Bridge strain monitor

Abstract

The utility model discloses a bridge strain monitor, which belongs to the technical field of bridge monitoring equipment, and comprises a surface strain gauge main body and a mounting seat, the mounting seat is provided with a through U-shaped notch, the open end of the mounting seat is provided with a connecting block, the inner side of the mounting seat is provided with a sliding notch, and the sliding notch is provided with a sliding groove. The surface strain gauge main body is provided with a convex block connected with the sliding notch; the end part of the mounting seat is provided with an insertion plate for limiting the surface strain gauge main body in the notch of the mounting seat; the bridge strain detection device is convenient to operate and high in practicability, and effectively solves the problems that the strain timing operation is complicated and the replacement efficiency is low in the use process of the existing bridge strain detection device.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge monitoring equipment, in particular to a bridge strain monitoring instrument. Background Art

[0002] During the construction and operation of bridges, the operating status of bridges is always a concern of the staff, and strain is an important parameter of the operating status of bridges. At present, most of the bridges are monitored by sensor technology. The most widely used strain gauge is placed in a mounting seat with a protective tube, and then the end of the mounting seat is tightened to fix the strain gauge. During use, the mounting seat is fixed to the bottom of the bridge by screws or strong glue. However, the existing bridge strain monitor needs to unscrew the locking screws on the mounting seat before replacing the strain gauge. After the replacement is completed, the screws need to be tightened again to lock the strain gauge. The operation is cumbersome and the replacement efficiency is low.

[0003] Chinese patent CN219656854U discloses a bridge strain monitoring device, comprising: a protective box, which is fixedly connected to the bridge, the top of the protective box is open, and the open top is in contact with the bottom surface of the bridge, and a switch door is provided on the front side of the protective box; a supporting column assembly, the bottom end of which is fixedly arranged on the inner bottom wall of the protective box, and the outer wall of the supporting column assembly is provided with a hanging ring; a lifting rocker, the middle part of which is rotatably connected to the top of the supporting column assembly, one end of the lifting rocker is fixed with a placement seat, a strain detection sensor is placed on the placement seat, and the other end of the lifting rocker is provided with a manual handle; a hanging rod, one end of which is hingedly connected to the position of the lifting rocker near the manual handle, and the other end of the hanging rod is provided with a hook, and the hook is hooked with the hanging ring. Chinese patent CN208635772U discloses a bridge strain monitoring sensor device, including a bridge body and a bridge strain monitoring sensor system, wherein a support column is fixedly installed in the middle of the bridge body, a support plate is movably connected to the back of the support column, and locking screws are threadedly sleeved on both sides of the front of the support column, and the other end of the locking screw passes through and extends to the back of the support column and is threadedly sleeved with the outer surface of the support plate. However, the existing bridge strain detection device has the problem of complex operation and low replacement efficiency when replacing the strain gauge during use; therefore, it is necessary for this application to provide a bridge strain monitor that is easy to operate when replacing the strain gauge during use. Utility Model Content

[0004] The utility model aims to overcome the problems of complicated operation and low replacement efficiency when replacing strain gauges during use of existing bridge strain detection devices. The utility model provides a bridge strain monitoring instrument.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a bridge strain monitor, including a surface strain gauge body and a mounting seat, the mounting seat is provided with a through U-shaped slot, the open end of the mounting seat is provided with a connecting block, and a sliding slot is provided on the inner side of the mounting seat, the surface strain gauge body is provided with a protrusion connected to the sliding slot, and the end of the mounting seat is provided with a plug plate for limiting the surface strain gauge body in the slot of the mounting seat.

[0006] Furthermore, two mounting seats are provided, which are connected by a connecting strip, so that the surface strain gauge body is placed between the mounting seats in a suspended manner, and a wireless generator connected to the surface strain gauge body is connected between the connecting strips through a placement frame.

[0007] Furthermore, a mounting hole for connecting to a bridge is reserved on the connecting block, and the connecting block is arranged higher than the opening end of the mounting seat, that is, the top surface of the connecting block is higher than the horizontal plane of the opening end of the mounting seat, and the bottom end of the connecting block is lower than the horizontal plane of the opening end of the mounting seat.

[0008] Furthermore, a buffer contact layer is provided on the contact surface between the plug plate and the surface strain gauge body, and the buffer contact layer is made of sponge or foam material.

[0009] Furthermore, a protection net is provided on the outer side of the connecting strip to protect the main body of the surface strain gauge.

[0010] The utility model adopts a bridge strain monitoring instrument, which has the following beneficial effects:

[0011] The utility model discloses a mounting seat with a sliding slot on the inner side, a surface strain gauge body with a convex block connected to the sliding slot, and an end portion of the mounting seat with a plug plate for limiting the surface strain gauge body in the slot of the mounting seat. The coordinated use of the sliding slot, the convex block and the plug plate can facilitate the rapid replacement of the strain gauge, improve the replacement efficiency, and facilitate later maintenance. The utility model is easy to operate and has strong practicality, and effectively solves the problems of complex operation and low replacement efficiency when replacing strain gauges during use of the existing bridge strain detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the bridge strain monitoring instrument of the utility model.

[0013] Figure 2 It is a left-side structural schematic diagram of the mounting base of the bridge strain monitor of the utility model.

