Pressure relief air window for coal mining working face of coal mine
By using pressure sensors and electromagnet locking components in the pressure relief vent, real-time automatic adjustment of coal mining conditions is achieved, solving the problems of low adjustment accuracy and slow response speed of traditional pressure relief vents, and improving the safety and stability of the ventilation system.
Patent Information
- Application Number
- CN202422983603.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-04
AI Technical Summary
Traditional pressure relief ventilation windows have low adjustment precision and slow response speed, and cannot automatically adjust in real time according to complex and ever-changing coal mining conditions, resulting in poor ventilation and safety hazards.
The locking assembly uses a pressure sensor and an electromagnet inside the window frame. The pressure sensor detects changes in wind pressure and controls the electromagnet to be energized instantaneously to unlock the window slats, thus achieving rapid automatic adjustment.
It enables real-time automatic adjustment based on coal mining conditions, improving adjustment accuracy and response speed, and ensuring the safety and stability of the ventilation system.
Smart Images
Figure CN223676318U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of air window for coal mine, concretely is a kind of coal mining working face pressure-relief air window. BACKGROUND
[0002] In the ventilation system of coal mining working face, pressure-relief air window plays the key role of adjusting air pressure, air volume, guaranteeing ventilation safety and stability.The traditional pressure-relief air window is mostly manually adjusted or simply mechanically structured control, there is low adjustment precision, slow response speed, cannot be automatically adjusted in real time according to complex and changeable coal mining conditions and other defects.For example, when the gas emission of coal mining working face suddenly changes, roof collapse affects ventilation roadway structure and other situations, traditional pressure-relief air window is difficult to make adaptive adjustment quickly, possibly lead to poor ventilation, gas accumulation and other safety hazards, seriously threaten the smooth progress of coal mining operation and personnel's life safety.
[0003] Therefore, the utility model designs a kind of coal mining working face pressure-relief air window, solves the technical problems existing in prior art. INVENTION CONTENTS
[0004] In view of the deficiencies in the prior art, the utility model aims at providing a kind of coal mining working face pressure-relief air window, solves the technical problems of traditional pressure-relief air window, which is mostly manually adjusted or simply mechanically structured control, with low adjustment precision, slow response speed and inability to automatically adjust in real time according to complex and changeable coal mining conditions.
[0005] The utility model adopts the scheme: a kind of coal mining working face pressure-relief air window, including window frame, characterized by: the window frame is provided with two groups of installation grooves, two groups of the installation groove are slidably connected with installation block, the installation block is equipped with a plurality of pressure sensors and buffer springs between installation groove;
[0006] Two groups of the installation block are all hinged with first window leaf and second window leaf, the first window leaf is all equipped with with the first cooperation slot of second window leaf, the second window leaf is equipped with the second cooperation slot corresponding with first window leaf, the first window leaf and second window leaf are equipped with locking assembly between, the pressure sensor is electrically connected between controller.
[0007] Preferably, the locking assembly includes positioning hole in the first cooperation slot and the second cooperation slot, the first window leaf and the second window leaf are both equipped with sliding groove corresponding with positioning hole, the sliding groove is slidably connected with positioning block, the sliding groove is equipped with electromagnet, the rear end of the positioning block is equipped with armature matched with electromagnet, the armature and electromagnet are equipped with return spring, the electromagnet and controller are electrically connected.
[0008] Preferably, the first matching groove and the second matching groove are provided with sealing pads on the inner walls.
[0009] Preferably, the mounting block and the mounting groove are provided with a telescopic sleeve.
[0010] Preferably, the window frame is provided with a fixed rib plate at each end.
[0011] Additional aspects and advantages of the present application will be made apparent by the following description and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 is one of the perspective views of the utility model.
[0013] Figure 2 is one of the perspective views of the utility model.
[0014] Figure 3 is Figure 2 the A partial enlarged view of figure
[0015] Figure 4 is the second perspective view of the utility model.
[0016] Figure 5 is Figure 4 the B partial enlarged view of figure
[0017] Figure 6 is the schematic view of the locking assembly of the utility model.
[0018] Figure 7 is Figure 6 the C partial enlarged view of figure
[0019] Reference signs: 1, window frame; 2, mounting groove; 3, mounting block; 4, pressure sensor; 5, buffer spring; 6, first window leaf; 7, second window leaf; 8, first matching groove; 9, second matching groove; 10, positioning hole; 11, sliding groove; 12, positioning block; 13, electromagnet; 14, armature; 15, return spring; 16, telescopic sleeve; 17, fixed rib plate. DETAILED DESCRIPTION
[0020] The foregoing and other technical contents, features and effects of the utility model will be clearly presented in the following detailed description of the embodiments. Figures 1-7 The structural contents mentioned in the following embodiments are all referenced to the drawings.
[0021] The exemplary embodiments of the utility model will be described below with reference to the drawings.
[0022] The embodiment 1 discloses a pressure relief air window of a coal mining face of a coal mine, comprising a window frame 1, characterized in that: the window frame 1 is provided with two groups of mounting grooves 2, two groups of the mounting grooves 2 are slidably connected with mounting blocks 3, and a plurality of pressure sensors 4 and buffer springs 5 are arranged between the mounting blocks 3 and the mounting grooves 2.
