A drilling and blasting hole punching angle detection device

Abstract

This utility model relates to the field of drilling and blasting technology. Addressing the problem that existing drilling angle measuring equipment suffers from significant systematic errors due to the influence of hole diameter distance, this invention discloses a drilling and blasting hole angle detection device. The device includes multiple arc-shaped support rods that can be arranged in a ring. It also includes at least two movable detection blocks, which are fitted onto and slidably connected to the side walls of the support rods. Each movable detection block is equipped with a rope measuring tape, the open end of which is located at the bottom of the block, and the starting end of which extends from the bottom. This device can measure the depth of different locations within a drilling and blasting hole using multiple movable detection blocks. When the depth difference between opposite sides is too large, it can be inferred that the drilling and blasting hole has a risk of angular deviation from the vertical direction, allowing technicians to select for further precise measurement.

Description

Technical Field

[0001] This utility model relates to the field of drilling and blasting technology, and more specifically, to a drilling and blasting hole angle detection device. Background Technology

[0002] In blasting engineering, blast holes are pre-drilled holes for loading explosives using drilling equipment such as drilling rigs. Their core function is to precisely control the position, quantity, and detonation sequence of explosives to achieve directional crushing, stripping, or demolition of target rock masses or structures. They are widely used in mining, tunnel excavation, building demolition, and water conservancy projects. The design of blast holes must consider engineering objectives such as the crushing range and rock mass stability, as well as geological conditions such as rock hardness and fracture distribution. Parameters typically include hole depth, diameter, hole spacing, and row spacing. For example, in mining, blast holes must ensure uniform ore crushing without damaging the ore pillar; in tunnel excavation, the outline of peripheral blast holes must be controlled to avoid over-excavation or under-excavation.

[0003] A skewed borehole direction directly affects blasting results, leading to uneven energy distribution of explosives, over-excavation or under-excavation, decreased rock mass stability, and even safety accidents. Therefore, timely detection of the borehole direction is crucial during construction. For example, patent CN221549670U discloses a device for measuring the angle of blasting boreholes in open-pit deep-hole blasting. This device includes a protractor, with a measuring rod rotatably connected to its back via a rotating shaft. An adjustment mechanism is fixedly connected to the bottom of the measuring rod. The adjustment mechanism also includes a support rod fixed to the bottom of the protractor, with a level fixedly connected to its middle section. A mounting groove is formed on the front of the support rod, and an adjustment component is rotatably connected inside the groove via a rotating shaft. Through the cooperation of the support rod, level, mounting groove, and adjustment component, the protractor is aligned with the surface of the blasting borehole at a 180-degree horizontal axis, ensuring axis consistency during measurement, preventing rod misalignment, and further improving the accuracy of borehole inclination detection.

[0004] However, existing blasting borehole angle measuring equipment, as described above, almost all have the following problems when in use: because the diameter of the blasting borehole is relatively large, when a single measuring rod is inserted into the hole for detection, the detection results are subject to large systematic errors due to the influence of the borehole diameter, which in turn affects the accuracy of the detection results and the safety of construction. Utility Model Content

[0005] The purpose of this invention is to solve the problem that existing blasting borehole angle measuring equipment suffers from large systematic errors due to the influence of borehole diameter distance during use. This application provides a blasting borehole angle detection device, which measures the depth of different positions of the blasting borehole using multiple movable detection blocks. When the depth difference between opposite sides is too large, it can be inferred that there is a risk of the blasting borehole angle deviating from the vertical direction, allowing technicians to choose to conduct further precise measurements.

[0006] This utility model is achieved through the following technical solution:

[0007] This utility model provides a drilling angle detection device for blast holes, including multiple arc-shaped support rods, which can be wound into a ring; it also includes at least two movable detection blocks, which are sleeved on the side wall of the support rods and slidably connected to the side wall of the support rods; each movable detection block is equipped with a rope ruler, the open end of which is located at the bottom of the movable detection block, and the starting end of which can extend from the bottom of the movable detection block.

[0008] Preferably, the two adjacent sections of the frame rod are provided with support platforms at their close ends. The support platform includes a base and a frame disposed on top of the base. The frame rod is detachably connected to the top of the frame platform.

[0009] Preferably, the frame is L-shaped, with one end of the frame vertically positioned on top of the base, and the other end of the frame horizontally positioned towards the drilling and blasting hole. The support rod is detachably connected to the end of the frame near the drilling and blasting hole.

[0010] Preferably, the movable detection block has an assembly hole in the horizontal direction, so that the frame rod can be inserted into the movable detection block through the assembly hole, and the rope ruler is embedded in the movable detection block on the side that is vertically below the assembly hole.

