Portable gas expansion rock breaking device

Abstract

The utility model discloses a portable gas expansion rock breaking device which comprises a PVC plastic pipe, a lower sealing cover is arranged at the bottom end of the PVC plastic pipe, an upper sealing cover is arranged at the top end of the PVC plastic pipe, a connecting pipe is arranged at the top end of the upper sealing cover, and an ignition lead is arranged at the top end of the upper sealing cover and located on one side of the connecting pipe. A pressure release valve is arranged at the top end of the upper sealing cover and located on the side, away from the ignition lead, of the connecting pipe. The rock breaking device has the beneficial effects that by arranging the connecting pipe, the sealing plug, the first spring and the hand screw bolt, when the rock breaking device needs to be used, the PVC plastic pipe can be immediately in butt joint with liquid oxygen supply equipment for oxygenation, and the PVC plastic pipe and the liquid oxygen supply equipment are fixedly placed through the hand screw bolt to fall off during oxygenation; by arranging the leakproof assembly, the connecting pipe and the air outlet head of the liquid oxygen supply equipment can be sealed during oxygenation, liquid oxygen is prevented from flowing out through a gap between the connecting pipe and the air outlet head of the liquid oxygen supply equipment, and the safety of the liquid oxygen supply equipment is further improved.

Description

Technical Field

[0001] This utility model relates to the field of blasting technology, specifically to a portable gas expansion rock-breaking device. Background Technology

[0002] Current rock-breaking methods and technologies generally employ traditional explosives. However, explosive blasting requires highly skilled blasting techniques, is extremely unsafe, and is subject to strict government regulations. Explosives are prohibited or banned in many working environments (such as residential areas, near high-voltage power lines, and high-speed railways). Furthermore, blasting processes can easily generate flying rocks, vibrations, noise, and toxic gases. Gas blasting technology, on the other hand, utilizes the vaporization and expansion of easily vaporized liquid or solid substances to generate high-pressure gas. This gas causes the surrounding medium to expand and perform work, leading to rock fragmentation. It is safe and efficient, and has attracted widespread attention.

[0003] According to Chinese Patent CN202321370586.1, a portable gas expansion rock-breaking device is disclosed. This application includes an anti-static PVC plastic tube with an upper and lower sealing cap at each end. The upper sealing cap has a female quick-connect connector that passes through the upper sealing cap and connects to the liquid inlet pipe inside the anti-static PVC plastic tube. The female connector is used in conjunction with a male connector located in a liquid oxygen supply device. The upper sealing cap also has a pressure relief valve and an ignition lead, which passes through the upper sealing cap and extends into the anti-static PVC plastic tube. This device provides instant rock breaking upon filling, is easy to transport and store, and offers high safety during on-site operation. Existing expansion rock-breaking devices lack leak-proof structures during the oxygen filling process when connected to a liquid oxygen supply device, making liquid oxygen prone to leakage.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a portable gas expansion rock breaking device to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A portable gas expansion rock-breaking device includes a PVC plastic pipe with a lower sealing cap at the bottom and an upper sealing cap at the top. A connecting pipe is located at the top of the upper sealing cap. An ignition lead is located at the top of the upper sealing cap and on one side of the connecting pipe. A pressure relief valve is located at the top of the upper sealing cap and on the side of the connecting pipe away from the ignition lead. A partition is located within the connecting pipe, with a through hole at its top. A support plate is located within the connecting pipe and at the bottom of the partition. A sealing plug matching the through hole is located at the top of the support plate. The sealing plug is connected to the support plate via a spring. Symmetrically arranged hand-tightening bolts extending into the connecting pipe are located on the outer wall of the connecting pipe. A leak-proof component is located within the connecting pipe.

[0008] Preferably, both the lower sealing cap and the upper sealing cap are threadedly connected to the PVC plastic pipe.

[0009] Preferably, the connecting pipe has a threaded hole that matches the hand-tightening bolt.

