Shock wave fracturing device with water sealing and fixing functions

Abstract

The utility model discloses a shock wave fracturing device with water sealing and fixing functions. The shock wave fracturing device comprises a metal wire, a water sealing support, a first electrode rod, a second electrode rod, an electrode support, a tensioning rod and a tensioning nut. The electrode support is installed at the front end of the water sealing support, a first electrode stem and a second electrode stem are installed at the front end of the electrode support, and the front end of the first electrode stem and the front end of the second electrode stem are connected to the two ends of the metal wire respectively; the water sealing support comprises a plurality of insulating partition plates and a plurality of water sealing rings, and the water sealing rings are arranged between the two insulating partition plates; the tensioning rod penetrates through the water sealing support, the front end of the tensioning rod is fixed to the electrode support, a threaded section is arranged at the rear end of the tensioning rod, a tensioning nut is arranged on the threaded section, and the tensioning nut abuts against the rear end of the water sealing support. The shock wave fracturing device solves the problem that in the prior art, a shock wave fracturing device is poor in fixing effect in a drill hole.

Description

Technical Field

[0001] This application belongs to the technical field of shock wave, and particularly relates to a shock wave fracturing device with water sealing and fixing functions. Background Art

[0002] In aspects such as the demolition of urban concrete beams, coal seam fracturing, and the pre-fracturing of tunnel rocks and mine rocks, it is necessary to pre-fracture rock masses, coal seams, or concrete to facilitate further treatment. Conventional explosive items such as explosives have significant technical advantages in rock breaking, but the shock waves generated by explosives have poor controllability, high danger, and poor environmental friendliness. Therefore, a safer and more environmentally friendly shock wave fracturing device is currently used for rock breaking.

[0003] When the shock wave fracturing device breaks rocks, it is necessary to fix the shock wave fracturing device at a set position in a drill hole in the rock mass or concrete. However, the shock waves generated during the operation of the shock wave fracturing device will exert a large thrust on the shock wave fracturing device. Therefore, there is a safety hazard that the shock wave fracturing device may rush out of the drill hole, and at the same time, a part of the shock wave energy will be lost, thus affecting the smooth progress of the shock wave fracturing device during rock breaking. Summary of the Utility Model

[0004] By providing a shock wave fracturing device with water sealing and fixing functions in the embodiments of this application, the problem of poor fixing effect of the shock wave fracturing device in the prior art in the drill hole is solved.

[0005] To achieve the above objective, the embodiments of the present utility model provide a shock wave fracturing device with water sealing and fixing functions, including a metal wire, a water sealing support, a first electrode rod, a second electrode rod, an electrode support, a tension rod, and a tension nut;

[0006] The electrode support is installed at the front end of the water sealing support, the first electrode rod and the second electrode rod are installed at the front end of the electrode support, and the front ends of the first electrode rod and the second electrode rod are respectively connected to both ends of the metal wire;

[0007] The water sealing support includes a plurality of insulating partitions and a plurality of water sealing rings, and the water sealing rings are arranged between two of the insulating partitions;

[0008] The tension rod penetrates through the water sealing support, the front end of the tension rod is fixed on the electrode support, a threaded section is provided at the rear end of the tension rod, and the tension nut is arranged on the threaded section and abuts against the rear end of the water sealing support.

[0009] In a possible implementation, the electrode support includes an insulating electrode seat and a connecting base body. Bolt slots are provided on both sides of the insulating electrode seat, and fastening bolts are arranged in the bolt slots. The rear ends of the fastening bolts are screwed into the threaded holes at the front end of the connecting base body;

[0010] The front end of the tension rod is screwed into the threaded hole at the rear end of the connecting base body.

[0011] In a possible implementation, the rear end of the first electrode rod extends into the hole of the insulating electrode seat and is connected to the front end of the first conductive rod. The rear end of the first conductive rod passes through the connecting base body and the water sealing support. A front insulating tube is sleeved on the part of the first conductive rod located at the connecting base body;

[0012] The rear end of the second electrode rod passes through the insulating electrode seat and is then connected to the front end of the connecting base body. The front end of the second conductive rod passes through the water sealing support and is connected to the rear end of the connecting base body. The connecting base body is made of a metal material.

[0013] In a possible implementation, annular platforms that cooperate with the front end face of the insulating electrode seat are provided on the front sections of both the first electrode rod and the second electrode rod.

