In-hole liquid-filled fracturing device with conveniently assembled support

Abstract

The utility model relates to the technical field of rock fracturing device, especially to a hole liquid filling fracturing device of convenient combination support, including plastic soft belt, liquid absorption filler filled in the inboard of plastic soft belt, liquid inlet pipe installed in the middle part of plastic soft belt, exhaust pipe fixed on the right side of plastic soft belt upper end and with plastic soft belt inside intercommunication and electronic match head installed on the left side of plastic soft belt upper end and the ignition head part extends to the inboard of liquid absorption filler, the outside of plastic soft belt is provided with adjustable type support mechanism for the tool convenient support fixed of different outer diameter plastic soft belt exemption. The utility model can be applicable to the tool free adjustment support fixed operation of different outer diameter liquid filling fracturing device, effectively reduces the stress shaking, deviation, falling or difficult installation and so on of support structure after installation, thereby improves the convenience, stability and applicability of liquid filling fracturing device support protection.

Description

Technical Field

[0001] This utility model relates to the field of rock-splitting device technology, and in particular to a convenient combined support for a liquid-filled rock-splitting device for caverns. Background Technology

[0002] Instant expansion and rock splitting utilizes a patented gas-based device to achieve a physical reaction, instantly burning within the rock to create pressure exceeding 300 MPa, thus breaking the rock mass. Because there is no oxygen inside the rock mass, the energy released by the instantaneous combustion is released immediately. The broken rock fragments are buried within the rock mass containing the device, therefore posing no fire hazard, producing no vibration waves or shock waves—making it a very safe and effective technology.

[0003] For example, Chinese utility model patent CN2022222451944, entitled "A Liquid-Injected Fracturing Device with Support Structure for Caves," describes four types of support structures for maintaining the vertical shape of the fracturing device. Among them, the support structure described in Example 1 is a commonly used support structure in actual rock-fracturing processes. Compared with the support structures in Examples 2, 3, and 4, it has the advantages of large support area, good protection effect, convenient and efficient installation, and low cost. However, in actual rock-fracturing applications, the following problems exist: In actual installation, the cage-like support structure of Example 1 requires the inner diameter of the support structure to be equal to or slightly smaller than the outer diameter of the liquid-injected fracturing device for stable installation. If the inner diameter of the support structure is too large, the support structure is prone to shaking, shifting, or falling off under external force on the liquid-injected fracturing device, resulting in failure of support and protection for the liquid-injected fracturing device. If the inner diameter of the support structure is too small, it is difficult to effectively insert the liquid-injected fracturing device into the support device. This type of support structure is difficult to adjust for support and protection using liquid-injected fracturing devices with different outer diameters.

[0004] In view of this, it is particularly important to design and manufacture an adjustable support mechanism that can be used to adjust and install liquid-filled fracturing devices with different outer diameters, improve the stability and applicability of the assembly, and apply it in the actual use of liquid-filled fracturing devices in tunnels. Utility Model Content

[0005] The purpose of this utility model is to solve the problem that the previous generation of in-cavity liquid-filled fracturing devices with support structures are difficult to be used for adjustment and support protection of liquid-filled fracturing devices with different outer diameters, resulting in poor support stability and applicability. Therefore, a convenient combination support in-cavity liquid-filled fracturing device is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A convenient combination support device for filling and fracturing holes with liquid includes a plastic strip, a liquid-absorbing filler inside the plastic strip, a liquid inlet pipe installed in the middle of the plastic strip, an exhaust pipe fixed to the upper right side of the plastic strip and connected to the inside of the plastic strip, and an electronic match head installed on the upper left side of the plastic strip with the ignition head extending to the inside of the liquid-absorbing filler. The plastic strip is provided with an adjustable support mechanism for tool-free convenient support and fixation of plastic strips of different outer diameters.

[0008] As a further description of the above technical solution:

[0009] The adjustable support mechanism includes multiple support vertical bars arranged in a ring array outside the plastic soft strip, multiple central buckles fixed at equal intervals between the middle of the multiple support vertical bars and distributed with open front ends, a sliding buckle part disposed at the front end of the central buckle and movably covering the opening of the central buckle, an outer buckle fixed at the upper and lower ends of the multiple support vertical bars and distributed with open front ends, and an adjusting locking part disposed at the front end of the outer buckle and movably fixed between the opening of the outer buckle.

[0010] As a further description of the above technical solution:

[0011] The sliding buckle includes a guide slide bar integrally fixed to the left side of the front end of the central buckle ring and a guide slide groove opened on the right side of the front end of the central buckle ring to accommodate the guide slide bar.

[0012] As a further description of the above technical solution:

[0013] The locking mechanism includes a locking strap integrally fixed to the left side of the front end of the external buckle, multiple limiting lock holes equally spaced in the middle of the locking strap, and a limiting lock post fixed to the right side of the front end of the external buckle and matching the multiple limiting lock holes.

