Lifting type folding air door for mine

Abstract

The utility model provides a mine lifting type folding air door, and belongs to the technical field of mine ventilation. The mine lifting type folding air door comprises a door frame, a folding door plate, a lifting mechanism and a shielding plate. The door frames are arranged on two sides of the folding door plate; the folding door plate comprises an upper door plate, a lower door plate and a folding shaft rod used for connecting the upper door plate and the lower door plate. The folding shaft rod is rotationally connected with the upper door plate and the lower door plate respectively; the lifting mechanism comprises a lifting rope connected with the upper door plate and a lifting device used for driving the lifting rope to be wound and unwound. The shielding plate is connected with the lifting device and used for covering a gap between the lifting device and the upper door plate when the air door is closed. According to the mine lifting type folding air door, through a lifting and folding linkage mechanism and the arrangement of the shielding plate, the operation stability and the sealing performance are guaranteed while the space efficiency of opening and closing of the air door is achieved, and the mine lifting type folding air door has the beneficial effects of being compact in structure, reliable in operation, good in sealing performance and the like.

Description

Technical Field

[0001] This application relates to the field of mine ventilation technology, specifically to a mine lifting folding air door. Background Technology

[0002] Mine ventilation plays a vital role in ensuring the safety and health of underground workers and improving work efficiency. Reasonable ventilation design and management are the foundation of safe production in mines.

[0003] Air doors are crucial control devices for underground airflow, and their structure directly impacts ventilation conditions at the working face. Controlling air doors guides airflow within the mine, ensuring fresh air is effectively delivered to the working face while expelling harmful gases and pollutants, thus optimizing ventilation. Furthermore, adjusting the opening and closing degree of the air doors maintains airflow balance across different areas of the mine, preventing excessively high or low wind speeds.

[0004] However, in areas with large wind pressure differences, it is usually difficult to manually open and close dampers, and frequent opening and closing of dampers can easily lead to damage and deformation. At the same time, traditional dampers still have a large gap when closed, which can cause air leakage and affect the sealing performance of the dampers. Summary of the Invention

[0005] In view of the technical problems existing in the background art, this application provides a mine lifting folding air door. Through the linkage mechanism of lifting and folding, it can achieve high spatial efficiency in opening and closing the air door while ensuring operational stability and sealing performance. It has the advantages of compact structure, reliable operation and good sealing performance.

[0006] This application provides a mine lifting folding air door, including a door frame, a folding door panel, a lifting mechanism, and a shielding plate;

[0007] The door frame is located on both sides of the folding door panel;

[0008] The folding door panel includes an upper door panel, a lower door panel, and a folding shaft for connecting the upper door panel and the lower door panel; the folding shaft is rotatably connected to the upper door panel and the lower door panel respectively;

[0009] The lifting mechanism includes a lifting rope connected to the upper door panel and a lifting device for driving the lifting rope to extend and retract.

[0010] The shield is connected to the lifting device and is used to cover the gap between the lifting device and the upper door panel when the damper is closed.

[0011] In the technical solution of this application embodiment, by setting up a folding door panel and a lifting mechanism, the linkage mechanism between the two can be utilized. When the lifting device in the lifting mechanism lowers the lifting rope, the upper and lower door panels can rotate and fold around the folding shaft, achieving the effect of opening the air door. When the lifting device in the lifting mechanism retracts the lifting rope, it can pull the upper door panel upward, causing the upper and lower door panels to change from a folded state to an unfolded state, achieving the effect of closing the air door. At the same time, the setting of the baffle plate can effectively cover and block the gap between the lifting device and the upper door panel when the air door is closed, thereby effectively improving the air door's sealing performance.

[0012] In some embodiments, a guide rail is provided vertically inside the side wall of the door frame that contacts the folding door panel, and a sliding wheel is connected to the side wall of the folding door panel that contacts the door frame; the sliding wheel is slidably connected to the guide rail.

[0013] In this embodiment, by setting guide rails and sliding wheels, and in conjunction with folding shafts, the folding door panel can move along the guide rails when folding and unfolding, thereby achieving low noise and smoothness in the door movement, making the opening and closing of the door more convenient and smooth.

[0014] In some embodiments, the sliding wheels are symmetrically arranged on both sides of the top of the upper panel.

[0015] In this embodiment, by setting sliding wheels on both sides of the top of the upper door panel, the top of the upper door panel can be easily moved along the guide rail during the raising and lowering process driven by the lifting device, thereby improving the stability of the overall movement process.

[0016] In some embodiments, the sliding wheel is connected to the upper door panel via a connecting shaft.

[0017] In this embodiment, the stability between the sliding wheel and the upper door panel is improved by setting a connecting shaft.