[0014] In a possible implementation, the rear end of the first electrode rod is screwed into the threaded sleeve at the front end of the first conductive rod. The front end of the front insulating tube abuts against the rear end of the threaded sleeve. A stepped hole that cooperates with the threaded sleeve is provided on the insulating electrode seat, and a stepped hole that cooperates with the rear end of the insulating tube is provided on the water sealing support.

[0015] In a possible implementation, a protective bracket is installed at the rear end of the water sealing support. The protective bracket includes a bottom plate and a support frame;

[0016] The bottom plate is installed at the rear end of the water sealing support. The bottom plate is used to cooperate with the drilling hole opening, and the support frame is installed at the rear end of the bottom plate.

[0017] In a possible implementation, a rear insulating tube is sleeved on the rear end of the first conductive rod. The front end of the rear insulating tube passes through the bottom plate and extends into the rear end of the water sealing support.

[0018] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0019] An embodiment of the present utility model provides a shock wave fracturing device with water sealing and fixing functions. When the device is used, the device is placed into a drill hole, and then the tensioning nut is rotated. The tensioning nut always abuts against the rear end of the water sealing support, so that the threaded section of the tensioning rod continuously extends out of the rear end of the water sealing support, thereby continuously applying a force to squeeze the water sealing ring through the insulating partition. The outer diameter of the water sealing ring becomes larger under extrusion until it abuts against the hole wall of the drill hole. After the water sealing ring abuts tightly against the hole wall, the device achieves the purposes of sealing and fixing through the water sealing ring. Then, a high-voltage direct current is passed through the metal wire through the first electrode rod and the second electrode rod. After the high-voltage direct current is applied to the metal wire, the metal wire undergoes electro-explosion to form a shock wave. The water sealing support of the present utility model can fix the position of the device, prevent the device from being impacted and flying out of the drill hole by the shock wave force, and at the same time can also reduce the energy loss generated during the instant discharge of the device. The device can play a certain role in water sealing, and thus when operating on an upward drill hole, it can prevent a large amount of water from leaking, thereby ensuring the smooth progress of the electro-explosion of the metal wire. Therefore, the device has good operation effect, high safety, strong practicability, and is convenient for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments recorded in the present application. For those of ordinary skill in the art, other accompanying drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic structural diagram of a shock wave fracturing device with water sealing and fixing functions provided by an embodiment of the present utility model.

[0022] Figure 2 It is a schematic diagram of the use state of a shock wave fracturing device with water sealing and fixing functions provided by an embodiment of the present utility model.

[0023] Reference numerals: 1 - metal wire; 2 - water sealing support; 21 - insulating partition; 22 - water sealing ring; 3 - first electrode rod; 4 - second electrode rod; 5 - electrode support; 51 - insulating electrode seat; 52 - connecting matrix; 6 - tensioning rod; 7 - tensioning nut; 8 - fastening bolt; 9 - first conductive rod; 91 - threaded sleeve; 10 - front insulating tube; 11 - second conductive rod; 12 - bottom plate; 13 - support frame; 14 - rear insulating tube. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the embodiments of the present utility model 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 should not be construed as a limitation to the present utility model. The terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0026] As Figure 1 and Figure 2 shown, the shock wave cracking device with water sealing and fixing functions provided by the embodiments of the present utility model includes an electrode support 5, a water sealing support 2, a first electrode rod 3, a second electrode rod 4, a metal wire 1, a tension rod 6, and a tension nut 7.

[0027] The electrode support 5 is installed at the front end of the water sealing support 2. The first electrode rod 3 and the second electrode rod 4 are installed at the front end of the electrode support 5. The front ends of the first electrode rod 3 and the second electrode rod 4 are respectively connected to both ends of the metal wire 1.

[0028] The water sealing support 2 includes a plurality of insulating partitions 21 and a plurality of water sealing rings 22. The water sealing rings 22 are arranged between two insulating partitions 21.

[0029] The tension rod 6 penetrates through the water sealing support 2. The front end of the tension rod 6 is fixed on the electrode support 5. A threaded section is provided at the rear end of the tension rod 6, and a tension nut 7 is provided on the threaded section. The tension nut 7 abuts against the rear end of the water sealing support 2.

[0030] It should be noted that the water sealing ring 22 can be made of flexible rubber material. The two ends of the metal wire 1 are fixed to the front ends of the first electrode rod 3 and the second electrode rod 4 through bolt assemblies. The two ends of the water sealing support 2 are two insulating partitions 21. In this embodiment, the number of insulating partitions 21 is four, and the number of water sealing rings 22 is three. The two insulating partitions 21 at both ends are used for docking, so they are relatively thick.

