Gas cutting device with fixed function

CN224787864UActive Publication Date: 2026-09-22SHEXIAN YUSHI ENGINEERING TECHNOLOGY CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202522183423.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-15
Publication Date
2026-09-22
Estimated Expiration
2035-10-15

AI Technical Summary

Technical Problem

[0003]公告号为CN219200216U的中国实用新型专利公开了一种二氧化碳爆破致裂管,此装置通过设置的封堵螺栓可以封堵排气孔,改变对不同方向的爆破强度,精准控制对不同方位的爆破力度,但在进行破拆时在岩石上打孔的孔径均大于致裂管的直径,当致裂管放进岩石后,致裂管大多数情况下是偏斜在孔内,此时会改变泄气孔的位置,影响对岩石的破拆效果

Benefits of technology

[0011]本实用新型设置的多组支撑板能够对制裂管的位置进行固定,当制裂管进入地面的孔内时不会发生偏移,避免对制裂管的破拆效果造成影响,且通过设置的按压架快速将支撑板进行释放,提高本实用新型的便捷性。

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224787864U_ABST
    Figure CN224787864U_ABST
Patent Text Reader

Abstract

The utility model discloses a gas breaking device with fixed function relates to gas breaking technical field, including the pipe of making fissure for containing oxygen liquid, the pipe of making fissure lower extreme is provided with the air release head for exhausting, the pipe of making fissure upper extreme is provided with the excitation pipe for gasification oxygen liquid, and the oxygen of gasification is discharged fast from the air release head and realizes breaking to rock, and a plurality of support plates are slidably arranged on the pipe of making fissure, and the support plate circumferential arrangement is on the outer surface, and the support plate is combined with the hole inside on the ground when sliding on the pipe of making fissure, and the pipe of making fissure is limited, avoids the pipe of making fissure dumping before breaking and influences breaking effect.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of gas demolition technology, and in particular to a gas demolition device with a fixed function. Background Technology

[0002] Oxygen demolition technology is a cold blasting technique that uses the instantaneous vaporization of liquid oxygen in a high-pressure pipe to generate enormous expansion force, thereby safely and precisely cracking hard objects such as rocks and concrete. The process does not rely on explosives or combustion, but rather rapidly converts liquid oxygen into a gaseous state, causing its volume to expand hundreds of times, uniformly cracking the target structure from the inside. It features no open flame, no vibration, no flying rocks, low noise, and is environmentally friendly, and is widely used in mining, concrete building demolition, and emergency rescue.

[0003] Chinese utility model patent CN219200216U discloses a carbon dioxide blasting fracturing tube. This device can seal the vent hole by setting a sealing bolt, change the blasting intensity in different directions, and precisely control the blasting force in different directions. However, when performing demolition, the diameter of the hole drilled in the rock is larger than the diameter of the fracturing tube. When the fracturing tube is put into the rock, it is mostly deviated in the hole. At this time, it will change the position of the vent hole and affect the demolition effect on the rock. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model discloses a gas breaking device with a fixed function.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a gas breaking device with a fixing function, including a breaking tube, a limiting ring and multiple sets of support plates slidably arranged on the breaking tube, a spring 1 between the support plate and the breaking tube, a limiting hole 1 on the support plate, a limiting hole 2 on the breaking tube, the limiting hole 1 and the limiting hole 2 being aligned, multiple sets of limiting posts and grooves arranged on the limiting ring, the limiting posts being inserted into the limiting hole 1 and the limiting hole 2 to fix the breaking tube and the support plate, a spring 2 being arranged between the breaking tube and the limiting ring, and a pressing frame, a gripping rod arranged at the upper end of the pressing frame, and multiple sets of pressing rods arranged at the lower end of the pressing frame, the pressing rods being inserted into the grooves.

[0006] Furthermore, the fracturing tube and the activation tube are connected by threads, and the venting head is connected to the fracturing tube by threads.

[0007] Furthermore, the vent head is provided with multiple sets of vent holes.

[0008] Furthermore, a pressure regulating plate is provided between the crack-breaking tube and the venting head.

[0009] Furthermore, a wiring connector is provided at the upper end of the excitation tube, and the wiring connector is connected to the power supply via a wire.

