A measuring device for use at tunnel construction sites

Abstract

This invention discloses a measuring device for tunnel construction sites, relating to the field of construction measuring equipment. It includes a measuring vehicle with a drive arm rotatably mounted on it, and two measuring instruments movably mounted on the drive arm. It also includes an impact rebound protection device installed on the measuring vehicle. It should be noted that in this invention, the side impact plates and front impact plates effectively deflect falling rocks. If the falling rocks are too large, the measuring instruments can be stored inside the measuring vehicle for protection, and the rotating storage shaft drives the synchronous support frame to rotate, lifting the measuring vehicle and sliding the falling rocks away, further ensuring the safety of the equipment on the measuring vehicle. This also allows the synchronous support frame to move, thereby expanding the support area of ​​the measuring vehicle. Furthermore, when a rock falls on the front impact plate, an active cleaning strip moves laterally to remove the rock from the front of the measuring vehicle, ensuring a clean path for the vehicle's movement.

Description

Technical Field

[0001] This invention relates to the field of construction surveying equipment technology, and in particular to a surveying device for use in tunnel construction sites. Background Technology

[0002] The Chazhenliangzi Tunnel adopts a left-right separated tunnel design, with two entrances at both ends. Construction began simultaneously at both ends, with the right tunnel being excavated first. The excavation distance between the two tunnels was staggered by 30 meters. The overall construction plan followed the principles of "advanced pipe laying, strict grouting, short advances, weak blasting, strong support, frequent monitoring, strong ventilation, rapid closure, and tight lining." It should be noted that after the tunnel is excavated, measurements are still required inside the tunnel to ensure operational accuracy. The measurement data can be used to correct the excavation direction in real time, ensuring the final breakthrough accuracy and effectively guaranteeing construction safety.

[0003] Currently, traditional manual surveying methods in tunnel engineering face safety hazards such as collapses and harmful gases. In addition, the complex environment of the tunnel excavation face, with problems such as dust, dampness, and insufficient light, further increases the difficulty and risk of manual surveying. Therefore, in modern tunnel construction surveying, measuring equipment is installed on surveying vehicles to replace manual surveying, which can effectively avoid many problems. However, during the surveying process, the problem of falling rocks in the tunnel cannot be avoided. If a large number of rocks hit the measuring equipment on the surveying vehicle repeatedly, it can easily damage the measuring equipment. Or, when a large rock falls, it can even destroy the measuring equipment at once. Furthermore, if the rock falls in front of the surveying vehicle, it can also cause the surveying vehicle to be unable to move forward. Summary of the Invention

[0004] The purpose of this invention is to provide a measuring device for tunnel construction sites to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A measuring device for use at a tunnel construction site includes a measuring vehicle, on which a drive arm is rotatably mounted, and on which two measuring instruments are movably mounted;

[0007] It also includes an impact rebound protection device, which is installed on the measuring vehicle and is used to rebound falling rocks in the tunnel. The impact rebound protection device includes an impact main support, which is movably installed on the measuring vehicle. Side impact plates are rotatably installed on both sides of the impact main support, and a front impact plate is rotatably installed on the top side of the measuring vehicle. Three impact sleeves are installed on the top side of the measuring vehicle. A first impact pressing rod is movably installed in two of the impact sleeves located below the two side impact plates. The first impact pressing rod is used to support the side impact plates. A second impact pressing rod is movably installed in the other impact sleeve. Impact rebound springs are installed in all three impact sleeves. The three impact rebound springs are respectively installed on the two first impact pressing rods and the second impact pressing rod. The second impact pressing rod is used to support the front impact plate. A rotary storage shaft is rotatably installed inside the measuring vehicle. A rotary storage seat is installed on the rotary storage shaft, and the drive arm is installed on the rotary storage seat.

[0008] The impact rebound protection device is equipped with an impact support protection device, which is used to support and protect the measuring vehicle; the impact support protection device includes two synchronous support frames, which are respectively movably installed on both ends of the rotary storage shaft, and support wheels are rotatably installed on the synchronous support frames;

[0009] It also includes an impact active cleaning device, which is installed on the measuring vehicle and is used to clean the front of the measuring vehicle. The impact active cleaning device includes a transverse mounting plate, which is installed on the measuring vehicle. An active cleaning strip is slidably installed on the transverse mounting plate. The active cleaning strip moves to remove fallen rocks in front of the measuring vehicle.

