Liquid oxygen fracturing multi-channel delay initiation control device

Abstract

The utility model discloses a kind of liquid oxygen fracturing multi-channel delay initiation control devices, comprising: delay initiator, extension assembly, the extension assembly is set to the bottom end four corners of delay initiator, the extension assembly includes support, the inside of the support rotationally arranged has adapter link block, the bottom end of the adapter link block is fixedly provided with connecting barrel, the one end outside of the connecting barrel is symmetrically provided with notch, the inside of the connecting barrel is provided with column conical block, by pulling station foot, so that pressure lock component can lock every section column conical block, to realize the effect of the length between growth connecting barrel and column conical block, and four groups of extension assembly can be independently adjusted, to adapt to low-lying road surface, so that delay initiator can be horizontally state conducive to ground work, can reduce the physical exertion of staff, improve the concentration of staff, reduce the probability of accident.

Description

Technical Field

[0001] This utility model relates to the field of mining equipment technology, and in particular to a liquid oxygen-induced fracturing multi-channel delayed detonation control device. Background Technology

[0002] Liquid oxygen has a boiling point of -183℃. It will rapidly vaporize at room temperature and expand dramatically in volume, thus generating enormous internal pressure. Oxygen also acts as a combustion accelerant. A borehole is drilled in the rock or ore to be fractured, and a fracturing tube containing liquid oxygen and a combustible medium is inserted into the borehole and the opening is sealed. When the liquid oxygen comes into contact with the room temperature environment, it vaporizes rapidly, and the internal pressure rises to tens of megapascals in a short time. When the pressure exceeds the rock's ultimate bearing capacity, cracks are generated around the borehole, eventually leading to fracture. This fracture is only a "static pressure expansion fracture".

[0003] In order to enable multiple fracturing channels, that is, multiple blast holes and fracturing tubes, to be activated sequentially according to a preset time difference, rather than detonating simultaneously, a time delay control device needs to be set to ensure that the fracturing process can proceed normally.

[0004] However, the terrain in mining areas is mostly low-lying, which prevents the delayed detonator from operating horizontally. As a result, workers are often in poor working postures and are subjected to high-intensity physical exertion, which affects their ability to operate the equipment properly and increases the probability of accidents. Utility Model Content

[0005] This invention provides a liquid oxygen fracturing multi-channel delayed detonation control device. By pulling the foot, the locking assembly can lock each section of the column cone, thereby increasing the length between the connecting cylinder and the column cone. The four extension components can be adjusted independently to adapt to low-lying road surfaces, allowing the delayed detonator to operate horizontally on the ground. This reduces the physical exertion of workers, improves their concentration, and lowers the probability of accidents.

[0006] This utility model provides a liquid oxygen fracturing multi-channel delayed initiation control device, comprising:

[0007] Delayed detonator;

[0008] An extension assembly is disposed at the four bottom corners of the time-delay detonator;

[0009] The extension component includes a bracket, a connecting block rotatably disposed on the inner side of the bracket, a connecting cylinder fixedly disposed at the bottom end of the connecting block, slots symmetrically opened on the outer side of one end of the connecting cylinder, a columnar cone block disposed on the inner side of the connecting cylinder, multiple columnar cone blocks disposed thereon, and multiple columnar cone blocks are fixedly connected to each other, the end of the columnar cone block is tapered, and a foot is fixedly disposed at one end of the columnar cone block;

[0010] A locking assembly is symmetrically arranged on the outside of the connecting cylinder. The locking assembly includes locking blocks. A return spring is fixedly arranged on the side of the locking blocks that are far apart from each other. A protective shell is fixedly arranged on the other end of the return spring. The protective shell is fixedly arranged on the outside of the connecting cylinder. The side of the locking blocks that are close to each other is set with an inclined surface.

[0011] In a liquid oxygen fracturing multi-channel delayed detonation control device according to an embodiment of the present invention, the bracket is fixedly installed at the four corners of the bottom end of the delayed detonator, a limiting plate is fixedly installed on one side of the bracket, the limiting plate is used to limit the maximum rotation angle of the connecting block, four brackets are fixedly installed at the bottom end of the delayed detonator, and friction-increasing pads are fixedly installed on the inner side of the bottom end of the brackets, the friction-increasing pads are made of rubber material.

