Laser displacement monitor for measuring micro deformation of building structure

Abstract

The utility model discloses a laser displacement monitor for measuring tiny deformation of a building structure, which comprises at least one shell with window glass on the outer wall. The mounting column is arranged in the shell, the rotating column is arranged in the shell and located on one side of the mounting column, the rotating device is arranged in the shell, the output end of the rotating device is connected with one end of the rotating column, and the connecting supports are arranged on the mounting column. The monitoring probes are arranged on the connecting brackets; and the driving assemblies are arranged on the outer wall of the rotating column and are in one-to-one correspondence with the connecting brackets. According to the utility model, the plurality of groups of monitoring probes are arranged on the mounting column through the connecting bracket, and the monitoring angle of each monitoring probe can be independently regulated and controlled through the matching of the driving assembly, the rotating device and the rotating column, so that the regulation and control are convenient, and different engineering sites are adapted; and the laser displacement monitor can monitor the position change of the target measuring point in multiple dimensions, and the monitoring range is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of building structure monitoring, and particularly relates to a laser displacement monitor for measuring minute deformations of building structures. Background Technique

[0002] During the life cycle of buildings, they are affected by various external factors (such as wind force, earthquake, temperature change, etc.), resulting in minute displacements of the structure. Although these changes are difficult to detect with the naked eye, they are often precursors to the decline of the structural safety performance. If not discovered and addressed in a timely manner, they may trigger serious safety accidents. Currently, most laser displacement monitors are installed near building structures to monitor target measuring points on the building structure in real time. However, traditional laser displacement monitors can only monitor the position changes of target measuring points in one dimension, with a narrow monitoring range, and it is difficult to provide more comprehensive and accurate displacement data to help staff discover and handle potential safety hazards in a timely manner. For this reason, we propose a laser displacement monitor for measuring minute deformations of building structures. Content of the Utility Model

[0003] The purpose of the utility model is to provide a laser displacement monitor for measuring minute deformations of building structures, so as to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution:

[0005] A laser displacement monitor for measuring minute deformations of building structures includes at least one housing with a window glass on its outer wall, and also includes a mounting post arranged inside the housing, a rotating post arranged inside the housing and on one side of the mounting post, a rotating device arranged inside the housing and with its output end connected to one end of the rotating post, several groups of connecting brackets arranged on the mounting post, monitoring probes arranged on the connecting brackets, and several groups of driving components arranged on the outer wall of the rotating post and corresponding to the connecting brackets one by one. The driving components are controlled by a control module to transmit the rotational force of the rotating post to the connecting brackets, so that the connecting brackets adjust the monitoring angles of the monitoring probes.

[0006] Further improvement lies in that the connecting bracket includes:

[0007] A sleeve, movably sleeved on the outer wall of the mounting post, with a monitoring probe installed on its outer wall through a probe bracket, and a gear one in transmission connection with the driving component is also sleeved on the outer wall of the sleeve; and

[0008] A first connecting plate, movably sleeved on the outer wall of the mounting post and fixedly connected to one end of the sleeve. A connecting cylinder is rotatably arranged on the side of the first connecting plate away from the sleeve. The connecting cylinder is connected to a second connecting plate. The second connecting plate and the connecting cylinder are both movably sleeved on the outer wall of the mounting post. A fixing member is arranged on the second connecting plate for fixedly connecting the second connecting plate to the mounting post.

[0009] A further improvement lies in that the driving assembly includes:

[0010] An assembly seat is fixedly sleeved on the outer wall of the rotating column. A second gear that meshes with the first gear is movably sleeved on the outer wall of the assembly seat. A first magnetic member for electrically adsorbing the second gear is fixedly arranged on the outer wall of the assembly seat at a position corresponding to the second gear.

[0011] A further improvement lies in that a pressing frame is movably sleeved on the outer wall of the connecting cylinder. The pressing frame is connected to the second connecting plate through an elastic member. A contact piece for contacting the pressing frame is arranged on one side of the first connecting plate facing the pressing frame. A second magnetic member for electrically driving the pressing frame to contact the contact piece is arranged at one end of the assembly seat.

[0012] A further improvement lies in that both the first magnetic member and the second magnetic member are annular and are both electrically connected to the control module.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] In the present utility model, a plurality of groups of monitoring probes are installed on the installation column through a connecting bracket. Through the cooperation of the driving assembly, the rotating device and the rotating column, the monitoring angles of each monitoring probe can be independently adjusted. It is not only convenient to adjust and adapt to different engineering sites, but also this laser displacement monitor can monitor the position changes of the target measuring point in multiple dimensions, with a high monitoring range, and can provide more comprehensive and accurate displacement data, facilitating the staff to timely discover and handle potential safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the connecting bracket of the present utility model;

[0017] Figure 3 is a schematic structural diagram of the driving assembly of the present utility model.

