Mine ventilation duct sealing structure

Abstract

The utility model discloses mine ventilation pipeline sealing structure belongs to ventilation pipe technical field, including ventilation pipe, the flange ring is provided at the port of ventilation pipe, the junction of two ventilation pipes is provided with the connector, the quick -witted connecting mechanism is provided between the connector and ventilation pipe, the middle part of connector is provided with the air volume control mechanism, the utility model discloses the setting of quick -witted connecting mechanism, first through the cooperation of plug and ventilation pipe, realizes the quick connection of ventilation pipe and connector and strengthens the strength of connecting part, utilizes the movement and fixed of locking screw in the movement and fixed of locking screw in the slot, arc slot and positioning groove, can quickly, conveniently connect two ventilation pipes together with connector, realize the anti -disengagement connection between plug and ventilation pipe simultaneously, greatly shorten the installation time, improve the installation efficiency, especially suitable for the operation environment of the urgent construction time requirement of mine.

Description

Technical Field

[0001] This utility model relates to the field of ventilation pipe technology, and in particular to the sealing structure of mine ventilation pipes. Background Technology

[0002] In coal mining and other mining operations, mine ventilation is a crucial link in ensuring operational safety and maintaining normal underground production order. The main function of the mine ventilation system is to provide sufficient fresh air for underground workers, dilute and expel toxic and harmful gases (such as methane, carbon monoxide, etc.) and dust generated underground, regulate underground climate conditions, and create a good working environment. This effectively prevents major disasters such as gas explosions, coal dust explosions, and poisoning and asphyxiation, ensuring safe mine production and the life and health of workers. Currently, mine ventilation systems typically consist of ventilation facilities such as fans, ventilation ducts, air doors, and air bridges. Among them, the performance of ventilation ducts, as the channel for transporting gas, directly affects the ventilation effect. Good ventilation ducts should have sufficient air volume transport capacity, low air resistance, and reliable sealing performance to ensure that the ventilation system can operate stably and efficiently.

[0003] The existing ventilation duct connection components and ventilation ducts have poor sealing at the connection points, which makes them prone to air leakage during later use, reducing the practicality of the ventilation ducts. In addition, the disassembly and maintenance of ventilation ducts is relatively troublesome, which affects the maintenance efficiency of workers.

[0004] An existing patent (publication number: CN223076487U) discloses a ventilation duct sealing structure, comprising a first duct, a second duct on one side of the first duct, an inner sealing sleeve fixedly connected to the inner wall of the first duct, an outer sealing sleeve fixedly connected to the outer wall of the first duct on the side of the inner sealing sleeve, and a second sealing groove and a first sealing groove adapted to the inner and outer sealing sleeves on the inner wall of the second duct. Two L-shaped grooves are symmetrically formed on the outer wall of the first duct, and two inner grooves are symmetrically formed on the inner wall of the second duct. An L-shaped block adapted to the two L-shaped grooves is slidably connected to the outer wall of each inner groove, and a fixing component is provided on the outer wall of the L-shaped block. This utility model can provide multiple seals for the ventilation duct, thereby improving the sealing performance of the ventilation duct, preventing leakage that would affect its practicality, and also enabling quick disassembly and assembly of the ventilation duct, improving the convenience of its maintenance.

[0005] To address the aforementioned issues, existing patents offer solutions, but these solutions suffer from the problem of not being able to quickly lock and connect ventilation ducts. When sealing and connecting existing ventilation ducts, the connection points suffer from slow connection efficiency and the inability to perform anti-detachment pre-connection.

[0006] Therefore, a sealing structure for mine ventilation ducts is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide a sealing structure for mine ventilation ducts, which can solve the problem that existing ventilation duct sealing structures cannot quickly lock and connect ventilation ducts, and that existing duct connections have problems such as slow connection efficiency and inability to perform anti-detachment pre-connection.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a sealing structure for mine ventilation ducts, including a ventilation pipe, a flange ring at the port of the ventilation pipe, a connector at the connection of two ventilation pipes, a quick connection mechanism between the connector and the branch pipe, and an air volume control mechanism in the middle of the connector;

[0009] The quick-connect mechanism includes fixing rings on both sides of the connector, multiple threaded cylinders in the middle of the fixing rings, locking screws in the middle of the threaded cylinders, multiple through slots that move with the locking screws on the side wall of the flange ring, multiple arc-shaped grooves that communicate with the through slots on the side wall of the flange ring, and plugs at both ends of the connector, which are inserted into the ventilation pipe.

[0010] Preferably, the air volume control mechanism includes a control panel disposed in the middle of the connector, the control panel being movably disposed in the middle of the connector, a control rod being disposed in the middle of the control panel, the control rod being rotatably connected to the connector, a connecting ring being disposed at the bottom of the control rod, and a locking component for fixing the control rod being disposed at the bottom of the connector.

