Bridge tunnel crack width measuring machine

Abstract

The utility model discloses a bridge tunnel crack width measuring machine, which relates to the technical field of crack width measuring machines and comprises a width measuring machine host, the top of the width measuring machine host is connected with an electric wire, one end of the electric wire far away from the width measuring machine host is connected with a camera, and a bridge tunnel crack picture shot by the camera is transmitted to the width measuring machine host. The width measuring machine host uploads the data to a mobile phone end in a wireless mode, and the camera is fixed to the rear side of the width measuring machine host through a height adjusting assembly. According to the utility model, the stability of the camera in the measurement process is ensured through the arranged spherical holder, so that the deviation of the measurement position is prevented, the measurement precision of the device can be ensured, the working difficulty of measurement personnel is reduced, and the wire winding assembly is utilized to wind the wire, so that the wire is prevented from being knotted due to scattering.

Description

Technical Field

[0001] The utility model relates to the technical field of crack width measuring machines, in particular to a bridge and tunnel crack width measuring machine. Background Art

[0002] The crack width measuring machine is a measuring and detecting device for crack widths of bridges, tunnels, walls, concrete pavements, metal surfaces, etc. It uses modern electronic imaging technology to photograph the cracks on the surface of the object being measured through a camera, and wirelessly sends the photographed crack photos to a mobile phone, which is displayed on the mobile phone screen. Finally, the crack width is measured by an electronic ruler on the mobile phone screen to obtain accurate data on the crack width. Because cracks in bridges and tunnels not only exist near the ground, but may also appear at the top of the bridge and tunnel. Due to their high altitude, surveyors need to climb to the location of the cracks with the help of climbing equipment. There are safety hazards in climbing operations. In order to ensure the personal safety of surveyors, the prior art patent with publication number CN218955635U provides a crack width measuring machine that can measure without climbing.

[0003] In the prior art, the height of the camera is adjusted with the help of a telescopic rod, and the camera and the width gauge host are connected by wires. The wires are relatively long and are directly scattered on one side of the width gauge, which is easy to get tangled, thus affecting the adjustment of the camera height. In addition, during the measurement process, the surveyor needs to keep the position of the width gauge host unchanged for a long time, otherwise it will affect the measurement position of the camera, resulting in deviations in the measurement results. However, maintaining the same posture for a long time will increase the difficulty of the surveyor's work. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model provides a bridge and tunnel crack width measuring machine, which ensures the stability of the camera during the measurement process by setting a spherical pan head to prevent deviations in the measuring position, thereby ensuring the measurement accuracy of the utility model and reducing the work difficulty of the surveyors. The wires are wound up using a wire winding assembly to prevent the wires from becoming tangled due to being scattered.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a bridge and tunnel crack width measuring machine, including a width measuring machine host, the top of the width measuring machine host is connected to an electric wire, the end of the electric wire away from the width measuring machine host is connected to a camera, the bridge and tunnel crack photos taken by the camera are transmitted to the width measuring machine host, and then uploaded to the mobile phone terminal by the width measuring machine host in a wireless manner;

[0006] The camera is fixed to the rear side of the width measuring machine host through a height adjustment component;

[0007] The height adjustment assembly includes a handle fixed to the rear side of the width measuring machine mainframe, a cavity is provided inside the handle, a bamboo-type telescopic rod is installed inside the cavity, the top movable end of the bamboo-type telescopic rod passes through the handle and extends out of the top of the handle, a connecting flange is fixed to the top of the movable end of the bamboo-type telescopic rod, a spherical pan head is fixed to the connecting flange by bolts, a camera mounting shell is installed on the top of the spherical pan head, and the camera is installed inside the camera mounting shell;

[0008] A wire winding assembly for winding the wire is provided on one side of the top of the handle close to the width measuring machine main body.

[0009] Preferably, four protrusions are fixed on the top of the camera mounting shell, and the four protrusions are distributed in a circular array with the center of the circle in the middle of the camera mounting shell as the center.

