Modular air spacer connecting device suitable for complex geology
By using the adjustment mechanism and quick-release mechanism of the modular air separator connection device, the problem of needing to replace air separators of different lengths in the prior art is solved, enabling flexible use and cost reduction under complex geological conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-27
- Publication Date
- 2026-04-07
AI Technical Summary
Existing air spacers require replacement with spacers of different lengths when dealing with boreholes of varying depths, increasing operating costs and reducing their practicality.
A modular air gap connection device was designed, which includes an adjustment mechanism and a quick-release mechanism. The length is adjusted by adjusting the motor and the lead screw, and the limit block guides and limits the movement. The modular assembly is achieved by combining the expansion airbag and the air tank.
This technology eliminates the need to replace spacers of different lengths in different geological environments, improving practicality and convenience while reducing operating costs.
Smart Images

Figure CN224095039U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air separator technology, specifically a modular air separator connection device suitable for complex geological conditions. Background Technology
[0002] An air gap is a blasting auxiliary device used in engineering fields such as mines and quarries. It is mainly used for deep-hole blasting in open-pit mines. Under complex geological conditions, it can significantly optimize the blasting effect. By forming a gap in the blast hole, it reduces the radius of the rock over-crushing zone, expands the rock fracture zone, increases the stress wave effect and the time of action of the explosive gas on the ore and rock, improves the energy utilization rate of explosives, improves the crushing effect, and reduces the proportion of large pieces.
[0003] In the prior art, such as the air gap disclosed in publication number CN209978745U, there is a tube body and a sealing element. The outer diameter of the tube body is slightly smaller than the inner diameter of the borehole. The tube body is hollow, and its side walls are sealed. Both the upper and lower ends of the tube body are sealed by the sealing element. The tube body is made of a rigid material. It uses a pull rope with one end passing through a lifting ring. The air gap is suspended in the middle of the pull rope. By slowly lowering the pull rope, the air gap is placed into the deep hole. After the air gap is placed in the designated position, one end of the pull rope is lowered, and the other end is pulled to remove the pull rope. This allows for convenient placement and removal of the air gap, and the pull rope is recyclable.
[0004] The existing air gaper is suspended by passing one end of a rope through a lifting ring and placing the air gaper in the middle of the rope. The air gaper is then slowly lowered into the deep hole by lowering the rope. However, it does not have an adjustment function during use, and air gapers of different lengths need to be replaced when dealing with blast holes of different depths, which increases the cost of use and makes it impractical. Utility Model Content
[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0006] Given that the existing technology lacks an adjustment function during use, and requires the replacement of spacers of different lengths when dealing with boreholes of different depths, thus increasing the cost of use and resulting in poor practicality.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A modular air gap connector for complex geological conditions includes a housing, an adjustable housing telescopically connected to the lower surface of the housing, an adjustment mechanism for adjusting the length of the device inside the housing, and a quick-release mechanism for quick release of the air bladder at the lower end of the adjustable housing.
[0009] The adjustment mechanism includes two adjustment motors, both of which are fixed inside the housing of the device by screws. The power output shafts of the two adjustment motors are fixed with lead screws, and the outer surface of the lead screws is threaded with threaded grooves formed on the inner wall of the adjustment housing.
[0010] As a further embodiment of this utility model: the upper end of the adjusting shell is welded with an inner shell, and two limiting blocks are fixed to the outer wall of the inner shell.
[0011] As a further improvement of this utility model, one side of each of the two limiting blocks is slidably connected to a limiting groove formed on the inner wall of the device housing.
[0012] As a further improvement of this utility model, a rope-threading hole is provided at one end of both the outer shell and the adjusting shell of the device.
[0013] As a further improvement of this utility model, two fixing rings are welded to the upper surface of the device housing.
[0014] As a further improvement of this utility model: the quick-release mechanism includes a connector, which is welded to the lower surface of the adjusting shell, and a fixing rope is connected inside the connector.
[0015] As a further improvement of this utility model: a connector is fixed to the lower surface of the fixing rope, and a gas storage tank is welded to the lower end of the connector.
[0016] As a further improvement of this utility model: an expansion air bladder is connected to the lower surface of the gas storage tank, and a hand-operated valve that communicates with the expansion air bladder is connected to the interior of the gas storage tank.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] 1. This utility model can adjust the distance between the adjusting shell and the device shell, thereby adjusting the length of the device. The limiting block set on the inner shell of the device, in cooperation with the limiting groove, can play a guiding and limiting role, ensuring that the adjusting shell will not deviate when it moves, improving practicality, and making it easy to use in different geological environments without the need to replace spacers of different lengths.
