Airbag delivery device

Abstract

The utility model provides a kind of air bag conveying equipment, including fixed air bag, with air inlet and first communicating part;Air inlet connects gas supply unit;First communicating part exhausts after fixed air bag inflation;Telescopic air bag, one end has the connecting port connected with first communicating part;The other end has second communicating part, and second communicating part exhausts after telescopic air bag inflation;Positioning air bag, with containing cavity;Positioning air bag also has the disengagement portion of detachable connection with second communicating part;After carrying explosive and with telescopic air bag push to blasting position, inflation and abut in blasting position.The air bag conveying equipment fixed air bag provided by the utility model forms stable support at inlet, ensure that equipment will not shift in subsequent push process;Telescopic air bag can be flexibly adjusted push distance according to the length of plug, adapt to the blasting demand of different depth;Positioning air bag can carry explosive to reach predetermined position after inflation positioning, then retract fixed air bag and telescopic air bag.

Description

Technical Field

[0001] This utility model belongs to the field of fixed-point blasting technology, specifically relating to an airbag delivery device. Background Technology

[0002] Precision blasting (also known as controlled blasting) is a blasting technique that uses precise design and operation to concentrate the energy of explosives on a specific target to achieve directional breaking, demolition, or excavation while minimizing the impact on the surrounding environment. It is widely used in building demolition, mining, tunnel construction, and other fields.

[0003] In existing technologies, during blasting operations to block coal bunkers, explosives need to be transported to a calculated location for detonation. This is typically done using a robotic arm that extends into the blockage to deliver the explosives. However, ordinary robotic arms are complex in structure, expensive, and susceptible to damage in the high-risk, high-impact blasting environment, resulting in high protection and maintenance costs. To ensure their normal operation under blasting impact, expensive protective and buffering devices are required, leading to high equipment costs and poor adaptability. Utility Model Content

[0004] This utility model provides an airbag delivery device, which aims to solve the problem of poor adaptability caused by the high cost of existing fixed-point blasting detonator delivery methods.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide an airbag delivery device, comprising:

[0006] A fixed airbag is provided at the outlet of the blocked location. The fixed airbag has an air inlet and a first connecting portion. The air inlet is connected to a gas supply unit. The first connecting portion is used to exhaust gas after the fixed airbag inflates and the gas is discharged at the outlet of the blocked location.

[0007] The telescopic airbag has a connection port at one end connected to the first connecting portion; and a second connecting portion at the other end, which is used to release air after the telescopic airbag inflates and extends.

[0008] The positioning airbag has a receiving cavity for placing explosives; the positioning airbag also has a detachable part that is detachably connected to the second communicating part; the positioning airbag is used to carry explosives and, after being pushed to the blasting position by the telescopic airbag, inflates and abuts against the side wall of the blasting position.

[0009] In one possible implementation, the fixation airbag includes:

[0010] A disc-shaped airbag is positioned at the outlet of the obstruction location;

[0011] A connecting valve is provided on the disc-shaped air bag and is connected to the disc-shaped air bag and the gas supply unit;

[0012] An electric air valve is disposed on the disc-shaped airbag and communicates with the disc-shaped airbag and the telescopic airbag. The electric air valve is used to control the connection and closure of the disc-shaped airbag and the telescopic airbag. The electric air valve is the first communication part.

[0013] In one possible implementation, the telescopic airbag includes:

[0014] The folded air column has multiple folded sections, one end of which is connected to the electric air valve, and the other end extends toward the blockage position.

[0015] A pressure valve is disposed on the extended end of the folded air column and moves toward the blockage position as the extended end of the folded air column extends. One end of the pressure valve is connected to the folded air column, and the other end of the pressure valve extends along the extension direction of the folded air column. The pressure valve is the second connecting part.

[0016] The size of the connecting end of the folded air column is larger than the size of the protruding end of the folded air column.

[0017] In one possible implementation, the pressure valve is a pressure-triggered valve.

[0018] In one possible implementation, the positioning airbag has a first annular airbag segment and a second annular airbag segment. The first annular airbag segment is connected to the pressure valve and is sleeved on the extended end of the pressure valve. The second annular airbag segment is connected to the first annular airbag segment and integrally connected to it. The second annular airbag segment has an annular cavity with an open top, which is the receiving cavity. The first annular airbag segment is used to detach from the pressure valve when inflated, and is the detachment part.

[0019] The positioning airbag is connected to the pressure valve by a one-way valve, which is used to prevent the gas inside the positioning airbag from being released after it is detached.

[0020] In one possible implementation, the positioning airbag is further provided with a limiting cover, which covers the opening of the annular cavity.