[0011] Preferably, the locking assembly includes a connecting seat disposed at the bottom of the connector, a fixing plate disposed at the bottom of the control rod, an arc-shaped motion groove formed on the side wall of the fixing plate, and a locking screw threadedly connected to the bottom of the connecting seat, the locking screw being movably connected to the motion groove.

[0012] Preferably, the flange ring has multiple positioning grooves on its side wall, the positioning grooves are located at the bottom of the arc-shaped groove, and the positioning grooves are adapted to the locking screws.

[0013] Preferably, a sealing groove is provided between the flange ring and the fixing ring, and a sealing gasket is provided inside the sealing groove.

[0014] Preferably, two sealing strips are fitted onto the side wall of the control panel. The sealing strips are arc-shaped, and the side wall of the sealing strips contacts the inner wall of the connector.

[0015] Preferably, the sidewall of the plug is inclined, and a rubber sleeve is provided on the sidewall of the plug.

[0016] Preferably, a lifting frame is provided on the top of the connector, and multiple inserts are provided on the side wall of the connector.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application incorporates a quick-connect mechanism. This mechanism firstly enables the quick connection of the ventilation pipe and the connector by cooperating with the plug, thereby strengthening the connection. By utilizing the movement and fixation of the locking screw within the slot, arc slot, and positioning slot, two ventilation pipes can be quickly and conveniently connected to the connector. Simultaneously, it prevents the plug and ventilation pipe from detaching, greatly shortening the installation time and improving installation efficiency. It is especially suitable for mining operations where time constraints are tight.

[0019] 2. This application incorporates an airflow control mechanism. Through the rotation of the control panel, the airflow within the ventilation duct can be precisely adjusted. This allows for real-time adjustment of the airflow based on the actual ventilation needs of different areas within the mine, enhancing the flexibility and adaptability of the ventilation system. It ensures that each work location receives a suitable airflow supply. The locking component firmly secures the control lever and control panel, preventing movement of the control panel due to vibration or other factors during ventilation system operation, thus preventing any impact on the airflow adjustment effect. This guarantees the stability of the adjusted airflow, enabling the ventilation system to operate continuously and stably. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is an overall structural view of the present invention;

[0022] Figure 2 This is the left view of the present invention;

[0023] Figure 3 This utility model Figure 2 A three-dimensional cross-sectional view of point AA in the middle;

[0024] Figure 4 This is a schematic diagram of the disassembled structure of the quick-connect mechanism in this utility model;

[0025] Figure 5 This is a cross-sectional schematic diagram of the locking component in this utility model;

[0026] Figure 6 This is a schematic diagram of the locking component in this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Ventilation duct; 2. Flange ring; 3. Connector; 4. Quick-connect mechanism; 5. Air volume control mechanism; 41. Fixing ring; 42. Threaded cylinder; 43. Locking screw; 44. Through groove; 45. Arc groove; 46. Plug; 51. Control panel; 52. Control lever; 53. Connecting ring; 54. Locking assembly; 541. Connecting seat; 542. Fixing plate; 543. Moving groove; 544. Locking screw; 6. Positioning groove; 7. Sealing groove; 8. Sealing gasket; 9. Sealing strip; 10. Rubber sleeve; 11. Lifting frame; 12. Insert cylinder. Detailed Implementation

[0029] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1 to 6 This utility model provides a technical solution:

[0031] The sealing structure of the mine ventilation duct includes a ventilation pipe 1, a flange ring 2 at the port of the ventilation pipe 1, a connector 3 at the connection of two ventilation pipes 1, a quick connection mechanism 4 between the connector 3 and the branch pipe, and an air volume control mechanism 5 in the middle of the connector 3.

[0032] The quick-connect mechanism 4 includes a fixing ring 41 on both sides of the connector 3. The fixing ring 41 has multiple threaded cylinders 42 in the middle and a locking screw 43 in the middle. The flange ring 2 has multiple through grooves 44 that move with the locking screw 43 on its side wall. The flange ring 2 has multiple arc-shaped grooves 45 that communicate with the through grooves 44 on its side wall. Both ends of the connector 3 are provided with plugs 46, which are inserted into the ventilation pipe 1.

[0033] Specifically, such as Figure 4 As shown, multiple positioning grooves 6 are provided on the side wall of the flange ring 2. The positioning grooves 6 are located at the bottom of the arc groove 45 and are compatible with the locking screws 43.

[0034] Specifically, such as Figure 3As shown, a sealing groove 7 is provided between the flange ring 2 and the fixed ring 41, and a sealing gasket 8 is provided inside the sealing groove 7.

