Detachable assembly recycling water-containing borehole charging device and charging method

Abstract

The application belongs to the technical field of engineering blasting, and particularly relates to a detachable and recyclable water-containing blast hole charging device and a charging method. The detachable and recyclable water-containing blast hole charging device comprises a baffle assembly, a cylinder, a first connecting piece and a second connecting piece. The cylinder comprises an inner cylinder and an outer cylinder. The outer cylinder is sleeved on the inner cylinder. The end portions of the inner cylinder and the outer cylinder on the same side are provided with arc-shaped connecting blocks. The arc-shaped connecting blocks are provided with arc-shaped grooves in the direction of the axis of the cylinder. The arc-shaped grooves are provided with arc-shaped protrusions. The arc-shaped connecting block of one cylinder is inserted into the arc-shaped positioning groove of another cylinder to rotate the arc-shaped protrusions into the arc-shaped grooves, so as to sequentially connect the adjacent cylinders. The baffle assembly is rotatably arranged at the end portion of the outer cylinder of the first cylinder. The detachable and recyclable water-containing blast hole charging device can be repeatedly used and easily disassembled, so as to reduce the use cost and improve the efficiency of explosive installation.

Description

Technical Field

[0001] This invention belongs to the field of engineering blasting technology, and specifically relates to a detachable, reusable, and recyclable charging device and method for water-bearing blast holes. Background Technology

[0002] Drill-and-blast method refers to a construction technique that uses mechanical drilling, filling the holes with explosives, and then blasting to break up the rock mass. Due to its advantages of strong adaptability, flexible construction, and controllable cost, it is widely used in various engineering fields such as water conservancy and hydropower, mining, transportation, and underground space development. During construction, if the site is adjacent to rivers, lakes, or other bodies of water, the water-conducting properties of the rock joints and fissures can easily lead to water accumulation in the blast holes. Furthermore, due to complex hydrogeological conditions, surface water infiltration, underground water inflow, penetration of aquifers, and flow of confined water or fissure water can all cause water accumulation in the blast holes. Additionally, constraints imposed by construction techniques and climatic conditions can also lead to water accumulation in the blast holes. Water in blast holes not only hinders explosive loading, causing the explosive charge to sink poorly or become suspended, reducing construction efficiency and increasing project costs, but also leads to poor rock fragmentation and low energy utilization due to inadequate loading and insufficient sealing. This seriously restricts the construction safety and operational stability of the drill-and-blast method. Therefore, researching detachable, reusable, and recyclable charging devices and methods for water-bearing blast holes is of great significance for the green, environmentally friendly, safe, reliable, and efficient development of engineering blasting technology.

[0003] Chinese invention patent CN112129185A discloses a charging device and method for water-bearing boreholes, providing a counterweight sleeve charging device with internal protrusions and gaps filled with highly absorbent polymer. However, during manufacturing, the sleeve charging device contains internal protrusions, making it unusable after charging. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, embodiments of the present invention propose a detachable, reusable water-containing borehole charging device that can be reused and is easy to disassemble, thereby reducing usage costs and improving the efficiency of explosive installation.

[0006] This detachable, reusable, and recyclable water-bearing borehole charging device is characterized by comprising: The cylindrical body includes an inner cylinder and an outer cylinder, with the outer cylinder fitted onto the inner cylinder. Both the inner and outer cylinders have arc-shaped connecting blocks on the same side of their ends. Each arc-shaped connecting block has an arc-shaped groove facing the axis of the cylindrical body. Both the inner and outer cylinders also have arc-shaped positioning grooves on the same side of their ends, with arc-shaped protrusions within these grooves. Furthermore, the arc-shaped groove is provided with an arc-shaped protrusion. The arc-shaped connecting block of one cylinder extends into the arc-shaped positioning groove of the other cylinder and rotates to make the arc-shaped protrusion rotate into the arc-shaped groove, thereby connecting the adjacent cylinders in sequence. A baffle assembly is rotatably disposed at the end of the outer cylinder of the first section of the cylinder away from the adjacent cylinder, and there are multiple baffle assemblies, which are spaced apart in the circumferential direction of the outer cylinder; A first connector and a second connector are provided. The first connector is disposed at the end of the baffle assembly facing the inner wall of the inner cylinder, and the second connector is disposed on the inner cylinder. The baffle assembly has a first state and a second state. In the first state, the first connector and the second connector are connected so that the plurality of baffle assemblies are close to or in contact with each other. In the second state, the inner cylinder moves upward along the cylinder axis to separate the first connector and the second connector, thereby moving the plurality of baffle assemblies away from each other.

