A detection device for tunnel secondary lining quality

Abstract

The present invention discloses a detection device for the quality of the secondary lining of a tunnel, comprising a first motion mechanism, a second motion mechanism, a fastening device, and a detection radar, wherein the second motion mechanism is arranged above the first motion mechanism, the fastening device is arranged above the second motion mechanism, a second electric telescopic rod is arranged between the second motion mechanism and the fastening device, one end of the second electric telescopic rod is fixed to the top of the second motion mechanism, and the other end is connected to the fastening device, the detection radar is installed in the fastening device, a controller is arranged on one side of the bottom of the first motion mechanism, and a battery is arranged on the other side. The present invention can be adsorbed on the inner wall of the tunnel, and the detection radar is driven to detect the tunnel through the movement of the device, so as to ensure the stability of the stability detection radar when working, improve the work efficiency, and do not need to work with the detection radar by hand, thereby reducing the work intensity of the detection personnel and reducing the labor cost.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel detection equipment, and in particular relates to a detection device for the quality of a tunnel secondary lining. Background Art

[0002] The secondary lining is a cast-in-place concrete or reinforced concrete lining constructed on the inner side of the primary support during tunnel construction. Together with the primary support, it forms a composite lining. The secondary lining plays a role in the tunnel in terms of aesthetics, supporting the surrounding rock, and stress reserve of the support structure. The construction quality of the secondary lining is one of the key factors affecting the overall construction quality and aesthetics of the tunnel. During the construction of the secondary lining, due to various reasons such as construction technology, the secondary lining often has voids and the primary lining and the secondary lining are decoupled, which has a certain impact on the tunnel support system and subsequent operations. Therefore, after the construction of the secondary lining, it is necessary to promptly detect the construction quality of the tunnel secondary lining and deal with the defects in the tunnel secondary lining to ensure the safe operation of the tunnel.

[0003] At present, the detection radar is mainly used to detect the quality of the tunnel secondary lining. Its basic principle is: the detection radar antenna is closely attached to the wall of the secondary lining, and the radar antenna transmits and receives electromagnetic wave signals and transmits them to the host. By analyzing the electromagnetic wave signals, it is analyzed whether there are defects in the tunnel secondary lining. When detecting the quality of the tunnel secondary lining, the inspector stands in the bucket of the loader holding the detection radar, and holds the detection radar antenna with his hand to make it close to the surface of the tunnel secondary lining. The movement of the loader drives the detection radar to move close to the lining surface, thereby realizing continuous data collection. Due to the high position of the arch and spandrel of the tunnel, the loader needs to lift the inspector to a certain height through the bucket, so that the inspector can contact the tunnel with the detection radar. The inspector needs to work with his back facing up, which is extremely easy to cause fatigue and has high labor intensity. Sometimes two inspectors are required to work alternately, which increases labor costs. Due to the high instability of manual operation, the collected data generally has a large error rate, thereby reducing work efficiency. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a detection device for the quality of the secondary lining of a tunnel. The device can be adsorbed on the inner wall of the tunnel, and the movement of the device drives the detection radar to detect the tunnel, thereby ensuring the stability of the stability detection radar when working, improving the work efficiency, eliminating the need for personnel to hold the detection radar, reducing the work intensity of the detection personnel, and reducing labor costs.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A detection device for the quality of a tunnel secondary lining comprises a first motion mechanism, a second motion mechanism, a fastening device, and a detection radar, wherein the second motion mechanism is arranged above the first motion mechanism, the fastening device is arranged above the second motion mechanism, a second electric telescopic rod is arranged between the second motion mechanism and the fastening device, one end of the second electric telescopic rod is fixed to the top of the second motion mechanism, and the other end is connected to the fastening device, the detection radar is installed in the fastening device, and the fastening device is used to fix the detection radar to ensure the stable detection work, a controller is provided on one side of the bottom of the first motion mechanism, and a battery is provided on the other side, the battery and the controller are both fixed on the first motion mechanism, the battery and the controller are electrically connected to the first motion mechanism, the second motion mechanism, and the second electric telescopic rod respectively, the battery is used to provide power to the first motion mechanism, the second motion mechanism, the second electric telescopic rod, and the controller, and the controller is used to control the work of the first motion mechanism, the second motion mechanism, and the second electric telescopic rod.

