An open pit deep hole blasting air spacer

By designing an air gaper for open-pit deep-hole blasting, a structure that provides a convenient gripping point and safe storage of raw materials is provided, solving the problem of laborious squatting in existing technologies and achieving efficient and safe blasting operations.

CN224681433UActive Publication Date: 2026-08-25NEIMENGGU KANGNINGBAOPO CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202521904693.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-04
Publication Date
2026-08-25
Estimated Expiration
2035-09-04

AI Technical Summary

Technical Problem

Existing air gaps require personnel to squat down to place them in open-pit deep-hole blasting operations, which is laborious and inefficient.

Method used

An open-air deep-hole blasting air separator was designed, comprising an air bladder, a support plate, a handle, a cylinder, an isolation membrane, and a triggering mechanism. It provides a convenient gripping point, the isolation membrane inside the cylinder separates the storage compartments, and the triggering mechanism facilitates the mixing of reaction raw materials to generate gas.

Benefits of technology

It reduces the labor intensity of operators, improves work efficiency, ensures the safe and orderly storage of gas-generating agents, quickly forms effective intervals, and ensures the smooth progress of blasting operations.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224681433U_ABST
    Figure CN224681433U_ABST
Patent Text Reader

Abstract

The utility model provides a kind of open deep hole blasting air spacer.The open deep hole blasting air spacer includes: air bag;Supporting plate is fixed in the top of the air bag;Handle for providing operating gripping point is installed in the top of the supporting plate;Cylinder for accommodating gas-producing medicament is fixed in the bottom of the supporting plate;Isolation membrane for separating the internal space of the cylinder into first storage bin and second storage bin is installed in the cylinder, and the first storage bin and the second storage bin are used for storing different reaction raw materials.The open deep hole blasting air spacer provided by the utility model sets handle, provides convenient gripping point for operator, so that personnel do not need to crouch down to place in open deep hole blasting operation, can be directly handheld, avoid repeated squatting, reduce labor intensity, and improve work efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of blasting air separators, and in particular to an open-air deep-hole blasting air separator. Background Technology

[0002] Air spacers are used in mining operations, open-pit deep-hole drilling, and other similar work sites. In use, the air spacer is positioned inside the blast hole, and explosives or stemming material are added to the blast hole above the air spacer for detonation, thus improving the rock and ore fragmentation effect. However, current air spacers require personnel to squat down and place them one by one into the deep hole, which is physically demanding due to the repeated squatting and standing.

[0003] Therefore, it is necessary to provide a new open-pit deep-hole blasting air gaper to solve the above-mentioned technical problems. Utility Model Content

[0004] To address the technical problem that existing air gap devices require personnel to squat down and place them one by one into deep holes, which is laborious due to repeated squatting and standing, this utility model provides an open-air deep-hole blasting air gap device.

[0005] The open-pit deep-hole blasting air separator provided by this utility model includes: an air bladder; a support plate fixed to the top of the air bladder; a handle installed on the top of the support plate for providing an operating grip point; a cylinder fixed to the bottom of the support plate for containing gas-generating agents; an isolation membrane installed in the cylinder for dividing the internal space of the cylinder into a first storage chamber and a second storage chamber, the first storage chamber and the second storage chamber being used to store different reaction raw materials; and a triggering mechanism provided on the support plate for assisting in mixing reaction raw materials to generate gas.

[0006] Preferably, the triggering mechanism includes a guide tube movably mounted on the support plate, a connecting rod fixed between the guide tube and the isolation membrane, a connecting tube fixed to the top of the guide tube, and a pull rope mounted on the top of the connecting tube and connected to the handle.

[0007] Preferably, the guide tube is provided with a limiting ring that contacts the bottom of the support plate to stabilize the guide tube and prevent it from easily loosening, and the top of the guide tube is fixed with an adhesive plate that is adhered to the top of the support plate. The first storage compartment is provided with ventilation holes.

[0008] Preferably, a support cylinder is installed at the bottom of the airbag, the support cylinder is filled with gravel to increase the counterweight, a collection hopper is fixed inside the support cylinder, and a block for sealing the support cylinder is detachably installed on the collection hopper.

[0009] Preferably, a baffle is installed on the block, and a sealing ring that contacts the inner wall of the hopper to prevent material leakage is installed on the baffle. A pinch piece for providing an operating gripping point is fixed on the baffle.

[0010] Preferably, the bottom of the cylinder is fixed with an extension rod for supporting the airbag, and the top of the support cylinder is provided with an adjusting cylinder that is rotatably sleeved outside the extension rod.

[0011] Preferably, the handle cover is provided with an indicator film to help personnel distinguish between the handle and the pull cord, and the airbag is composed of a nylon pocket, a rubber tube and a plastic film respectively set on the inner and outer walls of the nylon pocket for preventing air leakage, and a wear-resistant pad fitted over the nylon pocket.

