Tunnel deformation monitoring equipment

Abstract

The utility model relates to the technical field of tunnel engineering, in particular to tunnel deformation monitoring equipment which comprises a tunnel, a laser transmitter and a laser receiving target are fixedly arranged on the left inner end face and the right inner end face of the tunnel respectively, a fixed cylinder is arranged at the upper end of the tunnel, a fixed light-transmitting cylinder is fixedly arranged in the fixed cylinder, and a reflector is fixedly arranged at the upper end of the fixed light-transmitting cylinder. A rotating cavity is formed between the fixed cylinder and the fixed light-transmitting cylinder, the rotating cavity is arranged in a left-right opening mode, two light-transmitting protection plates which are in bilateral symmetry and can rotate in the circumferential direction are arranged in the rotating cavity, the lower end of the water tank is rotationally connected with a driven wheel, the upper ends of the light-transmitting protection plates are fixedly connected with the driven wheel, and a power mechanism is arranged at the lower end of the water tank. The cleaning brushes which are uniformly distributed are fixedly embedded in the fixed cylinder, and the reflector can move without a redundant control mechanism, so that the stability of the position of the reflector can be kept, and the error influence generated after the reflector moves is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel engineering, in particular to a tunnel deformation monitoring device. Background Art

[0002] Tunnel monitoring can provide reliable information for tunnel construction safety and the stability of tunnel support structures. Tunnel detection requires the use of laser transmitters to test the deformation of the tunnel.

[0003] In the prior art, the deformation inside the tunnel is detected by the emission principle of the reflector. However, due to dust adhesion, the service life of the reflector is shortened, and the reflector needs to be cleaned by a cleaning plate. However, the existing reflector needs to be moved to the cleaning plate for cleaning, and an extra control mechanism is required to realize the movement control. This not only makes the internal structure complicated, but also easily causes the position of the reflector to change after the reflector moves, thereby causing detection errors. Utility Model Content

[0004] The purpose of the utility model is to provide a tunnel deformation monitoring device to overcome the above-mentioned defects in the prior art.

[0005] According to a tunnel deformation monitoring device of the utility model, it includes a tunnel, and a laser transmitter and a laser receiving target are respectively fixed on the left and right inner end surfaces of the tunnel, a fixed plate is fixed on the inner end surface of the upper part of the tunnel, the lower end of the fixed plate is fixedly connected to a water tank through a fixed rod, and the lower end surface of the water tank is fixedly connected to a fixed cylinder through two front-to-back fixed frames, a fixed light-transmitting cylinder is fixed in the fixed cylinder, and a reflector is fixed on the upper end part of the fixed light-transmitting cylinder, a rotating cavity is opened between the fixed cylinder and the fixed light-transmitting cylinder, the rotating cavity is opened on the left and right, and two left-right symmetrical and circumferentially rotatable light-transmitting protective plates are arranged in the rotating cavity, the lower end of the water tank is rotatably connected to a driven wheel, and the driven wheel is rotatably arranged on the inner ends of two front-to-back fixed parts, the upper end of the light-transmitting protective plate is fixedly connected to the driven wheel, and the lower end part of the water tank is provided with a moving The power mechanism comprises a power motor fixedly embedded in the water tank, the lower end of the power motor is connected to a driving wheel, the driving wheel is meshed with the driven wheel, the fixed cylinder is fixedly embedded with evenly distributed cleaning brushes, the cleaning brush abuts against the outer end of the light-transmitting protective plate, two circumferentially distributed connecting steel pipes are inserted into the fixed cylinder, a water cavity is opened in the water tank, the connecting steel pipe extends upward and extends to the outer end of the driven wheel through the driven wheel and is connected with the water cavity, a cleaning cylinder is rotatably provided at the lower end portion of the connecting steel pipe, and evenly distributed water holes are separately provided at the lower end portion of the connecting steel pipe, moisture-absorbing cotton is provided at the water hole, the moisture-absorbing cotton abuts against the inner end surface of the cleaning cylinder, a dehumidification cotton is provided in the fixed cylinder and at a position away from the cleaning cylinder end, two groups of circumferentially distributed air holes are opened on the outer periphery of the fixed cylinder, and the dehumidification cotton corresponds to the circumferential position of the air holes.

