Tunnel blast hole measuring device

Abstract

The utility model relates to the technical field of tunnel detection, in particular to a tunnel blast hole measuring device. The device comprises a mounting platform, a coordinate measuring module and a blast hole shape measuring module, the blast hole shape measuring module comprises a measuring main body and a target, and the measuring main body is used for extending into a tunnel blast hole to measure the depth of the tunnel blast hole; the coordinate measuring module comprises a driving assembly and a laser orientation instrument, the laser orientation instrument is connected with the output end of the driving assembly, the driving assembly drives the laser orientation instrument to rotate so that laser emitted by the laser orientation instrument can be aligned with the target, and the laser orientation instrument is used for measuring the distance between the coordinate measuring module and the blast hole form measuring module. According to the utility model, the depth of the tunnel blast hole and the distance between the coordinate measuring module and the blast hole form measuring module can be measured, so that the three-dimensional form coordinate of the tunnel blast hole can be obtained, the operation is simple, the three-dimensional form of the tunnel blast hole can be accurately measured, and the construction quality of tunnel blasting can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel detection, in particular to a tunnel blasthole measuring device. Background Art

[0002] Due to its strong adaptability and low cost, the drilling and blasting method is often used in the excavation of mountain tunnels. During the drilling and blasting process, parameters such as the depth, angle, spacing and aperture of the blastholes have an important impact on the subsequent charging, thereby affecting factors such as over-excavation and cycle footage, and further affecting the project cost, project progress and project quality. Therefore, before blasting, it is necessary to detect the three-dimensional morphology of the blastholes to determine the relationship between the spacing at the bottom of the blastholes and the minimum resistance line of the rock. If the spacing is much larger than the minimum resistance line, it may lead to incomplete blasting and the appearance of large rocks; if the spacing is much smaller than the minimum resistance line, blasting materials may be wasted.

[0003] At present, the detection of blasthole positions mainly relies on total stations to determine the positions, but the positions can only be determined before the blastholes are drilled. For the shape of a single blasthole, a rock drilling rig is mainly used for drilling measurement, but the position of the blasthole cannot be determined, and there is a lack of blasthole three-dimensional shape measurement equipment. The rock drilling rig cannot determine the position and shape of the blasthole, resulting in the blasthole parameters being inconsistent with the design, so that the tunnel blasting quality often cannot achieve the ideal effect. Therefore, it is urgent to develop an instrument that can measure the three-dimensional shape of the entire blasthole to assist in tunnel drilling construction.

[0004] The current technology relies on total stations to determine the location of blastholes, which can only be done before the blastholes are drilled, which limits the real-time monitoring of the drilled blastholes. Secondly, the determination of the shape of a single blasthole mainly relies on drilling measurements by a rock drilling rig, but this method cannot accurately determine the location of the blasthole and lacks a special three-dimensional shape measurement device. In addition, traditional rock drilling rigs are unable to measure the location and shape of blastholes, resulting in the inability to accurately monitor the blastholes during construction.

[0005] Therefore, it is necessary to provide a new tunnel blasthole measurement device to solve the above technical problems. Utility Model Content

[0006] The main purpose of the utility model is to provide a tunnel blasthole measuring device, aiming to solve the problems of low measurement accuracy and inability to measure blasthole coordinates in real time in the existing tunnel blasthole measuring device.

[0007] To achieve the above-mentioned purpose, the utility model proposes a tunnel blasthole measuring device, which includes a mounting platform, a coordinate measuring module and a blasthole morphology measuring module, wherein the blasthole morphology measuring module includes a measuring body and a target, wherein the measuring body is used to extend into the tunnel blasthole to measure the depth of the tunnel blasthole, and the target is arranged on the measuring body; the coordinate measuring module includes a driving component and a laser pointer, wherein the driving component is arranged on the mounting platform, the laser pointer is arranged facing the tunnel blasthole, the laser pointer is connected to the output end of the driving component, the driving component drives the laser pointer to rotate so that the laser emitted by the laser pointer is aimed at the target, and the laser pointer is used to measure the distance between the coordinate measuring module and the blasthole morphology measuring module.

