Safety locking device for explosion-proof door

Abstract

The utility model provides a safe locking device for an explosion-proof door, and relates to the technical field of explosion-proof door equipment. Comprising two explosion-proof doors, top connecting plates are installed on the tops of the two explosion-proof doors, the explosion-proof doors, internal explosion-proof base plates, the top connecting plates and a fixing frame are arranged, first positioning bolts are conveniently positioned and installed through the first positioning bolts, internal pressure relief operation is conducted through a pressure relief channel, and the pressure relief effect is improved. The fixing block and the fixing frame are positioned and installed through two seventh positioning bolts, the two power storage bins are installed to provide required power resources for the whole power equipment, and the top of the whole installation site of the fixing frame is conveniently limited and connected through the positioning block and a second positioning bolt, so that the stability of the equipment during use is improved, and the practicability of the equipment is improved. The explosion-proof door and the internal explosion-proof base plate are both made of aluminum alloy, the reinforcing strips and the positioning plate are both made of stainless steel, and the explosion-proof effect of the equipment in use is improved through cooperation of the materials.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof door equipment technology, and in particular to a safety locking device for explosion-proof doors. Background Technology

[0002] As mining and underground engineering operations become more sophisticated, the safety of mining electrical equipment has become increasingly crucial, especially the stable operation of mining electrical cabinets in high-temperature, high-humidity, and hazardous gas environments. As a vital component of the mine safety system, mining electrical cabinets must effectively prevent accidents such as fires and explosions caused by external sparks and electrical equipment malfunctions, thereby safeguarding the lives and property of miners.

[0003] In the design of mining electrical cabinets, explosion-proof designs are often adopted to prevent sparks or leaks of explosive gases from electrical equipment. This involves strictly isolating the electrical equipment inside the cabinet from the external environment to ensure equipment safety. However, during the use of mining electrical cabinets, especially in flammable and explosive environments, the airtightness of the cabinet door and the reliability of the safety locking device become key factors in ensuring explosion-proof safety.

[0004] In practical applications, existing explosion-proof intelligent electrical cabinets for mining are typically equipped with explosion-proof doors. The function of these doors is to seal off the explosive gases inside the cabinet and prevent external gases from entering. However, existing explosion-proof doors still have unstable locking issues when closed, posing safety hazards and causing numerous problems.

[0005] Therefore, this utility model provides a safety locking device for explosion-proof doors. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a safety locking device for explosion-proof doors.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a safety locking device for explosion-proof doors, comprising two explosion-proof doors.

[0008] Both explosion-proof doors are equipped with a top connecting plate. A fixed frame is fixedly connected to one side of the top connecting plate. Two mounting seats are installed on the outer side of the top connecting plate. A drive motor is fixedly connected to the outer side of the two mounting seats. A monitoring camera is fixedly connected to the output end of each drive motor. The monitoring camera is used to assist in remote monitoring. The monitoring range of the monitoring camera is adjusted by the operation of the drive motor.

[0009] Both of the explosion-proof doors are equipped with internal explosion-proof pads, and the internal explosion-proof pads are equipped with reinforcing strips. The internal explosion-proof pads and reinforcing strips are used to reinforce the overall strength of the explosion-proof doors.

[0010] An auxiliary locking mechanism is installed on the side of the fixed frame away from the top connecting plate. A limiting guide rail for use with the explosion-proof door is provided at the bottom of the fixed frame. The auxiliary locking mechanism includes a fixed block. A fixed block is installed on the outside of the fixed frame. A second electric telescopic rod is fixedly connected inside the fixed block. A connecting platform is fixedly connected to the output end of the second electric telescopic rod. A mounting crossbar is fixedly connected to both sides of the connecting platform. A positioning sleeve is installed at one end of each of the two mounting crossbars. A rotating locking plate for use with the explosion-proof door is rotatably connected inside the positioning sleeve. A sixth positioning bolt for positioning the mounting crossbar is threaded to the outside of the positioning sleeve. A rotating motor is installed on the outside of the positioning sleeve. The rotating motor is located below the sixth positioning bolt. The output end of the rotating motor extends into the positioning sleeve and is connected to the rotating locking plate. By operating the second electric telescopic rod, the overall height of the auxiliary locking mechanism is lowered until the rotating locking plate is located on one side of the explosion-proof door. At this time, by operating the rotating motor, the rotating locking plate is rotated towards the explosion-proof door until it touches the explosion-proof door, thus completing one locking operation.

[0011] A fixed horizontal plate is fixedly connected to the outer side of the connecting platform, and a fixed base plate is fixedly connected to the bottom of the fixed horizontal plate. Two first electric telescopic rods are fixedly connected to the outer side of the fixed base plate. The two first electric telescopic rods are symmetrically distributed. The output ends of the two first electric telescopic rods pass through the fixed base plate and are fixedly connected to a positioning locking rod. By operating the first electric telescopic rods, the positioning locking rod is driven to move to one side until it hits the explosion-proof door, thus realizing a secondary locking operation.