[0010] Preferably, the leak-proof assembly includes an annular groove formed on the inner wall of the connecting pipe, an annular airbag disposed in the annular groove, an inflation box disposed at the top of the upper sealing cap and on one side of the connecting pipe, an inflation groove disposed in the inflation box, a matching movable plug disposed in the inflation groove, the bottom end of the movable plug being connected to the inflation box via a spring, an air inlet disposed on one side of the inflation box communicating with the inflation groove, an air supply pipe disposed on one side of the top of the inflation box, the bottom end of the air supply pipe extending into the inflation box and communicating with the inflation groove, and the top end of the air supply pipe extending into the annular groove and communicating with the annular airbag.

[0011] Preferably, the movable plug has a pressure rod at its top. The top of the pressure rod extends outside the inflation box and connects to the pressure block.

[0012] Preferably, a one-way valve is provided at the top of the inflation box and on the gas supply pipe.

[0013] Preferably, the outer wall of the annular airbag is provided with a venting pipe extending to the outside of the connecting pipe, and the end of the venting pipe away from the annular airbag is provided with a cap, which is threadedly connected to the venting pipe.

[0014] The beneficial effects of this utility model are as follows: By setting a connecting pipe, sealing plug, spring, and hand-tightening bolt, when the rock-breaking device needs to be used, the PVC plastic pipe can be immediately connected to the liquid oxygen supply equipment for oxygen filling. The hand-tightening bolt can fix it to the liquid oxygen supply equipment and prevent it from falling off during oxygen filling. By setting an anti-leakage component, the connection between the connecting pipe and the outlet of the liquid oxygen supply equipment can be sealed during oxygen filling, preventing liquid oxygen from flowing out through the gap between the connecting pipe and the outlet of the liquid oxygen supply equipment, thus further improving its safety. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a portable gas expansion rock-breaking device according to an embodiment of the present utility model;

[0017] Figure 2 This is a front view of a portable gas expansion rock-breaking device according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the upper sealing cover structure in a portable gas expansion rock-breaking device according to an embodiment of the present utility model;

[0019] Figure 4 This is a main cross-sectional view of the connecting pipe in a portable gas expansion rock-breaking device according to an embodiment of the present utility model;

[0020] Figure 5 This is a side sectional view of the connecting pipe in a portable gas expansion rock-breaking device according to an embodiment of the present utility model.

[0021] In the picture:

[0022] 1. PVC plastic pipe; 2. Lower sealing cap; 3. Upper sealing cap; 4. Connecting pipe; 5. Ignition lead; 6. Pressure relief valve; 7. Partition plate; 8. Through hole; 9. Sealing plug; 10. Spring 1; 11. Hand-tightening bolt; 12. Annular groove; 13. Annular airbag; 14. Inflation box; 15. Inflation groove; 16. Movable plug; 17. Spring 2; 18. Air inlet; 19. Air supply pipe; 20. Support plate; 21. Pressure rod; 22. Pressure block; 23. One-way valve; 24. Vent pipe; 25. Sealing cap. Detailed Implementation

[0023] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0024] According to an embodiment of the present invention, a portable gas expansion rock-breaking device is provided.

[0025] Example 1;

[0026] like Figure 1-5 As shown, the portable gas expansion rock-breaking device according to an embodiment of the present invention includes a PVC plastic pipe 1, a lower sealing cap 2 at the bottom end of the PVC plastic pipe 1, an upper sealing cap 3 at the top end of the PVC plastic pipe 1, a connecting pipe 4 at the top end of the upper sealing cap 3, an ignition lead 5 at the top end of the upper sealing cap 3 and on one side of the connecting pipe 4, a pressure relief valve 6 at the top end of the upper sealing cap 3 and on the side of the connecting pipe 4 away from the ignition lead 5, a partition 7 in the connecting pipe 4, a through hole 8 at the top end of the partition 7, a support plate 20 in the connecting pipe 4 and at the bottom end of the partition 7, a sealing plug 9 at the top end of the support plate 20 that matches the through hole 8, the sealing plug 9 being connected to the support plate 20 by a spring 10, hand-tightening bolts 11 symmetrically arranged and extending into the connecting pipe 4 on the outer wall of the connecting pipe 4, and a leak-proof component in the connecting pipe 4.