[0006] The beneficial effects of the utility model are:

[0007] The left and right light-transmitting protective plates are arranged at the left and right opening positions of the rotating cavity, so that the fixed light-transmitting cylinder is protected by the light-transmitting protective plates to prevent the fixed light-transmitting cylinder from contacting with dust in the air and being contaminated. The power mechanism controls the rotation of the driven wheel, so that the two light-transmitting protective plates fixed on the inner circumference of the driven wheel rotate circumferentially. During the rotation of the light-transmitting protective plates, the dust is cleaned by the abutment of the cleaning brush, so that the reflection effect at the reflector can be maintained.

[0008] The light-transmitting protective plate is further cleaned by means of a cleaning cylinder, a connecting steel pipe and dehumidification cotton, thereby improving the cleaning effect at the light-transmitting protective plate. The reflector is arranged in a fixed light-transmitting cylinder and does not need to be moved by an extra control mechanism, thereby maintaining the stability of the reflector position and reducing the error influence caused by the movement of the reflector. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1It is a schematic diagram of the appearance of the utility model;

[0010] Figure 2 This utility model Figure 1 A schematic diagram of the front view structure of

[0011] Figure 3 This utility model Figure 2 Schematic cross-sectional view of AA in the figure;

[0012] Figure 4 This utility model Figure 2 A schematic cross-sectional view of the middle BB;

[0013] Figure 5 This is a schematic diagram of the appearance of the fixed cylinder of the utility model after removing the water tank and the fixed light-transmitting cylinder;

[0014] Figure 6 This utility model Figure 5 Schematic diagram of the appearance from another perspective;

[0015] In the figure:

[0016] 10. Tunnel; 11. Laser transmitter; 12. Laser receiving target; 13. Fixed plate; 14. Water tank; 15. Fixed cylinder; 16. Cleaning brush; 17. Translucent protective plate; 18. Rotating cavity; 19. Fixed translucent cylinder; 20. Reflector; 21. Power mechanism; 22. Driven wheel; 23. Cleaning cylinder; 24. Connecting steel pipe; 25. Dehumidification cotton; 26. Air vent; 27. Water cavity. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] It should be noted that when an element is said to be "fixed to" another element, it can be directly on the other element or there can be an intermediate element. When an element is said to be "connected to" another element, it can be directly connected to the other element or there can be an intermediate element at the same time:

[0019] Embodiment 1:

