Stay wire expansion type interval charging device

Abstract

The utility model discloses a stay wire expansion type interval charging device which comprises an arc-shaped hollow frame, a probe rod, a stay rope, a clamping structure and a baffle, the center of the bottom of the arc-shaped hollow frame is fixedly connected with the top of the probe rod, a through hole is formed in the top of the arc-shaped hollow frame, the through hole in the top of the arc-shaped hollow frame is correspondingly connected with one end of a pipeline, and the baffle is connected to the pipeline in a sleeved mode. A pull rope is arranged in the pipeline in a penetrating mode, one end of the pull rope is fixed to a fixing ring arranged in the bottom of the arc-shaped hollow frame, the other end of the pull rope penetrates out of the top of the pipeline, and clamping structures are arranged on the pull rope and the top in the arc-shaped hollow frame. The arc-shaped hollow frame and the baffle are arranged, the structure is simple, installation and use are easy and convenient, explosive falling is reduced to a greater extent, interval areas are filled, the initial peak pressure of explosives on rocks around a blast hole is reduced, the blast pressure in the hole is distributed more evenly in the axial direction of the blast hole, the range of a fracture area is enlarged, and the effective utilization rate of explosive blasting energy is improved; the complexity of the whole device is greatly reduced through the buckles, and use and operation are simpler.

Description

Technical Field

[0001] The utility model relates to the technical field of explosive filling air gaps, in particular to a wire-expansion type interval charging device. Background Art

[0002] At present, most open-pit mines use air-interval charging for blasting. This charging method belongs to interval charging, and its main functions are: first, to increase the height of the charge column; second, to reduce the amount of charge; third, to prolong the action time of the explosive gas in the blasthole; fourth, to increase the action area of ​​the explosive gas; and fifth, to reduce the crushing rate of the medium. However, there is no fixed support in the air interval, which causes the upper charge to often fall into the interval area, affecting the blasting effect and quality.

[0003] Chinese patent number CN215177335U discloses an air separation device for a blasting hole, which includes a blasthole and a hopper. A support rod is movably inserted into the interior of the blasthole. A plurality of grooves are provided on the left side wall of the support rod. A limiting mechanism is provided inside each of the plurality of grooves. A first hollow cylinder is movably sleeved on the rod wall of the support rod. The limiting mechanism includes a limiting block, which is rotatably connected to the front and rear walls of the groove through two rotating shafts. A plurality of transversely arranged springs are fixedly connected to the right side wall of the limiting block. The right ends of the plurality of springs are fixedly connected to the bottom of the groove. A circular hole is provided in the middle of the lower side wall of the hopper.

[0004] The existing air spacing device has an unstable structure, cumbersome operation, and poor spacing effect, which reduces the charging efficiency and makes the energy utilization rate of the explosives low, greatly affecting the blasting quality and effect. Utility Model Content

[0005] The purpose of the utility model is to solve the problems of poor spacing effect, complicated operation and low charging efficiency in the prior art, and to propose a wire expansion type spacing charging device.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A pull-wire expansion type interval charging device includes an arc-shaped frame, a probe rod, a pull rope, a clamping structure and a baffle. The center of the bottom of the arc-shaped frame is fixedly connected to the top of the probe rod. The top of the arc-shaped frame is provided with a through hole. The through hole at the top of the arc-shaped frame corresponds to one end of a connecting pipe. The baffle is sleeved on the pipe. A pull rope is provided through the pipe. One end of the pull rope is fixed to a fixing ring provided in the bottom of the arc-shaped frame, and the other end of the pull rope passes through the top of the pipe. A clamping structure is provided on the pull rope and the top of the arc-shaped frame.

[0008] The clamping structure includes a clamping slot and a buckle. The clamping slot is fixed at the through hole at the top of the arc-shaped frame, and the buckle is fixed on the pull rope.

[0009] The clamping slot is two circular rings, which are arranged up and down. The two circular rings are fixedly connected by a connecting rod, and the gap between the connecting rods forms the clamping slot.

[0010] The buckle is an oblique elastic buckle, which includes an oblique connecting rod and an elastic rod at an angle. The upper end of the oblique connecting rod is fixed on the pull rope, the lower end of the oblique connecting rod is connected to one end of the elastic rod, and the other end of the elastic rod is fixedly connected to the pull rope, and the angle of the elastic rod is downward.

