A telescoping device for blasting

Abstract

This invention discloses a telescopic device for blasting, relating to the technical field of blasting support equipment in underground mining. The telescopic device includes a telescopic section and a support section. The movable end of the telescopic section is used to abut against the blasting point and mount an explosive charge. The fixed end of the telescopic section is connected to the support section at an adjustable angle via a rotating mechanism. The support section is used to support the device on the ground. After being connected to the telescopic section via the rotating mechanism, the support section is placed on the ground. The telescopic section is supported by the support section, and the angle between the support section and the telescopic section is adjustable, allowing the telescopic device to adapt to different working conditions and facilitating the use of the telescopic device to support the explosive charge.

Description

Technical Field

[0001] This invention relates to the field of underground mining blasting support equipment technology, and in particular to a telescopic device for blasting. Background Technology

[0002] In natural caving mining operations, underground ore accumulation channels are prone to arching due to the compression of large ore blocks, leading to ore blockage and severely restricting the efficiency of normal ore transfer operations. Currently, the industry mainly uses blasting to deal with ore accumulation channel blockages. The conventional operation involves operators using long bamboo poles as support components, fixing explosives to the ends of the poles, manually lifting the poles to the location of the blockage to complete the loading and placement of the explosives, and relying on the blasting force to break the ore arch and clear the passage.

[0003] The traditional bamboo pole-supported explosive loading operation method has many inherent technical defects. First, the long pole with explosives at the end forms a lever structure, resulting in a heavy load and high labor intensity for manual lifting. Second, to meet the requirements of shear resistance, the bamboo pole needs to have a larger outer diameter, which increases the weight of the pole and further increases the difficulty of operation. Third, the stability of the manual lifting process is poor, and the pole is prone to swaying and shifting, which can easily cause the explosives with detonators to fall off, greatly increasing the risk of explosion accidents and highlighting the safety risks of underground operations.

[0004] Meanwhile, conventional bamboo poles have a fixed length and cannot be flexibly adjusted to suit the actual height of the blockage. Existing tools cannot simultaneously ensure operational safety, ease of use, and adaptability to different working conditions, making it difficult to meet the production needs of routine blasting and clearing of blockages in underground mining trenches. Therefore, there is an urgent need for a charging support device that can replace traditional bamboo poles, has an adjustable length, and is compatible with the explosive consumption of a single blast, possessing both practical necessity and technological research and development value. Summary of the Invention

[0005] The purpose of this invention is to solve the above-mentioned technical problems and provide a telescopic device for blasting. The telescopic device supports the explosive charge. One end of the telescopic device is in contact with the ground, and the other end is connected to the explosive charge and then in contact with the inner wall of the mine. The telescopic device can be bent so that the grounded end of the telescopic device is always perpendicular to the ground and in contact with the ground, thereby improving the stability of the device.

[0006] To achieve the above objectives, the present invention provides the following solution: a telescopic device for blasting, comprising a telescopic part and a supporting part, wherein the movable end of the telescopic part is used to abut against the blasting point and install an explosive charge; the fixed end of the telescopic part is connected to the supporting part at an adjustable angle via an angle-adjustable mechanism, and the supporting part is used to support the device on the ground.

[0007] Preferably, the telescopic part includes an inner rod and an outer rod, one end of the inner rod is inserted into the sliding space inside the outer rod, and the inner rod can telescopically slide relative to the outer rod within the sliding space, and the other end of the inner rod is a movable end; the end of the outer rod away from the inner rod is a fixed end.

[0008] Preferably, the telescopic part further includes a drive assembly and a rope, the drive assembly being fixedly connected to the outer rod, one end of the rope being connected to the drive assembly, and the other end of the rope extending into the sliding space and being fixedly connected to the inner rod.

[0009] Preferably, the drive assembly further includes a pulley assembly located on the outer rod near one end of the inner rod and fixedly connected to the outer rod, and the rope forms a sliding engagement with the pulley assembly.

