Blasting point positioning device for tunnel

By using a blasting point positioning device that moves within the tunnel, and utilizing a lifting mechanism, laser rangefinder, and camera, the complexity and error problems of traditional tunnel blasting point positioning have been solved, achieving precise positioning and equipment protection.

CN223841072UActive Publication Date: 2026-01-27HENAN CHANGCHENG ENG CONSTR CONSULTING CO LTD
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Patent Information

Application Number
CN202520135212.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2026-01-27
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

Traditional methods for locating tunnel blasting points suffer from problems such as complex manual operation, large measurement errors, and difficulty in adapting to irregular or slope-varying tunnel environments.

Method used

A blasting point positioning device was designed, comprising a mobile vehicle, a lifting mechanism, a laser rangefinder, and a camera mechanism. The mobile vehicle moves within the tunnel, the lifting mechanism adjusts the height of the laser rangefinder and the camera mechanism, and an automated control system is used to achieve precise positioning.

Benefits of technology

It enables precise positioning of blasting points in complex tunnel environments, reducing manual operations, minimizing measurement errors, protecting equipment, extending its service life, and reducing worker risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of tunnel blasting point positioning, in particular to a tunnel blasting point positioning device which comprises a moving vehicle body, a mounting box is arranged at the top end of the moving vehicle body, a lifting groove is formed in the top end of the mounting box, a mounting groove is formed in the bottom end of the lifting groove, a lifting box is arranged on the lifting groove, and the lifting box is arranged on the mounting groove. A mounting groove is formed in one side of the lifting box, a lifting mechanism and a guide mechanism are arranged between the mounting groove and the lifting box, detection mechanisms are arranged on the two sides of the lifting box, each detection mechanism comprises a detection groove and an adjusting groove, each detection groove is formed in one side of the lifting box, and a laser range finder and a camera shooting mechanism are arranged on each detection groove. The equipment can be easily moved into a tunnel, the lifting mechanism allows the height of the laser range finder and the height of the camera shooting mechanism to be adjusted according to actual needs, the equipment can adapt to tunnel environments with different shapes, sizes and gradient changes, and accurate positioning of blasting points can be achieved in the complex environment.
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Description

Technical Field

[0001] This utility model relates to the field of blasting point positioning technology in tunnels, specifically to a blasting point positioning device for tunnels. Background Technology

[0002] As is well known, blasting is a key technology in tunnel excavation and construction, playing a vital role in improving construction efficiency and reducing costs. However, traditional methods for blasting point location often have limitations: using traditional surveying tools such as theodolites and levels requires manual on-site operation, which not only increases workload but also easily leads to measurement errors due to the complex environment inside the tunnel (such as narrow space and insufficient light). While some fixed positioning devices can provide a degree of automation, their immovable position makes them difficult to adapt to different heights and angles, especially when dealing with tunnels with irregular shapes or varying slopes. Therefore, it is necessary to propose solutions to this technical problem. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the shortcomings of the existing technology, this utility model provides a blasting point positioning device for tunnels.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a blasting point positioning device for tunnels, comprising a mobile vehicle body, a mounting box at the top of the mobile vehicle body, a lifting groove at the top of the mounting box, a mounting groove at the bottom of the lifting groove, a lifting box on the lifting groove, a lifting mechanism and a guiding mechanism between the mounting groove and the lifting box, detection mechanisms on both sides of the lifting box, the detection mechanism including a detection groove and an adjustment groove, the detection groove being located on one side of the lifting box, the adjustment groove being located at the bottom of the detection groove, a laser rangefinder and a camera mechanism on the detection groove, a drive motor on one side of the adjustment groove, a lead screw at the output end of the drive motor, a sliding block on the lead screw, a threaded hole on the sliding block, the lead screw passing through the threaded hole, a sealing plate between the sliding block and the detection groove, baffles between the two sides of the sealing plate and the adjustment groove, and a locking mechanism between the sliding block and the adjustment groove.

[0007] Furthermore, the present invention is improved in that the locking mechanism includes an iron plate and an electromagnetic lock, the electromagnetic lock is installed at the bottom end of the sliding block, the iron plate is installed at the bottom end of the adjusting groove, and the electromagnetic lock abuts against the iron plate.

[0008] Furthermore, the present invention is improved in that the guiding mechanism includes a guide groove and a guide block, the guide groove is formed on one side of the lifting groove, the guide block is located in the guide groove, and the guide block is connected to the lifting box.

[0009] Furthermore, an improvement of this utility model is that a bearing seat is provided between the lead screw and one side of the adjusting groove.

[0010] Furthermore, the present invention is improved in that both the guide groove and the guide block are T-shaped structures.

