A tunnel blasting hole positioning auxiliary device

Abstract

The utility model provides a kind of tunnel blast hole positioning auxiliary device, it is related to tunnel blasting technical field, including positioning device ontology, still including car body is set in the lower of positioning device ontology, connecting arm is set in the one end outside of positioning device ontology, adjusting piece is set in one side of car body, the adjusting piece is used to drive connecting arm to rotate, clamping plate is set in the end outside of connecting arm close to the positioning device ontology, the clamping plate is arc structure, clamping piece is set in the end outside of positioning device ontology, the clamping piece is used to drive the clamping plate to contract or expand, starting first motor can also be rotated by rotary arm with first motor output shaft as pivot, multi-dimension adjustment mode can accurately adapt the blast hole positioning demand of different positions, different angles of tunnel, reduce artificial positioning error, improve blast operation preparation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tunnel blasting technology, and in particular to a tunnel blasting hole positioning auxiliary device. Background Technology

[0002] Tunnels are a crucial component of highway and railway construction. Tunnel construction is challenging and requires advanced technology. In rocky geological conditions, smooth blasting with explosives is typically used for excavation, where explosives are used for extensive crushing, and tunneling machines perform minor shaping excavation. During blasting, holes are first drilled into the rock face at calculated locations using rock drilling equipment, and then explosives are used for directional blasting. The location of the directional blasting holes plays a vital role in the tunnel's formation, so precise positioning of the drilling locations is essential.

[0003] A search revealed Chinese patent CN214924354U, which discloses a blasting hole positioning device specifically for smooth blasting in tunnels. The device includes a chassis, a positioning mechanism, a control mechanism, and a power supply. The positioning mechanism is located on the upper right side of the chassis, the control mechanism is located in the middle of the upper part of the chassis, and the power supply is located on the upper left side of the chassis. The chassis is an electric four-wheeled vehicle platform. A travel motor and differential are mounted on the lower right wheel axle of the chassis. The travel motor is connected to the control mechanism via electrical wires. A protective canopy is located in the middle of the upper part of the chassis. This device achieves excellent results: by setting up a positioning mechanism on the chassis that can automatically determine the position, and accurately marking the location of the blasting hole using a marking machine's inkjet printer, the device effectively ensures the accurate location of the blasting hole. It also boasts high positioning efficiency and good construction safety, providing assurance for tunnel construction.

[0004] The aforementioned tunnel blasting hole positioning auxiliary device has poor angle adjustment capability, limited adjustment dimensions, and cumbersome operation. It is difficult to adapt to the complex curved rock walls or blasting requirements of different inclination angles in tunnels, which can easily lead to deviations in the position and direction of the blasting hole. This can result in problems such as irregular rock wall contours and severe over- or under-excavation after blasting. At the same time, the positioning device needs to be repeatedly disassembled and reassembled to adjust to the appropriate angle, which greatly prolongs the positioning operation time, reduces construction efficiency, and blasting holes with large deviations may also affect the stability of the tunnel structure, increase the amount of subsequent support work and construction costs, and fail to meet the core requirements of high-precision and high-efficiency positioning in tunnel blasting construction. Utility Model Content

[0005] The purpose of this utility model is to provide a tunnel blasting hole positioning auxiliary device, which can solve the problems of the above-mentioned tunnel blasting hole positioning auxiliary devices, which have poor angle adjustment capability of the positioning device body, single angle adjustment dimension, cumbersome operation, and difficulty in adapting to the complex curved rock walls or blasting requirements of different inclination angles in tunnels. This can easily lead to deviations in the position and direction of the blasting hole, resulting in problems such as irregular rock wall contours and serious over-excavation and under-excavation after blasting. At the same time, in order to adjust to the appropriate angle, the positioning device needs to be repeatedly disassembled and reassembled, which greatly prolongs the positioning operation time, reduces construction efficiency, and blasting holes with large deviations may also affect the stability of the tunnel structure, increase the amount of subsequent support work and construction costs, and fail to meet the core requirements of high-precision and high-efficiency positioning in tunnel blasting construction.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a tunnel blasting hole positioning auxiliary device, comprising a positioning device body, and further comprising: The vehicle body is located below the main body of the positioning device; A connecting arm is disposed on the outer side of one end of the positioning device body; An adjusting component is disposed on one side of the vehicle body, and the adjusting component is used to drive the connecting arm to rotate; A clamping plate is disposed on the outer side of the end of the connecting arm near the body of the positioning device, and the clamping plate has an arc-shaped structure; A clamping member is disposed on the outer side of the end of the positioning device body, and the clamping member is used to drive the clamping plate to retract or expand.

