Blasting structure pre-burying device for mine engineering blasting

Abstract

The invention relates to the technical field of engineering blasting construction, and discloses a blasting structure pre-burying device for mine engineering blasting, which comprises a foundation pit, a pre-burying cylinder, explosive, a filling material, a mounting screw groove, a packaging end cover, a circular groove, a deflector rod, a supporting air bag, an air inlet pipe, a sealing groove, a sealing plug, a circular hole, a connecting shaft, a spring, a pressurizing air cushion and a pressurizing pipe. After the embedded barrel is placed in a foundation pit, the pressurizing air cushion can be inserted into the air inlet pipe through the pressurizing pipe to be in butt joint, when the pressurizing air cushion is pressed, air pressure in the pressurizing air cushion can downwards eject and open the sealing plug after entering the air inlet pipe, the air pressure enters the supporting air bag, and after the pressurizing air cushion is pressed repeatedly, the sealing plug can be opened. The interior of the sealing plug can expand under air pressure filling to be attached to the inner side of the foundation pit for supporting, in this way, the interior of the supporting air bag can be filled with air pressure through the exterior of the pre-buried barrel to make the supporting air bag collide with the foundation pit for supporting, and therefore it is guaranteed that the pre-buried barrel is stably pre-buried, meanwhile, the structural cost loss is reduced, and the practical effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of engineering blasting construction, in particular to a blasting structure pre-embedded device for mining engineering blasting. Background Art

[0002] Engineering blasting is often used in large-scale operations such as mining, mountain excavation, railway and highway construction. It uses the huge energy generated by the compression, loosening, destruction and throwing of explosives in the air, water, soil and rock media or objects to destroy the original structure of a certain object. In large-scale projects such as railways, mines, and reservoirs, the role of blasting technology is very critical and important. Blasting technology is used in mountain excavation and tunnel digging for mining and road construction, and in the demolition of old buildings in cities. Before the blasting construction operation, it is necessary to use pre-embedded devices to embed the explosives into the corresponding pits.

[0003] After searching the invention patent of a pre-embedded device for blasting structure for mining engineering blasting with application number 202322303772.X, a driving motor, a screw, a limit plate, a connecting ring, a connecting rod, a supporting outer rod, a connecting piece and a reinforcing piece are arranged in this scheme. When the pre-embedded sleeve is pre-embedded, the driving motor can drive the connecting ring to move so that the supporting outer rod is expanded outward, so that the outer wall of the supporting outer rod and the reinforcing piece are in contact with the inner wall of the pit, thereby avoiding loosening of the device during pre-embedding and improving the stability effect.

[0004] However, as a disposable product, the device has many structural components and its own cost is relatively high. After being damaged by an explosion, the cost consumption is relatively large and it is not very practical. For this reason, we propose a pre-embedded blasting structure device for mining engineering blasting. Summary of the invention

[0005] The present invention mainly solves the technical problems existing in the above-mentioned prior art and provides a blasting structure pre-embedded device for mining engineering blasting.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a pre-embedded device for blasting structure for mining engineering blasting, comprising a foundation pit, a pre-embedded tube, explosives, and filling materials. The top of the pre-embedded tube is provided with an installation screw groove that penetrates the interior of the pre-embedded tube, a packaging end cover is arranged above the pre-embedded tube, a connecting thread is arranged on the periphery of the packaging end cover, a circular groove is arranged on the top of the packaging end cover, a lever is installed on the inner side of the circular groove, a supporting air bag filled with internal air pressure is sleeved and connected to the outer side of the pre-embedded tube, the supporting air bag itself has deformation characteristics, an air intake pipe is integrally connected to the top of the supporting air bag, a sealing groove is arranged at the lower inner side of the air intake pipe, a sealing plug is arranged at the bottom of the air intake pipe, a circular hole is arranged at the bottom of the air intake pipe, a connecting shaft that penetrates the circular hole is installed above the sealing plug, a spring fixedly connected to the connecting shaft is arranged inside the circular hole, a pressurized air cushion is arranged above the pre-embedded tube, and a pressurized pipe is installed on the outside of the pressurized air cushion.

[0007] Preferably, after the inflatable air cushion is inserted into the air inlet pipe through the inflating tube, when the inflatable air cushion is pressed, the air pressure inside the inflatable air cushion presses the sealing plug downward through the inlet pipe, and when there is no squeezing pressure on the top of the sealing plug, the sealing plug is elastically pulled to a reset state by the spring inside the circular hole.