[0011] Preferably, the frame rod is arranged in a horizontal direction, and a slot strip is embedded in the top and / or bottom of the frame rod. A gear roller is arranged near the mounting hole with the slot strip. The roller teeth of the gear roller can engage with the groove of the slot strip, and the gear roller is rotatably connected to the inner wall of the mounting hole.

[0012] Preferably, the gear roller includes a roller shaft and a roller cylinder wound around the outer wall of the roller shaft. The surface of the roller cylinder is provided with a plurality of protrusions, and the protrusions are arranged along the direction of the roller shaft. The ends of the protrusions away from the roller cylinder can be engaged in the grooves of the slot strips.

[0013] Preferably, the rope ruler includes multiple tensioning wheels and a ruler rope. The tensioning wheels are embedded in the inner cavity of the movable detection block. One end of the ruler rope is detachably connected to the roller surface of one of the tensioning wheels. The ruler rope is wound around the outer periphery of the multiple tensioning wheels, and the other end of the ruler rope can pass through the movable detection block.

[0014] Preferably, a plumb bob is provided at the end of the measuring rope that extends out of the movable detection block.

[0015] The technical solution of this utility model has the following beneficial effects:

[0016] The drilling angle detection device for blast holes proposed in this utility model measures the depth of different positions of the blast hole through multiple movable detection blocks. When the depth difference between opposite sides is too large, it can be inferred that there is a risk of the blast hole deviating from the vertical direction. This allows technicians to choose to conduct further precise measurements to improve the efficiency and accuracy of blast hole angle detection. Attached Figure Description

[0017] Figure 1 This is a top view of the drilling and blasting angle detection device of this utility model.

[0018] Figure 2 This is a cross-sectional view of the active detection block in this utility model.

[0019] Figure 3 This is a schematic diagram of the structure of this utility model.

[0020] Reference numerals: 1-frame rod, 11-slot strip, 2-movable detection block, 21-assembly hole, 22-gear roller, 221-roller shaft, 222-roller, 223-protruding strip, 3-rope reel, 31-tension wheel, 32-rope, 33-plumb bob, 4-support platform, 41-base, 42-frame. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below. Where specific conditions are not specified in the embodiments, they are performed under conventional conditions or conditions recommended by the manufacturer; where the manufacturers of instruments, equipment, reagents, or raw materials are not specified, they are all conventional products that can be purchased commercially.

[0022] The following is a detailed embodiment with reference to the accompanying drawings.

[0023] like Figures 1 to 3As shown, this utility model provides a drilling angle detection device for blast holes, including two semi-circular rods 1, which are wound around each other to form a ring; it also includes two movable detection blocks 2, one movable detection block 2 is correspondingly disposed on one rod 1, the movable detection block 2 is sleeved on the side wall of the rod 1 and slidably connected to the side wall of the rod 1; the movable detection block 2 is equipped with a rope ruler 3, the open end of the rope ruler 3 is located at the bottom of the movable detection block 2, and the starting end of the rope ruler 3 can extend from the bottom of the movable detection block 2.

[0024] In this embodiment, a support platform 4 is provided at the close ends of two adjacent support rods 1. The support platform 4 includes a base 41 and a frame 42 disposed on top of the base 41. Specifically, the frame 42 is L-shaped, with one end of the frame 42 vertically positioned on top of the base 41 and the other end of the frame 42 horizontally facing the drill hole. The support rod 1 is screwed to the end of the frame 42 near the drill hole. Those skilled in the art can selectively configure a fixing device to enhance grip at the bottom of the base 41, depending on the construction environment and the size and location of the drill hole, to improve the stability of the drilling angle detection device.

[0025] In this embodiment, the movable detection block 2 has a horizontally oriented assembly hole 21, allowing the support rod 1 to pass through the assembly hole 21 and be inserted into the movable detection block 2. The rope ruler 3 is embedded in the movable detection block 2 on the side vertically below the assembly hole 21. The support rod 1 is arranged horizontally, and both the top and bottom of the support rod 1 are fitted with slot strips 11. A gear roller 22 is positioned near the slot strip 11 in the assembly hole 21, and the teeth of the gear roller 22 can engage with the grooves of the slot strip 11. Furthermore, the gear roller 22 is rotatably connected to the inner wall of the mounting hole 21; the gear roller 22 includes a roller shaft 221 and a roller 222 wound around the outer wall of the roller shaft 221. The surface of the roller 222 is provided with a plurality of protrusions 223, and the protrusions 223 are arranged along the direction of the roller shaft 221. The ends of the protrusions 223 away from the roller 222 can be engaged in the groove of the slot strip 11, so that the movable detection block 2 maintains a stable position during use and detection, avoiding inconvenience caused by unstable position during operation.