[0007] Preferably, the first motion mechanism includes a first support plate and a movable plate, the movable plate is hingedly arranged on both sides of the first support plate, the two movable plates are connected by a connecting rod, both ends of the connecting rod are respectively hinged obliquely on the movable plates on both sides of the first support plate, first connecting blocks are fixed at both ends of the movable plate, a flat plate is fixed on one side of the first connecting block, a first micro vacuum pump is fixed on the flat plate, an output end of the first micro vacuum pump passes through the flat plate and is connected to the first suction cup, a first electric telescopic rod is provided on one side of the controller, the first electric telescopic rod is fixedly mounted on the bottom of the first support plate, a second connecting block is fixed on the end of the first electric telescopic rod, the second connecting block is fixed on the first support plate, the first electric telescopic rod and the first micro vacuum pump are electrically connected to the controller and the battery respectively.

[0008] Preferably, the second motion mechanism includes a second support plate, a second micro-vacuum pump, and a second suction cup. The second support plate is in a "cross" shape and is located above the first support plate. A drive motor is fixedly provided on the second support plate, and the output shaft of the drive motor is fixedly connected to the first support plate. The second micro-vacuum pump is fixedly provided at the four ends of the second support plate, and the second suction cup is connected to the output end of the second micro-vacuum pump. The second micro-vacuum pump and the drive motor are electrically connected to the controller and the battery, respectively.

[0009] Preferably, the fastening device comprises a third support plate, a screw, a placement box, and a clamping plate, the third support plate is fixedly arranged at the end portion of the second electric telescopic rod, and bearing seats are fixedly arranged on both sides of the top of the third support plate, the screw is installed in two bearing seats, and one end of the screw is fixedly provided with a shaking handle, which is convenient for holding the screw by shaking the handle, thereby facilitating the rotation of the screw and improving the work efficiency. The screw is provided with a slider, and the slider is provided with a threaded hole matching the screw, the placement box is fixedly arranged on the two bearing seats, the clamping plate is arranged in the placement box, and guide grooves are provided on two side walls of the placement box, and connecting rods are fixedly provided at both ends of the slider, and the connecting rod is "U"-shaped, and the end of the connecting rod passes through the guide groove and is fixedly connected to the clamping plate, and the screw is rotated by shaking the handle, and the slider on the screw drives the connecting rod and the clamping plate to move toward one side of the detection radar, thereby realizing the fixation of the detection radar and ensuring the stability of the detection radar during operation.

[0010] Preferably, a mounting plate is fixedly provided on the top of the flat plate, the output end of the first micro-vacuum pump passes through the mounting plate, a camera is fixedly provided on the top of the mounting plate, the camera is electrically connected to the battery, and a wireless transceiver module is also provided on the device, the wireless transceiver module is installed on the first support plate and is electrically connected to the battery, the picture taken by the camera is transmitted to the display on the ground through the wireless transceiver module, so as to facilitate the detection personnel to observe the working environment and movement route of the device in real time.

[0011] Preferably, the first suction cup and the second suction cup are both in a frustum shape, thereby increasing the contact area between the first suction cup and the second suction cup and the surface of the second lining of the tunnel, and improving the stability of the device during operation.

[0012] Preferably, the side of the clamping plate in contact with the detection radar is provided with anti-slip grooves, and the inner wall of the placement box is also provided with anti-slip grooves. The anti-slip grooves prevent the detection radar from sliding downward when working, thereby improving the stability of the detection radar when working.

[0013] The beneficial effects of the present invention are:

[0014] 1) The device can be adsorbed on the inner wall of the tunnel, and the movement of the device can drive the detection radar to detect the tunnel, ensuring the stability of the stability detection radar during operation, improving the work efficiency, eliminating the need for personnel to hold the detection radar, reducing the work intensity of the detection personnel, and reducing labor costs.