[0018] In the figure: 100, housing; 200, connecting bracket; 201, sleeve; 202, first gear; 203, first connecting plate; 204, connecting cylinder; 205, fixing member; 206, elastic member; 207, pressing frame; 208, contact piece; 300, monitoring probe; 400, rotating column; 500, driving assembly; 501, assembly seat; 502, first magnetic member; 503, second gear; 504, second magnetic member; 600, installation column. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment 1

[0021] Please refer to the attached Figure 1

[0022] A laser displacement monitor for measuring the minute deformation of a building structure includes at least a housing 100 with a window glass on its outer wall. At least one outer wall of the housing 100 is hollow and is embedded with the window glass. As shown in the attached Figure 1 figure, the window glass can be arranged on the front side of the housing 100.

[0023] It further includes a mounting post 600 arranged in the housing 100, a rotating post 400 arranged in the housing 100 and located on one side of the mounting post 600, a rotating device arranged in the housing 100 and having an output end connected to one end of the rotating post 400, several groups of connecting brackets 200 arranged on the mounting post 600, monitoring probes 300 arranged on the connecting brackets 200, and several groups of driving components 500 arranged on the outer wall of the rotating post 400 and corresponding to the connecting brackets 200 one by one. In this embodiment, the rotating device is, for example, a servo motor and a reducer, and the monitoring probe 300 is a laser displacement monitoring probe, which is a conventional device in the art and will not be described in detail here. It projects a laser beam onto a reflector installed on the surface of the measured building structure, and precisely measures the minute displacement or deformation of the building structure by receiving the reflected light and calculating the optical path difference, realizing high-precision monitoring of the structural state.

[0024] The driving component 500 transmits the rotational force of the rotating post 400 to the connecting bracket 200 under the control of the control module, so that the connecting bracket 200 adjusts the monitoring angle of the monitoring probe 300. The control module can be arranged in the housing 100. The arrangement of the driving component 500 facilitates the user to independently control the angles of several groups of monitoring probes 300 respectively and conduct all-round measurement and monitoring of the measured building structure.

[0025] Please refer to the attached Figure 2 - attached Figure 3

[0026] Preferably, the connecting bracket 200 of this embodiment includes:

[0027] The sleeve 201 is movably sleeved on the outer wall of the mounting column 600. The monitoring probe 300 is mounted on its outer wall through a probe bracket. The monitoring probe 300 is a laser probe. During use, a reflecting sheet is installed at the position on the building structure to be monitored, and its minute deformation is monitored in real time using the laser reflection principle. This belongs to the prior art and will not be elaborated here;

[0028] A first gear 202 that is in transmission connection with the driving assembly 500 is also sleeved on the outer wall of the sleeve 201; and,

[0029] A first connecting plate 203 is movably sleeved on the outer wall of the mounting column 600 and fixedly connected to one end of the sleeve 201. A connecting cylinder 204 is rotatably provided on the side of the first connecting plate 203 away from the sleeve 201 through a bearing. The connecting cylinder 204 is connected to a second connecting plate. Both the second connecting plate and the connecting cylinder 204 are movably sleeved on the outer wall of the mounting column 600. A fixing member 205 is provided on the second connecting plate for fixedly connecting the second connecting plate to the mounting column 600. The fixing member 205 can be a bolt, and a screw hole for the bolt to enter is provided on the outer wall of the mounting column 600;

[0030] When adjusting the angle of the monitoring probe 300, the rotating device drives the rotating column 400 to rotate, the driving assembly 500 drives the first gear 202, and the first gear 202 drives the sleeve 201 so that the probe bracket drives the monitoring probe 300 to rotate, changing the monitoring angle of the monitoring probe 300.

[0031] Preferably, the driving assembly 500 of this embodiment includes:

[0032] An assembly seat 501 is fixedly sleeved on the outer wall of the rotating column 400 and rotates with the rotating column 400. A second gear 503 that meshes with the first gear 202 is movably sleeved on the outer wall of the assembly seat 501. A first magnetic member 502 for electrically adsorbing the second gear 503 is fixedly provided on the outer wall of the assembly seat 501 corresponding to the position of the second gear 503. By turning on the first magnetic member 502, the assembly seat 501 can drive the second gear 503 to rotate when rotating with the rotating column 400. Similarly, when the first magnetic member 502 is powered off, the second gear 503 will not rotate. In this way, the user controls the corresponding first magnetic member 502 to be powered on, and then drives the rotating column 400 to rotate through the rotating device, so as to adjust the monitoring angle of the corresponding monitoring probe 300 and achieve single control.