[0010] Furthermore, a steel wire connector is provided at the upper end of the excitation tube, which is connected to a steel wire to facilitate the placement and removal of the fracturing tube.

[0011] The multiple support plates provided by this invention can fix the position of the cracking tube, preventing it from shifting when it enters the hole in the ground, thus avoiding any impact on the cracking effect. Furthermore, the support plates can be quickly released by the provided pressing frame, improving the convenience of this invention. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a front view of the overall structure of this utility model.

[0014] Figure 3 for Figure 2 Cross-sectional view of the structure along the AA direction.

[0015] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0016] Figure 5 This is a schematic diagram of the limiting ring structure of this utility model.

[0017] Figure 6 This is a schematic diagram of the pressing frame structure of this utility model.

[0018] Figure 7 This is a schematic diagram of the working state of this utility model.

[0019] Figure reference numerals: 1-Crack-inducing tube; 2-Vent head; 3-Vent hole; 4-Activation tube; 5-Line connector; 6-Steel wire connector; 7-Limiting ring; 8-Support plate; 9-Pressing frame; 10-Pressing rod; 11-Holding rod; 12-Groove; 13-Spring 1; 14-Limiting post; 15-Spring 2; 16-Ground; 17-Fixing plate. Detailed Implementation

[0020] refer to Figures 1 to 6The gas demolition device with a fixed function shown includes a fracturing tube 1, an excitation tube 4 at the upper end of the fracturing tube 1 connected to a power source, and a venting head 2 at the lower end of the fracturing tube 1 with multiple venting holes 3. The fracturing tube 1 is used to hold liquefied oxygen, the excitation tube 4 vaporizes the oxygen, and the vaporized oxygen is discharged through the venting holes 3 to complete the demolition. Multiple support plates 8 are slidably mounted on the fracturing tube 1, and the support plates 8 are attached to the inner wall of the hole in the ground 16 to fix the fracturing tube 1 and prevent the position of the fracturing tube 1 from shifting during operation, which would affect the demolition effect.

[0021] This utility model includes a fracturing tube 1, with a venting head 2 at the lower end of the fracturing tube 1. The venting head 2 is connected to the fracturing tube 1 by a thread, and the venting head 2 is provided with multiple sets of venting holes 3. The fracturing tube 1 communicates with the venting head 2. A pressure plate 17 is provided at the connection position between the fracturing tube 1 and the connection. In use, liquid oxygen is injected into the fracturing tube 1. An excitation tube 4 is provided at the upper end of the fracturing tube 1. The excitation tube 4 is connected to the fracturing tube 1 by a thread. The excitation tube 4 vaporizes the liquid oxygen. The vaporized oxygen breaks through the pressure plate 17 and enters the venting head 2, and is discharged through the venting holes 3, thus completing the fracturing.

[0022] The upper end of the excitation tube 4 is provided with a line connector 5, which is connected to the power supply via an electric wire. When the line connector 5 is activated, it heats the liquefied oxygen to achieve vaporization. The excitation tube 4 is also provided with a steel wire connector 6, which is connected to a steel wire. The cracking tube 1 is placed and retrieved by pulling the steel wire.

[0023] Multiple sets of support plates 8 are slidably arranged on the side of the fracturing tube 1. A spring 13 is arranged between the support plate 8 and the fracturing tube 1. Multiple sets of limiting holes 1 are arranged on the support plate 8, and multiple sets of limiting holes 2 are arranged on the fracturing tube 1. When the limiting hole 1 and the limiting hole 2 are aligned, the spring 13 is compressed. When the support plate 8 slides on the fracturing tube 1, it fits against the inner wall of the hole on the ground 16, thus fixing the fracturing tube 1.

[0024] A limiting ring 7 is slidably installed on the fracturing tube 1. A spring 15 is installed between the limiting ring 7 and the fracturing tube 1. The upper end of the limiting ring 7 is provided with multiple sets of grooves 12, and the lower end of the limiting ring 7 is provided with multiple sets of limiting posts 14. When the limiting hole 1 and the limiting hole 2 are aligned, the limiting post 14 is inserted into the limiting hole 1 and the limiting hole 2. At this time, the fracturing tube 1 and the support plate 8 are fixed. When the limiting post 14 is pulled out from the limiting hole 1 and the limiting hole 2, the support plate 8 is reset by the deformation restoring force of the spring 13.