[0027] Example 2;

[0028] like Figure 1-5As shown, the assembly includes a PVC plastic pipe 1, a lower sealing cap 2 at the bottom of the PVC plastic pipe 1, an upper sealing cap 3 at the top of the PVC plastic pipe 1, a connecting pipe 4 at the top of the upper sealing cap 3, an ignition lead 5 at the top of the upper sealing cap 3 and on one side of the connecting pipe 4, a pressure relief valve 6 at the top of the upper sealing cap 3 and on the side of the connecting pipe 4 away from the ignition lead 5, a partition 7 inside the connecting pipe 4, a through hole 8 at the top of the partition 7, a support plate 20 inside the connecting pipe 4 and at the bottom of the partition 7, a sealing plug 9 at the top of the support plate 20 matching the through hole 8, the sealing plug 9 being connected to the support plate 20 via a spring 10, hand-tightening bolts 11 symmetrically arranged on the outer wall of the connecting pipe 4 extending into the connecting pipe 4, and a leak-proof assembly inside the connecting pipe 4. Both the lower sealing cap 2 and the upper sealing cap 3 are threadedly connected to the PVC plastic pipe 1. The connecting pipe 4 has threaded holes matching the hand-tightening bolts 11. When filling the PVC plastic pipe 1 with liquid oxygen, connect the connecting pipe 4 on the upper sealing cap 3 to the outlet of the external liquid oxygen supply equipment. Then tighten the hand-tightening bolt 11 to securely connect the connecting pipe 4 to the outlet of the external liquid oxygen supply equipment. When the outlet of the external liquid oxygen supply equipment emits oxygen, the liquid oxygen squeezes the sealing plug 9, and the sealing plug 9 squeezes the spring 10. The spring 10 is compressed and moves downward to disengage from the through hole 8, opening the through hole 8. Liquid oxygen enters the PVC plastic pipe 1 through the through hole 8. After the oxygen filling is completed, loosen the hand-tightening bolt 11 and pull the outlet of the external liquid oxygen supply equipment out of the connecting pipe 4. At this time, the spring 10 returns to its original position, causing the sealing plug 9 to seal the through hole 8. By setting up the connecting pipe, sealing plug, spring 1, and hand-tightening bolt, when the rock breaking device is needed, the PVC plastic pipe can be immediately connected to the liquid oxygen supply equipment for oxygen filling. The hand-tightening bolt can be used to fix the pipe to the liquid oxygen supply equipment, preventing it from falling off during the oxygen filling process.

[0029] Example 3;