[0011] Furthermore, the present invention is improved in that the camera mechanism includes a camera device and a lighting mechanism, both of which are mounted on the detection slot.

[0012] Furthermore, an improvement of this utility model is that the drive motor is a servo motor.

[0013] Furthermore, the present invention is improved by providing an anti-collision plate at the top of the lifting box.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a blasting point positioning device for tunnels, which has the following beneficial effects:

[0016] This blasting point positioning device for tunnels can be easily moved into tunnels via a mobile vehicle. The lifting mechanism allows for adjustment of the height of the laser rangefinder and camera mechanism as needed, adapting to tunnel environments with varying shapes, sizes, and slopes. Utilizing the laser rangefinder and camera mechanism, precise positioning of blasting points can be achieved in complex environments, ensuring that each blast achieves the desired effect, reducing repetitive work and material waste. When not in use, the sealing plate automatically closes to prevent dust, moisture, and other impurities from entering the adjustment groove, effectively protecting precision components such as the laser rangefinder and camera mechanism and extending their service life. The automated control system reduces the need for manual on-site operation and lowers the risk of workers being exposed to hazardous environments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present utility model. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 2 ;

[0019] Figure 3 This is a left half-sectional view of the structure of this utility model;

[0020] Figure 4 This is a frontal half-sectional view of the structure of this utility model.

[0021] In the diagram: 1. Mobile vehicle body; 2. Mounting box; 3. Lifting box; 4. Laser rangefinder; 5. Drive motor; 6. Lead screw; 7. Sliding block; 8. Sealing plate; 9. Baffle; 10. Iron plate; 11. Electromagnetic lock; 12. Guide block; 13. Bearing seat; 14. Camera device; 15. Lighting mechanism; 16. Anti-collision plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4This utility model relates to a blasting point positioning device for tunnels, comprising a mobile vehicle body 1, a mounting box 2 at the top of the mobile vehicle body 1, a lifting groove at the top of the mounting box 2, a mounting groove at the bottom of the lifting groove, a lifting housing 3 on the lifting groove, a lifting mechanism and a guiding mechanism between the mounting groove and the lifting housing 3, detection mechanisms on both sides of the lifting housing 3, each detection mechanism including a detection groove and an adjustment groove, the detection groove being located on one side of the lifting housing 3, the adjustment groove being located at the bottom of the detection groove, a laser rangefinder 4 and a camera mechanism on the detection groove, and the adjustment groove being located on one side of the adjustment groove. A drive motor 5 is provided, and a lead screw 6 is provided at the output end of the drive motor 5. A sliding block 7 is provided on the lead screw 6, and a threaded hole is opened on the sliding block 7. The lead screw 6 passes through the threaded hole. A sealing plate 8 is provided between the sliding block 7 and the detection groove. Baffles 9 are provided between the two sides of the sealing plate 8 and the adjustment groove. A locking mechanism is provided between the sliding block 7 and the adjustment groove. In this embodiment, the structure can be moved by using a mobile vehicle 1. The mobile vehicle 1 is a common mobile trolley device in the prior art, which will not be described in detail in this structure. The height position of the lifting box 3 in the lifting groove is adjusted by using a lifting mechanism. This facilitates adjusting the height of the rangefinder in the detection mechanism. Personnel can freely set the dimensions of the mounting box 2, lifting groove, and installation groove according to their needs, thus adjusting the lifting distance of the lifting box 3 for ease of use. When it is necessary to detect and locate the blast point, the output end of the drive motor 5 is controlled to rotate the lead screw 6. The lead screw 6 passes through the threaded hole of the sliding block 7, allowing the sliding block 7 to move linearly in the adjustment groove, thus achieving linear lateral movement of the sliding block 7. The sliding block 7 drives the sealing plate 8 to move linearly, moving the sealing plate 8 to one side of the detection groove. The sealing plate 8 then drives the baffle 9 to move, preventing dust from entering the adjustment groove through the detection groove. No matter how the sealing plate 8 moves, the baffle 9 on one side will block the gap between the adjustment groove and the detection groove, thus exposing the laser rangefinder 4 and the camera mechanism. The blasting point can be located by using the laser rangefinder 4 and the camera mechanism. The two sides of the lifting box 3 can be used to locate the two sides of the tunnel. When not in use, the output end of the drive motor 5 is controlled to rotate in the opposite direction, thereby moving the sealing plate 8 in the opposite direction. The sealing plate 8 blocks the camera mechanism and the laser rangefinder 4, thereby preventing external dust or impurities from accumulating on the camera mechanism and the laser rangefinder 4, protecting the camera mechanism and the laser rangefinder 4, and facilitating normal use next time.

