A securely connected explosion relief door specifically for mining electromechanical systems.

Abstract

This invention discloses a securely connected explosion relief door for mining machinery and equipment, relating to the field of explosion relief door technology. It includes a door frame with two explosion relief door bodies symmetrically and rotatably connected between the inner walls of the frame. A movable door body is rotatably connected to one side of each explosion relief door body via a hinge. In this securely connected explosion relief door for mining machinery and equipment, after the cylinder body is activated and retracts, it works in conjunction with a connecting plate to move the movable rack downwards. All the rotating gears rotate synchronously, causing the rotating bolt to rotate into the movable groove inside the movable door body. At this point, the movable door body and the explosion relief door body are only connected by a hinge. Upon impact, the hinge bends, improving the explosion relief effect. When the door cannot withstand the pressure of an explosion, the hinge breaks, thus greatly ensuring the integrity of the explosion relief door body and the movable door body. Only the hinge needs to be replaced for reuse, saving costs and reducing economic losses.

Description

Technical Field

[0001] This invention relates to the field of explosion relief door technology, specifically to a securely connected explosion relief door for mining electromechanical applications. Background Technology

[0002] Explosion relief doors for mining machinery and electrical systems are used when an explosion or fire occurs in a relatively enclosed space or fire zone, causing a rapid increase in gas explosion pressure. The explosion relief door opens the window and releases pressure through explosion relief accessories or electrical devices to control the explosion or minimize the damage. Explosion relief doors have a wide range of applications and are also used in the mining machinery and electrical industry.

[0003] In the prior art, such as Chinese Patent No. CN111075506A, a securely connected explosion relief door for mining electromechanical applications is disclosed. The explosion relief door has a surface groove on its surface, and an explosion relief window is provided inside the surface groove. The top of the explosion relief window is rotatably connected to the inner wall of the top of the surface groove. The bottom of the explosion relief window and the bottom surface of the surface groove have a locking corner groove. The inner wall of the corner groove has a placement groove, and a magnetic strip is inserted into the inner side of each placement groove. A rubber strip is adhered to the inner wall of the surface groove at the bottom of the explosion relief window, and the rubber strip is located on both sides of the magnetic strip. The two magnetic strips are distributed in a repulsive manner, and both the magnetic strip and the placement groove have a "T" shaped cross-section. The designed magnetic strip can buffer and separate the explosion relief window from the explosion relief door during rapid descent under gravity, preventing damage caused by collision. Furthermore, the designed rubber strip further enhances the protective capability during use.

[0004] Although the aforementioned patents can increase the installation stability of explosion relief doors through protective plates and torsion springs, existing explosion relief doors are mainly divided into single-leaf doors and double-leaf doors. However, the door body of a single explosion relief door is a whole. When the explosion relief window cannot effectively release pressure, the explosion relief door will be subjected to a great impact. At this time, even if the sturdy explosion relief door does not break, it will bend and deform. Its own explosion relief capacity is poor, and it cannot be effectively recycled and reused, resulting in high usage costs.

[0005] Therefore, we propose a robust explosion relief door specifically for mining machinery and equipment to address the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide a robust explosion relief door for mining machinery and equipment, which solves the problems mentioned in the background art where the door body of a single explosion relief door is a whole unit. When the explosion relief window cannot effectively release pressure, the explosion relief door will be subjected to great impact. At this time, even if the sturdy explosion relief door does not break, it will bend and deform. It has poor explosion relief capacity, cannot be effectively recycled, and has high usage costs.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a securely connected explosion relief door for mining machinery and equipment, comprising a door frame, two explosion relief door bodies symmetrically and rotatably connected between the inner walls of the door frame, a movable door body rotatably connected to one side of each explosion relief door body via a hinge, a window groove being provided inside each explosion relief door body, an explosion relief window mechanism being provided inside the window groove, a connecting mechanism being provided inside the movable door body, a spring-opening mechanism being provided on the rear surface of each explosion relief door body, a window opening mechanism being provided inside the explosion relief door body near the window groove, a detection mechanism being provided on the rear side near the center of one of the explosion relief door bodies, multiple bolt grooves being equidistantly provided on one side of the outer surface of each explosion relief door body, the connecting mechanism comprising a cylinder body, a connecting plate being fixedly connected to the telescopic end of the cylinder body, a movable rack being fixedly connected to one side of the connecting plate, multiple rotating gears being equidistantly meshed on one side of the outer surface of the movable rack, and rotating bolts being fixedly connected to the outer surfaces of the rotating gears, the rotating bolts corresponding to the bolt grooves.

