A crack width measuring instrument for bridges and tunnels

Abstract

This utility model relates to the field of crack width measurement technology, and in particular to a crack width measuring instrument for bridges and tunnels. It includes a width measuring instrument and a detection probe. A rotating frame is rotatably connected to the outer side of the detection probe, and a connecting component is installed on the outer side of the rotating frame. In this utility model, through the provided contact component, when using the detection probe to measure crack width, the operator can move the contact component to the crack on the wall, causing the rotating frame to rotate and assisting the sliding component to contact the wall. After determining the crack location, the multi-stage telescopic rod can be pressed to slide the rod, compressing the spring. The next step is to activate the detection probe's photographing function to collect crack images and measure its width. This design allows the detection probe to be parallel to the wall at a high location, accurately collecting crack data and enabling the operator to measure the width of cracks at high locations, thus improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of crack width measurement technology, specifically a crack width measuring instrument for bridges and tunnels. Background Technology

[0002] The bridge and tunnel crack width gauge is a professional testing device specifically designed to detect the width of cracks on the surface of concrete infrastructure such as bridges and tunnels. Its core function is to achieve rapid and accurate measurement of crack width through high-precision optical and image processing technology, providing key data support for structural safety assessment.

[0003] In existing technologies, when using crack width measuring instruments, engineers typically need to hold the detection probe and scan and photograph the crack. When photographing cracks at higher locations, a ladder is required. If the crack is long, the ladder needs to be moved multiple times to take multiple photos for analysis, which is inconvenient. Therefore, a crack width measuring instrument for bridges and tunnels is proposed to address the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a crack width measuring instrument for bridges and tunnels, so as to solve the problem that the existing devices mentioned in the background art are not convenient enough for measuring the width of cracks at high altitudes.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A crack width measuring instrument for bridges and tunnels includes a width measuring instrument and a detection probe. A rotating frame is rotatably connected to the outer side of the detection probe. A connecting assembly is installed on the outer side of the rotating frame. A multi-stage telescopic rod is installed at the bottom of the connecting assembly. A connecting wire is installed inside the multi-stage telescopic rod. The width measuring instrument and the detection probe are electrically connected through the connecting wire. Contact assemblies are symmetrically arranged on both sides of the rotating frame and installed on the outer side of the detection probe. The contact assembly includes a fixing frame fixedly connected to the outer side of the detection probe. A slide block is fixedly connected to one side of the fixing frame. A slide rod is slidably connected to the inner side of the slide block. A spring is provided on the outer side of the slide rod. An auxiliary sliding assembly for contacting a wall surface is installed at one end of the slide rod. An anti-slip component is installed on one side of the auxiliary sliding assembly and installed on one side of the fixing frame.

[0007] Preferably, the rotating frame has a through hole that passes through the rotating frame, and the connecting assembly includes a fixed frame disposed on the outside of the rotating frame, and the fixed frame is internally threaded with a bolt inserted into the inside of the through hole.

[0008] Preferably, the auxiliary sliding assembly includes a connecting plate fixedly connected to one end of the slide rod, and a plurality of ball seats are fixedly connected to the side of the connecting plate away from the slide rod, with rolling balls rotatably connected to the inner side of the ball seats.

[0009] Preferably, the anti-slip component includes a connecting rod fixedly connected to one side of the fixing frame, and an anti-slip pad is fixedly connected to one end of the connecting rod.

[0010] Preferably, when the anti-slip pad contacts the wall, there is a gap between the lens module of the detection probe and the wall.

[0011] Preferably, a protective component for protecting the detection probe is installed on the outside of the detection probe.

[0012] Preferably, the protection component includes multiple fixing rods fixedly connected to the outside of the detection probe, and an elastic protective frame is fixedly connected to the outside of the fixing rods.

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

[0014] 1. In this utility model, by setting up a contact component, when using the detection probe to measure the width of cracks, the operator can move the contact component to the crack on the wall, causing the rotating frame to rotate and assisting the sliding component to contact the wall. After determining the crack location, the multi-stage telescopic rod can be pressed to make the sliding rod slide and the spring compressed. The next step is to activate the detection probe's photo-taking function, which can collect crack photos and measure the width. This design allows the detection probe to be parallel to the wall at a high position, accurately collecting crack data, enabling the operator to measure the width of cracks at high positions, and improving work efficiency.

[0015] 2. In this utility model, the auxiliary sliding component makes the detection probe move more smoothly on the wall and ensures that the detection probe is always parallel to the wall, making it easier for users to observe the cracks. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the installation structure of the multi-stage telescopic pole of this utility model;

[0018] Figure 3 This is a schematic diagram of the detection probe and its connecting components of the present invention;

[0019] Figure 4 This is a schematic diagram of the contact component structure of this utility model;

[0020] Figure 5 This is a schematic diagram illustrating the use of this utility model.

