Mining double-bag hole packer convenient to install

Abstract

The utility model relates to a mining double-bag hole packer convenient to install, and belongs to the technical field of underground blasting equipment. The double-bag hole packer comprises tamping bars, barbs, a grouting pipe, an inner bag, an outer bag and barbs, the tamping bars are hollow pipes, the tamping bars are sequentially connected through threads, a funnel-shaped fixing block is arranged at the top of the tamping bar at one end, the barbs are integrally in a conical umbrella rib shape, the bottoms of the barbs are inserted into the fixing block, the lower portions of the barbs are connected with the grouting pipe, and the inner bag is connected with the outer bag. An inner bag and an outer bag are arranged at the two ends of the grouting pipe respectively, and a plurality of grouting holes are formed in the grouting pipe. The device is simple in structure and convenient to operate, it is guaranteed that the bag hole packer does not move after being installed in place, hole sealing quality is guaranteed, and blasting safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to a mining double-bag hole sealer which is convenient to install and belongs to the technical field of underground blasting equipment. Background Art

[0002] In mining projects, deep hole blasting is sometimes used to block the transmission of high stresses and thus protect the tunnels. The key to safe blasting is hole sealing. The quality of hole sealing becomes a key factor in whether the pre-splitting blasting can successfully achieve the designed effect. Poor hole sealing quality can easily cause part of the blasting impact energy to be lost from the hole sealing position, which will directly affect the fracturing effect of the roof rock formation. The double-bag hole sealer is widely used in underground deep hole blasting operations with high safety requirements due to its good hole sealing quality. However, when the hole is deep, the bag at the bottom of the hole near the explosive end is inconvenient to install, which will cause installation difficulties and inadequate installation. For this reason, the utility model is proposed. Summary of the invention

[0003] In view of the deficiencies in the prior art, the utility model provides a double-bag hole sealer for mining that is easy to install and has a simple structure and is easy to operate. It ensures that the bag hole sealer will not move after being installed in place, thereby ensuring the quality of the hole sealing and the safety of blasting.

[0004] The technical solution of the utility model is as follows:

[0005] A double-bag hole sealer for mining which is easy to install comprises a gun stick, a barb, a grouting pipe, an inner bag, an outer bag and a barb, wherein the gun stick is a hollow tube, and a plurality of gun stick sections are connected in sequence by threads, a funnel-shaped fixing block is arranged on the top of the gun stick at one end, the barb is in a conical umbrella-shaped shape as a whole, the fixing block is inserted into the bottom of the barb, the lower part of the barb is connected to the grouting pipe by a connecting steel wire, an inner bag and an outer bag are arranged at both ends of the grouting pipe respectively, and a plurality of grouting holes are arranged on the grouting pipe to facilitate grouting operations on the inner bag, the outer bag and the borehole.

[0006] According to the preferred embodiment of the utility model, the barb is made of elastic steel wire, which moves forward when inserted into the drill hole without generating resistance. After reaching the set position, the gun stick is pulled out, and the barb is fixed in place under the action of the stretched rebound force, driving the inner bag, outer bag and grouting tube to remain in the drill hole.

[0007] Preferably, according to the utility model, a plurality of anti-slurry pipes are arranged side by side on one side of the grouting pipe, and the grouting depth is determined according to the position of the anti-slurry pipe from which liquid is discharged.

[0008] When in use, explosives are placed in the borehole, and then the mining double-bag hole sealer of the utility model is inserted, and the blasting stick moves into the borehole, driving the mining double-bag hole sealer and the explosives to move to the deep part of the borehole. At this time, the barb moves forward without generating resistance. After reaching the set depth, the blasting stick is pulled outward, and the bottom of the barb and the fixed block are a sliding set. Therefore, when the blasting stick is pulled out, the barb is separated from the fixed block. At this time, the barb is stretched outward due to elasticity and hangs on the rock wall, driving the inner bag, the outer bag, and the grouting pipe to remain in the borehole. After the blasting stick is pulled out of the borehole, the grouting pipe is connected to the grouting pump to carry out grouting operations. When slurry flows out of the anti-slurry pipe at the set grouting depth, the grouting is stopped, the inner bag and the outer bag are stretched open, and blasting can be carried out after the slurry solidifies.