[0010] Preferably, a camera button is fixed on the inner top of the handle, and the surveyor controls the camera to complete the shooting operation by pressing the camera button.

[0011] Preferably, the wire winding assembly comprises two brackets mounted on the top of the handle, a rotating shaft is movably connected between the two brackets through a bearing, and the wire is wound around the outer end of the rotating shaft to complete winding;

[0012] Coil springs are provided outside both ends of the rotating shaft, one end of the coil spring is fixedly connected to the outer wall of the rotating shaft, and the other end of the coil spring is fixed to the side wall of the bracket.

[0013] Preferably, two parallel limiting circular plates are fixed to the outer end of the rotating shaft, and the electric wire wound on the outer end of the rotating shaft is located between the two limiting circular plates for limiting the position of the electric wire.

[0014] Preferably, a display screen is provided on the front top of the width measuring machine mainframe for displaying the process of the measuring operation.

[0015] Preferably, a power button is provided at the bottom of the front side of the width measuring machine host, and the power button is located at the bottom of the display screen. The width measuring machine host is turned on and off by pressing the power button.

[0016] Preferably, an indicator light is provided on the front side of the width measuring machine host, and the indicator light is located between the display screen and the power button, and is used to display the power level of the width measuring machine host when it is turned on.

[0017] Compared with the prior art, the utility model provides a bridge and tunnel crack width measuring machine, which has the following beneficial effects:

[0018] 1. By installing the camera inside the camera mounting shell, setting a spherical pan head at the bottom of the camera mounting shell, and then installing the spherical pan head on the top of the bamboo-type telescopic rod through the connecting flange, it is ensured that the slight position change of the surveyor during the measurement process will not cause the position change of the camera mounting shell and the camera, so that the surveyor can change the posture in a small range during the long measurement process, reducing the difficulty of measuring the width of cracks in bridges and tunnels.

[0019] 2. Fix two brackets on the top of the handle, rotate and install the rotating shaft between the two brackets, and then roll the wires around the outer end of the rotating shaft to improve the neatness of the wiring. Install a coil spring at both ends of the rotating shaft to apply a reverse rotation force to the rotating shaft when the camera mounting shell is moved up and the wires are pulled, so that the wires can be straightened between the camera mounting shell and the width measuring machine host to avoid tangling of the wires. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a front view of the utility model;

[0022] Figure 3 For the utility model Figure 2 A magnified view of middle;

[0023] Figure 4 It is a structural schematic diagram of the telescopic rod and the handle of the utility model;

[0024] Figure 5 It is a schematic diagram of the telescopic rod of the utility model after being extended.

[0025] In the figure:

[0026] 1 Width measuring machine host, 2 Display screen, 3 Power button, 4 Indicator light, 5 Camera, 6 Photo button;

[0027] 7 height adjustment component, 71 handle, 72 bamboo-type telescopic rod, 73 connecting flange, 74 spherical head, 75 camera mounting shell;

[0028] 8 electrical wires;

[0029] 9: wire winding assembly, 91: bracket, 92: rotating shaft, 93: limiting circular plate, 94: winding spring. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0031] like Figure 1As shown, the utility model provides a bridge tunnel crack width measuring machine, including a width measuring machine host 1, a display screen 2 is provided on the top of the front side of the width measuring machine host 1, which is used to display the process of the measurement operation, a power button 3 is provided on the bottom of the front side of the width measuring machine host 1, and the power button 3 is located at the bottom of the display screen 2. The width measuring machine host 1 is turned on and off by pressing the power button 3. An indicator light 4 is provided on the front side of the width measuring machine host 1, and the indicator light 4 is located between the display screen 2 and the power button 3, and is used to display the power of the width measuring machine host 1 when it is turned on;