[0007] The detachable and reusable water-containing borehole charging device of the present invention can be reused and is easy to disassemble, reducing the cost of use and improving the efficiency of explosive installation.

[0008] In some embodiments, the outer cylinder of the first section has a groove extending along the cylinder, and the outer circumferential surface of the inner cylinder has a protrusion extending along the cylinder, the protrusion being disposed within the groove.

[0009] In some embodiments, the outer cylinder of the first section of the cylinder has multiple grooves, which are spaced apart in the circumferential direction of the cylinder. The inner cylinder has multiple protrusions, which are spaced apart in the circumferential direction of the inner cylinder. The multiple grooves correspond one-to-one with the multiple protrusions.

[0010] In some embodiments, the baffle assembly includes a long plate, a short plate, and a pivot, wherein the short plate and the long plate are connected, a first connector is provided at the end of the short plate away from the long plate, and a pivot is provided at the connection point between the long plate and the short plate. The first connector is a male fastener, and the second connector is a female fastener, and the male fastener and the female fastener are detachably connected.

[0011] In some embodiments, the detachable, reusable water-bearing borehole charging device further includes a strap disposed on the inner wall of the tail section.

[0012] In some embodiments, the radial dimension of the outer wall surface of the inner cylinder is smaller than the radial dimension of the inner wall surface of the outer cylinder, and the difference between the radial dimension of the outer wall surface of the inner cylinder and the radial dimension of the inner wall surface of the outer cylinder is 2mm to 8mm.

[0013] In some embodiments, the outer and inner cylinders of the first section are both made of conductive modified rigid PVC with a density of 1.38~1.45 g / cm³. 3 .

[0014] In some embodiments, the outer cylinder has a wall thickness of 4mm to 6mm, and the inner cylinder has a wall thickness of 2mm to 3.5mm.

[0015] In some embodiments, the axial length of the inner cylinder of the tail section is greater than the axial length of the outer cylinder of the tail section.

[0016] The charging method of this invention, utilizing the detachable, reusable, water-bearing borehole charging device described above, includes: The baffle assembly is disposed in the first section of the cylinder, and the first connector and the second connector are detachably connected; Multiple cylinders are connected in sequence and loaded into an explosive charge, with straps attached to the tail of the explosive charge. Insert the charging device into the borehole. When the charging device reaches the preset position, pull the inner cylinder to move the inner cylinder upward while keeping the outer cylinder unchanged, so that the explosive charge moves downward to separate the first connecting piece and the second connecting piece. Remove the propellant charging device from the borehole.

[0017] The explosive loading method of the present invention can be reused and is easy to disassemble, reducing usage costs and improving the efficiency of explosive loading. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a detachable, reusable, and recyclable water-bearing borehole charging device according to an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the baffle assembly according to an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the cylinder according to an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the strap according to an embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the inner cylinder according to an embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of the outer cylinder according to an embodiment of the present invention.