[0018] In some embodiments, fixed pulleys are symmetrically arranged on both sides of the bottom of the lower panel, and the central axis of the fixed pulleys is fixedly arranged at the bottom of the guide rail.

[0019] In this embodiment, by setting a fixed pulley at the bottom of the lower door panel, the bottom position of the lower door panel can be fixed to prevent the bottom of the lower door panel from shifting in the vertical direction, thereby ensuring the accuracy of the overall movement trajectory.

[0020] In some embodiments, the guide rail is a grooved track with a C-shaped cross-section.

[0021] In this embodiment, by setting the guide rail as a grooved track with a C-shaped cross-section, the sliding wheel can be locked inside the guide rail, preventing it from moving in the horizontal direction.

[0022] In some embodiments, the lifting device is an electric device with a braking function.

[0023] In this embodiment, by setting the lifting device as an electric device with braking function, it is easy to control the lifting device and to brake it as needed.

[0024] In some embodiments, the lifting device includes a housing, a roller disposed within the housing, and a drive device for driving the roller to rotate; the lifting rope is wound around the outer wall of the roller.

[0025] In this embodiment, by winding the lifting rope around the outer wall of the drum and setting a drive device to drive the drum, the lifting rope can be efficiently wound and unwound by controlling the rotation of the drum.

[0026] In some embodiments, the upper end of the baffle is connected to the housing, and the lower end of the baffle matches the top of the upper door panel when the damper is closed.

[0027] In this embodiment, by connecting the upper end of the baffle plate to the outer shell and making its lower end match the top of the upper door panel, the gap between the lifting device and the upper door panel can be effectively eliminated when the damper is closed, forming an airtight barrier and effectively improving the sealing performance of the damper.

[0028] In some embodiments, the length of the lifting rope is greater than the height of the door frame.

[0029] In this embodiment, by limiting the length of the lifting rope, it can be ensured that the damper can be fully opened.

[0030] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in this application will be briefly described below. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0032] Figure 1A schematic diagram of the overall front structure of the mine lifting folding air door provided in the embodiment of this application in the open state;

[0033] Figure 2 A schematic diagram of the overall front structure of the mine lifting folding air door provided in the embodiment of this application in the closed state;

[0034] Figure 3 A schematic diagram of the overall rear structure of the mine lifting folding air door provided in the embodiment of this application in the closed state;

[0035] Figure 4 This is a structural schematic diagram of the connection between the door frame and the upper door panel of the mine lifting folding air door provided in the embodiments of this application.

[0036] Explanation of reference numerals in the attached drawings: 1. Door frame; 11. Guide rail; 2. Folding door panel; 21. Upper door panel; 211. Sliding wheel; 212. Connecting shaft; 22. Lower door panel; 23. Folding shaft; 3. Lifting mechanism; 31. Lifting device; 32. Lifting rope; 4. Cover plate. Detailed Implementation

[0037] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0039] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0040] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0041] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0042] To address the technical problems of existing air doors being inconvenient to operate manually and having poor sealing performance, this application provides a mine lifting folding air door. Through the linkage mechanism of lifting and folding and the setting of the baffle plate 4, it achieves efficient spatial operation of the air door while ensuring operational stability and sealing performance. It has the advantages of compact structure, reliable operation, and good sealing performance.

[0043] Please refer to the following: Figure 1-3 This application provides a mine lifting folding air door, including a door frame 1, a folding door panel 2, a lifting mechanism 3, and a shielding plate 4;

[0044] Door frame 1 is provided on both sides of the folding door panel 2;

[0045] The folding door panel 2 includes an upper door panel 21, a lower door panel 22, and a folding shaft 23 for connecting the upper door panel 21 and the lower door panel 22; the folding shaft 23 is rotatably connected to the upper door panel 21 and the lower door panel 22 respectively.

[0046] The lifting mechanism 3 includes a lifting rope 32 connected to the upper door panel 21 and a lifting device 31 for driving the lifting rope 32 to be extended and retracted;

[0047] The baffle 4 is connected to the lifting device 31 and is used to cover the gap between the lifting device 31 and the upper door panel 21 when the damper is closed.

[0048] In the technical solution of this application embodiment, by setting up a folding door panel 2 and a lifting mechanism 3, the linkage mechanism between the two can be utilized. When the lifting device 31 in the lifting mechanism 3 lowers the lifting rope 32, the upper door panel 21 and the lower door panel 22 can rotate and fold around the folding shaft 23, achieving the effect of opening the air door. When the lifting device 31 in the lifting mechanism 3 retracts the lifting rope 32, it can pull the upper door panel 21 upward, causing the upper door panel 21 and the lower door panel 22 to change from a folded state to an unfolded state, achieving the effect of closing the air door. At the same time, the setting of the baffle plate 4 can effectively cover and block the gap between the lifting device 31 and the upper door panel 21 when the air door is closed, thereby effectively improving the air door's sealing performance.