[0007] In one preferred embodiment, the rotating arm is rotatably mounted on the outer side of one end of the vehicle body; The first motor is mounted on the upper surface of the vehicle body, and the outer side of the main shaft of the first motor is connected to the inner side of the bottom end of the rotating arm; A connecting plate is fixedly disposed on the outer side of the end of the rotating arm away from the first motor; The second motor is installed on one side of the connecting plate; A worm gear is rotatably mounted on the inner side of one end of the connecting plate, and the outer side of the main shaft of the second motor is connected to one end of the worm gear; A rotating frame is rotatably mounted on the outer side of one end of the connecting plate; A worm gear is rotatably mounted on the inner side of the end of the rotating frame away from the worm. The worm gear and the worm are meshed together. A connecting rod is fixedly mounted on the inner side of the middle of the worm gear. The connecting arm is connected to the worm gear through the connecting rod.

[0008] In a preferred embodiment, a third motor is mounted on the outer side of the end of the connecting plate away from the second motor, and the outer side of the main shaft of the third motor is in contact with the outer side of one end of the rotating frame.

[0009] In a preferred embodiment, a protective cover is fixedly provided on one side of the rotating arm.

[0010] In a preferred embodiment, cooling fans are installed on the inner sides of both ends of the protective cover.

[0011] Its specific advantages are: the third motor can make it rotate around the worm gear as the axis, and starting the first motor can also drive it to rotate around the output shaft of the first motor through the rotating arm. The multi-dimensional adjustment method can accurately adapt to the positioning needs of blasting holes at different positions and angles in the tunnel.

[0012] In a preferred embodiment, the sliding bracket is fixedly disposed on the outer side of the end of the connecting arm; The first connecting block is movably disposed on the inner side of the end of the sliding frame; The second connecting block is slidably disposed on the inner side of the top of the sliding frame. The inner side of the second connecting block is in contact with the outer sides of both ends of the first connecting block, and one side of the second connecting block is connected to the clamping plate.

[0013] In a preferred embodiment, a threaded rod is threadedly connected to the inner side of the end of the connecting arm away from the connecting arm, and the outer side of the end of the threaded rod away from the third motor is rotatably connected to one side of the first connecting block. A rotary knob is fixedly provided on the outer side of the end of the threaded rod away from the first connecting block.

[0014] In a preferred embodiment, trapezoidal protrusions are provided on the outer sides of both ends of the first connecting block, and a trapezoidal groove is provided at the end of the second connecting block, with the trapezoidal protrusions of the first connecting block located inside the trapezoidal groove of the second connecting block.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This tunnel blasting hole positioning auxiliary device enables stable clamping and flexible multi-angle adjustment of the positioning device body, significantly improving the accuracy and efficiency of tunnel blasting hole positioning. After placing the positioning device body on the clamping plate, rotating the rotary knob will cause the clamping plate to tighten the positioning device body via threaded rods, connecting blocks, and other components, ensuring stability during the positioning process and allowing for quick installation and fixation of the positioning device body. Starting the second motor will cause the positioning device body to rotate around the connecting rod as its axis; starting the third motor will cause it to rotate around the worm gear as its axis; and starting the first motor will also cause it to rotate around the output shaft of the first motor via a rotating arm. This multi-dimensional adjustment method can precisely adapt to the positioning needs of blasting holes at different locations and angles in the tunnel, reducing manual positioning errors and improving the efficiency of blasting operation preparation. Attached Figure Description

[0016] Figure 1A schematic diagram of the main structure of a tunnel blasting hole positioning auxiliary device provided by this utility model; Figure 2 A schematic diagram of the protective cover and cooling fan in a tunnel blasting hole positioning auxiliary device provided by this utility model; Figure 3 A schematic diagram of the connecting plate and the second motor in a tunnel blasting hole positioning auxiliary device provided by this utility model; Figure 4 This is a schematic diagram of the structure of the first connecting block and the second connecting block in a tunnel blasting hole positioning auxiliary device provided by this utility model.