[0030] like Figure 1-5As shown, the device includes a PVC plastic pipe 1, a lower sealing cap 2 at the bottom of the PVC plastic pipe 1, an upper sealing cap 3 at the top of the PVC plastic pipe 1, a connecting pipe 4 at the top of the upper sealing cap 3, an ignition lead 5 at the top of the upper sealing cap 3 and on one side of the connecting pipe 4, a pressure relief valve 6 at the top of the upper sealing cap 3 and on the side of the connecting pipe 4 away from the ignition lead 5, a partition 7 in the connecting pipe 4, a through hole 8 at the top of the partition 7, a support plate 20 in the connecting pipe 4 and at the bottom of the partition 7, a sealing plug 9 at the top of the support plate 20 that matches the through hole 8, the sealing plug 9 being connected to the support plate 20 by a spring 10, hand-tightening bolts 11 symmetrically arranged and extending into the connecting pipe 4 on the outer wall of the connecting pipe 4, and a leak-proof component in the connecting pipe 4. The leak-proof assembly includes an annular groove 12 formed on the inner wall of the connecting pipe 4, an annular airbag 13 disposed in the annular groove 12, an inflation box 14 disposed at the top of the upper sealing cap 3 and on one side of the connecting pipe 4, an inflation groove 15 disposed in the inflation box 14, a matching movable plug 16 disposed in the inflation groove 15, the bottom end of the movable plug 16 being connected to the inflation box 14 via a spring 17, an air inlet 18 disposed on one side of the inflation box 14 communicating with the inflation groove 15, an air supply pipe 19 disposed on one side of the top of the inflation box 14, the bottom end of the air supply pipe 19 extending into the inflation box 14 and communicating with the inflation groove 15, and the top end of the air supply pipe 19 extending into the annular groove 12 and communicating with the annular airbag 13. A pressure rod 21 is disposed at the top of the movable plug 16. The top end of the pressure rod 21 extends out of the inflation box 14 and is connected to a pressure block 22. A one-way valve 23 is provided at the top of the inflation box 14 and on the air supply pipe 19. The outer wall of the annular airbag 13 is provided with a deflation pipe 24 extending to the outside of the connecting pipe 4. The end of the deflation pipe 24 away from the annular airbag 13 is provided with a cap 25, and the cap 25 is threadedly connected to the deflation pipe 24. After the outlet of the external liquid oxygen supply equipment is inserted into the connecting pipe 4, the operator presses the pressure block 22, which moves the movable plug 16 downward through the pressure rod 21. The movable plug 16 compresses the spring 17 and forces air into the annular airbag 13 through the gas supply pipe 19. The operator repeatedly presses the pressure block 22 to inflate the annular airbag 13, causing it to expand and seal the gap between the connecting pipe 4 and the outlet of the external liquid oxygen supply equipment, preventing liquid oxygen leakage. After the oxygen filling is complete, the cover 25 is rotated to open the vent pipe 24 and release the gas from the annular airbag 13. By setting up the anti-leakage component, the connection between the connecting pipe and the outlet of the liquid oxygen supply equipment can be sealed during the oxygen filling process, preventing liquid oxygen from flowing out through the gap between the connecting pipe and the outlet of the liquid oxygen supply equipment, thus further improving its safety.

[0031] In practical applications, when filling the PVC plastic pipe 1 with liquid oxygen, connect the connecting pipe 4 on the upper sealing cap 3 to the outlet of the external liquid oxygen supply equipment. Then tighten the hand-tightening bolt 11 to securely connect the connecting pipe 4 to the outlet of the external liquid oxygen supply equipment. When oxygen is discharged from the outlet of the external liquid oxygen supply equipment, the liquid oxygen squeezes the sealing plug 9, which in turn squeezes the spring 10. The spring 10 is compressed and moves downward, disengaging from the through hole 8. The through hole 8 opens, and liquid oxygen enters the PVC plastic pipe 1 through the through hole 8. After filling with oxygen, loosen the hand-tightening bolt 11 and pull the outlet of the external liquid oxygen supply equipment out of the connecting pipe 4. At this time, the spring 10 returns to its original position, causing the sealing plug 9 to seal the through hole 8. By setting up the connecting pipe, sealing plug, spring 10, and hand-tightening bolt, the PVC plastic pipe can be immediately connected to the liquid oxygen supply equipment for filling with oxygen when the rock-breaking device is needed. The device is fixed to the liquid oxygen supply equipment by hand-tightening bolts and may detach during oxygen filling. After the outlet of the external liquid oxygen supply equipment is inserted into the connecting pipe 4, the operator presses the pressure block 22, which moves the movable plug 16 downward through the pressure rod 21. The movable plug 16 compresses the spring 17 and forces air into the annular airbag 13 through the gas supply pipe 19. The operator repeatedly presses the pressure block 22 to inflate the annular airbag 13, causing it to expand and seal the gap between the connecting pipe 4 and the outlet of the external liquid oxygen supply equipment, preventing liquid oxygen leakage. After oxygen filling is complete, the cover 25 is rotated to open the vent pipe 24 and release the gas from the annular airbag 13. By setting up the anti-leakage component, the connection between the connecting pipe and the outlet of the liquid oxygen supply equipment can be sealed during oxygen filling, preventing liquid oxygen from flowing out through the gap between the connecting pipe and the outlet of the liquid oxygen supply equipment, thus further improving its safety.