[0049] Furthermore, please refer to the following: Figure 4 In this embodiment, a guide rail 11 is vertically arranged inside the side wall of the door frame 1 that contacts the folding door panel 2, and a sliding wheel 211 is connected to the side wall of the folding door panel 2 that contacts the door frame 1; the sliding wheel 211 is slidably connected to the guide rail 11. The sliding wheels 211 are symmetrically arranged on both sides of the top of the upper door panel 21; the sliding wheels 211 are connected to the upper door panel 21 via a connecting shaft 212. Furthermore, in this embodiment, fixed pulleys are symmetrically arranged on both sides of the bottom of the lower door panel 22, and the fixed pulleys are fixedly arranged at the bottom of the guide rail 11, with the central axis of the fixed pulleys fixedly arranged at the bottom of the guide rail 11.

[0050] In this way, the fixed pulley can fix the bottom position of the lower door panel 22, so that it can only rotate towards the inside or outside of the door and cannot move in the vertical direction, thereby improving the stability of the lower door panel 22 during movement and preventing air leakage caused by the lower door panel 22 being raised. At the same time, the sliding wheels 211 on both sides of the upper door panel 21 can move vertically along the guide rail 11, so that the upper door panel 21 can move downward to open the air door and move upward to close the air door.

[0051] Specifically, with the damper closed, the force of the wind and the weight of the sliding wheel 211 and the upper door panel 21 cause the upper door panel 21 to tend to move downwards. At this time, by controlling the lifting device 31 to lower the lifting rope 32, the upper door panel 21 can move downwards and rotate around the folding shaft 23, simultaneously driving the lower door panel 22 to rotate, causing the upper door panel 21 and the lower door panel 22 to present a downward orientation. Figure 1The folded state shown indicates that the damper can be opened. During the opening process, if the upper door panel 21 does not move downwards after the lifting rope 32 is lowered, gently pushing the folding door panel 2 will allow it to move smoothly; the overall operation is quite simple. When it is necessary to close the damper, the lifting rope 32 is pulled upwards by controlling the lifting device 31, causing the upper door panel 21 to move upwards. This, in turn, drives the top of the lower door panel 22 upwards via the folding shaft 23, causing the upper door panel 21 and lower door panel 22 to fold upwards. Figure 2 The unfolded state shown indicates that the air door can be closed. The lifting and folding linkage mode provided in this embodiment, in coordination with the guide rail 11 and pulley system, achieves low-noise and smooth door movement, making the opening and closing of the air door more convenient and smooth. It allows for easy opening and closing of the air door even in areas with large air pressure differences, and frequent opening and closing will not cause structural deformation. Simultaneously, the door can be folded into a stowage state, effectively saving vertical space. In the fully closed state, the overall air leakage coefficient is low, making it suitable for mine roadways requiring frequent opening and closing and high airtightness requirements. It has significant safety protection performance and is of great importance for improving ventilation in mines.

[0052] Furthermore, in this embodiment, the guide rail 11 is a grooved track with a C-shaped cross-section, so that the sliding wheel 211 is locked inside the guide rail 11 to prevent it from moving in the horizontal direction.

[0053] Furthermore, in this embodiment, the lifting device 31 is an electric device with a braking function, so as to control it and brake it as needed. The structure of the lifting device 31 can be selected as needed. More specifically, in this embodiment, the lifting device 31 includes a housing, a roller disposed within the housing, and a drive device for driving the roller to rotate, with the lifting rope 32 wound around the outer wall of the roller. Based on this lifting device 31, the raising and lowering operation of the lifting rope 32 can be efficiently realized by controlling the rotation direction of the roller.

[0054] Furthermore, in this embodiment, the upper end of the baffle plate 4 is connected to the housing of the lifting device 31, and the lower end of the baffle plate 4 matches the top of the upper door panel 21 when the damper is closed. This arrangement effectively eliminates the gap between the lifting device 31 and the upper door panel 21 when the damper is closed, thereby forming an airtight barrier and effectively improving the damper's sealing performance. More specifically, the connection between the baffle plate 4 and the housing is preferably a detachable connection for easy assembly and disassembly as needed; the material of the baffle plate 4 is preferably rubber to better fit the surfaces of the housing and the upper door panel 21, improving sealing performance.

[0055] Furthermore, in this embodiment, the length of the lifting rope 32 is greater than the height of the door frame 1 to ensure that the damper can be fully opened. More specifically, the lifting rope 32 is preferably made of high-strength wear-resistant steel wire rope to ensure that it can stably and firmly pull the upper door panel 21.

