A mine blasting hole resistance adjusting device

Abstract

This utility model relates to a resistance regulating device, and more particularly to a resistance regulating device for mine blasting holes. This utility model provides such a resistance regulating device for mine blasting holes, including a housing, an exhaust pipe, a heat dissipation plate, a cylinder, a first push rod, a slip ring, a rotating rod, a support arm, a contact plate, and rollers. A heat dissipation plate is located on the rear side of the housing. A cylinder is bolted to the center of the heat dissipation plate. The first push rod is connected to the extension rod of the cylinder. A slip ring is slidably mounted on the housing. The front end of the first push rod is connected to the rear center of the slip ring. Rotating rods are rotatably mounted on the slip ring at intervals. Each rotating rod is equipped with a support arm. A contact plate is welded to the outside of the support arm, and rollers are rotatably mounted on each contact plate. This utility model, through the cooperation of components such as a resistance-eliminating cylinder, an intake pipe, and a propeller, can draw air from the blasting hole into the resistance-eliminating cylinder. The air in the resistance-eliminating cylinder is then discharged from the exhaust pipe, thereby achieving the function of resistance regulation within the mine blasting hole.

Description

Technical Field

[0001] This utility model relates to a resistance adjustment device, and more particularly to a resistance adjustment device for blasting holes in mines. Background Technology

[0002] The purpose of adjusting the resistance inside a mine blasting hole is to control the blasting direction. By adjusting the resistance inside the hole, workers can control the direction of rock fragmentation and throwing during blasting, ensuring that the blasting energy is released in the predetermined direction, thus achieving control over the blasting direction. In slope blasting, adjusting the resistance inside the hole can cause the blasted rock to fragment and move along the slope direction, avoiding any impact on slope stability. However, existing mine blasting hole resistance adjustment devices are not perfect, and the devices are inconvenient to move, which affects the adjustment effect.

[0003] Therefore, there is a particular need for a resistance adjustment device inside a mine blasting hole to solve the problems existing in the prior art. Utility Model Content

[0004] In order to overcome the shortcomings of existing internal resistance adjustment devices for mine blasting holes, such as imperfections and inconvenience in moving them, which affects the adjustment effect, the technical problem to be solved is to provide an internal resistance adjustment device for mine blasting holes.

[0005] The technical solution is as follows: A resistance adjustment device for blasting holes in mines, comprising a shell, an exhaust pipe, a heat dissipation plate, a cylinder, a first push rod, a slip ring, a rotating rod, a support arm, a contact plate, rollers, a resistance elimination cylinder, a suction pipe, a motor, a clamping sleeve, and a propeller. A heat dissipation plate is located on the rear side of the shell. A cylinder is bolted to the center of the heat dissipation plate. The first push rod is connected to the telescopic rod of the cylinder. A slip ring is slidably mounted on the shell. The front end of the first push rod is connected to the center of the rear side of the slip ring. A rotating rod is rotatably mounted on the slip ring at intervals. A support arm is mounted on each rotating rod. A contact plate is welded to the outside of the support arm. Rollers are rotatably mounted on each contact plate. A resistance elimination cylinder is mounted on the front side of the slip ring. An exhaust pipe is embedded in the upper part of the resistance elimination cylinder. A suction pipe is located on the front side of the resistance elimination cylinder. A motor is bolted to the rear side of the inner wall of the resistance elimination cylinder. A clamping sleeve is located on the output shaft of the motor, and a propeller is connected to the clamping sleeve.

[0006] Furthermore, it also includes an electric telescopic rod, a second push rod, connecting rods, and a piston. The electric telescopic rod is snapped onto the front side of the propeller, and the second push rod is installed on the electric telescopic rod. Up to four connecting rods are spaced apart at the front end of the second push rod, and a piston is connected between the front ends of the four connecting rods. The piston slides in conjunction with the inner wall of the suction tube.

[0007] Furthermore, it also includes an elastic plate and a sealing ring. An elastic plate is embedded in the front side of the piston, and a sealing ring is connected to the elastic plate, with the sealing ring contacting and engaging with the piston.

[0008] Furthermore, it also includes handles, with handles provided on both the left and right sides of the outer casing.

[0009] Furthermore, it also includes anti-slip pads; anti-slip pads are installed on the inner walls of the contact plates, which can increase the contact area between the contact plates and the hole walls.

[0010] Furthermore, the piston has a hollow center, which allows the gas inside the rupture hole to be quickly drawn into the suction tube.

[0011] Compared with the prior art, the present invention has the following advantages: 1. The present invention, through the cooperation of components such as the resistance elimination cylinder, the suction pipe and the propeller, can draw the air in the blast hole into the resistance elimination cylinder, and the air in the resistance elimination cylinder will be discharged from the exhaust pipe, thereby realizing the function of resistance adjustment in the mine blast hole.