[0031] When the device is in use, the device is placed into the drilling hole, and then the tensioning nut 7 is rotated. The tensioning nut 7 always abuts against the rear end of the water sealing support 2, so that the threaded section of the tensioning rod 6 continuously extends out of the rear end of the water sealing support 2, thereby continuously applying force to squeeze the water sealing ring 22 through the insulating partition 21. The outer diameter of the water sealing ring 22 becomes larger under extrusion until it abuts against the hole wall of the drilling hole. After the water sealing ring 22 abuts tightly against the hole wall, the device realizes the purposes of sealing and fixing through the water sealing ring 22. Then, high-voltage direct current is passed through the metal wire 1 through the first electrode rod 3 and the second electrode rod 4. After the high-voltage direct current is applied to the metal wire 1, the metal wire 1 undergoes electro-explosion to form a shock wave. The water sealing support 2 of the present utility model can fix the position of the device, prevent the device from being impacted and flying out of the drilling hole due to the force applied by the shock wave, and at the same time can also reduce the energy loss generated during the instant discharge of the device. The device can play a certain role in water sealing, and thus when operating on the upward drilling hole, it can prevent a large amount of water from leaking, thereby ensuring the smooth progress of the electro-explosion of the metal wire 1. Therefore, the device has good operating effects, high safety, strong practicability, and is convenient for popularization and use.

[0032] In this embodiment, the electrode support 5 includes an insulating electrode seat 51 and a connecting base 52. Bolt grooves are provided on both sides of the insulating electrode seat 51, and fastening bolts 8 are arranged in the bolt grooves. The rear ends of the fastening bolts 8 are screwed into the threaded holes at the front end of the connecting base 52.

[0033] The front end of the tensioning rod 6 is screwed into the threaded hole at the rear end of the connecting base 52.

[0034] It should be noted that the threaded connection is convenient for maintaining the device.

[0035] In this embodiment, the rear end of the first electrode rod 3 extends into the hole of the insulating electrode seat 51 and is connected to the front end of the first conductive rod 9. The rear end of the first conductive rod 9 passes through the connecting base 52 and the water sealing support 2. A front insulating tube 10 is sleeved on the part of the first conductive rod 9 located at the connecting base 52.

[0036] The rear end of the second electrode rod 4 passes through the insulating electrode seat 51 and is then connected to the front end of the connecting base 52. The front end of the second conductive rod 11 passes through the water sealing support 2 and is then connected to the rear end of the connecting base 52. The connecting base 52 is made of metal material.

[0037] It should be noted that the front insulating tube 10 prevents the first electrode rod 3 from forming an electrically conductive connection relationship by connecting the base body 52 and the second electrode rod 4.

[0038] In this embodiment, annular platforms are provided at the front segments of the first electrode rod 3 and the second electrode rod 4, which are adapted to the front end face of the insulating electrode base 51.

[0039] It should be noted that the annular platforms can tighten and fix the first electrode rod 3 and the second electrode rod 4.

[0040] In this embodiment, the rear end of the first electrode rod 3 is screwed into the threaded sleeve 91 at the front end of the first conductive rod 9. The front end of the front insulating tube 10 abuts against the rear end of the threaded sleeve 91. A stepped hole adapted to the threaded sleeve 91 is provided on the insulating electrode base 51, and a stepped hole adapted to the rear end of the insulating tube is provided on the water sealing support 2.

[0041] It should be noted that the rear end of the first electrode rod 3 is threadedly connected to the threaded sleeve 91, so it is convenient for maintenance. The provision of the stepped hole enables the threaded sleeve 91 and the insulating tube to achieve a tight fit relationship, thereby improving the fixing effect.

[0042] In this embodiment, a protective bracket is installed at the rear end of the water sealing support 2. The protective bracket includes a bottom plate 12 and a support frame 13. The bottom plate 12 is installed at the rear end of the water sealing support 2, and the bottom plate 12 is adapted to the drilling orifice. The support frame 13 is installed at the rear end of the bottom plate 12.