[0021] In the diagram: 1. Width gauge; 2. Detection probe; 3. Rotating frame; 31. Through hole; 4. Connecting assembly; 41. Fixing frame; 42. Bolt; 5. Multi-stage telescopic rod; 6. Connecting wire; 7. Contact assembly; 71. Fixing bracket; 72. Slide seat; 73. Slide rod; 74. Spring; 75. Auxiliary sliding assembly; 751. Connecting plate; 752. Ball seat; 753. Ball; 76. Anti-slip assembly; 761. Connecting rod; 762. Anti-slip pad; 8. Protective assembly; 81. Fixing rod; 82. Elastic protective frame. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0024] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0025] Please see Figures 1-5 This utility model provides a technical solution:

[0026] A crack width measuring instrument for bridges and tunnels includes a width measuring instrument 1 and a detection probe 2. A rotating frame 3 is rotatably connected to the outside of the detection probe 2. A connecting assembly 4 is installed on the outside of the rotating frame 3. A multi-stage telescopic rod 5 is installed at the bottom of the connecting assembly 4. A connecting wire 6 is installed inside the multi-stage telescopic rod 5. The width measuring instrument 1 and the detection probe 2 are electrically connected through the connecting wire 6. Contact assemblies 7 are symmetrically arranged on both sides of the rotating frame 3 and installed on the outside of the detection probe 2. The contact assembly 7 includes a fixing frame 71 fixedly connected to the outside of the detection probe 2. A slide seat 72 is fixedly connected to one side of the fixing frame 71. A slide rod 73 is slidably connected to the inside of the slide seat 72. A spring 74 is provided on the outside of the slide rod 73. An auxiliary device for contacting the wall surface is installed at one end of the slide rod 73. The auxiliary sliding component 75 has an anti-slip component 76 installed on one side of the fixed frame 71. Through the contact component 7, when using the detection probe 2 to measure the width of cracks, the operator can move the contact component 7 to the crack on the wall, causing the rotating frame 3 to rotate and the auxiliary sliding component 75 to contact the wall. After determining the crack location, the multi-stage telescopic rod 5 can be pressed to make the sliding rod 73 slide, and the spring 74 is compressed. The next step is to activate the photo-taking function of the detection probe 2 to collect crack photos and measure the width. This design allows the detection probe 2 to be parallel to the wall at a high position, accurately collecting crack data, enabling the operator to measure the width of cracks at high positions, and improving work efficiency.

[0027] The rotating frame 3 has a through hole 31 that passes through the rotating frame 3. The connecting component 4 includes a fixed frame 41 located on the outside of the rotating frame 3. The fixed frame 41 is threaded with a bolt 42 inserted into the inside of the through hole 31. The design of the connecting component 4 makes it easier to install and remove the multi-stage telescopic rod 5. When the operator does not need to measure the width of the crack at a high place, the multi-stage telescopic rod 5 can be removed.

[0028] The auxiliary sliding assembly 75 includes a connecting plate 751 fixedly connected to one end of the slide rod 73. Multiple ball seats 752 are fixedly connected to the side of the connecting plate 751 away from the slide rod 73. Balls 753 are rotatably connected to the inner side of the ball seats 752. The design of the auxiliary sliding assembly 75 makes the detection probe 2 move more smoothly on the wall and ensures that the detection probe 2 is always parallel to the wall, making it easier for users to observe the cracks.

[0029] The anti-slip component 76 includes a connecting rod 761 fixedly connected to one side of the mounting bracket 71. One end of the connecting rod 761 is fixedly connected to an anti-slip pad 762. The anti-slip component 76 is designed to prevent the contact component 7 and the detection probe 2 from moving when the operator takes pictures of the crack, thus ensuring the stability of the picture.

[0030] When the anti-slip mat 762 comes into contact with the wall, there is a gap between the lens module of the detection probe 2 and the wall. This design can protect the lens module and prevent the lens module from directly contacting the wall.

[0031] The detection probe 2 is equipped with a protective component 8 on its outer side. The protective component 8 is designed to protect the detection probe 2 when it falls from a height.

[0032] The protection component 8 includes multiple fixed rods 81 fixedly connected to the outside of the detection probe 2. An elastic protective frame 82 is fixedly connected to the outside of the fixed rods 81. When the detection probe 2 falls, the front and rear sides of the detection probe 2 can be protected by the contact component 7 and the rotating frame 3, and its outer side can be protected by the elastic protective frame 82 connected to the fixed rods 81.

