Tunnel pre-buried groove positioning detection device and method

Abstract

The present invention belongs to the technical field of tunnel pre-embedded grooves, and specifically relates to a tunnel pre-embedded groove positioning detection device and method, comprising a tunnel vault, an embedded groove body is installed on the inner wall of the tunnel vault, an embedded anchor rod is connected to the upper part of the embedded groove body, a middle plate is arranged below the tunnel vault, a push frame is fixedly connected to the front surface of the middle plate, a support leg is fixedly connected to the lower part of the middle plate, a bottom plate is arranged at the bottom of the support leg, and a first electric push rod is fixedly installed in the middle of the bottom plate. The device can not only locate and detect the anchor rod of the embedded groove, but also switch the illumination mode of the light spot and the light so that the device can switch the detection mode when detecting the embedded groove and the groove anchor rod, and the device can perform equidistant detection on multiple embedded grooves, and the device can also adjust itself adaptively according to different tunnels and embedded grooves.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel pre-buried grooves, and in particular to a tunnel pre-buried groove positioning detection device and method. Background Art

[0002] Tunnel pre-buried grooves refer to grooves pre-buried in the foundation of the tunnel for guiding cables, pipelines and other lines. The grooves are composed of prefabricated concrete components, installed on the foundation in the tunnel, and used for line layout in the tunnel to avoid the lines crossing the ground and occupying the ground space, while improving the reliability and safety of the lines. After the grooves are arranged, positioning detection equipment is required for detection. The existing tunnel pre-buried groove positioning detection equipment still has some defects when used;

[0003] For example, a Chinese invention patent (publication number CN109751944A) discloses a detection device and a detection method for a pre-embedded chute for a tunnel segment. An arc detection plate consistent with the design arc of the pre-embedded chute is used. During detection, the pre-embedded chute is directly placed on the arc detection plate. The positions of the anchor bolts and the positioning bolt holes and other connecting parts on the pre-embedded chute can be directly measured by the arc ruler set on the arc detection plate. The distance between the notch of the pre-embedded chute and the arc surface can be directly measured by the feeler gauge to determine whether the notch is deformed, thereby achieving the purpose of direct measurement, convenient operation, and reducing costs.

[0004] The above-mentioned device uses an arc-shaped detection plate with the same arc as the design arc of the embedded slide groove for detection. Although the detection function can be realized, the device can only detect embedded grooves of a single shape, and it is difficult to adapt to the use of embedded grooves and tunnels of different shapes. It is not possible to perform classified detection of the installation points of the embedded anchor rods of the embedded grooves and the embedded grooves. The scope of application is narrow, and the existing embedded groove detection equipment does not have an equidistant detection function when in use, and cannot perform fixed-distance detection on multiple embedded grooves. Summary of the invention

[0005] In view of the problems existing in the existing embedded groove positioning detection equipment, the present invention is proposed.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a tunnel pre-embedded channel positioning detection device comprises a tunnel vault, an embedded channel body is installed on the inner wall of the tunnel vault, an embedded anchor rod is connected to the top of the embedded channel body, a middle plate is arranged below the tunnel vault, a push frame is fixedly connected to the front surface of the middle plate, a support leg is fixedly connected to the bottom of the middle plate, a bottom plate is arranged at the bottom of the support leg, a first electric push rod is fixedly installed in the middle of the bottom plate, wheels are rotatably connected to the left and right sides of the bottom plate, centering components are installed on both sides of the middle plate, a push frame is fixedly arranged at the front end of the middle plate, a turntable is rotatably installed inside the middle plate, a calibration component is arranged on the outside of the turntable, lasers are installed at equal angles inside the turntable, the lasers are connected to adjacent lasers through a second spring, the leftmost laser is fixedly connected to the turntable, the lasers at other positions are slidably connected to the turntable, and a traction steel rope is bolted to the rightmost laser.

[0007] As a preferred solution of the present invention, the left and right sides of the first electric push rod are fixedly connected with limit sliders, the connection between the limit slider and the support leg is a sliding connection, and the middle plate forms a lifting structure with the bottom plate through the support leg, the first electric push rod and the limit slider.

[0008] As a preferred solution of the present invention, the centering assembly includes side connecting rods fixedly installed on the left and right sides of the middle plate, the surface of the side connecting rods is fixedly connected to a first spring, the front end of the first spring is fixedly connected to a sliding sleeve, and a ball is rotatably connected inside the sliding sleeve.

