An automatic underground mine air lock

Abstract

The utility model discloses an underground mine automatic locking air door relates to mine locking air door technical field, including movable door, the movable door's outside hinged door frame, the movable door's inside hinged emergency door, the movable door's inside swing joint has the moving link, one end fixedly connected with the baffle of moving link, the one side of emergency door is equipped with fixed slot, the one side of fixed slot is connected with the baffle of sliding, the upper portion of movable door is provided with linkage frame. The utility model discloses through the setting of movable slot, baffle, fixed slot, moving link, has corresponded the effect that emergency door closes and opens, through the cooperation setting of transparent warning board, observation slot and moving link, can prevent the false touch of moving link blocking in the process of using, and the state of emergency door is observed, thereby played the role of corresponding emergency situation convenient for through personnel, reached the purpose that the air door setting is convenient for opening emergency escape structure.

Description

Technical Field

[0001] This utility model relates to the field of mine interlocking air doors, specifically an automatic interlocking air door for underground mines. Background Technology

[0002] Automatic interlocking air doors in underground mines are intelligent facilities installed in the ventilation system of underground metal mines. They automatically detect the passage of vehicles or personnel through sensors and control the opening and closing of the air doors to ensure that the air doors are always closed when no one or vehicles are passing through. This effectively maintains the stability of airflow in the underground ventilation system, prevents airflow short circuits, and ensures the supply of fresh air and safe production in the work area.

[0003] Currently, existing automatic interlocking airlocks in underground mines are typically closed under normal conditions to block airflow and maintain the stable operation of the pre-set ventilation network. When passage is needed, they are sensed and automatically opened, and then quickly and automatically closed again after personnel or vehicles are allowed to pass. However, in underground metal mines, emergencies such as fires and explosions are common. Unstable power supply or damage to the automatic opening structure can prevent the airlock from opening properly, blocking critical escape routes and rescue passages, leading to catastrophic consequences. This indicates a lack of emergency escape mechanisms. Furthermore, when the electric actuator malfunctions, it must be disassembled and repaired. To prevent the airlock from being open for extended periods, the connecting structure of the electric actuator must be quickly disassembled, which takes a long time and affects the use of the ventilation system. This also indicates that the electric actuator cannot be easily disassembled and reassembled. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides an automatic locking air door for underground mines, which solves the problems mentioned in the background section.

[0005] (II) Technical Solution To achieve the above objectives, this utility model is implemented through the following technical solution: It includes a movable door, with a door frame hinged to the outer side of the movable door, an emergency door hinged to the inner side of the movable door, a moving rod rotatably connected to the inner side of the movable door, a baffle fixedly connected to one end of the moving rod, a fixed groove on one side of the emergency door, a baffle slidably connected to one side of the fixed groove, a linkage frame at the upper part of the movable door, a connecting rod fixedly connected to the upper part of the linkage frame, a connecting sleeve sleeved on the outer side of the connecting rod, a fixed sleeve sleeved on the upper part of the connecting rod, an insert rod slidably connected inside the fixed sleeve, an insertion hole on one side of the connecting rod, the inner side of the insert rod being inserted into the insertion hole, and the fixed sleeve being connected to an electric push rod.

[0006] Optionally, the movable door has a movable groove inside, which corresponds to the fixed groove, and the baffle slides inside the movable groove.

[0007] Optionally, the outer end of the movable rod is located within the groove of the movable door, and a transparent warning plate is provided within the groove of the movable door to block the movable rod.

[0008] Optionally, the outer end of the movable rod is provided with an observation slot, and an indicator plate is provided in the groove of the movable door, with the observation slot corresponding to the indicator plate.

[0009] Optionally, a limiting groove is provided on one side of the connecting rod, the limiting groove is connected to a limiting block inside the fixed sleeve, and the lower part of the connecting sleeve abuts against the fixed sleeve.

[0010] Optionally, a connecting rod is also fixedly connected to the upper part of the door frame. The connecting rod is connected to the internal bearing of the connecting sleeve, and a connecting sleeve is provided at the movable end and the fixed end of the electric push rod.

[0011] This utility model provides an automatic locking air door for underground mines, which has the following advantages: 1. This underground mine automatic locking air door, through the setting of movable groove, baffle, fixed groove and moving rod, has the effect of closing and opening the emergency door. Through the coordinated setting of transparent warning plate, observation groove and moving rod, the moving rod can be blocked to prevent accidental contact during use, and the status of the emergency door can be observed. Thus, it plays a role in facilitating the passage of personnel in response to emergencies, and achieves the purpose of setting the air door to facilitate opening and emergency escape structure.