[0021] In this implementation, compared with the prior art, the fixed airbag forms a stable support at the entrance, ensuring that the entire device will not shift during the subsequent pushing process; the telescopic airbag can flexibly adjust the pushing distance according to the length of the blockage, adapting to the blasting requirements at different depths; the positioning airbag can carry the explosive to the predetermined position and then expand to position it, ensuring the accuracy of the blasting point, and then the fixed airbag and telescopic airbag are retracted. The device has low cost and good adaptability. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the airbag delivery device provided in an embodiment of the present utility model;

[0023] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0024] Explanation of reference numerals in the attached figures:

[0025] 10. Fixed airbag; 11. Disc-shaped airbag; 12. Connecting air valve; 13. Electric air valve; 20. Gas supply unit; 30. Telescopic airbag; 31. Folding air column; 32. Pressure air valve; 40. Positioning airbag; 41. First annular airbag section; 42. Second annular airbag section; 43. Limiting cover. Detailed Implementation

[0026] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] It should be noted that the terms "length", "width", "height", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", and "tail" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part of a structure. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or the internal communication between two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Additionally, "multiple" and "several" mean two or more, unless otherwise explicitly specified.

[0030] Please refer to the following: Figure 1 and Figure 2 The airbag delivery device provided by this utility model will now be described. The airbag delivery device includes a fixed airbag 10, a telescopic airbag 30, and a positioning airbag 40. The fixed airbag 10 is disposed at the outlet of the blocked position and has an air inlet and a first connecting portion. The air inlet is connected to a gas supply unit 20. The first connecting portion is used to exhaust gas after the fixed airbag 10 expands and reaches the outlet of the blocked position. The telescopic airbag 30 has a connection port at one end connected to the first connecting portion. The other end has a second connecting portion, which is used to exhaust gas after the telescopic airbag 30 expands and extends. The positioning airbag 40 has a receiving cavity for placing explosives. The positioning airbag 40 also has a detachable portion detachably connected to the second connecting portion. The positioning airbag 40 carries the explosives and, after being pushed to the blasting position by the telescopic airbag 30, expands and abuts against the side wall of the blasting position.

[0031] Compared with existing technologies, the airbag delivery device provided in this embodiment provides a stable support at the inlet with the fixed airbag 10, ensuring that the entire device will not shift during subsequent pushing. The telescopic airbag 30 can flexibly adjust the pushing distance according to the length of the blockage, adapting to the blasting requirements at different depths. The positioning airbag 40 can carry the explosive to the predetermined position, inflate and position itself, ensuring accurate blasting, and then retract the fixed airbag 10 and the telescopic airbag 30. The device has low cost and good adaptability.

[0032] The exhaust design of the first and second connecting sections enables orderly transitions between different working states, improving operational controllability and safety. This structure is suitable for channels of various shapes, especially curved or irregular channels, significantly reducing construction difficulty and safety risks.

[0033] In some embodiments, the aforementioned fixation airbag 10 may employ, as follows: Figure 1 , Figure 2 The structure shown. See also Figure 1 , Figure 2 The fixed airbag 10 includes a disc-shaped airbag 11, a connecting air valve 12, and an electric air valve 13. The disc-shaped airbag 11 is located at the outlet of the blocked position. The connecting air valve 12 is located on the disc-shaped airbag 11 and communicates with the disc-shaped airbag 11 and the gas supply unit 20. The electric air valve 13 is located on the disc-shaped airbag 11 and communicates with the disc-shaped airbag 11 and the telescopic airbag 30. The electric air valve 13 is used to control the connection and closure of the disc-shaped airbag 11 and the telescopic airbag 30, and the electric air valve 13 is the first connecting part.

[0034] The disc-shaped airbag 11 provides a larger contact area, ensuring a more secure and reliable fixation at the outlet and preventing loosening or displacement during the extension of the telescopic airbag 30. The separate design of the connecting air valve 12 and the electric air valve 13 allows for independent control of the fixed airbag 10 and the telescopic airbag 30, enabling adjustment of their air pressures according to actual working conditions. The electric air valve 13 makes the airflow control between the fixed airbag 10 and the telescopic airbag 30 more precise and convenient, allowing for automated switching via remote control without manual intervention, thus improving operational safety, especially suitable for operations in hazardous environments. This structural design allows the fixed airbag 10 to provide stable support while simultaneously controlling the working state of the subsequent telescopic airbag 30 via the electric air valve 13, achieving orderly connection and precise control of the equipment's operation.

[0035] In some embodiments, the aforementioned telescopic airbag 30 may employ, for example... Figure 1 , Figure 2 The structure shown. See also Figure 1 , Figure 2 The telescopic airbag 30 includes a folded air column 31 and a pressure valve 32. The folded air column 31 has multiple folded sections. One end of the folded air column 31 is connected to the electric air valve 13, and the other end extends toward the blockage position. The pressure valve 32 is disposed on the extended end of the folded air column 31 and moves toward the blockage position as the extended end of the folded air column 31 extends. One end of the pressure valve 32 is connected to the folded air column 31, and the other end of the pressure valve 32 extends along the extension direction of the folded air column 31. The pressure valve 32 is a second connecting part.

