Shock wave fracturing device capable of achieving one-way sealing

Abstract

The shock wave fracturing device comprises a tensioning rod, the tensioning rod penetrates through a water sealing support, a limiting sleeve and a hanging plate, and the lower end of the tensioning rod is fixed to the bottom of the water sealing support; the water sealing support comprises a plurality of partition plates and a plurality of water sealing rings, and the water sealing rings are arranged between the two partition plates; the limiting sleeve is arranged above the water sealing support, the hanging plate is arranged above the limiting sleeve, the lower end of the limiting sleeve abuts against the top face of the water sealing support, and the upper end of the limiting sleeve abuts against the bottom face of the hanging plate. The tensioning mechanism is arranged on the hanging plate and is used for pulling the tensioning rod; the two electrode rods are fixed on the hanging plate, and the lower ends of the two electrode rods are respectively connected to the two ends of the metal wire. The problem that in the prior art, when a shock wave fracturing device carries out shock wave operation on a downward drill hole, a large amount of water needs to be injected, and then the construction efficiency is low is solved.

Description

Technical Field

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

[0002] In aspects such as the demolition of urban concrete beams, and the pre-fracturing of tunnel rocks and mine rocks, it is necessary to pre-fracture the rock mass or concrete first to facilitate further processing. Usually, explosive initiators such as explosives have great technical advantages in rock breaking, but the shock waves generated by explosives have poor controllability, high danger, and poor environmental protection. 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 the downward drilling hole on the rock mass or concrete, and then inject water into the drilling hole to submerge the metal wire of the shock wave fracturing device. When the drilling hole is long, a large amount of water needs to be injected, so there is a problem of low construction efficiency. Utility Model Content

[0004] The embodiment of this application provides a shock wave fracturing device with unidirectional sealing, which solves the problem in the prior art that when the shock wave fracturing device performs shock wave operations on the downward drilling hole, a large amount of water needs to be injected, and thus there is a problem of low construction efficiency.

[0005] In order to achieve the above object, the embodiment of the utility model provides a shock wave fracturing device with unidirectional sealing, which includes a tension rod, a water sealing support, a limiting sleeve, a hanging plate, a tensioning mechanism, electrode rods, and a metal wire;

[0006] The tension rod penetrates through the water sealing support, the limiting sleeve, and the hanging plate, and the lower end of the tension rod is fixed to the bottom of the water sealing support;

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

[0008] The limiting sleeve is arranged above the water sealing support, the hanging plate is arranged above the limiting sleeve, the lower end of the limiting sleeve abuts against the top surface of the water sealing support, and the upper end of the limiting sleeve abuts against the bottom surface of the hanging plate;

[0009] The tensioning mechanism is arranged on the hanging plate, and the tensioning mechanism is used to pull the tension rod;

[0010] Two of the electrode rods are fixed on the hanging plate, and the lower ends of the two electrode rods are respectively connected to both ends of the metal wire.

[0011] In a possible implementation, a limiting plate is provided at the lower end of the tension rod, and the limiting plate abuts against the bottom surface of the water sealing support.

[0012] In a possible implementation, annular bosses are provided at both the upper and lower ends of the limiting sleeve, and the two annular bosses respectively abut against the bottom surface of the hanging plate and the top surface of the water sealing support.

[0013] In a possible implementation, an insulating sleeve is provided between the electrode rod and the hanging plate.

[0014] In a possible implementation, a water injection hole is provided on the hanging plate.

[0015] In a possible implementation, the water sealing ring is made of flexible rubber material.

[0016] In a possible implementation, the tensioning mechanism includes a tensioning nut, the tensioning nut is threadedly connected to the tension rod, and the bottom surface of the tensioning nut abuts against the top surface of the hanging plate.

[0017] In a possible implementation, the tensioning mechanism includes a telescopic device, the telescopic device is installed on the top surface of the hanging plate, and the telescopic end of the upper end of the telescopic device is connected to the upper end of the tension rod through a synchronous frame.

[0018] In a possible implementation, the number of the tension rods is more than two, and the more than two tension rods are evenly distributed in the circumferential direction of the water sealing support.

[0019] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0020] An embodiment of the utility model provides a shock wave fracturing device with unidirectional sealing. When the device is in use, it is placed into a downward drilling hole, and the device is suspended at the hole opening through a hanging plate. Then, a tensioning mechanism is used to pull a tensioning rod, so that the upper end of the tensioning rod continuously extends out of the hanging plate. Since the water sealing support, the limit sleeve, and the hanging plate are mutually abutted and fixed, the water sealing ring is continuously forced and extruded through a partition plate. The outer diameter of the water sealing ring becomes larger under extrusion until it abuts against the hole wall of the drilling hole. After the water sealing ring and the hole wall are tightly abutted, the device realizes the purpose of sealing through the water sealing ring. Then, water is injected into the drilling hole. Under the action of the water sealing ring, less water leaks to the bottom of the drilling hole, so that the metal wire is always in the water. A high-voltage direct current is passed through the metal wire through a first electrode rod and a second electrode rod. After the high-voltage direct current is applied to the metal wire, the metal wire undergoes an electro-explosion to form a shock wave. The hanging plate of the utility model can fix the device at the hole opening of the drilling hole, and at the same time, it can also prevent sundries from rushing out of the drilling hole during the shock wave operation. The device can play a good role in water sealing, thereby preventing a large amount of water leakage, and thus 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

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments recorded in the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 FIG. is a schematic structural diagram of a shock wave fracturing device with unidirectional sealing provided by Embodiment 1 of the utility model.