[0010] Furthermore, in a preferred embodiment of the present invention, the impact rebound protection device further includes a sealing slide plate, which is slidably installed inside the measuring vehicle. The movement of the sealing slide plate seals the measuring vehicle. Two pull-back springs are installed on one side of the sealing slide plate, and the pull-back springs are installed inside the measuring vehicle.

[0011] An L-shaped locking plate is installed on the main impact support. The L-shaped locking plate is inserted into the sealing slide plate, and a slot is opened on the bottom side of the rotary storage seat, into which the L-shaped locking plate is inserted.

[0012] Furthermore, in a preferred embodiment of the present invention, the measuring vehicle is provided with a downward pressure groove, and the impact main support is slidably installed in the downward pressure groove;

[0013] A support spring is installed on the bottom inner wall of the pressure groove, and the support spring is mounted on the impact main support.

[0014] Furthermore, in a preferred embodiment of the present invention, two rotary slots are provided inside the measuring vehicle, and the rotary storage shaft is rotatably installed in the two rotary slots;

[0015] A torsion spring is installed on the inner wall of the rotary groove, and the torsion spring is mounted on the rotary storage shaft.

[0016] Furthermore, in a preferred embodiment of the present invention, the impact support protection device further includes two L-shaped unfolding frames, and unfolding slots are provided on both sides of the measuring vehicle, with the two L-shaped unfolding frames rotatably installed in the two unfolding slots respectively;

[0017] Both sides of the rotary storage shaft are provided with transverse pull-out slots. The two L-shaped unfolding frames are slidably installed in the two transverse pull-out slots respectively. A retraction spring is installed on one side of the L-shaped unfolding frame. The retraction spring is installed on the inner wall of the transverse pull-out slot.

[0018] The L-shaped unfolding frame is equipped with a rotating push shaft, and the rotation of the L-shaped unfolding frame drives the synchronous support frame to move through the rotating push shaft.

[0019] Furthermore, in a preferred embodiment of the present invention, the measuring vehicle has two mounting slots, and a synchronous rotating shaft is rotatably mounted in each of the two mounting slots. The two L-shaped unfolding frames are respectively mounted on the two synchronous rotating shafts.

[0020] A deployable torsion spring is installed on the synchronous rotating shaft, and the deployable torsion spring is installed on the inner wall of the mounting groove.

[0021] Furthermore, in a preferred embodiment of the present invention, a push frame is installed at the top of each of the two synchronous rotating shafts, and two push frames are slidably installed on the top side of the measuring vehicle, with the two push frames respectively movably mounted on the two push frames;

[0022] A pusher slide shaft is installed on the pusher frame, and the pusher slide shaft is movably installed inside the pusher rotating frame.

[0023] Furthermore, in a preferred embodiment of the present invention, the impact active cleaning device further includes a rotating push-pull rod, which is rotatably mounted on the transverse mounting plate;

[0024] A push-pull shaft is rotatably mounted on the rotating push-pull rod, and a push-pull groove is provided on the top side of the active cleaning strip, with the push-pull shaft slidably installed in the push-pull groove.

[0025] Furthermore, in a preferred embodiment of the present invention, a transition rod is installed on the top side of the rotating push-pull rod, and a transition push shaft is installed on the transition rod;

[0026] An L-shaped pusher is slidably mounted on one side of the measuring vehicle, and the adapter push shaft is movably mounted inside the L-shaped pusher.

[0027] Furthermore, in a preferred embodiment of the present invention, a pop-out spring is installed on one side of the L-shaped pusher, and the pop-out spring is installed inside the measuring vehicle;

[0028] A pushing cylinder is installed on one side of the L-shaped pusher, and a synchronizing frame is installed on the second impact pressing rod. A wedge-shaped push plate is installed on the synchronizing frame. The wedge-shaped push plate is used to squeeze the pushing cylinder to move and to drive the L-shaped pusher to move.

[0029] The beneficial effects of the measuring device for tunnel construction sites proposed in this invention are:

[0030] In this invention, by setting up an impact rebound protection device, when a stone falls on the impact side impact plate, the side impact plate squeezes the first impact lowering rod downward, causing the impact rebound spring to be stressed. Then, under the rebound force of the impact rebound spring, the first impact lowering rod is driven back to its original position, and the side impact plate is driven back to its original position to bounce the falling stone away, thus protecting the measuring vehicle. This operation can also be used for rebound protection when the front impact plate is impacted. If the falling stone is too large, the measuring instrument is stored inside the measuring vehicle for protection, avoiding damage from falling stones. Furthermore, the main impact main support moves, causing the L-shaped locking plate to move downward and disengage from the sealing slide plate, sealing the measuring vehicle for further protection. At the same time, the rotating storage seat drives the rotating storage shaft to rotate, causing the rotating storage shaft to drive the synchronous support frame to rotate, thereby lifting the measuring vehicle and sliding the falling stone away, further ensuring the safety of the equipment on the measuring vehicle.

