is also provided at one end.

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