Bridge structure stress monitoring equipment

Abstract

The utility model relates to the field of bridge detection, and discloses a bridge structure stress monitoring device which comprises a fixing plate, a protective frame is slidably connected to the side wall of the fixing plate, a fixing assembly is arranged on the side wall of the fixing plate, a stress monitoring body is arranged at the bottom of the fixing plate, and a buffer assembly is arranged on the side wall of the stress monitoring body. The buffer assembly comprises a damper, fixing frames are fixedly connected to the side wall of the stress monitoring body, a connecting frame is fixedly connected between the fixing frames, a fixing rod is fixedly connected to the interior of the connecting frame, and a sliding block is slidably connected to the side wall of the fixing rod. According to the stress monitoring device, when the stress monitoring body is impacted, the fixing frame drives the rotating rod to rotate and pushes the sliding block to slide to extrude the first spring to buffer the impact, and the damper consumes vibration energy, so that the stress monitoring body quickly restores to be stable, and the problems that the device violently vibrates due to external impact and the measurement precision and the service life of equipment are influenced are solved; and the shock resistance of equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge detection field especially relates to a bridge structure stress monitoring equipment. BACKGROUND

[0002] In the field of bridge engineering, the safety and stability of bridge structure are very important. With the increasing traffic flow and the increasing service life of the bridge, the bridge will be affected by various complex external forces such as vehicle load, wind load and earthquake effect in the long-term use. In order to timely grasp the working state of the bridge structure and prevent the occurrence of safety accidents, it is necessary to monitor the stress of the bridge structure in real time, so the bridge structure stress monitoring equipment emerges as the times require. Through the monitoring of the bridge stress, the potential damage and safety hazards of the bridge structure can be found in time, which provides a scientific basis for the maintenance and reinforcement of the bridge and ensures the normal use of the bridge and the safety of transportation.

[0003] The existing bridge structure stress monitoring equipment mostly adopts the mode of directly installing traditional sensors on the surface or inside of the bridge structure. Common sensors such as resistance strain gauge sensors work on the basis of resistance strain effect. When the bridge structure deforms, the resistance strain gauge generates strain, which causes the resistance value to change. The stress condition of the bridge structure is reflected by measuring the change of the resistance value. The vibrating wire sensor utilizes the relationship between the vibration frequency of the steel wire and the tension. When the bridge structure stress changes, the tension of the vibrating wire changes, and the vibration frequency also changes accordingly. The stress information is obtained by measuring the frequency change. These devices collect and convert the sensor signals through the data acquisition system and transmit them to the data processing center for analysis.

[0004] When the bridge is subjected to the impact generated by heavy vehicles, the vibration caused by strong wind or other sudden external forces, the stress monitoring device will produce violent vibration. This vibration not only causes large errors in the measurement data, affects the measurement accuracy, and makes it impossible to accurately judge the real stress state of the bridge structure. Long-term violent vibration will also damage the precision components inside the equipment and reduce the service life of the equipment. Therefore, a bridge structure stress monitoring equipment is proposed to solve the above problems. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides a bridge structure stress monitoring equipment, which aims at improving the problem that the stress monitoring device in the prior art is easy to produce violent vibration under external impact, affecting the measurement accuracy and the service life of the equipment.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] A bridge structure stress monitoring equipment, including fixed plate, the fixed plate side wall is connected with the protection frame, the fixed plate side wall is provided with fixed component, the fixed plate bottom is provided with stress monitoring body, the stress monitoring body side wall is provided with buffer assembly;

[0008] The buffer assembly includes a damper, the stress monitoring body side wall is fixedly connected with the fixed frame, the fixed frame is fixedly connected with the connecting frame, the connecting frame is fixedly connected with the fixed rod, the fixed rod side wall is slidably connected with the sliding block, the fixed rod side wall is provided with the first spring, the fixed plate bottom is fixedly connected with the fixed frame, the fixed frame is rotatably connected with the rotating rod, the rotating rod side wall is rotatably connected in the sliding block side wall, and the damper is fixedly installed between the fixed plate and the fixed frame.

[0009] Further, the fixed component includes a fixed block, the fixed block side wall is fixedly connected with the protection frame side wall, and the fixed plate bottom is fixedly connected with the connecting block.

[0010] Further, the connecting block side wall is fixedly connected with a sleeve, and the sleeve is fixedly connected with a sliding rod in the sleeve.

[0011] Further, the sliding rod side wall is slidably connected with a push plate, and the sliding rod side wall is provided with a second spring.

[0012] Further, one end of the second spring is fixedly connected with the push plate side wall, and the other end of the second spring is fixedly connected with the sleeve.

[0013] Further, the push plate side wall is fixedly connected with a clamping column, the clamping column is slidably connected with the sliding rod side wall in the clamping column, and the clamping column side wall is slidably connected in the fixed block and the connecting block.

