Charging device of blasting tube

Abstract

The invention relates to the technical field of blasting tube charging, and particularly discloses a blasting tube charging device which comprises a filling tube, a fixing frame is installed at the front end of the filling tube and used for fixing a blasting tube, and a material extruding assembly is installed at the rear end of the filling tube and used for extruding a detonating agent in the filling tube into the blasting tube; the fixing frame comprises a front clamping end and a rear clamping end, and the front clamping end and the rear clamping end are connected through a connecting assembly. The front clamping end comprises a cover plate, an annular rack and a bottom plate, corresponding round holes are formed in the cover plate and the bottom plate and used for allowing the blasting pipe to pass through, a plurality of gears are installed on the cover plate and annularly distributed, the annular rack is meshed with each gear, and blades are fixedly connected to the gears; the gears can rotate synchronously in the same direction by rotating the annular rack, and then the blades clamp the blasting pipe. The problem that in the background technology, a blasting pipe needs to be provided with a plurality of charging devices with different diameters is solved.

Description

Technical Field

[0001] The invention relates to the technical field of blasting tube charging, and in particular to a charging device for a blasting tube. Background Art

[0002] The charging device of a blasting tube refers to a tool or mechanical device specifically used to accurately and safely load the detonating agent (such as detonator agent, induction explosive) or main explosive into the interior of a blasting tube (such as a detonator tube, a plastic detonator shell).

[0003] In the field of blasting engineering, slotted charge blasting tubes are widely used in mines, tunnels and other scenarios because they can achieve directional crack control. Slotted charge blasting tubes require the use of charging devices for charging, but the charging effect of existing charging devices has technical defects: existing charging devices are of fixed size, and in order to cope with a variety of different blasting environments, the diameters and lengths of blasting tubes are different. In order to charge blasting tubes of different diameters and lengths, multiple charging devices of different diameters need to be prepared. Summary of the Invention

[0004] The object of the present invention is to provide a charging device for a bursting tube, so as to solve the problem in the background art that a bursting tube needs to be equipped with a plurality of charging devices with different diameters.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: A charging device for a blasting tube comprises a filling tube, a fixing frame is installed at the front end of the filling tube, the fixing frame is used to fix the blasting tube, and an extrusion assembly is installed at the rear end of the filling tube, the extrusion assembly is used to squeeze the explosive in the filling tube into the blasting tube; the fixing frame comprises a front clamping end and a rear clamping end, both of which have a circular channel for the blasting tube to pass through, and the front clamping end and the rear clamping end are connected by a connecting assembly; the front clamping end comprises a cover plate, an annular rack and a bottom plate, and the cover plate and the bottom plate are provided with corresponding circular holes for the blasting tube to pass through, and a plurality of gears are installed on the cover plate, and the plurality of gears are distributed in a ring shape, and the annular rack is meshed with each gear, and a blade is fixedly connected to the gear; rotating the annular rack can make the plurality of gears rotate synchronously in the same direction, thereby causing the blades to aggregate and clamp the blasting tube; the rear clamping end has the same structure as the front clamping end.

[0006] Furthermore, the bottom plate of the front clamping end and the bottom plate of the rear clamping end are connected through a plurality of telescopic sleeves.

[0007] Furthermore, a driving gear is provided on the cover plate of the front clamping end, a part of the driving gear is located outside the cover plate, and the other part of the driving gear is located inside the cover plate and meshes with the annular rack inside the front clamping end; another driving gear is provided on the cover plate of the rear clamping plate, and the driving gear meshes with the annular rack inside the rear clamping end.

[0008] Furthermore, a fixture is installed at the front end of the filling tube, and the fixture is installed on the outer wall of the front end of the filling tube through its own internal thread; one end of the fixture is provided with a groove, and the inner wall of the groove is provided with a notch; the rear clamping end is installed in the groove, and the driving gear of the rear clamping end is located in the notch.

[0009] Furthermore, the extrusion assembly includes a handle, a metal quick release is installed at the front end of the handle, and the metal quick release is used to fix the handle to the rear end of the filling tube; it also includes a push rod, the push rod passes through the front and rear ends of the handle, a push cover is installed at the front end of the push rod, and a linear rack is provided at the bottom of the push rod; a rotatable ratchet and a rotatable pawl are provided in the handle, the ratchet is engaged with the linear rack of the push rod, and one end of the pawl is engaged with the ratchet; a rotatable trigger is also provided in the handle, the trigger includes a pulling end and a driving end, the pulling end is located outside the handle, and the driving end abuts against the other end of the pawl. When the pulling end of the trigger is pressed, the driving end of the trigger will squeeze the other end of the pawl, and then one end of the pawl drives the ratchet to rotate, so that the push rod is squeezed toward the filling tube.

