Pulling type gas spacer

Abstract

The application discloses a lifting type gas spacer, which comprises a gas cylinder arranged in a separation bag, the gas cylinder is connected with a shell bin through a mounting convex ring, a linkage rod rotating in the shell bin is matched with symmetrical limiting components, the limiting components are connected with a control component through a hose, the control component is sleeved on the gas cylinder and connected with a pressing valve nozzle; the limiting components comprise a gas bin, a sliding plate and an extension guide table, and the control component comprises an adjusting vertical bin, a sliding ring and a compression spring. In working, a rope lifts the linkage rod to rotate, the control component is pressed to press the valve nozzle to release gas, and the separation bag is expanded to form a spacing layer; the limiting components lock the linkage rod to prevent reverse rotation, the gas bin pushes the sliding plate to be unlocked after the gas pressure reaches a standard, and the control component is rebounded to close the gas cylinder. The self-adaptive inflation is realized, interruption or excess is avoided, the safety and stability of mine operation are improved, and the blasting efficiency is optimized.

Description

Technical Field

[0001] This application pertains to the field of mining and specifically relates to a pull-up gas separator. Background Technology

[0002] In the mining industry, to improve blasting efficiency, reduce safety risks, and optimize explosive energy distribution, pre-set spacer layers are needed within the mine shaft to precisely control the explosive filling position. Gas spacers, as the core equipment for achieving this function, form a physical spacer structure by filling a flexible spacer bag with high-pressure gas, causing it to expand and engage with the inner wall of the mine shaft. They have gradually replaced traditional mechanical spacer methods. However, existing gas spacers still have the following technical shortcomings in practical applications: Some mechanically triggered spacers rely on spring reset or a single locking structure. During the deflation process, friction from the mine walls and pre-blasting vibrations can cause the triggering component to rotate, leading to valve rebound and closure, interruption of inflation, insufficient expansion of the spacer bag, and inadequate spacer layer strength. This increases the safety hazards of flying debris and uncontrolled shock waves during blasting. Furthermore, while preset mechanical limits (such as fixed-stroke push rods) are used to control the inflation volume during inflation, variations in mine cross-sectional dimensions and rock wall hardness make it difficult to adapt a fixed inflation volume to different geological conditions. This results in fluctuations in spacer layer stability, uneven distribution of blasting energy, and affects the accuracy of ore block size control. Utility Model Content

[0003] This application provides a pull-up gas spacer, which uses a control component and a limiting component to form a linkage limiting structure for the linkage rod, in order to solve problems such as insufficient strength of the spacer layer caused by fixed inflation volume and unstable triggering.

[0004] To achieve the above objectives, this application provides a pull-up gas spacer, including a gas cylinder placed within an isolation zone. The gas cylinder is provided with a connecting chamber via an mounting ring. A linkage rod is rotatably provided within the connecting chamber via a rotating shaft. Limiting components are symmetrically arranged on the inner wall of the connecting chamber about the linkage rod as an axis of symmetry. The limiting components are connected to a control component via a hose. The control component is slidably fitted onto the gas cylinder and connected to a press valve. The limiting component includes a housing fixedly mounted on the inner wall of the connecting chamber. The housing is divided into a gas chamber and a slide chamber by a partition plate. A sliding plate is slidably and sealed inside the gas chamber. A U-shaped connecting rod is fixedly mounted on the sliding plate. A telescopic guide is mounted on the end of the U-shaped connecting rod near the slide chamber. The telescopic guide is slidably mounted inside the slide chamber via a slide rail. The end of the gas chamber near the gas cylinder is connected to the hose.

[0005] In one embodiment, a locking rod is fixedly provided on the linkage rod.

[0006] In one embodiment, the control component includes a valve cover that is slidably sealed on the gas cylinder, an adjusting vertical chamber that is fixedly disposed through the axis of the valve cover, a slip ring that is slidably sealed inside the adjusting vertical chamber, a compression spring that is disposed between the slip ring and the top of the adjusting vertical chamber, the top of the adjusting vertical chamber that is connected to the hose, a top ring that is disposed at the bottom of the adjusting vertical chamber that is connected to the push valve nozzle, and an exhaust port that is disposed through the top of the valve cover.