[0014] Further, the clamping column side wall is threadedly connected with a mounting block, and the mounting block side wall is attached to the connecting block side wall.

[0015] Further, one end of the first spring is fixedly connected with the sliding block side wall, and the other end of the first spring is fixedly connected with the connecting frame.

[0016] The utility model has the advantages of the following beneficial effects:

[0017] 1. The utility model discloses a stress monitoring body is impacted, drives fixed frame to make rotary rod rotate, pushes the sliding block and slides along the fixed rod lateral wall, extrudes the first spring buffer impact, and damper consumes vibration energy, restores stable to stress monitoring body, solves the problem that stress monitoring device is easy to produce violent vibration under the outside impact, influences the measuring accuracy and equipment service life, and the anti -impact performance and stability of equipment are improved through the above technical scheme.

[0018] 2. The utility model discloses when installing the protection frame, push the push -plate and drive the card post to slide, compress the second spring, insert the fixed block into the connecting block, loosen the push -plate, and the second spring resets and makes the card post card into the fixed block inside, and the installation block is fixed to the card post, realizes the fixation of protection frame and fixed plate, solves the problem that the traditional protection frame adopts the bolt direct fixation, and needs to be assisted by the tool multiple times when installing, and the dismounting process is complicated, and the protection frame installation and dismounting efficiency are improved through the above technical scheme. DRAWINGS

[0019] Figure 1 It is a bridge structure stress monitoring equipment's three -dimensional schematic view that the utility model proposes;

[0020] Figure 2 It is a buffer structure schematic view of a bridge structure stress monitoring equipment that the utility model proposes;

[0021] Figure 3 It is the protection frame internal structure schematic view of a bridge structure stress monitoring equipment that the utility model proposes;

[0022] Figure 4 It is the protection frame fixed structure schematic view of a bridge structure stress monitoring equipment that the utility model proposes;

[0023] Figure 5 It is Figure 4 The enlarged view of A in the middle.

[0024] Legend:

[0025] 1, fixed plate, 2, protection frame, 3, stress monitoring body, 4, fixed frame, 5, connecting frame, 6, fixed rod, 7, sliding block, 8, first spring, 9, fixed frame, 10, rotary rod, 11, damper, 12, fixed block, 13, connecting block, 14, sleeve, 15, sliding rod, 16, push -plate, 17, second spring, 18, card post, 19, installation block. DETAILED DESCRIPTION

[0026] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] With reference to Figures 1-3 The utility model provides an embodiment: a bridge structure stress monitoring equipment, fixed plate 1 is provided with fixed component on the side wall, and the bottom of fixed plate 1 is provided with stress monitoring body 3, and the side wall of stress monitoring body 3 is provided with buffer assembly, buffer assembly includes damper 11, and damper 11 consumes vibration energy through the friction and flow of internal medium when stress monitoring body 3 vibrates, and the vibration is quickly attenuated, and stress monitoring body 3 recovers as soon as possible, and the side wall of stress monitoring body 3 is fixedly connected with fixed frame 4, and fixed frame 4 is fixedly connected with connecting frame 5, and connecting frame 5 is fixedly connected with fixed rod 6 in the inside, and the side wall of fixed rod 6 is slidably connected with sliding block 7, and the side wall of fixed rod 6 is equipped with first spring 8, and first spring 8 generates reverse elastic force when sliding block 7 slides by utilizing the elastic deformation, and the impact that stress monitoring body 3 receives is buffered, and vibration is reduced, and the bottom of fixed plate 1 is fixedly connected with fixed support 9, and fixed support 9 is rotatably connected with rotating rod 10 in the inside, and the side wall of rotating rod 10 is rotatably connected on the side wall of sliding block 7, and damper 11 is fixedly installed between fixed plate 1 and fixed frame 4, and one end of first spring 8 is fixedly connected on the side wall of sliding block 7, and the other end of first spring 8 is fixedly connected in the inside of connecting frame 5.

