Automatic suspension fixing and dredging device for vertical shaft blockage explosive package

Abstract

The application discloses a kind of vertical chute blockage explosive package automatic suspension fixed dredging device, it is related to mining auxiliary equipment field, including explosive package fixed unit, for loading explosive package and suspending fixed it;Conveying unit is used to convey explosive package fixed unit to block and can be recycled;Explosive package fixed unit is manufactured below the cost of conveying unit.This device uses explosive package fixed unit to load explosive package, and the conveying unit is conveyed explosive package fixed unit to realize the suspension fixed of explosive package, its conveying unit can be recycled, and the manufacturing cost of explosive package fixed unit is lower than conveying unit, compared with the destruction of conveying unit, and its destruction can be relatively reduced use cost.

Description

Technical Field

[0001] This invention relates to the field of auxiliary equipment for mining operations, and in particular to an automatic suspended and fixed unblocking device for explosive charges used to unclog vertical chutes. Background Technology

[0002] The ore pass is a crucial link in the entire underground mining system, playing a vital role in the mining process. When ore enters the ore pass from the unloading station above, the falling material impacts the existing material inside the pass under the influence of gravity, causing the material to be compacted, or large and small pieces of material to accumulate together, or viscous minerals to undergo secondary consolidation under the action of water. This can lead to arching or blockage at a certain point in the ore pass shaft when material is discharged from the bottom, preventing the stored material from falling. Once the ore pass becomes blocked, it will affect the normal operation of the entire mine production.

[0003] For vertical ore chutes (used for transporting ore or waste rock and also serving as storage facilities) that are blocked, the blockage often occurs in the upper or middle part (more than 6 meters from the bottom of the chute), making it difficult for personnel to enter and handle. The conventional method is to construct a blasting hole to the blockage location and then detonate explosives. This method is quite cumbersome. When the blockage is located at a high position, personnel need to use climbing tools to construct the blasting hole, which is highly dangerous. Therefore, personnel usually use a support rod made of stainless steel with pulleys at the top, with an explosive charge attached to one end of a rope. The explosive charge is then pulled up to the blockage location and detonated using the pulley system as a fulcrum. This operation is convenient, quick, and highly safe.

[0004] However, the existing method of using long poles to support explosive charges for transporting them to the blockage has shortcomings: it cannot retrieve the pulley block, support pole, and pull rope (which will be destroyed by the explosive charge). When the blockage is high, longer support poles and pull ropes are required, and the destruction of longer support poles and pull ropes will result in greater cost losses. Therefore, this application provides an automatic suspended and fixed unblocking device for explosive charges for vertical well blockages to meet the needs. Summary of the Invention

[0005] The purpose of this application is to provide an automatic suspended and fixed unblocking device for explosive charges used in vertical well blockages, in order to reduce the significant cost losses caused by the inability to retrieve support rods, pulley blocks, and pull ropes.

[0006] To achieve the above objectives, this application provides the following technical solution: an automatic suspended and fixed unblocking device for explosive charges used to unclog vertical chute blockages, comprising an explosive charge fixing unit for carrying the explosive charge and suspending and fixing it in the air; and a transport unit for transporting the explosive charge fixing unit to the blockage and for recycling. For blasting blockages in the upper part of the chute, the manufacturing cost of the explosive charge fixing unit 2 is lower than that of the transport unit.

[0007] Preferably, the explosive charge fixing unit includes a U-shaped support frame with two pneumatic telescopic rods and two airbags installed. The two pneumatic telescopic rods and the two airbags are arranged opposite to each other. The inner cavities of the two airbags are connected by a first air pipe, and the inflation cavities of the two pneumatic telescopic rods are connected by a second air pipe. The inner cavity of one of the airbags communicates with the inflation cavity of one of the pneumatic telescopic rods through a third air pipe. A one-way air inlet valve is provided on the third air pipe. The U-shaped support frame is also provided with four limiting posts that can limit the movement of the explosive charge. Plates are fixed to the movable ends of the two pneumatic telescopic rods, and sliders are slidably installed in the inner cavities of the two plates. A stop block is installed on the slider, and the lower end of the slider is connected to the plate by a spring.