[0007] In one embodiment, a plurality of vent holes are evenly provided on the side wall of the adjusting vertical chamber near the top ring, and the vent holes are located below the slip ring.

[0008] In one embodiment, a limit rod is provided at one end of the linkage rod near the locking rod, and a limit boss is provided at the other end.

[0009] In one embodiment, the linkage rod has a connecting slot at one end near the limiting boss.

[0010] In one embodiment, both the sliding contact surfaces of the slide plate and the slip ring are provided with sealing rubber rings.

[0011] Compared with the prior art, the beneficial effects of this application are: By pulling the linkage rod around the pivot via a rope, the control component is squeezed to press the gas cylinder valve, releasing gas and causing the isolation bag to inflate and form a mine cavity partition. Simultaneously, the locking rod of the limiting component works with the telescopic guide to achieve one-way locking after the linkage rod is triggered, preventing interruption of rotation and gas release. Once the isolation bag inflates to the preset pressure, the gas pressure inside the chamber pushes the sliding plate, unlocking the telescopic guide. The control component then rebounds and closes the gas cylinder, completing the adaptive inflation control. This ensures that the gas pressure inside the isolation bag remains stable within a safe range, preventing gas leakage or over-inflation due to changes in the external environment, thereby improving the safety and stability of mine operations. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 A schematic diagram of the pull-out gas separator provided in this application; Figure 2 Provided for this application Figure 1 Enlarged view of point A in the middle; Figure 3A cross-sectional schematic diagram of the control components of the pull-out gas separator provided in this application; Figure 4 A schematic diagram of the internal components of the limiting assembly of the pull-up gas spacer provided in this application; Figure 5 Provided for this application Figure 3 Enlarged view of point B in the middle; Figure 6 A schematic diagram of the linkage rod for the pull-up gas separator provided in this application; Figure 7 A schematic diagram of the top of the gas cylinder for the pull-out gas spacer provided in this application; Figure 8 A schematic diagram showing the positions of the limiting components and locking rods of the pull-up gas separator provided in this application.

[0014] Explanation of reference numerals in the attached diagram: 1. Gas cylinder; 2. Connecting chamber; 3. Linkage rod; 4. Connecting slot; 5. Limiting boss; 6. Limiting rod; 7. Control component; 71. Valve cover; 72. Adjusting vertical chamber; 73. Slip ring; 74. Compression spring; 75. Vent hole; 76. Exhaust hole; 77. Top ring; 8. Hoses; 9. Limiting component; 91. Housing; 92. Slide chamber; 93. Partition plate; 94. Slide plate; 95. Gas chamber; 96. Slide rail; 97. Telescopic guide; 98. U-shaped connecting rod; 10. Locking rod; 11. Rotating shaft; 12. Press valve nozzle; 13. Mounting protrusion ring; 14. Isolation bag. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0016] See Figures 1 to 8 The pull-out gas separator provided in this application includes a gas cylinder 1 placed inside an isolation bag 14. The gas cylinder 1 is provided with a connecting shell chamber 2 via an mounting protrusion ring 13. A linkage rod 3 is rotatably provided inside the connecting shell chamber 2 via a rotating shaft 11. Limiting components 9 are symmetrically arranged on the inner wall of the connecting shell chamber 2 with the linkage rod 3 as the axis of symmetry. The limiting components 9 are connected to a control component 7 via a hose 8. The control component 7 is slidably sleeved on the gas cylinder 1 and connected to a pressing valve nozzle 12.