[0009] As a preferred solution of the present invention, the balls are evenly distributed on the surface of the sliding sleeve, and the inner wall of the sliding sleeve and the outer surface of the side connecting rod are in contact with each other.

[0010] As a preferred solution of the present invention, the calibration component includes a second electric push rod fixedly installed on the rear side of the middle plate, a first semicircular ring is fixedly connected to the right side of the second electric push rod, the connection between the first semicircular ring and the middle plate is a sliding connection, a fixed plate is welded to the right side of the first semicircular ring, a second semicircular ring is welded to the front end of the fixed plate, a diffusion plate is fixedly installed inside the lower half of the second semicircular ring, a gap is opened in the middle position of the upper half of the second semicircular ring, and a mirror is provided on the front surface of the first semicircular ring.

[0011] As a preferred solution of the present invention, the mirror is a curved structure, the position of the mirror corresponds to the position of the laser, the first semicircular ring, the fixed plate, the second semicircular ring and the diffuser are a whole, and the central axis of the mirror, the first semicircular ring, the second semicircular ring and the turntable are collinear.

[0012] As a preferred solution of the present invention, the traction steel rope is connected to the rotating shaft through a guide wheel, the rotating shaft and the turntable are rotatably connected, the front end of the turntable is fixedly connected with a fixed cylinder located on the outside of the rotating shaft, a damping pad is tightly provided on the outside of the fixed cylinder, and the damping pad and the middle plate are fixedly connected.

[0013] As a preferred solution of the present invention, a rotating plate is rotatably installed on the outer side of the front end of the rotating shaft, a middle rod is fixedly arranged in the middle of the front end of the rotating shaft, the rotating plate is connected to the middle rod through a vortex spring, and a connecting plate is fixedly connected to the outer side of the rotating shaft, the outer surface of the connecting plate is in contact with the inner wall of the fixed cylinder, and a diffusion adjustment component is installed between the connecting plate and the fixed cylinder.

[0014] As a preferred solution of the present invention, the diffusion adjustment component includes a docking groove opened on the surface of the fixed cylinder, a docking rod is fitted inside the docking groove, a sliding rod is fixedly connected to the lower part of the front end of the docking rod, a third spring is sleeved on the outer side of the sliding rod, and the head and tail ends of the third spring are respectively connected to the sliding rod and the connecting plate, a pull rope is fixedly connected to the front end of the sliding rod, and the pull rope is connected to the rotating plate through the guidance of the guide frame, the guide frame and the connecting plate are fixedly connected, and the sliding rod and the connecting plate are limited sliding connection.

[0015] A method for using a tunnel pre-buried groove positioning detection device comprises the following steps:

[0016] S1: The device is supported as a whole by supporting legs, bottom plate and wheels, and the upper surface of the middle plate is adjusted to be flush with the bottom end of the arc surface of the tunnel vault, so that the central axis of the turntable in the middle plate is located at the center of the arc surface of the tunnel vault, and the axial centering work is completed at this time;

[0017] S2: After the axial centering is completed, the longitudinal centering is performed. The left and right sides of the middle plate are supported by the centering assembly to tighten the left and right sides of the inner wall of the tunnel, so that the middle plate and the turntable are centered, and the longitudinal centering work is completed. At this time, the embedded groove is positioned and detected. The centering assembly and the first electric push rod are used to enable the device to adapt to the use of tunnels with different vault sizes and heights;

[0018] S3: Use lasers installed at equal angles to illuminate light spots on the top of the tunnel vault to determine whether the installation position of the embedded anchor rods on the embedded channel body is consistent with the position of the illuminated light spots, so as to perform positioning detection on the installation position of the embedded anchor rods. According to the number of embedded anchors installed, pull the traction rope on the rightmost laser to make the lasers at all locations except the leftmost one to be synchronously extended and retracted. During the synchronous extension and retraction of the lasers at all locations, the concentration of the laser irradiation light spots changes to adapt to the use of different numbers of embedded anchor rods.

