CN218995227U - Performance monitoring device for girder bridge - Google Patents

Abstract

The utility model relates to the technical field of beam bridge hinge joint detection, in particular to a performance monitoring device for a beam bridge, which comprises a first beam plate and a second beam plate, wherein the bottom of the first beam plate is movably connected with a mounting plate through a fastening screw, the bottom of the mounting plate is provided with a mounting component, the bottom of the mounting component is provided with an adjusting component, one side of the adjusting component is fixedly connected with a monitoring component, the mounting component comprises a mounting seat, one side of the mounting seat is fixedly connected with one end of a spring, the improved performance monitoring device is characterized in that the adjusting component and the monitoring component are mounted on the mounting plate through the mounting component, compared with the traditional magnetic mounting, the magnetic mounting is not influenced by rust on the surface of the mounting plate, the service life is longer, the distance between a contact and the mounting plate can be adjusted through a second adjusting cylinder, a second limiting plate and a cross rod, the contact can avoid the uneven position of the bottom of the second beam plate during mounting, and the mounting is more convenient to mount.

Description

Performance monitoring device for girder bridge

technical field

The utility model relates to the technical field of girder bridge hinge joint detection, in particular to a performance monitoring device for girder bridges.

Background technique

Beam bridges are bridges in which the main girder mainly subjected to bending is used as the load-bearing member. The main girder can be a solid web girder or a truss girder. The solid web girder has a simple structure and is more convenient to manufacture, erect and maintain. It is widely used in medium and small span bridges , but it is not economical in terms of material utilization. The rods of the truss beam bear the axial force, the material can be fully utilized, the weight is light, and the spanning capacity is large. It is mostly used to build long-span bridges. According to the static system of the main beam, it is divided into simple Support girder bridge, continuous girder bridge and cantilever girder bridge, continuous girder bridge is formed by connecting multiple plate girders, there will be hinge joints between two adjacent plate girders, hinge joints refer to prefabricated plate girders in bridge engineering The post-filling joint between the two slab girders is carried out before the bridge deck pavement construction after the slab girder is installed. The normal hinge joint is helpful for the slab girder to transmit the load. When the load is applied to one side of the slab girder, It will be transmitted to the plate girder on the other side through the dumpling joint, and each plate girder jointly bears the load applied to the bridge.

However, in the existing girder bridges, due to the construction quality or long-term use, the hinge joints of the plate girder bridges will be damaged or destroyed. After the hinge joints are damaged, the hinge joints cannot transmit the load, and the single girder of the plate girder will easily cause the plate girder to collapse. , therefore, joint damage and damage will affect the safety of the girder bridge. In order to ensure the safe use of the bridge, it is the main task of the maintenance of the joint plate girder bridge to detect the joints and repair the damaged or damaged hinge joints. One, therefore, it is necessary to use the girder bridge performance monitoring device to monitor the hinge joints of the girder bridge in real time, so as to find the damaged hinge joints in time.

Existing patent (publication number: CN202305459U) discloses hinge joint detection device of hinged slab girder bridge, is characterized in that, comprises resistive displacement gauge, and described resistive displacement gauge has retractable pull rod; Described resistive displacement gauge is installed on the plate girder on one side of the hinge; the tie rod is in contact with the plate girder on the other side of the hinge. The detection device in the utility model is installed on the bottom surface of the hinged slab girder bridge. It does not need to close the traffic, and can randomly use the load of the vehicle to make the detection convenient. The utility model saves detection time and cost, and can accurately detect the hinge joint. The degree of damage provides a basis for accurately and reasonably determining the repair plan. The inventor found the following problems in the prior art in the process of realizing the utility model: 1. In this technical solution, the magnetic watch base is magnetically adsorbed on the surface of the steel plate, but the steel plate will rust and produce bumps due to the influence of the environment, resulting in the magnetic watch base 2. When the traditional performance monitoring device is installed, it is inconvenient to adjust the distance between the mounting seat and the contact according to the actual situation when the bottom of the beam slab is uneven or the width of the hinge joint is too large. .

Utility model content

The purpose of this utility model is to provide a performance monitoring device for girder bridges, so as to solve the above-mentioned problem in the background technology that the surface of the steel plate in the existing monitoring device is rusted and produces bumps, which leads to the drop of the magnetic watch base and cannot continue to monitor the hinge joints of the girder bridge. and when the traditional performance monitoring device is installed, it is inconvenient to adjust the distance between the mounting seat and the contact according to the actual situation when the bottom of the beam plate is uneven or the width of the hinge joint is too large. In order to achieve the above purpose, the utility model provides the following technical solutions: a performance monitoring device for beam bridges, including a first beam plate and a second beam plate, the bottom of the first beam plate is movably connected with a mounting plate through fastening screws, the The bottom of the installation plate is provided with an installation assembly, the bottom of the installation assembly is provided with an adjustment assembly, and one side of the adjustment assembly is fixedly connected with a monitoring assembly;

The mounting assembly includes a mounting base, one side of the mounting base is fixedly connected to one end of the spring, and the other end of the spring is fixedly connected to a fixing pin, and one end of the fixing pin passes through the middle of the mounting column, and the The mounting column is plugged into the mounting hole.

