A coal mine gas over-limit ventilation device for coal mining

Abstract

The utility model belongs to coal mining equipment technical field, concretely is a kind of coal mining with coal mine gas over-limit ventilation device, it includes: base, the base upper end portion fixed mounting has support column, the support column upper end portion fixed mounting has box, the inside of box is hollow state, the inside installation of box has blast group component, the one end of box is equipped with air inlet, the other end of box is equipped with air outlet, the both ends of box are respectively sealed and are connected with bellows, one of bellows is installed at air inlet, another bellows is installed at air outlet, the one end of bellows away from box is fixed mounting and has installed block, dust screen can be detached and is installed in the installed block, the base upper end portion is installed for the angle adjusting component of adjusting the bending angle of bellows.

Description

Technical Field

[0001] This utility model belongs to the technical field of coal mining equipment, specifically a coal mine gas over-limit ventilation device. Background Technology

[0002] Ventilation is a crucial aspect of ensuring operational safety and a safe working environment during coal mining. The underground environment in coal mines is complex, with confined spaces and the presence of various harmful gases, necessitating ventilation systems to introduce fresh air and expel harmful gases.

[0003] Currently used ventilation systems in coal mines mostly have fixed-angle ventilation ducts, which cannot be flexibly adjusted according to actual ventilation needs. Since ventilation requirements vary in different areas of a coal mine, fixed-angle ventilation ducts cannot achieve precise ventilation for different areas, potentially leading to insufficient ventilation in some areas, affecting the health and safety of workers; at the same time, it may also result in energy waste and increase mining costs.

[0004] Therefore, a coal mine gas over-limit ventilation device that can adjust the angle of the ventilation pipe is needed to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a coal mine gas over-limit ventilation device.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A coal mine gas over-limit ventilation device, comprising:

[0008] The base has a support column fixedly installed at its upper end, and a housing fixedly installed at the upper end of the support column. The housing is hollow inside and contains a blower assembly. One end of the housing has an air inlet, and the other end has an air outlet. Corrugated pipes are sealed and connected to both ends of the housing, with one corrugated pipe installed at the air inlet and the other at the air outlet. A mounting block is fixedly installed at the end of each corrugated pipe away from the housing, and a dustproof net is detachably installed inside the mounting block. An angle adjustment assembly for adjusting the bending angle of the corrugated pipes is installed at the lower end of the two corrugated pipes on the upper end of the base.

[0009] Furthermore, the blower assembly includes a blower and a fixing block for fixing the blower. The blower is fixedly installed inside the housing by two fixing blocks, and the fixing blocks are fixedly connected to the inner wall of the housing.

[0010] Furthermore, the mounting block has an internal mounting groove, the dustproof net is installed in the mounting groove, the mounting block has slots on both sides of the mounting groove, the mounting block has a detachable limit block installed at the mounting groove, the limit block has a locking block at both ends, the limit block is detachably connected to the mounting block through a plug-in component, and the plug-in component is fixedly installed on the side of the mounting block.

[0011] Furthermore, the mounting block has a through hole at the side end of the plug-in assembly, and the card block has a plug hole at the side end. The plug-in assembly includes a connecting plate, a pin, and a connecting spring. The connecting plate is fixedly connected to the mounting block by two connecting springs. The pin is fixedly installed on the side end of the connecting plate, and the end of the pin away from the connecting plate passes through the through hole and is inserted into the plug hole.

[0012] Furthermore, the angle adjustment assembly includes a mounting box, a drive motor, a threaded rod, a moving block, a support rod, and a connecting assembly. The drive motor is fixedly installed inside the base with its output shaft pointing vertically upwards. The mounting box is fixedly installed on the upper end of the base and is located directly above the drive motor. A threaded rod is rotatably installed inside the mounting box, with one end of the threaded rod fixedly connected to the output end of the drive motor. The moving block is threadedly installed on the side end of the threaded rod. One end of the support rod is rotatably connected to the moving block via the connecting assembly, and the other end of the support rod is rotatably connected to the lower end of the mounting block via the connecting assembly.