[0008] Optionally, the measuring body includes a mounting sleeve, a top cover and a measuring assembly, the mounting sleeve is arranged in a tunnel blasthole, and a portion of the mounting sleeve is exposed from the tunnel blasthole, and the top cover is detachably arranged at one end of the mounting sleeve close to the bottom wall of the tunnel blasthole; the measuring assembly includes a reset mechanism, a measuring line and a counter, the reset mechanism and the counter are arranged at the portion of the mounting sleeve exposed from the tunnel blasthole, one end of the measuring line is connected to the output end of the reset mechanism, and the other end is connected to the top cover; the blasthole morphology measuring module also includes an ejector, the ejector is used to extend into the mounting sleeve to push the top cover out of the mounting sleeve, and the top cover pulls the measuring line out until the top cover abuts against the bottom wall of the tunnel blasthole, and the counter is used to measure the extended length of the measuring line.

[0009] Optionally, the top cover includes a docking portion, a tapered portion and a mounting portion connected between the docking portion and the tapered portion, the docking portion includes a first arc-shaped clamping plate, a second arc-shaped clamping plate and a third arc-shaped clamping plate radially spaced in a direction close to the center of the mounting portion, the first arc-shaped clamping plate is connected to the measuring line, the barrel wall of the mounting sleeve is arranged between the first arc-shaped clamping plate and the second arc-shaped clamping plate, a gap matching the profile of the ejection piece is formed between the second arc-shaped clamping plate and the third arc-shaped clamping plate, and the ejection piece extends into the gap to push the top cover to move; the tapered portion is used to push away the gravel in the tunnel blasthole.

[0010] Optionally, the reset mechanism includes a shell, a rotating shaft and a reset member, the shell is arranged on the mounting sleeve, the rotating shaft is rotatably arranged in the shell, one end of the measuring line is arranged around the outer circumference of the rotating shaft, and the other end extends out of the shell and is connected to the top cover, and the reset member is connected between the rotating shaft and the shell.

[0011] Optionally, the coordinate measurement module also includes a visual component, which includes a first fixed-focus camera and a second fixed-focus camera arranged on the laser pointer, the first fixed-focus camera is used to identify the position of the blasthole morphology measurement module, and the second fixed-focus camera is used to identify the position of the target.

[0012] Optionally, the blasthole morphology determination module also includes a first sensor, a second sensor and a single-chip microcomputer chip, the first sensor is arranged at the part of the mounting sleeve that exposes the tunnel blasthole, and the first sensor is used to measure the azimuth and inclination of the blasthole morphology determination module; the second sensor is arranged in the mounting part of the top cover, and the second sensor is used to measure the azimuth and inclination when the top cover moves; the single-chip microcomputer chip is arranged on the mounting sleeve, and the single-chip microcomputer chip is electrically connected to the counter, the first sensor and the second sensor, respectively, and the single-chip microcomputer chip is used to receive and process the data transmitted by the counter, the first sensor and the second sensor.

[0013] Optionally, the coordinate measurement module also includes an edge server and a third sensor, the edge server is arranged on the mounting platform, and the edge server is electrically connected to the visual component, the single-chip microcomputer chip and the third sensor respectively; the third sensor is arranged on the laser pointer, and the third sensor is used to measure the inclination and azimuth of the laser pointer; the driving component includes a rotating driving component and a servo, the rotating driving component is connected to the edge server, and the rotating driving component is connected to the laser pointer through the servo.

[0014] Optionally, there are multiple coordinate measurement modules and blasthole morphology measurement modules, and the multiple coordinate measurement modules are evenly arranged on the installation platform, and one coordinate measurement module corresponds to one blasthole morphology measurement module, and one blasthole morphology measurement module corresponds to one tunnel blasthole.