[0031] Furthermore, in this invention, by setting up an impact support protection device, if the falling rock is too large and the side impact plate cannot deflect it, the side impact plate rotates excessively and squeezes the corresponding push frame, thereby causing the L-shaped unfolding frame to rotate and push the synchronous support frame to move through the push shaft. The synchronous support frame moves horizontally in the transverse pull-out groove, and the retraction spring is stressed, thereby expanding the support area of ​​the measuring vehicle and avoiding the problem of the measuring vehicle being hit by a large falling rock and overturning.

[0032] Furthermore, in this invention, by setting up an impact active cleaning device, when a rock falls on the front impact plate, the front impact plate is squeezed, and when the second impact pressing rod moves down, the second impact pressing rod drives the wedge-shaped push plate to move down through the synchronous frame, thereby driving the active cleaning strip to slide. The active cleaning strip moves laterally to remove the rock on the front side of the measuring vehicle, ensuring the cleanliness of the measuring vehicle's forward path. Attached Figure Description

[0033] Figure 1 A three-dimensional structural diagram of a measuring device for use at a tunnel construction site, provided as an embodiment of the present invention;

[0034] Figure 2 This is a schematic diagram illustrating the connection between the impact main support and the synchronous support rotating frame of a measuring device used at a tunnel construction site, as provided in an embodiment of the present invention.

[0035] Figure 3 A schematic diagram illustrating the connection between a measuring vehicle and an L-shaped unfolding frame, etc., for a measuring equipment used at a tunnel construction site, as provided in an embodiment of the present invention.

[0036] Figure 4 A partial structural diagram illustrating the connection between a sealing slide plate and an L-shaped locking plate, etc., of a measuring device used at a tunnel construction site, provided as an embodiment of the present invention.

[0037] Figure 5 This is a cross-sectional structural diagram showing the connection between the impact sleeve and the first impact pressure rod of a measuring device used at a tunnel construction site, as provided in an embodiment of the present invention.

[0038] Figure 6 This is a cross-sectional structural diagram showing the connection between the rotary storage base and the rotary storage shaft of a measuring device used at a tunnel construction site, as provided in an embodiment of the present invention.

[0039] Figure 7 This invention provides a measuring device for use at a tunnel construction site. Figure 6 A schematic diagram of the structure of part A;

[0040] Figure 8 This is a structural diagram illustrating the connection between the push-rotating frame and the push-frame of a measuring device used at a tunnel construction site, as provided in an embodiment of the present invention.

[0041] Figure 9 This is a partial cross-sectional view of the connection between an L-shaped unfolding frame and a synchronous rotating shaft, etc., of a measuring device used at a tunnel construction site, as provided in an embodiment of the present invention.

[0042] Figure 10This is a schematic diagram illustrating the connection between a transverse mounting plate and an active cleaning strip, etc., of a measuring device used at a tunnel construction site, as provided in an embodiment of the present invention.

[0043] In the diagram: 1-Measuring carriage; 2-Drive arm; 3-Measuring instrument; 4-Impact rebound protection device; 401-Impact main support; 402-Side impact plate; 403-Front impact plate; 404-Impact sleeve; 405-First impact pressing rod; 406-Impact rebound spring; 407-Second impact pressing rod; 408-Rotary storage seat; 409-Sealing slide plate; 410-L-shaped locking plate; 411-Pull-back spring; 412-Pull-down groove; 413-Support spring; 414-Slot; 415-Rotary storage shaft; 416-Rotary groove; 417-Rotary torsion spring; 5-Impact support protection device; 501-Synchronous support rotating frame; 502-Support... Support wheel; 503-lateral pull-out groove; 504-retract spring; 505-expansion groove; 506-L-shaped expansion frame; 507-mounting groove; 508-synchronous rotating shaft; 509-expansion torsion spring; 510-push rotating frame; 511-push frame; 512-push sliding shaft; 513-rotation push shaft; 6-impact active cleaning device; 601-lateral mounting plate; 602-active cleaning bar; 603-rotation push-pull rod; 604-push-pull shaft; 605-push-pull groove; 606-L-shaped push frame; 607-adapter rod; 608-adapter push shaft; 609-pop-out spring; 610-synchronous frame; 611-wedge-shaped push plate; 612-push cylinder. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0045] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0046] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0047] Furthermore, in the description of this invention, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0048] Furthermore, terms such as "horizontal," "vertical," and "perpendicular" do not imply that components must be absolutely vertical, but rather that they can be slightly tilted. For example, "vertical" simply means that its direction is more vertical relative to "horizontal," not that the structure must be completely vertical, but can be slightly tilted.