[0010] Preferably, the pulley assembly includes a first pulley and a second pulley, the first pulley and the second pulley are arranged in a straight line, one end of the rope used to connect the inner rod passes through the first pulley and then the second pulley, and is finally fixedly connected to the inner rod, the portion of the rope connecting the drive assembly and passing through the first pulley is parallel to the portion of the rope connecting the inner rod and passing through the second pulley.

[0011] Preferably, the adjustable angle mechanism includes a cup-shaped connector, a ball head bolt, a ball socket, a fastener, a main base, a columnar base, and a bracket connector; The inner wall of the cup-shaped connector is threaded. The ball head bolt includes a screw part and a ball head. The outer wall of the screw part is threaded. The thread of the screw part corresponds to the thread of the cup-shaped connector. The outer side of the outer rod, which is used to hinge with the support frame, is also threaded. The thread of the outer rod corresponds to the thread of the cup-shaped connector. The cup-shaped connector is threaded and fitted onto the outer side of the screw part and the outer side of the outer rod. The main base has a groove for supporting the ball head at one end near the ball head bolt. The ball socket has a first insertion hole on the side away from the ball head. The main base has a first insertion block adapted to the first insertion hole at one end near the ball socket. The fastener has a receiving cavity for accommodating the ball head. The inner wall of the fastener is threaded. The outer wall of the ball socket and the outer wall of the main base are both threaded. The threads on the ball socket and the main base are corresponding to the threads on the fastener. The fastener is threaded onto the outer side of the ball socket and the main base. The main base has a second insertion hole at the end away from the ball socket, and the columnar base has a second insertion block corresponding to the second insertion hole; The end of the columnar base away from the main base is fixedly connected to the support frame via the bracket connector.

[0012] Preferably, the support includes a triangular bracket, and one end of the columnar base away from the screw is hinged to the triangular bracket via the bracket connector.

[0013] Preferably, the ground-contacting end of the triangular bracket is designed as a pointed cone or an anti-slip pad to increase the stability or friction between the triangles and the ground.

[0014] Preferably, it further includes a protective plate, which is fixedly connected to the outer rod. The drive assembly is located on one side of the protective plate and on the side away from the inner rod. The protective plate is provided with an opening or slot for the rope to pass through, and the rope is fixedly connected to the inner rod through the opening or slot.

[0015] Preferably, the support assembly further includes a guide sleeve, which is located within the sliding space and is interference-fitted with the outer rod. The inner wall of the guide sleeve is used to slide with the outer wall of the inner rod. The guide sleeve is positioned between the end of the outer rod into which the inner rod is inserted and the point where the rope is fixedly connected to the inner rod. The guide sleeve has a through groove for the rope to pass through, and the rope is fixedly connected to the inner rod after passing through the through groove.

