CN211601758U - Connectable explosive loading spacer - Google Patents
Connectable explosive loading spacer Download PDFInfo
- Publication number
- CN211601758U CN211601758U CN201922323942.4U CN201922323942U CN211601758U CN 211601758 U CN211601758 U CN 211601758U CN 201922323942 U CN201922323942 U CN 201922323942U CN 211601758 U CN211601758 U CN 211601758U
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- China
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- stay tube
- supporting tube
- spacer
- screw thread
- external screw
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Abstract
The utility model relates to a butt joint formula powder charge spacer, a serial communication port, including the upper portion stay tube that has the roof disc, have the lower part stay tube of bottom plate disc and stay tube in the middle of an at least festival the lower extreme of upper portion stay tube be equipped with protruding external screw thread I, the upper end inboard of stay tube in the middle of open have with the protruding external screw thread assorted internal thread of the lower extreme of upper portion stay tube, the lower extreme of stay tube is equipped with the protruding external screw thread II the same with protruding external screw thread I in the middle of, the upper end inboard of stay tube in the lower part open have with the protruding external screw thread assorted internal thread of the lower extreme of middle part stay tube, will upper portion stay tube, middle stay tube and lower part stay tube threaded connection constitute butt joint formula. The advantages are that: the spacer can accurately control the spacing length, is simple and convenient to operate, and is not influenced by factors such as the humidity in the blast hole, the roughness of the hole wall and the like, so that the explosive charging efficiency is improved, and the blasting effect is improved.
Description
Technical Field
The utility model belongs to mining blasting engineering field especially relates to a connectable powder charge spacer.
Background
With the improvement of blasting technology, in order to improve the blasting effect of explosives, a plurality of charging methods appear, and the current better charging method used in mines is air interval charging. The air spaced charging has the advantages of uniform stress distribution of the hole wall, strong rock breaking capability, good damping effect and the like. However, the air spacer used in the existing air spaced charging is greatly influenced by factors such as the humidity in the blast hole, the roughness of the hole wall and the like, and the efficiency is not ideal.
The invention content is as follows:
the utility model aims at providing a can connect formula powder charge spacer for the spacer can accurate control interval length, easy and simple to handle, not influenced by factors such as humidity, pore wall roughness in the big gun hole, and then reach and improve powder charge efficiency, improve the purpose of blasting effect.
The utility model discloses a realize through following technical scheme:
the utility model discloses a connectable powder charge spacer, a serial communication port, including the upper portion stay tube that has the roof disc, have the lower part stay tube of bottom plate disc and at least one section middle stay tube the lower extreme of upper portion stay tube be equipped with protruding external screw thread I the upper end inboard of middle stay tube open have with the protruding external screw thread assorted internal thread of the lower extreme of upper portion stay tube the lower extreme of middle stay tube be equipped with the protruding external screw thread II that I is the same of protruding external screw thread the upper end inboard of lower part stay tube open have with the protruding external screw thread assorted internal thread of the lower extreme of middle part stay tube, will upper portion stay tube, middle stay tube and lower part stay tube threaded connection constitute connectable powder charge spacer together, the upper portion of roof disc is equipped with the barrier ring device.
Preferably, the blocking ring device comprises a blocking ring which is larger than the blast hole and has a folding structure of a central fixing ring, and a protection ring arranged on the edge of the blocking ring, wherein the central fixing ring is concentrically and fixedly connected with the top of the top plate disc.
The diameter of the top plate disc and the bottom plate disc is designed to be smaller than the diameter of the blast hole.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the interval length of control big gun hole powder charge that can be accurate sets up the number of stay tube according to the different length of required control, and then control interval length.
2. The gravity action of the explosive is fully utilized to ensure that the blocking device is fully contacted with the inner wall of the blast hole, so that the effect of blocking the explosive by the blocking device is more obvious.
3. Because the utility model discloses the diameter design of roof disc and bottom plate disc is less than the big gun hole diameter, does not contact with the big gun hole inner wall, can ignore the influence of downthehole factor to the spaced charging completely.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an exploded view of fig. 1.
Figure 3 is a top view of a blocker ring assembly of the present invention.