[0008] Preferably, a rack groove is provided near the center of the interior of the movable door body, and the movable rack is slidably disposed inside the rack groove. Multiple movable slots are provided at equal intervals on one side of the rack groove inside the movable door body. A gear slot is provided near the movable slot inside the movable door body, and the rotating gear is rotatably connected inside the gear slot. The rotating bolt is positioned corresponding to the movable slot. A cylinder slot is provided near the other side of the movable slot inside the movable door body, and the cylinder body is installed inside the cylinder slot.

[0009] Preferably, the explosion relief window mechanism includes an explosion relief window body, which is located inside the window groove and is rotatably connected to the inside of the explosion relief door body via a hinge. A plurality of recessed slots are equidistantly provided on one side of the explosion relief window body, and a third spring is fixedly connected inside the recessed slot. One end of the third spring is fixedly connected to a pin.

[0010] Preferably, a plurality of slots are provided at equal intervals on one side of the inner surface of the window groove, the pin corresponds to the slot, a limiting groove is provided on the inner surface of the embedded groove, and a limiting block is fixedly connected to the outer surface of the pin, the limiting block corresponds to the limiting groove.

[0011] Preferably, the window opening mechanism includes a connecting plate, with a plurality of blocking posts extending from one outer surface of the connecting plate, and a plurality of second springs fixedly connected to the other outer surface of the connecting plate, wherein the blocking posts and slots correspond to each other.

[0012] Preferably, a limiting plate is fixedly connected to the top of the connecting plate, a self-locking motor is provided above the connecting plate, and a rotating plate is fixedly connected to the output end of the self-locking motor. The rotating plate and the limiting plate cooperate with each other.

[0013] Preferably, the explosion relief door body has a rotating groove inside, the rotating plate is rotatably connected inside the rotating groove, the self-locking motor is installed inside the explosion relief door body and its output end extends into the rotating groove, the explosion relief door body has a compensation groove located below the rotating groove, the explosion relief door body has a sliding groove located below the compensation groove, the limiting plate is located inside the compensation groove, and the connecting plate and the blocking column are slidably connected inside the sliding groove.

[0014] Preferably, the pop-up mechanism includes a U-shaped frame, which is fixedly connected to the rear surface of the explosion vent door body near the window groove. A plurality of first springs are fixedly connected at equal intervals on the front surface of the U-shaped frame. A ejector plate is fixedly connected to the front end of each of the first springs. The ejector plate abuts against the rear surface of the explosion vent door body.

[0015] Preferably, the detection mechanism includes a controller, which is fixedly installed on the rear surface of one of the explosion relief door bodies. A temperature sensor and a pressure sensor are electrically connected above the controller, and both the temperature sensor and the pressure sensor are installed on the rear surface of the explosion relief door body.

[0016] Preferably, the controller is electrically connected to two audible and visual alarms, one of which is fixedly installed on the rear surface of the explosion relief door body near the top, and the other is fixedly installed on the front surface of the explosion relief door body near the top.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. After the cylinder body starts and retracts, it works with the connecting plate to drive the movable rack downwards. All the rotating gears will rotate synchronously and drive the rotating bolt to rotate into the movable groove inside the movable door body. At this time, the movable door body and the explosion relief door body are only connected by a hinge. When subjected to impact, it will bend, which improves the explosion relief effect. When it cannot withstand the pressure generated by the explosion, the hinge will break, thus greatly ensuring the integrity of the explosion relief door body and the movable door body. Only the hinge needs to be replaced for reuse, saving costs and reducing economic losses.