[0013] Furthermore, the connecting assembly includes two connecting blocks and a connecting shaft, with the connecting shaft fixedly installed between the two connecting blocks.

[0014] Furthermore, four self-locking casters are fixedly installed at the lower end of the base.

[0015] The explanations of the nouns, conjunctions, or adjectives used in the above technical solutions are as follows:

[0016] Fixed connection: refers to a connection in which parts or components are fixed in place and there is no relative movement. It is divided into two types: detachable connection and non-detachable connection.

[0017] (1) Detachable connection: The components are fixed together using screws, splines, wedges, etc. This type of connection can be disassembled during maintenance without damaging the parts. However, the specifications of the connecting parts used must be correct (such as the length of the bolts, keys, wedges) and properly tightened.

[0018] (2) Non-removable connections: These mainly refer to welding, riveting, and tenon joints. Since disassembly requires forging, sawing, or oxyacetylene cutting for repair or replacement, the parts generally cannot be reused. At the same time, attention should be paid to process quality, technical inspection, and remedial measures (such as correction and polishing) during connection.

[0019] The beneficial effects of this utility model are:

[0020] 1. This utility model, by setting an angle adjustment component, can adjust the bending angle of the corrugated pipe, thereby changing the ventilation direction, making ventilation more flexible, improving ventilation effect, and better reducing the gas concentration in coal mines.

[0021] 2. The dustproof net of this utility model adopts a detachable installation method, which is fixed by limiting blocks and plug-in components, making it easy to disassemble and install, convenient to clean and replace the dustproof net, ensuring smooth ventilation and improving ventilation efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall device according to an embodiment of the present invention;

[0024] Figure 2 This is a cross-sectional view of the overall device according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of the mounting block and the limiting block according to an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the mounting block and plug-in assembly according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the limiting block according to an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the connecting component in an embodiment of this utility model.

[0029] In the diagram: 1. Base; 2. Support column; 3. Housing; 4. Blower assembly; 401. Blower; 402. Fixing block; 5. Air inlet; 6. Air outlet; 7. Corrugated pipe; 8. Mounting block; 9. Dustproof net; 10. Angle adjustment assembly; 101. Mounting box; 102. Drive motor; 103. Threaded rod; 104. Moving block; 105. Support rod; 106. Connecting assembly; 1061. Connecting block; 1062. Connecting shaft; 11. Mounting groove; 12. Slot; 13. Limiting block; 14. Locking block; 15. Plug-in assembly; 151. Connecting plate; 152. Pin; 153. Connecting spring; 16. Through hole; 17. Insertion hole; 18. Self-locking caster wheel. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] A coal mine adopts a coal mine gas over-limit ventilation device, such as Figures 1-6 As shown, it includes:

[0032] A base 1 has a support column 2 fixedly installed on its upper end. A housing 3 is fixedly installed on the upper end of the support column 2. The housing 3 is hollow inside and has a blower assembly 4 installed inside. One end of the housing 3 has an air inlet 5, and the other end has an air outlet 6. Corrugated pipes 7 are sealed and connected to both ends of the housing 3. One corrugated pipe 7 is installed at the air inlet 5, and the other corrugated pipe 7 is installed at the air outlet 6. An installation block 8 is fixedly installed at the end of the corrugated pipe 7 away from the housing 3. A dustproof net 9 is detachably installed inside the installation block 8. An angle adjustment assembly 10 for adjusting the bending angle of the corrugated pipe 7 is installed at the lower end of the two corrugated pipes 7 on the upper end of the base 1.