[0015] 2) A mounting plate is fixedly provided on the top of the flat plate, and the output end of the first micro vacuum pump passes through the mounting plate. A camera is fixedly provided on the top of the mounting plate, and the camera is electrically connected to the battery. The device is also provided with a wireless transceiver module, and the wireless transceiver module is installed on the first support plate and is electrically connected to the battery. The picture taken by the camera is transmitted to the display on the ground through the wireless transceiver module, so that the detection personnel can observe the working environment and movement route of the device in real time.

[0016] 3) The first suction cup and the second suction cup are both in a truncated cone shape, thereby increasing the contact area between the first suction cup and the second suction cup and the surface of the second lining of the tunnel, and improving the stability of the device during operation.

[0017] 4) The side of the clamping plate in contact with the detection radar is provided with anti-slip grooves, and the inner wall of the placement box is also provided with anti-slip grooves. The anti-slip grooves prevent the detection radar from sliding downward when working, thereby improving the stability of the detection radar when working. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Attached Figure 1 The present invention is a schematic diagram of the structure of a detection device for the quality of a tunnel secondary lining.

[0019] Attached Figure 2 It is a schematic structural diagram of the other side of a detection device for the quality of a tunnel secondary lining according to the present invention.

[0020] Attached Figure 3 It is a schematic diagram of the structure of a fastening device in a detection device for the quality of a tunnel secondary lining according to the present invention.

[0021] In the figure: 1. first motion mechanism; 101. first support plate; 102. movable plate; 103. first connecting block; 104. first micro vacuum pump; 105. first suction cup; 106. first electric telescopic rod; 107. connecting rod; 108. second connecting block; 109. flat plate; 2. second motion mechanism; 201. second support plate; 202. second micro vacuum pump; 203. second suction cup; 204. driving motor; 3. second electric telescopic rod; 4. fastening device; 401. third support plate; 402. bearing seat; 403. lead screw; 404. slider; 405. connecting rod; 406. shaking handle; 407. placing box; 408. clamping plate; 409. guide groove; 5. detection radar; 6. controller; 7. battery; 8. mounting plate; 9. camera. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-3, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] A detection device for the quality of a tunnel secondary lining comprises a first motion mechanism 1, a second motion mechanism 2, a fastening device 4, and a detection radar 5. The second motion mechanism 2 is arranged above the first motion mechanism 1, the fastening device 4 is arranged above the second motion mechanism 2, a second electric telescopic rod 3 is arranged between the second motion mechanism 2 and the fastening device 4, one end of the second electric telescopic rod 3 is fixed to the top of the second motion mechanism 2, and the other end is connected to the fastening device 4. The detection radar 5 is installed in the fastening device 4, and the fastening device 4 is used to fix the detection radar 5, so as to ensure the stable detection work. A controller 6 is provided on one side of the bottom of a motion mechanism 1, and a battery 7 is provided on the other side. The battery 7 and the controller 6 are both fixed on the first motion mechanism 1. The battery 7 and the controller 6 are electrically connected to the first motion mechanism 1, the second motion mechanism 2, and the second electric telescopic rod 3 respectively. The battery 7 is used to provide power to the first motion mechanism 1, the second motion mechanism 2, the second electric telescopic rod 3, and the controller 6. The controller 6 is used to control the operation of the first motion mechanism 1, the second motion mechanism 2, and the second electric telescopic rod 3. The controller 6 adopts a mature commercially available product, such as a BZ2046-T microcontroller.