[0016] The other technical solutions of this invention achieve the following technical effects compared to the prior art: The telescopic device includes a telescopic part and a supporting part. The movable end of the telescopic part is used to abut against the blasting point and install the explosive charge; the fixed end of the telescopic part is connected to the supporting part at an adjustable angle via an angle-adjustable mechanism, and the supporting part is used to support the device on the ground. After the supporting part is connected to the telescopic part via the angle-adjustable mechanism, it is placed on the ground. The supporting part supports the telescopic part, and the angle between the supporting part and the telescopic part is adjustable, making the telescopic device adaptable to different working conditions and facilitating the use of the device to support the explosive charge. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained by analyzing these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the blasting telescopic device in use according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the overall structure of the telescopic device for blasting in an embodiment of the present invention; Figure 3This is a schematic diagram of the inner rod of the blasting telescopic device in an embodiment of the present invention; Figure 4 This is a schematic diagram of the guide sleeve of the blasting telescopic device in an embodiment of the present invention; Figure 5 The pulley assembly of the telescopic device for blasting in the embodiments of the present invention ( Figure 2 A structural diagram of Part A (middle section); Figure 6 The driving component of the telescopic device for blasting in the embodiments of the present invention ( Figure 2 A structural diagram of Part B (middle section); Figure 7 This is a schematic diagram of the cup-shaped connector of the blasting telescopic device in an embodiment of the present invention; Figure 8 This is a schematic diagram of the ball head bolt of the blasting telescopic device in an embodiment of the present invention; Figure 9 This is a schematic diagram of the ball socket seat of the blasting telescopic device in an embodiment of the present invention; Figure 10 This is a schematic diagram of the main base of the blasting telescopic device in an embodiment of the present invention; Figure 11 This is a schematic diagram of the adjustable rotation mechanism and support base of the blasting telescopic device in an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached drawings: 1. Outer rod; 2. Inner rod; 21. Through hole; 3. Triangular bracket; 4. Loading platform; 41. Protective sleeve; 5. Guide sleeve; 6. Pulley assembly; 61. First pulley; 62. Second pulley; 63. L-shaped bracket; 64. Pulley support plate; 7. Rope; 8. Drive assembly; 81. Drive motor; 82. Winch; 83. Motor bracket; 84. Motor base; 85. C-shaped retaining ring; 9. Adjustable angle mechanism; 91. Cup-shaped connector; 92. Ball head bolt; 921. Screw section; 922. Ball head; 93. Ball socket seat; 94. Fastener; 95. Main base; 96. Columnar base; 97. Bracket connector; 10. Protective plate; 11. Explosive charge; 12. Ore body blocked by ore accumulation ditch. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments analyzed and obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] The purpose of this invention is to provide a telescopic device for blasting, comprising a telescopic part and a support part. The movable end of the telescopic part is used to abut against the blasting point and to mount the explosive charge. The fixed end of the telescopic part is connected to the support part at an adjustable angle via an angle-adjustable mechanism. The support part is used to support the device on the ground. After being connected to the telescopic part via the angle-adjustable mechanism, the support part is placed on the ground. The support part supports the telescopic part, and the angle between the support part and the telescopic part is adjustable, allowing the telescopic device to adapt to different working conditions and facilitating the use of the device to support the explosive charge.

[0022] To achieve the above objectives, the present invention provides the following solution: like Figures 1 to 10 As shown, this embodiment provides a telescopic device for blasting, including a telescopic part and a support part. The movable end of the telescopic part is used to abut against the blasting point and to install an explosive charge 11. The fixed end of the telescopic part is connected to the support part at an adjustable angle through an angle-adjustable mechanism 9. The support part is used to support the device on the ground.

[0023] In one embodiment, the telescopic part includes an inner rod 2 and an outer rod 1. One end of the inner rod 2 is inserted into a sliding space within the outer rod 1, allowing the inner rod 2 to slide relative to the outer rod 1 within the sliding space. The other end of the inner rod 2 is a movable end, whose movement causes the overall length of the telescopic part to increase or decrease, satisfying the telescopic requirements of the device and expanding its usability. The end of the outer rod 1 furthest from the inner rod 2 is a fixed end. After the fixed end of the outer rod 1 is connected to a support part, the support part supports the outer rod 1 and the inner rod 2.

[0024] In one embodiment, the telescopic part further includes a drive assembly 8 and a rope 7. The drive assembly 8 is fixedly connected to the outer rod 1. One end of the rope 7 is connected to the drive assembly 8, and the other end of the rope 7 extends into the sliding space and is fixedly connected to the inner rod 2. The drive assembly and the rope 7 together move the inner rod 2 within the sliding space. The drive motor 81 and the winch 82 are fixed to the motor base 84 by the motor bracket 83, and the motor base 84 is fixed to the outer rod 1 by the C-shaped retaining ring 85. Both ends of the rope 7 are connected to the inner rod 2 and the drive assembly 8, respectively (since the drive assembly 8 and the outer rod 1 are fixedly connected, the end of the rope 7 connected to the drive assembly 8 is equivalent to being fixedly connected to the outer rod 1). The winch 82 on the drive assembly 8 can drive the rope 7 to move, that is, drive the rope 7 to extend and retract. The extension and retraction of the rope 7 can make the inner rod 2 slide relative to the outer rod 1, realizing the telescopic function of the telescopic part.

