Device and method for rapidly detecting hole depth data

Abstract

The invention relates to the technical field of hole depth detection, and particularly discloses a hole depth data rapid detection device and method. The measuring mechanism comprises a measuring box located on the base, a foldable measuring rod at least partially located in the measuring box, a top plate unit used for driving the measuring rod to be unfolded or folded and measuring ropes distributed along the measuring rod, and the measuring rod comprises a plurality of first folding rods and second folding rods which are oppositely arranged; the first folding rod and the second folding rod are rotationally connected up and down in a staggered manner; the top of the measuring rope is fixed at the uppermost part of the measuring rod; and the top plate unit comprises two groups of conveyor belts which are vertically arranged on the two sides of the measuring rod respectively, and a first top plate capable of driving the first folding rod to move vertically and a second top plate capable of driving the second folding rod to move vertically are fixed on the conveyor belts respectively. The hole depth detection device can efficiently and accurately realize hole depth detection, and is simple in structure and suitable for popularization.

Description

Technical Field

[0001] The present invention relates to the technical field of hole depth detection, and in particular to a device and method for quickly detecting hole depth data. Background Art

[0002] In tunnel excavation and other civil engineering construction, the drill-and-blast method is a commonly used tunnel excavation method both domestically and internationally due to its adaptability to geological conditions and low excavation costs. Parameters such as blasthole depth, angle, spacing, and diameter are crucial to the effectiveness of blasting excavation. These parameters significantly influence the charge, bulk ore content, fine ore content, over-excavation, under-excavation, and cycle footage, significantly impacting project costs, schedule, and quality. Therefore, blasthole parameter measurement is essential before blasting.

[0003] The inventors discovered that currently, most existing measurement methods rely on tape measures, which are inefficient and inaccurate. Furthermore, manual measurement of blasthole parameters in unfavorable locations is difficult, impacting blasting effectiveness, leading to surrounding rock damage and severe over- and under-excavation, significantly impacting tunnel construction speed and significantly increasing project costs. Measuring blasthole parameters on the face often requires climbing a gantry, which carries the risk of loosening and falling rock at the face and personnel falling off the gantry, posing significant safety hazards during the measurement process. Summary of the Invention

[0004] In view of this, the present invention provides a device for rapid detection of hole depth data to improve the efficiency of hole depth data monitoring.

[0005] In order to achieve the above-mentioned object, the basic solution of the present invention provides a device for rapid detection of hole depth data, comprising:

[0006] base;

[0007] The measuring mechanism includes a measuring box located on a base, a foldable measuring rod at least partially located in the measuring box, a top plate unit for driving the measuring rod to move vertically, and a measuring rope distributed along the measuring rod. The measuring rod includes a plurality of first folding rods and second folding rods arranged in opposite directions, the first folding rods and the second folding rods being connected to rotate up and down in a staggered manner, and the top of the measuring rope is fixed to the uppermost part of the measuring rod.

[0008] The top plate unit includes two sets of conveyor belts vertically arranged on both sides of the measuring rod.

[0009] A first top plate capable of driving the first folding rod to move vertically and a second top plate capable of driving the second folding rod to move vertically are fixed.

[0010] In a possible design, it further includes a hydraulic lifting platform fixed on the base, one end of the measuring box is hinged to the hydraulic lifting platform, and the other end of the measuring box is hinged to the hydraulic lifting platform through a telescopic rod.

[0011] In a possible design, the telescopic rod includes a left-handed threaded rod, a threaded sleeve, and a right-handed threaded rod, one end of which is hinged to the hydraulic lifting platform, and the other end of the left-handed threaded rod and the other end of the right-handed threaded rod are both threadedly connected to the threaded sleeve.

[0012] In a possible design, outer sides of the first folding rod and the second folding rod are both provided with ejector pins driven by the first ejector plate and the second ejector plate respectively.