[0019] 2. This utility model uses a connector on the gas tank to connect and fix the gas tank and the connector by aligning the connector with the connector and turning it. This achieves the function of modular assembly. The fixing ring on the outer shell of the device is connected and fixed to the external lifting rope. The user can use the lifting rope to put the outer shell of the device and the adjusting shell into the blast hole. Attached Figure Description
[0020] Figure 1 A three-dimensional structural diagram of a modular air gap connection device suitable for complex geological conditions;
[0021] Figure 2 A cross-sectional structural diagram of the connector in a modular air gap connection device suitable for complex geological conditions;
[0022] Figure 3 A three-dimensional structural diagram of the housing of a modular air gap connection device suitable for complex geological conditions;
[0023] Figure 4 A cross-sectional structural diagram of the outer casing of a modular air gap connection device suitable for complex geological conditions.
[0024] Figure 5 This is a three-dimensional structural diagram of the adjusting shell in a modular air gap connection device suitable for complex geological conditions.
[0025] In the diagram: 1. Device outer shell; 2. Adjustment outer shell; 3. Adjustment motor; 31. Lead screw; 32. Threaded groove; 33. Device inner shell; 34. Limiting block; 35. Limiting groove; 4. Rope threading hole; 5. Fixing ring; 6. Connecting piece; 61. Fixing rope; 62. Connecting head; 63. Gas tank; 64. Inflatable air bladder; 65. Hand valve. Detailed Implementation
[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0029] Example 1
[0030] Please see Figures 1-5 This is the first embodiment of the present invention. This embodiment provides a modular air gap connection device suitable for complex geology, including a device housing 1, an adjustable housing 2 telescopically connected to the lower surface of the device housing 1, an adjustment mechanism for adjusting the length of the device inside the device housing 1, and a quick-release mechanism for quick release of the air bladder at the lower end of the adjustable housing 2.
[0031] The adjustment mechanism includes two adjustment motors 3. Both adjustment motors 3 are fixed inside the housing 1 of the device by screws. The power output shafts of the two adjustment motors 3 are fixed with lead screws 31. The outer surface of the lead screws 31 is threaded with threaded grooves 32 opened on the inner wall of the adjustment housing 2.
[0032] Specifically, the upper end of the adjusting outer shell 2 is welded with the inner shell 33 of the device, and two limiting blocks 34 are fixed on the outer wall of the inner shell 33.
[0033] Furthermore, by adjusting the vertical movement of the outer casing 2, the distance between the outer casing 2 and the outer casing 1 of the device can be adjusted, thereby achieving the function of adjusting the length of the device.
[0034] Specifically, each of the two limiting blocks 34 has a limiting groove 35 slidably connected to one side of the device housing 1.
[0035] Furthermore, the limiting block 34 provided on the inner shell 33 of the device, in cooperation with the limiting groove 35, can play a guiding and limiting role.
[0036] In use, the outer casing 1 and the adjusting casing 2 are placed in suitable positions. When used in boreholes at different geological depths, the adjusting motor 3 inside the outer casing 1 drives the lead screw 31 to rotate. Through the threaded groove 32 inside the adjusting casing 2, the rotation of the lead screw 31 drives the adjusting casing 2 to move vertically, thereby adjusting the distance between the adjusting casing 2 and the outer casing 1, thus adjusting the length of the device. Furthermore, the limiting block 34 on the inner casing 33, in conjunction with the limiting groove 35, plays a guiding and limiting role, ensuring that the adjusting casing 2 does not deviate during movement, improving practicality and facilitating use in different geological environments without the need to replace spacers of different lengths.
[0037] In summary, this modular air gap connection device suitable for complex geological conditions allows for adjustment of the distance between the adjusting housing 2 and the device housing 1 during use, thereby adjusting the length of the device. Through the cooperation of the limiting block 34 and the limiting groove 35, it can play a guiding and limiting role, ensuring that the adjusting housing 2 will not deviate during movement, improving practicality, facilitating use in different geological environments, and eliminating the need to replace gaps of different lengths.
[0038] Example 2
[0039] Please see Figures 1-5 This is the second embodiment of the present utility model.
[0040] Specifically, both the outer casing 1 and the adjusting casing 2 have rope holes 4 at one end, and two fixing rings 5 are welded to the upper surface of the outer casing 1.
[0041] Furthermore, the fixed lifting ring 5 provided on the device housing 1 is used to connect and fix the fixed lifting ring 5 to the external lifting rope, and the user can use the lifting rope to put the device housing 1 and the adjusting housing 2 into the blast hole.