[0026] In this embodiment, the rope ruler 3 includes multiple tensioning rollers 31 and a ruler rope 32. The tensioning rollers 31 are embedded in the inner cavity of the movable detection block 2. One end of the ruler rope 32 is detachably connected to the roller surface of one tensioning roller 31. The ruler rope 32 is wound around the outer periphery of the multiple tensioning rollers 31. The other end of the ruler rope 32 can pass through the movable detection block 2. A plumb bob 33 is provided at the end of the ruler rope 32 that passes through the movable detection block 2 to ensure that the ruler rope 32 remains vertical and taut when the detection depth is measured, thereby reducing the detection error value.

[0027] The drilling angle detection device for blast holes in this embodiment measures the depth of different positions of the blast hole using multiple movable detection blocks 2. When the depth difference between opposite sides is too large, it can be inferred that the blast hole has a risk of deviating from the vertical direction. This allows technicians to choose to conduct further precise measurements to improve the efficiency and accuracy of blast hole angle detection. The specific value and standard for determining the depth difference are determined and adjusted by those skilled in the art based on the specific operational conditions. This standard depends on different operational situations and is technical content that those skilled in the art can accurately grasp; therefore, it will not be elaborated here. Those skilled in the art can determine it according to the actual situation.

[0028] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for detecting the drilling angle of blast holes, characterized in that, It includes multiple arc-shaped support rods (1), and the multiple support rods (1) can be wound into a ring; it also includes at least two movable detection blocks (2), the movable detection blocks (2) are sleeved on the rod side wall of the support rod (1) and are slidably connected to the rod side wall of the support rod (1); The active detection block (2) is equipped with a rope ruler (3), the open end of which is located at the bottom of the active detection block (2), and the starting end of which can extend from the bottom of the active detection block (2).

2. The drilling angle detection device for blast holes according to claim 1, characterized in that, Two adjacent support poles (1) are provided with support platforms (4) at their close ends. The support platform (4) includes a base (41) and a frame (42) disposed on top of the base (41). The support pole (1) is detachably connected to the top of the frame platform (42).

3. The drilling angle detection device for blast holes according to claim 2, characterized in that, The platform (42) is L-shaped, and one end of the platform (42) is set vertically on the top of the base (41), while the other end of the platform (42) is set horizontally toward the drilling and blasting hole. The support rod (1) is detachably connected to the end of the platform (42) near the drilling and blasting hole.

4. The drilling angle detection device for blast holes according to any one of claims 1 to 3, characterized in that, The movable detection block (2) has an assembly hole (21) in the horizontal direction, so that the frame rod (1) can be inserted into the movable detection block (2) through the assembly hole (21), and the rope ruler (3) is embedded in the movable detection block (2) on the side that is vertically below the assembly hole (21).

5. The drilling angle detection device for blast holes according to claim 4, characterized in that, The frame rod (1) is arranged in a horizontal direction. The top and / or bottom of the frame rod (1) are provided with a slot strip (11). A gear roller (22) is arranged near the slot strip (11) in the assembly hole (21). The roller teeth of the gear roller (22) can engage with the groove of the slot strip (11), and the gear roller (22) is rotatably connected to the inner wall of the assembly hole (21).

6. The drilling angle detection device for blast holes according to claim 5, characterized in that, The gear roller (22) includes a roller shaft (221) and a roller (222) wound around the outer wall of the roller shaft (221). The surface of the roller (222) is provided with a plurality of protrusions (223), and the protrusions (223) are arranged along the direction of the roller shaft (221). The ends of the protrusions (223) away from the roller (222) can be engaged in the groove of the slot strip (11).

7. The drilling angle detection device for blast holes according to claim 1, characterized in that, The rope ruler (3) includes multiple tensioning rollers (31) and a ruler rope (32). The tensioning rollers (31) are embedded in the inner cavity of the movable detection block (2). One end of the ruler rope (32) is detachably connected to the roller surface of one of the tensioning rollers (31). The ruler rope (32) is wound around the outer periphery of the multiple tensioning rollers (31). The other end of the ruler rope (32) can pass through the movable detection block (2).

8. The drilling angle detection device for blast holes according to claim 7, characterized in that, A plumb bob (33) is disposed at the end of the measuring rope (32) that passes through the movable detection block (2).

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