Auxiliary distance measuring device for tunnel advanced forecasting

Abstract

The utility model discloses an auxiliary distance measuring device for tunnel advanced forecasting, and relates to the technical field of auxiliary distance measuring. The device comprises a bearing vehicle, the upper side of the bearing vehicle is in sliding fit with an L-shaped plate, and one end of the L-shaped plate is in running fit with a laser distance measuring piece; the marker post is located on one side of the bearing vehicle, a pull rope is fixedly matched with one side of the marker post, a lead weight is fixedly matched with the lower end of the pull rope, T-shaped plates are elastically and slidably matched with the two sides of the marker post, and a guide rod is elastically and slidably matched with one end of each T-shaped plate. Through the arrangement of the arc-shaped plate, the arc-shaped plate slides towards the pull rope under the action of the guide rod, and the pull rope is positioned on one side of the marker post through the inner side wall of the arc-shaped plate, so that the problem that a lead weight shakes disorderly when the marker post moves is solved, and the marker post is more convenient to move.

Description

Technical Field

[0001] This utility model belongs to the field of auxiliary ranging, specifically, it relates to an auxiliary ranging device for tunnel advance prediction. Background Technology

[0002] Existing methods for tunnel advance prediction using ground-penetrating radar (GPR) testing primarily employ point-based measurements. This involves the radar moving a certain distance before being triggered by personnel to transmit and receive electromagnetic waves, thus enabling geological surveys. Furthermore, the displacement of the radar device is often measured using a rangefinder wheel.

[0003] Patent application CN222070834U discloses an auxiliary ranging device for tunnel advance prediction. Paragraph 0038 of the specification reveals that: the vertical correction component facilitates the worker's adjustment of the marker to a vertical position; the weight of the plumb bob straightens the rope; and adjusting the marker to a vertical position only requires checking if the distance between the rope and the limiting rod is the same at all points. When the marker is vertical, the level facilitates the worker's adjustment of the laser ranging component to a horizontal position, achieving a user-friendly effect.

[0004] However, in practical applications, it is necessary to use a plumb bob to determine whether the marker is vertical. This is because the plumb bob is placed directly on one side of the marker by a rope, and there is no positioning structure between the marker and the rope. This can easily cause the plumb bob to sway when the marker is moved.

[0005] To address these shortcomings, an auxiliary ranging device for tunnel advance prediction is proposed. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide an auxiliary ranging device for tunnel advance prediction.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0008] An auxiliary ranging device for tunnel advance prediction includes a carrier vehicle, an L-shaped plate that is slidably fitted on the upper side of the carrier vehicle, and a laser ranging component that is rotatably fitted at one end of the L-shaped plate;

[0009] A marker post is located on one side of the carrier vehicle. A pull rope is fixedly fitted to one side of the marker post, and a plumb bob is fixedly fitted to the lower end of the pull rope. T-shaped plates are elastically and slidably fitted to both sides of the marker post. A guide rod is elastically and slidably fitted to one end of the T-shaped plate, and an arc-shaped plate is fixedly fitted to one end of the guide rod. The inner sidewall of the arc-shaped plate is fitted with the pull rope.

[0010] Optionally, T-shaped grooves are provided on both sides of the marker, one end of the T-shaped plate is slidably fitted inside the T-shaped groove, a first spring is fixedly fitted between one side of the T-shaped plate and the inner sidewall of the T-shaped groove, and a driving block is fixedly fitted to one side of the T-shaped plate.

[0011] Optionally, one end of the T-shaped plate is provided with a guide hole, and the guide rod is slidably fitted inside the guide hole.

[0012] Optionally, a fixing plate is fixedly fitted to one end of the guide rod, and a second spring is fixedly fitted between one side of the fixing plate and one side of the T-shaped plate, the second spring being sleeved around the periphery of the guide rod.

[0013] Optionally, a stabilizing base is fixedly fitted to the bottom of the marker, a fixing block is fixedly fitted to one side of the marker, and the upper end of the pull rope is fixedly fitted to the bottom of the fixing block.

[0014] Optionally, a support column is fixedly fitted on the upper side of the carrier vehicle, a guide groove is provided on one side of the support column, a first servo motor is fixedly fitted inside the guide groove, and a threaded rod is fixedly fitted at the output end of the first servo motor.

[0015] Optionally, one end of the L-shaped plate is slidably fitted inside the guide groove, and a threaded hole is provided on one side of the L-shaped plate, the threaded hole being threadedly fitted to the threaded rod.