[0013] In one possible design, the first top plate and the second top plate are configured as follows:

[0014] When the second top plate is disengaged from the top pin of the second folding rod, the first top plate drives the top pin of the first folding rod to move along direction A. When the first top plate is disengaged from the top pin of the first folding rod, the second top plate drives the top pin of the second folding rod to move along direction A, where direction A is upward or downward.

[0015] In a possible design, it also includes a disengagement unit and a locking unit arranged at the connection between the first folding rod and the second folding rod, the locking unit includes a locking pin slidably arranged on the first folding rod, and a locking hole for inserting the locking pin is correspondingly provided on the second folding rod, and a spring is provided between the inner end of the locking pin and the first folding rod; the disengagement unit includes an electromagnet arranged on the inner wall of the measuring box and opposite to the outer end of the locking pin, a permanent magnet is provided at the outer end of the locking pin, and the electromagnet is configured as follows: when the measuring rod is folded, the electromagnet repels the locking pin toward one end of the locking pin and overcomes the spring resistance to cause the locking pin to disengage from the locking hole.

[0016] In a possible design, the first folding rod and the second folding rod are both U-shaped.

[0017] In a possible design, the first folding rod is provided with a through hole for the measuring rope to pass through.

[0018] In a possible design, running wheels are provided at the bottom of the base and handles are provided at the sides of the base.

[0019] The present invention also provides a method for rapid detection of hole depth data. The method is based on the device as described above and includes the following steps:

[0020] Step 1: Move the base and measuring mechanism below the tunnel top hole;

[0021] Step 2: Start the conveyor belt to rotate forward, and extend the first folding rod and the second folding rod through the first top plate and the second top plate respectively. The measuring rod drives the measuring rope to rise continuously until the measuring rod touches the deepest part of the tunnel top hole. At this time, stop the conveyor belt, tighten the measuring rope, and read the reading where the measuring rope is flush with the lower end of the tunnel top hole, which is the hole depth;

[0022] Step 3, start the conveyor belt to rotate in the opposite direction, and drive the first folding rod and the second folding rod to fold through the first top plate and the second top plate respectively. The measuring rod drives the measuring rope to continuously lower its height until the measuring rod returns to its initial state. At this time, stop the conveyor belt.

[0023] Compared with the prior art, the principles and effects of the present invention are as follows:

[0024] (1) The device of the present invention is suitable for measuring the hole depth data of the tunnel top. The device of the present invention is easy to operate. Through the cooperation of the conveyor belt, the first top plate, the second top plate and the first folding rod and the second folding rod, the measuring rod can drive the measuring rope to quickly extend to the maximum hole depth, so that the hole depth data can be obtained quickly and accurately. At the same time, after obtaining the hole depth data, the measuring rod can be quickly folded, and the whole process can be realized by controlling the movement of the conveyor belt, which is convenient and fast, and reduces labor costs and labor intensity.

[0025] (2) What is particularly important is that the device of the present invention can be folded up quickly and conveniently, which is more advantageous when long and large measuring tools cannot be used directly in the narrow space of a tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 A schematic structural diagram of a device for rapid hole depth data detection proposed in an embodiment of the present application is shown;

[0028] Figure 2 A schematic diagram of the structure of a measuring mechanism in a rapid hole depth data detection device proposed in an embodiment of the present application is shown;

[0029] Figure 3 A schematic diagram of the structure of a measuring mechanism in a rapid hole depth data detection device proposed in an embodiment of the present application is shown;

[0030] Figure 4 A top view of a measuring mechanism of a rapid hole depth data detection device proposed in an embodiment of the present application is shown;

[0031] Figure 5 A schematic structural diagram of a measuring rod in an extended state in a device for rapid hole depth data detection according to an embodiment of the present application is shown;

[0032] Figure 6 A schematic structural diagram of a first folding rod and a second folding rod in an extended state in a device for rapid hole depth data detection proposed in an embodiment of the present application is shown;

[0033] Figure 7 Shown Figure 6 Cross-sectional view of part A. DETAILED DESCRIPTION

[0034] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention. They are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. By referring to these contents, ordinary technicians in this field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0035] Description of reference numerals:

[0036] Base 10, handle 11, hydraulic lifting platform 12, measuring box 20, conveyor belt 21, first top plate 22, second top plate 23, second measuring rod 24, first folding rod 25, threaded sleeve 26, left-handed threaded rod 27, right-handed threaded rod 28, push pin 29, through hole 30, locking pin 31, ball 32, spring 33, motor 34, electromagnet 35, measuring rope 36.