[0012] 2. This utility model, through the cooperation of components such as the second push rod, connecting rod and piston, can assist in extracting air from the mine blasting hole, thereby shortening the resistance adjustment time in the mine blasting hole.

[0013] 3. This utility model reduces the occurrence of air leakage by using an elastic plate and a sealing ring. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the support arm, contact plate, and rollers of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the components of this utility model, including the outer shell, cylinder, and slip ring.

[0017] Figure 4 This is a three-dimensional structural diagram of the slip ring, resistance elimination cylinder, and suction tube components of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the components of this utility model, including the motor, ferrule, and propeller.

[0019] Figure 6 This is a three-dimensional structural diagram of the connecting rod, piston, and elastic plate components of this utility model.

[0020] Reference numerals: 1_Outer shell, 101_Exhaust pipe, 2_Radiator plate, 3_Cylinder, 4_First push rod, 5_Slip ring, 6_Rotor, 7_Support arm, 8_Contact plate, 9_Roller, 10_Resistance elimination cylinder, 11_Suction tube, 12_Motor, 13_Clip sleeve, 14_Propeller, 15_Electric telescopic rod, 16_Second push rod, 17_Connecting rod, 18_Piston, 19_Elastic plate, 20_Sealing ring, 21_Grip, 22_Anti-slip pad. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings.

[0022] Example 1

[0023] A resistance adjustment device for blasting holes in mines, as described in a preferred embodiment of this utility model, is as follows: Figures 1-6 As shown, the device includes a housing 1, an exhaust pipe 101, a heat sink 2, a cylinder 3, a first push rod 4, a slip ring 5, a rotating rod 6, a support arm 7, a contact plate 8, a roller 9, a resistance-eliminating cylinder 10, a suction pipe 11, a motor 12, a ferrule 13, a propeller 14, an electric telescopic rod 15, a second push rod 16, a connecting rod 17, a piston 18, an elastic plate 19, a sealing ring 20, a handle 21, and an anti-slip pad 22. The heat sink 2 is located on the rear side of the housing 1, and the cylinder is bolted to the center of the heat sink 2. 3. The first push rod 4 is connected to the telescopic rod of the cylinder 3. The slip ring 5 is slidably provided on the outer shell 1. The front end of the first push rod 4 is connected to the middle of the rear side of the slip ring 5. The rotating rod 6 is rotatably provided on the slip ring 5 at intervals. The support arm 7 is installed on each of the rotating rods 6. The contact plate 8 is welded to the outside of the support arm 7. The roller 9 is rotatably provided on each of the contact plates 8. The resistance elimination cylinder 10 is installed on the front side of the slip ring 5. The exhaust pipe 101 is embedded in the upper part of the resistance elimination cylinder 10. The suction pipe 11 is provided on the front side of the resistance elimination cylinder 10. The motor 12 is bolted to the rear side of the inner wall of the resistance elimination cylinder 10. The output shaft of the motor 12 is provided with the retaining sleeve 13. The propeller 14 is connected to the retaining sleeve 13. The electric telescopic rod 15 is clamped to the front side of the propeller 14. The second push rod 16 is installed on the electric telescopic rod 15. Up to four connecting rods 17 are spaced apart at the front end of the second push rod 16. The piston 18 is connected between the front ends of the connecting rod 17 and the piston 18 slides with the inner wall of the suction tube 11. The elastic plate 19 is embedded in the front side of the piston 18, and the sealing ring 20 is connected to the elastic plate 19. The sealing ring 20 contacts and engages with the piston 18. The handles 21 are provided on both the left and right sides of the outer wall of the outer shell 1. The anti-slip pads 22 are installed on the inner wall of the contact plate 8. The anti-slip pads 22 can increase the contact surface between the contact plate 8 and the hole wall.