[0011] There are more than four card slots and more than four buckles.

[0012] The arc-shaped frame is in the shape of an arc lantern and includes an arc-shaped rod, a top fixing block and a bottom fixing block. The upper and lower ends of the arc-shaped rod are respectively fixed on the top fixing block and the bottom fixing block. There are more than four arc-shaped rods.

[0013] The pipe is made of PVC material; the arc-shaped frame, the pull rope and the clamping structure are made of polyethylene material.

[0014] The arc-shaped hollow frame can be expanded laterally by pulling the bottom of the frame through a pull rope, and the pull rope drives the buckle to be clamped in the card slot, thereby fixing the arc-shaped hollow frame on the inner wall of the air column.

[0015] The beneficial effects of the utility model are:

[0016] The arc-shaped frame and baffle are simple in structure, easy to install and use, and can greatly reduce the drop of explosives, fill the gap area, reduce the initial peak pressure of explosives on the rocks around the blasthole, make the explosion pressure in the hole more evenly distributed along the axial direction of the blasthole, expand the range of the rupture zone, and improve the effective utilization rate of the explosive blasting energy;

[0017] The use of buckles greatly reduces the complexity of the entire device and makes it easier to use and operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a bottom view of the structure of the utility model;

[0019] Figure 2 It is a partial top view of the structure of the utility model;

[0020] Figure 3 This is a diagram of the internal buckle structure of the utility model;

[0021] Figure 4 This is a diagram of the buckle connection structure of the utility model;

[0022] Figure 5 This is a structural diagram of the implementation of the utility model;

[0023] In the figure: 1. Arc-shaped frame; 11. Top fixing block; 12. Bottom fixing block; 2. Probe rod; 3. Pull rope; 31. Buckle; 4. Slot; 5. Baffle; 6. Pipe; 7. Fixing ring; 8. Air column; 9. Explosive; 10. Cannon mud. DETAILED DESCRIPTION

[0024] Example 1

[0025] like Figure 1-5 As shown, the utility model provides a pull-wire expansion type interval charging device, which comprises an arc-shaped frame 1, a probe rod 2, a pull rope 3, a clamping structure and a baffle 5.

[0026] The arc frame 1 is in the shape of an arc lantern and includes an arc rod, a top fixing block 11 and a bottom fixing block 12. The upper and lower ends of the arc rod are fixed on the top fixing block 11 and the bottom fixing block 12 respectively. There are four arc rods.

[0027] The center of the bottom fixing block 12 of the arc-shaped frame 1 is fixedly connected to the top of the probe rod 2. A through hole is provided on the top fixing block 11 of the arc-shaped frame 1. The through hole of the top fixing block 11 corresponds to one end of the connecting pipe 6. The baffle 5 is sleeved on the pipe 6. A pull rope 3 is provided through the pipe 6. One end of the pull rope 3 is fixed to the fixing ring 7 provided in the bottom of the arc-shaped frame 1, and the other end of the pull rope 3 passes through the top of the pipe 6. A clamping structure is provided between the pull rope 3 and the top of the inner part of the arc-shaped frame 1;

[0028] The clamping structure includes a clamping slot 4 and a clamping buckle 31. The clamping slot 4 is fixed to the through hole at the top of the arc-shaped frame 1, and the clamping buckle 31 is fixed to the pull rope 3.

[0029] The card slot 4 is composed of two circular rings, which are arranged one above the other and fixedly connected by a connecting rod. The gap between the connecting rods forms the card slot 4. There are four card slots 4.

[0030] The buckle 31 is an oblique elastic buckle, which includes an oblique connecting rod and an elastic rod at an angle. The upper end of the oblique connecting rod is fixed on the pull rope 3, the lower end of the oblique connecting rod is connected to one end of the elastic rod, and the other end of the elastic rod is fixedly connected to the pull rope 3, with the angle of the elastic rod facing downward; there are 4 buckles 31.

[0031] Example 2

[0032] like Figure 5 As shown, the utility model provides a pull-wire expansion type interval charging device, which comprises an arc-shaped frame 1, a probe rod 2, a pull rope 3, a clamping structure and a baffle 5.