[0037] In particular, in order to better demonstrate and understand the structure of the device of the present invention, Figure 2-7 The components of the device are omitted in order to better highlight and independently display each component.

[0038] like Figure 1-7 As shown, an embodiment of the present invention discloses a device for rapid detection of hole depth data, comprising:

[0039] The base is provided with running wheels at the bottom and handles on the sides of the base. The base is the mounting support for all components of the device of the present invention. The setting of the running wheels can facilitate the movement of the base and other components, facilitate the adjustment of the position of the device of the present invention, and the setting of the handle facilitates the operator to push the device of the present invention;

[0040] The measuring mechanism includes a measuring box located on a base, a foldable measuring rod located at least partially in the measuring box, a top plate unit for driving the measuring rod to move vertically, and a measuring rope distributed along the measuring rod. The arrangement of the measuring box facilitates the folding and unfolding of the measuring rod. An opening is provided on the top of the measuring box for the measuring rod to extend or retract. The measuring rod includes a plurality of first folding rods and second folding rods arranged opposite to each other. The first folding rod and the second folding rod are both U-shaped. Such an arrangement can improve the structural strength of the first folding rod and the second folding rod. The first folding rod and the second folding rod are rotatably connected up and down in an staggered manner, that is, the U-shaped openings of the first folding rod and the second folding rod are arranged relative to each other, the upper end of the first folding rod is rotatably connected to the lower end of the second folding rod above, and the lower end of the first folding rod is rotatably connected to the second folding rod below. The upper ends of the folding rods are rotatably connected. In essence, the first folding rod and the second folding rod have the same or similar shapes and structures, but are arranged in opposite directions. Since the first folding rod is the topmost when the measuring rod is unfolded, the top of the measuring rope is fixed to the topmost of the first folding rod. In this way, when the first folding rod is pressed against the deepest part of the hole, it can be regarded that one end of the measuring rope is located at the starting point of the hole depth measurement. A scale is provided on the measuring rope to facilitate the operator to read the hole depth data. Preferably, the initial value of the scale of the measuring rope is fixed to the topmost of the first folding rod to facilitate the operator to quickly read the hole depth data. Preferably, a through hole for the measuring rope to pass through is provided on the first folding rod, and the through holes are all arranged directly below the connection between the measuring rope and the first folding rod, so that when the measuring rope is tightened, the operator can obtain an accurate reading of the hole depth;

[0041] The top plate unit includes two groups of conveyor belts vertically arranged on both sides of the measuring rod, and the conveyor belts are arranged along the direction of expanding or folding the measuring rod. Specifically in this embodiment, the conveyor belt is arranged vertically, and the conveyor belt is an annular belt body, and its upper and lower ends are both wound on rotating rollers. The rotating rollers are rotatably arranged on the measuring box and the rotating rollers located above are driven by a motor. The motor is arranged outside the measuring box. A first top plate that can drive the first folding rod to move vertically and a second top plate that can drive the second folding rod to move vertically are respectively fixed on the conveyor belt. Since the first top plate and the second top plate are respectively located on both sides of the measuring rod, the first top plate can only drive the first folding rod, and the second top plate can only drive the second folding rod. Preferably, only one first top plate and one second top plate are provided, and the outer sides of the first folding rod and the second folding rod are respectively provided with top pins driven by the first top plate and the second top plate. The first top plate drives the first folding rod through the abutment cooperation between the top pin and the first top plate, and the second top plate drives the second folding rod through the abutment cooperation between the top pin and the second top plate.