[0012] In a liquid oxygen fracturing multi-channel delayed detonation control device according to an embodiment of the present invention, a sliding rod is fixedly provided on the side of the locking blocks that are far apart from each other. The sliding rod passes through and is slidably disposed on one side of the protective shell. A rod end seat is fixedly provided at the other end of the sliding rod, and a connecting rod is fixedly provided on one side of the rod end seat.

[0013] In a liquid oxygen fracturing multi-channel delayed detonation control device according to an embodiment of the present invention, an unlocking component is provided on the outer side of the connecting cylinder. The unlocking component includes a disc, and a first adapter arm and a second adapter arm are symmetrically rotatably arranged at one end of the disc. The first adapter arm and the second adapter arm are respectively rotatably connected to two connecting rods. A through-disc post is provided through and fixedly arranged at one end of the disc, and a fixing plate is fixedly arranged at one end of the through-disc post. The fixing plate is fixedly arranged on the outer side of the connecting cylinder, and a support plate component is fixedly arranged on the outer side of the connecting rod.

[0014] In a liquid oxygen fracturing multi-channel delayed detonation control device according to an embodiment of the present invention, a torsion spring is fixedly installed on the outer side of one end of the through-plate column, the other end of the torsion spring is fixedly connected to a fixed plate, and a turntable is fixedly installed on the other end of the through-plate column.

[0015] In a liquid oxygen fracturing multi-channel delayed detonation control device according to an embodiment of the present invention, the support plate component includes a movable support plate and a fixed support plate, the movable support plate and the fixed support plate are slidably connected, and the fixed support plate is fixedly disposed on both sides of the fixed plate.

[0016] The technical solution provided in this application embodiment can include the following beneficial effects: This application designs a liquid oxygen fracturing multi-channel delayed detonation control device. By pulling the foot, the locking assembly can lock each column cone block, thereby increasing the length between the connecting cylinder and the column cone block. The four sets of extension components can be adjusted independently to adapt to low-lying road surfaces, allowing the delayed detonator to work horizontally on the ground. This reduces the physical exertion of workers, improves their concentration, and lowers the probability of accidents.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 is a three-dimensional structural schematic diagram of a liquid oxygen fracturing multi-channel delayed initiation control device provided in an embodiment of this application;

[0020] Figure 2 is a schematic diagram of the upper and lower isometric structure of the delay initiator in a liquid oxygen fracturing multi-channel delayed initiation control device provided in an embodiment of this application.

[0021] Figure 3 is a schematic diagram of the disassembled structure of the connecting cylinder and the column cone block of a liquid oxygen fracturing multi-channel delayed detonation control device provided in an embodiment of this application;

[0022] Figure 4 is a schematic diagram of the disassembled structure of the foot and compression assembly in a liquid oxygen fracturing multi-channel delayed initiation control device provided in an embodiment of this application;

[0023] Figure 5 is a schematic diagram of the disassembled structure of the unlocking component in a liquid oxygen fracturing multi-channel delayed detonation control device provided in an embodiment of this application.

[0024] Figure 6 is a schematic diagram of the disassembled structure of the detachment plate component in a liquid oxygen fracturing multi-channel delayed detonation control device provided in an embodiment of this application.