[0019] 2. After the self-locking motor starts, it drives the rotating plate to rotate, thereby squeezing the connecting plate to continue moving inside the compensation groove. Subsequently, after the rotating plate rotates excessively, it will lose the squeezing of the connecting plate. At this time, the second spring will rebound instantly. The squeezing force generated in this process will push the connecting plate towards the explosion relief window body, and cause the plug on the surface of the connecting plate to be inserted into the slot from the other side, pushing the pin back into the inner groove, so that the explosion relief window body loses its fixation. The first spring will rebound instantly and cooperate with the ejector plate to push the explosion relief window body outward, thereby accelerating the opening of the explosion relief window body and greatly improving the reliability of the explosion relief window body during explosion relief.

[0020] 3. When this device is installed in a mining operation site, the pressure sensor and temperature sensor will continuously monitor the temperature and pressure inside the mining operation site. When the pressure or temperature exceeds the standard, the controller will quickly send an activation signal to each electrical component. At this time, the audible and visual alarms inside and outside the explosion relief door will promptly issue an audible and visual warning, thereby reminding personnel inside the site to respond in time and reminding personnel outside to stay away in time, reducing the property and personnel losses caused by the explosion. Attached Figure Description

[0021] Figure 1 This is a perspective view of a securely connected explosion relief door for mining electromechanical applications according to the present invention.

[0022] Figure 2 This is another perspective view of a securely connected explosion relief door for mining electromechanical applications according to the present invention.

[0023] Figure 3 This is a schematic diagram of the explosion relief door body structure of a securely connected explosion relief door for mining electromechanical applications according to the present invention.

[0024] Figure 4 This is a structural schematic diagram of a securely connected explosion relief door opening mechanism for mining electromechanical equipment according to the present invention.

[0025] Figure 5 This is a structural schematic diagram of a securely connected explosion relief door detection mechanism for mining electromechanical equipment according to the present invention.

[0026] Figure 6 This is a schematic diagram of the structure of a securely connected explosion relief door for mining machinery and equipment according to the present invention.

[0027] Figure 7 This is a schematic diagram of the structure of a securely connected explosion relief door for mining electromechanical applications according to the present invention.

[0028] Figure 8 This is a structural schematic diagram of a securely connected explosion relief door and explosion relief window mechanism for mining electromechanical equipment according to the present invention.

[0029] In the picture:

[0030] 1. Door frame; 2. Explosion-proof door body; 21. Window groove; 22. Bolt groove; 23. Rotating groove; 24. Slot; 25. Sliding groove; 26. Compensation groove; 3. Movable door body; 31. Rack groove; 32. Movable groove; 33. Gear groove; 34. Cylinder groove; 4. Connecting mechanism; 401. Rotating gear; 402. Rotating bolt; 403. Movable rack; 404. Connecting plate; 405. Cylinder body; 5. Spring-opening mechanism; 501. U-shaped frame; 502. First spring; 50 3. Ejector plate; 6. Window opening mechanism; 601. Connecting plate; 602. Rotating plate; 603. Self-locking motor; 604. Blocking column; 605. Second spring; 606. Limiting plate; 7. Explosion relief window mechanism; 701. Explosion relief window body; 702. Embedded groove; 703. Limiting groove; 704. Pin; 705. Limiting block; 706. Third spring; 8. Detection mechanism; 801. Controller; 802. Temperature sensor; 803. Pressure sensor; 804. Audible and visual alarm. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figures 1-8 This invention provides a technical solution: a securely connected explosion relief door for mining machinery and equipment, comprising a door frame 1, two explosion relief door bodies 2 symmetrically and rotatably connected between the inner walls of the door frame 1, a movable door body 3 rotatably connected to one side of each explosion relief door body 2 via a hinge, a window groove 21 provided inside the explosion relief door body 2, an explosion relief window mechanism 7 provided inside the window groove 21, a connecting mechanism 4 provided inside the movable door body 3, a spring-loaded opening mechanism 5 provided on the rear surface of the explosion relief door body 2, and a window opening mechanism 6 provided inside the explosion relief door body 2 near the window groove 21. One of the explosion relief door bodies 2 has a detection mechanism 8 located near the center of its rear side. Multiple bolt grooves 22 are equidistantly opened on one side of the outer surface of the explosion relief door body 2. The connecting mechanism 4 includes a cylinder body 405. A connecting plate 404 is fixedly connected to the telescopic end of the cylinder body 405. A movable rack 403 is fixedly connected to one side of the connecting plate 404. Multiple rotating gears 401 are equidistantly meshed on one side of the outer surface of the movable rack 403. A rotating bolt 402 is fixedly connected to the outer surface of the rotating gear 401. The rotating bolt 402 corresponds to the bolt groove 22.