[0035] Specifically, such as Figure 3 As shown, the side wall of the plug 46 is inclined, and a rubber sleeve 10 is provided on the side wall of the plug 46.

[0036] Specifically, such as Figure 1 As shown, a lifting frame 11 is provided on the top of the connector 3, and multiple inserts 12 are provided on the side wall of the connector 3.

[0037] In use, the two ventilation pipes 1 are connected via connector 3. The plugs 46 at both ends of connector 3 engage with the ventilation pipes 1, achieving a quick and sealed connection. Then, the quick-connect mechanism 4 activates. When the ventilation pipe 1 and connector 3 are aligned, the locking screw 43 passes through the groove 44 on the side wall of the flange ring 2. Next, the connector 3 is rotated, causing the locking screw 43 to enter the arc-shaped groove 45. By rotating the locking screw 43, it moves within the arc-shaped groove 45 and finally engages with the positioning groove 6, tightly connecting the flange ring 2 and the fixing ring 41. This achieves a stable connection between the ventilation pipe 1 and connector 3. Simultaneously, a sealing gasket 8 is installed in the sealing groove 7 between the flange ring 2 and the fixing ring 41 to provide a seal and prevent gas leakage. With the assistance of the insert 12, the user can easily rotate the connector 3 using tools. The lifting frame 11 facilitates easy... The connector 3 is hoisted. Through the quick-connect mechanism 4, the connector 1 and connector 3 are quickly connected and strengthened by the cooperation of the plug 46 with the ventilation pipe 1. The locking screw 43 moves and fixes within the slot 44, arc-shaped slot 45, and positioning slot 6, allowing for quick and convenient connection of the two ventilation pipes 1 and connector 3. Simultaneously, it prevents the plug 46 from detaching from the ventilation pipe 1, significantly shortening installation time and improving efficiency. This is particularly suitable for mining environments where time is of the essence. The sealing gasket 8 between the flange ring 2 and the fixing ring 41, along with the rubber sleeve 10 on the insertion ring, forms a double-sealing structure, effectively preventing gas leakage at the connection of the ventilation pipe 1, ensuring the sealing performance of the ventilation system, reducing energy waste, and lowering the risk of safety accidents caused by air leakage.

[0038] Specifically, such as Figure 3 As shown, the air volume control mechanism 5 includes a control panel 51 located in the middle of the connector 3. The control panel 51 is movably located in the middle of the connector 3. A control rod 52 is located in the middle of the control panel 51. The control rod 52 is rotatably connected to the connector 3. A connecting ring 53 is located at the bottom of the control rod 52. A locking component 54 for fixing the control rod 52 is located at the bottom of the connector 3.

[0039] Specifically, such as Figure 5 and Figure 6 As shown, the locking assembly 54 includes a connecting seat 541 disposed at the bottom of the connector 3, a fixing plate 542 disposed at the bottom of the control rod 52, an arc-shaped motion groove 543 provided on the side wall of the fixing plate 542, and a locking screw 544 threadedly connected to the bottom of the connecting seat 541, the locking screw 544 being movably connected to the motion groove 543.

[0040] Specifically, such as Figure 3 As shown, two sealing strips 9 are fitted onto the side wall of the control panel 51. The sealing strips 9 are arc-shaped, and the side wall of the sealing strips 9 contacts the inner wall of the connector 3.

[0041] In use, the core of the airflow control mechanism 5 is the control panel 51. The control panel 51 is rotatably connected to the connector 3 via the control rod 52. Rotating the control rod 52 causes the control panel 51 to rotate in the middle of the connector 3, thereby changing the size of the ventilation cross section inside the connector 3 and adjusting the airflow. The locking component 54 is used to fix the position of the control rod 52. The locking screw 544 on the connector 541 is movably connected to the motion groove 543 on the bottom fixing plate 542 of the control rod 52. When the control panel 51 rotates to the desired position, tighten the locking screw 544 to fix it in the motion groove 543, thereby fixing the control rod 52 and the control panel 51 and ensuring the stability after airflow adjustment. The setting of 9 can improve the sealing effect between the control panel 51 and the connector 3. Thus, by setting the air volume control mechanism 5 and rotating the control panel 51, the air volume in the ventilation pipe 1 can be precisely adjusted. The air volume can be adjusted in real time according to the actual ventilation needs of different areas of the mine, which improves the flexibility and adaptability of the ventilation system and ensures that each work location can obtain a suitable air volume supply. The locking component 54 can firmly fix the position of the control rod 52 and the control panel 51, avoiding the movement of the control panel 51 due to vibration and other factors during the operation of the ventilation system, which would affect the air volume adjustment effect. This ensures the stability of the air volume after adjustment and enables the ventilation system to operate continuously and stably.

