Multi-section type precise blasting blast hole structure device

Abstract

The utility model discloses a multi-section type precise blasting blast hole structure device which comprises a protective cylinder, a plurality of sets of supporting plates arranged at equal intervals are fixedly connected to an inner cavity of the protective cylinder, the inner cavity of the protective cylinder is divided into a plurality of sets of cavities through the supporting plates, and the cavities are filled with gunpowder. The protective cylinder is divided into a plurality of groups of cavities, a detonating assembly used for detonating gunpowder is arranged in the cavity located at the top, and filling holes used for adding the gunpowder into the cavities are formed in the positions, corresponding to the cavities, of the surface of the protective cylinder. The amount of gunpowder in each section is accurately adjusted according to different blasting requirements, meanwhile, a small amount of explosive can be detonated through the detonating assembly to enable rock to generate initial cracks, then the explosives in the follow-up sections are detonated in sequence, the rock is gradually broken into the needed size, and therefore the more accurate blasting effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering blasting, and in particular relates to a multi-stage precision blasting blasthole structure device. 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 compression, loosening, destruction and throwing caused by the explosion of explosives in 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.

[0003] Chinese patent publication number CN218821963U discloses a pre-embedded device for blasting structures used in mining engineering blasting, comprising an embedded seat with an embedded groove disposed thereon. The pre-embedded device for blasting structures used in mining engineering blasting comprises a bottom hole, a plastic film, a conical block, and an anchor rod. During use, the plastic film is attached to the inner wall of the embedded groove. When the embedded sleeve is inserted into the embedded groove, the conical block allows for easy insertion of the embedded sleeve into the groove. The anchor rod at the bottom of the conical block is then inserted into the bottom hole. This prevents the embedded sleeve from becoming stuck during installation, making assembly very convenient, and the bottom is less likely to shake, resulting in a more stable assembly. The plastic film also provides moisture-proofing, facilitating construction. This addresses the issues of inconvenient assembly, the tendency for the bottom to shake, the instability of assembly, and the reduced capacity of the gunpowder caused by the moisture-absorbing layer.

[0004] When the above-mentioned device is used to blast a mountain, the single-stage blasting method is likely to produce larger rock blocks, which require secondary crushing, increasing engineering costs and time.

[0005] Therefore, a multi-stage precision blasting hole structure device is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a multi-stage precision blasting blasthole structure device to solve the technical defects of the existing single-stage blasting method that it is easy to produce large rock blocks and secondary crushing increases engineering costs.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A multi-stage precision blasting borehole structure device includes a protective tube, the inner cavity of the protective tube is fixedly connected to several groups of support plates arranged at equal distances, the inner cavity of the protective tube is separated into several groups of cavities by the support plates, the inner cavity of the cavities is filled with gunpowder, and an detonating assembly for detonating the gunpowder is arranged inside the cavity located at the top. Filling holes for adding gunpowder to the cavities are opened on the surface of the protective tube and at positions corresponding to each group of cavities, and the bottom inner walls of the filling holes are provided with sealing assemblies for sealing the filling holes.

[0009] As a further solution of the present invention, the detonation assembly includes a remote communication module fixedly installed on the surface of the upper support plate, and the surface of the support plate located in the middle is inlaid with electronic detonators. The signal input ends of the electronic detonators are electrically connected to the signal output ends of the remote communication module through wires, and the remote communication module is communicatively connected to the dedicated detonator.

[0010] As a further preferred embodiment of the present invention, the sealing component includes a receiving groove opened on the inner wall surface of the bottom of the filling hole, the inner cavity of the receiving groove is slidably inserted with a sealing plate for closing the filling hole, and the top inner wall of the filling hole is provided with a fixing part for fixing the sealing plate.

[0011] As a further preferred embodiment of the present invention, the fixing member includes a connecting plate fixedly installed on the top of each group of sealing plates, the connecting plate is inserted into the top inner wall of the filler hole, and a first bolt is inserted into the surface of the protective tube and the position corresponding to each group of connecting plates. One end of the first bolt passes through the protective tube and is threadedly connected to the surface of the connecting plate.

[0012] As a preferred solution of the present invention, an adsorption layer is provided on the top of the support plate.

[0013] As a further preferred embodiment of the present invention, a pressure plate is provided at the top of the cavity with gunpowder and below the support plate, and fixing plates are fixedly connected to both sides of the bottom of the pressure plate. Extension bolts are inserted into the surfaces of the two groups of fixing plates at the same height, and one end of the extension bolt is threadedly connected to the inner wall of the protective tube.

[0014] Compared with the existing technology, the multi-stage precision blasting hole structure device of the utility model has the following beneficial effects:

[0015] 1. By setting the support plate and the filling holes, the protective tube is divided into multiple groups of cavities, which can realize the segmented loading and control of the gunpowder. The amount of gunpowder in each section can be accurately adjusted according to different blasting requirements. At the same time, a small amount of explosives can be detonated through the detonation component to create initial cracks in the rock, and then subsequent sections of explosives can be detonated in sequence to gradually break the rock into the required size, thereby achieving a more accurate blasting effect.

