CN213421982U - Charging device for pre-cracked hole - Google Patents
Charging device for pre-cracked hole Download PDFInfo
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- CN213421982U CN213421982U CN202021275841.0U CN202021275841U CN213421982U CN 213421982 U CN213421982 U CN 213421982U CN 202021275841 U CN202021275841 U CN 202021275841U CN 213421982 U CN213421982 U CN 213421982U
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- cylindrical
- cylindrical shell
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- detonating cord
- cartridge
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Abstract
The utility model discloses a charging device of a pre-splitting hole, which relates to the technical field of open mine blasting and is used for solving the problems existing in the existing pre-splitting hole charging method, the utility model discloses a cylindrical shell, which consists of two semi-cylindrical shells, the inner diameter of the cylindrical shell is smaller than the sum of the outer diameters of an explosive fuse and a cartridge, conical covers are detachably arranged at the upper end and the lower end of the cylindrical shell, each conical cover consists of a cylindrical part and a conical part, the cylindrical part is matched with the cylindrical shell, and each conical part is provided with a pair of explosive fuse holes; the utility model has the advantages of simple structure and avoiding the explosive cartridge from sliding off the detonating cord.
Description
Technical Field
The utility model relates to a surface mine blasting technical field, more specifically are to relate to charging device in presplitting hole.
Background
The presplitting blasting is a blasting technology which is used for blasting a crack along a designed excavation outline in advance in a large-scale blasting excavation process so as to prevent rock bodies or other buildings outside a blasting area from being damaged.
At present, when the open mine is presplit blasting, the presplit hole is usually charged at an uncoupled interval, the specific method is that the cartridge is fixed on the detonating cord through the insulating tape, but in the actual operation process, because the cartridge is not firmly bound with the detonating cord or the cartridge is not bound evenly, the cartridge easily slides downwards from a fixed position under the action of gravity or the cartridge rubs with the hole wall, the charging precision is reduced or the hole is directly blocked, the cartridge cannot smoothly fall to the designed position, and the construction efficiency is low and the blasting quality is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: in order to solve the problem that the current presplitting hole charging method exists, the utility model provides a charging means in presplitting hole.
The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:
the utility model provides a charging means in pre-splitting hole, includes the cylinder shell, the cylinder shell comprises two semi-cylindrical shells, the internal diameter of cylinder shell is less than the external diameter sum of explosive fuse and cartridge, the equal detachably in both ends is equipped with the bell jar about the cylinder shell, the bell jar comprises cylindricality portion and toper portion, cylindricality portion and cylinder shell cooperate, all are equipped with a pair of explosive fuse hole in every toper portion.
Furthermore, a pair of clamping grooves are formed in each semi-cylindrical shell, and the distance between every two clamping grooves is smaller than the outer diameter of the detonating cord.
Further, both ends all are equipped with the barb about in every draw-in groove, distance between barb and the cylinder shell equals the external diameter of explosive fuse.
Furthermore, the upper end and the lower end of the cylindrical shell are both provided with external threads, the external threads comprise an external thread A on one semi-cylindrical shell and an external thread B on the other semi-cylindrical shell, and internal threads matched with the external threads at the same end are arranged in the cylindrical parts at the upper end and the lower end.
The utility model has the advantages as follows:
1. the utility model discloses simple structure, the detonating cord gets into from the detonating cord hole of a toper portion, wear out from the detonating cord hole of the homonymy of another toper portion, block two detonating cords and cartridge in two semi-cylindrical shells, later merge two semi-cylindrical shells into a cylinder shell through two conical cover, because be less than the internal diameter of cylinder shell behind the external diameter of detonating cord and cartridge for detonating cord and cartridge are pushed down to the inner wall of cylinder shell, have effectively avoided the cartridge to slide from detonating cord, have effectively improved the powder charge precision;
2. the semi-cylindrical shell of the utility model is internally provided with a clamping groove, the detonating cord is pressed in the clamping groove, so that the stability of the detonating cord is better, and the barb is arranged in the clamping groove, so that the detonating cord is more stably clamped in the clamping groove;
3. the utility model discloses a cylinder shell upper end and lower extreme all are equipped with the external screw thread, through matched with external screw thread and internal thread, install the conical cover in the cylinder shell outside, block the both ends of cartridge through two conical covers for the cartridge is placed inside the device steadily.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural diagram of the assembled structure of the present invention;
reference numerals: 1-conical cover, 2-conical part, 3-cylindrical part, 4-detonating cord hole, 5-internal thread, 6-external thread A, 7-clamping groove, 8-semi-cylindrical shell, 9-detonating cord, 10-medicated roll and 11-external thread B.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "up", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1 to 2, the present embodiment provides a pre-split hole charging device, which includes a cylindrical shell, the cylindrical shell is composed of two semi-cylindrical shells 8, the inner diameter of the cylindrical shell is smaller than the sum of the outer diameters of an explosive fuse 9 and a cartridge 10, conical covers 1 are detachably disposed at the upper end and the lower end of the cylindrical shell, the conical covers 1 are composed of a cylindrical portion 3 and a conical portion 2, the cylindrical portion 3 and the cylindrical shell are matched, and each conical portion 2 is provided with a pair of explosive fuse holes 4.