Further preferably, the adjustment assembly includes a first adjustment cylinder and a second adjustment cylinder, one side of the first adjustment cylinder is movably connected with an adjustment rod, and the other side of the first adjustment cylinder is fixedly connected with a limit rod , the limit rod runs through the middle of one side of the first limit plate, the bottom of the first limit plate is fixedly connected with an L-shaped connecting rod, and the inner middle part of the second adjustment cylinder is movably connected with a second limit One side of the second limiting plate is fixedly connected with a cross bar.

Further preferably, one side of the second adjusting cylinder is connected to one end of the L-shaped connecting rod, and the second adjusting cylinder forms a lateral telescopic structure through the second limiting plate and the cross bar.

Further preferably, the monitoring assembly includes a resistive displacement meter fixedly installed at one end of the crossbar, a measuring rod is movably connected to the middle of the resistive displacement meter, and a contact is fixedly connected to the top end of the measuring rod.

Further preferably, the first limiting plate forms a limiting structure through a limiting rod.

Further preferably, the installation hole is opened in the middle of the bottom surface of the installation base.

Compared with the prior art, the utility model has the beneficial effects:

In the utility model, the adjusting component and the monitoring component are installed on the mounting plate by installing the component. Specifically, the mounting column is inserted into the mounting hole, and when the mounting column is inserted, the fixing pin is pulled outward, and the fixing pin will pull the spring Long, when the mounting column is inserted into the mounting hole, loosen the fixing pin and reset the fixing pin under the action of the spring, insert it into the hole in the middle of the mounting column and fix the mounting column in the mounting seat to complete the installation. Compared with the traditional magnetic installation method, it is not affected by the rust on the surface of the installation plate, and it is more stable and has a longer service life.

In the utility model, the vertical distance between the contact and the second beam plate can be adjusted through the cooperation between the first adjustment cylinder, the adjustment rod, the limit rod and the first limit plate, so that the contact can just touch the person At the bottom of the second beam plate, the contact is then fixed, and the second adjustment cylinder, the second limit plate and the cross bar cooperate with each other to make the distance between the contact and the mounting plate adjustable, so that the contact During installation, the uneven position at the bottom of the second beam plate can be avoided, which is more convenient for installation.

Description of drawings

Fig. 1 is a schematic view of the front view of the utility model;

Fig. 2 is the schematic diagram of the front section structure of the utility model;

Fig. 3 is the schematic diagram of enlarged structure at A place in Fig. 2 of the present utility model;

Fig. 4 is a schematic diagram of the enlarged structure at B in Fig. 2 of the present utility model.

In the figure: 1, the first beam plate; 2, the second beam plate; 3, the installation plate; 4, the installation component; 401, the installation seat; 402, the spring; 403, the fixing pin; 404, the installation column; 405, the installation hole ;5, adjustment assembly; 501, first adjustment cylinder; 502, second adjustment cylinder; 503, adjustment rod; 504, limit rod; 505, first limit plate; 506, L-shaped connecting rod; 507, second Limiting plate; 508, cross bar; 6, monitoring component; 601, resistive displacement meter; 602, measuring rod; 603, contact.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1 to Fig. 4, the utility model provides the technical solution: the performance monitoring device for the girder bridge, including the first girder plate 1 and the second girder plate 2, the bottom of the first girder plate 1 is movably connected with the installation by fastening screws plate 3, the bottom of the mounting plate 3 is provided with an installation component 4, the bottom of the installation component 4 is provided with an adjustment component 5, and one side of the adjustment component 5 is fixedly connected with a monitoring component 6;

The mounting assembly 4 includes a mounting base 401, one side of the mounting base 401 is fixedly connected to one end of a spring 402, and the other end of the spring 402 is fixedly connected to a fixing pin 403, and one end of the fixing pin 403 runs through the middle of the mounting column 404, The mounting post 404 is inserted into the mounting hole 405 .

In this embodiment, as shown in FIG. 2 , FIG. 3 and FIG. 4 , the adjustment assembly 5 includes a first adjustment cylinder 501 and a second adjustment cylinder 502 , an adjustment rod 503 is movably connected to one side of the first adjustment cylinder 501 , and The other side inside the first adjustment cylinder 501 is fixedly connected with a limit rod 504, the limit rod 504 runs through the middle of one side of the first limit plate 505, and the bottom of the first limit plate 505 is fixedly connected with an L-shaped connecting rod 506 A second limiting plate 507 is movably connected to the inner middle part of the second adjusting cylinder 502 , and a cross bar 508 is fixedly connected to one side of the second limiting plate 507 .

In this embodiment, as shown in FIG. 4 , one side of the second adjusting cylinder 502 is connected to one end of the L-shaped connecting rod 506 , and the second adjusting cylinder 502 is formed by a second limiting plate 507 and a cross bar 508 Horizontal expansion and contraction structure: the cross bar 508 can be expanded and contracted in the second adjustment barrel 502 to adjust the distance between the installation plate 3 and the contact 603 .