[0023] Figure 2 FIG. is a schematic structural diagram of a shock wave fracturing device with unidirectional sealing provided by Embodiment 2 of the utility model.

[0024] Figure 3 FIG. is a schematic diagram of the use state of a shock wave fracturing device with unidirectional sealing provided by Embodiment 2 of the utility model.

[0025] Reference numerals: 1 - tensioning rod; 2 - water sealing support; 21 - partition plate; 22 - water sealing ring; 3 - limit sleeve; 31 - annular boss; 4 - hanging plate; 41 - water injection hole; 5 - electrode rod; 6 - metal wire; 7 - limit plate; 8 - insulating sleeve; 9 - tensioning nut; 10 - telescopic device; 11 - synchronous frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] 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 some, but not all, of the embodiments of the present utility model. 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.

[0027] 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 thus should not be construed as a limitation of the present utility model. The terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, the terms "installation", "connection", "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.

[0028] As Figures 1 to 3 shown, the shock wave fracturing device capable of one-way sealing provided by the embodiments of the present utility model includes a tension rod 1, a water sealing support 2, a limit sleeve 3, a hanging plate 4, a tension mechanism, an electrode rod 5, and a metal wire 6.

[0029] The tension rod 1 passes through the water sealing support 2, the limit sleeve 3, and the hanging plate 4, and the lower end of the tension rod 1 is fixed to the bottom of the water sealing support 2.

[0030] The water sealing support 2 includes a plurality of partition plates 21 and a plurality of water sealing rings 22, and the water sealing rings 22 are arranged between two partition plates 21.

[0031] The limit sleeve 3 is arranged above the water sealing support 2, the hanging plate 4 is arranged above the limit sleeve 3, the lower end of the limit sleeve 3 abuts against the top surface of the water sealing support 2, and the upper end of the limit sleeve 3 abuts against the bottom surface of the hanging plate 4.

[0032] The tension mechanism is arranged on the hanging plate 4 and is used to pull the tension rod 1.

[0033] Two electrode rods 5 are fixed on the hanging plate 4, and the lower ends of the two electrode rods 5 are respectively connected to both ends of the metal wire 6.

[0034] It should be noted that both ends of the wire 6 are fixed by bolt assemblies and the electrode rods 5. Both ends of the water sealing support 2 are two partition plates 21. In this embodiment, the number of partition plates 21 is three, and the number of water sealing rings 22 is two. The radius of the hanging plate 4 is 2 to 5 times the drilling radius.

[0035] When the device is in use, the device is placed into the downward drilling hole, and the device is hung at the hole opening through the hanging plate 4. Then, the tension rod 1 is pulled through the tensioning mechanism, so that the upper end of the tension rod 1 continuously extends out of the hanging plate 4. Since the water sealing support 2, the limiting sleeve 3, and the hanging plate 4 are mutually abutted and fixed, the water sealing ring 22 is continuously forced and extruded through the partition plate 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 achieves the purpose of sealing through the water sealing ring 22. Then, water is injected into the drilling hole. The amount of water leaking to the bottom of the drilling hole under the action of the water sealing ring 22 is less, so that the wire 6 is always in water. High-voltage direct current is passed through the wire 6 through the first electrode rod 5 and the second electrode rod 5. After the high-voltage direct current is applied to the wire 6, the wire 6 undergoes electro-explosion to form a shock wave. The hanging plate 4 of the present utility model can fix the device at the drilling hole opening, and at the same time, it can also prevent debris from rushing out of the drilling hole during the shock wave operation. The device can play a good water sealing role, thereby preventing a large amount of water leakage, so as to ensure the smooth progress of the electro-explosion of the wire 6. Therefore, the device has good operation effect, high safety, strong practicability, and is convenient for popularization and use.

[0036] In this embodiment, a limiting plate 7 is provided at the lower end of the tension rod 1, and the limiting plate 7 abuts against the bottom surface of the water sealing support 2.

[0037] It should be noted that the purpose of fixation can be achieved by the abutment of the limiting plate 7, so the installation method is simple.

[0038] In this embodiment, annular bosses 31 are provided at both the upper and lower ends of the limiting sleeve 3, and the two annular bosses 31 respectively abut against the bottom surface of the hanging plate 4 and the top surface of the water sealing support 2.

[0039] It should be noted that the annular bosses 31 can increase the end face area at both the upper and lower ends of the limiting sleeve 3, thereby improving the fixation effect.