[0033] The base 1 provides a stable support foundation for the entire device. The support column 2 fixes the housing 3 to the upper end of the base 1, ensuring stable installation of the housing 3 and subsequent connected components. This prevents the device from shaking or tipping over during operation, guaranteeing stable ventilation operations. For ventilation, the housing 3 is hollow and houses the blower assembly 4, which, together with the air inlets 5 and outlets 6 at both ends, forms a complete airflow channel. When the blower assembly 4 is working, it draws in air through the air inlets 5 and discharges it through the outlets 6, efficiently achieving air circulation and effectively reducing the concentration of methane gas in coal mines, meeting ventilation needs under conditions of excessive methane levels. The use of the corrugated pipe 7 is a major highlight. It possesses excellent flexibility and bendability, and its sealed connection to both ends of the housing 3 ensures airtightness during air transport, preventing leakage and affecting ventilation efficiency, while also allowing for adjustments to the ventilation direction. Meanwhile, an installation block 8 with a dustproof net 9 is installed at the end of the corrugated pipe 7 furthest from the housing 3. The dustproof net 9 filters the incoming and outgoing air, preventing dust, coal slag, and other impurities from entering the device and damaging the blower assembly 4. It also prevents impurities from being blown into other areas underground, causing pollution, thus extending the service life of the device and ensuring a clean ventilation environment. The angle adjustment assembly 10 is installed at the upper end of the base 1 and located at the lower end of the corrugated pipe 7, allowing adjustment of the bending angle of the corrugated pipe 7. This design allows the device to flexibly adjust the direction of air intake and exhaust according to different gas accumulation areas and roadway layouts in the coal mine, making ventilation more targeted, improving ventilation efficiency, better coping with complex underground environments, and enhancing the applicability and practicality of the device.

[0034] In a preferred embodiment of this invention, the blower assembly 4 includes a blower 401 and fixing blocks 402 for fixing the blower 401. The blower 401 is fixedly installed inside the housing 3 by the two fixing blocks 402, and the fixing blocks 402 are fixedly connected to the inner wall of the housing 3. By setting the fixing blocks 402, the blower 401 can be stably installed inside the housing 3, ensuring the stability of the blower 401 during operation.

[0035] In a preferred embodiment of this utility model, the mounting block 8 has an internal mounting groove 11, and the dustproof net 9 is installed in the mounting groove 11. The mounting block 8 has slots 12 on both sides of the mounting groove 11. A limiting block 13 is detachably installed on the mounting block 8 at the mounting groove 11. Each end of the limiting block 13 has a locking block 14. The limiting block 13 is detachably connected to the mounting block 8 via a plug-in assembly 15, which is fixedly installed on the side of the mounting block 8. By providing the mounting groove 11 and the limiting block 13, the installation and fixation of the dustproof net 9 are facilitated. Simultaneously, the detachable connection between the limiting block 13 and the mounting block 8 via the plug-in assembly 15 allows for easy removal of the limiting block 13, thereby facilitating the replacement and cleaning of the dustproof net 9.

[0036] In a preferred embodiment of this utility model, the mounting block 8 has a through hole 16 at its side end located at the insertion assembly 15, and the locking block 14 has an insertion hole 17 at its side end. The insertion assembly 15 includes a connecting plate 151, a pin 152, and a connecting spring 153. The connecting plate 151 is fixedly connected to the mounting block 8 by two connecting springs 153. The pin 152 is fixedly installed on the side end of the connecting plate 151, with the end of the pin 152 away from the connecting plate 151 passing through the through hole 16 and inserting into the insertion hole 17. When it is necessary to remove the limiting block 13, pull the connecting plate 151 to pull the pin 152 out of the insertion hole 17, and the limiting block 13 can be removed. During installation, insert the locking block 14 of the limiting block 13 into the locking slot 12, release the connecting plate 151, and under the action of the connecting spring 153, the pin 152 inserts into the insertion hole 17, thereby fixing the limiting block 13. The operation is simple and convenient.