[0008] Preferably, an exhaust pipe is installed on the pneumatic telescopic rod connected to the third air pipe, and an exhaust one-way valve is installed on the exhaust pipe, with the outlet end of the exhaust one-way valve connected to the inlet end of the whistle body.

[0009] Preferably, the abutment block is movably connected to the slider via a omnidirectional ball.

[0010] Preferably, the conveying unit includes a mounting base, a pulley system for saving effort, and a height-adjustable support rod;

[0011] The support rod includes a first rod body, several second rod bodies, a third rod body, and a lifting unit for fine-tuning the height of the third rod body. The first rod body, several second rod bodies, and the third rod body are arranged in a straight line and are detachably installed together. A contact plate is installed at the upper end of the first rod body. The lifting unit includes a hollow tube threaded around the third rod body, and a support plate is rotatably installed at the lower end of the hollow tube.

[0012] The labor-saving pulley system includes a first pulley, a second pulley, and a third pulley arranged horizontally at the top of the first rod. The first and second pulleys are located on the left side of the first rod, and the third pulley is located on the right side of the first rod. It also includes a fourth pulley located below the first pulley. The mounting bracket of the fourth pulley is fixedly connected to the frame of the mounting base through a connecting rod. Pull ropes are sequentially sleeved on the first pulley, the fourth pulley, the second pulley, and the third pulley. The lifting end of the pull rope is fixed on the mounting bracket of the fourth pulley.

[0013] The mounting base is provided with a placement groove that matches the bottom of the U-shaped support frame. A through cavity is provided at the center of the mounting base. A second clamping strip is fixed on the side end of the mounting base, and a first clamping strip is slidably disposed opposite to the second clamping strip. The first clamping strip and the second clamping strip are fixed by a locking member. Both the first clamping strip and the second clamping strip are provided with concave surfaces that match the outer surfaces of the first rod and several second rods. Limiting strips are provided in both concave surfaces. Limiting grooves that match the limiting strips are provided on the outer surfaces of the first rod and several second rods.

[0014] Preferably, universal ball bearings are installed on all three sides of the limiting strip, and guide slopes are provided on the front, left and right sides of the upper and lower ends of the limiting strip. The rear end of the limiting strip is laterally movably disposed in the movable groove provided on the concave surface, and the limiting strip can move laterally left and right relative to the movable groove.

[0015] Preferably, a hook is installed on the outer wall of the third rod.

[0016] Preferably, the transport unit is configured as a pipeline inspection robot or drone, and the U-shaped support frame is placed in a groove on the top of the pipeline inspection robot or drone.

[0017] In summary, the technical effects and advantages of this invention are as follows:

[0018] The present invention has a reasonable structure. The device uses an explosive charge fixing unit to carry the explosive charge and a transport unit to transport the explosive charge fixing unit to achieve the suspension and fixing of the explosive charge. The transport unit can be recovered. For the blasting of the blockage in the upper part of the chute, the manufacturing cost of the explosive charge fixing unit is lower than that of the transport unit. Compared with the destruction of the transport unit, the destruction of the explosive charge fixing unit can relatively reduce the cost of use.

[0019] In this invention, the explosive charge fixing unit includes an airbag, pneumatic telescopic rods, and a U-shaped support frame. The pressure generated by the explosive charge coming into contact with the blocking ore acts on the airbag to inflate the two pneumatic telescopic rods, causing the movable ends of the two pneumatic telescopic rods to extend outward and contact and compress with the inner wall of the ore pass, thereby suspending and stably fixing the explosive charge in the air. Moreover, the use of pneumatic drive ensures that the gas compression force on the movable ends of the two pneumatic telescopic rods is consistent, that is, it ensures that the compression force between the two contact blocks and the inner wall of the ore pass is consistent, which is beneficial to improving the stability of the suspended fixing of the explosive charge.

[0020] In this invention, the motion unit includes a mounting base, a labor-saving pulley system, and a height-adjustable support rod. The three components work together to transport the explosive charge to the blockage. The use of the labor-saving pulley system makes it easier for personnel to pull the rope.

[0021] In this invention, an alarm unit is set up, consisting of an exhaust pipe, an exhaust one-way valve, and a whistle. When the explosive charge is suspended and fixed in the air, it automatically emits an alarm sound. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the 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.