[0015] In the technical solution of the utility model, a measuring body is extended into a tunnel blasthole to measure the depth of the tunnel blasthole, and a laser pointer is driven to rotate by a driving component so that the laser emitted by the laser pointer is aimed at a target, thereby measuring the distance between a coordinate measuring module and a blasthole shape measuring module, thereby combining the installation position coordinates of the coordinate measuring module and the installation size of the target to obtain the three-dimensional shape coordinates of the tunnel blasthole. The utility model is simple to operate and can accurately measure the three-dimensional shape of the tunnel blasthole, which is beneficial to ensuring the construction quality of tunnel blasting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of a tunnel blasthole measuring device in an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the installation of the blasthole morphology determination module in the embodiment of the utility model;

[0019] Figure 3 This is a structural schematic diagram of a blasthole morphology determination module in an embodiment of the utility model;

[0020] Figure 4 It is a structural schematic diagram of another perspective of the blasthole morphology determination module in the embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the top cover in the embodiment of the utility model;

[0022] Figure 6 It is a structural schematic diagram of a coordinate measurement module in an embodiment of the utility model.

[0023] Description of Figure Numbers:

[0024] 1 Installation platform, 2 Coordinate measurement module, 2.1 Drive assembly, 2.11 Rotary drive member, 2.12 Servo, 2.2 Laser pointer, 2.3 Visual assembly, 2.4 Third sensor, 3 Blast hole morphology measurement module, 3.1 Measurement body, 3.11 Installation sleeve, 3.12 Top cover, 3.121 Docking part, 3.1211 First arc clamping plate, 3.1212 Second arc clamping plate, 3.1213 Third arc clamping plate, 3.122 Installation part, 3.123 Conical part, 3.13 Measurement assembly, 3.131 Reset mechanism, 3.1311 Shell, 3.1312 Rotating shaft, 3.1313 Reset member, 3.132 Measuring line, 3.2 Target, 3.3 Ejector, 3.4 First sensor, 4 Tunnel blast hole.

[0025] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0027] The utility model provides a tunnel blasthole measuring device, aiming to solve the problems of low measuring accuracy and inability to measure blasthole coordinates in real time in the existing tunnel blasthole measuring device.

[0028] like Figures 1 to 6 As shown, the tunnel blasthole 4 measuring device includes a mounting platform 1, a coordinate measuring module 2 and a blasthole morphology measuring module 3, the blasthole morphology measuring module 3 includes a measuring body 3.1 and a target 3.2, the measuring body 3.1 is used to extend into the tunnel blasthole 4 to measure the depth of the tunnel blasthole 4, and the target 3.2 is arranged on the measuring body; the coordinate measuring module 2 includes a driving component 2.1 and a laser pointer 2.2, the driving component 2.1 is arranged on the mounting platform 1, the laser pointer 2.2 is arranged facing the tunnel blasthole 4, the laser pointer 2.2 is connected to the output end of the driving component 2.1, the driving component 2.1 drives the laser pointer 2.2 to rotate so that the laser emitted by the laser pointer 2.2 is aimed at the target 3.2, and the laser pointer 2.2 is used to measure the distance between the coordinate measuring module 2 and the blasthole morphology measuring module 3. In actual operation, the operator extends the measuring body 3.1 into the tunnel blasthole 4 to measure the depth of the tunnel blasthole 4, and drives the laser pointer 2.2 to rotate through the driving component 2.1 to aim the laser emitted by the laser pointer 2.2 at the target 3.2, thereby measuring the distance between the coordinate measuring module 2 and the blasthole shape measuring module 3, and thus combining the installation position coordinates of the coordinate measuring module 2 and the installation size of the target 3.2 to obtain the three-dimensional shape coordinates of the tunnel blasthole 4. The utility model is simple to operate and can accurately measure the three-dimensional shape of the tunnel blasthole 4, which is beneficial to ensuring the construction quality of tunnel blasting.