[0024] In this solution, the locking mechanism includes an iron plate 10 and an electromagnetic lock 11. The electromagnetic lock 11 is installed at the bottom end of the sliding block 7, and the iron plate 10 is installed at the bottom end of the adjusting groove. The electromagnetic lock 11 abuts against the iron plate 10. When the sliding block 7 moves, it drives the electromagnetic lock 11 to move. The electromagnetic lock 11 slides at the top of the iron plate 10. When it is necessary to fix the position of the sliding block 7, the electromagnetic lock 11 is opened, and the electromagnetic lock 11 attracts the iron plate 10, thereby achieving a firm lock on the position of the sliding block 7, thus ensuring that the sealing plate 8 is firmly fixed in position. When the electromagnetic lock 11 is closed, it is convenient to continue moving the sliding block 7.

[0025] In this solution, the guiding mechanism includes a guide groove and a guide block 12. The guide groove is opened on one side of the lifting groove, and the guide block 12 is located in the guide groove. The guide block 12 is connected to the lifting box 3. When the lifting box 3 moves, it drives the guide block 12 to move. The guide block 12 moves linearly in the guide groove, thereby improving the accuracy of the lifting box 3 when it moves.

[0026] In this design, a bearing seat 13 is provided between the lead screw 6 and one side of the adjusting groove, which can improve the stability of the lead screw 6 when it rotates.

[0027] In this design, both the guide groove and the guide block 12 are T-shaped. The T-shaped structure can improve the stability of the guide block 12 in the guide groove and prevent the guide block 12 from detaching from the guide groove.

[0028] In this solution, the camera mechanism includes a camera device 14 and an illumination mechanism 15. Both the camera device 14 and the illumination mechanism 15 are installed on the detection slot. The camera device 14 facilitates the recording of the surrounding area, and the illumination mechanism 15 facilitates the illumination of the surrounding area.

[0029] In this scheme, the drive motor 5 is a servo motor, which has the characteristic of high rotational accuracy, thereby improving the rotational accuracy of the lead screw 6.

[0030] In this solution, the top of the lifting box 3 is provided with an anti-collision plate 16, which can reduce the occurrence of foreign objects falling and hitting the lifting box 3.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A blasting point positioning device for tunnels, comprising a mobile vehicle (1), wherein a mounting box (2) is provided at the top of the mobile vehicle (1), characterized in that, The top of the mounting box (2) is provided with a lifting groove, the bottom of the lifting groove is provided with a mounting groove, the lifting groove is provided with a lifting box (3), the mounting groove and the lifting box (3) are provided with a lifting mechanism and a guiding mechanism, the two sides of the lifting box (3) are provided with a detection mechanism, the detection mechanism includes a detection groove and an adjustment groove, the detection groove is opened on one side of the lifting box (3), the adjustment groove is opened at the bottom of the detection groove, the detection groove is provided with a laser rangefinder (4) and a camera mechanism, the one side of the adjustment groove is provided with a drive motor (5), the output end of the drive motor (5) is provided with a lead screw (6), the lead screw (6) is provided with a sliding block (7), the sliding block (7) is provided with a threaded hole, the lead screw (6) passes through the threaded hole, the sliding block (7) and the detection groove are provided with a sealing plate (8), the two sides of the sealing plate (8) and the adjustment groove are provided with baffles (9), the sliding block (7) and the adjustment groove are provided with a locking mechanism.

2. The blasting point positioning device for tunnels according to claim 1, characterized in that, The locking mechanism includes an iron plate (10) and an electromagnetic lock (11). The electromagnetic lock (11) is installed at the bottom end of the sliding block (7), the iron plate (10) is installed at the bottom end of the adjusting groove, and the electromagnetic lock (11) abuts against the iron plate (10).

3. A blasting point positioning device for tunnels according to claim 2, characterized in that, The guiding mechanism includes a guide groove and a guide block (12). The guide groove is opened on one side of the lifting groove, and the guide block (12) is located in the guide groove. The guide block (12) is connected to the lifting box (3).

4. A blasting point positioning device for tunnels according to claim 3, characterized in that, A bearing seat (13) is provided between the lead screw (6) and one side of the adjusting groove.

5. A blasting point positioning device for tunnels according to claim 4, characterized in that, Both the guide groove and the guide block (12) have a T-shaped structure.

6. A blasting point positioning device for tunnels according to claim 5, characterized in that, The camera mechanism includes a camera device (14) and an illumination mechanism (15), both of which are mounted on the detection slot.

7. A blasting point positioning device for tunnels according to claim 6, characterized in that, The drive motor (5) is a servo motor.

8. A blasting point positioning device for tunnels according to claim 7, characterized in that, The top of the lifting box (3) is provided with a shockproof plate (16).