[0042] By adopting the above technical solution, the problem that the existing ventilation duct sealing structure cannot quickly lock and connect the ventilation duct is solved, and the existing pipe connection has the problems of slow connection efficiency and inability to perform anti-detachment pre-connection.

[0043] Working principle: In use, the two ventilation pipes 1 are first connected by connector 3. The plugs 46 at both ends of connector 3 are inserted into the ventilation pipes 1 to achieve a quick and sealed connection between the ventilation pipes 1 and connector 3. Then, the quick connection mechanism 4 is activated. When the ventilation pipes 1 and connector 3 are connected, the locking screw 43 passes through the groove 44 on the side wall of the flange ring 2. Then, the connector 3 is rotated, so that the locking screw 43 enters the arc groove 45. By rotating the locking screw 43, it moves within the arc groove 45 and finally engages with the positioning groove 6, tightly connecting the flange ring 2 and the fixing ring 41, thereby achieving a quick and sealed connection between the ventilation pipes 1 and 2. The control panel 51 is securely connected to the connector 3 via the control rod 52. Rotating the control rod 52 causes the control panel 51 to rotate in the middle of the connector 3, thereby changing the size of the ventilation cross section inside the connector 3 and adjusting the air volume. The locking component 54 is used to fix the position of the control rod 52. The locking screw 544 on the connector 541 is movably connected to the motion groove 543 on the bottom fixing plate 542 of the control rod 52. When the control panel 51 is rotated to the desired position, the locking screw 544 is tightened to fix it in the motion groove 543, thereby fixing the control rod 52 and the control panel 51.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sealing structure for mine ventilation ducts, comprising a ventilation duct (1), characterized in that: A flange ring (2) is provided at the port of the ventilation pipe (1), a connector (3) is provided at the connection of the two ventilation pipes (1), a quick connection mechanism (4) is provided between the connector (3) and the branch pipe, and an air volume control mechanism (5) is provided in the middle of the connector (3). The quick connection mechanism (4) includes a fixing ring (41) on both sides of the connector (3). The fixing ring (41) has a plurality of threaded cylinders (42) in the middle. The threaded cylinders (42) have a locking screw (43) in the middle. The flange ring (2) has a plurality of through grooves (44) that move with the locking screws (43) on its side wall. The flange ring (2) has a plurality of arc-shaped grooves (45) that communicate with the through grooves (44) on its side wall. The connector (3) has a plug (46) at both ends. The plug (46) is inserted into the ventilation pipe (1).

2. The sealing structure for mine ventilation ducts according to claim 1, characterized in that: The air volume control mechanism (5) includes a control panel (51) disposed in the middle of the connector (3). The control panel (51) is movably disposed in the middle of the connector (3). A control rod (52) is disposed in the middle of the control panel (51). The control rod (52) is rotatably connected to the connector (3). A connecting ring (53) is disposed at the bottom of the control rod (52). A locking component (54) for fixing the control rod (52) is disposed at the bottom of the connector (3).

3. The sealing structure for mine ventilation ducts according to claim 2, characterized in that: The locking assembly (54) includes a connecting seat (541) disposed at the bottom of the connector (3), a fixing plate (542) disposed at the bottom of the control rod (52), an arc-shaped motion groove (543) being provided on the side wall of the fixing plate (542), and a locking screw (544) being threadedly connected to the bottom of the connecting seat (541), and the locking screw (544) being movably connected to the motion groove (543).

4. The sealing structure for mine ventilation ducts according to claim 1, characterized in that: The flange ring (2) has multiple positioning grooves (6) on its side wall. The positioning grooves (6) are located at the bottom of the arc groove (45) and are compatible with the locking screws (43).

5. The sealing structure for mine ventilation ducts according to claim 1, characterized in that: A sealing groove (7) is provided between the flange ring (2) and the fixing ring (41), and a sealing gasket (8) is provided inside the sealing groove (7).

6. The sealing structure for mine ventilation ducts according to claim 2, characterized in that: Two sealing strips (9) are fitted on the side wall of the control panel (51). The sealing strips (9) are arc-shaped and the side wall of the sealing strips (9) contacts the inner wall of the connector (3).

7. The sealing structure for mine ventilation ducts according to claim 1, characterized in that: The sidewall of the plug (46) is inclined, and a rubber sleeve (10) is provided on the sidewall of the plug (46).

8. The sealing structure for mine ventilation ducts according to claim 1, characterized in that: The top of the connector (3) is provided with a lifting frame (11), and multiple inserts (12) are provided on the side wall of the connector (3).

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