[0042] The first top plate and the second top plate are configured as follows: when the second top plate is separated from the top pin of the second folding rod, the first top plate drives the top pin of the first folding rod to move along direction A; when the first top plate is separated from the top pin of the first folding rod, the second top plate drives the top pin of the second folding rod to move along direction A, wherein direction A is upward or downward; since the first top plate and the second top plate move back and forth periodically with the conveyor belt, the running trajectories of the first top plate and the second top plate differ by half a period, which can ensure that the first top plate and the second top plate alternately drive the measuring rod to extend or fold, and the first folding rod and the second folding rod are moved by approaching The time taken from horizontal to nearly vertical is less than or equal to half of the aforementioned cycle, which can ensure that the first top plate and the second top plate can stably drive the measuring rod to extend or fold; but please note that when the measuring rod is folded, most of the first folding rods and the second folding rods are in a nearly horizontal state, but the upper first folding rods and the second folding rods are still in a nearly vertical state, and some of the first folding rods and the second folding rods are still within the range of the first top plate and the second top plate. This can ensure that each time the measuring device is restarted, the first top plate, the second top plate and the measuring rod can operate stably.

[0043] The lengths of the first top plate and the second top plate are greater than those of the first folding rod and the second folding rod, so that when the first top plate drives the first folding rod in the working section or the second top plate drives the second folding rod in the working section, the first top plate can be in real time contact with the top pin of the first folding rod or the second top plate can be in real time contact with the top pin of the second folding rod, thereby ensuring that the first top plate and the second top plate can exert force in the working section. Figure 2-3 As shown, the interference position between the first top plate or the second top plate and the ejector pin will change during actual operation. In other words, the measuring rod will undergo a displacement perpendicular to the extension or folding direction during the extension or folding process, and the displacement is approximately equal to the length of the first folding rod or the second folding rod. This makes the device of the present invention also have the function of hole quality detection.

[0044] In at least one embodiment, the present invention further includes a disengagement unit and a locking unit provided at the connection between the first folding rod and the second folding rod, the locking unit including a locking pin slidably provided on the first folding rod, a locking hole for inserting the locking pin correspondingly provided on the second folding rod, and a spring provided between the inner end of the locking pin and the first folding rod; when the first folding rod and the second folding rod are both swung to a position close to vertical, the locking pin is aligned with the locking hole, and at this time, the locking pin is inserted into the locking hole under the action of the spring, thereby locking the first folding rod and the second folding rod in a fixed manner and preventing relative rotation. The provision of the locking unit enables the measuring rod to stably extend upward;

[0045] The disengagement unit includes an electromagnet arranged on the inner wall of the measuring box and opposite to the outer end of the locking pin. The outer end of the locking pin is provided with a permanent magnet. The electromagnet is configured so that when the measuring rod is folded, the electromagnet moves toward one end of the locking pin and repels the locking pin and overcomes the spring resistance to cause the locking pin to disengage from the locking hole; all the first folding rods are located on the same side and all the second folding rods are located on the other side. Figure 4 As shown, in this embodiment, the electromagnet is installed on the measuring box near the side of the second folding rod. When the measuring rod needs to be folded after the measurement is completed, the electromagnet is started and repels the outer end of the locking pin (the end of the locking pin close to the locking hole is the outer end, and the end of the locking pin close to the spring is the inner end), so that the locking pin overcomes the spring force and slides out of the locking hole, and the conveyor belt rotates in the opposite direction. At this time, the measuring rod is folded under the drive of the first top plate and the second top plate. Furthermore, in order to facilitate the first top plate and the second top plate to generate downward torque on the first folding rod and the second folding rod respectively, the first folding rod and the second folding rod are in an extended state. There is an angle of 1°-2° between the first folding rod and the second folding rod and the extension direction of the measuring rod. This can facilitate the first top plate and the second top plate to apply force better when the measuring rod is folded, so that the reliability, stability and efficiency of the entire device can be greatly improved.