[0010] Furthermore, a first return spring and a second return spring are installed in the handle; one end of the first return spring is connected to the handle, and the other end is connected to the pawl; one end of the second return spring is connected to the handle, and the other end is connected to the trigger.

[0011] Furthermore, a stop block is slidably connected to the handle for engaging the linear rack of the push rod to prevent the push rod from sliding relative to the handle.

[0012] Compared with the prior art, the present invention has the following advantages and beneficial effects: The front end and rear end of the blasting tube are placed in the circular channels of the front clamping end and the rear clamping end respectively. By rotating the annular rack, the multiple gears distributed in the ring rotate synchronously in the same direction. Since the blades are connected to the gears and the multiple blades are also distributed in the ring, the rotation of the multiple gears causes the multiple blades to rotate in the same direction (clockwise or counterclockwise). Then the multiple blades are retracted together to clamp blasting tubes of different diameters, completing the diameter matching between the fixed frame and the blasting tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an overall diagram of the present invention.

[0014] Figure 2 This is a disassembled diagram of the front clamping end of the fixing bracket.

[0015] Figure 3 This is a disassembled view of the front clamping end from another perspective.

[0016] Figure 4 Figure 2 is a diagram of the fixed bracket adjustment process.

[0017] Figure 5 This is the structure diagram of the packing tube.

[0018] Figure 6 This is a cross-sectional view of the extrusion component.

[0019] The meanings of the numbers in the figure are: 1-fixed frame, 101-cover plate, 102-drive gear, 103-annular rack, 104-connecting shaft, 105-blade, 106-base plate, 107-telescopic sleeve, 108-gear, 2-filling tube, 201-fixer, 3-extrusion assembly, 301-metal quick release, 302-handle, 303-push rod, 304-ratchet, 305-pawl, 306-trigger, 307-second return spring, 308-stop block, 309-first return spring. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention, so as to have a further understanding of the concept of the present invention, the technical problems solved, the technical features constituting the technical solutions and the technical effects brought about.

[0021] like Figures 1-4 As shown, a charging device for a blasting tube comprises a filling tube 2, a fixing frame 1 is installed at the front end of the filling tube 2, the fixing frame 1 is used to fix the blasting tube, and an extrusion assembly 3 is installed at the rear end of the filling tube 2, the extrusion assembly 3 is used to squeeze the explosive in the filling tube 2 into the blasting tube; the fixing frame 1 comprises a front clamping end and a rear clamping end, both of which have a circular channel for the blasting tube to pass through, and the front clamping end and the rear clamping end are connected by a connecting assembly; the front clamping end comprises a cover plate 101, an annular Corresponding circular holes are provided on the rack 103 and the bottom plate 106, the cover plate 101 and the bottom plate 106 for the passage of the blasting tube. A plurality of gears 108 are installed on the cover plate 101. The plurality of gears 108 are distributed in a ring shape. The annular rack 103 is engaged with each gear 108. The gears 108 are fixedly connected to the blades 105. Rotating the annular rack 103 can make the plurality of gears 108 rotate synchronously in the same direction, thereby causing the blades 105 to aggregate and clamp the blasting tube. The rear clamping end has the same structure as the front clamping end.

[0022] The main improvement of the present invention lies in the fixing frame 1, which is used to secure blasting tubes. In different blasting environments, the diameters and lengths of blasting tubes required vary. The front and rear clamping ends of the present invention are each provided with a circular channel. The front and rear ends of the blasting tube are placed within the circular channels, respectively. Rotating the annular rack 103 causes multiple gears 108, arranged in a ring, to rotate synchronously in the same direction. Because blades 105 are connected to gears 108 and are arranged in a ring, one side of each blade 105 forms a quasi-circular channel. The rotation of the gears 108 causes the blades 105 to rotate in the same direction (either clockwise or counterclockwise), expanding or contracting the quasi-circular channel formed by the blades 105. This allows blasting tubes of varying diameters to be clamped, effectively matching the diameter of the fixing frame 1 to the tube. After clamping, the extrusion assembly 3 and the filling tube 2 are then used to load the blasting tubes. The multiple blades 105 clamp from multiple directions, and the multiple side faces shrink or loosen by the same distance, so that the axis of the blasting tube is always consistent with the axis of the filling tube 2, which can reduce the charge deviation after the blades 105 are adjusted.