[0019] S4: After the embedded groove body is installed, the rear half of the calibration component can reflect the laser to the front end of the device during the movement, thereby realizing the equidistant detection function. By comparing the installation distances of the embedded groove bodies on the front and rear sides, the device can perform spacing positioning and detection on multiple embedded groove bodies. The front half of the calibration component can disperse the laser light during the backward movement, and enable the device to switch the laser light spot and light irradiation state, so as to classify and detect the embedded anchor rods and embedded groove bodies respectively.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. By setting the first electric push rod and the bottom plate, the device can adjust the height of the entire center plate through the first electric push rod, so that the center of the turntable coincides with the center of the arc part of the tunnel vault, so as to realize the axial centering of the device. By utilizing the centering components on the left and right sides of the center plate, the center plate and the turntable of the device are always located in the center of the tunnel during the forward and backward movement, so as to adapt to the use of tunnels of different widths and sizes, thereby improving the scope of application of the device and solving the defect that the existing tunnel pre-buried groove detection device cannot adapt to the use of different tunnels.

[0022] 2. Through the traction steel rope and the second spring on the device, the second spring at each position can be stretched synchronously in the process of pulling the traction steel rope, so that the lasers at each position can expand synchronously at equal angles, so that the device can adapt to different pre-buried groove anchor rods for equidistant detection, which solves the defect that the existing detection device cannot detect the anchor rods of the pre-buried groove. The device has the advantage of a wider range of applications.

[0023] 3. By setting up a diffusion adjustment component, the traction steel rope can adjust the diffusion of the laser photoelectric during the pulling process. At the same time, in conjunction with the vortex spring and the rotatably installed rotating plate, the pull rope can be pulled first during the rotation of the rotating plate to make the docking rod detach from the inside of the docking groove, and then the vortex spring can be used to rotate the rotating shaft until the docking rod moves to the next docking groove and is fixed again. The device can not only adjust the light spot diffusion of the anchor rod installation point, but also can conveniently fix the adjusted light spot diffusion. The device can also use the damping pad in conjunction with the rotatably installed turntable, so that when the device detects the anchor rod installation point, it can adjust the position of the first light spot on the left, so as to adapt to different pre-buried grooves for detection, thereby improving the convenience of use.

[0024] 4. By setting the first semicircular ring and the second semicircular ring, when the first semicircular ring is used in conjunction with the laser, the mirror surface of the first semicircular ring is used to reflect the light spot irradiated by the laser, so as to illuminate the position at the front end of the inner wall of the tunnel, so that the device can detect the spacing between two adjacent pre-buried grooves, and by using the inner wall of the arc surface, by changing the position of the first semicircular ring, the position of the reflected light spot can be adjusted to adapt to the detection of pre-buried grooves with different spacings, and the diffusion plate in the second semicircular ring is used to diffuse the light spot, and the gap is used to form light, so that the device can switch the light spot and light detection mode. The light is conducive to the detection of the pre-buried groove, and the light spot is conducive to the detection of the anchor rod of the pre-buried groove. The device can switch the detection mode according to real time to adapt to the classification detection of the pre-buried groove and the anchor rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in combination with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0026] Figure 1 It is a schematic diagram of the overall structure of a tunnel pre-buried groove positioning detection device of the present invention;

[0027] Figure 2 It is a schematic diagram of the front cross-sectional structure of the middle plate of the present invention;

[0028] Figure 3 yes Figure 2 Schematic diagram of the structure at A in the middle;

[0029] Figure 4 It is a schematic diagram of the front cross-sectional structure of the centering assembly of the present invention;

[0030] Figure 5 It is a schematic diagram of the connection structure between the second semicircular ring and the diffuser plate of the present invention;

[0031] Figure 6 It is a schematic diagram of the connection structure between the first semicircular ring and the fixing plate of the present invention;

[0032] Figure 7 It is a schematic diagram of the connection structure of the first semicircular ring and the second semicircular ring of the present invention;

[0033] Figure 8 This Figure 7 Schematic diagram of the structure at B in the middle;

[0034] Fig. 9 It is a schematic diagram of the connection structure between the middle plate and the side connecting rod of the present invention;

[0035] Fig.10 yes Fig. 9 Schematic diagram of the structure at C in the middle;

[0036] Fig.11 It is a schematic diagram of the connection structure between the rotating disk and the fixed cylinder of the present invention;

[0037] Fig.12 yes Fig.11 Schematic diagram of the structure at point D in the middle.