[0029] Based on the above embodiment, the measuring body 3.1 includes a mounting sleeve 3.11, a top cover 3.12 and a measuring assembly 3.13. The mounting sleeve 3.11 is arranged in the tunnel blasthole 4, and a portion of the mounting sleeve 3.11 is exposed in the tunnel blasthole 4. The top cover 3.12 is detachably arranged at one end of the mounting sleeve 3.11 close to the bottom wall of the tunnel blasthole 4. The measuring assembly 3.13 includes a reset mechanism 3.131, a measuring line 3.132 and a counter. The reset mechanism 3.131 and the counter are arranged in the mounting sleeve 3. 11 exposes the portion of the tunnel blasthole 4, one end of the measuring line 3.132 is connected to the output end of the reset mechanism 3.131, and the other end is connected to the top cover 3.12; the blasthole morphology determination module 3 also includes an ejector 3.3, which is used to extend into the mounting sleeve 3.11 to push the top cover 3.12 out of the mounting sleeve 3.11, and the top cover 3.12 pulls the measuring line 3.132 out until the top cover 3.12 abuts against the bottom wall of the tunnel blasthole 4, and the counter is used to measure the extended length of the measuring line 3.132. The ejector 3.3 extends into the installation sleeve 3.11 and pushes the top cover 3.12 to separate from the installation sleeve 3.11. The top cover 3.12 and the measuring line 3.132 are pulled out to pull the measuring line 3.132 out of the reset mechanism 3.131, and the ejector 3.3 further drives the top cover 3.12 to move in a direction away from the installation sleeve 3.11 until the top cover 3.12 abuts against the bottom wall of the tunnel blasthole 4. At this time, the counter measures the length of the measuring line 3.132 extending out of the reset mechanism 3.131, thereby obtaining the depth of the tunnel blasthole 4. After the measurement is completed, the ejector 3.3 withdraws from the installation sleeve 3.11, and at the same time, the reset mechanism 3.131 pulls the top cover 3.12 through the measuring line 3.132 to move in a direction close to the installation sleeve 3.11 until the top cover 3.12 abuts against the installation sleeve 3.11. The operation is simple and the accuracy is high. Preferably, the diameter of the installation sleeve 3.11 is slightly smaller than the diameter of the tunnel blast hole 4, and the installation sleeve 3.11 and the ejector 3.3 are both PVC pipes.

[0030] Further, in conjunction with the top cover 3.12, which includes a docking portion 3.121, a tapered portion 3.123, and a mounting portion 3.122 connected between the docking portion 3.121 and the tapered portion 3.123, the docking portion 3.121 includes a first arc-shaped clamping plate 3.1211, a second arc-shaped clamping plate 3.1212, and a third arc-shaped clamping plate 3.1213 radially spaced in a direction close to the center of the mounting portion 3.122, the first arc-shaped clamping plate 3.1211, a second arc-shaped clamping plate 3.1212, and a third arc-shaped clamping plate 3.1213. 1211 is connected with the measuring line 3.132, the wall of the mounting sleeve 3.11 is arranged between the first arc clamping plate 3.1211 and the second arc clamping plate 3.1212, a gap matching the profile of the ejector 3.3 is formed between the second arc clamping plate 3.1211 and the third arc clamping plate 3.1213, and the ejector 3.3 extends into the gap to push the top cover 3.12 to move; the conical part 3.123 is used to push away the gravel in the tunnel blasthole 4. The top cover 3.12 is arranged on the mounting sleeve 3.11 through the docking portion 3.121, and the first arc-shaped clamping plate 3.1211 and the second arc-shaped clamping plate 3.1212 of the docking portion 3.121 are respectively arranged on the inner and outer sides of the mounting sleeve 3.11, and a gap matching the contour of the ejector 3.3 is formed between the first arc-shaped clamping plate 3.1211 and the second arc-shaped clamping plate 3.1212, and the size of the gap is slightly larger than the wall thickness of the ejector 3.3. The ejector 3.3 extends into the mounting sleeve 3.11 and is stuck in the gap between the first arc-shaped clamping plate 3.1211 and the second arc-shaped clamping plate 3.1212 to prevent the top cover 3.12 from falling off during movement.