[0008] Preferably, when the interior of the support airbag is filled with air pressure through the pressurized air cushion, the support airbag itself and the inner wall of the foundation pit are in an expanded, fitted and supported state.

[0009] Preferably, the outer periphery of the packaging end cover is connected to the internal thread of the mounting screw groove through a connecting thread, a through hole is opened inside the packaging end cover, and a protective tube for fuse penetration protection is installed at the bottom of the packaging end cover corresponding to the position of the through hole.

[0010] Preferably, the outer sheath of the explosive is provided with a protective cotton sheath, and the outer part of the explosive is supported and fitted with the filling material through the protective cotton sheath.

[0011] Preferably, the explosive inside the embedded tube is located inside the foundation pit in a sealed moisture-proof state through a supporting air bag on the periphery of the embedded tube, and the protective cotton sleeve itself has liquid absorption properties, and the outside of the explosive is in a secondary moisture-proof state through the protective cotton sleeve.

[0012] Preferably, a plug hole is provided at the top of the embedded tube, a plug rod is movably inserted into the plug hole, and a positioning reflective material is adhered to the upper part of the outer part of the plug rod, and the positioning reflective material itself has reflective properties.

[0013] The present invention provides a blasting structure pre-embedded device for mining engineering blasting, which has the following beneficial effects:

[0014] 1. A pre-buried device for blasting structure for mining engineering blasting. In this article, the explosive can be placed in the pre-buried tube with the filling material, and then the explosive fuse itself is passed through the protective tube and the through hole, and the packaging end cover can be connected and rotated with the installation screw groove through the lever inside the circular groove, so that the packaging end cover is connected and packaged with the internal thread of the installation screw groove through the connecting thread. At this time, the pressurized air cushion can be inserted into the air intake pipe through the pressurized air cushion. When the pressurized air cushion is pressed, the internal air pressure of the pressurized air cushion will press the sealing plug downward after entering the air intake pipe, so that the air pressure enters the supporting airbag. After repeatedly pressing the pressurized air cushion, the inside of the sealing plug can expand under the air pressure filling and fit the inner side of the foundation pit for support, thereby ensuring the pre-buried stability of the pre-buried tube itself. In this way, the outside of the pre-buried tube can fill the inside of the supporting airbag with air pressure to make it collide and support, without the need to support it through the traditional cumbersome adjustment of the supporting mechanism, thereby ensuring the pre-buried stability of the pre-buried tube while reducing the structural cost loss and improving the practical effect.

[0015] 2. A pre-buried device for blasting structure for mining engineering blasting. After the pre-buried tube is put into the foundation pit together with the supporting airbag, the inside of the supporting airbag can expand and expand under the pressure of the pressurized air cushion, so that it can fit and support the inner side of the foundation pit. At the same time, the supporting airbag wrapped by the pre-buried tube can also prevent external water vapor from contacting the outer wall of the pre-buried tube, which can perform a preliminary moisture-proof effect. The outside of the explosive inside the pre-buried tube is wrapped with a group of protective cotton sleeves. The protective cotton sleeves themselves have liquid absorption characteristics, and the external water vapor can also be absorbed and isolated for the second time through the protective cotton sleeves, thereby improving the moisture-proof effect of the explosive inside the pre-buried tube.

[0016] 3. A pre-embedded device for blasting structure for mining engineering blasting. After the pre-embedded tube is placed into the foundation pit for expansion support through a supporting airbag, the plug rod can be inserted into the plug hole for fixation, and a positioning reflective material is adhered to the upper part of the outside of the plug rod. The positioning reflective material itself is made of reflective material and has reflective properties. In this way, after the pre-embedded tube is pre-buried, the positioning reflective material can be used to observe the blasting position of the pre-embedded tube, thereby achieving the effect of convenient positioning and observation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation of the present invention or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0018] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a partial schematic diagram of the support airbag of the present invention;

[0021] Figure 3 For the present invention Figure 1 A magnified view of middle;

[0022] Figure 4 For the present invention Figure 1 Enlarged view of middle B;

[0023] Figure 5 For the present invention Figure 1 Enlarged view of middle C;

[0024] Figure 6 For the present invention Figure 1 Enlarged view of D in the middle.

