Underground air door device capable of being interlocked
By introducing a movable shaft and a winding roller into the downhole ventilation door device, combined with the design of a coil spring, the safety hazard caused by the loosening of the wire rope is solved, and the automatic closing and stable operation of the ventilation door are realized, improving the convenience and safety of operation.
Patent Information
- Application Number
- CN202423191951.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-12-24
AI Technical Summary
During the opening and closing process of existing underground ventilation door devices, the traction and release of the wire rope causes the counterweight to swing, which may cause the slider to disengage from the chute or the wire rope to loosen, posing a safety hazard.
The design employs a movable shaft, a take-up roller, and a coil spring. The take-up roller is driven to rotate via a connecting rope, which automatically closes the damper and prevents both doors from opening simultaneously. The spring then resets the take-up roller to its initial state, improving ease of operation and efficiency.
It enables automatic closing of the damper, avoids airflow short-circuiting affecting airtightness, improves safety and operational stability, reduces operating steps, and improves operating efficiency.
Smart Images
Figure CN223469291U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mine underground ventilation technical field, concretely is a kind of underground interlockable air door device. BACKGROUND
[0002] The known mine air door interlocking device is connected by two steel wires on two air doors, and finally connected by steel wire buckle to form air door interlocking.When one air door is pulled open, the other air door is ensured not to open, so that two air doors are interlocked, wind flow is blocked, and the stability of ventilation system is ensured.
[0003] The existing interlocking air door device includes a bottom plate, a vertical rod is vertically arranged on the top of the bottom plate, a sliding groove is arranged on the vertical rod, two inclined supporting rods are connected to the top of the vertical rod, the two supporting rods form a Y shape with the vertical rod, two fixed pulleys are arranged on the top of the two supporting rods, a movable pulley is arranged below the two fixed pulleys, a steel wire is sequentially passed through the fixed pulley and the movable pulley, a counterweight iron is connected to the bottom of the movable pulley, a sliding block corresponding to the sliding groove is arranged on the counterweight iron, and the sliding block is installed in the sliding groove.
[0004] However, in the actual use process of the above-mentioned air door device, the counterweight iron is connected to the steel wire through the movable pulley and hung on the device, and in the process of opening and closing the air door, the traction and release of the steel wire can cause the counterweight iron to swing, if the swinging amplitude of the counterweight iron is too large, the sliding block can be separated from the sliding groove or the steel wire can be loosened, which can cause the counterweight iron to fall and threaten the safety of personnel and equipment, therefore, we propose a kind of underground interlockable air door device. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a kind of underground interlockable air door device to solve the problems raised in the above background.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of underground interlockable air door device, including walkway, the side wall of the walkway is hinged with air door body, the top end surface of the walkway is fixedly connected with shell, the inside of the shell is provided with interlocking assembly, the interlocking assembly includes:
[0007] Frame body, the frame body is fixedly connected to the top end surface of walkway, the side wall of the frame body is provided with guide rail, the guide rail is movably connected with movable shaft;
[0008] Winding roller, the winding roller is sleeved on the side wall of movable shaft, the side wall of the winding roller is fixedly connected with connecting rope, the side wall of the winding roller is fixedly connected with coil spring.
[0009] Preferably, the top end surface of the walkway is fixedly connected with guide column, the guide column is movably connected with connecting rope, and the guide column guides the connecting rope.
[0010] Preferably, one end of the coil spring away from the winding roller is fixedly connected to the movable shaft, and one end of the connecting rope away from the winding roller is fixedly connected to the side wall of the damper body.
[0011] Preferably, the damper body is provided in two groups, and the two groups of damper bodies are symmetrically arranged at two ends of the walking channel; when one group of damper bodies is in an open state, the other group of damper bodies cannot be opened.
[0012] Preferably, the side wall of the movable shaft is fixedly connected with a mounting frame, the side wall of the mounting frame is fixedly connected with a spring, the top end surface of the walking channel is fixedly connected with a vertical plate, and one end of the spring away from the mounting frame is fixedly connected to the side wall of the vertical plate.