[0033] like Figure 7As shown, a rack groove 31 is provided near the center of the interior of the movable door body 3. A movable rack 403 is slidably disposed inside the rack groove 31. Multiple movable slots 32 are equidistantly provided on one side of the rack groove 31 inside the movable door body 3. A gear slot 33 is provided near the movable slot 32 inside the movable door body 3. A rotating gear 401 is rotatably connected inside the gear slot 33. A rotating bolt 402 is positioned corresponding to the movable slot 32. A cylinder slot 34 is provided on the other side of the movable door body 3 near the movable slot 32. A cylinder body 405 is installed inside the cylinder slot 34. Both the explosion relief door body 2 and the door frame 1 are supported by steel plates and are rotatably connected by a steel shaft. The door frame 1 is connected to the wall by steel bolts, resulting in a high overall connection stability. By activating the cylinder body 405 to extend and cooperate with the connecting plate 404, the movable rack 403 can be driven to slide upward inside the rack groove 31. Furthermore, since the movable rack 403 meshes with all the rotating gears 401, all the rotating gears 401 will rotate in opposite directions, thereby driving the rotating bolt 402 to rotate to the outside of the movable door body 3 and into the bolt groove 22 inside the explosion relief door body 2, so that the movable door body 3 and the explosion relief door body 2 form a whole, with high robustness. When the explosion relief window body 701 cannot effectively relieve the pressure generated by the explosion, the cylinder body 405 is activated to retract, thereby driving the rotating bolt 402 to rotate into the movable groove 32 inside the movable door body 3. At this time, the movable door body 3 and the explosion relief door body 2 are only connected by a hinge. When subjected to impact, it will bend, which improves the explosion relief effect. When it cannot withstand the pressure generated by the explosion, the hinge will break, thereby greatly ensuring the integrity of the explosion relief door body 2 and the movable door body 3. Only the hinge needs to be replaced for reuse, saving costs and reducing economic losses.

[0034] like Figures 1-3 and Figure 8 As shown, the explosion-proof window mechanism 7 includes an explosion-proof window body 701, which is located inside the window groove 21 and is rotatably connected to the inside of the explosion-proof door body 2 via a hinge. Multiple recessed grooves 702 are equidistantly provided on one side of the explosion-proof window body 701. A third spring 706 is fixedly connected inside the recessed groove 702. A pin 704 is fixedly connected to one end of the third spring 706. Under the action of the hinge, the explosion-proof window body 701 can rotate inward to enter the window groove 21 and complete the closing action. The rear side of the pin 704 is arc-shaped. During the process, the pin 704 will retract into the recessed groove 702 after being squeezed and squeeze the third spring 706 to retract.

[0035] like Figures 1-4 and Figure 8As shown, multiple slots 24 are equidistantly provided on the inner surface of one side of the window groove 21. The pin 704 corresponds to the slot 24. A limiting groove 703 is provided on the inner surface of the embedded groove 702. A limiting block 705 is fixedly connected to the outer surface of the pin 704. The limiting block 705 corresponds to the limiting groove 703. When the explosion-proof window body 701 is closed, the pin 704 and the slot 24 are aligned. At this time, the reaction force generated by the rebound of the third spring 706 will push the pin 704 into the slot 24, thereby fixing the explosion-proof window body 701 and making it a whole with the explosion-proof door body 2, which is firm and reliable.