[0037] In a preferred embodiment of this utility model, the angle adjustment component 10 includes a mounting box 101, a drive motor 102, a threaded rod 103, a moving block 104, a support rod 105, and a connecting component 106. The drive motor 102 is fixedly installed inside the base 1, with its output shaft pointing vertically upwards. The mounting box 101 is fixedly installed on the upper end of the base 1, and is located directly above the drive motor 102. The threaded rod 103 is rotatably installed inside the mounting box 101. One end of the threaded rod 103 is fixedly connected to the output end of the drive motor 102. The moving block 104 is threadedly installed on the side end of the threaded rod 103. One end of the support rod 105 is rotatably connected to the moving block 104 through the connecting component 106, and the other end of the support rod 105 is rotatably connected to the lower end of the mounting block 104 through the connecting component 106. Start the drive motor 102, which drives the threaded rod 103 to rotate, causing the moving block 104 to move on the threaded rod 103, thereby driving the support rod 105 to move. When the support rod 105 moves upward, it will cause the bellows 7 to bend upward, thus causing the mounting block 8 to tilt upward; when the support rod 105 moves downward, it will cause the bellows 7 to bend downward, thus causing the mounting block 8 to tilt downward, thereby adjusting the angle of the mounting block 8, realizing the adjustment of the bending angle of the bellows 7, and changing the ventilation direction.

[0038] In a preferred embodiment of this invention, the connecting assembly 106 includes two connecting blocks 1061 and a connecting shaft 1062, with the connecting shaft 1062 fixedly installed between the two connecting blocks 1061. The connecting assembly 106 enables a rotatable connection between the support rod 105 and the moving block 104 and the mounting block 8, ensuring smooth angle adjustment.

[0039] As a preferred embodiment of this utility model, four self-locking casters 18 are fixedly installed at the lower end of the base 1. The self-locking casters 18 facilitate the movement and fixation of the device, improving the flexibility of the device.

[0040] Working principle and usage process of this utility model:

[0041] First, the blower assembly 4 is the power core of the device. When the device is started, the blower 401 inside the housing 3 begins to work, drawing in outside air through the air inlet 5 and then expelling the air through the air outlet 6, forming airflow and thus reducing the gas concentration. The blower 401 is securely installed inside the housing 3 by the fixing block 402 to ensure its stability during operation, making the ventilation process continuous and stable.

[0042] Secondly, the corrugated pipe 7 serves to connect and conduct air. The corrugated pipe 7 at the air inlet 5 introduces outside air into the housing 3, while the corrugated pipe 7 at the air outlet 6 delivers the air discharged from the housing 3 to a designated area. The angle adjustment component 10 can adjust the bending angle of the corrugated pipe 7 to adapt to different ventilation needs. Specifically, after the drive motor 102 starts, it drives the threaded rod 103 to rotate, causing the moving block 104, which is threaded onto the threaded rod 103, to move. The moving block 104, through the connecting component 106, drives the support rod 105 to rotate, which in turn pushes the mounting block 8 to move. Because the corrugated pipe 7 is flexible, the movement of the mounting block 8 changes the bending angle of the corrugated pipe 7, thereby adjusting the direction of air intake and exhaust, improving the targeting and effectiveness of ventilation.

[0043] In addition, the dustproof net 9 inside the mounting block 8 filters the incoming and outgoing air, preventing dust, impurities, etc. from entering the device or being discharged underground, thus avoiding affecting the operation of the device and the underground environment. The dustproof net 9 adopts a detachable installation method. When cleaning or replacement is required, by operating the plug-in assembly 15, pulling the connecting plate 151, the pin 152 is pulled out from the insertion hole 17 of the locking block 14, and the limiting block 13 can be removed, and the dustproof net 9 can be taken out from the mounting groove 11. The operation is convenient, ensuring the filtration effect of the dustproof net 9, thereby ensuring ventilation efficiency.