[0049] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0050] Please refer to the attached instruction manual. Figures 1-10 The present invention provides a measuring device for tunnel construction sites, which includes a measuring vehicle 1, a drive arm 2 rotatably mounted on the measuring vehicle 1, and two measuring instruments 3 movably mounted on the drive arm 2.

[0051] Furthermore, the measuring equipment for tunnel construction sites provided in this embodiment of the invention also includes an impact rebound protection device 4. The impact rebound protection device 4 is installed on the measuring vehicle 1 and is used to rebound falling rocks inside the tunnel. Specifically, the impact rebound protection device 4 includes an impact main support 401, which is movably installed on the measuring vehicle 1. Side impact plates 402 are rotatably installed on both sides of the impact main support 401, and a front impact plate 403 is rotatably installed on the top side of the measuring vehicle 1. Three impact sleeves 404 are installed on the top side of the measuring vehicle 1, and the two impact sleeves 404 located below the two side impact plates 402 are movable. A first impact pressing rod 405 is movably installed, which supports the side impact plate 402. A second impact pressing rod 407 is movably installed in another impact sleeve 404. An impact rebound spring 406 is installed in each of the three impact sleeves 404. The three impact rebound springs 406 are respectively installed on the two first impact pressing rods 405 and the second impact pressing rod 407. The second impact pressing rod 407 supports the front impact plate 403. In addition, a rotary storage shaft 415 is rotatably installed in the measuring vehicle 1. A rotary storage seat 408 is installed on the rotary storage shaft 415. The drive arm 2 is installed on the rotary storage seat 408.

[0052] It should be noted that, in this embodiment of the invention, during the process of the measuring vehicle 1 manipulating the measuring instrument 3 to measure the tunnel via the drive arm 2, stones on the tunnel may fall and land on the measuring vehicle 1. When the stones land on the impact side impact plate 402, the side impact plate 402 presses down the first impact lowering rod 405, causing the impact rebound spring 406 to be stressed. Under the rebound force of the impact rebound spring 406, the first impact lowering rod 405 is driven back to its original position, and the side impact plate 402 is driven back to its original position to bounce the fallen stones away, protecting the measuring vehicle 1. This operation can also be used for rebound protection when the front impact plate 403 is impacted. If the falling stones are too large, causing the impact main support 401 to... Upon impact, the main impact support 401 moves vertically within the lower pressure groove 412, causing the support spring 413 to contract under force. This, in turn, causes the L-shaped locking plate 410 to move downwards and disengage from the slot 414. Subsequently, under the rotational force of the two rotary torsion springs 417, the rotary storage shaft 415 drives the rotary storage seat 408 to rotate. The rotary storage seat 408 drives the drive arm 2 to rotate, thus storing the measuring instrument 3 inside the measuring vehicle 1 for protection, preventing damage from falling rocks. Simultaneously, the movement of the main impact support 401 causes the L-shaped locking plate 410 to move downwards and disengage from the sealing slide plate 409. At this point, under the pull-back force of the two pull-back springs 411, the sealing slide plate 409 seals the measuring vehicle, providing further protection.

[0053] More specifically, in this embodiment of the invention, an impact support protection device 5 is installed on the impact rebound protection device 4. The impact support protection device 5 is used to support and protect the measuring vehicle 1. The impact support protection device 5 includes two synchronous support rotating frames 501, which are respectively movably installed on both ends of the rotary storage shaft 415. Support wheels 502 are rotatably installed on the synchronous support rotating frames 501. It should be noted that, in this embodiment of the invention, if the falling rock is too large and the side impact plate 402 cannot deflect it, the L-shaped unfolding frame 506 will rotate and push the synchronous support rotating frames 501 to move through the rotating push shaft 513, thereby expanding the support area of ​​the measuring vehicle 1 and preventing it from being hit by excessively large falling rocks and tipping over.