[0012] 2. The automatic locking air door in this underground mine, through the setting of the fixed sleeve and the limiting groove, has the effect of connecting and limiting the connection with the connecting rod. Through the cooperation of the insertion rod, insertion hole, connecting rod, connecting sleeve and fixed sleeve, the electric push rod can be easily disassembled and assembled during use, thus achieving the purpose of convenient disassembly and assembly of the electric push rod by shortening the maintenance and replacement time. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the cross-section of the electric push rod fixing structure of this utility model; Figure 3 This utility model Figure 2 A magnified structural diagram of part A in the middle; Figure 4 This is a structural schematic diagram of the cross-section of the emergency door fixing structure of this utility model; Figure 5 This is a structural schematic diagram of the second cross-section of the emergency door fixing structure of this utility model.

[0014] In the diagram: 1. Movable door; 2. Door frame; 3. Electric push rod; 4. Insert rod; 5. Fixing sleeve; 6. Connecting sleeve; 7. Linkage frame; 8. Emergency door; 9. Transparent warning panel; 10. Connecting rod; 11. Limiting groove; 12. Insertion hole; 13. Baffle; 14. Observation slot; 15. Moving rod; 16. Movable groove; 17. Fixing groove. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0016] Please see Figures 1 to 5 This utility model provides a technical solution including a movable door 1, a door frame 2 hinged to the outside of the movable door 1, an emergency door 8 hinged to the inside of the movable door 1, a moving rod 15 rotatably connected inside the movable door 1, a baffle 13 fixedly connected to one end of the moving rod 15, a fixing groove 17 opened on one side of the emergency door 8, a baffle 13 slidably connected to one side of the fixing groove 17, a linkage frame 7 provided on the upper part of the movable door 1, a connecting rod 10 fixedly connected to the upper part of the linkage frame 7, a connecting sleeve 6 sleeved on the outside of the connecting rod 10, a fixing sleeve 5 sleeved on the upper part of the connecting rod 10, an insert rod 4 slidably connected inside the fixing sleeve 5, an insertion hole 12 opened on one side of the connecting rod 10, the inner side of the insert rod 4 inserted into the insertion hole 12, and the connecting sleeve 6 connected to an electric push rod 3.

[0017] Please refer to Figure 1. Figures 4 to 5 The movable door 1 has a movable groove 16 inside, which corresponds to the fixed groove 17. The baffle 13 slides inside the movable groove 16.

[0018] Specifically, the movable groove 16 and the fixed groove 17 are joined together to form a semi-circular groove with a diameter that matches the thickness of the baffle 13. The baffle 13 can rotate around the axis of the movable rod 15 within the semi-circular groove.

[0019] Please refer to Figure 1. Figures 4 to 5 The outer end of the movable rod 15 is located in the groove of the movable door 1. A transparent warning plate 9 is provided in the groove of the movable door 1, which blocks the movable rod 15.

[0020] Specifically, the transparent warning panel 9 prevents the moving rod 15 from being accidentally touched. The transparent warning panel 9 is designed to be detachable and can be directly destroyed in an emergency.

[0021] Please refer to Figure 1. Figures 4 to 5An observation slot 14 is provided at the outer end of the moving rod 15, and an indicator plate is provided in the groove of the movable door 1. The observation slot 14 corresponds to the indicator plate.

[0022] Specifically, the indicator panels are located on both sides of the movable lever 15, and the indicator panels are set to open and closed respectively. By observing the status of the indicator panels corresponding to the observation slot 14, the status of the emergency door 8 can be viewed.

[0023] Please refer to Figure 1 to Figure 3 A limiting groove 11 is provided on one side of the connecting rod 10. The limiting groove 11 is connected to the limiting block inside the fixed sleeve 5. The lower part of the connecting sleeve 6 abuts against the fixed sleeve 5.

[0024] Specifically, the limiting groove 11 is connected to the limiting block of the fixed sleeve 5 to prevent the fixed sleeve 5 from rotating and to facilitate the alignment of the insertion rod 4 with the insertion hole 12.

[0025] Please refer to Figure 1 to Figure 3 A connecting rod 10 is also fixedly connected to the upper part of the door frame 2. The connecting rod 10 is connected to the internal bearing of the connecting sleeve 6. A connecting sleeve 6 is provided at the movable end and the fixed end of the electric push rod 3 respectively.