[0025] Legend:

[0026] 1. Foundation pit; 2. Embedded tube; 3. Explosives; 4. Filling material; 5. Mounting screw groove; 6. Packaging end cap; 7. Connecting thread; 8. Round groove; 9. Push rod; 10. Through hole; 11. Protective tube; 12. Support air bag; 13. Inlet pipe; 14. Sealing groove; 15. Sealing plug; 16. Round hole; 17. Connecting shaft; 18. Spring; 19. Pressurized air cushion; 20. Pressurized tube; 21. Protective cotton sleeve; 22. Plug hole; 23. Plug rod; 24. Positioning reflective material. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1: A pre-embedded device for blasting structure for mining engineering blasting, such as Figure 1-Figure 6As shown, it includes a foundation pit 1, an embedded tube 2, explosives 3, and filling materials 4. The top of the embedded tube 2 is provided with an installation screw groove 5 that penetrates the interior of the embedded tube 2. A packaging end cover 6 is arranged above the embedded tube 2. The outer periphery of the packaging end cover 6 is provided with a connecting thread 7. The top of the packaging end cover 6 is provided with a circular groove 8. The inner side of the circular groove 8 is provided with a lever 9. The outer sleeve of the embedded tube 2 is connected to a support airbag 12 filled with internal air pressure. The support airbag 12 itself has a deformation characteristic. The support airbag 12 has a deformation characteristic. An air intake pipe 13 is integrally connected to the top of the bag 12, a sealing groove 14 is provided at the lower inner side of the air intake pipe 13, a sealing plug 15 is provided at the bottom of the air intake pipe 13, a circular hole 16 is provided at the bottom of the air intake pipe 13, a connecting shaft 17 passing through the circular hole 16 is installed above the sealing plug 15, a spring 18 fixedly connected to the connecting shaft 17 is provided inside the circular hole 16, a pressurized air cushion 19 is provided above the embedded tube 2, and a pressurized pipe 20 is installed passing through the outside of the pressurized air cushion 19.

[0029] Furthermore, after the pressurized air cushion 19 is inserted into the air intake pipe 13 through the charging tube 20, when the pressurized air cushion 19 is pressed, the air pressure inside the pressurized air cushion 19 presses the sealing plug 15 downward through the air intake pipe 13. When there is no squeezing pressure on the top of the sealing plug 15, the sealing plug 15 is elastically pulled to a reset state through the spring 18 inside the circular hole 16.

[0030] Furthermore, when the interior of the support airbag 12 is filled with air pressure through the pressurized air cushion 19 , the support airbag 12 itself and the inner wall of the foundation pit 1 are in an expanded, fitted and supported state.

[0031] Furthermore, the outer periphery of the packaging end cover 6 is connected to the internal thread of the mounting screw groove 5 via a connecting thread 7, a through hole 10 is opened inside the packaging end cover 6, and a protective tube 11 for fuse penetration protection is installed at the bottom of the packaging end cover 6 corresponding to the position of the through hole 10.

[0032] Embodiment 2: A pre-embedded device for blasting structure for mining engineering blasting, such as Figure 1-Figure 6As shown, it includes a foundation pit 1, an embedded tube 2, explosives 3, and filling materials 4. The top of the embedded tube 2 is provided with an installation screw groove 5 that penetrates the interior of the embedded tube 2. A packaging end cover 6 is arranged above the embedded tube 2. The outer periphery of the packaging end cover 6 is provided with a connecting thread 7. The top of the packaging end cover 6 is provided with a circular groove 8. The inner side of the circular groove 8 is provided with a lever 9. The outer sleeve of the embedded tube 2 is connected to a support airbag 12 filled with internal air pressure. The support airbag 12 itself has a deformation characteristic. The support airbag 12 has a deformation characteristic. An air intake pipe 13 is integrally connected to the top of the bag 12, a sealing groove 14 is provided at the lower inner side of the air intake pipe 13, a sealing plug 15 is provided at the bottom of the air intake pipe 13, a circular hole 16 is provided at the bottom of the air intake pipe 13, a connecting shaft 17 passing through the circular hole 16 is installed above the sealing plug 15, a spring 18 fixedly connected to the connecting shaft 17 is provided inside the circular hole 16, a pressurized air cushion 19 is provided above the embedded tube 2, and a pressurized pipe 20 is installed passing through the outside of the pressurized air cushion 19.

[0033] Furthermore, after the pressurized air cushion 19 is inserted into the air inlet pipe 13 through the pressurized air cushion 19, when the pressurized air cushion 19 is pressed, the air pressure inside the pressurized air cushion 19 presses the sealing plug 15 downward through the air inlet pipe 13. When there is no squeezing pressure on the top of the sealing plug 15, the sealing plug 15 is elastically pulled to a reset state by the spring 18 inside the circular hole 16. When the inside of the support airbag 12 is filled with air pressure through the pressurized air cushion 19, the support airbag 12 itself and the inner wall of the foundation pit 1 are in an expanded and fitted support state.