[0038] Numbers in the figure: 1, tunnel vault; 2, embedded channel body; 3, middle plate; 4, support leg; 5, wheel; 6, first electric push rod; 7, limit slider; 8, centering assembly; 801, side rod; 802, first spring; 803, sliding sleeve; 804, ball bearing; 9, push frame; 10, turntable; 11, calibration assembly; 1101, second electric push rod; 1102, first semicircular ring; 1103, fixing plate; 1104, second semicircular ring; 1105, diffusion plate; 1106 , gap; 1107, mirror; 12, laser; 13, second spring; 14, traction rope; 15, guide wheel; 16, rotating shaft; 17, fixing cylinder; 18, embedded anchor rod; 19, damping pad; 20, connecting plate; 21, rotating plate; 22, middle rod; 23, diffusion adjustment assembly; 2301, docking groove; 2302, docking rod; 2303, sliding rod; 2304, third spring; 2305, pull rope; 2306, guide frame; 24, vortex spring; 25, bottom plate. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0040] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0041] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0042] Example

[0043] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0044] like Figure 1-Figure 12 As shown, a tunnel pre-embedded groove positioning detection device includes a tunnel vault 1, an embedded groove body 2 is installed on the inner wall of the tunnel vault 1, and an embedded anchor rod 18 is connected to the top of the embedded groove body 2. The embedded groove body 2 is fixed to the inside of the tunnel vault 1 by the embedded anchor rod 18. Before installing the embedded groove body 2, the device first performs positioning detection on the installation point of the embedded anchor rod 18. After the embedded groove body 2 is installed, the installation position of the embedded groove body 2 and the distance between two adjacent embedded groove bodies 2 are detected. A middle plate 3 is arranged below the tunnel vault 1, and a push frame 9 is fixedly connected to the front surface of the middle plate 3. The push frame 9 is used to push the device forward as a whole The middle plate 3 is moved backward so as to detect the embedded channel body 2 and the embedded anchor rod 18 at different positions. A supporting leg 4 is fixedly connected to the bottom of the middle plate 3. A bottom plate 25 is arranged at the bottom of the supporting leg 4. A first electric push rod 6 is fixedly installed in the middle of the bottom plate 25. Wheels 5 are rotatably connected to the left and right sides of the bottom plate 25. The middle plate 3 and the bottom plate 25 are used to support the device as a whole. The first electric push rod 6 is used to adjust the height of the device as a whole, so as to ensure the accuracy during detection. Centering components 8 are installed on the left and right sides of the middle plate 3. The centering components 8 can adjust the left and right position of the device as a whole and adapt to the use of tunnels of different widths. The middle plate 3 A push frame 9 is fixedly provided at the front end, a turntable 10 is rotatably installed inside the middle plate 3, a calibration component 11 is provided on the outside of the turntable 10, lasers 12 are installed at equal angles inside the turntable 10, and the lasers 12 are connected to adjacent lasers 12 through a second spring 13. When the rightmost laser 12 in the turntable 10 is pulled, the second springs 13 at each position are stretched synchronously, so that the lasers 12 at each position are stretched synchronously while maintaining an equidistant state, thereby performing positioning detection work on the installation point of the embedded anchor rod 18. The leftmost laser 12 is fixedly connected to the turntable 10, and the lasers 12 at other positions are connected to the turntable 10. The laser 12 on the far right is connected by a sliding connection. A traction steel rope 14 is bolted to the laser 12. By pulling the traction steel rope 14, the lasers 12 at various locations on the device can be expanded or contracted synchronously. When the laser 12 contracts, the light spots of the lasers 12 at various locations are concentrated to the highest degree. At this time, the front half of the calibration component 11 is used to make the light spots of the laser 12 gather into light when passing through the front half of the calibration component 11. At this time, the embedded groove body 2 can be detected by light. When the light spots of the laser 12 pass through the back half of the calibration component 11, the light is reflected, so that the device can perform positioning detection work on the distance between two adjacent embedded groove bodies 2.

[0045] In this example, the left and right sides of the first electric push rod 6 are fixedly connected with a limit slider 7, and the connection between the limit slider 7 and the support leg 4 is a sliding connection. The middle plate 3 forms a lifting structure with the bottom plate 25 through the support leg 4, the first electric push rod 6 and the limit slider 7. Through the lifting structure on the device, the middle plate 3 can be aligned with the tunnel to ensure the accuracy of subsequent inspections, and at the same time enable the device to adapt to tunnels of different heights for use.

[0046] In this example, the centering component 8 includes a side connecting rod 801 fixedly installed on the left and right sides of the middle plate 3, and the surface of the side connecting rod 801 is fixedly connected to a first spring 802, and the front end of the first spring 802 is fixedly connected to a sliding sleeve 803, and the interior of the sliding sleeve 803 is rotatably connected to a ball 804. The first spring 802 enables the ball 804 to support the inner wall of the tunnel, so that the middle plate 3 remains in a centered state to adapt to the use of tunnels of different widths, thereby improving the applicability of the device.