[0043] It should be noted that when the drilling is a downward drilling, the device can be hung at the orifice through the bottom plate 12, thereby improving the fixing effect of the device. The radius of the bottom plate 12 is 3 to 5 times the radius of the drilling, and the bottom plate 12 can also reduce the energy loss generated during the discharge of the device. When the drilling is an upward drilling, the device can be fixed at the drilling through the support frame 13 by using a support device, thereby reducing the burden on the water sealing support 2 during fixation. The bottom plate 12 can also play a role in limiting the position, so that the wire 1 is located at a set depth in the drilling.

[0044] In this embodiment, a rear insulating tube 14 is sleeved on the rear end of the first conductive rod 9, and the front end of the rear insulating tube 14 passes through the bottom plate 12 and extends into the rear end of the water sealing support 2.

[0045] It should be noted that since the protective bracket is made of metal, the rear insulating tube 14 needs to be provided to keep the first electrode rod 3 and the second electrode rod 4 in a non-conductive connection relationship.

[0046] In this embodiment, for those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model.

Claims

1. A shock wave fracturing device with water sealing and fixing functions, characterized in that: It includes a wire (1), a water-sealing support (2), a first electrode rod (3), a second electrode rod (4), an electrode support (5), a tension rod (6) and a tension nut (7); The electrode support (5) is installed at the front end of the water-sealing support (2). The first electrode rod (3) and the second electrode rod (4) are installed at the front end of the electrode support (5). The front ends of the first electrode rod (3) and the second electrode rod (4) are respectively connected to both ends of the wire (1); The water-sealing support (2) includes a plurality of insulating partitions (21) and a plurality of water-sealing rings (22). The water-sealing rings (22) are arranged between two of the insulating partitions (21); The tension rod (6) penetrates through the water-sealing support (2). The front end of the tension rod (6) is fixed on the electrode support (5). A threaded section is provided at the rear end of the tension rod (6). The tension nut (7) is arranged on the threaded section, and the tension nut (7) abuts against the rear end of the water-sealing support (2).

2. The shock wave fracturing device with water sealing and fixing functions according to claim 1, characterized in that: The electrode support (5) includes an insulating electrode seat (51) and a connecting base (52). Bolt grooves are provided on both sides of the insulating electrode seat (51). Fastening bolts (8) are arranged in the bolt grooves. The rear ends of the fastening bolts (8) are screwed into the threaded holes at the front end of the connecting base (52); The front end of the tension rod (6) is screwed into the threaded hole at the rear end of the connecting base (52).

3. The shock wave fracturing device with water sealing and fixing functions according to claim 2, characterized in that: The rear end of the first electrode rod (3) extends into the hole of the insulating electrode seat (51) and is connected to the front end of a first conductive rod (9). The rear end of the first conductive rod (9) passes through the connecting base (52) and the water-sealing support (2). A front insulating tube (10) is sleeved on the part of the first conductive rod (9) located at the connecting base (52); The rear end of the second electrode rod (4) passes through the insulating electrode seat (51) and is then connected to the front end of the connecting base (52). The front end of a second conductive rod (11) passes through the water-sealing support (2) and is then connected to the rear end of the connecting base (52). The connecting base (52) is made of a metal material.

4. The shock wave fracturing device with water sealing and fixing functions according to claim 3, characterized in that: Ring platforms that match the front end face of the insulating electrode seat (51) are provided on the front sections of both the first electrode rod (3) and the second electrode rod (4).

5. The shock wave fracturing device with water sealing and fixing functions according to claim 3, characterized in that: The rear end of the first electrode rod (3) is screwed into a threaded sleeve (91) at the front end of the first conductive rod (9). The front end of the front insulating tube (10) abuts against the rear end of the threaded sleeve (91). A stepped hole that matches the threaded sleeve (91) is provided on the insulating electrode seat (51), and a stepped hole that matches the rear end of the insulating tube is provided on the water-sealing support (2).

6. The shock wave fracturing device with water sealing and fixing functions according to claim 3, characterized in that: A protective bracket is installed at the rear end of the water-sealing support (2). The protective bracket includes a bottom plate (12) and a support frame (13); The bottom plate (12) is installed at the rear end of the water-sealing support (2). The bottom plate (12) is used to match the drilling hole opening. The support frame (13) is installed at the rear end of the bottom plate (12).

7. The shock wave fracturing device with water sealing and fixing functions according to claim 6, characterized in that: A rear insulating tube (14) is sleeved on the rear end of the first conductive rod (9), and the front end of the rear insulating tube (14) passes through the bottom plate (12) and then extends into the rear end of the water sealing support (2).

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