[0024] Figure label: Cylinder 1, Inner Cylinder 11, Outer Cylinder 12, Arc-shaped Connecting Block 13, Arc-shaped Groove 131, Arc-shaped Positioning Groove 14, Arc-shaped Protrusion 15, Groove 16, Protrusion 17. Baffle assembly 2, long plate 21, short plate 22, First connector 3, strap 4. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] The detachable, reusable, and recyclable water-bearing borehole charging device according to an embodiment of the present invention includes: Cylinder 1, baffle assembly 2, first connector 3, and second connector, as shown Figure 5 and Figure 6 As shown, the cylinder 1 includes an inner cylinder 11 and an outer cylinder 12. The outer cylinder 12 is sleeved on the inner cylinder 11. Both the inner cylinder 11 and the outer cylinder 12 have arc-shaped connecting blocks 13 on the same side. The arc-shaped connecting blocks 13 have arc-shaped grooves 131 facing the axis of the cylinder 1. Both the inner cylinder 11 and the outer cylinder 12 have arc-shaped positioning grooves 14 on the same side. The arc-shaped positioning grooves 14 have arc-shaped protrusions 15 within them. Furthermore, the arc groove is provided with an arc protrusion 15. The arc connecting block 13 of one cylinder 1 extends into the arc positioning groove 14 of another cylinder 1 and rotates to make the arc protrusion 15 rotate into the arc groove 131, thereby connecting the adjacent cylinders 1 in sequence. Baffle assembly 2 is rotatably disposed at the end of the outer cylinder 12 of the first section 1 away from the adjacent cylinder 1, and there are multiple baffle assemblies 2, which are spaced apart in the circumferential direction of the outer cylinder 12. A first connecting member 3 is disposed at the end of the baffle assembly 2 facing the inner wall surface of the inner cylinder 11, and a second connecting member is disposed on the inner cylinder 11. The baffle assembly 2 has a first state and a second state. In the first state, the first connecting member 3 and the second connecting member are connected so that the multiple baffle assemblies 2 are close to or in contact with each other. In the second state, the inner cylinder 11 moves upward along the cylinder 1 axis to separate the first connector 3 and the second connector, so that the multiple baffle assemblies 2 are moved away from each other.

[0027] The detachable and reusable water-containing borehole charging device of the present invention can be reused and is easy to disassemble, reducing the cost of use and improving the efficiency of explosive installation.

[0028] Specifically, such as Figures 1 to 6 As shown, for ease of description, the extension direction of the cylinder 1 is set as the front-back direction, that is, the axial direction of the cylinder 1 is the front-back direction.

[0029] The baffle assembly 2 is rotatably mounted on the front end face of the outer cylinder 12 of the first section of the cylinder 1, i.e., the foremost cylinder 1. The first connecting member 3 is located at the end of the baffle assembly 2 facing the inner wall of the inner cylinder 11 of the first section of the cylinder 1. The second connecting member is located on the inner cylinder 11 of the first section of the cylinder 1. When the front ends of the baffle assemblies 2 are close to or in contact with each other, the first connecting member 3 and the second connecting member are detachably connected. When the moving device reaches the preset loading position, the explosive charge in the inner cylinder 11 is filled with material. After filling is completed. When it is necessary to disassemble the explosive charge loaded and unloaded in the inner cylinder 11, the inner cylinder 11 of the tail section is pulled upward. At this time, since the explosive charge in the inner cylinder 11 is not connected to the inner cylinder 11 and there is a certain gap between the explosive charge and the inner cylinder 11, the inner cylinder 11 of the tail section drives all the other inner cylinders 11 to move. The first connecting piece 3 and the second connecting piece separate. At this time, the explosive charge is separated from the cylinder 1 of the first section or from the device and flows into the borehole. Then, the entire inner cylinder 11 and outer cylinder 12 are moved out of the borehole. At this time, the installation of the explosive charge is completed.

[0030] The connection and disassembly of multiple cylinders 1 are as follows: the arc-shaped protrusion 15 of the outer cylinder 12 of the front cylinder 1 extends into the arc-shaped positioning groove 14 of the outer cylinder 12 of the rear cylinder 1, and the arc-shaped protrusion 15 of the inner cylinder 11 of the front cylinder 1 extends into the arc-shaped positioning groove 14 of the inner cylinder 11 of the rear cylinder 1. Then rotate to make the arc-shaped protrusion 15 extend into the arc-shaped groove 131, thereby completing the connection of the front and rear cylinders 1. Then connect multiple cylinders 1 in sequence. When disassembly is required, reverse one of the cylinders 1 to make the arc-shaped protrusion 15 leave the arc-shaped groove 131, then separate the front and rear cylinders 1, and finally separate multiple cylinders 1 one by one.