[0047] In this example, the balls 804 are evenly distributed on the surface of the sleeve 803, and the inner wall of the sleeve 803 fits with the outer surface of the side connecting rod 801. The sleeve 803 and the side connecting rod 801 fit together, so that the sleeve 803 can move horizontally left and right, thereby improving the stability of the device during operation. The balls 804 can reduce the resistance of the device when it moves forward and backward as a whole, so that the device will not cause excessive wear when moving, thereby ensuring the durability of the device.

[0048] In this example, the calibration component 11 includes a second electric push rod 1101 fixedly installed on the rear side of the middle plate 3, a first semicircular ring 1102 is fixedly connected to the right side of the second electric push rod 1101, the first semicircular ring 1102 and the middle plate 3 are connected in a sliding manner, a fixing plate 1103 is welded to the right side of the first semicircular ring 1102, a second semicircular ring 1104 is welded to the front end of the fixing plate 1103, a diffusion plate 1105 is fixedly installed inside the lower half of the second semicircular ring 1104, and a diffuser plate 1105 is fixedly installed in the middle of the upper half of the second semicircular ring 1104. A gap 1106 is provided, and the diffuser 1105 in the second semicircular ring 1104 can disperse the light source. The dispersed light source will form a line after passing through the gap 1106, so that the device can accurately detect the embedded groove. The front surface of the first semicircular ring 1102 is provided with a mirror 1107. The mirror 1107 of the first semicircular ring 1102 can reflect the irradiated light spot so that the spacing between two adjacent embedded grooves can be detected during subsequent detection. The device can switch the detection mode according to the detection object.

[0049] In this example, the mirror 1107 is a curved structure, and the position of the mirror 1107 corresponds to the position of the laser 12. The first semicircular ring 1102, the fixed plate 1103, the second semicircular ring 1104 and the diffuser 1105 are a whole. The mirror 1107, the first semicircular ring 1102, the second semicircular ring 1104 and the central axis of the turntable 10 are collinear. The curved structure of the mirror 1107 makes the reflection angle of the laser 12 change when the front and rear positions of the first semicircular ring 1102 change, thereby adapting to the detection of two pre-buried grooves at different intervals. Compared with fixed-interval detection, the device is more adjustable.

[0050] In this example, the traction steel rope 14 is connected to the rotating shaft 16 through the guide wheel 15, and the rotating shaft 16 and the turntable 10 are rotatably connected. The front end of the turntable 10 is fixedly connected with a fixed cylinder 17 located on the outside of the rotating shaft 16, and a damping pad 19 is tightly arranged on the outside of the fixed cylinder 17. The damping pad 19 and the middle plate 3 are fixedly connected. Through the traction steel rope 14 and the guide wheel 15, the inspection personnel can automatically pull the traction steel rope 14 during the rotation of the rotating shaft 16. Compared with directly pulling the traction steel rope 14 for adjustment, the device is more precise in adjustment. The damping pad 19 can adjust the initial angle of the turntable 10, thereby adjusting the laser point on the far left to adapt to the use of different pre-buried groove back anchors, thereby improving the scope of application.

[0051] In this example, a rotating plate 21 is rotatably installed on the outer side of the front end of the rotating shaft 16, and a middle rod 22 is fixedly set in the middle of the front end of the rotating shaft 16. The rotating plate 21 is connected to the middle rod 22 through a vortex spring 24. A connecting plate 20 is fixedly connected to the outer side of the rotating shaft 16. The outer surface of the connecting plate 20 fits with the inner wall of the fixed cylinder 17. When the rotating shaft 16 is rotated, the device can first rotate the rotating plate 21, and a diffusion adjustment component 23 is installed between the connecting plate 20 and the fixed cylinder 17. The diffusion adjustment component 23 facilitates the subsequent adjustment of the diffusion of the light spot. When the rotating plate 21 is rotated, the device can first act on the diffusion adjustment component 23, and then act on the rotating shaft 16 through the vortex spring 24, so as to subsequently accurately adjust and fix the rotating shaft 16.