[0020] Reference Figure 1-Figure 6According to an embodiment of the utility model, a tunnel deformation monitoring device comprises a tunnel 10, wherein a laser emitter 11 and a laser receiving target 12 are respectively fixedly arranged on the left and right inner end surfaces of the tunnel 10, a fixing plate 13 is fixedly arranged on the inner end surface of the upper part of the tunnel 10, and a water tank 14 is fixedly connected to the lower end of the fixing plate 13 through a fixing rod, and a fixing cylinder 15 is fixedly connected to the lower end surface of the water tank 14 through two fixing frames distributed front and back, and a fixed light-transmitting cylinder 19 is fixedly arranged in the fixing cylinder 15, and a reflector 20 is fixedly arranged on the upper end part of the fixed light-transmitting cylinder 19, and a rotating cavity 18 is opened between the fixing cylinder 15 and the fixed light-transmitting cylinder 19, and the rotating cavity 18 is opened on the left and right, and two light-transmitting protective plates 17 which are symmetrical on the left and right and can rotate in the circumferential direction are arranged in the rotating cavity 18, and a driven wheel 22 is rotatably connected to the lower end of the water tank 14, and the driven wheel 22 is rotatably arranged on the inner ends of the two fixing members distributed front and back, and the upper end of the light-transmitting protective plate 17 is fixedly connected to the driven wheel 22, and the lower end of the water tank 14 is fixedly connected to the driven wheel 22. The end portion is provided with a power mechanism 21, which includes a power motor fixedly embedded in the water tank 14, the lower end of the power motor is connected to a driving wheel, the driving wheel is meshed with a driven wheel 22, and a cleaning brush 16 evenly distributed is fixedly embedded on the fixed cylinder 15, the cleaning brush 16 is abutted against the outer end of the light-transmitting protective plate 17, and two circumferentially distributed connecting steel pipes 24 are inserted into the fixed cylinder 15, a water cavity 27 is opened in the water tank 14, and the connecting steel pipe 24 extends upward and toward the outer side of the driven wheel 22. The end extends through the driven wheel 22 and communicates with the water chamber 27. The lower end of the connecting steel pipe 24 is rotatably provided with a cleaning cylinder 23, and the lower end of the connecting steel pipe 24 is separately provided with evenly distributed water holes, and moisture-absorbing cotton is provided at the water holes, and the moisture-absorbing cotton abuts against the inner end surface of the cleaning cylinder 23. Dehumidifying cotton 25 is provided in the fixed cylinder 15 and at the end away from the cleaning cylinder 23. Two groups of circumferentially distributed air holes 26 are opened on the outer periphery of the fixed cylinder 15, and the circumferential positions of the dehumidifying cotton 25 and the air holes 26 correspond to each other.

[0021] The laser emitter 11 emits laser light, which is irradiated upwards to the left and right ends of the fixed tube 15, passes through the light-transmitting protective plate 17 and the fixed light-transmitting tube 19 on the fixed tube 15, and then irradiates the reflector 20 located at the upper end of the fixed light-transmitting tube 19. The reflector 20 reflects the laser light downwards through the fixed light-transmitting tube 19 and the light-transmitting protective plate 17, and then irradiates the laser receiving target 12. The laser irradiates the light in the photosensitive area of ​​the laser receiving target 12 to generate a light spot. The laser receiving target 12 detects the deformation of the tunnel 10 according to the position change of the light spot, and can accurately monitor the deformation.

[0022] After working for a period of time, a certain amount of dust is accumulated on the outer periphery of the light-transmitting protective plate 17. The power mechanism 21 works regularly, so that the power motor in the power mechanism 21 works to drive the driving wheel connected to the lower power end to rotate. Under the fixed connection between the driving wheel and the light-transmitting protective plate 17, the left and right light-transmitting protective plates 17 are driven to rotate circumferentially. The two light-transmitting protective plates 17 rotate under contact with the left and right cleaning brushes 16 respectively. The cleaning brushes 16 contact the outer periphery of the light-transmitting protective plate 17 to clean the dust accumulated on the light-transmitting protective plate 17.

[0023] During the rotation of the light-transmitting protective plate 17, the outer circumference of the light-transmitting protective plate 17 abuts against the cleaning cylinder 23, and the light-transmitting protective plate 17 drives the cleaning cylinder 23 to rotate. The cleaning cylinder 23 rotates circumferentially with the connecting steel pipe 24 as the rotation axis, so that the cleaning cylinder 23 and the moisture-absorbing cotton at the water through hole of the connecting steel pipe 24 are in circumferential rotational contact, and the water in the connecting steel pipe 24 is transmitted to the cleaning cylinder 23 through the contact. Water is stored in the water cavity 27, and the flow is achieved through the connection of the connecting steel pipe 24, so that the outer circumferential surface of the light-transmitting protective plate 17 is cleaned through the cleaning cylinder 23. As the circumferential rotation of the light-transmitting protective plate 17 proceeds, the light-transmitting protective plate 17 abuts against the dehumidifying cotton 25, and the dehumidifying cotton 25 absorbs the water on the outer circumferential surface of the light-transmitting protective plate 17, so as to keep the outer circumferential surface of the light-transmitting protective plate 17 dry. The dehumidifying cotton 25 contacts the air through the air holes 26 to dehumidify, so as to keep the dehumidifying cotton 25 dry during the next water absorption process.

