Bamboo chip three-section charging structure for drilling and blasting charging of three-arm drill jumbo

Abstract

The utility model discloses a bamboo chip three-section type charging structure for the drilling and blasting charging of a three-arm drill jumbo, which comprises a blast hole placed after the three-arm drill jumbo drills, and the interior of the blast hole is divided into three sections; placing holes are formed in the outer sides of the three sections of the blast hole, emulsion explosives are placed in the placing holes, and one end of each emulsion explosive is connected with one side of a detonating detonator through a connecting line; and a set of second threaded pipes are rotationally arranged in the first threaded pipe, and a set of third threaded pipes are rotationally connected to the inner positions of the second threaded pipes. The bamboo chip three-section type charging structure for drilling and blasting charging of the three-arm drill jumbo is provided with the blast hole, the blast hole is divided into three sections, emulsion explosives can be arranged in the three sets of placing holes formed in the blast hole, and a detonating detonator is arranged through the emulsion explosives; the emulsion explosive in the blast hole can be independently exploded through the detonating detonator, and efficient machining treatment can be conducted through multiple times of explosion.

Description

Technical Field

[0001] The utility model relates to the technical field related to subway construction, in particular to a bamboo three-section charging structure of a three-arm rock drilling trolley for drilling and blasting charges. Background Art

[0002] When building a subway, a tunnel needs to be dug underground. When digging the tunnel, hard rock may be encountered underground. Tunnel blasting and excavation need to use smooth blasting to ensure the excavation quality. The excavation footage of hard rock tunnel blasting is large, and the footage of a single cycle is 3-4.5m. The traditional hard rock tunnel smooth blasting smooth hole charging structure is: the explosives in the hole are divided into multiple sections, each section has the same amount of explosives, each section of explosives is tied to a bamboo piece, and a detonating cord is laid along the entire length of the hole.

[0003] Publication No. CN104897014A discloses a blasting charge structure, which has two symmetrical non-connected grooves on the upper and lower tube bodies of a PVC tube, respectively, and forms a focusing groove on the connecting line of two adjacent holes, so as to form a clamp-like structure on the premise of ensuring a focused jet, which is convenient for placing a charge bag and easy to control the charge interval; a focused flow can be generated in the groove direction of the tube body, and a high-pressure jet formed along the groove direction during the explosion has a splitting effect on the hole wall medium. However, when the above device is used, there are still certain shortcomings. First, a tunnel needs to be opened before the subway construction, and rocks may be encountered inevitably during work. At this time, a blasting mechanism is used for auxiliary treatment. However, when blasting, some hard rocks need to be blasted multiple times. Each section of explosives can be detonated independently, or can be detonated in sequence through a specific detonation system to effectively process the hard rocks. However, the above device needs to be refilled with explosives for treatment, which is inefficient.

[0004] Therefore, we proposed a bamboo three-stage charging structure for the three-arm rock drilling rig drilling and blasting charge, which can solve the above problems well. Utility Model Content

[0005] The purpose of the utility model is to provide a bamboo three-stage charging structure for drilling and blasting charges of a three-arm rock drilling trolley, so as to solve the problem that the blasting device mechanism currently on the market, proposed in the above background technology, requires multiple blasting treatments for some hard rocks during blasting, and each section of explosives can be detonated independently or in sequence through a specific detonation system to effectively process the hard rocks, while the above device needs to be reloaded with explosives for processing, which is inefficient.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bamboo three-section charging structure of a three-arm rock drilling trolley drilling and blasting charge, comprising a blast hole placed after the three-arm rock drilling trolley drills a hole, wherein the interior of the blast hole is divided into three sections;

[0007] Also includes:

[0008] The three outer positions of the blasthole are all provided with placement holes, and emulsion explosives are placed inside the placement holes. One end of the emulsion explosives is connected to one side of the detonating cap through a connecting line, and one side of the detonating cap is connected to the detonator through a detonating cap.

[0009] A group of first threaded tubes are rotatably arranged on the outer side of the top of the blast hole, a group of second threaded tubes are rotatably arranged inside the first threaded tubes, and a group of third threaded tubes are rotatably connected to the inner position of the second threaded tubes.

[0010] As a preferred technical solution of the present application, bamboo pieces are arranged inside the blast hole, and the three sections of the blast hole are divided into three sections by explosives through bamboo pieces as spacers, so as to carry out independent explosion treatment.