[0016] 2. Through the setting of the sealing component, the receiving groove and the sealing plate can tightly seal the filling hole to prevent the gunpowder from being damp, contaminated or accidentally leaking, thereby ensuring the quality and safety of the gunpowder.

[0017] 3. The pressure plate can flatten the gunpowder in the cavity to ensure good contact between the gunpowder and the electronic detonator, thereby improving blasting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only examples of the embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0020] Figure 2 This is a schematic cross-sectional view of the protective tube in an embodiment of the present utility model;

[0021] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0022] Reference numerals:

[0023] 100. Protective tube; 101. Support plate; 102. Adsorption layer; 103. Cavity; 104. Filling hole; 105. Sealing plate; 106. Receiving groove; 107. Lifting ring; 200. Remote communication module; 201. Electronic detonator; 300. Pressing plate; 301. Extension bolt; 302. Fixing plate; 400. Connecting plate; 401. First bolt. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clearly understood, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0026] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be the internal connection of two components; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0027] See attached Figure 1-3 As shown, an embodiment of the present utility model is a multi-stage precision blasting borehole structure device, comprising a protective tube 100, the inner cavity of the protective tube 100 is fixedly connected to a plurality of support plates 101 arranged at equal distances, the inner cavity of the protective tube 100 is separated into a plurality of cavities 103 by the support plates 101, the inner cavity of the cavity 103 is filled with gunpowder, and an ignition assembly for detonating the gunpowder is arranged inside the cavity 103 at the top, and filling holes 104 for adding gunpowder to the cavity 103 are provided on the surface of the protective tube 100 and at positions corresponding to each group of cavities 103, the bottom inner walls of the filling holes 104 are provided with closing assemblies for closing the filling holes 104, and a hanging ring 107 is connected to the top of the protective tube 100.

[0028] By setting the support plate 101 and the filling hole 104, the protective tube 100 is divided into multiple groups of cavities 103, which can realize the segmented loading and control of gunpowder, and can accurately adjust the amount of gunpowder in each section according to different blasting requirements. At the same time, a small amount of explosives can be detonated by the detonation component to produce initial cracks in the rock, and then subsequent sections of explosives can be detonated in sequence to gradually break the rock into the required size, thereby achieving a more accurate blasting effect.

[0029] For further information, see Figure 2 As shown, the detonation assembly includes a remote communication module 200 fixedly installed on the surface of the upper support plate 101, and the surface of the support plate 101 located in the middle is inlaid with electronic detonators 201. The signal input ends of the electronic detonators 201 are electrically connected to the signal output ends of the remote communication module 200 through wires. The remote communication module 200 is communicatively connected to the dedicated detonator. Through the setting of the detonation assembly, the cooperation of the remote communication module 200 and the electronic detonator 201, the communication connection with the dedicated detonator is realized, the detonation can be remotely controlled, the safety of the operation is improved, and the operator can perform the detonation operation from a safe distance.

[0030] The remote communication module 200 is a LoRa series module.

[0031] Furthermore, the sealing component includes a receiving groove 106 opened on the inner wall surface of the bottom of the filling hole 104, and the inner cavity of the receiving groove 106 is slidably inserted with a sealing plate 105 for sealing the filling hole 104. The top inner wall of the filling hole 104 is provided with a fixing part for fixing the sealing plate 105. The design of the receiving groove 106 and the sealing plate 105 in the sealing component can tightly seal the filling hole 104 to prevent the gunpowder from moisture, contamination or accidental leakage, thereby ensuring the quality and safety of the gunpowder.

[0032] See also Figure 3 As shown, the fixing member includes a connecting plate 400 fixedly mounted on the top of each set of sealing plates 105. The connecting plate 400 is inserted into the top inner wall of the filling hole 104. A first bolt 401 is inserted into the surface of the protective tube 100 and at a position corresponding to each set of connecting plates 400. One end of the first bolt 401 penetrates the protective tube 100 and is threadedly connected to the surface of the connecting plate 400. One end of the first bolt 401 in the fixing member penetrates the protective tube 100 and is threadedly connected to the surface of the connecting plate 400, fixing the sealing plate 105, thereby ensuring that it can withstand a certain amount of pressure and impact force, and ensuring the sealing of the filling hole 104 during the blasting process.

[0033] It is worth noting that an adsorption layer 102 is provided on the top of the support plate 101, wherein the adsorption layer 102 is a combination of one or more materials such as silica gel, alumina gel, activated white clay, etc. During storage, the adsorption layer 102 can adsorb water vapor inside the protective tube 100 and the gunpowder, thereby preventing the gunpowder from getting damp.