[0056] Please refer to the following: Figures 1 to 4 According to one or more embodiments of this application, the working process of the mine lifting folding air door provided by this application includes:

[0057] When the damper needs to be opened, the lifting device 31 lowers the lifting rope 32, and the sliding wheels 211 on both sides of the upper door panel 21 move downwards along the guide rail 11, causing the top of the upper door panel 21 to descend. This, in turn, drives the folding shaft 23 and the top of the lower door panel 22 to move downwards and outwards, forming... Figure 1 The folded state shown indicates that the damper is fully open.

[0058] When the damper needs to be closed, the lifting device 31 pulls the lifting rope 32 upward, and the sliding wheels 211 on both sides of the upper door panel 21 move upward along the guide rail 11, causing the top of the upper door panel 21 to rise. This, in turn, drives the folding shaft 23 and the top of the lower door panel 22 to move upward and inward, forming... Figure 2-3 The extended state shown indicates that the damper is closed. In this state, the baffle 4 can effectively block the gap between the lifting device 31 and the upper door panel 21 to form an airtight barrier.

[0059] The opening and closing process of the above-mentioned air doors is simple, safe and stable, and can also ensure airtightness when closed. They are suitable for mine roadways that require frequent opening and closing and have high requirements for airtightness.

[0060] In summary, this application provides a mine lifting folding air door, belonging to the field of mine ventilation technology. This mine lifting folding air door includes a door frame 1, a folding door panel 2, a lifting mechanism 3, and a shielding plate 4. The door frame 1 is located on both sides of the folding door panel 2. The folding door panel 2 includes an upper door panel 21, a lower door panel 22, and a folding shaft 23 for connecting the upper door panel 21 and the lower door panel 22. The folding shaft 23 is rotatably connected to both the upper door panel 21 and the lower door panel 22. The lifting mechanism 3 includes a lifting rope 32 connected to the upper door panel 21 and a lifting device 31 for driving the lifting rope 32 to extend and retract. The shielding plate 4 is connected to the lifting device 31 and is used to cover the gap between the lifting device 31 and the upper door panel 21 when the air door is closed. The mine lifting folding air door provided in this application, through the linkage mechanism of lifting and folding and the setting of the shielding plate 4, achieves high spatial efficiency in the opening and closing of the air door while ensuring operational stability and sealing performance, and has advantages such as compact structure, reliable operation, and good sealing performance.

[0061] It should be noted that this application is not limited to the above-described embodiments. The above embodiments are merely examples, and any embodiments with the same structure and effect as the technical concept within the scope of this application are included in the technical scope of this application. Furthermore, various modifications that can be conceived by those skilled in the art to the embodiments, and other ways of constructing by combining some of the constituent elements of the embodiments, without departing from the spirit of this application, are also included in the scope of this application.

Claims

1. A mine shaft lift and fold damper, characterized by, The door frame, the folding door plate, the lifting mechanism and the shielding plate are included. The door frame is arranged on both sides of the folding door plate. The folding door plate includes an upper door plate, a lower door plate and a folding shaft for connecting the upper door plate and the lower door plate. The lifting mechanism includes a lifting rope connected with the upper door plate and a lifting device for driving the lifting rope to be wound or unwound. The shielding plate is connected with the lifting device and is used for covering the gap between the lifting device and the upper door plate in the closed state of the air door.

2. The mine shaft lift and fold damper according to claim 1, characterised in that, The side wall of the door frame in contact with the folding door plate is provided with a guide rail in the vertical direction, and the side wall of the folding door plate in contact with the door frame is connected with a sliding wheel.

3. The mine shaft lift and fold damper according to claim 2, characterised in that, The sliding wheels are symmetrically arranged on both sides of the top of the upper door plate.

4. The mine shaft lift and fold damper of claim 3, wherein, The sliding wheels are connected with the upper door plate through connecting shafts.

5. The mine shaft lift and fold damper of claim 2, wherein, The lower door plate is provided with a fixed pulley on both sides of the bottom.

6. The mine shaft lift and fold damper of claim 2, wherein, The center shaft of the fixed pulley is fixedly arranged on the bottom of the guide rail.

7. The mine shaft lift and fold damper of claim 1 wherein, The guide rail is a groove rail with a C-shaped cross section.

8. The mine shaft lift and fold damper of claim 1, wherein, The lifting device is an electric device with a braking function.

9. The mine shaft lift and fold damper according to claim 8, characterised in that, The lifting device includes a shell, a roller arranged in the shell and a driving device for driving the roller to rotate.

10. The mine shaft elevator folding damper according to claim 1, characterized in that The lifting rope is wound on the outer wall of the roller. The upper end of the shielding plate is connected with the shell, and the lower end of the shielding plate is consistent with the top of the upper door plate in the closed state of the air door. The length of the lifting rope is greater than the height of the door frame.

Images