[0054] More specifically, in this embodiment of the invention, an impact active cleaning device 6 is also included. The impact active cleaning device 6 is mounted on the measuring vehicle 1 and is used to clean the front of the measuring vehicle 1. The impact active cleaning device 6 includes a transverse mounting plate 601, which is mounted on the measuring vehicle 1. An active cleaning strip 602 is slidably mounted on the transverse mounting plate 601. The active cleaning strip 602 moves to remove fallen rocks from the front of the measuring vehicle 1. It should be noted that in this embodiment of the invention, when a rock falls on the front impact plate 403, it causes the active cleaning strip 602 to slide, thereby causing the active cleaning strip 602 to move laterally and remove the rock, ensuring the cleanliness of the path forward of the measuring vehicle 1.

[0055] Please refer to the instruction manual attached. Figures 2-7 Furthermore, the impact rebound protection device 4 of the measuring equipment for tunnel construction site provided in the embodiment of the present invention also includes a sealing slide plate 409. The sealing slide plate 409 is slidably installed in the measuring vehicle 1. The sealing slide plate 409 moves to seal the measuring vehicle 1. Two pull-back springs 411 are installed on one side of the sealing slide plate 409. The pull-back springs 411 are installed in the measuring vehicle 1.

[0056] In addition, an L-shaped locking plate 410 is installed on the main impact support 401. The L-shaped locking plate 410 is inserted into the sealing slide plate 409, and a slot 414 is opened on the bottom side of the rotary storage seat 408, in which the L-shaped locking plate 410 is inserted. It should be noted that, in this embodiment of the invention, when the main impact support 401 is impacted and moves downward, it causes the L-shaped locking plate 410 to move downward and disengage from the slot 414. This first causes the rotary storage seat 408 to unlock and drive the drive arm 2 to rotate, storing the measuring instrument 3 inside the measuring carriage 1 for protection. At the same time, the main impact support 401 moves, causing the L-shaped locking plate 410 to move downward and disengage from the sealing slide plate 409. At this time, under the pull force of the two pull springs 411, the sealing slide plate 409 seals the measuring carriage, forming further protection.

[0057] More specifically, in this embodiment of the invention, the measuring vehicle 1 has a downward pressure groove 412, and the impact main support 401 is slidably installed in the downward pressure groove 412; a support spring 413 is installed on the bottom inner wall of the downward pressure groove 412, and the support spring 413 is installed on the impact main support 401. It should be noted that, in this embodiment of the invention, when the impact main support 401 is subjected to excessive impact, the impact main support 401 moves vertically within the downward pressure groove 412, and the support spring 413 contracts under force.

[0058] Please continue to refer to the instruction manual appendix. Figures 2-7 More specifically, in this embodiment of the invention, the measuring carriage 1 has two rotating slots 416, and the rotating storage shaft 415 is rotatably installed in the two rotating slots 416; a rotating torsion spring 417 is installed on the inner wall of the rotating slot 416, and the rotating torsion spring 417 is installed on the rotating storage shaft 415. It should be noted that, in this embodiment of the invention, when the rotating storage seat 408 is unlocked, the rotating storage shaft 415 is driven to rotate under the rebound force of the rotating torsion spring 417, thereby driving the rotating storage seat 408 to store the measuring instrument 3 into the measuring carriage 1.

[0059] Further, please refer to the appendix to the instruction manual. Figure 3 and Figures 8-9 The present invention provides a measuring device for tunnel construction sites. The impact support protection device 5 further includes two L-shaped unfolding frames 506. The measuring vehicle 1 has unfolding slots 505 on both sides. The two L-shaped unfolding frames 506 are rotatably installed in the two unfolding slots 505 respectively. The rotary storage shaft 415 has transverse pull-out slots 503 on both sides. The two L-shaped unfolding frames 506 are slidably installed in the two transverse pull-out slots 503 respectively. A retraction spring 504 is installed on one side of the L-shaped unfolding frame 506. The retraction spring 504 is installed on the inner wall of the transverse pull-out slot 503.

[0060] Furthermore, a rotating push shaft 513 is installed on the L-shaped unfolding frame 506. The rotation of the L-shaped unfolding frame 506 drives the synchronous support rotating frame 501 to move via the rotating push shaft 513. It should be noted that, in this embodiment of the invention, when the side impact plate 402 rotates excessively, it squeezes the corresponding push frame 511. The push frame 511 drives the push rotating frame 510 to rotate via the push sliding shaft 512, thereby driving the L-shaped unfolding frame 506 to rotate. The rotation of the L-shaped unfolding frame 506 drives the synchronous support rotating frame 501 to move via the rotating push shaft 513. The synchronous support rotating frame 501 moves horizontally within the transverse pull-out groove 503, causing the retraction spring 504 to be stressed, thereby expanding the support area of ​​the measuring vehicle 1.