[0031] The detachable and reusable water-bearing borehole charging device of this invention, through the split structure of the inner and outer cylinders 12 and the arc-shaped buckle connection design, realizes modular quick assembly and disassembly of the cylinder 1 and reuse, significantly reducing construction costs. At the same time, by utilizing the control mechanism of the axial displacement linkage baffle assembly 2 of the inner cylinder 11, the baffle is brought together to form a stable support during charging, and the baffle is separated during disassembly to allow the explosive charge to be smoothly released, simplifying the charging process of water-bearing boreholes and improving installation reliability. In addition, the device adapts to different hole depths by adjusting the number of cylinder sections 1, and with the precise positioning and sealing structure, it effectively solves the problems of explosive charges being easily suspended and floating, ensuring that the charge is in place and the seal is tight, thereby enhancing the blasting effect, improving the energy utilization rate of explosives, reducing usage costs, and improving the efficiency of installation and disassembly.

[0032] In some embodiments, the outer cylinder 12 of the first section cylinder 1 has a groove 16 extending along the cylinder 1, and the outer peripheral surface of the inner cylinder 11 has a protrusion 17 extending along the cylinder 1, the protrusion 17 being disposed within the groove 16.

[0033] Specifically, such as Figures 1 to 6 As shown, the outer cylinder 12 of the first section of the cylinder 1 is provided with a groove 16 extending in the front-back direction, and the outer circumferential surface of the inner cylinder 11 of the first section of the cylinder 1 is provided with a protrusion 17 extending in the front-back direction. When the moving device reaches the preset loading position and the explosive device needs to be removed, the explosive package in the inner cylinder 11 is first filled with material. After filling is completed. Then, the inner cylinder 11 of the tail section is pulled upward, causing multiple inner cylinders 11 to move relative to the outer cylinder 12. Then, the inner cylinder 11 of the first section moves upward under the guidance of the protrusion 17 and the groove 16. At this time, the explosive charge in the inner cylinder 11 is not connected to the inner cylinder 11, and there is a certain gap between the explosive charge and the inner cylinder 11. At this time, the inner cylinder 11 of the tail section drives all the other inner cylinders 11 to move. The first connecting piece 3 and the second connecting piece separate. At this time, the explosive charge is separated from the cylinder 1 of the first section or from the device and flows into the borehole. Then, the entire inner cylinder 11 and outer cylinder 12 are moved out of the borehole, and the separation of the explosive charge and the explosive device and the installation of the explosive charge in the borehole are completed.

[0034] Furthermore, the outer cylinder 12 of the first section of the cylinder 1 has multiple grooves 16, which are spaced apart in the circumferential direction of the cylinder 1. The inner cylinder 11 has multiple protrusions 17, which are spaced apart in the circumferential direction of the inner cylinder 11. The multiple grooves 16 correspond one-to-one with the multiple protrusions 17, thereby improving the stability of the inner cylinder 11 of the first section moving upward under the guidance of the protrusions 17 and the grooves 16.

[0035] In some embodiments, the baffle assembly 2 includes a long plate 21, a short plate 22, and a rotating shaft. The short plate 22 is connected to the long plate 21, and a first connector 3 is provided at the end of the short plate 22 away from the long plate 21. A rotating shaft is provided at the connection between the long plate 21 and the short plate 22. The first connector 3 is a male fastener, and the second connector is a female fastener. The male fastener and the female fastener are detachably connected.

[0036] Specifically, such as Figures 1 to 6 As shown, the first connector 3 and the second connector can be existing snap fasteners. The male and female fasteners snap together, and the inner cylinder 11 of the tail section drives all the other inner cylinders 11 to move. The first connector 3 of the baffle assembly 2 and the second connector of the inner cylinder 11 of the first section separate.

