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CN-117308717-B - Quick closely knit blocking device in blast hole of tunnel excavation

CN117308717BCN 117308717 BCN117308717 BCN 117308717BCN-117308717-B

Abstract

The invention provides a rapid dense blocking device for a blasthole in tunnel excavation, which comprises a plate frame assembly and two dense blocking mechanisms, wherein the plate frame assembly comprises a central plate, two side plates and an elastic tightening belt, the central plate is arranged between the two side plates, the elastic tightening belt is used for restraining a blasting cartridge by utilizing the elasticity of the elastic tightening belt so as to throw the device into the blasthole together with the blasting cartridge, then a miniature electromagnet is used for releasing the limit of the telescopic mechanism, the central plate and the side plates are driven by the telescopic mechanism to squeeze the dense blocking mechanism, the dense blocking mechanism is expanded to squeeze and attach the inner wall of the blasthole, blocking operation is completed, the side plates are impacted by using explosive gas, slurry in the dense blocking mechanism is solidified, blasting shock waves are blocked, thus the blasting effect is ensured, operations such as manual compaction and secondary filling are not needed, the operation mode is simplified, and the working efficiency is improved.

Inventors

  • LI HUAIGUO
  • ZHAN YONG
  • HUANG PENG
  • QIAO YULING
  • CUI JINRONG
  • WANG YIGUN
  • HU YONGFU
  • YU BAONIAN
  • ZHAO XUFENG
  • HAO WEICHAO
  • WANG DAOMING
  • CHENG ZHANHAI
  • SHI LEI
  • JIANG ZHENGDE

Assignees

  • 中国水利水电第一工程局有限公司
  • 华能澜沧江水电股份有限公司

Dates

Publication Date
20260505
Application Date
20231020

Claims (9)

  1. 1. The rapid dense blocking device for the blastholes in tunnel excavation comprises a plate frame assembly (1) and two dense blocking mechanisms (2), and is characterized in that the plate frame assembly (1) comprises a central plate (101), two side plates (102) and an elastic binding belt (103); the central plate (101) is arranged between the two side plates (102), the elastic tightening bands (103) are arranged at the bottoms of the side plates (102), and the two compact plugging mechanisms (2) are arranged between the central plate (101) and the two side plates (102); the dense blocking mechanism (2) expands the central plate (101) and the side plates (102) by using the pressure between the central plate and the side plates, and compactly blocks the blastholes by using the slurry in the dense blocking mechanism; Two telescopic mechanisms (3) are arranged between the central plate (101) and the two side plates (102), and the telescopic mechanisms (3) are used for driving the central plate (101) and the side plates (102) to squeeze the compact plugging mechanism (2); The inner side walls of the two telescopic mechanisms (3) are provided with a plurality of micro electromagnets (4), the outer side walls of the iron cores of the micro electromagnets (4) are provided with locking mechanisms (5), and the locking mechanisms (5) are used for driving the iron cores of the micro electromagnets (4) to be inserted into the telescopic mechanisms (3); The upper surface of one side plate (102) is provided with a timing mechanism (6), and the timing mechanism (6) is used for supplying power to the micro electromagnet (4) at fixed time; The compact plugging mechanism (2) comprises an outer bag body (201), an inner bag body (202) and non-Newtonian fluid slurry (203); One ends of the outer bag body (201) and the inner bag body (202) are fixedly connected to one side of the central plate (101), the other ends of the outer bag body (201) and the inner bag body (202) are fixedly connected to one side, close to the central plate (101), of the side plate (102), and the non-Newtonian fluid slurry (203) is filled in the outer bag body (201) and the inner bag body (202) respectively.
  2. 2. The rapid dense blocking device for a blasthole for tunnel excavation according to claim 1, wherein the telescopic mechanism (3) comprises an inner ring body (301), an outer ring body (302), a slip ring (303) and a plurality of first springs (304); the inner ring body (301) and the outer ring (302) are arranged between the outer bag body (201) and the inner bag body (202), one end of the inner ring body (301) is fixedly connected to one side of the central plate (101), one end of the outer ring (302) is fixedly connected to one side of the side plate (102), and the outer side wall of the inner ring body (301) is in sliding connection with the inner side wall of the outer ring (302).
  3. 3. The rapid dense blocking device for a blasthole of tunnel excavation according to claim 2, wherein the slip ring (303) is fixedly connected to one end of the inner ring body (301), the outer side wall of the slip ring (303) is slidably connected with the inner side wall of the outer ring body (302), one ends of a plurality of first springs (304) are fixedly connected to one side, far away from the inner ring body (301), of the slip ring (303), the other ends of a plurality of first springs (304) are fixedly connected to the top of the inner side wall of the outer ring body (302), and a plurality of micro electromagnets (4) are mounted on the inner side wall of the outer ring body (302).
  4. 4. The rapid dense blocking device for a blasthole for tunnel excavation according to claim 2, wherein the locking mechanism (5) comprises a plurality of limiting plates (501), a plurality of second springs (502), a plurality of balls (503) and a plurality of insertion holes (504); Wherein, a plurality of limiting plate (501) respectively fixed connection in a plurality of the lateral wall of miniature electro-magnet (4) iron core, a plurality of second spring (502) are respectively overlapped and are located the outside of miniature electro-magnet (4) iron core, a plurality of the one end of second spring (502) respectively fixed connection in one side of limiting plate (501), a plurality of the other end of second spring (502) respectively fixed connection in a plurality of one side of miniature electro-magnet (4).
  5. 5. The rapid dense blocking device for a blasthole in tunnel excavation according to claim 4, wherein a plurality of balls (503) are slidably connected to one ends of a plurality of iron cores of the micro-electromagnet (4), a plurality of insertion holes (504) are formed in the outer side wall of the inner ring body (301), and the outer side wall of the iron core of the micro-electromagnet (4) is slidably connected with the inner side wall of the insertion holes (504).
  6. 6. The rapid dense blocking device for a blasthole for tunnel excavation according to claim 1, wherein the timing mechanism (6) comprises a battery box (601) and a timing switch (602); The battery box (601) is mounted on the upper surface of one side plate (102), the timing switch (602) is mounted on the upper surface of the battery box (601), an electrical output end of the battery box (601) is electrically connected to an electrical input end of the timing switch (602) through a wire, and an electrical output end of the timing switch (602) is electrically connected to electrical input ends of a plurality of micro electromagnets (4) through wires.
  7. 7. The rapid dense blocking device for a blasthole of tunnel excavation according to claim 1, wherein side blocks (71) are uniformly and fixedly connected to the outer side wall of the outer bag body (201), and protruding thorns (72) are uniformly and fixedly connected to one side, far away from the outer bag body (201), of each side block (71).
  8. 8. The rapid dense blocking device for a blasthole in tunnel excavation according to claim 1, wherein two ends of the elastic tightening strap (103) are fixedly connected with two bottom rings (73), and one end, far away from the elastic tightening strap (103), of one bottom ring (73) is fixedly connected to the bottom of the side plate (102).
  9. 9. The rapid dense blocking device for a blasthole for tunnel excavation according to claim 1, wherein the bottom of the inner side wall of one side plate (102) is connected with a wire binding ring (74) in a threaded manner, and a handle (75) is hinged in the middle of the upper surface of the other side plate (102).