[0044] Meanwhile, the self-locking casters 18 at the lower end of the base 1 facilitate the movement of the device to different gas over-limit areas. After moving to the appropriate position, the casters are locked to ensure stable operation of the device, thereby enhancing its flexibility and applicability.

[0045] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims of this utility model.

Claims

1. A coal mine gas over-limit ventilation device, characterized in that, include: A base (1) is provided, and a support column (2) is fixedly installed on the upper end of the base (1). A box (3) is fixedly installed on the upper end of the support column (2). The box (3) is hollow inside. A blower assembly (4) is installed inside the box (3). An air inlet (5) is opened at one end of the box (3), and an air outlet (6) is opened at the other end of the box (3). Corrugated pipes (7) are sealed and connected to both ends of the box (3). One corrugated pipe (7) is installed at the air inlet (5), and the other corrugated pipe (7) is installed at the air outlet (6). An installation block (8) is fixedly installed at the end of the corrugated pipe (7) away from the box (3). A dustproof net (9) is detachably installed inside the installation block (8). An angle adjustment assembly (10) for adjusting the bending angle of the corrugated pipe (7) is installed at the lower end of the two corrugated pipes (7) on the upper end of the base (1).

2. A coal mine gas over-limit ventilation device according to claim 1, characterized in that, The blower assembly (4) includes a blower (401) and a fixing block (402) for fixing the blower (401). The blower (401) is fixedly installed inside the housing (3) by the two fixing blocks (402), and the fixing blocks (402) are fixedly connected to the inner wall of the housing (3).

3. A coal mine gas over-limit ventilation device according to claim 1, characterized in that, The mounting block (8) has an internal mounting groove (11), and the dustproof net (9) is installed in the mounting groove (11). The mounting block (8) has slots (12) on both sides of the mounting groove (11). The mounting block (8) has a detachable limit block (13) installed at the mounting groove (11). The limit block (13) has a locking block (14) at both ends. The limit block (13) is detachably connected to the mounting block (8) through a plug-in component (15). The plug-in component (15) is fixedly installed on the side of the mounting block (8).

4. A coal mine gas over-limit ventilation device according to claim 3, characterized in that, The mounting block (8) has a through hole (16) at the side end of the plug-in assembly (15), and the locking block (14) has a plug hole (17) at the side end. The plug-in assembly (15) includes a connecting plate (151), a pin (152), and a connecting spring (153). The connecting plate (151) is fixedly connected to the mounting block (8) by two connecting springs (153). The pin (152) is fixedly installed on the side end of the connecting plate (151), and the end of the pin (152) away from the connecting plate (151) passes through the through hole (16) and is inserted into the plug hole (17).

5. A coal mine gas over-limit ventilation device according to claim 1, characterized in that, The angle adjustment assembly (10) includes a mounting box (101), a drive motor (102), a threaded rod (103), a moving block (104), a support rod (105), and a connecting assembly (106). The drive motor (102) is fixedly installed inside the base (1), and the output shaft of the drive motor (102) is vertically upward. The mounting box (101) is fixedly installed on the upper end of the base (1), and the mounting box (101) is located directly above the drive motor (102). The threaded rod (103) is rotatably installed inside the mounting box (101). One end of the threaded rod (103) is fixedly connected to the output end of the drive motor (102). The moving block (104) is threadedly installed on the side end of the threaded rod (103). One end of the support rod (105) is rotatably connected to the moving block (104) through the connecting assembly (106), and the other end of the support rod (105) is rotatably connected to the lower end of the mounting block (8) through the connecting assembly (106).

6. A coal mine gas over-limit ventilation device according to claim 5, characterized in that, The connecting assembly (106) includes two connecting blocks (1061) and a connecting shaft (1062), the connecting shaft (1062) being fixedly installed between the two connecting blocks (1061).

7. A coal mine gas over-limit ventilation device according to claim 1, characterized in that, Four self-locking casters (18) are fixedly installed at the lower end of the base (1).

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