[0034] Furthermore, the outer periphery of the packaging end cover 6 is connected to the internal thread of the mounting screw groove 5 via a connecting thread 7, a through hole 10 is opened inside the packaging end cover 6, and a protective tube 11 for fuse penetration protection is installed at the bottom of the packaging end cover 6 corresponding to the position of the through hole 10.

[0035] Furthermore, the outer cover of the explosive 3 is provided with a protective cotton cover 21 , and the outer part of the explosive 3 is supported and fitted with the filling material 4 through the protective cotton cover 21 .

[0036] Furthermore, the explosive 3 inside the embedded tube 2 is in a sealed moisture-proof state inside the foundation pit 1 through the supporting airbag 12 outside the embedded tube 2. The protective cotton sleeve 21 itself has liquid absorption properties, and the outside of the explosive 3 is in a secondary moisture-proof state through the protective cotton sleeve 21.

[0037] Embodiment 3: A pre-embedded device for blasting structure for mining engineering blasting, such as Figure 1-Figure 6As shown, it includes a foundation pit 1, an embedded tube 2, explosives 3, and filling materials 4. The top of the embedded tube 2 is provided with an installation screw groove 5 that penetrates the interior of the embedded tube 2. A packaging end cover 6 is arranged above the embedded tube 2. The outer periphery of the packaging end cover 6 is provided with a connecting thread 7. The top of the packaging end cover 6 is provided with a circular groove 8. The inner side of the circular groove 8 is provided with a lever 9. The outer sleeve of the embedded tube 2 is connected to a support airbag 12 filled with internal air pressure. The support airbag 12 itself has a deformation characteristic. The support airbag 12 has a deformation characteristic. An air intake pipe 13 is integrally connected to the top of the bag 12, a sealing groove 14 is provided at the lower inner side of the air intake pipe 13, a sealing plug 15 is provided at the bottom of the air intake pipe 13, a circular hole 16 is provided at the bottom of the air intake pipe 13, a connecting shaft 17 passing through the circular hole 16 is installed above the sealing plug 15, a spring 18 fixedly connected to the connecting shaft 17 is provided inside the circular hole 16, a pressurized air cushion 19 is provided above the embedded tube 2, and a pressurized pipe 20 is installed passing through the outside of the pressurized air cushion 19.

[0038] Furthermore, after the pressurized air cushion 19 is inserted into the air inlet pipe 13 through the pressurized air cushion 19, when the pressurized air cushion 19 is pressed, the air pressure inside the pressurized air cushion 19 presses the sealing plug 15 downward through the air inlet pipe 13. When there is no squeezing pressure on the top of the sealing plug 15, the sealing plug 15 is elastically pulled to a reset state by the spring 18 inside the circular hole 16. When the inside of the support airbag 12 is filled with air pressure through the pressurized air cushion 19, the support airbag 12 itself and the inner wall of the foundation pit 1 are in an expanded and fitted support state.

[0039] Furthermore, the outer periphery of the packaging end cover 6 is connected to the internal thread of the mounting screw groove 5 via a connecting thread 7, a through hole 10 is opened inside the packaging end cover 6, and a protective tube 11 for fuse penetration protection is installed at the bottom of the packaging end cover 6 corresponding to the position of the through hole 10.

[0040] Furthermore, the outer sleeve of the explosive 3 is provided with a protective cotton sleeve 21, and the outer part of the explosive 3 is supported and fitted with the filling material 4 through the protective cotton sleeve 21. The explosive 3 inside the embedded tube 2 is located inside the foundation pit 1 in a sealed and moisture-proof state through the supporting air bag 12 on the outer periphery of the embedded tube 2. The protective cotton sleeve 21 itself has liquid absorption characteristics, and the outer part of the explosive 3 is in a secondary moisture-proof state through the protective cotton sleeve 21.

[0041] Furthermore, a plug hole 22 is provided at the top of the embedded tube 2, a plug rod 23 is movably inserted inside the plug hole 22, and a positioning reflective material 24 is adhered to the upper part of the outer portion of the plug rod 23, and the positioning reflective material 24 itself has reflective properties.