[0011] As a preferred technical solution of the present application, two groups of protective plates are arranged on the inner side of the placement hole, a group of connecting shafts are fixed at the ends of the protective plates, the outer side of the connecting shafts are bearing-connected to the inner wall of the placement hole, the top outer side of the connecting shafts is connected to the head end of the reset spring, and the tail end of the reset spring is fixed inside the placement hole, so that the protective plates can rotate inside the placement hole through the connecting shafts.

[0012] As a preferred technical solution of the present application, six groups of placement holes are arranged at equal angles with respect to the center position of the blasthole, and a through hole is opened inside the blasthole, so that the placement holes can be used to stably place the emulsion explosive.

[0013] As a preferred technical solution of the present application, an embedding groove is provided at the outer side of the first threaded tube, the second threaded tube and the third threaded tube, the top of the third threaded tube is higher than the top of the second threaded tube, the top of the second threaded tube is higher than the top of the first threaded tube, and a group of rotating sleeves are provided on the outer side of the first threaded tube, the second threaded tube and the third threaded tube. A cavity is provided at the inner side of the rotating sleeve, and one end of the inner wall of the cavity is connected to the head end of the connecting spring, the tail end of the connecting spring is fixed to one side of the embedding block, the outer side of the embedding block extends into the inner side of the embedding groove, and the emulsion explosives at different positions are adjusted by moving the connecting sleeve.

[0014] As a preferred technical solution of the present application, the embedded block extends into a side of the embedded groove and is arranged as an arc surface, and the embedded block forms a sliding structure between the embedded groove and the connecting spring, so that the arc surface can slide stably in different embedded grooves.

[0015] As a preferred technical solution of the present application, the outer sides of the first threaded tube, the second threaded tube and the third threaded tube are all threadedly connected with a group of connecting sleeves, the outer sides of the connecting sleeves are slidably arranged inside the blast hole, and the top position of the connecting sleeves is fitted to the top position of the emulsion explosive, so that the setting of the first threaded tube, the second threaded tube and the third threaded tube can drive the connecting sleeves to move.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows: the bamboo three-stage charging structure of the drilling and blasting charge is provided with a blast hole. Since the blast hole is divided into three sections, emulsion explosives are arranged inside the three groups of placement holes arranged inside the blast hole. Through a detonating detonator arranged by the emulsion explosive, the emulsion explosive inside the blast hole can be independently exploded by the detonating detonator, and multiple explosions can be performed for efficient processing. The specific contents are shown as follows:

[0017] 1. Emulsion explosives are set up, and the setting of the detonating tube set on one side of the detonating tube is used to control the detonating tube to detonate the emulsion explosives. The three-stage emulsion explosives are used to control the independent explosion, and efficient construction can be carried out at this time;

[0018] Furthermore, a placement hole is provided, and a protective plate provided at the inner side of the placement hole can be rotated by a connecting shaft so that the emulsion explosive can be placed, and a reset spring is provided to drive the protective plate to fit the inner side of the placement hole.

[0019] 2. A connecting sleeve is provided. Through the independent rotation of the first threaded tube, the second threaded tube and the rotating sleeve, the first threaded tube, the second threaded tube and the rotating sleeve can drive the connecting sleeve inside the blast hole to rotate, so that the connecting sleeve will move inside the placement hole, which can adapt to different emulsion explosives for detonation processing;

[0020] Furthermore, a rotating sleeve is provided, and an embedded block is provided on the inner side of the rotating sleeve. The embedded block can extend into the inner side of the embedded groove through the setting of the arc surface, and move to different embedded grooves through the arc surface, thereby driving different connecting sleeves to perform adjustment processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the main structure of the protective plate of the utility model;

[0023] Figure 3 This is a schematic diagram of the rear view structure of the protective plate of the utility model;

[0024] Figure 4 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0025] Figure 5 This is a schematic diagram of the main structure of the third threaded tube of the utility model;

[0026] Figure 6 It is a schematic diagram of the cross-sectional structure of the rotating sleeve of the utility model.