[0025] In one embodiment, the drive assembly 8 further includes a pulley assembly 6, which is located on the outer rod 1 near the inner rod 2 and is fixedly connected to the outer rod 1. The rope 7 slides on the pulley assembly 6, thereby causing the inner rod 2 to slide within the sliding space. The pulley assembly 6 reduces the contact between the rope 7 and the inner rod 2 or the outer rod 1, aiming to reduce the resistance or friction experienced by the rope 7 during retraction and extension.

[0026] In one embodiment, the pulley assembly 6 includes a first pulley 61 and a second pulley 62, which are arranged in a straight line. The first pulley 61 and the second pulley 62 are fixed to a pulley support plate 64 by an L-shaped bracket 63. One end of the pulley support plate 64 is connected to the outer rod 1 by screws via a C-shaped retainer 85. The rope 7, used to connect to the inner rod 2, passes through the first pulley 61 and then the second pulley 62, finally being fixedly connected to the inner rod 2. The portion of the rope 7 connecting to the winch 82 and passing through the first pulley 61 is parallel to the portion connecting the inner rod 2 and passing through the second pulley 62. The arrangement of the first pulley 61 and the second pulley 62 reduces unnecessary contact between the rope 7 and the inner rod 2 or the outer rod 1, reducing friction or resistance experienced by the rope 7.

[0027] In one embodiment, the angle-adjustable mechanism 9 includes a cup-shaped connector 91, a ball head bolt 92, a ball socket seat 93, a fastener 94, a main base 95, a columnar base 96, and a bracket connector 97.

[0028] The cup-shaped connector 91 has an annular sleeve structure. The ball head bolt 92 includes a threaded portion 921 and a ball head 922. The outer wall of the threaded portion 921 is threaded, and the thread of the threaded portion 921 corresponds to the thread of the cup-shaped connector 91. The outer side of the outer rod 1, which is used to hinge with the support frame, is also threaded, and the thread of the outer rod 1 corresponds to the thread of the cup-shaped connector 91. The cup-shaped connector 91 is threadedly fitted onto the outer side of the threaded portion 921 and the outer side of the outer rod 1. The central axis of the threaded portion 921 and the central axis of the outer rod 1 are located on the same straight line. After the threaded portion 921 and the end of the outer rod 1 connected to the threaded portion 921 are aligned, the cup-shaped connector 91 is used to fix the ball head bolt 92 to the outer rod 1. The cup-shaped connector 91 is equivalent to a sleeve, fixing the ball head bolt 92 and the outer rod 1 together.

[0029] The main base 95 has a groove for supporting the ball head 922 at one end near the ball head bolt 92. The ball head 922 is located in the groove and can rotate omnidirectionally. The ball socket 93 has a first insertion hole on the side away from the ball head 922. The main base 95 has a first insertion block that matches the first insertion hole at one end near the ball socket 93. The fastener 94 has a receiving cavity for accommodating the ball head 922. The inner wall of the fastener 94 is threaded. The outer walls of the ball socket 93 and the main base 95 are also threaded. The threads on the ball socket 93 and the main base 95 correspond to the threads on the fastener 94. The fastener 94 is threaded onto the outside of the ball socket 93 and the main base 95. The ball head 922 is placed in the groove, and then the ball socket 93 is inserted into the main base 95 through the first insert block and the first insert hole. Finally, the fastener 94 is passed through the threaded part 921 of the ball head bolt 92 and the ball socket 93 and fitted onto the outside of the ball socket 93 and the main base 95, so that the ball head 922 is located in the receiving cavity. The thread on the inner wall of the fastener 94 is threadedly connected to the thread on the outer wall of the ball socket 93 and the thread on the outer wall of the main base 95. When the fastener 94 is tightened, the distance between the ball socket 93 and the main base 95 decreases, the receiving cavity becomes smaller, and the part of the ball socket 93 fitted onto the outside of the ball head 922 will press the ball head 922, so that the ball head 922 can no longer rotate in all directions, thus achieving the purpose of fixing. When the fastener 94 is loosened, the ball head can rotate in all directions.

[0030] The main base 95 has a second insertion hole at the end away from the ball socket 93, and the columnar base 96 has a second insertion block corresponding to the second insertion hole. The insertion of the second insertion hole and the second insertion block fixes the main base 95 and the columnar base 96 together.