[0009] The beneficial effects of the utility model are:

[0010] The utility model has the advantages of simple structure, convenient operation, and the funnel-shaped fixing block is convenient for the insertion of the barb, and the barb design can meet the characteristics that the blasting stick is not easy to fall off when inserted and is easy to pull out when withdrawn, ensuring that the bag hole sealer will not move after being installed in place, thereby ensuring the quality of the hole sealing and the safety of blasting. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the use state of the utility model;

[0013] Figure 3 It is a schematic diagram of the inner bag and the outer bag of the utility model being opened;

[0014] Figure 4 It is a projection diagram of the barb of the utility model in the cross-sectional direction;

[0015] In the figure: 1. drill hole, 2. barb, 3. connecting rod, 4. inner bag, 5. fixing block, 6. grouting hole, 7. connecting wire, 8. thread, 9. gun stick, 10. outer bag, 11. anti-slurry pipe, 12. grouting pipe, 13. explosive. DETAILED DESCRIPTION

[0016] The present invention will be further described below through embodiments and in conjunction with the accompanying drawings, but is not limited thereto.

[0017] Embodiment 1:

[0018] like Figure 1-4As shown, the present embodiment provides a double-bag hole sealer for mining which is easy to install, comprising a gun stick 9, a barb 2, a grouting pipe 12, an inner bag 4, an outer bag 10 and a barb 2, wherein the gun stick 9 is a hollow tube, and several sections of the gun stick 9 are connected in sequence by threads 8, a funnel-shaped fixing block 5 is arranged on the top of the gun stick 9 at one end, and the barb 2 is in the shape of a conical rib as a whole, that is, a plurality of inclined rods are arranged in a conical shape at the top of a connecting rod 3, which are similar to the rib structure, and the fixing block 5 is inserted into the bottom of the barb 2 (that is, the bottom of the connecting rod 3), and the grouting pipe 12 is connected to the lower part of the barb 2 by a connecting steel wire 7, and the inner bag 4 and the outer bag 10 are arranged at both ends of the grouting pipe 12, respectively, and the inner bag is close to the barb, and a plurality of grouting holes 6 are arranged on the grouting pipe 12, which are convenient for grouting operations on the inner bag, the outer bag and the borehole.

[0019] The gun stick is made of PVC material, and each section is 1 to 3 meters long.

[0020] The barb 2 is made of elastic steel wire. When inserted into the borehole, it moves forward without generating resistance. After reaching the set position, the gun stick 9 is pulled out, and the barb is fixed in place under the action of the stretched rebound force, driving the inner bag, outer bag, and grouting pipe to remain in the borehole.

[0021] A plurality of anti-slurry pipes 11 are arranged side by side on one side of the grouting pipe 12, and the grouting depth is determined according to the position of the anti-slurry pipe where the liquid is discharged.

[0022] When in use, explosive 13 is put into the borehole, and then the mining double-bag hole sealer of the utility model is inserted, and the gun stick moves into the borehole, driving the mining double-bag hole sealer and the explosive to move to the deep part of the borehole. At this time, the barb moves forward without generating resistance. After reaching the set depth, the gun stick is pulled outward, and the bottom of the barb and the fixed block are a sliding set. Therefore, when the gun stick is pulled out, the barb is separated from the fixed block. At this time, the barb is stretched outward due to elasticity and hangs on the rock wall, driving the inner bag, the outer bag, and the grouting pipe to remain in the borehole. After the gun stick is pulled out of the borehole, the grouting pipe is connected to the grouting pump to carry out grouting operations. When slurry flows out of the anti-slurry pipe at the set grouting depth, the grouting is stopped, the inner bag and the outer bag are stretched open, and blasting can be carried out after the slurry solidifies.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double bag hole sealer for mining that is easy to install, characterized in that: It includes a gun stick, a barb, a grouting pipe, an inner bag, an outer bag and a barb, wherein the gun stick is a hollow tube, and several sections of the gun stick are connected in sequence by threads, a funnel-shaped fixing block is arranged on the top of the gun stick at one end, the barb is in a conical umbrella-shaped shape as a whole, the fixing block is inserted into the bottom of the barb, the lower part of the barb is connected to a grouting pipe, inner bags and outer bags are arranged at both ends of the grouting pipe respectively, and a plurality of grouting holes are arranged on the grouting pipe.

2. The double-bag hole sealer for mining that is easy to install as claimed in claim 1 is characterized in that: The barb is made of elastic steel wire.

3. The double-bag hole sealer for mining that is easy to install as claimed in claim 1 is characterized in that: A number of anti-slurry pipes are arranged side by side on one side of the grouting pipe.

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