[0036] The size of the connecting end of the folded air column 31 is larger than the size of the protruding end of the folded air column 31.

[0037] The telescopic airbag 30 adopts a folded air column 31 structure, and its length changes through the extension of multiple folding segments. Compared with the traditional sleeve-type telescopic structure, it has the characteristics of light weight, large extension distance, and strong adaptability. The conical design of the folded air column 31 (the size of the connected end is larger than that of the extended end) makes the telescopic airbag 30 easier to pass through narrow or curved channels during the pushing process, reduces the frictional resistance with the channel wall, and reduces the risk of jamming. The pressure air valve 32 is arranged at the extended end and moves synchronously with the telescopic airbag 30 to ensure that the subsequent positioning airbag 40 can be triggered in time after reaching the predetermined position. This structural design enables the telescopic airbag 30 to provide sufficient pushing force, flexibly adapt to complex channel environments, and at the same time realize the linkage control with the positioning airbag 40 through the pressure air valve 32, ensuring the coherence and reliability of the working process.

[0038] In some embodiments, the above-mentioned pressure air valve 32 can adopt a structure such as Figure 1 、 Figure 2 shown in the figure. Refer to Figure 1 、 Figure 2 , the pressure air valve 32 is a pressure-triggered air valve.

[0039] The pressure-triggered air valve does not require additional control lines and can be automatically triggered through the change of the internal air pressure of the telescopic airbag 30, simplifying the equipment structure and reducing the failure points. When the telescopic airbag 30 is fully extended and reaches the preset pressure, the pressure air valve 32 automatically opens, ensuring that the positioning airbag 40 starts to inflate at the best timing, realizing the automatic connection of the working process. This design makes the equipment more adaptable to complex environments. Even in the case of poor visibility or inability to directly observe, it can accurately judge the working state of the telescopic airbag 30 and trigger the next operation, improving the reliability of the equipment and the convenience of operation.

[0040] In some embodiments, the above-mentioned positioning airbag 40 can adopt a structure such as Figure 1 、 Figure 2 shown in the figure. Refer to Figure 1 、 Figure 2 , the positioning airbag 40 has a first annular airbag segment 41 and a second annular airbag segment 42. The first annular airbag segment 41 is connected to the pressure air valve 32, and the first annular airbag segment 41 is sleeved on the extended end of the pressure air valve 32. The second annular airbag segment 42 is connected to the first annular airbag segment 41 and is integrally connected to the first annular airbag segment 41. The second annular airbag segment 42 has an annular cavity with an open top, and the annular cavity is a receiving cavity. The first annular airbag segment 41 is used to separate from the pressure air valve 32 in the inflated state, and the first annular airbag segment 41 is the separating part.

[0041] Among them, a one-way valve is provided at the connection between the positioning airbag 40 and the pressure air valve 32, and the one-way valve is used to prevent the gas inside the positioning airbag 40 from being discharged after it is separated.

[0042] The positioning airbag 40 adopts a double-ring airbag segment design. The first ring airbag segment 41 is responsible for connecting and disconnecting from the pressure valve 32, while the second ring airbag segment 42 is responsible for carrying and positioning the explosive. The functions are clearly divided. The first ring airbag segment 41 is fitted onto the pressure valve 32. After inflation, it generates radial expansion force, achieving reliable disconnection from the pressure valve 32, solving the problems of complex structure and low reliability of traditional mechanical disconnection mechanisms. The annular cavity design allows for stable placement of the explosive. The inflated second ring airbag segment 42 fits tightly against the channel sidewall, ensuring stable positioning of the explosive at the predetermined location. The one-way valve prevents gas leakage after the positioning airbag 40 disconnects, ensuring sustained stability in the positioning state. This structural design achieves reliable carrying, precise delivery, and stable positioning of the explosive, significantly improving the safety and accuracy of blasting operations.

[0043] In some embodiments, the positioning airbag 40 may be adopted as follows: Figure 1 , Figure 2 The structure shown. See also Figure 1 , Figure 2 The positioning airbag 40 is also equipped with a limiting cover 43, which is placed over the opening of the annular cavity.

[0044] The limiting cover 43 solves the problem of explosives potentially detaching from the annular cavity during transport, ensuring that the explosives are safely and reliably transported to the predetermined position. The limiting cover 43, by covering, ensures the stable placement of the explosives without affecting the shape change of the positioning airbag 40 during inflation. After the positioning airbag 40 reaches the predetermined position and inflates, the limiting cover 43 remains in the positioning position along with the explosives, without affecting the blasting effect. This design is simple and reliable, eliminating the need for complex locking mechanisms, improving the safety of the transport process without increasing operational difficulty, making the equipment more convenient and reliable to use.