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of a partially disassembled structure of the present invention;

[0025] Figure 3 For the present invention Figure 2 Schematic diagram of the fixing unit structure of the Chinese medicine pack;

[0026] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0027] Figure 5 For the present invention Figure 3 Schematic diagram of the connection structure between the pneumatic telescopic rod and the contact block;

[0028] Figure 6 For the present invention Figure 2 Schematic diagram of the mounting base structure;

[0029] Figure 7 For the present invention Figure 6 Schematic diagram of the middle limit bar structure;

[0030] Figure 8 For the present invention Figure 1 Schematic diagram of the lifting unit structure

[0031] Figure 9 For the present invention Figure 1 Schematic diagram of the lifting unit structure;

[0032] Figure 10 This is a schematic diagram of the force analysis structure of the rope in this invention.

[0033] In the diagram: 1. Mounting base; 101. Frame; 102. Through cavity; 103. Placement groove; 104. First clamping bar; 105. Second clamping bar; 106. Concave surface; 107. Limiting bar; 108. Universal ball bearing; 109. Guide slope; 2. Medicine pack fixing unit; 21. U-shaped support frame; 22. Through hole; 23. Airbag; 24. Limiting post; 25. First air tube; 26. Pneumatic telescopic rod; 27. Third air tube; 28. One-way air inlet valve; 29. ​​Second air tube; 21 0. Exhaust check valve; 211. Exhaust pipe; 212. Whistle body; 213. Contact block; 214. Plate; 215. Slider; 216. Spring; 217. Universal ball; 3. Support rod; 31. First rod body; 32. Contact plate; 33. Second rod body; 34. Third rod body; 35. Lifting unit; 351. Hollow tube; 352. Support plate; 4. Effort-saving pulley system; 41. First pulley; 42. Second pulley; 43. Third pulley; 44. Fourth pulley; 45. Pull rope. Implementation

[0034] 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 some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example: Reference Figure 1-2 The device shown is an automatic suspended and fixed unblocking device for explosive charges used to unclog vertical chute blockages. It includes an explosive charge fixing unit 2 for carrying the explosive charge and suspending and fixing it in the air; and a transport unit for transporting the explosive charge fixing unit 2 to the blockage and for recycling. For blasting blockages in the upper part of the chute, the manufacturing cost of the explosive charge fixing unit 2 is lower than that of the transport unit.

[0036] As a preferred embodiment of this example, Figure 3-5As shown, the explosive charge fixing unit 2 includes a U-shaped support frame 21 with two pneumatic telescopic rods 26 and two airbags 23 installed. The two pneumatic telescopic rods 26 and the two airbags 23 are arranged opposite to each other. The inner cavities of the two airbags 23 are connected by a first air pipe 25. The inflation cavities of the two pneumatic telescopic rods 26 are connected by a second air pipe 29. The inner cavity of one of the airbags 23 is connected to the inflation cavity of one of the pneumatic telescopic rods 26 by a third air pipe 27. A one-way air inlet valve 28 is provided on the third air pipe 27. The U-shaped support frame 21 is also provided with four limiting posts 24 that can limit the explosive charge. Plates 214 are fixed on the movable ends of the two pneumatic telescopic rods 26. Slider blocks 215 are slidably installed in the inner cavities of the two plates 214. Abutment blocks 213 are installed on the sliders 215. The lower end of the sliders 215 is connected to the plates 214 by a spring 216.