[0023] First window leaves 6 and second window leaves 7 are hingedly connected to the two groups of the mounting blocks 3, the first window leaves 6 are each provided with first matching grooves 8 matched with the second window leaves 7, the second window leaves 7 are each provided with second matching grooves 9 matched with the first window leaves 6, locking assemblies are arranged between the first window leaves 6 and the second window leaves 7, and the pressure sensors 4 are electrically connected with a controller.
[0024] As an optional solution of the embodiment 1, the locking assemblies comprise positioning holes 10 arranged in the first matching grooves 8 and the second matching grooves 9, the first window leaves 6 and the second window leaves 7 are each provided with sliding grooves 11 matched with the positioning holes 10, positioning blocks 12 are slidably connected in the sliding grooves 11, electromagnets 13 are arranged in the sliding grooves 11, the rear ends of the positioning blocks 12 are provided with armatures 14 matched with the electromagnets 13, reset springs 15 are arranged between the armatures 14 and the electromagnets 13, and the electromagnets 13 are electrically connected with the controller.
[0025] As an optional solution of the embodiment 1, the inner walls of the first matching grooves 8 and the second matching grooves 9 are each provided with a sealing gasket.
[0026] As an optional solution of the embodiment 1, the mounting blocks 3 and the mounting grooves 2 are provided with telescopic sleeves 16.
[0027] As an optional solution of the embodiment 1, the window frame 1 is provided with fixed rib plates 17 at two ends.
[0028] In actual application, when the roof of a goaf of a coal mining face collapses, a high-pressure airflow is formed, the high-pressure airflow acts on the first window leaves 6 and the second window leaves 7, drives the mounting blocks 3 to move along the mounting grooves 2 and overcome the elastic force of the reset springs 15, the pressure sensors 4 can detect the force acting on the inner end faces of the first window leaves 6 and the second window leaves 7 by the high-pressure airflow, and the pressure sensors 4 are matched with the controller, when the pressure reaches a preset value, the electromagnets 13 are electrified to generate a magnetic force, the positioning blocks 12 are attracted, the positioning blocks 12 are separated from the positioning holes 10, at this moment, the first window leaves 6 are opened first, then the second window leaves 7 are opened under the action of the internal pressure, and the ventilation function is realized.
[0029] If the internal pressure is stable, the first window leaf 6 and the second window leaf 7 are reset, the second window leaf 7 is reset, then the first window leaf 6 is moved, a first matching groove 8 is formed at the bottom of the first window leaf 6, a second matching groove 9 is formed at the top of the second window leaf 7, the extended part of the first window leaf 6 corresponds to the second matching groove 9, and the extended part of the second window leaf 7 corresponds to the first matching groove 8, so that the sealing performance is further improved;
[0030] The pressure sensor 4 can detect the force acting on the first window leaf 6 and the second window leaf 7, if the force reaches the setting, the controller makes the electromagnet 13 be powered, generates magnetism, unlocks the locking assembly of the first window leaf 6 and the second window leaf 7, and the first window leaf 6 and the second window leaf 7 are immediately opened to realize ventilation, and the response is fast.
[0031] The above is only for describing the utility model, and it should be understood that the utility model is not limited to the above examples, and various modifications in line with the utility model idea are within the protection scope of the utility model.
Claims
1. A pressure relief ventilation window for a coal mining face, comprising a window frame (1), characterized in that: The window frame (1) is provided with two sets of mounting slots (2), and mounting blocks (3) are slidably connected in the two sets of mounting slots (2). Several pressure sensors (4) and buffer springs (5) are provided between the mounting blocks (3) and the mounting slots (2). Both sets of mounting blocks (3) are hinged with a first window leaf (6) and a second window leaf (7). The first window leaf (6) is provided with a first mating groove (8) corresponding to the second window leaf (7). The second window leaf (7) is provided with a second mating groove (9) corresponding to the first window leaf (6). A locking assembly is provided between the first window leaf (6) and the second window leaf (7). The pressure sensor (4) is electrically connected to the controller.
2. The pressure relief ventilation window for a coal mining face according to claim 1, characterized in that, The locking assembly includes a positioning hole (10) provided in the first mating groove (8) and the second mating groove (9). The first window leaf (6) and the second window leaf (7) are each provided with a sliding groove (11) corresponding to the positioning hole (10). A positioning block (12) is slidably connected in the sliding groove (11). An electromagnet (13) is provided in the sliding groove (11). An armature (14) that cooperates with the electromagnet (13) is provided at the rear end of the positioning block (12). A reset spring (15) is provided between the armature (14) and the electromagnet (13). The electromagnet (13) is electrically connected to the controller.
3. A pressure relief ventilation window for a coal mining face according to claim 1, characterized in that, Both the inner walls of the first mating groove (8) and the second mating groove (9) are provided with sealing gaskets.
4. A pressure relief ventilation window for a coal mining face according to claim 1, characterized in that, A retractable sleeve (16) is provided between the mounting block (3) and the mounting groove (2).
5. A pressure relief ventilation window for a coal mining face according to any one of claims 1-4, characterized in that, The window frame (1) is provided with fixed ribs (17) at both ends.