[0046] In at least one embodiment, the device further comprises a hydraulic lift platform fixed to a base, wherein one end of the measuring box is hingedly connected to the hydraulic lift platform. The arrangement of the hydraulic lift platform facilitates adjustment of the starting height of the entire measuring box, which is very important when measuring the hole depth at the top of a tunnel and also improves the hole depth measurement range of the device of the present invention. The other end of the measuring box is hingedly connected to the hydraulic lift platform via a telescopic rod. The telescopic rod comprises a left-handed threaded rod, a threaded sleeve, and a right-handed threaded rod, each of which is hingedly connected to the measuring box at one end. The other ends of the left-handed threaded rod and the other end of the right-handed threaded rod are threadedly connected to the threaded sleeve. When the threaded sleeve is rotated in the forward direction, the left-handed threaded rod and the right-handed threaded rod move toward each other, the length of the telescopic rod decreases, and the inclination angle of the measuring box decreases. When the threaded sleeve is rotated in the reverse direction, the left-handed threaded rod and the right-handed threaded rod move in opposite directions, the length of the telescopic rod increases, and the inclination angle of the measuring box increases. Such a telescopic rod arrangement enables adjustment of the angle of the measuring box and the measuring rod, thereby facilitating the measurement of hole depth data at various angles.

[0047] The present invention also provides a method for rapid detection of hole depth data. The method is based on the device as described above and includes the following steps:

[0048] Step 1: Move the base and measuring mechanism below the tunnel top hole;

[0049] Step 2: Start the conveyor belt to rotate forward, and extend the first folding rod and the second folding rod through the first top plate and the second top plate respectively. The measuring rod drives the measuring rope to rise continuously until the measuring rod touches the deepest part of the tunnel top hole. At this time, stop the conveyor belt, tighten the measuring rope, and read the reading where the measuring rope is flush with the lower end of the tunnel top hole, which is the hole depth;

[0050] Step 3, start the conveyor belt to rotate in the opposite direction, and drive the first folding rod and the second folding rod to fold through the first top plate and the second top plate respectively. The measuring rod drives the measuring rope to continuously lower its height until the measuring rod returns to its initial state. At this time, stop the conveyor belt.

[0051] In summary, (1) the device of the present invention is suitable for measuring the hole depth data of the tunnel top. The device of the present invention is easy to operate. Through the cooperation of the conveyor belt, the first top plate, the second top plate and the first folding rod and the second folding rod, the measuring rod can drive the measuring rope to quickly extend to the maximum hole depth, so that the hole depth data can be obtained quickly and accurately. At the same time, after obtaining the hole depth data, the measuring rod can be quickly folded, and the entire process can be achieved by controlling the movement of the conveyor belt, which is convenient and fast, and reduces labor costs and labor intensity.

[0052] (2) What is particularly important is that the device of the present invention can be folded up quickly and conveniently, which is more advantageous when long and large measuring tools cannot be used directly in the narrow space of a tunnel.

[0053] Although the above methods are illustrated and described as a series of actions for simplicity of explanation, it should be understood and appreciated that these methods are not limited by the order of the actions, because according to one or more embodiments, some actions may occur in different orders and / or concurrently with other actions from the diagrams and descriptions herein or not illustrated and described herein but understood by those skilled in the art. Those skilled in the art will further appreciate that the various illustrative logic blocks, modules, circuits, and algorithm steps described in conjunction with the embodiments disclosed herein can be implemented as electronic hardware, computer software, or a combination of the two. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps are generally described above in terms of their functionality. Whether such functionality is implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system. Technicians can implement the described functionality in different ways for each specific application, but such implementation decisions should not be interpreted as resulting in a departure from the scope of the present invention.