[0061] More specifically, in this embodiment of the invention, the measuring vehicle 1 has two mounting slots 507, and a synchronous rotating shaft 508 is rotatably mounted in each of the two mounting slots 507. Two L-shaped unfolding frames 506 are respectively mounted on the two synchronous rotating shafts 508. An unfolding torsion spring 509 is mounted on the synchronous rotating shaft 508, and the unfolding torsion spring 509 is mounted on the inner wall of the mounting slot 507. It should be noted that, in this embodiment of the invention, the unfolding torsion spring 509 can help the synchronous rotating shaft 508 to reset, thereby driving the L-shaped unfolding frame 506 to reset.

[0062] Please continue to refer to the instruction manual appendix. Figure 3 and Figures 8-9 More specifically, in this embodiment of the invention, each of the two synchronous rotating shafts 508 has a pusher frame 510 mounted on its top end. Two pusher frames 511 are slidably mounted on the top side of the measuring vehicle 1, and each pusher frame 511 is movably mounted on one of the two pusher frames 510. A pusher slide shaft 512 is mounted on each pusher frame 511, and the pusher slide shaft 512 is movably mounted within the pusher frame 510. It should be noted that in this embodiment of the invention, when the pusher frame 511 is pushed, it drives the pusher frame 510 to rotate via the pusher slide shaft 512, while simultaneously the pusher slide shaft 512 slides within the pusher frame 510.

[0063] Further, please refer to the appendix to the instruction manual. Figure 2 and Figure 10 This invention provides a measuring device for tunnel construction sites. The impact active cleaning device 6 further includes a rotating push-pull rod 603, which is rotatably mounted on a transverse mounting plate 601. Additionally, a push-pull shaft 604 is rotatably mounted on the rotating push-pull rod 603. A push-pull groove 605 is formed on the top side of the active cleaning strip 602, and the push-pull shaft 604 is slidably mounted within the push-pull groove 605. It should be noted that, in this embodiment of the invention, when the rotating push-pull rod 603 rotates, it drives the active cleaning strip 602 to move via the push-pull shaft 604, while the push-pull shaft 604 slides within the push-pull groove 605.

[0064] More specifically, in this embodiment of the invention, a connecting rod 607 is installed on the top side of the rotating push-pull rod 603, and a connecting push shaft 608 is installed on the connecting rod 607; an L-shaped push frame 606 is slidably installed on one side of the measuring vehicle 1, and the connecting push shaft 608 is movably installed inside the L-shaped push frame 606. It should be noted that, in this embodiment of the invention, when the L-shaped push frame 606 is pushed, it pushes the connecting push shaft 608 to rotate, causing the connecting push shaft 608 to drive the connecting rod 607 to rotate, and the connecting rod 607 to drive the rotating push-pull rod 603 to rotate. The rotating push-pull rod 603 drives the active cleaning strip 602 to slide through the push-pull shaft 604, thereby achieving the purpose of removing fallen rocks.

[0065] Please continue to refer to the instruction manual appendix. Figure 2 and Figure 10 More specifically, in this embodiment of the invention, a pop-out spring 609 is installed on one side of the L-shaped pusher 606, and the pop-out spring 609 is installed inside the measuring carriage 1;

[0066] Furthermore, a pushing cylinder 612 is installed on one side of the L-shaped pusher 606, and a synchronization frame 610 is installed on the second impact pressing rod 407. A wedge-shaped push plate 611 is installed on the synchronization frame 610. The wedge-shaped push plate 611 is used to squeeze and push the cylinder 612 to move, and also to drive the L-shaped pusher 606 to move. It should be noted that, in this embodiment of the invention, when the front impact plate 403 is impacted, it drives the second impact pressing rod 407 to move downward. The second impact pressing rod 407 drives the synchronization frame 610 to move, and the synchronization frame 610 drives the wedge-shaped push plate 611 to squeeze and push the cylinder 612 to move, which in turn drives the L-shaped pusher 606 to move, and causes the pop-out spring 609 to be stressed, thereby driving the active cleaning strip 602 to move.