[0017] Legend: 1. Positioning device body; 101. Vehicle body; 2. Connecting arm; 201. Rotating arm; 202. First motor; 203. Connecting plate; 204. Second motor; 205. Worm gear; 206. Third motor; 207. Rotating frame; 208. Worm wheel; 209. Connecting rod; 210. Protective cover; 211. Cooling fan; 3. Clamping plate; 301. Sliding frame; 302. First connecting block; 303. Threaded rod; 304. Second connecting block; 305. Rotary knob. Detailed Implementation

[0018] 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. Example

[0019] Please see Figure 1 - Figure 4 This embodiment provides a tunnel blasting hole positioning auxiliary device that facilitates angle adjustment, and its specific concept is as follows: A tunnel blasting hole positioning auxiliary device includes a positioning device body 1, and the tunnel blasting hole positioning auxiliary device also includes a connecting arm 2 and an adjusting component.

[0020] The positioning device body 1 has a vehicle body 101 below it, a connecting arm 2 is provided on the outer side of one end of the positioning device body 1, and an adjusting component is provided on one side of the vehicle body 101. Its core function is to drive the connecting arm 2 to rotate.

[0021] As some examples, in this embodiment, the adjusting element includes a rotating arm 201 and a first motor 202.

[0022] Among them, a rotating arm 201 is rotatably connected to the outer side of one end of the vehicle body 101. The main shaft of the first motor 202 installed on the upper surface of the vehicle body 101 is fixedly connected to the inner side of the bottom end of the rotating arm 201. The first motor 202 drives the rotating arm 201 to rotate around the end of the vehicle body 101, so as to realize the left and right position adjustment of the connecting arm 2 in the tunnel cross section and adapt to the positioning of blasting holes in different lateral positions.

[0023] Meanwhile, a connecting plate 203 is fixedly connected to the outer side of the end of the rotating arm 201 away from the first motor 202. The main shaft of the second motor 204 installed on one side of the connecting plate 203 is fixed to the worm 205 rotatably connected to the inner side of one end of the connecting plate 203. A rotating frame 207 is rotatably connected to the outer side of one end of the connecting plate 203. A worm wheel 208 is rotatably connected to the inner side of the end of the rotating frame 207 away from the worm 205. The worm wheel 208 meshes with the worm 205. A connecting rod 209 fixed to the inner side of the middle of the worm wheel 208 is fixedly connected to the connecting arm 2. When the second motor 204 drives the worm 205 to rotate, the connecting arm 2 rotates around the axis of the worm wheel 208 through the meshing transmission between the worm 205 and the worm wheel 208. The self-locking characteristic of the worm wheel 208 and worm 205 mechanism can ensure that the angle of the connecting arm 2 is stable after positioning, avoiding deviation by external force.

[0024] In addition, a third motor 206 is installed on the outer side of the end of the connecting plate 203 away from the second motor 204. Its main shaft is fixed to the outer side of one end of the rotating frame 207. The third motor 206 drives the rotating frame 207 to rotate as a whole, which can drive the connecting arm 2 to achieve side-tilting angle adjustment.

[0025] The protective cover 210 fixed on one side of the rotating arm 201 can be screwed into the inside of the protective cover 210 when the positioning device body 1 is not rotating, and the heat dissipation fans 211 installed on the inner sides of both ends can dissipate the heat generated by the positioning device body 1 in a timely manner. Example

[0026] Please see Figure 1 - Figure 4 This embodiment provides a tunnel blasting hole positioning auxiliary device that facilitates clamping and fixing. The specific idea is as follows: A tunnel blasting hole positioning auxiliary device includes a positioning device body 1, and the tunnel blasting hole positioning auxiliary device also includes a clamping plate 3 and a clamping component.