[0012] Compared with related technologies, the open-pit deep-hole blasting air gaper provided by this utility model has the following beneficial effects: This utility model provides an air gap for open-air deep-hole blasting: By incorporating a handle, a convenient gripping point is provided for operators, eliminating the need to squat down to place items during open-pit deep-hole blasting operations. Instead, personnel can operate directly by hand, avoiding repeated squatting and standing, reducing labor intensity, and improving work efficiency. By fixing the cylinder to the bottom of the support plate, the cylinder is divided into a first storage chamber and a second storage chamber by an isolation membrane, which can store different reaction materials separately, ensuring orderly and safe storage of gas-producing agents. A triggering mechanism facilitates operation to rupture the isolation membrane, allowing the reaction materials to mix rapidly and generate gas, causing the gasbag to expand and forming an effective gap in a timely manner, thus ensuring the success of the blasting operation. Attached Figure Description

[0013] Figure 1 A front view schematic diagram of a preferred embodiment of the open-air deep-hole blasting air separator provided by this utility model; Figure 2 This is a schematic diagram of the front cross-sectional structure of the triggering mechanism in this utility model; Figure 3 This is a bottom view of the support cylinder structure in this utility model; Figure 4 This is a three-dimensional structural diagram of the material collection hopper in this utility model.

[0014] The following are the labels in the diagram: 1. Airbag; 2. Support plate; 3. Handle; 4. Guide cylinder; 5. Limiting ring; 6. Adhesive plate; 7. Connecting cylinder; 8. Pull rope; 9. Cylinder body; 10. Separating membrane; 11. First storage bin; 12. Second storage bin; 13. Connecting rod; 14. Support cylinder; 15. Collection hopper; 16. Block; 17. Squeezing plate. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Please refer to the following: Figures 1-4 ,in, Figure 1 A front view schematic diagram of a preferred embodiment of the open-air deep-hole blasting air separator provided by this utility model; Figure 2 This is a schematic diagram of the front cross-sectional structure of the triggering mechanism in this utility model; Figure 3 This is a bottom view of the support cylinder structure in this utility model; Figure 4 This is a three-dimensional structural diagram of the material collection hopper in this utility model.

[0017] The open-pit deep-hole blasting air separator includes: an airbag 1; a support plate 2 fixed to the top of the airbag 1; a handle 3 installed on the top of the support plate 2 to provide an operating grip point; a cylinder 9 fixed to the bottom of the support plate 2 for containing gas-generating agents; a separation membrane 10 installed inside the cylinder 9 to divide the internal space of the cylinder 9 into a first storage chamber 11 and a second storage chamber 12, the first storage chamber 11 and the second storage chamber 12 being used to store different reaction materials; and a triggering mechanism provided on the support plate 2 to assist in mixing the reaction materials to generate gas. The handle 3 provides a convenient grip point for the operator, allowing personnel to operate without needing to get out of the airbag during open-pit deep-hole blasting operations. The air separator is placed in a squatting position, allowing for direct hand-held operation via the handle 3, avoiding repeated squatting and standing, significantly reducing labor intensity and improving work efficiency. By fixing the cylinder 9 to the bottom of the support plate 2 and setting an isolation membrane 10 inside the cylinder 9, the internal space is divided into a first storage chamber 11 and a second storage chamber 12, which serves to store different reaction materials separately, making the storage of gas-generating agents more orderly and safe. By setting a triggering mechanism on the support plate 2, the reaction materials in the first storage chamber 11 and the second storage chamber 12 can be easily mixed when needed, thereby quickly generating gas to inflate the airbag 1, and promptly forming an effective gap between explosives or between explosives and plugging clay, ensuring the smooth progress of blasting operations.

[0018] The triggering mechanism includes a guide cylinder 4 movably mounted on the support plate 2, a connecting rod 13 fixed between the guide cylinder 4 and the isolation membrane 10, a connecting cylinder 7 fixed to the top of the guide cylinder 4, and a pull rope 8 installed on the top of the connecting cylinder 7 and connected to the handle 3. By setting the guide cylinder 4 movably mounted on the support plate 2, it plays a flexible guiding role, enabling the triggering action to be accurately transmitted. The guide cylinder 4 can move along a specific direction, providing a stable movement trajectory for subsequent operations. By using the connecting rod 13 fixed between the guide cylinder 4 and the isolation membrane 10, the guide cylinder 4 and the isolation membrane 10 are effectively connected, so that the movement of the guide cylinder 4 can cause the isolation membrane 10 to break, thereby mixing the reaction materials in the first storage chamber 11 and the second storage chamber 12. By fixing the connecting cylinder 7 to the top of the guide cylinder 4 and installing the pull rope 8 connected to the handle 3 on the top of the connecting cylinder 7, the operator can pull the handle 3 to move the guide cylinder 4 via the pull rope 8 and the connecting cylinder 7, making the operation simple and labor-saving.