[0027] In the figure: 1, blast hole; 2, placement hole; 3, emulsion explosive; 4, detonating cap; 5, protective plate; 6, connecting shaft; 7, reset spring; 8, first threaded tube; 9, second threaded tube; 10, third threaded tube; 11, rotating sleeve; 12, connecting spring; 13, cavity; 14, embedded block; 1401, arc surface; 15, embedded groove; 16, connecting sleeve. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-Figure 6 , the utility model provides the following technical solutions:

[0030] Embodiment 1: In order to solve the problem that the blasting device mechanism currently on the market needs to be blasted multiple times when blasting some hard rocks, each section of explosives can be detonated independently, or can be detonated in sequence through a specific detonation system to effectively process the hard rocks, and the above device needs to be reloaded with explosives for processing, which is inefficient. Please refer to the attached Figure 1 -Attached Figure 3, including a blasthole 1 placed after drilling by a three-arm drilling trolley, the interior of the blasthole 1 is divided into three sections; also including: a placement hole 2 is opened at the outer position of the three sections of the blasthole 1, and an emulsion explosive 3 is placed inside the placement hole 2, one end of the emulsion explosive 3 is connected to one side of a detonating detonator 4 through a connecting line, and one side of the detonating detonator 4 is connected to a detonator through a detonating tube; a group of first threaded tubes 8 are rotatably arranged on the outer side of the top of the blasthole 1, a group of second threaded tubes 9 are rotatably arranged inside the first threaded tube 8, and a group of third threaded tubes 10 are rotatably connected to the inner position of the second threaded tube 9. Bamboo pieces are arranged inside the blasthole 1, and bamboo pieces are used as spacers between the three sections of the blasthole 1. Two groups of protective plates 5 are arranged inside the placement hole 2, and a group of connecting shafts 6 are fixed at the ends of the protective plates 5. The outer side of the connecting shaft 6 is connected to the inner wall of the placement hole 2 by a bearing, and the top outer side of the connecting shaft 6 is connected to the head end of the reset spring 7, and the tail end of the reset spring 7 is fixed inside the placement hole 2. The placement hole 2 is arranged with six groups at equal angles about the center of the blast hole 1, and a through hole is opened inside the blast hole 1. First, when the three-arm drilling trolley drills a subway tunnel, when charging is required, the placement hole 2 on one side of the placement hole 2 is opened. At this time, the emulsion explosive 3 can be placed inside the placement hole 2. When the emulsion explosive 3 is placed inside the blast hole 1, the protective plate 5 is relaxed and rotated inside the placement hole 2 through the connecting shaft 6 and the reset spring 7, resulting in the inner side of the protective plate 5 limiting the outer side of the emulsion explosive 3. The blast hole 1 is distributed in three sections, and bamboo pieces are provided inside the blast hole 1 as spacers to connect one side of the emulsion explosive 3 with the detonating cap 4. The detonating cap 4 is detonated through the detonating cap. At this time, the hard rock of the subway construction can be blasted through multi-stage explosions.

[0031] Embodiment 2: In order to adapt to different emulsion explosives 3 for placement treatment, please refer to the attached Figure 1 and attached Figure 4 -Attached Figure 6The first threaded tube 8, the second threaded tube 9 and the third threaded tube 10 are provided with an embedding groove 15 at their outer sides. The top of the third threaded tube 10 is higher than the top of the second threaded tube 9. The top of the second threaded tube 9 is higher than the top of the first threaded tube 8. A set of rotating sleeves 11 are arranged on the outer sides of the first threaded tube 8, the second threaded tube 9 and the third threaded tube 10. The inner side of the rotating sleeve 11 is provided with a cavity 13, and one end of the inner wall of the cavity 13 is connected to the head end of the connecting spring 12. The tail end of the connecting spring 12 is fixed to one side of the embedding block 14. The outer side of the embedding block 14 extends into the inner side of the embedding groove 15. By independently rotating the first threaded tube 8, the second threaded tube 9 and the rotating sleeve 11, the independent rotation of the first threaded tube 8, the second threaded tube 9 and the third threaded tube 10 can drive the connecting sleeve 16 to slide inside the blast hole 1, so that the connecting sleeve 16 will limit the emulsion explosive 3 placed inside the placement hole 2, and at this time, different amounts of emulsion explosive 3 can be adapted for blasting.