[0033] Preferably, an outer wall of the connecting cylinder 204 of this embodiment is movably sleeved with a pressing frame 207. The pressing frame 207 is connected to the second connecting plate through an elastic member 206. The elastic member 206 can be an elastic telescopic rod, a guide rod, a spring, etc., which will not be elaborated here; on a side of the first connecting plate 203 facing the pressing frame 207, there is a contact piece 208 for contacting the pressing frame 207. The contact piece 208 is made of rubber material. When the pressing frame 207 contacts the contact piece 208 under the action of the elastic member 206, the sleeve 201 can be fixed to ensure that the monitoring probe 300 monitors stably; one end of the assembly seat 501 is provided with a second magnetic member 504 for driving the pressing frame 207 to contact the contact piece 208 by electrifying. When the angle of the monitoring probe 300 does not need to be adjusted, the second magnetic member 504 is in an electrified state. When the angle of the monitoring probe 300 needs to be adjusted, the second magnetic member 504 can be turned off.

[0034] In actual situations, on both sides of the second gear 503, there are attached limiting pieces. The limiting pieces are fixedly sleeved on the outer wall of the assembly seat 501. The second gear 503 can be prevented from axially moving through the limiting pieces.

[0035] Preferably, both the first magnetic member 502 and the second magnetic member 504 of this embodiment are annular and are both electrically connected to the control module. The first magnetic member 502 and the second magnetic member 504 are both electromagnetic rings, for example. The control module can control the operation of the first magnetic member 502 and the second magnetic member 504. For example, the control module is a controller, and it has control buttons for respectively controlling the opening and closing of the corresponding first magnetic member 502 and second magnetic member 504.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser displacement monitor for measuring minute deformations of a building structure, comprising at least one housing (100) with a window glass on its outer wall, characterized in that: It further includes a mounting post (600) disposed within the housing (100), a rotating post (400) disposed within the housing (100) and on one side of the mounting post (600), a rotating device disposed within the housing (100) and having an output end connected to one end of the rotating post (400), a plurality of sets of connecting brackets (200) disposed on the mounting post (600), monitoring probes (300) disposed on the connecting brackets (200), and a plurality of sets of driving components (500) disposed on the outer wall of the rotating post (400) and corresponding to the connecting brackets (200) one by one. The driving component (500) is controlled by a control module to transmit the rotational force of the rotating post (400) to the connecting bracket (200), so that the connecting bracket (200) adjusts the monitoring angle of the monitoring probe (300).

2. The laser displacement monitor for measuring the minute deformation of a building structure according to claim 1, characterized in that: The connecting bracket (200) includes: A sleeve (201) movably sleeved on the outer wall of the mounting post (600), and the monitoring probe (300) is mounted on its outer wall through a probe bracket. A first gear (202) in transmission connection with the driving component (500) is also sleeved on the outer wall of the sleeve (201); and, A first connecting plate (203) movably sleeved on the outer wall of the mounting post (600) and fixedly connected to one end of the sleeve (201). A connecting cylinder (204) is rotatably provided on the side of the first connecting plate (203) away from the sleeve (201). The connecting cylinder (204) is connected to a second connecting plate. The second connecting plate and the connecting cylinder (204) are both movably sleeved on the outer wall of the mounting post (600). A fixing member (205) is provided on the second connecting plate for fixedly connecting the second connecting plate to the mounting post (600).

3. The laser displacement monitor for measuring minute deformations of a building structure according to claim 2, wherein: The driving component (500) includes: An assembly seat (501) fixedly sleeved on the outer wall of the rotating post (400). A second gear (503) meshing with the first gear (202) is movably sleeved on the outer wall of the assembly seat (501). A first magnetic member (502) for electrically adsorbing the second gear (503) is fixedly provided on the outer wall of the assembly seat (501) at a position corresponding to the second gear (503).

4. A laser displacement monitor for measuring minute deformations of building structures according to claim 3, characterized in that: A pressing frame (207) is movably sleeved on the outer wall of the connecting cylinder (204). The pressing frame (207) is connected to the second connecting plate through an elastic member (206). A contact piece (208) for contacting the pressing frame (207) is provided on the side of the first connecting plate (203) facing the pressing frame (207). A second magnetic member (504) for electrically driving the pressing frame (207) to contact the contact piece (208) is provided at one end of the assembly seat (501).

5. The laser displacement monitor for measuring minute deformations of building structures according to claim 4, characterized in that: Both the first magnetic member (502) and the second magnetic member (504) are annular and are both electrically connected to the control module.

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