[0026] Specifically, the connecting sleeve 6 at the movable end is connected to the connecting rod 10 on the linkage frame 7, and the connecting sleeve 6 at the fixed end is connected to the connecting rod 10 on the upper part of the door frame 2.

[0027] In case of an emergency and the door cannot be opened normally, rotating the movable rod 15 causes the baffle 13 inside the fixed slot 17 to rotate with the movable rod 15, moving the baffle 13 into the movable slot 16. This allows the emergency door 8 to open and be used for passage. The movable slot 16, baffle 13, fixed slot 17, and movable rod 15 together provide the function of closing and opening the emergency door 8. Normally, the transparent warning plate 9 blocks the movable rod 15 to prevent accidental activation. In use, the transparent warning plate 9 can be removed or destroyed to rotate the internal movable rod 15. One side of the movable rod 15 has an observation slot 14 corresponding to the indicator plate, allowing users to check the current open or closed state of the emergency door 8. The coordinated arrangement of the transparent warning plate 9, observation slot 14, and movable rod 15 during use prevents accidental activation of the movable rod 15 and allows observation of the emergency door 8's status, thus facilitating passage in emergencies and achieving the purpose of an easily accessible emergency escape structure.

[0028] When the electric actuator 3 needs to be disassembled for maintenance, the fixing sleeve 5 is removed, and then the electric actuator 3 is lifted upwards, separating the connecting sleeve 6 from the connecting rod 10. During installation, after connecting the connecting sleeve 6 to the connecting rod 10, the fixing sleeve 5 is placed on the connecting rod 10. The limiting block inside the fixing sleeve 5 corresponds to the limiting groove 11 of the connecting rod 10, preventing the fixing sleeve 5 from rotating. The fixing sleeve 5 and the limiting groove 11 provide a limiting connection with the connecting rod 10. During fixing, the insert rod 4 is inserted into the corresponding insertion hole 12 via a return spring, fixing the fixing sleeve 5 to the connecting rod 10, and the limiting groove 11 aligns the insert rod 4 with the insertion hole 12. The coordinated design of the insert rod 4, insertion hole 12, connecting rod 10, connecting sleeve 6, and fixing sleeve 5 facilitates the disassembly and assembly of the electric actuator 3 during use, thus shortening maintenance and replacement time and achieving the goal of convenient disassembly and assembly of the electric actuator 3.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic locking air door for underground mines, comprising a movable door (1), characterized in that: The movable door is hinged to a door frame on its outer side, and an emergency door is hinged to its inner side. A moving rod is rotatably connected to the inner side of the movable door, and a baffle is fixedly connected to one end of the moving rod. A fixing groove is provided on one side of the emergency door, and a baffle is slidably connected to one side of the fixing groove. A linkage frame is provided on the upper part of the movable door, and a connecting rod is fixedly connected to the upper part of the linkage frame. A connecting sleeve is sleeved on the outer side of the connecting rod, and a fixing sleeve is sleeved on the upper part of the connecting rod. An insert rod is slidably connected inside the fixing sleeve. An insertion hole is provided on one side of the connecting rod, and the inner side of the insert rod is inserted into the insertion hole. The fixing sleeve is connected to an electric push rod.

2. The automatic interlocking air door for underground mines according to claim 1, characterized in that: The movable door has a movable groove inside, which corresponds to the fixed groove, and the baffle slides inside the movable groove.

3. The automatic interlocking air door for underground mines according to claim 1, characterized in that: The outer end of the movable rod is located in the groove of the movable door, and a transparent warning plate is provided in the groove of the movable door to block the movable rod.

4. The automatic interlocking air door for underground mines according to claim 1, characterized in that: An observation slot is provided at the outer end of the movable rod, and an indicator plate is provided in the groove of the movable door. The observation slot corresponds to the indicator plate.

5. The automatic interlocking air door for underground mines according to claim 1, characterized in that: A limiting groove is provided on one side of the connecting rod, and the limiting groove is connected to a limiting block inside the fixed sleeve. The lower part of the connecting sleeve abuts against the fixed sleeve.

6. The automatic interlocking air door for underground mines according to claim 1, characterized in that: A connecting rod is also fixedly connected to the upper part of the door frame. The connecting rod is connected to the internal bearing of the connecting sleeve. A connecting sleeve is provided at the movable end and the fixed end of the electric push rod.

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