[0037] Multiple long plates 21 are brought close together at the ends away from the short plates 22 to restrict the explosive charge from detaching from the loading device. When the inner cylinder 11 of the tail section is pulled upward, the explosive charge impacts the short plates 22 to separate the long plates 21 from each other, thereby facilitating the opening of the front outlet of the inner cylinder 11 of the first section to unload the explosive charge.

[0038] This embodiment utilizes the engagement of the male and female fasteners to provide a reliable and stable locking force for the baffle assembly 2 during the loading process, ensuring that the explosive charge is firmly supported and will not be suspended due to buoyancy or vibration. After loading is completed, simply pulling the inner cylinder 11 to generate axial displacement allows the male and female fasteners to separate instantly, triggering all baffles to open synchronously, enabling the explosive charge to be automatically and smoothly released. This purely mechanical operation not only completely avoids the risk of failure of electrical or pneumatic components in a water-bearing environment but also simplifies the two core processes of loading and unloading into a single linear operation, significantly improving construction efficiency and reliability. Furthermore, the four-way fastener, as a standard component, is low-cost and easy to replace, effectively reducing the maintenance difficulty and recycling costs of the device, enabling the entire system to possess high reliability, ease of operation, and economy even under complex hydrogeological conditions.

[0039] In some embodiments, the detachable and reusable water-containing borehole charging device further includes a strap 4, which is disposed on the inner wall surface of the inner cylinder 11 of the tail section.

[0040] Specifically, such as Figures 1 to 6 As shown, the binding strap 4 is set on the inner wall of the inner cylinder 11 of the tail section. The fixing binding strap 4 on the upper inner side of the inner cylinder 11 of the tail section is used to bind the topmost explosive charge in the explosive charging device to form a loop structure. After the explosive charging device and explosive charge are completed in the water-bearing blast hole, the inner cylinder 11 is lifted to unlock the baffle assembly 2, thereby recovering and recycling the explosive charging device.

[0041] When the inner cylinder 11 is lifted to unlock the baffle assembly 2 for recycling the loading device, the strap 4 will naturally detach from the top of the medicine bag, without affecting the recycling of the loading device.

[0042] In some embodiments, the radial dimension of the outer wall surface of the inner cylinder 11 is smaller than the radial dimension of the inner wall surface of the outer cylinder 12, and the difference between the radial dimension of the outer wall surface of the inner cylinder 11 and the radial dimension of the inner wall surface of the outer cylinder 12 is 2mm to 8mm.

[0043] This invention provides ample space for the smooth axial sliding of the inner cylinder 11 by pre-reserving a radial gap of 2mm to 8mm between the outer wall of the inner cylinder 11 and the inner wall of the outer cylinder 12. This ensures that the operator can respond flexibly when pulling the last section of the inner cylinder 11 and that the male and female fasteners can be reliably separated. Simultaneously, it effectively limits the radial offset and swaying of the inner cylinder 11 and outer cylinder 12 during the lowering of the borehole and the loading of explosives, avoiding coaxiality deviations or explosive pack jamming caused by excessive gaps. This allows the cylinder 1 to maintain both responsiveness and structural stability while reducing manufacturing difficulty and cost. Combined with the quick locking and unlocking of the male and female fasteners, the convenient operation of the straps 4, and the modular disassembly and assembly structure of the arc-shaped buckles, the entire device achieves efficient operation throughout the entire process—stable support for explosive loading, smooth unloading, and reusability of the cylinder 1—in complex environments such as water-bearing boreholes, improving the safety, reliability, and economy of drilling and blasting operations.

[0044] Furthermore, both the outer cylinder 12 and the inner cylinder 11 of the first section 1 are made of conductive modified rigid PVC with a density of 1.38~1.45 g / cm³. 3 This ensures that the overall sleeve seal is greater than the water level, thereby accelerating the sinking speed of the explosive charge and improving construction efficiency.

[0045] In some embodiments, the outer cylinder 12 has a wall thickness of 4mm to 6mm, and the inner cylinder 11 has a wall thickness of 2mm to 3.5mm.