[0067] In summary, the working principle of the measuring device for tunnel construction sites provided in this embodiment of the invention is as follows:

[0068] During the process of measuring the tunnel by the measuring instrument 3 operated by the driving arm 2, the stones on the tunnel will fall and land on the measuring vehicle 1. When the stones land on the impact side impact plate 402, the side impact plate 402 will press the first impact lowering rod 405 downward and cause the impact rebound spring 406 to be stressed. Then, under the rebound force of the impact rebound spring 406, the first impact lowering rod 405 will be driven back to its original position, and the side impact plate 402 will be driven back to its original position to bounce away the fallen stones and protect the measuring vehicle 1. When the front impact plate 403 is impacted, it can also be rebounded and protected by this operation.

[0069] Furthermore, if the falling rocks are too large, causing the impact main support 401 to be impacted and moved downwards, the impact main support 401 will move vertically within the pressure groove 412, causing the support spring 413 to contract under force. This will cause the L-shaped locking plate 410 to move downwards and disengage from the slot 414. Subsequently, under the rotational force of the two rotary torsion springs 417, the rotary storage shaft 415 will drive the rotary storage seat 408 to rotate. The rotary storage seat 408 will drive the drive arm 2 to rotate, storing the measuring instrument 3 in the measuring cart 1. The internal structure is protected to prevent damage from falling rocks. In addition, the main impact support 401 moves and causes the L-shaped locking plate 410 to move down and disengage from the sealing slide plate 409. At this time, under the pull force of the two pull springs 411, the sealing slide plate 409 seals the measuring vehicle, forming further protection. At the same time, the rotary storage seat 408 drives the rotary storage shaft 415 to rotate, which in turn drives the synchronous support frame 501 to rotate, thereby lifting the measuring vehicle 1 and sliding away the falling rocks.

[0070] Furthermore, if the falling rocks are too large and the side impact plate 402 is unable to deflect them, the side impact plate 402 will rotate excessively and compress the corresponding push frame 511. The push frame 511 drives the push rotating frame 510 to rotate via the push sliding shaft 512. The rotation of the push rotating frame 510 drives the synchronous rotating shaft 508 to rotate. The synchronous rotating shaft 508 rotates in the mounting groove 507 and forces the unfolding torsion spring 509. At this time, the rotation of the synchronous rotating shaft 508 drives the L-shaped unfolding frame 506 to rotate. The rotation of the L-shaped unfolding frame 506 pushes the synchronous support rotating frame 501 to move via the rotating push shaft 513. The synchronous support rotating frame 501 moves horizontally in the transverse pull-out groove 503 and forces the retraction spring 504, thereby expanding the support area of ​​the measuring vehicle 1 and preventing it from being hit by excessively large falling rocks, thus avoiding the problem of the measuring vehicle 1 overturning.

[0071] Additionally, it should be noted that when the falling rock lands on the front impact plate 403, it compresses the front impact plate 403, causing the second impact pressure rod 407 to move downwards. The second impact pressure rod 407 drives the wedge-shaped push plate 611 to move downwards via the synchronous frame 610. When the wedge-shaped push plate 611 moves downwards, it compresses and pushes the cylinder 612 to move, which in turn pushes the L-shaped push frame 606 to move. This causes the L-shaped push frame 606 to move within the measuring carriage 1, and forces the pop-out spring 609. 606 pushes the adapter push shaft 608 to rotate, causing the adapter push shaft 608 to drive the adapter rod 607 to rotate. The adapter rod 607 drives the rotating push-pull rod 603 to rotate. The rotating push-pull rod 603 drives the active cleaning strip 602 to slide through the push-pull shaft 604. The active cleaning strip 602 slides on the bottom side of the transverse mounting plate 601. At the same time, the push-pull shaft 604 slides in the push-pull groove 605, thereby causing the active cleaning strip 602 to move laterally and remove the fallen rocks, thus ensuring the cleanliness of the forward path of the measuring vehicle 1.