[0032] Moreover, a wire 8 is connected to the top of the width measuring machine host 1, and a camera 5 is connected to the end of the wire 8 away from the width measuring machine host 1. The photos of the bridge and tunnel cracks taken by the camera 5 are transmitted to the width measuring machine host 1, and then uploaded to the mobile phone terminal by the width measuring machine host 1 in a wireless manner. Finally, the surveyor operates on the mobile phone terminal and uses the electronic measuring ruler in the mobile phone terminal to measure the width of the bridge and tunnel cracks in the taken photos;

[0033] In order to adapt to the measurement work at different heights, such as Figure 1 As shown, the camera 5 is fixed to the rear side of the width measuring machine host 1 through a height adjustment component 7;

[0034] Specifically, Figure 2-Figure 5 As shown, the height adjustment assembly 7 includes a handle 71 fixed to the rear side of the width measuring machine mainframe 1, a cavity is provided inside the handle 71, a bamboo-type telescopic rod 72 is installed inside the cavity, the top movable end of the bamboo-type telescopic rod 72 passes through the handle 71 and extends out of the top of the handle 71, a connecting flange 73 is fixed to the top of the movable end of the bamboo-type telescopic rod 72, a spherical pan head 74 is fixed to the connecting flange 73 by bolts, a camera mounting shell 75 is installed on the top of the spherical pan head 74, and the camera 5 is installed inside the camera mounting shell 75;

[0035] By stretching the length of the bamboo-jointed telescopic rod 72 upward, the bamboo-jointed telescopic rod 72 can be used to drive the connecting flange 73, the spherical pan / tilt 74 and the camera mounting shell 75 installed on the top thereof to move upward, so as to achieve the purpose of adjusting the height of the camera 5. Four protrusions are fixed on the top of the camera mounting shell 75. The four protrusions are distributed in a circular array with the center of the circle in the middle of the camera mounting shell 75 as the center. When measuring, the protrusions need to be attached to the crack along the length direction of the crack, and the other two protrusions are located on both sides of the crack to ensure that the camera 5 can be perpendicular to the crack to be measured.

[0036] Moreover, a camera button 6 is fixed on the top of the inner side of the handle 71. The surveyor controls the camera 5 to complete the shooting operation by pressing the camera button 6. After the camera 5 is perpendicular to the crack, the ground surveyor only needs to press the camera button 6 installed on the top of the inner side of the handle 71 to complete the shooting of the crack. The whole measurement process does not require the surveyor to climb up to operate, which helps to ensure the personal safety of the surveyor. The spherical pan head 74 can rotate 360 ​​degrees at the bottom of the camera mounting shell 75, which is convenient for the surveyor to move in a small range during the long-term measurement operation, so as to reduce the difficulty of the measurement work.

[0037] Because the height of the camera 5 in the present invention can be adjusted, the length of the wire 8 is relatively long. In order to prevent the wire 8 from getting tangled, as shown in FIG. Figure 1 and 2 As shown, a wire winding assembly 9 for winding the wire 8 is provided on one side of the top of the handle 71 close to the width measuring machine main body 1;

[0038] Specifically, Figure 3-Figure 5 As shown, the wire reel assembly 9 includes two brackets 91 mounted on the top of the handle 71, and a rotating shaft 92 is movably connected between the two brackets 91 through a bearing. The wire 8 is wound around the outer end of the rotating shaft 92 to complete the reeling, so that the wire 8 in the utility model will not be scattered outside;

[0039] The two ends of the rotating shaft 92 are provided with coil springs 94, one end of which is fixedly connected to the outer wall of the rotating shaft 92, and the other end of which is fixed to the side wall of the bracket 91. The camera mounting shell 75 will pull the wire 8 in the process of following the upward movement of the bamboo-jointed telescopic rod 72, so that the wire 8 will drive the rotating shaft 92 and the limiting circular plate 93 to rotate. The rotating shaft 92 will stretch the coil spring 94 in the process of rotation, and the coil spring 94 itself has an elastic force that will apply a force to the rotating shaft 92 to hinder its movement, so that the end of the wire 8 connected to the rotating shaft 92 is stretched in the opposite direction, so that the wire 8 can be tightened between the camera mounting shell 75 and the width measuring machine host 1, so as to prevent the wire 8 from affecting the normal upward movement of the camera mounting shell 75 and the camera 5 due to knotting.