[0013] Preferably, the side wall of the movable shaft is fixedly connected with a square block, and the square block is in sliding connection with the guide rail, so that the movable shaft can only move horizontally and cannot rotate.
[0014] Compared with the prior art, the underground lockable damper device has the following beneficial effects:
[0015] 1. The underground lockable damper device, by arranging the movable shaft, the winding roller and the coil spring, the left damper body is pulled open, the connecting rope is further pulled, the winding roller is driven to rotate by the connecting rope, the coil spring is elastically deformed, the connecting rope pulls the movable shaft to move to the left, the connecting rope connected to the right damper body is unfolded, and the right damper body cannot be pulled open at this time, so that the opening of the two doors is forcibly limited, the airtightness of the damper is avoided to be affected by air flow short circuit, compared with the counterweight block, the device has higher applicability and better running stability, when the pulling force applied to the damper body is stopped, the winding roller is driven to rotate by the elastic deformation of the connecting rope, the connecting rope is wound, the damper body is closed, and the damper is automatically closed without manual intervention, so that the operation convenience and efficiency are improved.
[0016] 2. The underground lockable damper device, by arranging the spring and the vertical plate, after the damper is stopped being used, the spring pulls the winding roller to reset, so that the winding roller is located in the middle of the guide rail, and the whole device is always in a preset initial state, the adjustment step during the next operation is reduced, the operation efficiency is improved, and stress concentration of the coil spring in the offset state is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a schematic diagram of the main body structure of the utility model;
[0018] Figure 2 It is a schematic diagram of the internal structure of the shell of the utility model;
[0019] Figure 3 It is an explosion view of the movable shaft of the utility model;
[0020] Figure 4 The utility model spring structure schematic view.
[0021] In the drawing: 1, walkway, 2, air door body, 3, shell, 4, interlocking assembly, 401, frame body, 402, guide rail, 403, movable shaft, 404, winding roller, 405, connecting rope, 406, coil spring, 5, guide column, 6, mounting bracket, 7, spring, 8, vertical board. DETAILED DESCRIPTION
[0022] As Figures 1-4 shown, the utility model provides a kind of underground interlockable air door device, including walkway 1, the side wall of walkway 1 is hinged with air door body 2, the quantity of air door body 2 is provided with two groups, two groups of air door body 2 are symmetrically arranged at the both ends of walkway 1, one group of air door body 2 opens in state, another group of air door body 2 cannot be opened, the top end surface of walkway 1 is fixedly connected with shell 3, the inside of shell 3 is provided with interlocking assembly 4, and interlocking assembly 4 includes frame body 401, guide rail 402, movable shaft 403, winding roller 404, connecting rope 405 and coil spring 406.
[0023] In an embodiment of the utility model, frame body 401 is fixedly connected at the top end surface of walkway 1, the side wall of frame body 401 is provided with guide rail 402, guide rail 402 is movably connected with movable shaft 403, the side wall of movable shaft 403 is fixedly connected with square block, and square block is slidably connected with guide rail 402, so that movable shaft 403 can only move horizontally, and cannot rotate.
[0024] Winding roller 404 is sleeved on the side wall of movable shaft 403, the side wall of winding roller 404 is fixedly connected with connecting rope 405, one end of connecting rope 405 away from winding roller 404 is fixedly connected on the side wall of air door body 2, the top end surface of walkway 1 is fixedly connected with guide column 5, guide column 5 is movably connected with connecting rope 405, guide column 5 guides connecting rope 405, the side wall of winding roller 404 is fixedly connected with coil spring 406, and one end of coil spring 406 away from winding roller 404 is fixedly connected with movable shaft 403.