[0052] In this example, the diffusion adjustment component 23 includes a docking groove 2301 opened on the surface of the fixed cylinder 17, and a docking rod 2302 is fitted inside the docking groove 2301. A sliding rod 2303 is fixedly connected to the lower part of the front end of the docking rod 2302. A third spring 2304 is sleeved on the outer side of the sliding rod 2303. The head and tail ends of the third spring 2304 are respectively connected to the sliding rod 2303 and the connecting plate 20. A pull rope 2305 is fixedly connected to the front end of the sliding rod 2303. The pull rope 2305 is connected to the rotating plate 21 through the guide frame 2306. In the process of rotating the rotating plate 21, the rotating plate 21 can first By pulling the docking rod 2302 and the sliding rod 2303 through the pull rope 2305, the third spring 2304 is stretched until the docking rod 2302 is disengaged from the inside of the docking groove 2301. At this time, the rotating plate 21 will drive the connecting plate 20 to rotate until the docking rod 2302 moves to the inside of the next docking groove 2301. Compared with manual adjustment, the adjustment method of this device is more convenient. The guide frame 2306 and the connecting plate 20 are fixedly connected, and the sliding rod 2303 and the connecting plate 20 are limited sliding connections, which ensure that the sliding rod 2303 can move smoothly back and forth in the axial direction without rotating.

[0053] It should be noted that the present invention is a tunnel pre-buried groove positioning detection device and method. First, Figure 1-Figure 4 As shown, the device is supported as a whole by supporting legs 4, bottom plate 25 and wheels 5, and the upper surface of the middle plate 3 is adjusted to be flush with the bottom end of the arc surface of the tunnel vault 1, so that the central axis position of the turntable 10 in the middle plate 3 is located at the center of the arc surface of the tunnel vault 1. At this time, the axial centering of the tunnel vault 1 and the connecting plate 20 is completed. After the axial centering is completed, the longitudinal centering is performed, and the first spring 802 on the side connecting rod 801 is used to make the sliding sleeves 803 on the left and right sides of the middle plate 3 tighten the left and right sides of the inner wall of the tunnel. The staff pushes the push frame 9 to move the device forward as a whole, and the ball 804 can reduce the resistance to movement and ensure the centering work at the same time. At this time, the middle plate 3 and the turntable 10 are centered, and the longitudinal centering work is completed, so that the subsequent positioning and detection of the embedded groove is more accurate. The device uses the centering component 8 and the first electric push rod 6 to enable the device to adapt to tunnels of different vault sizes and heights.

[0054] like Figure 1-Figure 3 and Figure 9-12As shown, through the lasers 12 installed at equal angles in the turntable 10, after the lasers 12 are turned on, the top of the tunnel vault 1 presents equidistantly distributed light spots, so as to judge whether the installation position of the embedded anchor rod 18 on the embedded channel body 2 is consistent with the position of the irradiated light spots, so as to perform positioning detection on the installation position of the embedded anchor rod 18. During the positioning detection, the angle of the fixing cylinder 17 can also be adjusted and fixed by the damping pad 19, so as to adjust the initial angle of the turntable 10, so that the light spot generated by the leftmost laser 12 in the turntable 10 is consistent with the leftmost installation point of the embedded anchor rod 18, and the diffusion degree of the rightmost laser 12 is adjusted according to the number of embedded anchors installed, and the turntable 21 is pulled so that the turntable 21 first pulls the docking rod 2302 and the sliding rod 2303 through the pull rope 2305, and the guide frame 2306 is used to guide the pull rope 2305, so that the third spring 2304 is stretched until The docking rod 2302 is disengaged from the inside of the docking groove 2301. At this time, the rotating plate 21 drives the rotating shaft 16 and the middle rod 22 to rotate under the action of the vortex spring 24, and the middle rod 22 drives the connecting plate 20 to rotate until the docking rod 2302 moves to the inside of the next docking groove 2301 under the action of the third spring 2304, and the connecting plate 20 and the fixing tube 17 are engaged again. At the same time, the traction steel rope 14 pulls the rightmost laser 12 through the guide wheel 15, and the second springs 13 at various positions are stretched synchronously. The lasers 12 with equal angle distribution expand while maintaining the equal angle distribution, so that the device can accurately adjust the diffusion degree of the light spots generated by the lasers 12 at various locations. At this time, except for the lasers 12 at the far left, the rest of the lasers 12 are synchronously extended and retracted. In the process of synchronous extension and retraction of the lasers 12 at various locations, the concentration degree of the light spots irradiated by the lasers 12 changes to adapt to different numbers of embedded anchor rods 18 for positioning detection.