[0031] Furthermore, the reset mechanism 3.131 includes a shell 3.1311, a rotating shaft 3.1312 and a reset member 3.1313, the shell 3.1311 is arranged on the mounting sleeve 3.11, the rotating shaft 3.1312 is rotatably arranged in the shell 3.1311, one end of the measuring line 3.132 is wound around the outer circumference of the rotating shaft 3.1312, and the other end extends out of the shell 3.1311 and is connected to the top cover 3.12, and the reset member 3.1313 is connected between the rotating shaft 3.1312 and the shell 3.1311. When the top cover 3.12 pulls the measuring line 3.132 out of the housing 3.1311, the measuring line 3.132 pulls the reset member 3.1313 to deform, and when the ejection member 3.3 exits the installation sleeve 3.11, the top cover 3.12 loses the thrust of the ejection member 3.3, and the reset member 3.1313 pulls the top cover 3.12 back to the initial position through the measuring line 3.132, thereby realizing the reset of the top cover 3.12, so as to facilitate the next measurement operation. Preferably, the reset member 3.1313 is a coil spring.

[0032] In one embodiment, the coordinate measurement module 2 further includes a visual component 2.3, which includes a first fixed-focus camera and a second fixed-focus camera disposed on the laser pointer 2.2, wherein the first fixed-focus camera is used to identify the position of the blasthole morphology measurement module 3, and the second fixed-focus camera is used to identify the position of the target 3.2. The laser pointer 2.2 is positioned at the position of the target 3.2 through the first fixed-focus camera and the second fixed-focus camera, so that the laser of the laser pointer 2.2 is aligned with the center of the target 3.2, thereby accurately measuring the distance between the coordinate measurement module 2 and the blasthole morphology measurement module 3.

[0033] Specifically, the blasthole morphology determination module 3 further includes a first sensor 3.4, a second sensor and a single-chip microcomputer chip. The first sensor 3.4 is arranged at the portion of the mounting sleeve 3.11 that exposes the tunnel blasthole 4. The first sensor 3.4 is used to measure the azimuth and inclination of the blasthole morphology determination module 3. The second sensor is arranged in the mounting portion 3.122 of the top cover 3.12. The second sensor is used to measure the azimuth and inclination when the top cover 3.12 moves. The single-chip microcomputer chip is arranged on the mounting sleeve 3.11. The single-chip microcomputer chip is electrically connected to the counter, the first sensor 3.4 and the second sensor respectively. The single-chip microcomputer chip is used to receive and process the data transmitted by the counter, the first sensor 3.4 and the second sensor. The counter, the first sensor 3.4 and the second sensor transmit the measured data to the single-chip microcomputer chip respectively. After the calculation and processing of the single-chip microcomputer chip, the depth of the tunnel blasthole 4, the azimuth and inclination of the blasthole morphology determination module 3 and the azimuth and inclination of the coordinate determination module 2 are obtained respectively.

[0034] In addition, the coordinate measurement module 2 also includes an edge server and a third sensor 2.4. The edge server is arranged on the installation platform 1, and the edge server is electrically connected to the visual component 2.3, the single-chip microcomputer chip and the third sensor 2.4 respectively; the third sensor 2.4 is arranged on the laser pointer 2.2, and the third sensor 2.4 is used to measure the inclination and azimuth of the laser pointer 2.2; the driving component 2.1 includes a rotating driving component 2.11 and a servo 2.12, the rotating driving component 2.11 is connected to the second control component, and the rotating driving component 2.11 is connected to the laser pointer 2.2 through the servo 2.12. The visual component 2.3 and the third sensor 2.4 transmit data to the edge server respectively, so that the edge server can calculate the rotation angle of the rotating drive member 2.11 and the rotation angle of the steering gear 2.12, and control the rotating drive member 2.11 and the steering gear 2.12 to rotate at the set angle so that the laser is aimed at the center point of the target 3.2, so as to accurately measure the distance between the coordinate measurement module 2 and the blasthole shape measurement module 3. The single-chip microcomputer chip transmits the processed data to the edge server, and calculates the three-dimensional shape of the tunnel blasthole 4 through the coordinates of the coordinate measurement module 2, wherein the coordinates of the coordinate measurement module 2 can be obtained by measuring with a total station. In actual operation, there is no need to measure the coordinates of the coordinate measurement module 2 multiple times. It is only necessary to move the position of the installation platform 1 to measure the tunnel blastholes 4 at different positions.