[0046] This invention achieves an optimal balance between structural strength and lightweight by setting the wall thickness of the outer cylinder 12 to 4mm~6mm and the inner cylinder 11 to 2mm~3.5mm. The outer cylinder 12 has a thicker wall to withstand the lateral pressure of the rock in the borehole and the radial extrusion force during the charging process, ensuring that the cylinder 1 has sufficient resistance to deformation and structural durability during repeated assembly and disassembly. The inner cylinder 11 has a thinner wall, which effectively reduces the overall weight of the device while ensuring the rigidity required to support the explosive charge, making it easier for operators to pull the last section of the inner cylinder 11, and reducing material consumption and manufacturing costs. This wall thickness range, combined with the radial clearance of the inner cylinder 11 to the outer cylinder 12 of 2mm~8mm, provides smooth motion redundancy for the axial sliding of the inner cylinder 11, while avoiding the cumbersome device caused by excessive wall thickness or the sliding jamming caused by insufficient clearance.

[0047] In some embodiments, the axial length of the inner cylinder 11 of the tail section cylinder 1 is greater than the axial length of the outer cylinder 12 of the tail section cylinder 1. This is to facilitate the separation of the first connector 3 and the second connector when the inner cylinder 11 is pulled at the end.

[0048] The charging method of this invention, utilizing the above-described detachable, reusable, water-bearing borehole charging device, includes: The baffle assembly 2 is installed in the first section of the cylinder 1, and the first connector 3 and the second connector are detachably connected; Multiple cylinders 1 are connected in sequence and loaded into explosive charges, with straps 4 attached to the tail of the explosive charges. The charging device is inserted into the borehole. When the charging device reaches the preset position, the inner cylinder 11 is pulled up to move the inner cylinder 11 upward while keeping the outer cylinder 12 unchanged, so that the explosive pack moves down to separate the first connecting piece 3 and the second connecting piece. Remove the propellant charging device from the borehole.

[0049] The charging method provided by this invention involves pre-positioning the baffle assembly 2 in the first section of the cylinder 1 and fastening the male and female fasteners to form a bottom support. Then, multiple cylinders 1 are connected in sequence and the explosive charge is loaded into them. At the same time, the tail of the explosive charge is secured with straps 4. The assembled device is then lowered to a preset position in the borehole. Once in place, the operator pulls the inner cylinder 11 upward while the outer cylinder 12 remains stationary. Under the action of gravity, the explosive charge moves downward relative to the cylinder 1, forcing the male and female fasteners to separate. All baffles open simultaneously, and the explosive charge is automatically and accurately released and left at the bottom of the borehole. Finally, the entire set of cylinders 1 (including the inner cylinder 11, the outer cylinder 12, and the baffle assembly 2) is removed to achieve recycling. This charging method transforms the complex unloading operation inside the borehole into an assembly operation completed on the ground and a simple pulling action inside the borehole. This avoids the risks of direct human intervention at the borehole opening or inside the borehole. At the same time, by moving the inner cylinder 11 relative to the outer cylinder 12 during the installation of the explosive charge, the triggering and reliable execution of the explosive charge release action are ensured. Combined with the modular disassembly and assembly of the cylinder 1 using arc-shaped buckles, the convenient operation of the straps 4, and the optimized matching of the gap and wall thickness between the inner cylinder 11 and the outer cylinder 12, the entire method achieves a highly efficient operation throughout the entire process in the complex environment of water-bearing boreholes, ensuring stable charging, smooth unloading, and reusable cylinder 1. This improves the safety, construction efficiency, and engineering economy of drilling and blasting operations.