[0032] Embodiment 3: In order to facilitate the adjustment and rotation of the first threaded tube 8, the second threaded tube 9 and the third threaded tube 10, please refer to the attached Figure 4 and attached Figure 6 , the embedded block 14 extends into the embedded groove 15 on one side and is provided with an arc surface 1401, and the embedded block 14 forms a sliding structure between the embedded groove 15 and the connecting spring 12; the outer sides of the first threaded tube 8, the second threaded tube 9 and the third threaded tube 10 are all threadedly connected with a group of connecting sleeves 16, and the outer side of the connecting sleeve 16 is slidingly arranged inside the blast hole 1, and the top position of the connecting sleeve 16 fits the top position of the emulsion explosive 3. First, by sliding the rotating sleeve 11, the rotating sleeve 11 drives the embedded block 14 to slide inside the embedded groove 15. At this time, the arc surface 1401 set on one side of the embedded block 14 will rotate in different embedded grooves 15, and at this time, different connecting sleeves 16 can be effectively driven to slide inside the blast hole 1.

[0033] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bamboo three-section charge structure of a three-arm drilling rig drilling and blasting charge, comprising a blast hole (1) placed after the three-arm drilling rig drills a hole, wherein the interior of the blast hole (1) is divided into three sections; It is characterized in that Also includes: The three outer portions of the blast hole (1) are each provided with a placement hole (2), an emulsion explosive (3) is placed inside the placement hole (2), one end of the emulsion explosive (3) is connected to one side of a detonating cap (4) via a connecting line, and one side of the detonating cap (4) is connected to a detonator via a detonating cap; A group of first threaded tubes (8) are rotatably arranged on the outer side of the top of the blast hole (1), a group of second threaded tubes (9) are rotatably arranged inside the first threaded tubes (8), and a group of third threaded tubes (10) are rotatably connected to the inner position of the second threaded tubes (9).

2. The bamboo three-stage charging structure of the three-arm rock drilling rig drilling and blasting charge according to claim 1 is characterized in that: A bamboo piece is arranged inside the blast hole (1), and the bamboo piece is used as a spacer between the three sections of the blast hole (1).

3. The bamboo three-stage charging structure of the three-arm rock drilling rig drilling and blasting charge according to claim 1 is characterized in that: Two groups of protective plates (5) are arranged at the inner side of the placement hole (2), a group of connecting shafts (6) are fixed at the ends of the protective plates (5), the outer side of the connecting shafts (6) are bearing-connected to the inner wall of the placement hole (2), the outer side of the top of the connecting shaft (6) is connected to the head end of the return spring (7), and the tail end of the return spring (7) is fixed to the inner side of the placement hole (2).

4. The bamboo three-stage charging structure of the three-arm rock drilling rig drilling and blasting charge according to claim 1 is characterized in that: The placement holes (2) are arranged in six groups at equal angles with respect to the center position of the blast hole (1), and a through hole is opened at an inner position of the blast hole (1).

5. The bamboo three-stage charging structure of the three-arm rock drilling rig drilling and blasting charge according to claim 1 is characterized in that: An embedding groove (15) is provided on the outer sides of the first threaded tube (8), the second threaded tube (9) and the third threaded tube (10); the top of the third threaded tube (10) is higher than the top of the second threaded tube (9); the top of the second threaded tube (9) is higher than the top of the first threaded tube (8); a group of rotating sleeves (11) are provided on the outer sides of the first threaded tube (8), the second threaded tube (9) and the third threaded tube (10); a cavity (13) is provided on the inner side of the rotating sleeve (11); one end of the inner wall of the cavity (13) is connected to the head end of the connecting spring (12); the tail end of the connecting spring (12) is fixed to one side of the embedding block (14); the outer side of the embedding block (14) extends into the inner side of the embedding groove (15).

6. The bamboo three-stage charging structure of the three-arm rock drilling rig drilling and blasting charge according to claim 5 is characterized by: The position where the embedding block (14) extends into one side of the embedding groove (15) is provided with an arc surface (1401), and the embedding block (14) forms a sliding structure with the connecting spring (12) through the embedding groove (15).

7. The bamboo three-stage charging structure of the three-arm drilling rig drilling and blasting charge according to claim 1 is characterized by: The outer sides of the first threaded tube (8), the second threaded tube (9) and the third threaded tube (10) are all threadedly connected with a group of connecting sleeves (16), the outer sides of the connecting sleeves (16) are slidably arranged inside the blast hole (1), and the top position of the connecting sleeves (16) is in contact with the top position of the emulsion explosive (3).

Images