[0042] Working principle of the present invention:

[0043] The explosive 3 can be placed in the embedded tube 2 with the filling material 4, and then the explosive 3 fuse itself is passed through the protective tube 11 and the through hole 10, and the package end cover 6 can be connected and rotated with the installation screw groove 5 through the lever 9 inside the circular groove 8, so that the package end cover 6 is connected and packaged with the internal thread of the installation screw groove 5 through the connecting thread 7. At this time, the pressurized air cushion 19 can be inserted into the air inlet pipe 13 through the pressurized air cushion 19. When the pressurized air cushion 19 is pressed, the internal air pressure of the pressurized air cushion 19 will increase after entering the air inlet pipe 13. The sealing plug 15 is pushed downward to open it, so that air pressure enters the supporting airbag 12. After repeatedly pressing the pressurized air cushion 19, the inside of the sealing plug 15 can expand under the air pressure filling and fit the inner side of the foundation pit 1 for support, thereby ensuring the embedded stability of the embedded tube 2 itself. In this way, the outside of the embedded tube 2 can fill the supporting airbag 12 with air pressure for collision support, without the need for supporting through the traditional cumbersome adjustment of the supporting mechanism, thereby ensuring the embedded stability of the embedded tube 2 while reducing the structural cost loss and improving the practical effect.

[0044] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A pre-embedded blasting structure device for mining engineering blasting, comprising a foundation pit (1), a pre-embedded tube (2), explosives (3), and a filling material (4), characterized in that: The top of the embedded tube (2) is provided with a mounting screw groove (5) penetrating the interior of the embedded tube (2); a packaging end cover (6) is arranged above the embedded tube (2); a connecting thread (7) is arranged on the periphery of the packaging end cover (6); a circular groove (8) is arranged on the top of the packaging end cover (6); a lever (9) is installed on the inner side of the circular groove (8); the outer sleeve of the embedded tube (2) is connected to a support airbag (12) filled with air pressure; the support airbag (12) itself has a deformation characteristic; the top of the support airbag (12) is integrally connected to an air inlet. A sealing groove (14) is provided at the lower inner side of the air intake pipe (13), a sealing plug (15) is provided at the bottom of the air intake pipe (13), a circular hole (16) is provided at the bottom of the air intake pipe (13), a connecting shaft (17) passing through the circular hole (16) is installed above the sealing plug (15), a spring (18) fixedly connected to the connecting shaft (17) is provided inside the circular hole (16), a pressurized air cushion (19) is provided above the embedded tube (2), and a pressurized pipe (20) is installed outside the pressurized air cushion (19).

2. The blasting structure pre-embedded device for mining engineering blasting according to claim 1 is characterized in that: After the pressurized air cushion (19) is inserted into the air inlet pipe (13) through the pressurized air cushion (20), when the pressurized air cushion (19) is pressed, the air pressure inside the pressurized air cushion (19) pushes the sealing plug (15) downward through the air inlet pipe (13), and when there is no squeezing pressure on the top of the sealing plug (15), the sealing plug (15) is elastically pulled to a reset state through the spring (18) inside the circular hole (16).

3. The blasting structure pre-embedded device for mining engineering blasting according to claim 2 is characterized in that: When the interior of the support airbag (12) is filled with air pressure through the pressurized air cushion (19), the support airbag (12) itself and the inner wall of the foundation pit (1) are in an expanded, fitted and supported state.

4. The blasting structure pre-embedded device for mining engineering blasting according to claim 1 is characterized in that: The outer periphery of the packaging end cover (6) is threadably connected to the inner thread of the mounting screw groove (5) via a connecting thread (7); a through hole (10) is provided inside the packaging end cover (6); and a protective tube (11) for protecting against fuse penetration is installed at a position corresponding to the through hole (10) at the bottom of the packaging end cover (6).

5. The blasting structure pre-embedded device for mining engineering blasting according to claim 1 is characterized in that: The outer cover of the explosive (3) is provided with a protective cotton cover (21), and the outer part of the explosive (3) is supported and fitted with the filling material (4) through the protective cotton cover (21).

6. The blasting structure pre-embedded device for mining engineering blasting according to claim 5 is characterized by: The explosive (3) inside the embedded tube (2) is located inside the foundation pit (1) in a sealed moisture-proof state through the supporting air bag (12) outside the embedded tube (2); the protective cotton sleeve (21) itself has liquid absorption properties, and the outside of the explosive (3) is in a secondary moisture-proof state through the protective cotton sleeve (21).

7. The blasting structure pre-embedded device for mining engineering blasting according to claim 6 is characterized by: The top of the embedded tube (2) is provided with an insertion hole (22), an insertion rod (23) is movably inserted into the insertion hole (22), and a positioning reflective material (24) is adhered to the upper part of the outer portion of the insertion rod (23), and the positioning reflective material (24) itself has a reflective property.

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