[0040] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A bridge and tunnel crack width measuring machine, comprising a width measuring machine host (1), characterized in that: The top of the width measuring machine host (1) is connected to an electric wire (8), and one end of the electric wire (8) away from the width measuring machine host (1) is connected to a camera (5). The photos of the cracks in the bridge or tunnel taken by the camera (5) are transmitted to the width measuring machine host (1), and then uploaded to the mobile phone terminal by the width measuring machine host (1) in a wireless manner; The camera (5) is fixed to the rear side of the width measuring machine main unit (1) via a height adjustment component (7); The height adjustment assembly (7) comprises a handle (71) fixed to the rear side of the width measuring machine main body (1), the handle (71) has a cavity inside, a bamboo-jointed telescopic rod (72) is installed inside the cavity, the top movable end of the bamboo-jointed telescopic rod (72) passes through the handle (71) and extends out of the top of the handle (71), a connecting flange (73) is fixed to the top of the movable end of the bamboo-jointed telescopic rod (72), a spherical pan head (74) is fixed to the connecting flange (73) by bolts, a camera mounting shell (75) is installed on the top of the spherical pan head (74), and the camera (5) is installed inside the camera mounting shell (75); A wire reeling assembly (9) for reeling in the wire (8) is provided on one side of the top of the handle (71) close to the width measuring machine mainframe (1).

2. A bridge and tunnel crack width measuring machine according to claim 1, characterized in that: Four protrusions are fixed to the top of the camera mounting shell (75), and the four protrusions are distributed in a ring array with the center of the middle of the camera mounting shell (75) as the center.

3. A bridge and tunnel crack width measuring machine according to claim 1, characterized in that: A camera button (6) is fixed to the top of the inner side of the handle (71), and the surveyor controls the camera (5) to complete the shooting operation by pressing the camera button (6).

4. A bridge and tunnel crack width measuring machine according to claim 1, characterized in that: The wire reeling assembly (9) comprises two brackets (91) mounted on the top of the handle (71), a rotating shaft (92) being movably connected between the two brackets (91) via a bearing, and the wire (8) is wound around the outer end of the rotating shaft (92) to complete reeling; Coil springs (94) are provided outside both ends of the rotating shaft (92); one end of the coil spring (94) is fixedly connected to the outer wall of the rotating shaft (92), and the other end of the coil spring (94) is fixed to the side wall of the bracket (91).

5. A bridge and tunnel crack width measuring machine according to claim 4, characterized in that: Two parallel limiting circular plates (93) are fixed to the outer end of the rotating shaft (92); the electric wire (8) wound on the outer end of the rotating shaft (92) is located between the two limiting circular plates (93) for limiting the position of the electric wire (8).

6. A bridge and tunnel crack width measuring machine according to claim 1, characterized in that: A display screen (2) is provided on the top of the front side of the width measuring machine main unit (1) for displaying the process of the measuring operation.

7. A bridge and tunnel crack width measuring machine according to claim 6, characterized in that: A power button (3) is provided at the bottom of the front side of the width measuring machine host (1). The power button (3) is located at the bottom of the display screen (2). The width measuring machine host (1) is turned on and off by pressing the power button (3).

8. A bridge and tunnel crack width measuring machine according to claim 7, characterized in that: An indicator light (4) is provided on the front side of the width measuring machine main unit (1). The indicator light (4) is located between the display screen (2) and the power button (3) and is used to display the power level of the width measuring machine main unit (1) when it is turned on.

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