[0016] Optionally, a second servo motor is fixedly fitted to one side of the L-shaped plate, a rotating rod is fixedly fitted to the output end of the second servo motor, a U-shaped plate is fixedly fitted to one end of the rotating rod, and one end of the laser rangefinder is fixedly fitted to one end of the U-shaped plate.

[0017] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art. Of course, any product implementing this utility model does not necessarily need to achieve all of the following advantages at the same time:

[0018] The curved plate is designed to slide in the direction of the pull rope under the action of the guide rod, and the pull rope is positioned on one side of the marker by the inner wall of the curved plate, which reduces the problem of the plumb bob swaying when the marker moves, making the marker movement process more convenient.

[0019] The guide hole is designed to allow the guide rod to slide inside the guide hole under the action of the fixed plate, and the guide hole guides the sliding direction of the guide rod, reducing the problem of tilting during sliding and improving the stability of the guide rod during sliding.

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0021] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0022] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of a carrier vehicle structure according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of a benchmark structure according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of a T-shaped plate structure according to an embodiment of the present invention.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] Carrier 100, support column 101, guide groove 102, threaded rod 103, L-shaped plate 104, threaded hole 105, rotating rod 106, U-shaped plate 107, laser rangefinder 108, marker 200, stabilizing seat 201, fixing block 202, pull rope 203, plumb bob 204, T-slot 205, first spring 206, T-shaped plate 207, driving block 208, guide hole 209, guide rod 210, arc plate 211, fixing plate 212, second spring 213.

[0028] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings.

[0030] Please see Figure 1-4 As shown, this embodiment provides an auxiliary ranging device for tunnel advance prediction, including a carrier vehicle 100, an L-shaped plate 104 that is slidably fitted on the upper side of the carrier vehicle 100, and a laser ranging component 108 that is rotatably fitted at one end of the L-shaped plate 104.

[0031] A marker 200 is located on one side of the carrier vehicle 100. A pull rope 203 is fixedly fitted on one side of the marker 200. A plumb bob 204 is fixedly fitted at the lower end of the pull rope 203. T-shaped plates 207 are elastically and slidably fitted on both sides of the marker 200. A guide rod 210 is elastically and slidably fitted at one end of the T-shaped plate 207. An arc-shaped plate 211 is fixedly fitted at one end of the guide rod 210. The inner sidewall of the arc-shaped plate 211 is fitted with the pull rope 203.

[0032] Working principle:

[0033] First, the marker 200 is placed inside the tunnel. Then, the guide rod 210 is slid, and one end of the guide rod 210 drives the inner wall of the arc plate 211 to release the positioning of the pull rope 203. The vertical direction of the marker 200 is tested by the plumb bob 204, and the marker 200 is placed in a vertical position. Then, the carrier vehicle 100 is moved, and the distance measurement of the tunnel is performed by the laser rangefinder 108, thereby completing the distance measurement of the tunnel.

[0034] The arc-shaped plate 211 is designed to slide towards the pull rope 203 under the action of the guide rod 210, and the pull rope 203 is positioned on one side of the marker 200 through the inner wall of the arc-shaped plate 211, which reduces the problem of the plumb bob 204 swaying when the marker 200 moves, making the movement of the marker 200 more convenient.

[0035] To make the sliding process of the guide rod 210 on one side of the T-shaped plate 207 more stable in this embodiment, the following improvements are made: Figure 1-4As shown, in this embodiment, T-shaped grooves 205 are provided on both sides of the marker 200. One end of the T-shaped plate 207 is slidably fitted inside the T-shaped groove 205. A first spring 206 is fixedly fitted between one side of the T-shaped plate 207 and the inner wall of the T-shaped groove 205. A driving block 208 is fixedly fitted to one side of the T-shaped plate 207. A guide hole 209 is provided at one end of the T-shaped plate 207. A guide rod 210 is slidably fitted inside the guide hole 209. A fixing plate 212 is fixedly fitted to one end of the guide rod 210. A second spring 213 is fixedly fitted between one side of the fixing plate 212 and one side of the T-shaped plate 207. The second spring 213 is sleeved around the periphery of the guide rod 210. A stabilizing seat 201 is fixedly fitted to the bottom of the marker 200. A fixing block 20 is fixedly fitted to one side of the marker 200. 2. The upper end of the pull rope 203 is fixedly fitted to the bottom of the fixing block 202. A support column 101 is fixedly fitted to the upper side of the carrier vehicle 100. A guide groove 102 is opened on one side of the support column 101. A first servo motor is fixedly fitted inside the guide groove 102. A threaded rod 103 is fixedly fitted to the output end of the first servo motor. One end of the L-shaped plate 104 is slidably fitted inside the guide groove 102. A threaded hole 105 is opened on one side of the L-shaped plate 104. The threaded hole 105 is threadedly fitted to the threaded rod 103. A second servo motor is fixedly fitted to one side of the L-shaped plate 104. A rotating rod 106 is fixedly fitted to the output end of the second servo motor. A U-shaped plate 107 is fixedly fitted to one end of the rotating rod 106. One end of the laser rangefinder 108 is fixedly fitted to one end of the U-shaped plate 107.