[0025] The first motion mechanism 1 includes a first support plate 101 and a movable plate 102, wherein the movable plate 102 is hingedly arranged on both sides of the first support plate 101, and the two movable plates 102 are connected by a connecting rod 107, and the two ends of the connecting rod 107 are respectively hingedly connected to the movable plates 102 on both sides of the first support plate 101, and first connecting blocks 103 are fixed at both ends of the movable plate 102, and a flat plate 109 is fixed on one side of the first connecting block 103, and a first micro vacuum pump 104 is fixed on the flat plate 109, and the output end of the first micro vacuum pump 104 passes through the flat plate 109 and is connected to the first suction cup 105, and a mounting plate 8 is fixed on the top of the flat plate 109, and the output end of the first micro vacuum pump 104 passes through the mounting plate 8, and a camera 9 is fixed on the top of the mounting plate 8 The camera 9 is electrically connected to the battery 7. The device is also provided with a wireless transceiver module, which is installed on the first support plate 101 and electrically connected to the battery 7. The picture taken by the camera 9 is transmitted to the display on the ground through the wireless transceiver module, so that the detection personnel can observe the working environment and movement route of the device in real time. A first electric telescopic rod 106 is provided on one side of the controller 6. The first electric telescopic rod 106 is fixedly installed at the bottom of the first support plate 101. A second connecting block 108 is fixed to the end of the first electric telescopic rod 106. The second connecting block 108 is fixed on the movable plate 102 on one side of the first support plate 101. The first electric telescopic rod 106 and the first micro vacuum pump 104 are electrically connected to the controller 6 and the battery 7 respectively.

[0026] The second motion mechanism 2 includes a second support plate 201, a second micro vacuum pump 202, and a second suction cup 203. The second support plate 201 is in a "cross" shape and is located above the first support plate 101. A drive motor 204 is fixedly provided on the second support plate 201. The output shaft of the drive motor 204 is fixedly connected to the first support plate 101. The second micro vacuum pump 202 is fixedly arranged at the four ends of the second support plate 201. The second suction cup 203 is connected to the output end of the second micro vacuum pump 202. The first suction cup 105 and the second suction cup 203 are both in a truncated cone shape, thereby increasing the contact area between the first suction cup 105 and the second suction cup 203 and the surface of the second lining of the tunnel, thereby improving the stability of the device during operation. The second micro vacuum pump 202 and the drive motor 204 are electrically connected to the controller 6 and the battery 7, respectively.

[0027] The fastening device 4 includes a third support plate 401, a lead screw 403, a placement box 407, and a clamping plate 408. The third support plate 401 is fixedly arranged at the end of the second electric telescopic rod 3. Bearing seats 402 are fixedly arranged on both sides of the top of the third support plate 401. The lead screw 403 is installed in two bearing seats 402. A rocking handle 406 is fixedly arranged at one end of the lead screw 403. The rocking handle 406 facilitates the grip of the lead screw 403, thereby facilitating the rotation of the lead screw 403 and improving the work efficiency. A slider 404 is arranged on the lead screw 403, and a threaded hole matching the lead screw 403 is arranged on the slider 404. The placement box 407 is fixedly arranged on the two bearing seats 402. The clamping plate 408 is arranged on the placement box 407. In the box 407, guide grooves 409 are provided on the two side walls of the placement box 407, and connecting rods 405 are fixedly provided at both ends of the slider 404. The connecting rod 405 is "U"-shaped, and the end of the connecting rod 405 passes through the guide groove 409 and is fixedly connected to the clamping plate 408. The screw 403 is rotated by shaking the handle 406, and the slider 404 on the screw 403 drives the connecting rod 405 and the clamping plate 408 to move toward the side of the detection radar 5, thereby fixing the detection radar 5 and ensuring the stability of the detection radar 5 when working. The side of the clamping plate 408 that contacts the detection radar 5 is provided with anti-slip grooves, and the inner wall of the placement box 407 is also provided with anti-slip grooves. The anti-slip grooves prevent the detection radar from sliding downward when working, thereby improving the stability of the detection radar when working.

[0028] A detection device for the quality of a tunnel secondary lining, the working process of which is as follows: a second motion mechanism operates through a second micro vacuum pump to cause a second suction cup to be adsorbed onto a side wall, a second electric telescopic rod is extended to drive a clamping device and a detection radar to move, so that the detection radar contacts the side wall of the secondary lining, a first electric telescopic rod is extended to drive a movable plate on one side of a first support plate to move forward, since the two movable plates are hinged through a connecting rod, one end of the two movable plates moves in opposite directions, the first micro vacuum pump starts to work, the first suction cup is adsorbed onto the side wall, the second micro vacuum pump starts to work, the second suction cup is separated from the side wall, the first electric telescopic rod contracts, since the movable end of the first electric telescopic rod is fixed, the first electric telescopic rod drives the first support plate and the second motion mechanism to move forward, the driving motor rotates to drive the first support plate to rotate and adjust the angle, and the two movable plates adjust the angle accordingly through the connecting rod, and this process is repeated, thereby realizing linear detection of the tunnel secondary lining, and the picture captured by the camera on the mounting plate is transmitted to a display on the ground through a wireless transceiver module, so that it is convenient for detection personnel to observe the working environment and movement route of the device in real time.