[0055] like Figure 1-Figure 3 and Figure 5-Figure 8As shown, after the embedded channel body 2 is installed, the position of the calibration component 11 is adjusted by the second electric push rod 1101, and the mirror 1107 on the first semicircular ring 1102 can reflect the laser 12 to the front end of the device, thereby realizing the equidistant detection function. Since the mirror 1107 is a curved surface, the front and rear positions of the mirror 1107 are different, and the reflection angle will also change. The position of the light spot generated on the inner wall of the tunnel will also change accordingly. The installation distances of two adjacent embedded channel bodies 2 are compared by adjusting the position of the light spot, so that the device can calibrate multiple embedded channel bodies 2. Spacing positioning detection, when the second semicircular ring 1104 of the front half of the calibration component 11 moves backward, the light source of the laser 12 can be dispersed by the diffuser 1105 and pass through the gap 1106 to form light covering the upper part of the inner wall of the tunnel. Compared with a point light source, the lines formed by the diffuser 1105 and the gap 1106 are more accurate and efficient when detecting the embedded groove body 2, ensuring that the device is more convenient when detecting the embedded groove body 2. When classifying and detecting the embedded anchor rod 18 and the embedded groove body 2, the device can switch the light spot and light irradiation state of the laser 12.

[0056] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A tunnel pre-buried channel positioning detection device, comprising a tunnel vault (1), a pre-buried channel body (2) being mounted on the inner wall of the tunnel vault (1), and a pre-buried anchor rod (18) being connected above the pre-buried channel body (2), characterized in that: A middle plate (3) is arranged below the tunnel vault (1), a push frame (9) is fixedly connected to the front surface of the middle plate (3), a support leg (4) is fixedly connected to the bottom of the middle plate (3), a bottom plate (25) is arranged at the bottom of the support leg (4), a first electric push rod (6) is fixedly installed in the middle of the bottom plate (25), wheels (5) are rotatably connected to the left and right sides of the bottom plate (25), centering components (8) are installed on both the left and right sides of the middle plate (3), and a push frame (9) is fixedly arranged at the front end of the middle plate (3). A turntable (10) is rotatably mounted inside the middle plate (3), a calibration assembly (11) is arranged outside the turntable (10), lasers (12) are mounted at equal angles inside the turntable (10), the lasers (12) are connected to adjacent lasers (12) via a second spring (13), the leftmost laser (12) is fixedly connected to the turntable (10), the lasers (12) at other positions are slidably connected to the turntable (10), and a traction steel rope (14) is bolted to the rightmost laser (12); The calibration component (11) comprises a second electric push rod (1101) fixedly mounted on the rear side of the middle plate (3); a first semicircular ring (1102) is fixedly connected to the right side of the second electric push rod (1101); the first semicircular ring (1102) and the middle plate (3) are connected in a sliding manner; a fixing plate (1103) is welded to the right side of the first semicircular ring (1102); a second semicircular ring (1104) is welded to the front end of the fixing plate (1103); a diffusion plate (1105) is fixedly mounted inside the lower half of the second semicircular ring (1104); a gap (1106) is provided in the middle of the upper half of the second semicircular ring (1104); and a mirror surface (1107) is provided on the front surface of the first semicircular ring (1102); The mirror surface (1107) is a curved surface structure; the position of the mirror surface (1107) corresponds to the position of the laser (12); the first semicircular ring (1102), the fixing plate (1103), the second semicircular ring (1104) and the diffusion plate (1105) are a whole; and the central axes of the mirror surface (1107), the first semicircular ring (1102), the second semicircular ring (1104) and the turntable (10) are collinear.

2. A tunnel pre-buried groove positioning detection device according to claim 1, characterized in that: The left and right sides of the first electric push rod (6) are fixedly connected to limit sliders (7); the limit sliders (7) and the support legs (4) are connected in a sliding manner; the middle plate (3) forms a lifting structure with the bottom plate (25) through the support legs (4), the first electric push rod (6) and the limit sliders (7).

3. A tunnel pre-buried groove positioning detection device according to claim 1, characterized in that: The centering assembly (8) comprises side connecting rods (801) fixedly mounted on the left and right sides of the middle plate (3); a first spring (802) is fixedly connected to the surface of the side connecting rod (801); a sliding sleeve (803) is fixedly connected to the front end of the first spring (802); and a ball bearing (804) is rotatably connected to the interior of the sliding sleeve (803).