[0042] Specifically, the quick-release mechanism includes a connector 6, which is welded to the lower surface of the adjusting housing 2. A fixing rope 61 is connected inside the connector 6, and a connector head 62 is fixed to the lower surface of the fixing rope 61. An air tank 63 is welded to the lower end of the connector head 62.
[0043] Furthermore, by aligning the connector 62 with the connector 6 and turning it, the gas tank 63 and the connector 6 can be connected and fixed, thus achieving the function of modular assembly.
[0044] Specifically, an expansion air bladder 64 is connected to the lower surface of the gas storage tank 63, and a hand-operated valve 65 is connected to the inside of the gas storage tank 63 and is interconnected with the expansion air bladder 64.
[0045] Furthermore, by manually pulling the fixed rope 61 at the end, the compressed air filled in the air tank 63 can enter the expansion air bag 64 through the hand-operated valve 65, causing the expansion air bag 64 to expand.
[0046] In use, connect the gas tank 63 to the connector 6. Align the connector 62 on the gas tank 63 with the connector 6 and tighten it to connect and fix the gas tank 63 to the connector 6, achieving modular assembly. Before assembly, the fixing rope 61 needs to be passed through the adjusting housing 2 and then through the rope hole 4 on the device housing 1 to the outside. The fixing ring 5 on the device housing 1 is used to connect and fix the fixing ring 5 to the external lifting rope. The user can use the lifting rope to put the device housing 1 and the adjusting housing 2 into the blast hole. After being placed in the appropriate position, manually pull the fixing rope 61 at the end to open the hand valve 65 in the gas tank 63. At this time, the compressed air filled in the gas tank 63 can enter the expansion air bladder 64 through the hand valve 65, causing the expansion air bladder 64 to expand, thereby creating an air gap in the blast hole.
[0047] In summary, this modular air gap connection device suitable for complex geological conditions allows for adjustment of the distance between the adjusting outer shell 2 and the device outer shell 1, thereby adjusting the device length. The cooperation of the limiting block 34 and the limiting groove 35 provides guidance and limitation, ensuring that the adjusting outer shell 2 does not shift during movement, improving practicality and facilitating use in different geological environments. It eliminates the need to replace gaps of different lengths. By aligning the connector 62 on the air tank 63 with the connector 6 and tightening it, the air tank 63 and the connector 6 can be connected and fixed, achieving modular assembly.
[0048] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0049] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0050] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.
[0051] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A modular air gap connection device suitable for complex geological conditions, comprising a device housing (1), characterized in that: The lower surface of the device housing (1) is telescopically connected to an adjustable housing (2). The inside of the device housing (1) is provided with an adjustment mechanism for adjusting the length of the device. The lower end of the adjustable housing (2) is provided with a quick-release mechanism for quick release of the airbag. The adjustment mechanism includes an adjustment motor (3), and there are two adjustment motors (3). Both adjustment motors (3) are fixed inside the device housing (1) by screws. The power output shafts of the two adjustment motors (3) are fixed with lead screws (31). The outer surface of the lead screws (31) is threaded with a threaded groove (32) opened on the inner wall of the adjustment housing (2).
2. The modular air gap connection device suitable for complex geology according to claim 1, characterized in that: The upper end of the regulating outer shell (2) is welded with the inner shell (33), and two limiting blocks (34) are fixed on the outer wall of the inner shell (33).
3. The modular air gap connection device suitable for complex geology according to claim 2, characterized in that: One side of each of the two limiting blocks (34) is slidably connected to a limiting groove (35) opened on the inner wall of the device housing (1).
4. The modular air gap connection device suitable for complex geology according to claim 3, characterized in that: Both the outer casing (1) and the adjusting casing (2) of the device have a rope hole (4) at one end.
5. The modular air gap connection device suitable for complex geology according to claim 4, characterized in that: Two fixing rings (5) are welded to the upper surface of the outer shell (1) of the device.
6. The modular air gap connection device suitable for complex geology according to claim 1, characterized in that: The quick-release mechanism includes a connector (6), which is welded to the lower surface of the adjusting housing (2), and a fixing rope (61) is connected inside the connector (6).
7. The modular air gap connection device suitable for complex geology according to claim 6, characterized in that: A connector (62) is fixed to the lower surface of the fixing rope (61), and a gas storage tank (63) is welded to the lower end of the connector (62).
8. The modular air gap connection device suitable for complex geology according to claim 7, characterized in that: The lower surface of the gas storage tank (63) is connected to an expansion air bladder (64), and the interior of the gas storage tank (63) is connected to a hand-operated valve (65) that is interconnected with the expansion air bladder (64).
Citation Information
Patent Citations
Air spacer
CN209978745U