[0028] With reference to Figures 3-5The fixed assembly comprises a fixed block 12 fixedly connected to the side wall of the protective frame 2, a connecting block 13 fixedly connected to the bottom of the fixed plate 1, the side wall of the fixed block 12 being slidably connected to the inside of the connecting block 13, a sleeve 14 fixedly connected to the side wall of the connecting block 13, a slide rod 15 fixedly connected to the inside of the sleeve 14, a push plate 16 slidably connected to the side wall of the slide rod 15, a second spring 17 sleeved on the side wall of the slide rod 15, one end of the second spring 17 being fixedly connected to the side wall of the push plate 16 and the other end of the second spring 17 being fixedly connected to the inside of the sleeve 14, a clamping column 18 fixedly connected to the side wall of the push plate 16, the clamping column 18 being slidably connected to the side wall of the slide rod 15, and the side wall of the clamping column 18 being slidably connected to the inside of the fixed block 12 and the connecting block 13, the push plate 16 being slid along the slide rod 15 to compress the second spring 17, the clamping column 18 being inserted into or pulled out of the fixed block 12 and the connecting block 13, the fixed plate 1 and the protective frame 2 being fixed and disassembled, the side wall of the clamping column 18 being threadedly connected with a mounting block 19, the side wall of the mounting block 19 being attached to the side wall of the connecting block 13, and the threaded connection structure of the clamping column 18 and the mounting block 19 being used for further fixing the clamping column 18 to prevent loosening, so that the effect of ensuring the fixing stability of the protective frame 2 is achieved.

[0029] Working principle: when the stress monitoring body 3 is impacted by the outside, the fixed frame 4 is driven to move, the rotating rod 10 is rotated between the fixed frame 9 and the sliding block 7, the sliding block 7 is slid along the side wall of the fixed rod 6 and the first spring 8 is compressed, the first spring 8 generates a reverse spring force to buffer the impact, the damper 11 consumes vibration energy through the friction and flow of the internal medium between the fixed plate 1 and the fixed frame 4, the multiple components work cooperatively to quickly attenuate vibration and restore the stability of the stress monitoring body 3.

[0030] When the protective frame 2 is installed, the push plate 16 is pushed to drive the clamping column 18 to slide along the side wall of the slide rod 15, the second spring 17 is compressed into the inside of the sleeve 14, then the fixed block 12 is inserted into the inside of the connecting block 13, the push plate 16 is loosened, the second spring 17 is reset to push the push plate 16, the clamping column 18 is clamped into the inside of the fixed block 12, and then the mounting block 19 is tightened to further fix the clamping column 18, so that the fixed plate 1 and the protective frame 2 are firmly fixed.

[0031] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement for some technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A bridge structure stress monitoring device, comprising a fixing plate (1), characterized in that: The side wall of the fixed plate (1) is slidably connected to a protective frame (2), the side wall of the fixed plate (1) is provided with a fixing component, the bottom of the fixed plate (1) is provided with a stress monitoring body (3), and the side wall of the stress monitoring body (3) is provided with a buffer component. The buffer assembly includes a damper (11), a fixed frame (4) is fixedly connected to the side wall of the stress monitoring body (3), a connecting frame (5) is fixedly connected between the fixed frames (4), a fixed rod (6) is fixedly connected inside the connecting frame (5), a slider (7) is slidably connected to the side wall of the fixed rod (6), a first spring (8) is sleeved on the side wall of the fixed rod (6), a fixed frame (9) is fixedly connected to the bottom of the fixed plate (1), a rotating rod (10) is rotatably connected inside the fixed frame (9), the side wall of the rotating rod (10) is rotatably connected to the side wall of the slider (7), and the damper (11) is fixedly installed between the fixed plate (1) and the fixed frame (4).

2. The bridge structure stress monitoring device according to claim 1, characterized in that: The fixing component includes a fixing block (12), the side wall of the fixing block (12) is fixedly connected to the side wall of the protective frame (2), and a connecting block (13) is fixedly connected to the bottom of the fixing plate (1), and the side wall of the fixing block (12) is slidably connected inside the connecting block (13).

3. The bridge structure stress monitoring device according to claim 2, characterized in that: A sleeve (14) is fixedly connected to the side wall of the connecting block (13), and a slide rod (15) is fixedly connected inside the sleeve (14).

4. The bridge structure stress monitoring device according to claim 3, characterized in that: The slide rod (15) is slidably connected to a lever plate (16) on its side wall, and a second spring (17) is sleeved on the side wall of the slide rod (15).

5. A bridge structure stress monitoring device according to claim 4, characterized in that: One end of the second spring (17) is fixedly connected to the side wall of the lever plate (16), and the other end of the second spring (17) is fixedly connected to the inside of the sleeve (14).

6. A bridge structure stress monitoring device according to claim 5, characterized in that: The side wall of the lever (16) is fixedly connected to a locking post (18), the locking post (18) is slidably connected to the side wall of the slide rod (15), and the side wall of the locking post (18) is slidably connected to the inside of the fixing block (12) and the connecting block (13).

7. A bridge structure stress monitoring device according to claim 6, characterized in that: The side wall of the locking post (18) is threadedly connected to the mounting block (19), and the side wall of the mounting block (19) is attached to the side wall of the connecting block (13).

8. A bridge structure stress monitoring device according to claim 1, characterized in that: One end of the first spring (8) is fixedly connected to the side wall of the slider (7), and the other end of the first spring (8) is fixedly connected to the inside of the connecting frame (5).

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