In this embodiment, as shown in Figures 1 and 2, the monitoring assembly 6 includes a resistive displacement meter 601 fixedly installed at one end of the cross bar 508, the middle part of the resistive displacement meter 601 is movably connected with a measuring rod 602, and the measuring rod 602 The top end is fixedly connected with a contact 603 .

In this embodiment, as shown in FIG. 3 , the first limiting plate 505 constitutes a limiting structure through the limiting rod 504 ; the limiting rod 504 can prevent the first limiting plate 505 from rotating together with the rotation of the adjusting rod 503 .

In this embodiment, as shown in FIGS. 2 and 3 , the mounting hole 405 is provided in the middle of the bottom surface of the mounting seat 401; the mounting column 404 can be plugged into the mounting hole 405, and then the fixing pin 403 is inserted into the mounting column 404. In the middle hole, the adjustment component 5 can be installed, which is more stable than the traditional magnetic installation method.

The use method and advantages of the utility model: when the performance monitoring device for the girder bridge is rolled up, the working process is as follows:

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, first, the mounting plate 3 is fixed on the bottom of the first beam plate 1 by screws, and then the mounting column 404 is inserted into the mounting hole 405 at the bottom of the mounting base 401. When inserting the mounting column 404, pull the fixing pin 403 outward, and the fixing pin 403 will elongate the spring 402. When the mounting column 404 is inserted into the mounting hole 405, loosen the fixing pin 403 and reset the fixing pin 403 under the action of the spring 402 , insert it into the hole in the middle of the mounting column 404 and fix the mounting column 404 in the mounting seat 401 to complete the installation. Compared with the traditional magnetic installation, this installation method is not affected by the rust on the surface of the mounting plate 3. It is more stable and has a longer service life. When it is necessary to adjust the horizontal position of the contact 603, directly pull the crossbar 508 to drive the second limit plate 507 to move in the second adjustment cylinder 502. When the crossbar 508 moves, it will pass through the resistance The displacement meter 601 and the measuring rod 602 drive the contact 603 to move synchronously, so that the contact 603 is aligned with the flat bottom of the second beam plate 2, and then the adjusting rod 503 is turned to drive the first limit plate 505 to move. When the limit plate 505 moves up and down, it will drive the second adjustment cylinder 502 to rise and fall synchronously through the L-shaped connecting rod 506, so as to drive the contact 603 to rise and fall, so that the contact 603 just contacts the bottom of the second beam plate 2, and then the contact 603 can be fixed on the bottom of the second beam plate 2.

The basic principles, main features and advantages of the present utility model have been shown and described above. Technical staff in this industry should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions are only preferred examples of the utility model, and are not used to limit the utility model, without departing from the utility model Under the premise of the new spirit and scope, the utility model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (6)

1. A performance monitoring device for beam bridges, comprising a first beam plate (1) and a second beam plate (2), characterized in that: the bottom of the first beam plate (1) is movably connected with a mounting plate by fastening screws (3), the bottom of the mounting plate (3) is provided with a mounting assembly (4), the bottom of the mounting assembly (4) is provided with an adjustment assembly (5), and one side of the adjustment assembly (5) is fixedly connected There is a monitoring component (6); The mounting assembly (4) includes a mounting base (401), one side of the mounting base (401) is fixedly connected to one end of a spring (402), and the other end of the spring (402) is fixedly connected to a fixed pin ( 403), one end of the fixing pin (403) passes through the middle of the mounting column (404), and the mounting column (404) is plugged into the mounting hole (405). 2. The performance monitoring device for girder bridges according to claim 1, characterized in that: the adjustment assembly (5) includes a first adjustment cylinder (501) and a second adjustment cylinder (502), and the first adjustment cylinder One side of the inside of (501) is movably connected with an adjustment rod (503), and the other side of the inside of the first adjustment cylinder (501) is fixedly connected with a limit rod (504), and the limit rod (504) runs through the first The middle part of one side of the limiting plate (505), the bottom of the first limiting plate (505) is fixedly connected with an L-shaped connecting rod (506), and the inner middle part of the second adjusting cylinder (502) is movably connected with a second Two limiting plates (507), one side of the second limiting plate (507) is fixedly connected with a cross bar (508). 3. The girder bridge performance monitoring device according to claim 2, characterized in that: one side of the second adjusting cylinder (502) is connected to one end of the L-shaped connecting rod (506), and the second The adjusting cylinder (502) forms a lateral telescopic structure through the second limiting plate (507) and the cross bar (508). 4. The girder bridge performance monitoring device according to claim 1, characterized in that: the monitoring component (6) includes a resistive displacement meter (601) fixedly installed at one end of the cross bar (508), and the resistive displacement meter A measuring rod (602) is movably connected to the middle of the displacement meter (601), and a contact (603) is fixedly connected to the top of the measuring rod (602). 5. The performance monitoring device for girder bridges according to claim 1, characterized in that: the first limiting plate (505) constitutes a limiting structure through a limiting rod (504). 6. The performance monitoring device for girder bridges according to claim 1, characterized in that: the installation hole (405) is opened in the middle of the bottom surface of the installation base (401).

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