[0033] Workflow: When the device is needed, first install the multi-stage telescopic rod 5. Place the fixing frame 41 outside the rotating frame 3, align the bolt 42 horizontally with the through hole 31, and tighten the bolt 42. Then, connect the two ends of the connecting wire 6 to the width measuring instrument 1 and the detection probe 2 respectively. This completes the installation of the multi-stage telescopic rod 5. When using the detection probe 2 to measure the crack width, the operator can hold the multi-stage telescopic rod 5 and raise it to a suitable height. Then, the multi-stage telescopic rod 5 can be rotated to move the contact component 7 to the crack on the wall, so that the rotating... When frame 3 rotates, the auxiliary sliding component 75 contacts the wall. The position of the detection probe 2 can then be finely adjusted. As the contact component 7 moves, the ball bearing 753 rolls along the wall and rotates inside the ball seat 752 on one side of the connecting plate 751. Once the crack location is determined, the multi-stage telescopic rod 5 can be pressed, causing the sliding rod 73 to slide inside the sliding seat 72 on the fixed frame 71. The spring 74 is compressed until the anti-slip pad 762 at one end of the connecting rod 761 contacts the wall. The next step is to activate the photographing function of the detection probe 2 to take a picture of the crack. The system collects and measures the crack width. The multi-stage telescopic rod 5 can then be moved along the crack to collect multiple images of the crack. The design of the contact component 7 and its connecting members allows the detection probe 2 to be parallel to the wall surface at a high altitude, accurately collecting crack data. This enables the operator to measure the width of cracks at high altitudes, improving work efficiency. The design of the connecting component 4 makes the installation and removal of the multi-stage telescopic rod 5 convenient. When the operator does not need to measure the width of cracks at high altitudes, the multi-stage telescopic rod 5 can be removed. The design of the auxiliary sliding component 75 makes the movement of the detection probe 2 on the wall surface smoother and ensures that the detection probe 2 is always parallel to the wall surface, facilitating the user's observation of the crack condition. The design of the anti-slip component 76 prevents the contact component 7 and the detection probe 2 from moving when the operator is taking pictures of the crack, ensuring the stability of the pictures. The design of the protective component 8 protects the detection probe 2 when it falls from a height. When the detection probe 2 falls, its front and rear sides are protected by the contact component 7 and the rotating frame 3, and its outer side is protected by the elastic protective frame 82 connected to the fixing rod 81.

[0034] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can all be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crack width measuring instrument for bridge tunnels, comprising a width measuring instrument (1) and a detection probe (2), characterized in that: The detection probe (2) is rotatably connected to a rotating frame (3), and a connecting component (4) is installed on the outside of the rotating frame (3). A multi-stage telescopic rod (5) is installed at the bottom of the connecting component (4), and a connecting wire (6) is provided inside the multi-stage telescopic rod (5). The width measuring instrument (1) and the detection probe (2) are electrically connected through the connecting wire (6). Contact components (7) are symmetrically provided on both sides of the rotating frame (3) and installed on the outside of the detection probe (2). The contact assembly (7) includes a fixed frame (71) fixedly connected to the outside of the detection probe (2). A slide (72) is fixedly connected to one side of the fixed frame (71). A slide rod (73) is slidably connected to the inside of the slide rod (72). A spring (74) is provided on the outside of the slide rod (73). An auxiliary sliding assembly (75) for contacting the wall is installed at one end of the slide rod (73). An anti-slip assembly (76) is provided on one side of the auxiliary sliding assembly (75) and installed on one side of the fixed frame (71).

2. The crack width measuring instrument for bridge tunnels according to claim 1, characterized in that: The rotating frame (3) has a through hole (31) that passes through the rotating frame (3). The connecting component (4) includes a fixed frame (41) located on the outside of the rotating frame (3). The fixed frame (41) is threaded with a bolt (42) inserted into the inside of the through hole (31).

3. The crack width measuring instrument for bridge tunnels according to claim 1, characterized in that: The auxiliary sliding assembly (75) includes a connecting plate (751) fixedly connected to one end of the slide rod (73). A plurality of ball seats (752) are fixedly connected to the side of the connecting plate (751) away from the slide rod (73). A ball (753) is rotatably connected to the inner side of the ball seat (752).

4. A crack width measuring instrument for bridge tunnels according to claim 1, characterized in that: The anti-slip component (76) includes a connecting rod (761) fixedly connected to one side of the fixing frame (71), and an anti-slip pad (762) is fixedly connected to one end of the connecting rod (761).

5. A crack width measuring instrument for bridge tunnels according to claim 4, characterized in that: When the anti-slip mat (762) comes into contact with the wall, a gap is detected between the lens module of the probe (2) and the wall.

6. A crack width measuring instrument for bridge tunnels according to claim 1, characterized in that: The detection probe (2) is equipped with a protective component (8) on its outer side for protecting the detection probe (2).

7. A crack width measuring instrument for bridge tunnels according to claim 6, characterized in that: The protective component (8) includes multiple fixing rods (81) fixedly connected to the outside of the detection probe (2), and an elastic protective frame (82) is fixedly connected to the outside of the fixing rods (81).

Images