[0029] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A device for detecting the quality of a tunnel secondary lining, characterized in that: It includes a first motion mechanism, a second motion mechanism, a fastening device, and a detection radar, wherein the second motion mechanism is arranged above the first motion mechanism, the fastening device is arranged above the second motion mechanism, a second electric telescopic rod is arranged between the second motion mechanism and the fastening device, one end of the second electric telescopic rod is fixed to the top of the second motion mechanism, and the other end is connected to the fastening device, the detection radar is installed in the fastening device, a controller is arranged on one side of the bottom of the first motion mechanism, and a battery is arranged on the other side, the battery and the controller are both fixed on the first motion mechanism, and the battery and the controller are electrically connected to the first motion mechanism, the second motion mechanism, and the second electric telescopic rod respectively; The first motion mechanism comprises a first support plate and a movable plate, the movable plate is hingedly arranged on both sides of the first support plate, the two movable plates are connected by a connecting rod, the two ends of the connecting rod are respectively hingedly connected to the movable plates on both sides of the first support plate, first connecting blocks are fixed at both ends of the movable plate, a flat plate is fixed on one side of the first connecting block, a first micro vacuum pump is fixed on the flat plate, the output end of the first micro vacuum pump passes through the flat plate and is connected to the first suction cup, a first electric telescopic rod is provided on one side of the controller, the first electric telescopic rod is fixedly mounted on the bottom of the first support plate, a second connecting block is fixed at the end of the first electric telescopic rod, the second connecting block is fixed on the first support plate, the first electric telescopic rod and the first micro vacuum pump are electrically connected to the controller and the battery respectively; The second motion mechanism includes a second support plate, a second micro vacuum pump, and a second suction cup. The second support plate is in a "cross" shape, and the second support plate is located above the first support plate. A drive motor is fixedly provided on the second support plate, and the output shaft of the drive motor is fixedly connected to the first support plate. The second micro vacuum pump is fixedly provided at four ends of the second support plate, and the second suction cup is connected to the output end of the second micro vacuum pump. The second micro vacuum pump and the drive motor are electrically connected to the controller and the battery respectively. The fastening device includes a third support plate, a lead screw, a placement box, and a clamping plate. The third support plate is fixedly arranged at the end of the second electric telescopic rod. Bearing seats are fixedly arranged on both sides of the top of the third support plate. The lead screw is installed in two bearing seats. A rocking handle is fixedly arranged at one end of the lead screw. A slider is arranged on the lead screw. A threaded hole matching the lead screw is arranged on the slider. The placement box is fixedly arranged on the two bearing seats. The clamping plate is arranged in the placement box. Guide grooves are arranged on the two side walls of the placement box. Connecting rods are fixedly arranged at both ends of the slider. The ends of the connecting rods pass through the guide grooves and are fixedly connected to the clamping plates. The first suction cup and the second suction cup are both in the shape of a truncated cone; the side of the clamping plate in contact with the detection radar is provided with anti-slip grooves, and the inner wall of the placement box is also provided with anti-slip grooves.

2. A device for detecting the quality of a tunnel secondary lining according to claim 1, characterized in that: The connecting rod is in a "U" shape.

3. The device for detecting the quality of the secondary lining of a tunnel according to claim 1, characterized in that: A mounting plate is fixedly provided on the top of the flat plate, and the output end of the first micro vacuum pump passes through the mounting plate. A camera is fixedly provided on the top of the mounting plate, and the camera is electrically connected to the battery. The device is also provided with a wireless transceiver module, and the wireless transceiver module is installed on the first support plate and is electrically connected to the battery.

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