[0036] In this embodiment, the fixed plate 212 is first slidable. The fixed plate 212 drives the guide rod 210 to slide inside the guide hole 209 and stretch the second spring 213. The guide rod 210 drives the arc plate 211 to slide. Then, the pull rope 203 is placed between the two arc plates 211. Then, the fixed plate 212 is released. The fixed plate 212 returns to its original position under the elastic action of the second spring 213. The fixed plate 212, through the guide rod 210, drives the inner wall of the arc plate 211 to position the pull rope 203, thereby completing the fixation of the pull rope 203.

[0037] The guide hole 209 is provided so that the guide rod 210 slides inside the guide hole 209 under the action of the fixed plate 212, and the guide hole 209 guides the sliding direction of the guide rod 210, reducing the problem of tilting of the guide rod 210 during sliding and improving the stability of the guide rod 210 during sliding.

[0038] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. An auxiliary ranging device for tunnel advance prediction, characterized in that, include: The carrier vehicle (100) has an L-shaped plate (104) slidably fitted on its upper side, and a laser rangefinder (108) is rotatably fitted at one end of the L-shaped plate (104). A marker (200) is located on one side of the carrier vehicle (100). A pull rope (203) is fixedly fitted on one side of the marker (200). A plumb bob (204) is fixedly fitted at the lower end of the pull rope (203). T-shaped plates (207) are elastically and slidably fitted on both sides of the marker (200). A guide rod (210) is elastically and slidably fitted at one end of the T-shaped plate (207). An arc-shaped plate (211) is fixedly fitted at one end of the guide rod (210). The inner sidewall of the arc-shaped plate (211) is fitted with the pull rope (203).

2. The auxiliary ranging device for tunnel advance prediction according to claim 1, characterized in that, The marker (200) has T-shaped grooves (205) on both sides. One end of the T-shaped plate (207) is slidably fitted inside the T-shaped groove (205). A first spring (206) is fixedly fitted between one side of the T-shaped plate (207) and the inner wall of the T-shaped groove (205). A driving block (208) is fixedly fitted to one side of the T-shaped plate (207).

3. The auxiliary ranging device for tunnel advance prediction according to claim 1, characterized in that, One end of the T-shaped plate (207) is provided with a guide hole (209), and the guide rod (210) is slidably fitted inside the guide hole (209).

4. The auxiliary ranging device for tunnel advance prediction according to claim 1, characterized in that, One end of the guide rod (210) is fixedly fitted with a fixing plate (212), and a second spring (213) is fixedly fitted between one side of the fixing plate (212) and one side of the T-shaped plate (207). The second spring (213) is sleeved on the periphery of the guide rod (210).

5. The auxiliary ranging device for tunnel advance prediction according to claim 1, characterized in that, The bottom of the marker (200) is fixedly fitted with a stabilizing base (201), and a fixing block (202) is fixedly fitted on one side of the marker (200). The upper end of the pull rope (203) is fixedly fitted to the bottom of the fixing block (202).

6. The auxiliary ranging device for tunnel advance prediction according to claim 1, characterized in that, The upper side of the carrier vehicle (100) is fixedly fitted with a support column (101), and a guide groove (102) is provided on one side of the support column (101). A first servo motor is fixedly fitted inside the guide groove (102), and a threaded rod (103) is fixedly fitted at the output end of the first servo motor.

7. The auxiliary ranging device for tunnel advance prediction according to claim 6, characterized in that, One end of the L-shaped plate (104) is slidably fitted inside the guide groove (102), and a threaded hole (105) is provided on one side of the L-shaped plate (104), which is threadedly fitted with the threaded rod (103).

8. The auxiliary ranging device for tunnel advance prediction according to claim 1, characterized in that, A second servo motor is fixedly fitted to one side of the L-shaped plate (104), and a rotating rod (106) is fixedly fitted to the output end of the second servo motor. A U-shaped plate (107) is fixedly fitted to one end of the rotating rod (106), and one end of the laser rangefinder (108) is fixedly fitted to one end of the U-shaped plate (107).

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