[0037] In use, the explosive charge is placed on the explosive charge fixing unit 2, and the explosive charge fixing unit 2 is placed on the conveying unit. The conveying unit transports the explosive charge to the blockage. When the upper end of the explosive charge comes into contact with the blocking ore, the explosive charge will compress the two air bladders 23. The gas in the two compressed air bladders 23 will be transported through pipes and one-way air inlet valves 28 to the two pneumatic telescopic rods 26 (because the two pneumatic telescopic rods 26 are connected to the two inflation chambers through the third air pipe 27). The movable ends of the two pneumatic telescopic rods 26 will extend outward. When the contact blocks 213 on both movable ends are in contact with the inner wall of the ore pass, the conveying unit stops. The device operates and retrieves the transport unit (even if the transport unit is separated from the explosive charge fixing unit 2, at this time, due to the action of the one-way air inlet valve 28, the gas in the inflation chambers of the two pneumatic telescopic rods 26 cannot flow back into the airbag 23). At this time, the explosive charge is fixed at the ore blockage by the friction between the contact block 213 and the ore pass. The explosive charge is ignited by lighting the fuse perpendicular to the ground, and the explosive charge fixing unit 2 will be destroyed along with the explosive charge. For dealing with blockages at higher locations, the cost of the explosive charge fixing unit 2 is less than the cost of damage to the support rod and the pull rope, thus effectively reducing the cost of use. The two pneumatic telescopic rods 26 have interconnected inflation chambers and are pneumatically driven, ensuring that the gas compression force on the movable ends of the two pneumatic telescopic rods 26 is consistent. This ensures that the compression force between the two contact blocks 213 and the inner wall of the chute is consistent, which helps improve the stability of the suspended explosive charge. The contact blocks 213 of this device are slidably movable up and down and are also equipped with springs 23. When the explosive charge is compressed and the contact end of the contact block 213 is in contact with the inner wall of the chute, as the explosive charge continues to move upward through the conveying unit, a spring 23 is provided to prevent the friction between the contact block 213 and the inner wall of the chute from stopping the explosive charge. As the package continues to move upward, the contact block 213 is movably set, and the contact block 213 can compress the spring 216. At this time, the loop support frame 21 will continue to move upward relative to the contact block 213, so that the explosive package continues to compress the air bag 23 and continues to inflate the air chamber of the pneumatic telescopic rod 26, increasing the squeezing force between the contact block 213 and the inner wall of the chute, so that the contact block 213 and the inner wall of the chute generate a sufficiently large frictional force to achieve the suspension and fixation of the explosive package, and can avoid the increase of the movement resistance of the transport unit caused by the contact block 213 contacting the inner wall of the chute and continuing to move upward with the loop support frame 21.

[0038] It should be noted that: 1. The fuse of the explosive charge can be vertically lowered through the through hole 22; 2. The contact surface of the contact block 213 is provided with an anti-slip structure, which can increase the friction between the explosive charge and the inner wall of the chute, and improve the stability of the suspended explosive charge; the anti-slip structure can be set as a conical protrusion; 3. The contact surface of the contact block 213 is set as an arc-shaped surface adapted to the inner wall of the chute, which can increase the contact area between the contact block and the inner wall of the chute, and improve the stability of the suspended explosive charge; the inner cavity of the chute is generally a circular structure; 4. The U-shaped support frame 21, the pneumatic telescopic rod 26, and the contact block 213 of this device are all made of plastic, which makes it easy to destroy the explosive charge during the explosion and has low manufacturing cost; 5. When the blockage in the chute is located in the upper part of the chute, that is, when the blockage is at least 6 meters away from the bottom of the chute, the explosive charge fixing unit 2 can be used to support the explosive charge, which can effectively reduce the cost of use.

[0039] As a preferred embodiment of this example, Figure 4 As shown, an exhaust pipe 211 is installed on the pneumatic telescopic rod 26 connected to the third air pipe 27, and an exhaust one-way valve 210 is installed on the exhaust pipe 211. The outlet end of the exhaust one-way valve 210 is connected to the inlet end of the whistle body 212. When the airbag 23 inflates the inflation chambers of the two pneumatic telescopic rods 26, when the air pressure inside the inflation chamber exceeds M (M is the air pressure inside the pneumatic telescopic rod 2 when the explosive pack is suspended and fixed), the lifting spring inside the exhaust one-way valve 210 will be compressed, creating a gap between the block and the opening. The gas inside will be discharged from the outlet of the exhaust pipe 211 to the whistle body 212. The whistle body 212 will make a sound due to the flow of gas. When the operator hears this sound, he can stop the operation of the transport unit and stop the movement of squeezing the explosive pack. The exhaust pipe 211, the exhaust one-way valve 210 and the whistle body 212 form an alarm unit to remind the personnel that the explosive pack fixing operation has been completed.