[0045] The working process of the airbag delivery device in this application is as follows:

[0046] Preparation phase: Place the explosive material into the annular cavity of the positioning airbag 40 and secure it with the upper limit cap 43. Fit the first annular airbag segment 41 of the positioning airbag 40 onto the pressure valve 32 of the telescopic airbag 30, ensuring a secure connection. Place the fixing airbag 10 at the outlet of the blocked location.

[0047] Fixing stage: The gas supply unit 20 inflates the fixing airbag 10, causing the disc-shaped airbag 11 to expand and fit tightly against the periphery of the outlet, thus fixing the entire device in place. After reaching the preset pressure, the connecting air valve 12 remains open.

[0048] Pushing phase: The control system opens the electric air valve 13, and gas enters the folded air column 31 of the telescopic air bag 30 through the fixed air bag 10. After the folded air column 31 is inflated, it gradually extends, pushing the positioning air bag 40 and the explosive material into the blocked location. As the folded air column 31 extends, its smaller diameter protruding end can more easily pass through narrow or curved channels.

[0049] Positioning Phase: When the telescopic airbag 30 is fully extended and the internal air pressure reaches the preset value of the pressure valve 32, the pressure valve 32 automatically opens. Gas enters the positioning airbag 40 through the pressure valve 32, and the first annular airbag section 41 and the second annular airbag section 42 simultaneously begin to inflate. After inflating, the first annular airbag section 41 disengages from the pressure valve 32, and the one-way valve closes to prevent gas leakage. After inflating, the second annular airbag section 42 fits tightly against the side wall of the channel, fixing the explosive in the predetermined blasting position.

[0050] Recovery Phase: After the positioning airbag 40 detaches, the electric air valve 13 is closed, releasing the gas inside the telescopic airbag 30, and the folding air column 31 retracts and retracts. The gas inside the fixing airbag 10 is then released, and the main body of the equipment is removed from the outlet, completing the entire conveying process.

[0051] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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. An airbag delivery device, characterized in that, include: A fixed airbag is provided at the outlet of the blocked location. The fixed airbag has an air inlet and a first connecting portion. The air inlet is connected to a gas supply unit. The first connecting portion is used to exhaust gas after the fixed airbag inflates and the gas is discharged at the outlet of the blocked location. The telescopic airbag has a connection port at one end connected to the first connecting portion; and a second connecting portion at the other end, which is used to release air after the telescopic airbag inflates and extends. The positioning airbag has a receiving cavity for placing explosives; the positioning airbag also has a detachable part that is detachably connected to the second communicating part; the positioning airbag is used to carry explosives and, after being pushed to the blasting position by the telescopic airbag, inflates and abuts against the side wall of the blasting position.

2. The airbag delivery device as described in claim 1, characterized in that, The fixed airbag includes: A disc-shaped airbag is positioned at the outlet of the obstruction location; A connecting valve is provided on the disc-shaped air bag and is connected to the disc-shaped air bag and the gas supply unit; An electric air valve is disposed on the disc-shaped airbag and communicates with the disc-shaped airbag and the telescopic airbag. The electric air valve is used to control the connection and closure of the disc-shaped airbag and the telescopic airbag. The electric air valve is the first communication part.

3. The airbag delivery device as described in claim 2, characterized in that, The telescopic airbag includes: The folded air column has multiple folded sections, one end of which is connected to the electric air valve, and the other end extends toward the blockage position. A pressure valve is disposed on the extended end of the folded air column and moves toward the blockage position as the extended end of the folded air column extends. One end of the pressure valve is connected to the folded air column, and the other end of the pressure valve extends along the extension direction of the folded air column. The pressure valve is the second connecting part. The size of the connecting end of the folded air column is larger than the size of the protruding end of the folded air column.

4. The airbag delivery device as described in claim 3, characterized in that, The pressure valve is a pressure-triggered valve.

5. The airbag delivery device as described in claim 3, characterized in that, The positioning airbag has a first annular airbag segment and a second annular airbag segment. The first annular airbag segment is connected to the pressure valve and is sleeved on the extended end of the pressure valve. The second annular airbag segment is connected to the first annular airbag segment and is integrally connected to the first annular airbag segment. The second annular airbag segment has an annular cavity with an open top, which is the receiving cavity. The first annular airbag segment is used to detach from the pressure valve when inflated, and the first annular airbag segment is the detachment part. The positioning airbag is connected to the pressure valve by a one-way valve, which is used to prevent the gas inside the positioning airbag from being released after it is detached.

6. The airbag delivery device as described in claim 5, characterized in that, The positioning airbag is also provided with a limiting cover, which covers the opening of the annular cavity.

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