[0019] The guide tube 4 is provided with a limiting ring 5 that contacts the bottom of the support plate 2 to stabilize the guide tube 4 and prevent it from easily loosening. The top of the guide tube 4 is fixed with an adhesive plate 6 that is adhered to the top of the support plate 2. The first storage chamber 11 is provided with a vent hole. By setting the limiting ring 5 that contacts the bottom of the support plate 2, the guide tube 4 is stabilized, so that the guide tube 4 can be firmly fixed to the support plate 2 when no operation is triggered, effectively preventing it from easily loosening. This avoids premature gas generation reaction caused by accidental movement of the guide tube 4, ensuring the safety and stability of the air separator during storage and transportation. By fixing the adhesive plate 6 to the top of the guide tube 4 and adhering it to the top of the support plate 2, the fixing effect of the guide tube 4 is further enhanced, making the connection between the guide tube 4 and the support plate 2 more tight and reliable. The double fixing structure greatly reduces the possibility of the guide tube 4 shaking or shifting.

[0020] A support cylinder 14 is installed at the bottom of the airbag 1. The support cylinder 14 is filled with gravel to increase the counterweight. A collection hopper 15 is fixed inside the support cylinder 14. A plug 16 for sealing the support cylinder 14 is detachably installed on the collection hopper 15. By installing the support cylinder 14 at the bottom of the airbag 1, a stable support is provided, so that the air spacer can maintain a stable posture in the blast hole and is not easy to tilt or shift due to operations such as loading explosives, thus ensuring the accuracy of the blast interval. By filling the support cylinder 14 with gravel to increase the counterweight, the overall center of gravity of the air spacer is lowered, and the stability is enhanced, making it more firmly placed in the deep hole and avoiding shaking due to external factors such as slight vibrations, further improving the reliability of the blasting operation. By fixing the collection hopper 15 inside the support cylinder 14 and detachably installing the plug 16, the state of the gravel can be easily controlled.

[0021] A baffle is installed on the block 16, and a sealing ring is installed on the baffle to prevent material leakage in contact with the inner wall of the hopper 15. A pinch piece 17 is fixed on the baffle to provide an operating grip point. By installing the baffle on the block 16, the direct impact and accidental scattering of sand and gravel are blocked, providing a stable structural foundation for subsequent sealing and operation. By installing the sealing ring on the baffle to contact the inner wall of the hopper 15, the leakage prevention effect is achieved, effectively preventing sand and gravel in the support cylinder 14 from leaking from the gap between the block 16 and the hopper 15 during transportation, placement and blasting preparation, ensuring the stability of the counterweight. By fixing the pinch piece 17 on the baffle, a convenient grip point is provided for the operator, so that when it is necessary to disassemble or install the block 16, force can be easily applied and the operation can be completed quickly.

[0022] The bottom of the cylinder 9 is fixed with an extension rod for supporting the airbag 1. The top of the support cylinder 14 is provided with an adjusting cylinder that is rotatably sleeved outside the extension rod. By fixing the extension rod for supporting the airbag 1 at the bottom of the cylinder 9, the airbag 1 is stably supported, so that the airbag 1 can be reliably supported during the inflation process, and is not prone to local deformation or displacement. This ensures that the air gaper forms a stable and regular air gap in the blast hole, thereby improving the blasting effect.

[0023] The handle 3 is covered with an indicator film to help personnel distinguish between the handle 3 and the pull rope 8. The airbag 1 consists of a nylon pouch, rubber cylinders and plastic films respectively set on the inner and outer walls of the nylon pouch for preventing air leakage, and a wear-resistant pad covered on the outside of the nylon pouch. By covering the handle 3 with the indicator film, it helps personnel quickly distinguish between the handle 3 and the pull rope 8, making it convenient for operators to quickly and accurately find the handle 3 for gripping and operation, avoiding accidental operation of the pull rope 8 that would prematurely trigger the gas generation reaction, thus improving the safety and efficiency of the operation. The nylon pouch provides a basic frame structure for the airbag 1. The rubber cylinders and plastic films set on the inner and outer walls respectively provide double protection and a good air leakage prevention effect, ensuring that the airbag 1 can maintain its shape stably after inflation and effectively play its role in spacing. By setting a wear-resistant pad on the outside of the nylon pouch, the wear resistance of the airbag 1 is enhanced, making it less likely to be damaged during insertion into the burst hole and friction with the hole wall, thus extending the service life of the airbag 1.