[0040] As a preferred embodiment of this example, Figure 5 As shown, the contact block 213 is movably connected to the slider 215 via the universal ball 217. When the axis of the upward-moving explosive charge is not on the same straight line as the axis of the chute, if the universal ball 217 is not set, the contact surfaces of the two contact blocks 213 will partially contact the inner wall of the chute, resulting in a smaller contact area and easy instability. However, after setting the universal ball 217, when the contact block 213 partially contacts the inner wall of the chute, it will automatically change the angle so that the contact of the contact block 213 is in complete contact with the inner wall of the chute, which is beneficial to improving the stability of the suspended and fixed explosive charge.

[0041] As a preferred embodiment of this example, Figure 2 ,and Figure 6-9As shown, the conveying unit includes a mounting base 1, a pulley system 4, and a height-adjustable support rod 3. The support rod 3 includes a first rod 31, several second rods 33, a third rod 34, and a lifting unit 35 for fine-tuning the height of the third rod 34. The first rod 31, several second rods 33, and the third rod 34 are arranged in a straight line and are detachably installed together. A contact plate 32 is installed at the upper end of the first rod 31. The lifting unit 35 includes a screw... A hollow tube 351 is fitted around the third rod 34, and a support plate 352 is rotatably mounted on the lower end of the hollow tube 351. The labor-saving pulley block 4 includes a first pulley 41, a second pulley 42, and a third pulley 43 arranged horizontally at the top of the first rod 31. The first pulley 41 and the second pulley 42 are located on the left side of the first rod 31, and the third pulley 43 is located on the right side of the first rod 31. It also includes a fourth pulley 44 located below the first pulley 41. The fourth pulley 44 is mounted on... The mounting bracket is fixedly connected to the frame 101 of the mounting base 1 via a connecting rod. Pull ropes 45 are sequentially fitted onto the first pulley 41, fourth pulley 44, second pulley 42, and third pulley 43. The lifting end of the pull rope 45 is fixed to the mounting bracket of the fourth pulley 44. The mounting base 1 has a placement groove 103 adapted to the bottom of the U-shaped support frame 21. A through cavity 102 is provided at the center of the mounting base 1. A second clamping strip 105 is fixed to the side end of the mounting base 1 and is connected to the second clamping... A first clamping bar 104 is slidably disposed opposite to the bar 105. The first clamping bar 104 and the second clamping bar 105 are fixed by a locking member. Both the first clamping bar 104 and the second clamping bar 105 are provided with concave surfaces 106 that are adapted to the outer surfaces of the first rod 31 and several second rods 33. Limiting bars 107 are provided in both concave surfaces 106. Limiting grooves adapted to the limiting bars 107 are provided on the outer surfaces of the first rod 31 and several second rods 33.

[0042] In use, the height of the support rod 3 can be increased by splicing the first rod 31 and the second rod 33 according to the height of the blockage. The number of second rods 33 can be selected as needed. Finally, the third rod 34 is installed together with the first rod 33, and the hollow tube 351 is rotated to move the thinner part of the hollow tube 351 downward relative to the third rod 34, so as to make a fine adjustment of the height of the support rod 3. This makes the upper end of the contact plate 32 come into contact with the blockage ore, and the lower end of the support plate 352 presses against the ground. The support rod 3 is fixed by the action of the upper and lower pressing. At this time, the mounting base 1 can be fixed to the second rod 33 by the locking device. The limiting strip 107 is engaged in the limiting groove, and the explosive charge is placed on the placement groove 103. By pulling the rope 45, in conjunction with multiple pulleys, the mounting base 1 drives the explosive charge to move upward. Figure 10Force analysis shows that, without considering the weight and friction of the fourth pulley 44 and part of the pull rope 45, the cooperation of multiple pulleys can save two-thirds of the force. That is, applying a force equivalent to one-third of the total weight of the explosive charge, the explosive plate fixing unit 2, and the mounting base 1 to one end of the pull rope 45 can make the mounting base 1 move upward, which can achieve a good force-saving effect. After the explosive charge is suspended and fixed, the pull rope 451 is released, and the mounting base 1 moves downward under its own weight. At this time, the mounting base 1 can be removed from the support rod 3 and the support rod 3 can be disassembled. After the disassembled support rod 3 and the mounting base 1 are removed from the chute, the fuse is lit to detonate the explosive charge for the dredging work.