[0031] The end of the columnar base 96 away from the main base 95 is fixedly connected to the support frame via the bracket connector 97.

[0032] In one embodiment, the inner wall of the second insertion hole is provided with threads, and the outer wall of the second insertion block is provided with threads. The threads of the second insertion hole and the threads of the second insertion block correspond to each other, so that the second insertion hole and the second insertion block are threadedly connected.

[0033] In one embodiment, after the second plug and the second socket are plugged in, the columnar base 96 and the main base 95 can also be fixedly connected by welding.

[0034] In one embodiment, the bracket connector 97 can be fixed to the columnar base 96 by screws, and the bracket connector 97 is fixedly connected to the support frame through a quick-release interface, so that the bracket connector 97 and the support can be quickly connected.

[0035] In one embodiment, the support includes a triangular bracket 3, and one end of the columnar base 96 away from the screw is hinged to the triangular bracket 3 via a bracket connector 97.

[0036] In one embodiment, the legs of the tripod 3 are designed with pointed cones or anti-slip pads at their ends to increase the stability or friction between the triangles and the ground.

[0037] In one embodiment, a protective plate 10 is also included. The protective plate 10 is fixedly connected to the outer rod 1, and the drive assembly 8 is located on one side of the protective plate 10 and on the side away from the inner rod 2. The protective plate 10 is provided with an opening or slot for the rope 7 to pass through, and the rope 7 is fixedly connected to the inner rod 2 through the opening or slot. When ore or other objects fall, the protective plate 10 blocks or buffers them, thereby protecting the drive assembly 8.

[0038] In one embodiment, the support assembly further includes a guide sleeve 5, which is located within the sliding space and is interference-fitted with the outer rod 1. The inner wall of the guide sleeve 5 is used for sliding connection with the outer wall of the inner rod 2. The guide sleeve 5 is positioned between the end of the outer rod 1 into which the inner rod 2 is inserted and the point where the rope 7 is fixedly connected to the inner rod 2. The guide sleeve 5 has a through groove for the rope 7 to pass through, and the rope 7 is fixedly connected to the inner rod 2 after passing through the through groove. By filling the gap between the inner rod 2 and the outer rod 1 with the guide sleeve 5, the sliding of the inner rod 2 relative to the outer rod 1 becomes smoother.

[0039] In one embodiment, the system further includes a wireless control module and a power module. The wireless control module is connected to the drive assembly 8 and controls the drive motor 81 to raise and lower the rope 7. The power supply includes a battery pack that provides power to the drive motor 81 and the wireless control module.

[0040] In one embodiment, a protective housing is also included, in which the wireless control module and the power module are both located, and the protective housing protects the wireless control module and the power module.

[0041] In one embodiment, it also includes a loading platform 4 and a protective sleeve 41. The loading platform 4 is fixedly connected to the movable end. The protective sleeve 41 is provided on the outside of the loading platform 4 or on the top of the loading platform 4 to form a space for accommodating the explosive charge 11, and to fix the explosive charge 11 in the space formed by the loading platform 4 and the protective sleeve 41.

[0042] Working Principle: During operation, external equipment (such as a robotic arm) grips the outer rod 1 and moves the device to the underside of the blockage in the ore-filled ditch. The self-adaptive support triangular bracket 3 is placed on the roadway floor. A signal is sent via remote control; upon receiving the signal, the wireless control module starts the drive motor 81, which smoothly lifts the inner rod 2 along with the explosive charge 11 at its top via rope 7 until the explosive charge 11 is firmly pressed into the gap or predetermined position of the blockage. After the external equipment is withdrawn to a safe area, the explosive charge 11 is remotely detonated, completing the blockage removal operation. The outer rod 1 and inner rod 2 of this device are consumables and are destroyed along with the explosive charge 11 during blasting. After blasting, the core components such as the drive assembly 8, wireless control module, and power supply can be recovered.