[0024] When workers need to adjust the resistance inside the mine blasting hole, they first insert the suction pipe 11 into the blasting hole. Then, they open the cylinder 3. The extension of the cylinder 3 causes the first push rod 4 and the slip ring 5 to move forward. When the roller 9 moves forward and contacts the mine, it causes the contact plate 8 and the support arm 7 to rotate adaptively. The rotating rod 6 assists the support arm 7 in rotating. When the contact plate 8 and the roller 9 are fully in contact with the mine, the workers can close the cylinder 3. The opening or closing diameter changes, thereby improving the stability of the outer shell 1. At this time, the workers can turn on the motor 12. The rotation of the output shaft of the motor 12 causes the retaining sleeve 13 to rotate, which in turn drives the propeller 14 to rotate. The rotation of the propeller 14 causes the surrounding air or water to flow, thus generating a reverse resistance. The propeller 14 draws air from the blast hole into the resistance-eliminating cylinder 10 through the suction pipe 11. The air in the resistance-eliminating cylinder 10 is then discharged from the exhaust pipe 101, thereby achieving the function of adjusting the resistance inside the mine blast hole. The heat generated by the cylinder 3 during operation is discharged from the heat sink 2. Different blast holes have different resistances. The operator can remove the propeller 14 from the sleeve 13 and replace it as needed. When the operator no longer needs to adjust the resistance inside the mine blast hole, the operator can restart the cylinder 3. The retraction of the cylinder 3 will cause the first push rod 4 and the slip ring 5 to move backward, and the roller 9 will move backward until it stops contacting the mine. The support arm 7 and the contact plate 8 can be folded for storage. The propeller 14 and the rotating rod 6 will cause the electric telescopic rod 15 and the second push rod 16 to rotate. The rotation of the second push rod 16 will cause the connecting rod 17 and the piston 18 to rotate. At this time, the operator can open the electric telescopic rod 15. The extension of the electric telescopic rod 15 will cause the second push rod 16 and the connecting rod 17 to move forward. The forward movement of the connecting rod 17 will cause the piston 18 to slide forward within the suction tube 11. When the electric telescopic rod 15 retracts, it will cause the second push rod 16 and the connecting rod 17 to move backward. Moving rod 17 backward causes piston 18 to slide rearward within suction tube 11. This rearward sliding of piston 18 assists in extracting air from the mine blasting hole, thereby shortening the resistance adjustment time. When workers do not need air from the mine blasting hole temporarily, they close the electric telescopic rod 15. When piston 18 slides forward, sealing ring 20 blocks piston 18, and elastic plate 19 resets sealing ring 20. When piston 18 slides backward, sealing ring 20 opens via elastic plate 19. The opening and closing of sealing ring 20 reduces air leakage.Workers can use the handle 21 to fix the outer casing 1 in a designated position, and the anti-slip pad 22 increases the friction between the contact plate 8 and the mine.

[0025] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent substitutions made within the principles of this utility model should be included within the protection scope of this utility model. Contents not described in detail in this utility model are existing technologies known to those skilled in the art.

Claims

1. A resistance adjustment device for blasting holes in mines, characterized in that, The system includes a housing (1), an exhaust pipe (101), a heat sink (2), a cylinder (3), a first push rod (4), a slip ring (5), a rotating rod (6), a support arm (7), a contact plate (8), a roller (9), a resistance-eliminating cylinder (10), a suction pipe (11), a motor (12), a ferrule (13), and a propeller (14). The housing (1) has a heat sink (2) on its rear side. The cylinder (3) is bolted to the middle of the heat sink (2). The first push rod (4) is connected to the telescopic rod of the cylinder (3). The housing (1) has a sliding slip ring (5). The front end of the first push rod (4) is connected to the middle of the rear side of the slip ring (5). Next, a rotating rod (6) is provided on the slip ring (5) at intervals. A support arm (7) is installed on each rotating rod (6). A contact plate (8) is welded to the outside of the support arm (7). A roller (9) is provided on each contact plate (8). A resistance elimination cylinder (10) is installed on the front side of the slip ring (5). An exhaust pipe (101) is embedded in the upper part of the resistance elimination cylinder (10). A suction pipe (11) is provided on the front side of the resistance elimination cylinder (10). A motor (12) is installed on the rear side of the inner wall of the resistance elimination cylinder (10) by bolts. A ferrule (13) is provided on the output shaft of the motor (12). A propeller (14) is connected to the ferrule (13).

2. The resistance adjustment device for a mine blasting hole according to claim 1, characterized in that, It also includes an electric telescopic rod (15), a second push rod (16), a connecting rod (17) and a piston (18). The electric telescopic rod (15) is snapped onto the front side of the propeller (14). The second push rod (16) is installed on the electric telescopic rod (15). Up to four connecting rods (17) are spaced apart at the front end of the second push rod (16). The piston (18) is connected between the front ends of the four connecting rods (17). The piston (18) slides in cooperation with the inner wall of the suction tube (11).

3. The resistance adjustment device inside a mine blasting hole according to claim 2, characterized in that, It also includes an elastic plate (19) and a sealing ring (20). The elastic plate (19) is embedded in the front side of the piston (18), and the sealing ring (20) is connected to the elastic plate (19). The sealing ring (20) is in contact with the piston (18).

4. The resistance adjustment device inside a mine blasting hole according to claim 3, characterized in that, It also includes a handle (21), with handles (21) provided on both the left and right sides of the outer wall of the outer shell (1).

5. The resistance adjustment device for a mine blasting hole according to claim 4, characterized in that, It also includes anti-slip pads (22). Anti-slip pads (22) are installed on the inner wall of the contact plate (8). The anti-slip pads (22) can increase the contact surface between the contact plate (8) and the hole wall.

6. The resistance adjustment device inside a mine blasting hole according to claim 5, characterized in that, The piston (18) is hollow in the middle. The hollow piston (18) can quickly draw the gas in the rupture hole into the suction tube (11).

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