[0043] It should be noted that: 1. The fuse of the explosive charge can pass through the cavity 103 and hang vertically; 2. The first rod 31, the second rod 33, and the two second rods 33 are all fixed by threaded connections, and the tightening direction is consistent. When the hollow tube 351 moves downward relative to the third rod 34, its rotation direction is consistent with the tightening direction, which can prevent the threaded connections between the rods from loosening, thus preventing the limiting grooves on each rod from not being on the same straight line, thereby affecting the movement of the limiting strip 107; 3. The locking component can be a combination of bolts and nuts; 4. In the process of... When the support rod 3 is fixed, the fixed position of the support rod 3 is along the axis of the chute and moves laterally for a certain distance. This position makes the axis of the explosive charge placed on the mounting base 1 as straight as possible with the axis of the chute. This avoids a large difference in the distance between the two contact ends of the two contact blocks 213 and the inner wall of the chute. If the distance difference is large and the movable end of the pneumatic telescopic rod 26 extends only slightly, it is easy for one contact block 213 to contact the inner wall of the chute, while the other contact block 213 can never contact the inner wall of the chute, and the explosive charge cannot be suspended and fixed.

[0044] As a preferred embodiment of this example, Figure 7As shown, universal ball bearings 108 are installed on three sides of the limiting strip 107, and guide slopes 109 are provided on the front, left, and right sides of the upper and lower ends of the limiting strip 107. The rear end of the limiting strip 107 is laterally movably disposed in a movable groove provided on the concave surface 106. The limiting strip 107 can move laterally left and right relative to the movable groove. The universal ball bearings 108 reduce the frictional resistance between the limiting strip 107 and the rod body. The guide slopes 101 serve a guiding function. When there is a misalignment at the joint end of two adjacent limiting grooves, the guide slopes 101 can provide guidance. The limit bar 107 is designed to move laterally to the left or right to smoothly enter the lower limit groove without affecting the connection between the rods. For example, if the first rod 31, the second rod 33, and the third rod 34 are connected by threads and there is a mating error, if the limit bar 107 cannot move laterally, the guide slope 101 of the limit bar 107 will abut against the inlet end of the limit groove, and under the action of tension, it will form a squeeze and drive the rod to rotate, thereby affecting the stability of the threaded connection between the rods. It also increases the resistance when pulling the pull rope 45, making it more difficult for personnel to pull it open.

[0045] As a preferred embodiment of this example, Figure 1 As shown, a hook is installed on the outer wall of the third rod 34, which can be tied to the tension end of the pull rope 45 to prevent the pull rope 45 from coming off the pulley.

[0046] It should be noted that a take-up reel can also be installed on the outer wall of the third rod 34 to replace the hook, which can prevent the pull rope 45 from coming off the pulley while also allowing for the take-up and take-up of the pull rope.

[0047] As a preferred embodiment of this invention (not shown in the figure), the transport unit is set as a pipeline inspection robot or drone. The U-shaped support frame 21 is placed in the groove on the top of the pipeline inspection robot or drone. Compared with the support rod 3, the pipeline inspection robot or drone has a higher procurement cost and is more troublesome to maintain, but its explosive charge fixing and installation efficiency is higher. It can be selected according to the actual situation.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic suspended and fixed unblocking device for explosive charges used in vertical well blockages, characterized in that: It includes an explosive charge fixing unit (2) for carrying the explosive charge and suspending and fixing it; and a transport unit for transporting the explosive charge fixing unit (2) to the blockage and for recycling. For the blasting of the blockage in the upper part of the chute, the manufacturing cost of the explosive charge fixing unit (2) is lower than that of the transport unit. The explosive charge fixing unit (2) includes a U-shaped support frame (21) with two pneumatic telescopic rods (26) and two air bags (23) installed. The two pneumatic telescopic rods (26) and the two air bags (23) are arranged opposite to each other. The inner cavities of the two air bags (23) are connected by a first air pipe (25). The inflation cavities of the two pneumatic telescopic rods (26) are connected by a second air pipe (29). The inner cavity of one of the air bags (23) is connected to the inflation cavity of one of the pneumatic telescopic rods (26) by a third air pipe (27). The third air pipe (27) is equipped with a one-way air inlet valve (28), and the U-shaped support frame (21) is also equipped with four limiting posts (24) that can limit the explosive charge. The movable ends of the two pneumatic telescopic rods (26) are fixed with plates (214), and the inner cavities of the two plates (214) are slidably equipped with sliders (215). The sliders (215) are equipped with abutting blocks (213), and the lower end of the sliders (215) is connected to the plates (214) by springs (216).