[0025] Reference numerals: 1. Delayed detonator; 101. Card holder; 102. Friction-increasing pad; 2. Extension assembly; 201. Bracket; 2011. Limiting plate; 202. Adapter block; 203. Connecting cylinder; 2031. Groove; 204. Column cone block; 205. Standing foot; 206. Pressure locking block; 207. Return spring; 208. Protective shell; 209. Sliding rod; 210. Rod end seat; 211. Connecting rod; 3. Disc; 301. Through-disc column; 302. Torsion spring; 303. Fixing plate; 304. Support plate component; 3041. Moving support plate; 3042. Fixed support plate; 305. First adapter arm; 306. Second adapter arm; 307. Turntable. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0029] like Figures 1 to 6As shown, this application provides a liquid oxygen fracturing multi-channel delayed detonation control device, including: a delayed detonator 1, an extension assembly 2, the extension assembly 2 being disposed at the four corners of the bottom end of the delayed detonator 1, the extension assembly 2 including a bracket 201, a connecting block 202 rotatably disposed on the inner side of the bracket 201, a connecting cylinder 203 fixedly disposed at the bottom end of the connecting block 202, slots 2031 symmetrically opened on the outer side of one end of the connecting cylinder 203, a columnar cone block 204 disposed on the inner side of the connecting cylinder 203, multiple columnar cone blocks 204 being disposed, and multiple columnar cone blocks 204 being fixedly connected to each other, the ends of the columnar cone blocks 204 being tapered, and a foot fixedly disposed at one end of the columnar cone block 204. 205. Pressure Locking Assembly: The pressure locking assembly is symmetrically arranged on the outside of the connecting cylinder 203. The pressure locking assembly includes pressure locking blocks 206. A return spring 207 is fixedly arranged on the side of the pressure locking blocks 206 that is far apart from each other. A protective shell 208 is fixedly arranged on the other end of the return spring 207. The protective shell 208 is fixedly arranged on the outside of the connecting cylinder 203. The side of the pressure locking blocks 206 that is close to each other is set with an inclined surface. A sliding rod 209 is fixedly arranged on the side of the pressure locking blocks 206 that is far apart from each other. The sliding rod 209 passes through and slides on one side of the protective shell 208. A rod end seat 210 is fixedly arranged on the other end of the sliding rod 209. A connecting rod 211 is fixedly arranged on one side of the rod end seat 210.

[0030] In an optional embodiment, when the cone block 204 contacts the outer conical surface of the locking block 206 during movement, the locking block 206 is squeezed and moves away from each other. At the same time, the return spring 207 is compressed. After the locking block 206 contacts the end face of the cone block 204, the locking block 206 can return to its original position by the elastic force of the return spring 207 and fit against the end face of the cone block 204, thereby locking the cone block 204. While the locking block 206 is moving, the sliding rod 209 slides on one side of the protective shell 208, causing the two rod end seats 210 to move away from each other. This ensures that the locking block 206 can only move linearly, and the four sets of extension components 2 can be adjusted independently to adapt to low-lying road surfaces. This allows the delayed detonator 1 to be in a horizontal state for easy operation on the ground, reducing the physical exertion of workers, improving their concentration, and reducing the probability of accidents.

[0031] The bracket 201 is fixedly installed at the four corners of the bottom of the time-delay detonator 1. A limit plate 2011 is fixedly installed on one side of the bracket 201. The limit plate 2011 is used to limit the maximum rotation angle of the connecting block 202. Four brackets 101 are fixedly installed at the bottom of the time-delay detonator 1. Friction-increasing pads 102 are fixedly installed on the inner side of the bottom of the brackets 101. The friction-increasing pads 102 are made of rubber.

[0032] In an optional implementation, when the extension component 2 is not used, the extension component 2 is folded at the bottom of the time-delay detonator 1 and placed in the friction pad 102, thereby reducing the overall volume of the time-delay detonator 1 and making it easier to store.

[0033] For example, an unlocking assembly is provided on the outer side of the connecting cylinder 203. The unlocking assembly includes a disc 3. A first adapter arm 305 and a second adapter arm 306 are symmetrically rotatably disposed at one end of the disc 3. The first adapter arm 305 and the second adapter arm 306 are respectively rotatably connected to two connecting rods 211. A through-disc post 301 is provided through and fixedly disposed at one end of the disc 3. A fixing plate 303 is fixedly disposed at one end of the through-disc post 301. The fixing plate 303 is fixedly disposed on the outer side of the connecting cylinder 203. On the side, a support plate component 304 is fixedly installed on the outer side of the connecting rod 211. A torsion spring 302 is fixedly installed on the outer side of one end of the through-plate column 301. The other end of the torsion spring 302 is fixedly connected to the fixed plate 303. A turntable 307 is fixedly installed on the other end of the through-plate column 301. The support plate component 304 includes a movable support plate 3041 and a fixed support plate 3042. The movable support plate 3041 and the fixed support plate 3042 are slidably connected. The fixed support plate 3042 is fixedly installed on both sides of the fixed plate 303.

[0034] In an optional implementation, when the cone block 204 needs to be unlocked so that it retracts into the connecting cylinder 203, the turntable 307 is rotated so that the through-plate column 301 drives the disc 3 to rotate together. The rotation of the disc 3 allows the first adapter arm 305 and its connected end to make a circumferential motion, so that the first adapter arm 305 can drive the two connecting rods 211 to move away from each other, thereby making the locking assembly no longer lock the cone block 204, thus achieving the unlocking effect. After unlocking, the cone block 204 can be pushed into the interior of the connecting cylinder 203.