[0024] The number of rotations of the driving wheel is controlled by the power motor, so that the driven wheel 22 meshing with the driving wheel rotates half a circle or a full circle, so that the light-transmitting protective plate 17 rotates circumferentially and resets.

[0025] It is clear to those skilled in the art that various modifications to the above embodiments can be made without departing from the overall spirit and concept of the present invention. All of them fall within the protection scope of the present invention. The protection scheme of the present invention shall be subject to the claims attached to the present invention.

Claims

1. A tunnel deformation monitoring device, comprising a tunnel (10), wherein a laser emitter (11) and a laser receiving target (12) are fixedly arranged on the left and right inner end surfaces of the tunnel (10), a fixing plate (13) is fixedly arranged on the inner end surface of the upper part of the tunnel (10), a water tank (14) is fixedly connected to the lower end of the fixing plate (13) via a fixing rod, and a fixing cylinder (15) is fixedly connected to the lower end surface of the water tank (14) via two fixing frames distributed front and rear, wherein: A fixed light-transmitting cylinder (19) is fixedly arranged in the fixed cylinder (15), and a reflector (20) is fixedly arranged at the upper end of the fixed light-transmitting cylinder (19). A rotating chamber (18) is provided between the fixed cylinder (15) and the fixed light-transmitting cylinder (19), and the rotating chamber (18) is open on the left and right. Two light-transmitting protective plates (17) which are symmetrical on the left and right and can rotate in the circumferential direction are provided in the rotating chamber (18). A driven wheel (22) is rotatably connected to the lower end of the water tank (14), and the upper end of the light-transmitting protective plate (17) is fixedly connected to the driven wheel (22). A power mechanism (21) is provided at the lower end of the water tank (14), and cleaning brushes (16) which are evenly distributed are fixedly embedded on the fixed cylinder (15).

2. A tunnel deformation monitoring device according to claim 1, characterized in that: Two circumferentially distributed connecting steel pipes (24) are inserted into the fixed cylinder (15), a water cavity (27) is opened in the water tank (14), the connecting steel pipe (24) extends upward and extends to the outer end of the driven wheel (22) through the driven wheel (22) and communicates with the water cavity (27), the lower end portion of the connecting steel pipe (24) is rotatably provided with a cleaning cylinder (23), and the lower end portion of the connecting steel pipe (24) is separately provided with evenly distributed water holes, and moisture-absorbing cotton is provided at the water holes, and the moisture-absorbing cotton abuts against the inner end surface of the cleaning cylinder (23).

3. A tunnel deformation monitoring device according to claim 2, characterized in that: A dehumidifying cotton (25) is arranged inside the fixed cylinder (15) and at an end away from the cleaning cylinder (23). Two groups of circumferentially distributed air holes (26) are arranged on the outer circumference of the fixed cylinder (15). The circumferential positions of the dehumidifying cotton (25) and the air holes (26) correspond to each other.

4. The tunnel deformation monitoring device according to claim 3, characterized in that: The power mechanism (21) comprises a power motor fixedly embedded in the water tank (14), the lower end of the power motor is connected to a driving wheel, and the driving wheel is meshed with the driven wheel (22).

5. The tunnel deformation monitoring device according to claim 4, characterized in that: The cleaning brush (16) abuts against the outer end of the light-transmitting protective plate (17).

6. The tunnel deformation monitoring device according to claim 5, characterized in that: The driven wheel (22) is rotatably arranged at the inner ends of two fixing members distributed front and back.

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