Fig. 4 is a schematic view illustrating a state in which the present invention is used in a blast hole.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in figures 1-4, the utility model discloses a connectable type powder charge spacer, which is characterized in that the device comprises an upper supporting tube 2-1 with a top plate disc 1, a lower supporting tube 2-3 with a bottom plate disc 3 and at least one section of middle supporting tube 2-2, wherein the lower end of the upper supporting tube 2-1 is provided with a convex external thread I5, the inner side of the upper end of the middle supporting tube 2-2 is provided with an internal thread 6 matched with the convex external thread I5 at the lower end of the upper supporting tube, the lower end of the middle supporting tube 2-2 is provided with a convex external thread II 7 same with the convex external thread I5, the inner side of the upper end of the lower supporting tube 2-3 is provided with an internal thread 8 matched with the convex external thread II 7 at the lower end of the middle supporting tube 2-2, the upper supporting tube 2-1, The middle supporting tube 2-2 and the lower supporting tube 2-3 are connected together by screw thread to form an attachable explosive charging spacer, the whole supporting tube is mainly used for supporting the weight of upper explosive, supporting tubes with different lengths can be designed, and the interval length is controlled by controlling the number of the supporting tubes with different lengths; the upper part of the top plate disc 1 is provided with a stop ring device 4.
Preferably, the blocking ring device 4 comprises a blocking ring 4-2 which is larger than the blast hole and has a folding structure of a central fixing ring 4-1, and a protective ring 4-3 arranged at the edge of the blocking ring 4-2, wherein the central fixing ring 4-1 is concentrically and fixedly connected with the top of the top plate disc 1.
The blocking ring 4-2 with the folding structure is fully unfolded by using the gravity of the explosive to be contacted with the inner wall of the blast hole, so that the explosive is prevented from falling from a gap between the top plate disc and the blast hole, and the edge protection ring 4-3 is used for protecting a detonating tube and the like which need to pass through the spacer.
As an embodiment, the diameter design of roof disc 1 and bottom plate disc be less than the big gun hole diameter. The diameter of a blast hole is 310 mm, the interval length is 1 m, the diameter of the top plate disc 1 is 280 mm, the top plate disc is used for bearing upper explosives, and the top plate disc is designed to be easily placed into the blast hole.
The utility model discloses roof disc and bottom disc adopt the disc design, and effective control big gun hole bottom or the roughness of contact explosive improve the blasting effect. The diameter of the top plate disc, the bottom disc and the supporting tube is slightly smaller than that of the blast hole, so that the influence of other factors in the hole on the blasting effect is completely avoided.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (3)
1. A connectable type explosive loading spacer is characterized by comprising an upper supporting tube with a top plate disc, a lower supporting tube with a bottom plate disc and at least one section of middle supporting tube, wherein a raised external thread I is arranged at the lower end of the upper supporting tube, an internal thread matched with the raised external thread at the lower end of the upper supporting tube is arranged on the inner side of the upper end of the middle supporting tube, a raised external thread II identical with the raised external thread I is arranged at the lower end of the middle supporting tube, an internal thread matched with the raised external thread at the lower end of the middle supporting tube is arranged on the inner side of the upper end of the lower supporting tube, the upper supporting tube, the middle supporting tube and the lower supporting tube are in threaded connection to form the connectable type explosive loading spacer, and a blocking ring device is arranged at.
2. A projectile charging spacer as defined in claim 1, wherein said blocking ring means comprises a blocking ring of a folded configuration with a central retainer ring larger than the blasthole and a guard ring disposed at the edge of the blocking ring, said central retainer ring being fixedly attached concentrically to the top of the top disk.
3. The retrievable charge spacer of claim 1, wherein the top and bottom disks are of a diameter designed to be less than the diameter of the borehole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922323942.4U CN211601758U (en) | 2019-12-23 | 2019-12-23 | Connectable explosive loading spacer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922323942.4U CN211601758U (en) | 2019-12-23 | 2019-12-23 | Connectable explosive loading spacer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211601758U true CN211601758U (en) | 2020-09-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922323942.4U Active CN211601758U (en) | 2019-12-23 | 2019-12-23 | Connectable explosive loading spacer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211601758U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112129187A (en) * | 2020-10-20 | 2020-12-25 | 昆明理工大学 | Air interval charging structure and charging method |
-
2019
- 2019-12-23 CN CN201922323942.4U patent/CN211601758U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112129187A (en) * | 2020-10-20 | 2020-12-25 | 昆明理工大学 | Air interval charging structure and charging method |
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