[0072] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A measuring device for use at a tunnel construction site, characterized in that, It includes a measuring vehicle on which a drive arm is rotatably mounted, and on which two measuring instruments are movably mounted; It also includes an impact rebound protection device, which is installed on the measuring vehicle and is used to rebound falling rocks in the tunnel. The impact rebound protection device includes an impact main support, which is movably installed on the measuring vehicle. Side impact plates are rotatably installed on both sides of the impact main support, and a front impact plate is rotatably installed on the top side of the measuring vehicle. Three impact sleeves are installed on the top side of the measuring vehicle. A first impact pressing rod is movably installed in two of the impact sleeves located below the two side impact plates. The first impact pressing rod is used to support the side impact plates. A second impact pressing rod is movably installed in the other impact sleeve. Impact rebound springs are installed in all three impact sleeves. The three impact rebound springs are respectively installed on the two first impact pressing rods and the second impact pressing rod. The second impact pressing rod is used to support the front impact plate. A rotary storage shaft is rotatably installed inside the measuring vehicle. A rotary storage seat is installed on the rotary storage shaft, and the drive arm is installed on the rotary storage seat. The impact rebound protection device is equipped with an impact support protection device, which is used to support and protect the measuring vehicle; the impact support protection device includes two synchronous support frames, which are respectively movably installed on both ends of the rotary storage shaft, and support wheels are rotatably installed on the synchronous support frames; It also includes an impact active cleaning device, which is installed on the measuring vehicle and is used to clean the front of the measuring vehicle; the impact active cleaning device includes a transverse mounting plate, which is installed on the measuring vehicle, and an active cleaning strip is slidably installed on the transverse mounting plate, which moves to remove fallen rocks in front of the measuring vehicle; The impact rebound protection device also includes a sealing slide plate, which is slidably installed inside the measuring vehicle. The movement of the sealing slide plate seals the measuring vehicle. Two pull springs are installed on one side of the sealing slide plate, and the pull springs are installed inside the measuring vehicle. An L-shaped locking plate is installed on the main impact support. The L-shaped locking plate is inserted into the sealing slide plate, and a slot is opened on the bottom side of the rotary storage seat. The L-shaped locking plate is inserted into the slot. The measuring vehicle is provided with a pressure groove, and the impact main support is slidably installed in the pressure groove; A support spring is installed on the bottom inner wall of the pressure groove, and the support spring is installed on the impact main support. The measuring vehicle has two rotary slots, and the rotary storage shaft is rotatably installed in the two rotary slots. A torsion spring is installed on the inner wall of the rotary groove, and the torsion spring is mounted on the rotary storage shaft.

2. The measuring device for tunnel construction sites according to claim 1, characterized in that, The impact support protection device also includes two L-shaped unfolding frames. The measuring vehicle has unfolding slots on both sides, and the two L-shaped unfolding frames are rotatably installed in the two unfolding slots respectively. Both sides of the rotary storage shaft are provided with transverse pull-out slots. The two L-shaped unfolding frames are slidably installed in the two transverse pull-out slots respectively. A retraction spring is installed on one side of the L-shaped unfolding frame. The retraction spring is installed on the inner wall of the transverse pull-out slot. The L-shaped unfolding frame is equipped with a rotating push shaft, and the rotation of the L-shaped unfolding frame drives the synchronous support frame to move through the rotating push shaft.

3. A measuring device for tunnel construction sites according to claim 2, characterized in that, The measuring vehicle has two mounting slots, and a synchronous rotating shaft is rotatably mounted in each of the two mounting slots. The two L-shaped unfolding frames are respectively mounted on the two synchronous rotating shafts. A deployable torsion spring is installed on the synchronous rotating shaft, and the deployable torsion spring is installed on the inner wall of the mounting groove.

4. A measuring device for tunnel construction sites according to claim 3, characterized in that, Each of the two synchronous rotating shafts is equipped with a push frame at its top end, and two push frames are slidably mounted on the top side of the measuring vehicle. The two push frames are respectively movably mounted on the two push frames. A pusher slide shaft is mounted on the pusher frame, and the pusher slide shaft is movably mounted inside the pusher rotating frame.

5. A measuring device for tunnel construction sites according to claim 1, characterized in that, The impact active cleaning device also includes a rotating push-pull rod, which is rotatably mounted on the transverse mounting plate; A push-pull shaft is rotatably mounted on the rotating push-pull rod, and a push-pull groove is provided on the top side of the active cleaning strip, with the push-pull shaft slidably installed in the push-pull groove.

6. A measuring device for tunnel construction sites according to claim 5, characterized in that, A transition rod is installed on the top side of the rotating push-pull rod, and a transition push shaft is installed on the transition rod; An L-shaped pusher is slidably mounted on one side of the measuring vehicle, and the adapter push shaft is movably mounted inside the L-shaped pusher.

7. A measuring device for tunnel construction sites according to claim 6, characterized in that, A pop-out spring is installed on one side of the L-shaped pusher, and the pop-out spring is installed inside the measuring vehicle; A pushing cylinder is installed on one side of the L-shaped pusher, and a synchronizing frame is installed on the second impact pressing rod. A wedge-shaped push plate is installed on the synchronizing frame. The wedge-shaped push plate is used to squeeze the pushing cylinder to move and to drive the L-shaped pusher to move.

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