[0043] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A telescopic device for blasting, characterized in that: It includes a telescopic part and a support part. The movable end of the telescopic part is used to contact the blasting point and install the explosive charge. The fixed end of the telescopic part is connected to the support part at an adjustable angle through an angle-adjustable mechanism. The support part is used to support the ground.

2. The telescopic device for blasting according to claim 1, characterized in that: The telescopic part includes an inner rod and an outer rod. One end of the inner rod is inserted into the sliding space inside the outer rod. The inner rod can telescopically slide relative to the outer rod within the sliding space. The other end of the inner rod is a movable end. The end of the outer rod away from the inner rod is a fixed end.

3. The telescopic device for blasting according to claim 2, characterized in that: The telescopic part also includes a drive assembly and a rope. The drive assembly is used to be fixedly connected to the outer rod, one end of the rope is used to be connected to the drive assembly, and the other end of the rope extends into the sliding space and is fixedly connected to the inner rod.

4. The telescopic device for blasting according to claim 3, characterized in that: The drive assembly also includes a pulley assembly, which is located on the outer rod near one end of the inner rod and is fixedly connected to the outer rod. The rope and the pulley assembly form a sliding engagement.

5. The telescopic device for blasting according to claim 4, characterized in that: The pulley assembly includes a first pulley and a second pulley, which are arranged in a straight line. One end of the rope used to connect the inner rod passes through the first pulley and then the second pulley, and is finally fixedly connected to the inner rod. The portion of the rope that connects the drive assembly and passes through the first pulley is parallel to the portion of the rope that connects the inner rod and passes through the second pulley.

6. The telescopic device for blasting according to claim 2, characterized in that: The adjustable angle mechanism includes a cup-shaped connector, a ball head bolt, a ball socket, fasteners, a main base, a columnar base, and a bracket connector; The inner wall of the cup-shaped connector is threaded. The ball head bolt includes a screw part and a ball head. The outer wall of the screw part is threaded. The thread of the screw part corresponds to the thread of the cup-shaped connector. The outer side of the outer rod, which is used to hinge with the support frame, is also threaded. The thread of the outer rod corresponds to the thread of the cup-shaped connector. The cup-shaped connector is threaded and fitted onto the outer side of the screw part and the outer side of the outer rod. The main base has a groove for supporting the ball head at one end near the ball head bolt. The ball socket has a first insertion hole on the side away from the ball head. The main base has a first insertion block adapted to the first insertion hole at one end near the ball socket. The fastener has a receiving cavity for accommodating the ball head. The inner wall of the fastener is threaded. The outer wall of the ball socket and the outer wall of the main base are both threaded. The threads on the ball socket and the main base are corresponding to the threads on the fastener. The fastener is threaded onto the outer side of the ball socket and the main base. The main base has a second insertion hole at the end away from the ball socket, and the columnar base has a second insertion block corresponding to the second insertion hole; The end of the columnar base away from the main base is fixedly connected to the support frame via the bracket connector.

7. The telescopic device for blasting according to claim 6, characterized in that: The support includes a triangular bracket, and one end of the columnar base away from the screw is hinged to the triangular bracket via the bracket connector.

8. The telescopic device for blasting according to claim 7, characterized in that: The ground-contacting end of the triangular bracket is designed with a pointed cone or anti-slip pad to increase the stability or friction between the triangles and the ground.

9. The telescopic device for blasting according to claim 3, characterized in that: It also includes a protective plate, which is fixedly connected to the outer rod. The drive assembly is located on one side of the protective plate and on the side away from the inner rod. The protective plate is provided with an opening or slot for the rope to pass through, and the rope is fixedly connected to the inner rod through the opening or slot.

10. The telescopic device for blasting according to claim 9, characterized in that: The support assembly also includes a guide sleeve, which is located within the sliding space and is interference-fitted with the outer rod. The inner wall of the guide sleeve is used to slide with the outer wall of the inner rod. The guide sleeve is positioned between the end of the outer rod into which the inner rod is inserted and the point where the rope is fixedly connected to the inner rod. The guide sleeve has a through groove for the rope to pass through, and the rope is fixedly connected to the inner rod after passing through the through groove.

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