[0036] like Figure 4 As shown, the window opening mechanism 6 includes a connecting plate 601. Multiple blocking posts 604 extend from one outer surface of the connecting plate 601, and multiple second springs 605 are fixedly connected to the other outer surface of the connecting plate 601. The blocking posts 604 correspond to the slots 24. The elastic force of the second springs 605 is much greater than that of the third springs 706. After the second springs 605 lose their compression, they will push the connecting plate 601 toward the explosion-proof window body 701. At this time, the blocking posts 604 on the surface of the connecting plate 601 will be inserted into the slots 24 from the other side and push the pins 704 back into the recessed grooves 702, so that the explosion-proof window body 701 loses its fixation. When subjected to the pressure generated by the explosion, it will open the explosion-proof window immediately. The structure is reasonable and simple, which ensures both the firmness of the explosion-proof window body 701 when it is not in use and the reliability of the explosion-proof window body 701 when it is in use.

[0037] like Figure 4 As shown, a limiting plate 606 is fixedly connected to the top of the connecting plate 601. A self-locking motor 603 is provided above the connecting plate 601. A rotating plate 602 is fixedly connected to the output end of the self-locking motor 603. The rotating plate 602 and the limiting plate 606 cooperate with each other. The self-locking motor 603 is installed deep inside the explosion relief door body 2. After the self-locking motor 603 is started, it will drive the rotating plate 602 to rotate inside the rotating groove 23 and squeeze the limiting plate 606 at the top of the connecting plate 601, so that the connecting plate 601 is squeezed at the same time, causing the second spring 605 to be in a compressed state. When the self-locking motor 603 continues to rotate, it will squeeze the connecting plate 601 to continue to move inside the compensation groove 26. Then the rotating plate 602 rotates excessively and loses the squeezing of the connecting plate 601. At this time, the second spring 605 will rebound instantly and make the explosion relief window body 701 lose its fixation at an extremely fast speed, so that the explosion relief work can be carried out.

[0038] like Figure 4As shown, the explosion relief door body 2 has a rotating groove 23 inside, and a rotating plate 602 is rotatably connected inside the rotating groove 23. A self-locking motor 603 is installed inside the explosion relief door body 2 and its output end extends into the rotating groove 23. A compensation groove 26 is provided inside the explosion relief door body 2 below the rotating groove 23. A sliding groove 25 is provided inside the explosion relief door body 2 below the compensation groove 26. A limiting plate 606 is located inside the compensation groove 26. A connecting plate 601 and a blocking column 604 are slidably connected inside the sliding groove 25. The rotating groove 23, the sliding groove 25, and the compensation groove 26 are mainly used to accommodate the rotating plate 602, the connecting plate 601, the second spring 605, the blocking column 604, and the limiting plate 606.

[0039] like Figure 1 , Figure 3 and Figure 6 As shown, the pop-up mechanism 5 includes a U-shaped frame 501, which is fixedly connected to the rear surface of the explosion relief door body 2 near the window groove 21. Multiple first springs 502 are fixedly connected at equal intervals on the front surface of the U-shaped frame 501. A catapult plate 503 is fixedly connected to the front end of the first spring 502. The catapult plate 503 abuts against the rear surface of the explosion relief window body 701. When the explosion relief window body 701 is closed, it will squeeze the catapult plate 503 and squeeze the first springs 502 to compress and store energy. The U-shaped frame 501 is mainly used to install the pop-up mechanism 5 to the explosion relief door body 2. When the explosion relief window body 701 is released, the first springs 502 will rebound instantly and cooperate with the catapult plate 503 to push the explosion relief window body 701 outward, thereby accelerating the opening of the explosion relief window body 701 and improving the reliability of the explosion relief window body 701 during explosion relief.

[0040] like Figure 1 , Figure 2 and Figure 5 As shown, the detection mechanism 8 includes a controller 801, which is fixedly installed on the rear surface of one of the explosion relief door bodies 2. A temperature sensor 802 and a pressure sensor 803 are electrically connected above the controller 801. Both the temperature sensor 802 and the pressure sensor 803 are installed on the rear surface of the explosion relief door body 2. The controller 801 is mainly used to control various electrical components. The pressure sensor 803 is used to detect pressure changes in the mining operation site, and the temperature sensor 802 is mainly used to detect temperature changes in the mining operation site. When the pressure or temperature is abnormal, the controller 801 will control the operation of various electrical components in a timely manner according to the data exceeding the standard, thereby quickly opening the explosion relief window body 701 and changing the explosion relief door body 2 and the movable door body 3 from a fixed state to a rotating state, ensuring that the device can release the pressure generated by the explosion as soon as possible and reduce the losses caused by the explosion.