[0032] In summary, by utilizing the above-mentioned technical solution of this utility model, when the rock-breaking device is needed, the PVC plastic pipe can be immediately connected to the liquid oxygen supply equipment for oxygen filling by setting a connecting pipe, sealing plug, spring, and hand-tightening bolt. The hand-tightening bolt secures the pipe to the liquid oxygen supply equipment and prevents it from falling off during oxygen filling. By setting an anti-leakage component, the connection between the connecting pipe and the outlet of the liquid oxygen supply equipment can be sealed during oxygen filling, preventing liquid oxygen from leaking out through the gap between the connecting pipe and the outlet of the liquid oxygen supply equipment, thus further improving its safety.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A portable gas expansion rock-breaking device, characterized in that, Includes a PVC plastic pipe (1), the bottom of which is provided with a lower sealing cap (2), the top of which is provided with an upper sealing cap (3), the top of which is provided with a connecting pipe (4), the top of which is provided with an ignition lead (5) located on one side of the connecting pipe (4), the top of which is provided with a pressure relief valve (6) located on the side of the connecting pipe (4) away from the ignition lead (5), and the connecting pipe (4) is provided with a partition ( 7) The top of the partition (7) is provided with a through hole (8), and the connecting pipe (4) is provided with a support plate (20) located at the bottom of the partition (7). The top of the support plate (20) is provided with a sealing plug (9) that matches the through hole (8). The sealing plug (9) is connected to the support plate (20) by a spring (10). The outer wall of the connecting pipe (4) is provided with symmetrically arranged hand-tightening bolts (11) that extend into the connecting pipe (4). The connecting pipe (4) is provided with a leak-proof component.

2. The portable gas expansion rock-breaking device according to claim 1, characterized in that, Both the lower sealing cap (2) and the upper sealing cap (3) are threadedly connected to the PVC plastic pipe (1).

3. The portable gas expansion rock-breaking device according to claim 1, characterized in that, The connecting pipe (4) has a threaded hole that matches the hand-tightening bolt (11).

4. A portable gas expansion rock-breaking device according to claim 1, characterized in that, The leak-proof assembly includes an annular groove (12) on the inner wall of the connecting pipe (4), an annular airbag (13) in the annular groove (12), an inflation box (14) at the top of the upper sealing cover (3) and on one side of the connecting pipe (4), an inflation groove (15) in the inflation box (14), a matching movable plug (16) in the inflation groove (15), the bottom end of the movable plug (16) being connected to the inflation box (14) by a spring (17), an air inlet (18) communicating with the inflation groove (15) on one side of the inflation box (14), an air supply pipe (19) on one side of the top of the inflation box (14), the bottom end of the air supply pipe (19) extending into the inflation box (14) and communicating with the inflation groove (15), and the top end of the air supply pipe (19) extending into the annular groove (12) and communicating with the annular airbag (13).

5. A portable gas expansion rock-breaking device according to claim 4, characterized in that, The top of the movable plug (16) is provided with a pressure rod (21), and the top of the pressure rod (21) extends to the outside of the air box (14) and is connected to the pressure block (22).

6. A portable gas expansion rock-breaking device according to claim 4, characterized in that, A one-way valve (23) is provided at the top of the air filling box (14) and on the air supply pipe (19).

7. A portable gas expansion rock-breaking device according to claim 4, characterized in that, The outer wall of the annular airbag (13) is provided with a venting pipe (24) extending to the outside of the connecting pipe (4). The end of the venting pipe (24) away from the annular airbag (13) is provided with a cap (25), and the cap (25) is threadedly connected to the venting pipe (24).

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