A hole depth data rapid detection device and method thereof

Abstract

The application relates to the technical field of hole depth detection, and particularly discloses a hole depth data rapid detection device and a method thereof, which comprises a base, a measuring mechanism, a top plate unit and a measuring rope distributed along a measuring rod. The measuring rod comprises a plurality of first folding rods and a plurality of second folding rods arranged oppositely, the first folding rods and the second folding rods are connected in an up-down rotation mode, and the top of the measuring rope is fixed to the uppermost part of the measuring rod. The top plate unit comprises two groups of conveying belts arranged vertically on the two sides of the measuring rod, the conveying belts are respectively provided with a first top plate capable of driving the first folding rods to move vertically and a second top plate capable of driving the second folding rods to move vertically. The application can efficiently and accurately realize hole depth detection, and is simple in structure and suitable for promotion.

Description

Technical Field

[0001] This invention relates to the field of borehole depth detection technology, and specifically to a rapid borehole depth data detection device and method. Background Technology

[0002] In tunnel excavation and other civil engineering construction, the drill-and-blast method remains a commonly used tunnel excavation method both domestically and internationally due to its strong adaptability to geological conditions and low excavation cost. During drilling and blasting, parameters such as the depth, angle, spacing, and diameter of the blast holes are crucial to the blasting excavation effect. These parameters significantly influence the charge quantity, the percentage of large ore blocks, the percentage of fine ore, over-excavation / under-excavation, and the cycle advance, thus greatly affecting project cost, schedule, and quality. Therefore, it is necessary to measure the parameters of the blast holes before blasting.

[0003] The inventors discovered that current measurement methods, mostly using measuring tapes, are inefficient, produce inaccurate data, and are difficult to use manually to measure borehole parameters in unfavorable spatial locations. This affects blasting effectiveness, leading to rock damage and severe over- and under-excavation, significantly impacting tunnel construction speed and greatly increasing project costs. Measuring borehole parameters at the tunnel face often requires climbing a scaffold, posing risks of loosened and falling rock at the face and personnel falling off the scaffold, creating significant safety hazards during the measurement process. Summary of the Invention

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

[0005] To achieve the above objectives, the basic solution of the present invention provides a rapid hole depth data detection device, comprising:

[0006] Base;

[0007] 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 measuring rod includes several first folding rods and second folding rods arranged opposite each other. The first folding rods and second folding rods are connected by staggered vertical rotation. The top of the measuring rope is fixed at the top of the measuring rod.

[0008] The top plate unit includes two sets of conveyor belts vertically arranged on both sides of the measuring rod, with each conveyor belt carrying a different type of conveyor belt.

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

[0010] In one possible design, a hydraulic lifting platform fixed to the base is also included, with one end of the measuring box hinged to the hydraulic lifting platform and the other end of the measuring box hinged to the hydraulic lifting platform via a telescopic rod.

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

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

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

[0014] When the second top plate disengages 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 disengages 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 one possible design, the device also includes a release unit and a locking unit located at the connection between the first folding rod and the second folding rod. The locking unit includes a locking pin slidably mounted on the first folding rod, and a corresponding locking hole on the second folding rod for the locking pin to be inserted. A spring is provided between the inner end of the locking pin and the first folding rod. The release unit includes an electromagnet located 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 such that when the measuring rod is folded, the electromagnet repels the locking pin at the locking pin end and overcomes the spring resistance, causing the locking pin to disengage from the locking hole.

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

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

[0018] In one possible design, the base has wheels at the bottom and handles on the sides.

[0019] This invention also provides a method for rapid detection of borehole depth data. This method is based on the apparatus described above and includes the following steps:

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

[0021] Step 2: Start the conveyor belt to rotate in the forward direction. The first and second top plates will drive the first and second folding rods to extend respectively. The measuring rod will drive the measuring rope to rise continuously until the measuring rod touches the deepest part of the hole at the top of the tunnel. At this time, stop the conveyor belt, tighten the measuring rope, and read the reading when the measuring rope is flush with the bottom of the hole at the top of the tunnel. This is the hole depth.