[0017] When using this device, first pass the rope through the pre-drilled hole on the isolation bag 14 and fix one end to the linkage rod 3. After securing the rope, drop the entire device into the mine. Under the influence of gravity, the entire device will fall automatically. When the rope is taut and under tension, the linkage rod 3 will deflect around the pivot 11 under the tension. During the deflection, the end of the linkage rod 3 will squeeze the control component 7. After being squeezed, the control component 7 moves downward, thereby pressing down the valve nozzle 12, opening the gas outlet channel of the gas cylinder 1, and releasing the gas from the gas cylinder 1 into the isolation bag 14. After being inflated, the isolation bag 14 expands and becomes stuck in the mine, thus forming a spacer layer in the mine. This facilitates the placement of explosives at designated locations in the mine, improving blasting efficiency and safety.

[0018] During the process of releasing air by the linkage rod 3 pressing the control component 7, the limiting component 9 will limit the position of the linkage rod 3 to prevent the linkage rod 3 from rotating during the air release process, which would prevent the control component 7 from triggering the pressing valve 12 normally, thus ensuring the stability of the air release process.

[0019] It should be noted that the reserved holes on the isolation bag 14 allow ropes to be inserted while ensuring the overall sealing of the isolation bag 14, preventing gas leakage during inflation from affecting the expansion effect of the isolation bag 14.

[0020] The limiting component 9 includes a housing 91 fixedly mounted on the inner wall of the connecting chamber 2. The housing 91 is divided into a gas chamber 95 and a sliding chamber 92 by a partition plate 93. A sliding plate 94 is slidably and sealed inside the gas chamber 95. A U-shaped connecting rod 98 is fixedly mounted on the sliding plate 94. A telescopic guide 97 is mounted on one end of the U-shaped connecting rod 98 near the sliding chamber 92. The telescopic guide 97 is slidably mounted inside the sliding chamber 92 via a slide rail 96. The end of the gas chamber 95 near the gas cylinder 1 is connected to the hose 8. A locking rod 10 is fixedly mounted on the linkage rod 3.

[0021] During the deflection of the linkage rod 3, the locking rod 10 moves accordingly. When the linkage rod 3 abuts against the compression control component 7, the locking rod 10 simultaneously abuts against the telescopic guide 97. As the linkage rod 3 continues to compress the control component 7, the locking rod 10 pushes the telescopic guide 97 inward. When the linkage rod 3 fully presses the control component 7 into place, the locking rod 10 passes over the telescopic guide 97. That is, the telescopic guide 97 automatically pops out after the locking rod 10 passes over, locking the locking rod 10 in the area between the telescopic guide 97 and the air chamber 95, thereby restricting the return movement of the locking rod 10, keeping the linkage rod 3 in the triggered position, and ensuring that the control component 7 continuously presses the pressing valve 12 until the expansion and fixation of the isolation bag 14 is completed.

[0022] As gas cylinder 1 continues to release gas, the isolation bag 14 gradually expands. Once the isolation bag 14 expands to form a stable isolation layer within the mine, the continued release of gas from gas cylinder 1 causes an abnormal increase in the gas pressure inside the isolation bag 14. Under these circumstances, the increasing gas pressure is transmitted to the hose 8 via the control component 7, and then to the gas chamber 95 via the hose 8. The slide plate 94 inside the gas chamber 95 slides away from gas cylinder 1 under the action of gas pressure. During the sliding process, the slide plate 94 drives the U-shaped connecting rod 98 to move synchronously. The upward sliding of the U-shaped connecting rod 98 drives the telescopic guide 9 7 slides upward along the slide rail 96, thereby releasing the restriction on the locking position of the locking rod 10, that is, releasing the restriction on the position of the linkage rod 3. After the linkage rod 3 loses its limit, it will not continue to maintain the pressing state of the control component 7, causing the control component 7 to rebound upward under the push of the air pressure in the gas cylinder 1 cavity. At this time, the control component 7 gradually disengages from the pressing valve nozzle 12, and the gas outlet channel of the gas cylinder 1 is cut off. The air pressure inside the isolation bag 14 then stabilizes within the safety threshold, which not only ensures the structural stability of the isolation bag 14, but also avoids safety hazards caused by continuous inflation.