[0014] In the figure, 1. surface strain gauge body; 2. mounting seat; 3. U-shaped notch; 4. connecting block; 5. sliding notch; 6. protrusion; 7. connecting strip; 8. wireless generator; 9. plug-in board; 10. protective net. DETAILED DESCRIPTION

[0015] The technical solution of the utility model is described clearly and completely below in conjunction with the specific embodiments of the utility model. The described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0016] Example 1

[0017] like Figure 1-2 As shown, a bridge strain monitor provided by the utility model comprises a surface strain gauge body 1 and a mounting base 2. The surface strain gauge body 1 of the present application comprises a vibrating-wire strain gauge, and the vibrating-wire strain gauge is connected to a wireless vibrating-wire transmitter through a line, that is, the monitoring data is transmitted to a remote control end through a wireless transmission module. The wireless transmission mode of the present application adopts Zigbee transmission, which can greatly improve the data transmission distance, remote data reception, and convenient and fast collection of working condition data; the mounting base 2 described in the present application is provided with a through U-shaped notch 3, and the open end of the mounting base 2 is provided with a connecting block 4, and a mounting hole for connecting to a bridge is reserved on the connecting block 4, that is, the mounting base 2 with the connecting block 4 is fixedly connected to the bridge by screws, and the connecting block 4 is arranged higher than the open end of the mounting base 2, that is, the top end surface of the connecting block 4 is higher than the horizontal plane of the open end of the mounting base 2, and the bottom end of the connecting block 4 is lower than the mounting base 2. The horizontal surface of the open end of the seat 2 is convenient for disassembly or replacement of the surface strain gauge body 1, and at the same time protects the surface strain gauge body 1 in the mounting seat 2, reducing the contact wear between the surface of the surface strain gauge body 1 and the contact surface at the bottom of the bridge during disassembly or replacement; and a sliding slot 5 is provided on the inner side of the mounting seat 2, and a protrusion 6 connected to the sliding slot 5 is provided on the surface strain gauge body 1. Through the setting of the sliding slot 5, it plays a guiding role in the installation of the surface strain gauge body 1, and improves its replacement efficiency. The end of the mounting seat 2 is provided with a plug plate 9 for limiting the surface strain gauge body 1 in the slot of the mounting seat 2, and the contact surface between the plug plate 9 and the surface strain gauge body 1 is provided with a buffer contact layer, and the buffer contact layer is made of sponge or foam material, which protects the two ends of the surface strain gauge body 1 and improves the service life of the surface strain gauge body 1.

[0018] Example 2

[0019] On the basis of the above embodiment, this embodiment facilitates the maintenance of the surface strain gauge body 1. Two mounting seats 2 are provided, and the mounting seats 2 are connected by a connecting strip 7, so that the surface strain gauge body 1 is placed between the mounting seats 2 in a suspended manner, and a wireless generator 8 connected to the surface strain gauge body 1 is connected between the connecting strips 7 through a placement frame.

[0020] Example 3

[0021] On the basis of the above-mentioned embodiment, in order to improve the service life of the surface strain gauge body 1 , a protection net 10 for protecting the surface strain gauge body 1 is further provided on the outer side of the connecting strip 7 described in the present application.

[0022] During use of the utility model, the connecting block is first fixedly connected to the bottom end surface of the bridge by screws, so that the mounting seat 2 is fixedly connected to the bottom end surface of the bridge, and then the initial reading of the surface strain gauge body 1 is adjusted, the plug plate 9 on the mounting seat 2 is pulled out, the protrusion 6 of the surface strain gauge body 1 is combined with the sliding groove 5, and then the surface strain gauge body 1 is pushed in, and finally the plug plate 9 is reset; when the surface strain gauge body 1 needs to be replaced in this application, it is only necessary to pull out the surface strain gauge body 1 and replace it, thereby effectively solving the problem of complex operation and low replacement efficiency when replacing the strain gauge during use of the existing bridge strain detection device.

[0023] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A bridge strain monitor, comprising a surface strain gauge body (1) and a mounting seat (2), characterized in that: The mounting seat (2) is provided with a through U-shaped notch (3), the open end of the mounting seat (2) is provided with a connecting block (4), and a sliding notch (5) is provided on the inner side of the mounting seat (2), the surface strain gauge body (1) is provided with a protrusion (6) connected to the sliding notch (5), and the end of the mounting seat (2) is provided with a plug plate (9) for limiting the surface strain gauge body (1) in the notch of the mounting seat (2).

2. The bridge strain monitor according to claim 1, characterized in that: Two mounting seats (2) are provided, and the mounting seats (2) are connected via a connecting strip (7), so that the surface strain gauge body (1) is placed between the mounting seats (2) in a suspended manner, and a wireless generator (8) connected to the surface strain gauge body (1) is connected between the connecting strips (7) via a placement frame.

3. The bridge strain monitor according to claim 1, characterized in that: The connection block (4) is provided with a mounting hole for connection with the bridge, and the connection block (4) is arranged higher than the open end of the mounting seat (2), that is, the top end surface of the connection block (4) is higher than the horizontal plane of the open end of the mounting seat (2), and the bottom end of the connection block (4) is lower than the horizontal plane of the open end of the mounting seat (2).

4. The bridge strain monitor according to claim 1, characterized in that: A buffer contact layer is provided on the contact surface between the plug plate (9) and the surface strain gauge body (1); the buffer contact layer is made of sponge or foam material.

5. The bridge strain monitor according to claim 2, characterized in that: A protective net (10) for protecting the surface strain gauge body (1) is also provided on the outer side of the connecting strip (7).

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