[0023] Furthermore, the base plate 106 of the front clamping end and the base plate 106 of the rear clamping end are connected by multiple telescopic sleeves 107. The provision of telescopic sleeves 107 allows for adjustable spacing between the front and rear clamping ends, thereby enabling the clamping of blasting tubes of varying lengths. The adjusted stability of the telescopic sleeves 107 can be adjusted by adjusting the friction level of the telescopic sleeves 107 in actual use. The inherent friction of the telescopic sleeves 107 (dependent on the material used, the size of the sliding rod within the telescopic sleeves, and the friction of their surface) ensures that the front and rear clamping ends remain relatively stable in the absence of significant external forces, eliminating the need for locking and ensuring that manual force can be used to achieve adjustment when necessary.

[0024] like Figure 5 As shown, the cover plate 101 of the front clamping end is further provided with a drive gear 102, a portion of which is located outside the cover plate 101, and the other portion of which is located inside the cover plate 101 and meshes with an annular rack 103 inside the front clamping end; another drive gear 102 is provided on the cover plate 101 of the rear clamping plate, and meshes with the annular rack 103 inside the rear clamping end. The provision of the drive gear 102 allows the operator to adjust the annular rack 103 from the outside of the cover plate 101, which is more convenient.

[0025] Furthermore, a holder 201 is mounted on the front end of the stuffing tube 2. The holder 201 is mounted on the outer wall of the front end of the stuffing tube 2 via its internal threads. One end of the holder 201 is provided with a groove, and the inner wall of the groove is provided with a notch. The rear clamping end is mounted in the groove, and the drive gear 102 of the rear clamping end is located in the notch. The provision of the holder 201 facilitates the fixing of the fixing frame 1 to the stuffing tube 2.

[0026] like Figure 6 As shown, further, the extrusion assembly 3 includes a handle 302, the front end of the handle 302 is equipped with a metal quick release 301, the metal quick release 301 is used to fix the handle 302 to the rear end of the filling tube 2; it also includes a push rod 303, the push rod 303 passes through the front and rear ends of the handle 302, the front end of the push rod 303 is equipped with a push cover, and the bottom of the push rod 303 is provided with a linear rack; a rotatable ratchet 304 and a rotatable pawl 305 are provided in the handle 302, and the ratchet 304 and the rotatable pawl 305 are provided. The linear rack of the push rod 303 is engaged, and one end of the pawl 305 is engaged with the ratchet 304; a rotatable trigger 306 is also provided in the handle 302, and the trigger 306 includes a triggering end and a driving end. The triggering end is located outside the handle 302, and the driving end abuts against the other end of the pawl 305. When the triggering end of the trigger 306 is pressed, the driving end of the trigger 306 will squeeze the other end of the pawl 305, and then one end of the pawl 305 drives the ratchet 304 to rotate, so that the push rod 303 is squeezed toward the filling tube 2. After the trigger 306, pawl 305 and ratchet 304 structures are set, pressing the trigger 306 can make the push rod 303 squeeze toward the filling tube 2, completing the squeezing of the filling tube 2, and then squeezing the explosive in the filling tube 2 into the blasting tube to complete the filling. The distance that the push rod 303 can be pushed forward by a single press of the trigger 306 is limited, and it needs to be reset before pushing again, so that the push of the push rod 303 is limited, and the problem of excessive one-time pushing will not occur, thereby achieving precise control of the charging density.

[0027] Furthermore, a first return spring 309 and a second return spring 307 are installed in the handle 302; one end of the first return spring 309 is connected to the handle 302, and the other end is connected to the pawl 305; one end of the second return spring 307 is connected to the handle 302, and the other end is connected to the trigger 306. The first return spring 309 and the second return spring 307 are provided. After the trigger 306 is squeezed, the trigger 306 is released so that the trigger 306 and the pawl 305 rebound and reset, and the next squeeze can be completed. The ratchet 304 and the pawl 305 themselves are conventional structures. The effect is that when the pawl 305 pushes the ratchet 304 in different directions, different effects are presented, such as Figure 6As shown, in the initial state, the pawl 305 rotates clockwise, and the spike on the right side of the pawl 305 squeezes the ratchet 304 to complete the push. During the subsequent reset process, the pawl 305 rotates counterclockwise, and the curved surface on the left side does not produce hard squeezing, and the reset is completed without affecting the rotation of the ratchet 304. (In practice, counterclockwise rotation still produces squeezing, but this squeezing is usually completed with a small amount of retraction of the ratchet 304, which basically achieves the effect of the pawl 305 pushing the ratchet 304 in one direction.) During use, the operator is usually required to manually fix the relative position of the pusher rod 303 to avoid causing the pusher rod 303 to retract to a large extent.