[0023] It should be noted that when the isolation bag 14 is fully inflated and in a stable isolation state, the expansion of the isolation belt 14 causes the rope to slacken from a taut state, and at this time the rope no longer applies tension to the linkage rod 3. After the linkage rod 3 loses its limit, it can rotate upward and reset under the action of the elastic force of the control component 3, releasing the continuous pressing state on the control component 7, causing the control component 7 to gradually move away from the pressing valve 12, thereby cutting off the gas outlet channel of the gas cylinder 1, preventing the internal gas pressure of the isolation bag 14 from continuing to rise, and ensuring that it is in a safe and stable working state.

[0024] Optionally, the control component 7 includes a valve cover 71 that is slidably sealed on the gas cylinder 1. An adjusting vertical chamber 72 is fixedly disposed through the axis of the valve cover 71. A slip ring 73 is slidably sealed inside the adjusting vertical chamber 72. A compression spring 74 is disposed between the slip ring 73 and the top of the adjusting vertical chamber 72. The top of the adjusting vertical chamber 72 is connected to the hose 8. A top ring 77 is disposed at the bottom of the adjusting vertical chamber 72. The top ring 77 is connected to the push valve nozzle 12. An exhaust hole 76 is disposed through the top of the valve cover 71.

[0025] In this embodiment, under the pressing action of the linkage rod 3, the valve cover 71 moves downward along the axis of the gas cylinder 1, and the top ring 77 presses down on the pressing valve nozzle 12 simultaneously, thereby opening the gas outlet channel of the gas cylinder 1, so that the gas is discharged from the pressing valve nozzle 12 and flows out of the valve cover 71 through the exhaust hole 76 and enters the isolation bag 14 to start inflation and expansion.

[0026] After the isolation bag 14 effectively isolates the mine shaft, the continuous pressurization inside the gas cylinder 1 causes the gas pressure inside the isolation bag 14 to gradually increase. At this time, the increased gas pressure is gradually transmitted to the slip ring 73 in the regulating chamber 72. Under the action of gas pressure, the slip ring 73 overcomes the elastic force of the compression spring 74 and slides upward. The upward sliding of the slip ring 73 causes the gas inside the regulating chamber 72 to be transmitted to the gas chamber 95 through the hose 8. After the gas flows into the gas chamber 95, it pushes the slide plate 94 to move away from the gas cylinder 1. During the movement of the slide plate 94, the U-shaped connecting rod 98 slides upward, thereby driving the telescopic guide 97 to rise along the slide rail 96. This series of linkages ultimately causes the locking rod 10 to disengage from the original locking position and release the limit on the linkage rod 3. As the linkage rod 3 loses its constraint, it will no longer press the control component 7. Therefore, the control component 7 begins to rebound under the action of the gas pressure inside the gas cylinder 1. That is, the top ring 77 gradually moves away from the gas cylinder 1, the pressing valve 12 gradually returns to its original position, the gas outlet channel of the gas cylinder 1 is cut off, and the gas pressure inside the isolation bag 14 stabilizes within the safe threshold range, effectively avoiding the risk of structural damage or gas leakage caused by excessive gas pressure.

[0027] Optionally, the adjusting vertical chamber 72 has a plurality of vent holes 75 evenly distributed on the side wall near the top ring 77, and the vent holes 75 are located below the slip ring 73. The gas in the gas cylinder 1 is discharged from the pressing valve nozzle 12 into the adjusting vertical chamber 12, then through the plurality of vent holes 75 evenly distributed in the adjusting vertical chamber 12 into the valve cover 71, and then flows out through the exhaust hole 76 into the gas bag 14. By evenly distributing a plurality of vent holes 75, the uniformity of gas flow is improved, making the pressure-bearing area of ​​the slip ring 73 more balanced.

[0028] Optionally, a limiting rod 6 is provided at one end of the linkage rod 3 near the locking rod 10, and a limiting boss 5 is provided at the other end. The limiting rod 6 and the limiting boss 5 are used to prevent the linkage rod 3 from rotating accidentally due to vibration during transportation, thereby avoiding structural damage or safety hazards caused by accidental inflation of the isolation bag 14 when it is not in operation. In practical applications, the limiting rod 6 and the linkage rod 3 are designed as a fracture structure. When subjected to a large external force, the limiting rod 6 breaks to release the linkage rod 3, thereby ensuring the normal start-up of the device.