Description

Quick closely knit blocking device in blast hole of tunnel excavation Technical Field The invention relates to a dense blocking device, in particular to a rapid dense blocking device for a blasthole excavated by a tunnel, and belongs to the technical field of blasting engineering of tunnel excavation. Background The blasting engineering is a construction method for removing or destroying a foundation, a building and a structure by utilizing explosives, wherein the types of the explosives are various, and the explosives commonly used in the construction of the building engineering mainly comprise ammonium nitrate explosives, nitroglycerin explosives, black powder and the like; In the process of engineering construction facilities for tunnel excavation, a large amount of earth and stone excavation is usually required, and blasting is one of the most common construction methods. Blasting is the breaking, throwing or loosening of earth and stones within a certain range around an industrial explosive by utilizing the energy released when the explosive is exploded. Blasting construction is a highly dangerous operation, from the leading of a blasting material to the design of a blasting scheme, to the implementation of the blasting scheme, safety warning and the treatment of a residual gun, and each process is careful and strict. Therefore, in blasting operations, effective construction safety measures are required to ensure safety of personnel, equipment, and neighboring buildings or structures. The dense blocking of the blast hole, namely the blocking of the blast hole, is one of important working procedures in blasting engineering, and mainly prevents the high-pressure explosion gas from being punched out of the blast hole after the explosion of the explosive by tightly blocking the blast hole so as to improve the blasting effect; The traditional blast hole plugging mode generally adopts plugging materials such as rock scraps, yellow mud, superfine cement, small granular matters coated with resin and the like to plug the blast hole, however, when the plugging operation is carried out, the blast hole is required to be filled with the plugging materials, the operations such as compaction, secondary filling, solidification and the like are required to be carried out, the operation mode is complex, the working efficiency is lower, and therefore, the rapid dense plugging device for the blast hole for tunnel excavation is provided. Disclosure of Invention In view of the above, the present invention provides a fast dense blocking device for blastholes in tunnel excavation, so as to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial choice. The technical scheme of the embodiment of the invention is that the quick compact blocking device for the blastholes excavated in the tunnel comprises a plate frame assembly and two compact blocking mechanisms, wherein the plate frame assembly comprises a central plate, two side plates and an elastic tightening belt; the central plate is arranged between the two side plates, the elastic wrapping band is arranged at the bottom of the side plates, and the two compact plugging mechanisms are arranged between the central plate and the two side plates; the compact plugging mechanism expands the central plate and the side plates by using the pressure between the central plate and the side plates, and compactly plugs the blastholes by using slurry in the compact plugging mechanism; two telescopic mechanisms are arranged between the central plate and the two side plates and are used for driving the central plate and the side plates to extrude the compact plugging mechanism; the inner side walls of the two telescopic mechanisms are provided with a plurality of micro electromagnets, the outer side walls of the iron cores of the micro electromagnets are provided with locking mechanisms, and the locking mechanisms are used for driving the iron cores of the micro electromagnets to be inserted into the telescopic mechanisms; The upper surface of one side plate is provided with a timing mechanism which is used for supplying power to the micro electromagnet at regular time. Further preferably, the dense plugging mechanism comprises an outer bladder, an inner bladder and a non-newtonian fluid slurry; One ends of the outer bag body and the inner bag body are fixedly connected to one side of the central plate, the other ends of the outer bag body and the inner bag body are fixedly connected to one side of the side plate, close to the central plate, and the non-Newtonian fluid slurry is filled into the outer bag body and the inner bag body respectively. Further preferably, the telescopic mechanism comprises an inner ring body, an outer sleeve ring, a slip ring and a plurality of first springs; The inner ring body and the outer collar are arranged between the outer bag body and the inner bag body, one end of the inner ring body is fixedly connected to