[0027] Among them, the connecting arm 2 is provided with a clamping plate 3 on the outer side of the end near the positioning device body 1, and the positioning device body 1 is provided with a clamping component on the outer side of the end. Its core function is to drive the clamping plate 3 to contract or expand.

[0028] As examples, in this embodiment, the clamping element includes a sliding frame 301 and a first connecting block 302.

[0029] The connecting arm 2 is fixedly connected to a sliding frame 301 on its outer end. A first connecting block 302 is movably provided on the inner end of the sliding frame 301, and trapezoidal protrusions are provided on the outer ends of both ends of the first connecting block 302. A second connecting block 304 is slidably connected to the inner top of the sliding frame 301, and a trapezoidal groove is opened at its end. The trapezoidal protrusions of the first connecting block 302 are embedded in the groove of the second connecting block 304. The concave and convex fit of the trapezoidal structure forms a guiding transmission relationship, which restricts the relative displacement direction of the two and ensures that when the first connecting block 302 moves axially, it can accurately drive the second connecting block 304 to slide radially along the sliding frame 301.

[0030] In addition, a threaded rod 303 is threadedly connected to the inner side of the end of the connecting arm 2 away from the third motor 206. One end of the threaded rod 303 is rotatably connected to one side of the first connecting block 302, and the other end is fixedly connected to a rotary knob 305. When the rotary knob 305 is rotated, the threaded rod 303 is pushed forward or backward along the axial direction of the connecting arm 2, thereby driving the first connecting block 302 to move synchronously. When the first connecting block 302 moves toward the clamping plate 3, the trapezoidal protrusion presses against the inclined surface of the groove of the second connecting block 304, pushing the second connecting block 304 to expand outward along the sliding frame 301, thereby causing the clamping plate 3 to open; conversely, when the first connecting block 302 moves in the opposite direction, the second connecting block 304 contracts inward under its own gravity or restoring force, and the clamping plate 3 closes and clamps.

[0031] In addition, one side of the second connecting block 304 is fixedly connected to the arc-shaped clamping plate 3, so that the clamping plate 3 can shrink or expand as the second connecting block 304 moves radially, which can adapt to positioning device bodies 1 of different diameters, ensure stable clamping force, and avoid loosening.

[0032] Working principle: When using this device, the user can place the end of the positioning device body 1 inside the clamping plate 3. The user can then rotate the threaded rod 303 using the rotary knob 305. As the threaded rod 303 rotates, it moves away from the clamping plate 3. Simultaneously, the first connecting block 302 moves, pulling the two second connecting blocks 304 inwards via the trapezoidal protrusions on its outer ends. The movement of the second connecting blocks 304 causes the clamping plate 3 to clamp inwards, thus clamping and limiting the end of the positioning device body 1. When the user needs to adjust the angle of the positioning device body 1, the user can start the second motor 204. The second motor 204, through the worm gear 205, can drive... The worm gear 208 inside the rotating frame 207 rotates. As the worm gear 208 rotates, it drives the connecting arm 2 to rotate via the connecting rod 209. This causes the positioning device body 1 at the end of the connecting arm 2 to rotate around the axis of the connecting rod 209. The user starts the third motor 206, which drives the rotating frame 207 to rotate around the axis of the worm 205. This, in turn, causes the positioning device body 1 inside the clamping plate 3 to rotate around the axis of the worm 205. The user starts the first motor 202, which drives the rotating arm 201 to rotate around the axis of the output shaft of the first motor 202. This allows for multi-angle adjustment of the positioning device body 1.