[0054] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A rapid detection device for hole depth data, characterized in that: include: base; The measuring mechanism includes a measuring box located on a base, a foldable measuring rod at least partially located in the measuring box, a top plate unit for driving the measuring rod to move vertically, and a measuring rope distributed along the measuring rod. The measuring rod includes a plurality of first folding rods and second folding rods arranged in opposite directions, the first folding rods and the second folding rods being connected to rotate up and down in a staggered manner, and the top of the measuring rope is fixed to the uppermost part of the measuring rod. The top plate unit includes two groups of conveyor belts vertically arranged on both sides of the measuring rod, and the conveyor belts are respectively fixed with a first top plate that can drive the first folding rod to move vertically and a second top plate that can drive the second folding rod to move vertically.

2. A hole depth data rapid detection device according to claim 1, characterized in that: It also includes a hydraulic lifting platform fixed on the base, one end of the measuring box is hinged to the hydraulic lifting platform, and the other end of the measuring box is hinged to the hydraulic lifting platform through a telescopic rod.

3. A rapid hole depth data detection device according to claim 2, characterized in that: The telescopic rod includes a left-handed threaded rod, a threaded sleeve, and a right-handed threaded rod, one end of which is hinged to the hydraulic lifting platform. The other ends of the left-handed threaded rod and the other ends of the right-handed threaded rod are both threadedly connected to the threaded sleeve.

4. A rapid hole depth data detection device according to claim 2 or 3, characterized in that: The outer sides of the first folding rod and the second folding rod are both provided with ejector pins which are driven by the first ejector plate and the second ejector plate respectively.

5. The hole depth data rapid detection device according to claim 4, characterized in that: The first top plate and the second top plate are configured as follows: When the second top plate is disengaged from the top pin of the second folding rod, the first top plate drives the top pin of the first folding rod to move along direction A. When the first top plate is disengaged from the top pin of the first folding rod, the second top plate drives the top pin of the second folding rod to move along direction A, where direction A is upward or downward.

6. A rapid hole depth data detection device according to any one of claims 1 to 3 or 5, characterized in that: The folding mechanism further comprises a disengagement unit and a locking unit provided at the connection between the first folding rod and the second folding rod, wherein the locking unit comprises a locking pin slidably provided on the first folding rod, a locking hole for inserting the locking pin correspondingly provided on the second folding rod, and a spring provided between the inner end of the locking pin and the first folding rod; The disengagement unit includes an electromagnet arranged on the inner wall of the measuring box and opposite to the outer end of the locking pin. A permanent magnet is provided at the outer end of the locking pin. The electromagnet is configured as follows: when the measuring rod is folded, the electromagnet repels the locking pin toward one end of the locking pin and overcomes the spring resistance to cause the locking pin to disengage from the locking hole.

7. A rapid hole depth data detection device according to any one of claims 1 to 3 or 5, characterized in that: The first folding rod and the second folding rod are both U-shaped.

8. A rapid hole depth data detection device according to any one of claims 1 to 3 or 5, characterized in that: The first folding rod is provided with a through hole for the measuring rope to pass through.

9. The hole depth data rapid detection device according to claim 8, characterized in that: The bottom of the base is provided with walking wheels, and the side of the base is provided with handles.

10. A method for rapid detection of hole depth data, characterized in that: The method is based on the device according to any one of claims 1 to 9, comprising the following steps: Step 1: Move the base and measuring mechanism below the tunnel top hole; Step 2: Start the conveyor belt to rotate forward, and extend the first folding rod and the second folding rod through the first top plate and the second top plate respectively. The measuring rod drives the measuring rope to rise continuously until the measuring rod touches the deepest part of the tunnel top hole. At this time, stop the conveyor belt, tighten the measuring rope, and read the reading where the measuring rope is flush with the lower end of the tunnel top hole, which is the hole depth; Step 3, start the conveyor belt to rotate in the opposite direction, and drive the first folding rod and the second folding rod to fold through the first top plate and the second top plate respectively. The measuring rod drives the measuring rope to continuously lower its height until the measuring rod returns to its initial state. At this time, stop the conveyor belt.

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