Example 2
As shown in fig. 1 to 2, this embodiment is further improved on the basis of embodiment 1, specifically, a pair of slots 7 is provided in each semi-cylindrical shell 8, and the distance between each slot 7 is smaller than the outer diameter of the detonating cord 9.
Example 3
As shown in fig. 1 to 2, this embodiment is further improved on the basis of embodiment 2, specifically, barbs are respectively disposed at the upper and lower ends of each clamping groove 7, and the distance between each barb and the cylindrical shell is equal to the outer diameter of the detonating cord 9.
Example 4
As shown in fig. 1 to 2, this embodiment is further improved on the basis of embodiment 2, specifically, the diameter of the detonating cord 9 is 8mm, the diameter of the cartridge 10 is 50mm, the length is 40cm, the diameter of the detonating cord hole 4 is 8mm, the inner diameter of the cylindrical portion 3 is 52mm, the outer diameter of the semi-cylinder is 52mm, the height is 40cm, the distance between the clamping grooves 7, that is, the height of the bayonet is 7.5mm, the length of the clamping groove 7 is 10mm, and the distance between the barb and the cylindrical shell is 8 mm.
Example 5
As shown in fig. 1 to 2, this embodiment is further improved on the basis of embodiment 3, specifically, the upper end and the lower end of the cylindrical shell are both provided with external threads, the external threads are composed of an external thread a6 on one semi-cylindrical shell 8 and an external thread B11 on the other semi-cylindrical shell 8, and the cylindrical portions 3 at the upper end and the lower end are both provided with internal threads 5 matching with the external threads at the same end.
The working principle is as follows: a detonating cord 9 enters from a detonating cord hole 4 of the conical part 2, then the detonating cord 9 is sequentially pressed in two clamping grooves 7 on the same side, then the detonating cord penetrates out from a detonating cord hole 4 on the same side of the other conical part 2, the other detonating cord 9 is also clamped on the other side in the same mode, then two semi-cylindrical shells 8 are clamped outside a cartridge 10, the two semi-cylindrical shells 8 are combined into a complete cylindrical shell, an external thread A6 and an external thread B11 are combined into a complete external thread, then the conical covers 1 are installed at two ends of the cylindrical shell, namely, the cylindrical part 3 is installed outside the cylindrical shell through the matched internal thread 5 and the external thread.
Claims (4)
1. The utility model provides a charging means in pre-splitting hole, its characterized in that includes the cylinder shell, the cylinder shell comprises two semicylindrical shells (8), the internal diameter of cylinder shell is less than the external diameter sum of explosive fuse (9) and cartridge (10), both ends all detachably are equipped with conical cover (1) about the cylinder shell, conical cover (1) comprises cylindricality portion (3) and toper portion (2), cylindricality portion (3) and cylinder shell cooperate, all are equipped with a pair of explosive fuse hole (4) on every toper portion (2).
2. A pre-split charge according to claim 1, characterised in that a pair of slots (7) is provided in each semi-cylindrical shell (8), the distance between each slot (7) being less than the outer diameter of the detonating cord (9).
3. A pre-split charge according to claim 2, characterized in that barbs are arranged at the upper and lower ends of each slot (7), and the distance between the barbs and the cylindrical shell is equal to the outer diameter of the detonating cord (9).
4. A pre-split charge according to claim 1, 2 or 3, characterised in that the upper and lower ends of the cylindrical housing are provided with external screw thread comprising an external screw thread a (6) on one semi-cylindrical housing (8) and an external screw thread B (11) on the other semi-cylindrical housing (8), and that the cylindrical parts (3) at the upper and lower ends are provided with internal screw thread (5) matching the external screw thread at the same end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021275841.0U CN213421982U (en) | 2020-07-02 | 2020-07-02 | Charging device for pre-cracked hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021275841.0U CN213421982U (en) | 2020-07-02 | 2020-07-02 | Charging device for pre-cracked hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213421982U true CN213421982U (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021275841.0U Active CN213421982U (en) | 2020-07-02 | 2020-07-02 | Charging device for pre-cracked hole |
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| CN (1) | CN213421982U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777588A (en) * | 2022-04-15 | 2022-07-22 | 北京科技大学 | Presplitting blasting slit pipe device |
-
2020
- 2020-07-02 CN CN202021275841.0U patent/CN213421982U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777588A (en) * | 2022-04-15 | 2022-07-22 | 北京科技大学 | Presplitting blasting slit pipe device |
| CN114777588B (en) * | 2022-04-15 | 2023-09-15 | 北京科技大学 | Presplitting blasting slit pipe device |
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