[0033] This tunnel blasting hole positioning auxiliary device enables stable clamping and flexible multi-angle adjustment of the positioning device body 1, significantly improving the accuracy and efficiency of tunnel blasting hole positioning. After placing the positioning device body 1 on the clamping plate 3, rotating the rotary knob 305 will cause the clamping plate 3 to clamp the positioning device body 1 through the threaded rod 303, connecting block and other components, ensuring stability during the positioning process and allowing for quick installation and fixation of the positioning device body 1. Starting the second motor 204 will cause the positioning device body 1 to rotate around the connecting rod 209 as the axis, starting the third motor 206 will cause it to rotate around the worm gear 205 as the axis, and starting the first motor 202 will also cause it to rotate around the output shaft of the first motor 202 through the rotating arm 201. The multi-dimensional adjustment method can accurately adapt to the positioning needs of blasting holes at different positions and angles in the tunnel, reduce manual positioning errors and improve the efficiency of blasting operation preparation.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A tunnel blasting hole positioning auxiliary device, comprising a positioning device body (1), characterized in that: Also includes: The vehicle body (101) is located below the positioning device body (1); A connecting arm (2) is disposed on the outer side of one end of the positioning device body (1); An adjusting member is provided on one side of the vehicle body (101), and the adjusting member is used to drive the connecting arm (2) to rotate; A clamping plate (3) is disposed on the outer side of the end of the connecting arm (2) near the positioning device body (1), and the clamping plate (3) has an arc-shaped structure; A clamping member is disposed on the outer side of the end of the positioning device body (1), and the clamping member is used to drive the clamping plate (3) to retract or expand; The adjusting element includes: A rotating arm (201) is rotatably mounted on the outer side of one end of the vehicle body (101); The first motor (202) is mounted on the upper surface of the vehicle body (101), and the outer side of the main shaft of the first motor (202) is connected to the inner side of the bottom end of the rotating arm (201); A connecting plate (203) is fixedly disposed on the outer side of the end of the rotating arm (201) away from the first motor (202); The second motor (204) is installed on one side of the connecting plate (203); The worm gear (205) is rotatably disposed on the inner side of one end of the connecting plate (203), and the outer side of the main shaft of the second motor (204) is connected to one end of the worm gear (205); A rotating frame (207) is rotatably mounted on the outer side of one end of the connecting plate (203); A worm gear (208) is rotatably disposed on the inner side of the end of the rotating frame (207) away from the worm (205). The worm gear (208) and the worm (205) are meshed and connected. A connecting rod (209) is fixedly disposed on the inner side of the middle part of the worm gear (208). The connecting arm (2) is connected to the worm gear (208) through the connecting rod (209).

2. The tunnel blasting hole positioning auxiliary device according to claim 1, characterized in that: A third motor (206) is installed on the outer side of the end of the connecting plate (203) away from the second motor (204), and the outer side of the main shaft of the third motor (206) is in contact with the outer side of one end of the rotating frame (207).

3. The tunnel blasting hole positioning auxiliary device according to claim 2, characterized in that: A protective cover (210) is fixedly installed on one side of the rotating arm (201).

4. The tunnel blasting hole positioning auxiliary device according to claim 3, characterized in that: Cooling fans (211) are installed on the inner sides of both ends of the shield (210).

5. The tunnel blasting hole positioning auxiliary device according to claim 4, characterized in that: The clamping element includes: A sliding frame (301) is fixedly disposed on the outer side of the end of the connecting arm (2); The first connecting block (302) is movably disposed on the inner side of the end of the sliding frame (301); The second connecting block (304) is slidably disposed on the inner side of the top of the sliding frame (301). The inner side of the second connecting block (304) is in contact with the outer sides of both ends of the first connecting block (302). One side of the second connecting block (304) is connected to the clamping plate (3).

6. The tunnel blasting hole positioning auxiliary device according to claim 5, characterized in that: The connecting arm (2) has a threaded rod (303) threadedly connected to the inner side of the end away from the connecting arm (2). The outer side of the end of the threaded rod (303) away from the third motor (206) is rotatably connected to one side of the first connecting block (302). A rotary knob (305) is fixedly provided on the outer side of the end of the threaded rod (303) away from the first connecting block (302).

7. The tunnel blasting hole positioning auxiliary device according to claim 5, characterized in that: The first connecting block (302) has trapezoidal protrusions on both outer sides, and the second connecting block (304) has trapezoidal grooves at its ends. The trapezoidal protrusions of the first connecting block (302) are located inside the trapezoidal grooves of the second connecting block (304).

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