[0025] Pull left air door body 2, further pull connecting rope 405, so that connecting rope 405 drives winding roller 404 to rotate, and coil spring 406 elastically deforms, when the pulling force applied to air door body 2 is stopped, then winding roller 404 is driven to rotate by the elastic deformation of connecting rope 405, and air door body 2 is closed, so that air door is automatically closed, without manual intervention, improve the operation convenience and efficiency.
[0026] When the left air door body 2 is pulled open, the connecting rope 405 pulls the movable shaft 403 to move left, the connecting rope 405 connected with the right air door body 2 is unfolded, and the right air door body 2 cannot be pulled open, thereby forcibly limiting the double doors from being opened simultaneously, avoiding the influence of air flow short circuit on the air tightness of the air door, and compared with the counterweight, the air door has higher applicability and better running stability.
[0027] In addition, the side wall of the movable shaft 403 is fixedly connected with the mounting frame 6, the side wall of the mounting frame 6 is fixedly connected with the spring 7, the top end surface of the walking channel 1 is fixedly connected with the vertical plate 8, one end of the spring 7 away from the mounting frame 6 is fixedly connected with the side wall of the vertical plate 8, and the spring 7 pulls the winding roller 404 to reset after the air door is stopped from being used, so that the winding roller 404 is located in the middle of the guide rail 402, the whole device is always in the preset initial state, the adjusting step is reduced when next operation is performed, the operation efficiency is improved, and stress concentration of the winding spring 406 in the deviation state is avoided.
[0028] In the utility model, when in use, the left air door body 2 is pulled open, the connecting rope 405 drives the winding roller 404 to rotate, the connecting rope 405 pulls the movable shaft 403 to move left, the connecting rope 405 connected with the right air door body 2 is unfolded, and the right air door body 2 cannot be pulled open, when the pulling force applied to the air door body 2 is stopped, the winding roller 404 is driven to rotate through the elastic deformation of the connecting rope 405, and the connecting rope 405 is wound.
[0029] The foregoing has made a detailed description on the utility model in general, but some modifications or improvements can be made on the basis of the utility model, which is obvious to the general technical personnel in the technical field. Therefore, the modification or improvement without departing from the spirit and principles of the utility model is within the protection scope of the utility model.
Claims
1. A downhole interlockable damper device, comprising a walkway (1), the side wall of which is hinged with a damper body (2), characterized in that: The top end surface of the walking channel (1) is fixedly connected with a shell (3), the inside of the shell (3) is provided with a interlocking assembly (4), the interlocking assembly (4) comprises: The side wall of the frame body (401) is provided with a guide rail (402), the guide rail (402) is movably connected with a movable shaft (403); The side wall of the winding roller (404) is fixedly connected with a connecting rope (405), the side wall of the winding roller (404) is fixedly connected with a winding spring (406).
2. A downhole interlockable damper device according to claim 1, characterized in that: The top end surface of the walking channel (1) is fixedly connected with a guide column (5), the guide column (5) is movably connected with the connecting rope (405).
3. A downhole interlockable damper device according to claim 1, characterized in that: The end of the winding spring (406) away from the winding roller (404) is fixedly connected with the movable shaft (403), the end of the connecting rope (405) away from the winding roller (404) is fixedly connected with the side wall of the air door body (2).
4. A downhole interlockable damper device according to claim 1, characterized in that: The number of the air door body (2) is provided with two groups, two groups of the air door body (2) are symmetrically arranged at the two ends of the walking channel (1).
5. A downhole interlockable damper device according to claim 1, characterized in that: The side wall of the movable shaft (403) is fixedly connected with a mounting bracket (6), the side wall of the mounting bracket (6) is fixedly connected with a spring (7), the top end surface of the walking channel (1) is fixedly connected with a vertical plate (8), the end of the spring (7) away from the mounting bracket (6) is fixedly connected with the side wall of the vertical plate (8).
6. A downhole interlockable damper device according to claim 1, characterized in that: The side wall of the movable shaft (403) is fixedly connected with a square block, the square block is slidably connected with the guide rail (402).