[0035] Preferably, the first sensor 3.4, the second sensor and the third sensor 2.4 are all electronic compass sensors.

[0036] In addition, there are multiple coordinate measurement modules 2 and blasthole morphology measurement modules 3, and multiple coordinate measurement modules 2 are evenly arranged on the installation platform 1, and one coordinate measurement module 2 corresponds to one blasthole morphology measurement module 3, and one blasthole morphology measurement module 3 corresponds to one tunnel blasthole 4. In actual operation, the tunnel face is divided into multiple areas, each area is respectively provided with a tunnel blasthole 4, and one tunnel blasthole 4 corresponds to one blasthole morphology measurement module 3, and one blasthole morphology measurement module 3 corresponds to one coordinate measurement module 2, so as to simultaneously measure and obtain the three-dimensional morphology of multiple full-face blastholes, thereby improving the measurement efficiency.

[0037] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A tunnel blasthole measurement device, characterized in that: The tunnel blasthole measurement device comprises an installation platform (1), a coordinate measurement module (2) and a blasthole shape measurement module (3); the blasthole shape measurement module (3) comprises a measurement body (3.1) and a target (3.2); the measurement body (3.1) is used to extend into a tunnel blasthole (4) to measure the depth of the tunnel blasthole (4); the target (3.2) is arranged on the measurement body (3.1); the coordinate measurement module (2) comprises a drive component (2.1) and a laser pointer (2.2); the drive component ( 2.1) is arranged on the installation platform (1), the laser pointer (2.2) is arranged facing the tunnel blasthole (4), the laser pointer (2.2) is connected to the output end of the driving component (2.1), the driving component (2.1) drives the laser pointer (2.2) to rotate so that the laser emitted by the laser pointer (2.2) is aimed at the target (3.2), and the laser pointer (2.2) is used to measure the distance between the coordinate measurement module (2) and the blasthole shape measurement module (3).

2. The tunnel blasthole measurement device according to claim 1, characterized in that: The measuring body (3.1) comprises a mounting sleeve (3.11), a top cover (3.12) and a measuring assembly (3.13); the mounting sleeve (3.11) is arranged in a tunnel blasthole (4), and a portion of the mounting sleeve (3.11) is exposed from the tunnel blasthole (4); the top cover (3.12) is detachably arranged at one end of the mounting sleeve (3.11) close to the bottom wall of the tunnel blasthole (4); the measuring assembly (3.13) comprises a reset mechanism (3.131), a measuring line (3.132) and a counter; the reset mechanism (3.131) and the counter are arranged at the end of the mounting sleeve (3.11) exposed from the tunnel blasthole (4). The blasthole (4) is a portion of the tunnel blasthole (4), one end of the measuring line (3.132) is connected to the output end of the reset mechanism (3.131), and the other end is connected to the top cover (3.12); the blasthole morphology determination module (3) also includes an ejector (3.3), the ejector (3.3) is used to extend into the mounting sleeve (3.11) to push the top cover (3.12) out of the mounting sleeve (3.11), and the top cover (3.12) pulls the measuring line (3.132) out until the top cover (3.12) abuts against the bottom wall of the tunnel blasthole (4), and the counter is used to measure the extended length of the measuring line (3.132).