[0033] The arc frame 1 is in the shape of an arc lantern and includes an arc rod, a top fixing block 11 and a bottom fixing block 12. The upper and lower ends of the arc rod are fixed on the top fixing block 11 and the bottom fixing block 12 respectively. There are 8 arc rods.

[0034] The center of the bottom fixing block 12 of the arc-shaped frame 1 is fixedly connected to the top of the probe rod 2. A through hole is provided on the top fixing block 11 of the arc-shaped frame 1. The through hole of the top fixing block 11 corresponds to one end of the connecting pipe 6. The baffle 5 is sleeved on the pipe 6. A pull rope 3 is provided through the pipe 6. One end of the pull rope 3 is fixed to the fixing ring 7 provided in the bottom of the arc-shaped frame 1, and the other end of the pull rope 3 passes through the top of the pipe 6. A clamping structure is provided between the pull rope 3 and the top of the inner part of the arc-shaped frame 1;

[0035] The clamping structure includes a clamping slot 4 and a clamping buckle 31. The clamping slot 4 is fixed to the through hole at the top of the arc-shaped frame 1, and the clamping buckle 31 is fixed to the pull rope 3.

[0036] The card slot 4 is composed of two circular rings, which are arranged one above the other and fixedly connected by a connecting rod. The gap between the connecting rods forms the card slot 4. There are 6 card slots 4.

[0037] The buckle 31 is an oblique elastic buckle, which includes an oblique connecting rod and an elastic rod at an angle. The upper end of the oblique connecting rod is fixed to the pull rope 3, and the lower end of the oblique connecting rod is connected to one end of the elastic rod. The other end of the elastic rod is fixed to the pull rope 3, and the angle of the elastic rod is downward. There are 6 buckles 31.

[0038] Specifically, the air spacer separates the explosives 9 in the blasthole. A certain amount of explosives 9 is first loaded into the blasthole, and then the air spacer is loaded into the air column 8. The distance between the air spacer and the bottom explosives 9 is determined by the probe 2. The baffle 5 is sleeved on the pipe 6. By pulling the pull rope 3, the arc-shaped hollow frame is expanded laterally. The pull rope 3 drives the buckle 31 so that the buckle 31 is engaged in the slot 4, and the arc-shaped hollow frame is fixed to the inner wall of the air column 8. The fixation of the air spacer is completed, and then the explosives 9 are loaded on the upper part of the spacer and the gun mud 10 is filled.

Claims

1. A pull-wire expansion type interval charging device, characterized in that: It includes an arc-shaped frame, a probe rod, a pull rope, a clamping structure and a baffle. The center of the bottom of the arc-shaped frame is fixedly connected to the top of the probe rod. A through hole is provided at the top of the arc-shaped frame. The through hole at the top of the arc-shaped frame corresponds to one end of a connecting pipe. A baffle is sleeved on the pipe. A pull rope is provided through the pipe. One end of the pull rope is fixed to a fixing ring provided in the bottom of the arc-shaped frame, and the other end of the pull rope passes through the top of the pipe. A clamping structure is provided between the pull rope and the top of the arc-shaped frame.

2. A wire expansion type interval charging device according to claim 1, characterized in that: The clamping structure comprises a clamping slot and a buckle, wherein the clamping slot is fixed at a through hole at the top of the arc-shaped frame, and the buckle is fixedly arranged on the pull rope.

3. A wire expansion type interval charging device according to claim 2, characterized in that: The clamping slot is two circular rings, which are arranged up and down and fixedly connected by a connecting rod. The gap between the connecting rods forms the clamping slot.

4. A wire expansion type interval charging device according to claim 3, characterized in that: The buckle is an oblique elastic buckle, which includes an oblique connecting rod and an elastic rod with an angle. The upper end of the oblique connecting rod is fixed on the pull rope, the lower end of the oblique connecting rod is connected to one end of the elastic rod, and the other end of the elastic rod is fixedly connected to the pull rope, and the angle of the elastic rod is downward.

5. A wire-expandable spaced charge device according to claim 4, characterized in that: There are more than four card slots and more than four buckles.

6. A wire expansion type interval charging device according to claim 1, characterized in that: The arc-shaped frame is in the shape of an arc lantern, and comprises an arc-shaped rod, a top fixing block and a bottom fixing block. The upper and lower ends of the arc-shaped rod are respectively fixed on the top fixing block and the bottom fixing block, and more than four arc-shaped rods are provided.

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