[0040] In this embodiment, an insulating sleeve 8 is provided between the electrode rod 5 and the hanging plate 4.

[0041] It should be noted that both the electrode rod 5 and the hanging plate 4 are made of metal materials, and the insulating sleeve 8 plays an insulating role.

[0042] In this embodiment, a water injection hole 41 is provided on the hanging plate 4.

[0043] It should be noted that the staff injects water into the drilling hole through the water injection hole 41.

[0044] In this embodiment, the water sealing ring 22 is made of flexible rubber material.

[0045] It should be noted that the water sealing ring 22 made of flexible rubber material is easy to be compressed, and thus is convenient to abut against the hole wall of the drill hole to achieve the purpose of sealing.

[0046] In this embodiment, the tensioning mechanism includes a tensioning nut 9. The tensioning nut 9 is in threaded connection with the tensioning rod 1, and the bottom surface of the tensioning nut 9 abuts against the top surface of the hanging plate 4.

[0047] It should be noted that by moving the tensioning rod 1 through the tensioning nut 9, the structure is simple and convenient for maintenance.

[0048] In this embodiment, the tensioning mechanism includes a telescopic device 10. The telescopic device 10 is installed on the top surface of the hanging plate 4, and the telescopic end at the upper end of the telescopic device 10 is connected to the upper end of the tensioning rod 1 through a synchronous frame 11.

[0049] It should be noted that the telescopic device 10 can adopt an electric telescopic rod or a hydraulic telescopic rod, and the telescopic device 10 can simultaneously pull a plurality of tensioning rods 1 synchronously.

[0050] In this embodiment, the number of the tensioning rods 1 is more than two, and the more than two tensioning rods 1 are evenly distributed in the circumferential direction of the water sealing support 2.

[0051] It should be noted that the number of the tensioning rods 1 in this embodiment is two.

[0052] In this embodiment, for those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention.

Claims

1. A shock wave fracturing device capable of one-way sealing, characterized in that: It includes a tension rod (1), a water sealing support (2), a limit sleeve (3), a hanging plate (4), a tensioning mechanism, an electrode rod (5) and a wire (6); The tension rod (1) penetrates through the water sealing support (2), the limit sleeve (3) and the hanging plate (4), and the lower end of the tension rod (1) is fixed to the bottom of the water sealing support (2); The water sealing support (2) includes a plurality of partition plates (21) and a plurality of water sealing rings (22), and the water sealing rings (22) are arranged between two of the partition plates (21); The limit sleeve (3) is arranged above the water sealing support (2), the hanging plate (4) is arranged above the limit sleeve (3), the lower end of the limit sleeve (3) abuts against the top surface of the water sealing support (2), and the upper end of the limit sleeve (3) abuts against the bottom surface of the hanging plate (4); The tensioning mechanism is arranged on the hanging plate (4), and the tensioning mechanism is used to pull the tension rod (1); Two of the electrode rods (5) are fixed on the hanging plate (4), and the lower ends of the two electrode rods (5) are respectively connected to both ends of the wire (6).

2. The shock wave fracturing device capable of unidirectional sealing according to claim 1, wherein: A limit plate (7) is arranged at the lower end of the tension rod (1), and the limit plate (7) abuts against the bottom surface of the water sealing support (2).

3. The shock wave fracturing device capable of unidirectional sealing according to claim 1, wherein: Circular bosses (31) are arranged at both the upper and lower ends of the limit sleeve (3), and the two circular bosses (31) respectively abut against the bottom surface of the hanging plate (4) and the top surface of the water sealing support (2).

4. The shock wave fracturing device capable of unidirectional sealing according to claim 1, characterized in that: An insulating sleeve (8) is arranged between the electrode rod (5) and the hanging plate (4).

5. The shock wave fracturing device capable of unidirectional sealing according to claim 1, characterized in that: A water injection hole (41) is arranged on the hanging plate (4).

6. The shock wave fracturing device capable of unidirectional sealing according to claim 1, wherein: The water sealing ring (22) is made of flexible rubber material.

7. The shock wave fracturing device capable of unidirectional sealing according to claim 1, wherein: The tensioning mechanism includes a tensioning nut (9), the tensioning nut (9) is in threaded connection with the tension rod (1), and the bottom surface of the tensioning nut (9) abuts against the top surface of the hanging plate (4).

8. The shock wave fracturing device capable of unidirectional sealing according to claim 1, wherein: The tensioning mechanism includes a telescopic device (10), the telescopic device (10) is installed on the top surface of the hanging plate (4), and the telescopic end of the upper end of the telescopic device (10) is connected to the upper end of the tension rod (1) through a synchronous frame (11).

9. The shock wave fracturing device capable of unidirectional sealing according to claim 7 or 8, characterized in that: The number of the tension rods (1) is more than two, and the more than two tension rods (1) are evenly distributed in the circumferential direction of the water sealing support (2).

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