[0022] Step 3: Start the conveyor belt to rotate in the reverse direction. The first top plate and the second top plate will drive the first folding rod and the second folding rod to fold respectively. The measuring rod will drive the measuring rope to continuously decrease in height until the measuring rod returns to its initial state. At this point, 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 at the top of the tunnel. 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 as to obtain the hole depth data quickly and accurately. At the same time, the measuring rod can be quickly folded after obtaining the hole depth data. Moreover, 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) Moreover, the device of the present invention can be easily and quickly folded, which is even more advantageous in the narrow space of a tunnel when long and large measuring tools cannot be used directly. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the structure of a rapid hole depth data detection device according to an embodiment of this application is shown;

[0028] Figure 2 This paper shows a schematic diagram of the measuring mechanism in a rapid hole depth data detection device according to an embodiment of this application;

[0029] Figure 3 This paper shows a schematic diagram of the measuring mechanism in a rapid hole depth data detection device according to an embodiment of this application;

[0030] Figure 4 This paper shows a top view of the measuring mechanism of a rapid hole depth data detection device according to an embodiment of this application;

[0031] Figure 5 This paper shows a schematic diagram of the measuring rod in its extended state in a rapid hole depth data detection device according to an embodiment of this application.

[0032] Figure 6 This paper shows a schematic diagram of the structure of the first folding rod and the second folding rod in the extended state of a rapid hole depth data detection device according to an embodiment of this application;

[0033] Figure 7 It shows Figure 6 A sectional view of part A. Detailed Implementation

[0034] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings 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. With reference to these drawings, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0035] Explanation of reference numerals in the attached figures:

[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-hand threaded rod 27, right-hand threaded rod 28, top pin 29, through hole 30, locking pin 31, ball bearing 32, spring 33, motor 34, electromagnet 35, measuring rope 36.

[0037] Special note: In order to better demonstrate and understand the structure of the device of the present invention, Figure 2-7 All components of this device have been omitted from the display to better highlight and showcase each component independently.

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

[0039] The base has wheels at the bottom and handles on the sides. The base is the mounting support for all components in the device of the present invention. The wheels facilitate the movement of the base and other components, making it easy for the device to adjust its position. The handles make it easy for the operator to push the device.

[0040] The measuring mechanism includes a measuring box located on a base, a foldable measuring rod at least partially located within the measuring box, a top plate unit for vertically moving the measuring rod, and measuring ropes distributed along the measuring rod. The measuring box facilitates the folding and unfolding of the measuring rod. The top of the measuring box has an opening for the measuring rod to extend or retract. The measuring rod includes several opposing first folding rods and second folding rods, both of which are U-shaped. This arrangement enhances the structural strength of the first and second folding rods. The first and second folding rods are connected by staggered vertical rotation, meaning their U-shaped openings are opposite each other. The upper end of the first folding rod is rotatably connected to the lower end of the second folding rod above it, and the lower end of the first folding rod is connected to the lower end of the second folding rod below it. The upper end of the folding rod is rotatably connected. In essence, the first folding rod and the second folding rod have the same or similar shape and structure, only their arrangement is opposite. Since the first folding rod is the topmost when the measuring rod is unfolded, the top of the measuring rope is fixed at the top of the first folding rod. Thus, when the first folding rod is pressed against the deepest part of the hole, it can be regarded as one end of the measuring rope being located at the starting point of the hole depth measurement. The measuring rope has a scale to facilitate the operator to read the hole depth data. Preferably, the initial value of the scale of the measuring rope is fixed at the top of the first folding rod to facilitate the operator to quickly read the hole depth data. Preferably, the first folding rod has a through hole for the measuring rope to pass through. The through holes are all located directly below the connection between the measuring rope and the first folding rod so that the operator can obtain an accurate reading of the hole depth when the measuring rope is taut.

[0041] The top plate unit includes two sets of conveyor belts vertically arranged on both sides of the measuring rod. The conveyor belts are arranged along the direction of the measuring rod's unfolding or folding. Specifically, in this embodiment, the conveyor belts are vertically arranged and are annular belts with both ends wound around rotating rollers. The rotating rollers are rotatably mounted on the measuring box and are driven by a motor located at the top. The motor is located 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 fixed on the conveyor belts. Since the first top plate and the second top plate are 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. The outer sides of the first folding rod and the second folding rod are provided with pins that are driven by the first top plate and the second top plate, respectively. The first top plate drives the first folding rod through the abutting cooperation between the pins and the first top plate, and the second top plate drives the second folding rod through the abutting cooperation between the pins and the second top plate.