[0028] Furthermore, a stopper 308 is slidably connected to the handle 302, which is used to engage the linear rack of the pusher rod 303 to prevent relative sliding of the pusher rod 303. The stopper 308 engages the linear rack of the pusher rod 303, locking the pusher rod 303. The present invention cannot trigger this. Sliding the stopper 308 away from the linear rack unlocks the pusher rod 303, allowing normal operation of the present invention. Because the stopper 308 would automatically slide down under the action of gravity, a conventional locking structure, such as a snap lock or a taper, is added to the stopper 308 to prevent it from sliding down.

[0029] The terms "connection" and "fixation" appearing in the description of the present invention may refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meanings of the above terms in the present invention shall be understood according to the specific circumstances.

[0030] In the description of the present invention, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., which indicate the orientation or position relationship, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A charging device for a blasting tube, characterized by: The invention comprises a filling tube (2), a fixing frame (1) is installed at the front end of the filling tube (2), the fixing frame (1) is used to fix the blasting tube, and a material extrusion component (3) is installed at the rear end of the filling tube (2), the material extrusion component (3) is used to squeeze the detonating agent in the filling tube (2) into the blasting tube; The fixing frame (1) comprises a front clamping end and a rear clamping end, both of which have a circular passage for the blasting tube to pass through, and the front clamping end and the rear clamping end are connected by a connecting assembly; The front clamping end includes a cover plate (101), an annular rack (103) and a bottom plate (106). The cover plate (101) and the bottom plate (106) are provided with corresponding circular holes for the blasting tube to pass through. A plurality of gears (108) are installed on the cover plate (101). The plurality of gears (108) are distributed in an annular shape. The annular rack (103) is meshed with each gear (108). A blade (105) is fixedly connected to the gear (108). Rotating the annular rack (103) can cause the plurality of gears (108) to rotate synchronously in the same direction, thereby causing the blades (105) to aggregate and clamp the blasting tube. The rear clamping end has the same structure as the front clamping end.

2. A charge device for a blasting tube according to claim 1, characterized in that: The bottom plate (106) of the front clamping end and the bottom plate (106) of the rear clamping end are connected via a plurality of telescopic sleeves (107).

3. The explosive charging device for a blasting tube according to claim 1, characterized in that: A driving gear (102) is provided on the cover plate (101) of the front clamping end, a portion of the driving gear (102) is located outside the cover plate (101), and another portion of the driving gear (102) is located inside the cover plate (101) and meshes with an annular rack (103) inside the front clamping end; Another driving gear (102) is provided on the cover plate (101) of the rear clamping plate, and the driving gear (102) is engaged with an annular rack (103) in the rear clamping end.

4. A charge device for a blasting tube according to claim 3, characterized in that: The front end of the stuffing tube (2) is provided with a holder (201), and the holder (201) is mounted on the outer wall of the front end of the stuffing tube (2) via its internal thread; One end of the fixer (201) is provided with a groove, and the inner wall of the groove is provided with a notch; The rear clamping end is installed in the groove, and the driving gear (102) of the rear clamping end is located in the notch.

5. The explosive charging device for a bursting tube according to claim 1, characterized in that: The extrusion assembly (3) comprises a handle (302), a metal quick release (301) being installed at the front end of the handle (302), and the metal quick release (301) being used to fix the handle (302) to the rear end of the filling tube (2); It also includes a push rod (303), which passes through the front and rear ends of the handle (302), a push cover is installed at the front end of the push rod (303), and a linear rack is provided at the bottom of the push rod (303); A rotatable ratchet (304) and a rotatable pawl (305) are provided in the handle (302), the ratchet (304) is engaged with the linear rack of the push rod (303), and one end of the pawl (305) is engaged with the ratchet (304); A rotatable trigger (306) is further provided in the handle (302). The trigger (306) includes a trigger end and a driving end. The trigger end is located outside the handle (302). The driving end abuts against the other end of the pawl (305). When the trigger (306) is pressed, the driving end of the trigger (306) squeezes the other end of the pawl (305), thereby causing one end of the pawl (305) to drive the ratchet (304) to rotate, so that the push rod (303) is squeezed toward the filling tube (2).

6. The explosive charging device for a bursting tube according to claim 5, characterized in that: A first return spring (309) and a second return spring (307) are also installed in the handle (302); One end of the first return spring (309) is connected to the handle (302), and the other end is connected to the pawl (305); One end of the second return spring (307) is connected to the handle (302), and the other end is connected to the trigger (306).

7. The explosive charging device for a bursting tube according to claim 6, characterized in that: The handle (302) is also slidably connected to a stop block (308) for engaging the linear rack of the push rod (303) to prevent the push rod (303) from sliding relative to each other.

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