[0050] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0053] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0054] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0055] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A detachable, reusable, water-bearing borehole charging device, characterized in that, include: The cylindrical body includes an inner cylinder and an outer cylinder, with the outer cylinder fitted onto the inner cylinder. Both the inner and outer cylinders have arc-shaped connecting blocks on the same side of their ends. Each arc-shaped connecting block has an arc-shaped groove facing the axis of the cylindrical body. Both the inner and outer cylinders also have arc-shaped positioning grooves on the same side of their ends, with arc-shaped protrusions within these grooves. Furthermore, the arc-shaped groove is provided with an arc-shaped protrusion. The arc-shaped connecting block of one cylinder extends into the arc-shaped positioning groove of the other cylinder and rotates to make the arc-shaped protrusion rotate into the arc-shaped groove, thereby connecting the adjacent cylinders in sequence. A baffle assembly is rotatably disposed at the end of the outer cylinder of the first section of the cylinder away from the adjacent cylinder, and there are multiple baffle assemblies, which are spaced apart in the circumferential direction of the outer cylinder; A first connector and a second connector are provided. The first connector is disposed at the end of the baffle assembly facing the inner wall of the inner cylinder, and the second connector is disposed on the inner cylinder. The baffle assembly has a first state and a second state. In the first state, the first connector and the second connector are connected so that the plurality of baffle assemblies are close to or in contact with each other. In the second state, the inner cylinder moves upward along the cylinder axis to separate the first connector and the second connector, thereby moving the plurality of baffle assemblies away from each other.

2. The detachable, reusable, water-bearing borehole charging device according to claim 1, characterized in that, The outer cylinder of the first section has a groove extending along the cylinder body, and the outer circumferential surface of the inner cylinder has a protrusion extending along the cylinder body, the protrusion being disposed within the groove.

3. The detachable, reusable, water-bearing borehole charging device according to claim 1, characterized in that, The outer cylinder of the first section has multiple grooves, which are spaced apart in the circumferential direction of the cylinder. The inner cylinder has multiple protrusions, which are also spaced apart in the circumferential direction of the inner cylinder. Each groove corresponds to one of the protrusions.

4. The detachable, reusable, water-bearing borehole charging device according to claim 1, characterized in that, The baffle assembly includes a long plate, a short plate, and a rotating shaft. The short plate and the long plate are connected. A first connecting member is provided at the end of the short plate away from the long plate. A rotating shaft is provided at the connection point between the long plate and the short plate. The first connector is a male fastener, and the second connector is a female fastener, and the male fastener and the female fastener are detachably connected.

5. The detachable, reusable, water-bearing borehole charging device according to claim 1, characterized in that, It also includes straps, which are disposed on the inner wall of the tail section.

6. The detachable, reusable, water-bearing borehole charging device according to claim 1, characterized in that, The radial dimension of the outer wall of the inner cylinder is smaller than the radial dimension of the inner wall of the outer cylinder, and the difference between the radial dimension of the outer wall of the inner cylinder and the radial dimension of the inner wall of the outer cylinder is 2mm to 8mm.

7. The detachable, reusable, water-bearing borehole charging device according to claim 1, characterized in that, The outer and inner cylinders of the first section are both made of conductive modified rigid PVC with a density of 1.38~1.45 g / cm³. 3 .

8. The detachable, reusable, water-bearing borehole charging device according to claim 1, characterized in that, The outer cylinder has a wall thickness of 4mm to 6mm, and the inner cylinder has a wall thickness of 2mm to 3.5mm.

9. The detachable, reusable, water-bearing borehole charging device according to claim 1, characterized in that, The axial length of the inner cylinder of the tail section is greater than the axial length of the outer cylinder of the tail section.

10. A method for charging explosives, utilizing the detachable, reusable, water-bearing borehole charging device as described in any one of claims 1-9, characterized in that, include: The baffle assembly is disposed in the first section of the cylinder, and the first connector and the second connector are detachably connected; Multiple cylinders are connected in sequence and loaded into an explosive charge, with straps attached to the tail of the explosive charge. Insert the charging device into the borehole. When the charging device reaches the preset position, pull the inner cylinder to move the inner cylinder upward while keeping the outer cylinder unchanged, so that the explosive charge moves downward to separate the first connecting piece and the second connecting piece. Remove the propellant charging device from the borehole.

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