[0014] As a further description of the above technical solution:

[0015] The front right side of the external buckle is fixedly connected to an anti-deviation buckle for wrapping and locking the strap.

[0016] As a further description of the above technical solution:

[0017] The inner sides of the multiple central buckles and external buckles are all fixedly connected with multiple anti-slip protrusions in a ring array.

[0018] As a further description of the above technical solution:

[0019] The absorbent filler is a long roll of paper.

[0020] As a further description of the above technical solution:

[0021] The inlet tube has multiple drainage holes arranged in a ring array on the outside of the plastic strip.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0023] In this utility model, the original support structure has been scientifically and rationally improved. This adjustable support mechanism mainly consists of support bars, a central buckle and an outer buckle with an open front end, a guide strip, a guide groove, a locking strap, and a limiting lock post. The entire support mechanism can be wrapped around the outside of the liquid-filled fracturing device. The guide strip on the central buckle can slide and adjust within the guide groove. At the same time, the locking strap on the outer buckle can pass through the anti-deviation buckle and be fixed at a fixed point on the limiting lock post, thus locking the outer buckle to the outside of the liquid-filled fracturing device. This support mechanism is suitable for tool-free adjustment and support fixing operations of liquid-filled fracturing devices with different outer diameters. It effectively reduces the occurrence of problems such as shaking, displacement, falling off, or difficulty in installation after the support structure is installed, thereby improving the convenience, stability, and applicability of supporting and protecting the liquid-filled fracturing device. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the integrated structure of a convenient combined support for a fluid-filled fracturing device inside a tunnel, as proposed in this utility model.

[0025] Figure 2 This is a longitudinal sectional view of the fluid-filled fracturing device for tunnels according to this utility model;

[0026] Figure 3 This is a schematic diagram of the adjustable support mechanism in this utility model.

[0027] Legend:

[0028] 1. Plastic soft strip; 2. Liquid absorbent filler; 3. Liquid inlet tube; 301. Drain hole; 4. Exhaust pipe; 5. Electronic match head; 6. Supporting vertical bar; 601. Central buckle; 602. External buckle; 603. Guide slide bar; 604. Guide slide groove; 605. Locking strap; 606. Limiting lock hole; 607. Limiting lock post; 608. Anti-deviation buckle; 609. Anti-slip protrusion. Detailed Implementation

[0029] 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, and 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.

[0030] Please see Figure 1-3 This utility model provides a technical solution: a convenient combination support for a cavity-filling and fracturing device, including a plastic soft strip 1, a liquid-absorbing filler 2 filled inside the plastic soft strip 1, a liquid inlet pipe 3 installed in the middle of the plastic soft strip 1, an exhaust pipe 4 fixed to the upper right side of the plastic soft strip 1 and connected to the inside of the plastic soft strip 1, and an electronic match head 5 installed on the upper left side of the plastic soft strip 1 with the ignition head extending to the inside of the liquid-absorbing filler 2. The plastic soft strip 1 is provided with an adjustable support mechanism for tool-free convenient support and fixation of plastic soft strips 1 with different outer diameters.

[0031] Specifically, such as Figure 1-3 As shown, the adjustable support mechanism includes multiple support vertical bars 6 arranged in a ring array outside the plastic soft strip 1, multiple central buckles 601 equidistantly fixed between the middle parts of the multiple support vertical bars 6 and distributed with open front ends, a sliding buckle part disposed at the front end of the central buckle 601 and movably covering the opening of the central buckle 601, an outer buckle 602 fixed at the upper and lower ends of the multiple support vertical bars 6 and distributed with open front ends, and an adjusting locking part disposed at the front end of the outer buckle 602 and movably fixed between the opening of the outer buckle 602.

[0032] The sliding buckle includes a guide slide 603 integrally fixed to the left side of the front end of the central buckle 601 and a guide groove 604 opened on the right side of the front end of the central buckle 601 to accommodate the guide slide 603. When the guide slide 603 slides into the guide groove 604, the opening at the front end of the central buckle 601 can be wrapped and protected to prevent external objects from directly contacting the plastic soft strip 1 through the front end of the central buckle 601.

[0033] The locking mechanism includes a locking strap 605 integrally fixed to the left side of the front end of the external buckle 602, multiple limiting lock holes 606 equidistantly opened in the middle of the locking strap 605, and a limiting lock post 607 fixed to the right side of the front end of the external buckle 602 and matching the multiple limiting lock holes 606. When the limiting lock hole 606 at the designated position on the locking strap 605 is inserted into the limiting lock post 607, the opening of the external buckle 602 can be closed and locked.

[0034] In addition, the front right side of the external buckle 602 is fixedly connected to the left side of the limiting lock post 607, and is an anti-deviation buckle 608 for wrapping the locking strap 605. This can limit and lock the fixed part of the locking strap 605 to the external buckle 602, thereby further improving the effect of the locking strap 605 after it is fixed by the limiting lock hole 606 and the limiting lock post 607.