[0041] like Figure 1 , Figure 2 and Figure 5 As shown, two audible and visual alarms 804 are electrically connected to the top of the controller 801. One audible and visual alarm 804 is fixedly installed on the rear surface of the explosion relief door body 2 near the top, and the other audible and visual alarm 804 is fixedly installed on the front surface of the explosion relief door body 2 near the top. When the pressure or temperature in the mining site is abnormal, the audible and visual alarms 804 inside and outside the explosion relief door body 2 will promptly emit sound and light to warn people inside the site to respond in time, and at the same time remind people outside to stay away in time, further reducing the property and personnel losses caused by the explosion. In the embodiments of the present invention, the explosion relief door body 2 can be designed as one or two, and some structures are symmetrically arranged. Those skilled in the art will not make further limitations on this.

[0042] The device's operation and working principle are as follows: When installed in a mining site, pressure sensor 803 and temperature sensor 802 continuously monitor the internal temperature and pressure. If the pressure or temperature exceeds the limit, controller 801 quickly sends a start signal to each electrical component. At this time, the audible and visual alarms 804 inside and outside the explosion relief door 2 will promptly issue an audible and visual warning, alerting personnel inside the site to respond in time and reminding external personnel to move away, further reducing property and personal injury losses from the explosion. Simultaneously, after the cylinder body 405 starts and retracts, it works with the connecting plate 404 to move the movable rack 403 downwards. All rotating gears 401 rotate synchronously, causing the rotating bolt 402 to rotate into the movable groove 32 inside the movable door body 3. At this time, the movable door body 3 and the explosion relief door body 2 are only connected by a hinge. Upon impact, it will bend, improving the explosion relief effect. When it cannot withstand... When the pressure generated by the explosion occurs, the hinge will break, thus ensuring the integrity of the explosion relief door body 2 and the movable door body 3 to a great extent. Only the hinge needs to be replaced for reuse, saving costs and reducing economic losses. After the self-locking motor 603 starts, it drives the rotating plate 602 to rotate, thereby squeezing the connecting plate 601 to continue moving inside the compensation groove 26. Subsequently, after the rotating plate 602 rotates excessively, it will lose the squeezing of the connecting plate 601. At this time, the second spring 605 will rebound instantly. The squeezing force generated in this process will push the connecting plate 601 towards the explosion relief window body 701, and cause the blocking post 604 on the surface of the connecting plate 601 to be inserted into the slot 24 from the other side, pushing the pin 704 back into the embedded groove 702, so that the explosion relief window body 701 loses its fixation. The first spring 502 will rebound instantly and, together with the ejector plate 503, push the explosion relief window body 701 outward, thereby accelerating the opening of the explosion relief window body 701 and greatly improving the reliability of the explosion relief window body 701 during explosion relief.