[0024] The working principle of the open-air deep-hole blasting air gap device provided by this utility model is as follows: In use, the operator holds the handle 3 and places the open-pit deep-hole blasting air spacer into the designated position inside the blasting hole. When it is necessary to trigger gas generation to inflate the airbag 1, the operator pulls the pull rope 8, which is installed on the top of the connecting cylinder 7. The connecting cylinder 7 is fixed to the top of the guide cylinder 4, thereby driving the guide cylinder 4 to move. The guide cylinder 4 has a limit ring 5 that contacts the bottom of the support plate 2 and an adhesive plate 6 that is attached to the top of the support plate 2 to ensure the initial stability of the guide cylinder 4. At this time, the guide cylinder 4 moves. Since the guide cylinder 4 and the isolation membrane 10 are fixedly connected by the connecting rod 13, the movement of the guide cylinder 4 causes the isolation membrane 10 to rupture, so that the different reaction materials in the first storage chamber 11 and the second storage chamber 12 separated by the isolation membrane 10 inside the cylinder 9 are mixed. With the assistance of the triggering mechanism, gas is generated quickly. The gas enters the airbag 1 and inflates it. After the airbag 1 inflates, it forms an effective gap between explosives or between explosives and plugging clay.

[0025] Compared with related technologies, the open-pit deep-hole blasting air gaper provided by this utility model has the following beneficial effects: This utility model provides an air separator for open-air deep-hole blasting. By setting a handle 3, it provides a convenient gripping point for operators, allowing them to operate directly by hand without having to squat down to place the air separator during open-air deep-hole blasting operations. This avoids repeated squatting and standing, reduces labor intensity, and improves work efficiency. By fixing a cylinder 9 to the bottom of a support plate 2, the cylinder 9 is divided into a first storage chamber 11 and a second storage chamber 12 by an isolation membrane 10, which can store different reaction materials separately. This ensures that the gas-producing agents are stored in an orderly and safe manner. A triggering mechanism is set up to facilitate operation and break the isolation membrane 10. The reaction materials mix and quickly generate gas, causing the air bladder 1 to expand and form an effective air gap in time, ensuring the blasting operation.

[0026] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, those skilled in the art who understand the principle of the above utility model can clearly understand the specific details of its power mechanism, power supply system and control system.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An open-pit deep-hole blasting air gaper, characterized in that, include: airbags; A support plate fixed to the top of the airbag; A handle is installed on the top of the support plate to provide an operating grip point; A cylinder fixed to the bottom of the support plate to hold the gas-generating agent; An isolation membrane is installed inside the cylinder to divide the internal space of the cylinder into a first storage compartment and a second storage compartment, the first storage compartment and the second storage compartment being used to store different reaction raw materials; A triggering mechanism is installed on the support plate to assist in mixing the reaction raw materials to generate gas.

2. The open-pit deep-hole blasting air gaper according to claim 1, characterized in that, The triggering mechanism includes a guide tube movably mounted on the support plate, a connecting rod fixed between the guide tube and the isolation membrane, a connecting tube fixed to the top of the guide tube, and a pull rope mounted on the top of the connecting tube and connected to the handle.

3. The open-pit deep-hole blasting air gaper according to claim 2, characterized in that, The guide tube is provided with a limiting ring that contacts the bottom of the support plate to stabilize the guide tube and prevent it from easily loosening. The top of the guide tube is fixed with an adhesive plate that is attached to the top of the support plate. The first storage compartment is provided with ventilation holes.

4. The open-pit deep-hole blasting air gaper according to claim 1, characterized in that, The bottom of the airbag is equipped with a support cylinder, which is filled with gravel to increase the counterweight. A collection hopper is fixed inside the support cylinder, and a block for sealing the support cylinder is detachably installed on the collection hopper.

5. The open-pit deep-hole blasting air gaper according to claim 4, characterized in that, A baffle is installed on the block, and a sealing ring is installed on the baffle to prevent material leakage in contact with the inner wall of the hopper. A pinch piece is fixed on the baffle to provide an operating grip point.

6. The open-pit deep-hole blasting air gaper according to claim 4, characterized in that, The bottom of the cylinder is fixed with an extension rod for supporting the airbag, and the top of the support cylinder is provided with an adjusting cylinder that is rotatably sleeved outside the extension rod.

7. The open-pit deep-hole blasting air gaper according to claim 2, characterized in that, The handle cover is provided with an indicator film to help people distinguish between the handle and the pull cord. The airbag consists of a nylon pocket, rubber cylinders and plastic films respectively set on the inner and outer walls of the nylon pocket for preventing air leakage, and a wear-resistant pad fitted over the nylon pocket.