[0025] refer to Figure 6 The upper end of the presser 9 shown is provided with a handle 11, and the lower end of the presser 9 is provided with multiple sets of press rods 10. The press rods 10 are aligned with the grooves 12. The user presses the limiting ring 7 by holding the handle 11 and using the presser 9 and the press rods 10.

[0026] During operation, first fill the fracturing tube 1 with liquefied oxygen and install the venting head 2 and the activation tube 4. In the initial state, limit hole one and limit hole two are aligned and limit post 14 is inserted into limit hole one and limit hole two. Use an electric wire to connect the line connector 5 to the power supply, install the wire rope on the wire connector 6, and drill a hole at the breaking position of the ground 16. The diameter of the hole is larger than the diameter of the support plate 8. After drilling, place the fracturing tube 1 into the hole of the ground 16.

[0027] When the vent head 2 contacts the bottom of the hole, the user holds the handle 11 and uses the pressing frame 9, and rotates the pressing frame 9 to make the pressing frame 9 drive the pressing rod 10 to rotate, aligning the pressing rod 10 with the groove 12 on the limiting ring 7, and presses the handle 11. The handle 11 drives the pressing rod 10 to press the groove 12. When the groove 12 is pressed, the limiting ring 7 slides downward on the crack-breaking tube 1, at which time the second spring 15 is compressed.

[0028] The limiting ring 7 drives multiple sets of limiting posts 14 to move downwards. The limiting posts 14 are pulled out from the limiting hole one and the limiting hole two. The limiting posts 14 release the fixation between the fracturing tube 1 and the support plate 8. The multiple sets of support plates 8 are reset by the deformation restoring force of the spring 13. The support plates 8 are attached to the inner wall of the hole on the ground 16. The multiple sets of support plates 8 complete the fixation of the fracturing tube 1, preventing the fracturing tube 1 from shifting within the ground 16.

[0029] Then, the excitation tube 4 is activated, which heats the liquid oxygen. When the oxygen vaporizes, it breaks the pressure plate 17 and enters the vent head 2, and is quickly ejected through the vent hole 3, thus completing the demolition of the ground 16.

Claims

1. A gas-breaking device with a fixed function, comprising a rupture tube (1), characterized in that: A limiting ring (7) and multiple sets of support plates (8) are slidably provided on the fracturing tube (1). A spring (13) is provided between the support plate (8) and the fracturing tube (1). A limiting hole (1) is provided on the support plate (8). A limiting hole (2) is provided on the fracturing tube (1). The limiting hole (1) and the limiting hole (2) are aligned. Multiple sets of limiting posts (14) and grooves (12) are provided on the limiting ring (7). The limiting posts (14) are inserted into the limiting holes (1) and the limiting holes (2) to fix the fracturing tube (1) and the support plate (8). A spring (15) is provided between the fracturing tube (1) and the limiting ring (7). The device also includes a pressing frame (9). A handle (11) is provided at the upper end of the pressing frame (9). Multiple pressing rods (10) are provided at the lower end of the pressing frame (9). The pressing rods (10) are inserted into the grooves (12). A venting head (2) is provided at the lower end of the fracturing tube (1).

2. The gas breaking device with a fixing function according to claim 1, characterized in that: The fracturing tube (1) and the activation tube (4) are connected by threads, and the venting head (2) is connected to the fracturing tube (1) by threads.

3. A gas demolition device with a fixing function according to claim 2, characterized in that: The vent head (2) is provided with multiple sets of vent holes (3).

4. A gas breaking device with a fixing function according to claim 2, characterized in that: A pressure plate (17) is provided between the cracking tube (1) and the venting head (2).

5. A gas breaking device with a fixing function according to claim 2, characterized in that: The upper end of the excitation tube (4) is provided with a line connector (5), which is connected to the power supply through a wire.

6. A gas breaking device with a fixing function according to claim 2, characterized in that: The upper end of the excitation tube (4) is provided with a wire connector (6), which is connected to the wire to facilitate the placement and removal of the cracking tube (1).

Citation Information

Patent Citations

  • Carbon dioxide blasting fracturing pipe

    CN219200216U