[0042] The first and second top plates are configured such that when the second top plate disengages 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 disengages 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. Since the first and second top plates move periodically back and forth with the conveyor belt, their trajectories differ by half a cycle. This ensures that the first and second top plates alternately drive the measuring rod to extend or fold, while the first and second folding rods move from near... The time taken to go from horizontal to near vertical is less than or equal to half of the aforementioned cycle, which ensures that the first and second top plates can stably drive the measuring rod to extend or fold. However, please note that when the measuring rod is folded, most of the first and second folding rods are in a near-horizontal state, but the uppermost first and second folding rods are still in a near-vertical state. Some of the first and second folding rods are still within the effective range of the first and second top plates. This ensures that the first and second top plates and the measuring rod can operate stably each time the measuring device is restarted.

[0043] The lengths of the first and second top plates are greater than the lengths of the first and second folding rods, so that when the first top plate drives the first folding rod in the working section, or when the second top plate drives the second folding rod in the working section, the first top plate can engage with the top pin of the first folding rod in real time, or the second top plate can engage with the top pin of the second folding rod in real time. This ensures that the first and second top plates can exert force in the working section. Figure 2-3 As shown, the contact position between the first or second top plate and the top pin will change during actual operation. In other words, the measuring rod will undergo displacement perpendicular to the extension or folding direction during the extension or folding process, and this displacement is approximately equal to the length of the first or second folding rod. This enables the device of the present invention to also have the function of detecting the quality of holes.

[0044] In at least one embodiment, the device further includes a disengagement unit and a locking unit disposed at the connection between the first folding rod and the second folding rod. The locking unit includes a locking pin slidably disposed on the first folding rod, and a corresponding locking hole on the second folding rod for the locking pin to be inserted. A spring is provided between the inner end of the locking pin and the first folding rod. When both the first folding rod and the second folding rod swing to near vertical position, the locking pin aligns with the locking hole. At this time, the locking pin is inserted into the locking hole under the action of the spring, thereby locking and fixing the first folding rod and the second folding rod, preventing relative rotation. The locking unit enables the measuring rod to extend stably upward.

[0045] The disengagement unit includes an electromagnet disposed on the inner wall of the measuring box and opposite the outer end of the locking pin. A permanent magnet is provided at the outer end of the locking pin. The electromagnet is configured such that when the measuring rod is retracted, the electromagnet repels the locking pin at its end facing the locking pin, overcoming spring resistance and disengaging the locking pin from the locking hole. All first folding rods are located on the same side, while all 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 second folding rod. When the measuring rod needs to be folded after the measurement is completed, the electromagnet is activated and repels the outer end of the locking pin (the end of the locking pin near the locking hole is the outer end, and the part of the locking pin near the spring is the inner end), causing the locking pin to overcome the spring force and slide out of the locking hole. The conveyor belt rotates in the opposite direction, and 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 have an angle of 1°-2° with the extension direction of the measuring rod when they are extended. This makes it easier for the first top plate and the second top plate to apply force when the measuring rod is folded, which greatly improves the reliability, stability and efficiency of the entire device.

[0046] In at least one embodiment, a hydraulic lifting platform fixed to a base is also included. One end of the measuring box is hinged to the hydraulic lifting platform. The hydraulic lifting platform facilitates the adjustment of the starting height of the entire measuring box, which is crucial 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 hinged to the hydraulic lifting platform via a telescopic rod. The telescopic rod includes a left-hand threaded rod and a threaded sleeve, one end of which is hinged to the hydraulic lifting platform, and a right-hand threaded rod, the other end of which is hinged to the measuring box. The other ends of the left-hand and right-hand threaded rods are threadedly connected to the threaded sleeve. With this configuration, when the threaded sleeve is rotated in the forward direction, the left-hand and right-hand threaded rods move towards each other, the length of the telescopic rod decreases, and the tilt angle of the measuring box decreases. Conversely, when the threaded sleeve is rotated in the reverse direction, the left-hand and right-hand threaded rods move in opposite directions, the length of the telescopic rod increases, and the tilt angle of the measuring box increases. This telescopic rod configuration enables the adjustment of the angle of the measuring box and the measuring rod, thereby facilitating the measurement of hole depth data at the top of the tunnel from various angles.

[0047] This invention also provides a method for rapid detection of borehole depth data. This method is based on the apparatus described above and includes the following steps:

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

[0049] Step 2: Start the conveyor belt to rotate in the forward direction. The first and second top plates will drive the first and second folding rods to extend respectively. The measuring rod will drive the measuring rope to rise continuously until the measuring rod touches the deepest part of the hole at the top of the tunnel. At this time, stop the conveyor belt, tighten the measuring rope, and read the reading when the measuring rope is flush with the bottom of the hole at the top of the tunnel. This is the hole depth.