[0034] Furthermore, a pressure plate 300 is installed at the top of the cavity 103 containing the gunpowder and below the support plate 101. The pressure plate 300 is made of rubber, and fixed plates 302 are fixedly connected to both sides of the bottom of the pressure plate 300. Extension bolts 301 are inserted into the surfaces of the two sets of fixing plates 302 at the same height. One end of the extension bolt 301 is threaded into the inner wall of the protective tube 100. The pressure plate 300 can flatten the gunpowder in the cavity 103, ensuring good contact between the gunpowder and the electronic detonator 201, thereby improving blasting efficiency.

[0035] When using the embodiment of the present invention, first remove each group of first bolts 401 in turn, and push the sealing plate 105 downward to insert the sealing plate 105 into the inner cavity of the receiving groove 106, thereby releasing the sealing of the filling hole 104, and then adding gunpowder to the interior of the cavity 103. Then, according to the needs, quantitatively add gunpowder to each group of cavities 103. When the gunpowder is added, use a tool to remove the lengthened bolt 301 in the cavity 103 to release the fixed restriction on the pressure plate 300, and use the tool to place it on the top of the pressure plate 300 and push the pressure plate downward. Plate 300 flattens the gunpowder in the cavity 103 so that the gunpowder has a better contact with the electronic detonator 201. Then, the sealing plate 105 is pulled upward in sequence and inserted into the top inner wall of the filling hole 104. The sealing plate 105 is fixed with the first bolt 401 to close the filling hole 104. Then, a special detonator is set to control the detonation time interval of the electronic detonator 201, and then placed in the blast hole. When the personnel evacuate to the safe area, the special detonator controls the electronic detonator 201 to detonate the gunpowder, thereby blasting the rock.

[0036] The embodiment of the present invention is a multi-stage precision blasting blasthole structure device. Through the arrangement of the support plate 101 and the filling hole 104, the protective tube 100 is divided into multiple groups of cavities 103, which can realize the segmented loading and control of the gunpowder, and can accurately adjust the amount of gunpowder in each section according to different blasting requirements. At the same time, a small amount of explosives can be first detonated through the detonation component to produce initial cracks in the rock, and then the subsequent sections of explosives can be detonated in sequence to gradually break the rock into the required size, thereby achieving a more precise blasting effect.

[0037] The above shows and describes the basic principles of the present invention. The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. The above embodiments and descriptions in the specification are only to illustrate the principles of the present invention. Without departing from the scope of the present invention, any modifications, equivalent substitutions and improvements made within the spirit and scope of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-stage precision blasting blasthole structure device, comprising a protective tube (100), characterized in that: The inner cavity of the protective tube (100) is fixedly connected to a plurality of support plates (101) arranged at equal intervals. The inner cavity of the protective tube (100) is separated into a plurality of cavities (103) by the support plates (101). The inner cavities (103) are filled with gunpowder. An ignition assembly for igniting the gunpowder is arranged inside the top cavity (103). Filling holes (104) for adding gunpowder into the cavities (103) are provided on the surface of the protective tube (100) and at positions corresponding to each group of cavities (103). A sealing assembly for sealing the filling holes (104) is provided on the inner walls of the bottoms of the filling holes (104).

2. The multi-stage precision blasting hole structure device according to claim 1, characterized in that: The detonation assembly comprises a remote communication module (200) fixedly mounted on the surface of the upper support plate (101), and electronic detonators (201) are embedded on the surface of the middle support plate (101), and signal input ends of the electronic detonators (201) are electrically connected to signal output ends of the remote communication module (200) through wires, and the remote communication module (200) is communicatively connected to a dedicated detonator.

3. The multi-stage precision blasting hole structure device according to claim 2, characterized in that: The sealing component comprises a receiving groove (106) provided on the inner wall surface of the bottom of the filling hole (104); a sealing plate (105) for sealing the filling hole (104) is slidably inserted into the inner cavity of the receiving groove (106); and a fixing member for fixing the sealing plate (105) is provided on the top inner wall of the filling hole (104).

4. The multi-stage precision blasting hole structure device according to claim 3, characterized in that: The fixing member comprises a connecting plate (400) fixedly mounted on the top of each set of sealing plates (105), the connecting plate (400) being plugged into the top inner wall of the filling hole (104), a first bolt (401) being plugged into the surface of the protective tube (100) and at a position corresponding to each set of connecting plates (400), one end of the first bolt (401) passing through the protective tube (100) and being threadedly connected to the surface of the connecting plate (400).

5. The multi-stage precision blasting hole structure device according to claim 4, characterized in that: An adsorption layer (102) is provided on the top of the support plate (101).

6. A multi-stage precision blasting hole structure device according to any one of claims 1 to 5, characterized in that: A pressure plate (300) is provided at the top of the cavity (103) containing the gunpowder and below the support plate (101), and fixing plates (302) are fixedly connected to both sides of the bottom of the pressure plate (300). Lengthening bolts (301) are inserted into the surfaces of two groups of the fixing plates (302) at the same height, and one end of the lengthening bolt (301) is threadedly connected to the inner wall of the protective tube (100).

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