[0029] It should be noted that the limiting boss 5 is used to limit the counterclockwise rotation of the linkage rod 3, preventing the locking rod 10 from malfunctioning due to unexpected rotation caused by external forces during transportation or when not in operation. Simultaneously, the limiting rod 6 is used to limit the clockwise rotation of the linkage rod 3. Together, they achieve bidirectional limiting of the linkage rod 3 during transportation, ensuring it remains stable and does not deviate, thereby effectively guaranteeing the safety and structural integrity of the entire device when not in operation.

[0030] Optionally, the linkage rod 3 has a connecting slot 4 at one end near the limiting boss 5. The connecting slot 4 facilitates the fixing and operation of the rope by the operator, improving work efficiency.

[0031] Optionally, both the sliding contact surfaces of the slide plate 94 and the slip ring 73 are provided with sealing rings. The sealing rings ensure airtightness during sliding and prevent gas leakage from affecting the overall performance of the device.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A pull-out gas spacer, comprising a gas cylinder (1) placed inside a separation bag (14), characterized in that: The gas cylinder (1) is provided with a connecting shell chamber (2) by means of a mounting convex ring (13). A linkage rod (3) is rotatably provided in the connecting shell chamber (2) by means of a rotating shaft (11). Limiting components (9) are symmetrically provided on the inner wall of the connecting shell chamber (2) with the linkage rod (3) as the axis of symmetry. The limiting components (9) are connected to the control component (7) by means of a hose (8). The control component (7) is slidably sleeved on the gas cylinder (1) and connected to the pressing valve (12). The limiting component (9) includes a housing (91) fixedly installed on the inner wall of the connecting housing (2). The housing (91) is divided into a gas chamber (95) and a slide chamber (92) by a partition plate (93). A sliding plate (94) is slidably sealed in the gas chamber (95). A U-shaped connecting rod (98) is fixedly installed on the sliding plate (94). A telescopic guide (97) is provided at one end of the U-shaped connecting rod (98) near the slide chamber (92). The telescopic guide (97) is slidably installed in the slide chamber (92) via a slide rail (96). The end of the gas chamber (95) near the gas cylinder (1) is connected to the hose (8).

2. The pull-out gas spacer according to claim 1, characterized in that: A locking rod (10) is fixedly installed on the linkage rod (3).

3. The pull-out gas spacer according to claim 1, characterized in that: The control component (7) includes a valve cover (71) that is slidably sealed on the gas cylinder (1). An adjusting vertical chamber (72) is fixedly disposed through the axis of the valve cover (71). A slip ring (73) is slidably sealed inside the adjusting vertical chamber (72). A compression spring (74) is disposed between the slip ring (73) and the top of the adjusting vertical chamber (72). The top of the adjusting vertical chamber (72) is connected to the hose (8). A top ring (77) is disposed at the bottom of the adjusting vertical chamber (72). The top ring (77) is connected to the pressing valve (12). An exhaust hole (76) is disposed through the top of the valve cover (71).

4. The pull-out gas spacer according to claim 3, characterized in that: The adjusting vertical chamber (72) has a plurality of ventilation holes (75) evenly distributed on the side wall near the top ring (77), and the ventilation holes (75) are located below the slip ring (73).

5. The pull-out gas spacer according to claim 2, characterized in that: The linkage rod (3) is provided with a limit rod (6) at one end near the locking rod (10) and a limit boss (5) at the other end.

6. The pull-out gas spacer according to claim 5, characterized in that: The linkage rod (3) has a connecting slot (4) at one end near the limiting boss (5).

7. The pull-out gas spacer according to any one of claims 1-6, characterized in that: Both the sliding contact surfaces of the slide plate (94) and the slip ring (73) are provided with sealing rubber rings.

Images