[0035] Meanwhile, multiple anti-slip protrusions 609 are fixedly connected in a ring array on the inner side of the multiple central buckles 601 and the external buckles 602. The setting of the anti-slip protrusions 609 effectively increases the contact area and contact friction between the central buckles 601, the external buckles 602 and the plastic soft strip 1, thereby improving the fixing effect of the adjustable support mechanism on the liquid-filled fracturing device.

[0036] Specifically, such as Figure 1 and Figure 2 As shown, the liquid-absorbing filler 2 is a long roll of paper. Using long rolls of paper as the liquid-absorbing filler 2 has the advantages of convenient procurement, convenient assembly, better overall load-bearing effect after installation, and good liquid absorption and conduction effect, thereby effectively reducing the manufacturing cost of the liquid-filled fracturing device and improving the performance of the liquid-filled fracturing device.

[0037] Specifically, such as Figure 1 and Figure 2 As shown, the outside of the liquid inlet pipe 3 is provided with multiple drainage holes 301 arranged in a ring array on the inside of the plastic soft strip 1. The liquid oxygen or other ignition-expandable liquid that enters through the liquid inlet pipe 3 can be transported outward from multiple directions to the liquid absorbent filler 2, so that the liquid filling and fracturing device can be fully immersed in liquid to improve the subsequent stone fracturing effect.

[0038] Working principle: When the liquid-filled fracturing device is assembled and needs to be supported and protected, the operator can take the adjustable support mechanism and wrap it around the outside of the plastic soft belt 1. Then, the guide slide 603 on the central buckle 601 is slid into the guide slide groove 604. The locking strap 605 on the outer buckle 602 is pre-passed through the anti-deviation buckle 608. Then, the outer buckle 602 is pressed inward and stably pressed onto the plastic soft belt 1. The limiting lock hole 606 at the designated position on the locking strap 605 is inserted into the limiting lock post 607. At this time, the outer buckle 602 can be stably locked and fixed to the outside of the plastic soft belt 1, thus completing the tool-free and convenient assembly operation between the adjustable support mechanism and the liquid-filled fracturing device.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A convenient combination support for a cavity-filling fracturing device, comprising a plastic soft strip (1), a liquid-absorbing filler (2) filled inside the plastic soft strip (1), a liquid inlet pipe (3) installed in the middle of the plastic soft strip (1), an exhaust pipe (4) fixed to the upper right side of the plastic soft strip (1) and connected to the inside of the plastic soft strip (1), and an electronic match head (5) installed on the upper left side of the plastic soft strip (1) with the ignition head extending to the inside of the liquid-absorbing filler (2), characterized in that, The plastic soft strip (1) is provided with an adjustable support mechanism on its exterior for tool-free and convenient support and fixation of plastic soft strips (1) with different outer diameters.

2. The convenient combined support cavity-filling fracturing device according to claim 1, characterized in that, The adjustable support mechanism includes multiple support vertical strips (6) arranged in a ring array outside the plastic soft strip (1), multiple central buckles (601) fixed at equal intervals between the middle parts of the multiple support vertical strips (6) and with open front ends, a sliding buckle part located at the front end of the central buckle (601) and movably covering the opening of the central buckle (601), an external buckle (602) fixed at the upper and lower ends of the multiple support vertical strips (6) and with open front ends, and an adjustment locking part located at the front end of the external buckle (602) and movably fixed between the opening of the external buckle (602).

3. The convenient combined support cavity-filling fracturing device according to claim 2, characterized in that, The sliding buckle includes a guide slide (603) integrally fixed to the left front end of the central buckle (601) and a guide groove (604) opened on the right front end of the central buckle (601) for accommodating the guide slide (603).

4. The convenient combined support cavity-filling fracturing device according to claim 2, characterized in that, The locking mechanism includes a locking strap (605) integrally fixed to the left side of the front end of the external buckle (602), a plurality of limiting lock holes (606) equidistantly opened in the middle of the locking strap (605), and a limiting lock post (607) fixed to the right side of the front end of the external buckle (602) and matching the plurality of limiting lock holes (606).

5. A convenient combined support cavity-filling fracturing device according to claim 4, characterized in that, The front right side of the external buckle (602) is fixedly connected to an anti-deviation buckle (608) for wrapping and locking the strap (605) on the left side of the limiting lock post (607).

6. A convenient combined support cavity-filling fracturing device according to claim 2, characterized in that, The inner sides of the multiple central buckles (601) and external buckles (602) are all fixedly connected with multiple anti-slip protrusions (609) in a ring array.

7. A convenient combined support cavity-filling fracturing device according to claim 1, characterized in that, The absorbent filler (2) is a long roll of paper.

8. A convenient combined support cavity-filling fracturing device according to claim 1, characterized in that, The outside of the liquid inlet pipe (3) is provided with multiple drainage holes (301) arranged in a ring array on the inside of the plastic soft strip (1).

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