3. The tunnel blasthole measurement device according to claim 2, characterized in that: The top cover (3.12) comprises a docking portion (3.121), a conical portion (3.123) and a mounting portion (3.122) connected between the docking portion (3.121) and the conical portion (3.123); the docking portion (3.121) comprises a first arc-shaped clamping plate (3.1211), a second arc-shaped clamping plate (3.1212) and a third arc-shaped clamping plate (3.1213) radially spaced in a direction close to the center of the mounting portion (3.122); the first arc-shaped clamping plate (3.1211) and the measuring portion (3.123) are connected to each other. The mounting sleeve (3.11) is connected by a line (3.132), the wall of the mounting sleeve (3.11) is arranged between the first arc-shaped clamping plate (3.1211) and the second arc-shaped clamping plate (3.1212), a gap matching the profile of the ejector (3.3) is formed between the second arc-shaped clamping plate (3.1212) and the third arc-shaped clamping plate (3.1213), the ejector (3.3) extends into the gap to push the top cover (3.12) to move; the conical portion (3.123) is used to push away the gravel in the tunnel blast hole (4).

4. The tunnel blasthole measurement device according to claim 3, characterized in that: The reset mechanism (3.131) comprises a housing (3.1311), a rotating shaft (3.1312) and a reset member (3.1313); the housing (3.1311) is arranged on the mounting sleeve (3.11); the rotating shaft (3.1312) is rotatably arranged in the housing (3.1311); one end of the measuring line (3.132) is arranged around the outer circumference of the rotating shaft (3.1312); the other end extends out of the housing (3.1311) and is connected to the top cover (3.12); the reset member (3.1313) is connected between the rotating shaft (3.1312) and the housing (3.1311).

5. The tunnel blasthole measurement device according to claim 4, characterized in that: The coordinate determination module (2) further comprises a visual component (2.3), wherein the visual component (2.3) comprises a first fixed-focus camera and a second fixed-focus camera arranged on the laser pointer (2.2), wherein the first fixed-focus camera is used to identify the position of the blasthole morphology determination module (3), and the second fixed-focus camera is used to identify the position of the target (3.2).

6. The tunnel blasthole measurement device according to claim 5, characterized in that: The blasthole morphology determination module (3) further comprises a first sensor (3.4), a second sensor and a single-chip microcomputer chip, wherein the first sensor (3.4) is arranged at a portion of the mounting sleeve (3.11) that exposes the tunnel blasthole (4), and the first sensor (3.4) is used to measure the azimuth and inclination of the blasthole morphology determination module (3); the second sensor is arranged in the mounting portion (3.122) of the top cover (3.12), and the second sensor is used to measure the azimuth and inclination when the top cover (3.12) moves; the single-chip microcomputer chip is arranged on the mounting sleeve (3.11), and the single-chip microcomputer chip is electrically connected to the counter, the first sensor (3.4) and the second sensor respectively, and the single-chip microcomputer chip is used to receive and process data transmitted by the counter, the first sensor (3.4) and the second sensor.

7. The tunnel blasthole measurement device according to claim 6, characterized in that: The coordinate measurement module (2) further comprises an edge server and a third sensor (2.4); the edge server is arranged on the installation platform (1), and is electrically connected to the visual component (2.3), the single-chip microcomputer chip and the third sensor (2.4) respectively; the third sensor (2.4) is arranged on the laser pointer (2.2), and is used to measure the inclination and azimuth of the laser pointer (2.2); the drive component (2.1) comprises a rotary drive component (2.11) and a steering gear (2.12); the rotary drive component (2.11) is connected to the edge server, and the rotary drive component (2.11) is connected to the laser pointer (2.2) via the steering gear (2.12).

8. The tunnel blasthole measurement device according to any one of claims 1 to 5, characterized in that: The number of the coordinate measurement modules (2) and the blasthole shape measurement modules (3) is plural, and the plural coordinate measurement modules (2) are evenly arranged on the installation platform (1), and one coordinate measurement module (2) is correspondingly arranged with one blasthole shape measurement module (3), and one blasthole shape measurement module (3) is correspondingly arranged with one tunnel blasthole (4).

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