[0050] Step 3: Start the conveyor belt to rotate in the reverse direction. The first top plate and the second top plate will drive the first folding rod and the second folding rod to fold respectively. The measuring rod will drive the measuring rope to continuously decrease in height until the measuring rod returns to its initial state. At this point, stop the conveyor belt.

[0051] In summary, (1) the device of the present invention is suitable for measuring the hole depth data at the top of the tunnel. 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 as to obtain the hole depth data quickly and accurately. At the same time, the measuring rod can be quickly folded after obtaining the hole depth data. Moreover, 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.

[0052] (2) Moreover, the device of the present invention can be easily and quickly folded, which is even more advantageous in the narrow space of a tunnel when long and large measuring tools cannot be used directly.

[0053] Although the methods described above are illustrated and depicted as a series of actions for the sake of simplicity, it should be understood and appreciated that these methods are not limited by the order of the actions, as some actions may occur in a different order and / or concurrently with other actions from the illustrations and descriptions herein or not illustrated and described herein but which may be understood by those skilled in the art, according to one or more embodiments. 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 both. To clearly illustrate this interchangeability between hardware and software, the various illustrative components, blocks, modules, circuits, and steps are described above in a generalized form 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. Those skilled in the art may implement the described functionality in different ways for each particular application, but such implementation decisions should not be construed as departing from the scope of the invention.

[0054] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A rapid hole depth data detection device, characterized in that, include: Base; 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 measuring rod includes several first folding rods and second folding rods arranged opposite each other. The first folding rods and second folding rods are connected by staggered vertical rotation. The top of the measuring rope is fixed at the top of the measuring rod. The top plate unit includes two sets of conveyor belts vertically arranged on both sides of the measuring rod. 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 belts. It also includes a hydraulic lifting platform fixed to the base, with one end of the measuring box hinged to the hydraulic lifting platform and the other end of the measuring box hinged to the hydraulic lifting platform via a telescopic rod. The telescopic rod includes a left-hand threaded rod and a threaded sleeve, one end of which is hinged to the hydraulic lifting platform, and a right-hand threaded rod, one end of which is hinged to the measuring box. The other ends of the left-hand threaded rod and the right-hand threaded rod are both threadedly connected to the threaded sleeve. Both the first folding rod and the second folding rod have top pins on their outer sides, which are driven by the first top plate and the second top plate, respectively. The first and second roof slabs are configured as follows: When the second top plate disengages 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 disengages 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. It also includes a disengagement unit and a locking unit located at the connection between the first folding rod and the second folding rod. The locking unit includes a locking pin located on the first folding rod and a corresponding locking hole on the second folding rod for the locking pin to be inserted. A spring is provided between the inner end of the locking pin and the first folding rod. The release unit includes an electromagnet disposed 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 such that when the measuring rod is retracted, the electromagnet repels the locking pin at the end facing the locking pin and overcomes the spring resistance, causing the locking pin to disengage from the locking hole. The first folding rod has a through hole for the measuring rope to pass through.

2. The rapid hole depth data detection device according to claim 1, characterized in that, Both the first and second folding rods are U-shaped.

3. The rapid hole depth data detection device according to claim 1, characterized in that, The base is equipped with wheels at the bottom and handles on the sides.

4. A method for rapid detection of borehole depth data, characterized in that, This method, based on the apparatus described in any one of claims 1-3, includes the following steps. Step 1: Move the base and measuring mechanism below the opening at the top of the tunnel; Step 2: Start the conveyor belt to rotate in the forward direction. The first and second top plates will drive the first and second folding rods to extend respectively. The measuring rod will drive the measuring rope to rise continuously until the measuring rod touches the deepest part of the hole at the top of the tunnel. At this time, stop the conveyor belt, tighten the measuring rope, and read the reading when the measuring rope is flush with the bottom of the hole at the top of the tunnel. This is the hole depth. Step 3: Start the conveyor belt to rotate in the reverse direction. The first top plate and the second top plate will drive the first folding rod and the second folding rod to fold respectively. The measuring rod will drive the measuring rope to continuously decrease in height until the measuring rod returns to its initial state. At this point, stop the conveyor belt.

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