[0043] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A securely connected explosion relief door for mining electromechanical applications, comprising a door frame (1), characterized in that: Two explosion relief door bodies (2) are symmetrically and rotatably connected between the inner walls of the door frame (1). A movable door body (3) is rotatably connected to one side of the explosion relief door body (2) via a hinge. A window groove (21) is provided inside the explosion relief door body (2). An explosion relief window mechanism (7) is provided inside the window groove (21). A connecting mechanism (4) is provided inside the movable door body (3). A spring-opening mechanism (5) is provided on the rear surface of the explosion relief door body (2). An opening window mechanism (6) is provided inside the explosion relief door body (2) near the window groove (21). A detection mechanism (8) is provided on the rear side of one of the explosion relief door bodies (2) near the middle. Multiple bolt grooves (22) are equidistantly provided on the outer surface of one side of the explosion relief door body (2). The connecting mechanism (4) includes a cylinder body (405), a connecting plate (404) is fixedly connected to the telescopic end of the cylinder body (405), a movable rack (403) is fixedly connected to one side of the connecting plate (404), a plurality of rotating gears (401) are equidistantly meshed on the outer surface of one side of the movable rack (403), a rotating bolt (402) is fixedly connected to the outer surface of the rotating gear (401), and the rotating bolt (402) corresponds to the bolt groove (22); The explosion-proof window mechanism (7) includes an explosion-proof window body (701), which is located inside the window groove (21) and is rotatably connected to the inside of the explosion-proof door body (2) via a hinge. Multiple recessed grooves (702) are equidistantly provided on one side of the explosion-proof window body (701). A third spring (706) is fixedly connected inside the recessed groove (702), and a pin (704) is fixedly connected to one end of the third spring (706). Multiple slots (24) are equidistantly provided on the inner surface wall of one side of the window groove (21), and the pin (704) and the slot (24) correspond to each other. The window opening mechanism (6) includes a connecting plate (601), with multiple blocking posts (604) extending from one outer surface of the connecting plate (601), and multiple second springs (605) fixedly connected to the other outer surface of the connecting plate (601). The blocking posts (604) correspond to the slots (24). A limiting plate (606) is fixedly connected to the top of the connecting plate (601), and a self-locking motor (603) is provided above the connecting plate (601). A rotating plate (602) is fixedly connected to the output end of the self-locking motor (603), and the rotating plate (602) cooperates with the limiting plate (606).

2. The mine electromechanical explosion relief door with a stable connection according to claim 1, characterized in that: The movable door body (3) has a rack groove (31) near the middle inside. The movable rack (403) is slidably disposed inside the rack groove (31). Multiple movable slots (32) are equidistantly disposed on one side of the rack groove (31) inside the movable door body (3). A gear slot (33) is disposed near the movable slot (32) inside the movable door body (3). The rotating gear (401) is rotatably connected inside the gear slot (33). The rotating bolt (402) is positioned opposite to the movable slot (32). A cylinder slot (34) is disposed on the other side of the movable door body (3) near the movable slot (32). The cylinder body (405) is installed inside the cylinder slot (34).

3. The explosion relief door for mine electromechanical applications with a stable connection according to claim 1, characterized in that: The inner wall of the embedded groove (702) is provided with a limiting groove (703), and the outer surface of the pin (704) is fixedly connected to a limiting block (705), and the limiting block (705) and the limiting groove (703) correspond to each other.

4. The mine electromechanical explosion relief door with a stable connection according to claim 1, characterized in that: The explosion relief door body (2) has a rotating groove (23) inside. The rotating plate (602) is rotatably connected inside the rotating groove (23). The self-locking motor (603) is installed inside the explosion relief door body (2) and its output end extends into the rotating groove (23). The explosion relief door body (2) has a compensation groove (26) located below the rotating groove (23) inside. The explosion relief door body (2) has a sliding groove (25) located below the compensation groove (26) inside. The limiting plate (606) is located inside the compensation groove (26). The connecting plate (601) and the blocking column (604) are slidably connected inside the sliding groove (25).

5. A securely connected explosion relief door for mining electromechanical applications according to claim 4, characterized in that: The pop-out mechanism (5) includes a U-shaped frame (501), which is fixedly connected to the rear surface of the explosion relief door body (2) near the window groove (21). A plurality of first springs (502) are fixedly connected at equal intervals on the front surface of the U-shaped frame (501). A ejector plate (503) is fixedly connected to the front end of the first spring (502). The ejector plate (503) abuts against the rear surface of the explosion relief window body (701).

6. A securely connected explosion relief door for mining electromechanical applications according to claim 5, characterized in that: The detection mechanism (8) includes a controller (801), which is fixedly installed on the rear surface of one of the explosion relief door bodies (2). A temperature sensor (802) and a pressure sensor (803) are electrically connected above the controller (801), and both the temperature sensor (802) and the pressure sensor (803) are installed on the rear surface of the explosion relief door body (2).

7. A securely connected explosion relief door for mining electromechanical applications according to claim 6, characterized in that: The controller (801) is electrically connected to two audible and visual alarms (804) above it. One of the audible and visual alarms (804) is fixedly installed on the rear surface of the explosion relief door body (2) near the top, and the other audible and visual alarm (804) is fixedly installed on the front surface of the explosion relief door body (2) near the top.

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