4. A tunnel pre-buried groove positioning detection device according to claim 3, characterized in that: The balls (804) are evenly distributed on the surface of the sliding sleeve (803), and the inner wall of the sliding sleeve (803) and the outer surface of the side connecting rod (801) are in contact with each other.

5. The tunnel pre-buried groove positioning detection device according to claim 1, characterized in that: The traction steel rope (14) is guided by a guide wheel (15) and connected to a rotating shaft (16); the rotating shaft (16) and the rotating disk (10) are rotatably connected; a fixed cylinder (17) located outside the rotating shaft (16) is fixedly connected to the front end of the rotating disk (10); a damping pad (19) is tightly arranged on the outside of the fixed cylinder (17); and the damping pad (19) and the middle plate (3) are fixedly connected.

6. A tunnel pre-buried groove positioning detection device according to claim 5, characterized in that: A rotating plate (21) is rotatably mounted on the outer side of the front end of the rotating shaft (16); a middle rod (22) is fixedly mounted in the middle of the front end of the rotating shaft (16); the rotating plate (21) is connected to the middle rod (22) via a vortex spring (24); a connecting plate (20) is fixedly connected to the outer side of the rotating shaft (16); an outer surface of the connecting plate (20) and an inner wall of the fixed cylinder (17) are in contact with each other; and a diffusion adjustment component (23) is mounted between the connecting plate (20) and the fixed cylinder (17).

7. A tunnel pre-buried groove positioning detection device according to claim 6, characterized in that: The diffusion adjustment component (23) comprises a docking groove (2301) formed on the surface of the fixed cylinder (17); a docking rod (2302) is fitted inside the docking groove (2301); a sliding rod (2303) is fixedly connected below the front end of the docking rod (2302); a third spring (2304) is sleeved on the outer side of the sliding rod (2303); the first and second ends of the third spring (2304) are respectively connected to the sliding rod (2303) and the connecting plate (20); a pull rope (2305) is fixedly connected to the front end of the sliding rod (2303); the pull rope (2305) is connected to the rotating plate (21) via a guide frame (2306); the guide frame (2306) and the connecting plate (20) are fixedly connected; and the sliding rod (2303) and the connecting plate (20) are limitedly slidably connected.

8. A method for using a tunnel pre-buried groove positioning detection device, according to the tunnel pre-buried groove positioning detection device of claim 1, characterized in that: The following steps are involved: S1: The entire device is supported by supporting legs (4), a bottom plate (25) and wheels (5), and the upper surface of the middle plate (3) is adjusted to be flush with the bottom end of the arc surface of the tunnel vault (1), so that the central axis of the rotating disk (10) inside the middle plate (3) is located at the center of the arc surface of the tunnel vault (1), and the axial centering work is completed at this time; S2: After the axial centering is completed, longitudinal centering is performed. The left and right sides of the middle plate (3) are supported against the left and right sides of the inner wall of the tunnel by the centering component (8), so that the middle plate (3) and the turntable (10) are centered, and the longitudinal centering work is completed. At this time, the embedded groove is positioned and detected. The centering component (8) and the first electric push rod (6) are used to enable the device to be used in tunnels of different vault sizes and heights; S3: A laser (12) installed at an equal angle is used to illuminate a light spot on the top of the tunnel vault (1) to determine whether the installation position of the embedded anchor rod (18) on the embedded channel body (2) is consistent with the position of the illuminated light spot, thereby performing positioning detection on the installation position of the embedded anchor rod (18). According to the number of embedded anchors installed, the traction steel rope (14) on the rightmost laser (12) is pulled so that the lasers (12) at all locations except the leftmost are synchronously extended and retracted. During the synchronous extension and retraction of the lasers (12) at all locations, the concentration of the illuminated light spots of the lasers (12) changes to adapt to the use of different numbers of embedded anchor rods (18). S4: After the embedded channel body (2) is installed, the rear half of the calibration component (11) can reflect the laser (12) to the front end of the device during the movement, thereby realizing an equidistant detection function. By comparing the installation distances of the embedded channel bodies (2) on the front and rear sides, the device can perform spacing positioning and detection on multiple embedded channel bodies (2). The front half of the calibration component (11) can disperse the light of the laser (12) during the backward movement, and the device can switch the light spot and light irradiation state of the laser (12) to respectively perform classified detection on the embedded anchor rod (18) and the embedded channel body (2).

Images