2. The automatic suspended and fixed unblocking device for explosive charges used to block vertical chute blockages according to claim 1, characterized in that: An exhaust pipe (211) is installed on the pneumatic telescopic rod (26) connected to the third air pipe (27), and an exhaust one-way valve (210) is installed on the exhaust pipe (211). The outlet end of the exhaust one-way valve (210) is connected to the inlet end of the whistle body (212).

3. The automatic suspended and fixed unblocking device for explosive charges used to unclog vertical chute according to claim 1, characterized in that: The abutment block (213) is movably connected to the slider (215) via a universal ball (217).

4. The automatic suspended and fixed unblocking device for explosive charges used to block vertical chute blockages according to claim 1, characterized in that: The transport unit includes a mounting base (1), a pulley system (4), and a height-adjustable support rod (3). The support rod (3) includes a first rod body (31), several second rod bodies (33), a third rod body (34), and a lifting unit (35) for fine-tuning the height of the third rod body (34). The first rod body (31), several second rod bodies (33), and the third rod body (34) are arranged in a straight line and are detachably installed together. A contact plate (32) is installed at the upper end of the first rod body (31). The lifting unit (35) includes a hollow tube (351) threaded around the third rod body (34). A support plate (352) is rotatably installed at the lower end of the hollow tube (351). The labor-saving pulley block (4) includes a first pulley (41), a second pulley (42) and a third pulley (43) arranged horizontally at the top of the first rod (31). The first pulley (41) and the second pulley (42) are located on the left side of the first rod (31), and the third pulley (43) is located on the right side of the first rod (31). It also includes a fourth pulley (44) located below the first pulley (41). The mounting bracket of the fourth pulley (44) is fixedly connected to the frame (101) of the mounting base (1) through a connecting rod. Pull ropes (45) are sequentially sleeved on the first pulley (41), the fourth pulley (44), the second pulley (42) and the third pulley (43). The lifting end of the pull rope (45) is fixed on the mounting bracket of the fourth pulley (44). The mounting base (1) is provided with a placement groove (103) that is adapted to the bottom of the U-shaped support frame (21). A through cavity (102) is provided at the center of the mounting base (1). A second clamping strip (105) is fixed on the side end of the mounting base (1), and a first clamping strip (104) is slidably provided opposite to the second clamping strip (105). The first clamping strip (104) and the second clamping strip (105) are fixed by a locking member. Both the first clamping strip (104) and the second clamping strip (105) are provided with concave surfaces (106) that are adapted to the outer surfaces of the first rod (31) and several second rods (33). Limiting strips (107) are provided in both concave surfaces (106). Limiting grooves adapted to the limiting strips (107) are provided on the outer surfaces of the first rod (31) and several second rods (33).

5. The automatic suspended and fixed unblocking device for explosive charges used to block vertical chute blockages according to claim 4, characterized in that: Universal ball bearings (108) are installed on all three sides of the limiting strip (107), and guide slopes (109) are provided on the front, left and right sides of the upper and lower ends of the limiting strip (107). The rear end of the limiting strip (107) is laterally movably disposed in the movable groove provided on the concave surface (106), and the limiting strip (107) can move laterally left and right relative to the movable groove.

6. The automatic suspended and fixed unblocking device for explosive charges used to block vertical chute blockages according to claim 4, characterized in that: A hook is installed on the outer wall of the third rod (34).

7. The automatic suspended and fixed unblocking device for explosive charges used to block vertical chute blockages according to claim 1, characterized in that: The transport unit is configured as a pipeline inspection robot or drone, and the U-shaped support frame (21) is placed in the groove on the top of the pipeline inspection robot or drone.

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