[0035] As the through-plate post 301 rotates, the torsion spring 302 is in a contracted state. Thus, after the turntable 307 is released, the rebound force of the torsion spring 302 will cause the through-plate post 301 and the disc 3 to rotate back, which facilitates the next use and also restores the pressure locking assembly to its original state.

[0036] When the two connecting rods 211 move away from each other, the movable support plate 3041 will slide on one side of the fixed support plate 3042, thereby adapting to the change in the distance between the connecting rod 211 and the fixed plate 303, and enhancing the stability of the connecting rod 211 during use.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0038] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A liquid oxygen-induced fracturing multi-channel delayed initiation control device, characterized in that, include: Delayed detonator (1); Extension component (2), the extension component (2) is disposed at the four corners of the bottom end of the time-delay detonator (1); The extension component (2) includes a bracket (201), a connecting block (202) is rotatably provided on the inner side of the bracket (201), a connecting cylinder (203) is fixedly provided at the bottom end of the connecting block (202), a slot (2031) is symmetrically opened on the outer side of one end of the connecting cylinder (203), a columnar cone block (204) is provided on the inner side of the connecting cylinder (203), multiple columnar cone blocks (204) are provided, and multiple columnar cone blocks (204) are fixedly connected to each other, the end of the columnar cone block (204) is tapered, and a foot (205) is fixedly provided at one end of the columnar cone block (204). A locking assembly is symmetrically arranged on the outside of the connecting cylinder (203). The locking assembly includes locking blocks (206). A return spring (207) is fixedly arranged on the side of the locking blocks (206) that is far apart from each other. A protective shell (208) is fixedly arranged on the other end of the return spring (207). The protective shell (208) is fixedly arranged on the outside of the connecting cylinder (203). The side of the locking blocks (206) that is close to each other is set with an inclined surface.

2. The liquid oxygen fracturing multi-channel delayed initiation control device according to claim 1, characterized in that, The bracket (201) is fixedly installed at the four corners of the bottom of the time-delay detonator (1). A limit plate (2011) is fixedly installed on one side of the bracket (201). The limit plate (2011) is used to limit the maximum rotation angle of the connecting block (202). Four card holders (101) are fixedly installed at the bottom of the time-delay detonator (1). A friction-increasing pad (102) is fixedly installed on the inner side of the bottom of the card holder (101). The friction-increasing pad (102) is made of rubber material.

3. The liquid oxygen fracturing multi-channel delayed initiation control device according to claim 1, characterized in that, A sliding rod (209) is fixedly provided on one side of the locking blocks (206) that are far apart from each other. The sliding rod (209) passes through and slides on one side of the protective shell (208). A rod end seat (210) is fixedly provided at the other end of the sliding rod (209). A connecting rod (211) is fixedly provided on one side of the rod end seat (210).

4. The liquid oxygen fracturing multi-channel delayed initiation control device according to claim 1, characterized in that, An unlocking assembly is provided on the outside of the connecting cylinder (203). The unlocking assembly includes a disc (3). A first adapter arm (305) and a second adapter arm (306) are symmetrically rotatably provided on one end of the disc (3). The first adapter arm (305) and the second adapter arm (306) are rotatably connected to two connecting rods (211) respectively. A through-disc post (301) is provided through and fixed on one end of the disc (3). A fixing plate (303) is fixed on one end of the through-disc post (301). The fixing plate (303) is fixed on the outside of the connecting cylinder (203). A support plate component (304) is fixed on the outside of the connecting rod (211).

5. The liquid oxygen fracturing multi-channel delayed initiation control device according to claim 4, characterized in that, A torsion spring (302) is fixedly installed on the outer side of one end of the through-plate column (301), and the other end of the torsion spring (302) is fixedly connected to the fixing plate (303). A turntable (307) is fixedly installed on the other end of the through-plate column (301).

6. The liquid oxygen fracturing multi-channel delayed initiation control device according to claim 4, characterized in that, The support plate component (304) includes a movable support plate (3041) and a fixed support plate (3042), which are slidably connected. The fixed support plate (3042) is fixedly disposed on both sides of the fixed plate (303).

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