[0012] In a preferred embodiment, positioning blocks are fixedly connected to both sides of the fixed frame, and second positioning bolts are threaded into the interior of each positioning block. The positioning blocks and second positioning bolts facilitate the limiting connection of the top of the fixed frame at the overall installation location, thereby improving the stability of the equipment during use. Pressure relief channels are installed on the outer sides of the two explosion-proof doors and below the external handles. A valve is installed on the outer side of one end of the pressure relief channel that extends into the interior of the explosion-proof door. First positioning bolts are installed on the outer side of the valve that are evenly distributed and extend into the interior of the explosion-proof door. The valve controls the opening and closing of the pressure relief channel, and the first positioning bolts facilitate the positioning and installation of the first positioning bolts. Internal pressure relief operations are performed through the pressure relief channels.

[0013] In a preferred embodiment, a battery storage compartment is installed on one side of the fixed frame and on both sides of the fixed block. The outer side of the fixed block is threaded with symmetrically distributed seventh positioning bolts that extend into the interior of the fixed frame. The fixed block and the fixed frame are positioned and installed by two seventh positioning bolts. The installation of two battery storage compartments provides the required power resources for the overall power equipment. A connecting rod is installed on one side of the internal explosion-proof pad. One end of the connecting rod is equipped with an internal handle. The other end of the connecting rod passes through the explosion-proof door and is connected to the corresponding connecting rod, making it convenient for workers to pull the explosion-proof door from both inside and outside.

[0014] In a preferred embodiment, a positioning plate is installed on the outer side of the reinforcing strip. A fourth positioning bolt extending into the interior of the internal explosion-proof pad is threaded onto the outer side of the positioning plate. A third positioning bolt extending into the interior of the reinforcing strip is also threaded onto the outer side of the positioning plate. The third and fourth positioning bolts reinforce the installation stability of the reinforcing strip and the internal explosion-proof pad. The explosion-proof door and the internal explosion-proof pad are both made of aluminum alloy, while the reinforcing strip and the positioning plate are both made of stainless steel. This combination of materials improves the explosion-proof effect during equipment use. Symmetrically distributed connecting hinge plates are installed on the outer sides of both explosion-proof doors. A limiting shaft is installed on the side of the internal explosion-proof pad away from the explosion-proof door. A reinforcing plate is rotatably connected to the outer side of the limiting shaft. One end of the reinforcing plate is located on one side of the reinforcing strip. A limiting groove is formed on the outer side of the reinforcing plate. A limiting rod extending into the interior of the reinforcing strip is installed inside the limiting groove. A fifth positioning bolt extending into the limiting shaft is threaded onto the outer side of the reinforcing plate. The reinforcing plate provides auxiliary limiting treatment for the reinforcing strip.

[0015] In a preferred embodiment, a wireless transceiver is fixedly connected to the side of the fixed frame away from the top connecting plate and below one of the energy storage compartments. A main control board is fixedly connected inside the wireless transceiver, and a control chip is fixedly connected to the outside of the main control board. The valve, drive motor, monitoring camera, energy storage compartment, wireless transceiver, rotary motor, first electric telescopic rod, and second electric telescopic rod are all electrically connected to the control chip. The control chip is used to control the operation of the valve, drive motor, monitoring camera, energy storage compartment, wireless transceiver, rotary motor, first electric telescopic rod, and second electric telescopic rod, thereby realizing unified management of power equipment.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] By setting up an explosion-proof door, an internal explosion-proof pad, a top connecting plate, and a fixed frame, the monitoring range of the surveillance camera is adjusted by the operation of a drive motor. The auxiliary locking mechanism is lowered by the operation of the second electric telescopic rod until the rotating locking plate is positioned on one side of the explosion-proof door. At this point, the rotating motor rotates the locking plate towards the explosion-proof door until it abuts against the door, achieving the first locking operation. The positioning locking rod moves to one side by the operation of the first electric telescopic rod until it abuts against the explosion-proof door, achieving the second locking operation. The pressure relief channel is opened and closed by a valve. The first positioning bolt facilitates the positioning and installation of the first positioning bolt. Internal pressure relief is performed through the pressure relief channel. (The last sentence appears to be incomplete and possibly refers to a different mechanism or system.) Positioning bolts are used to position and install the fixing block and fixing frame. Two energy storage compartments provide the necessary power resources for the overall power equipment. The positioning block and the second positioning bolt facilitate the limiting connection of the top of the overall installation location of the fixing frame, thereby improving the stability of the equipment during use. The other end of each connecting rod passes through the explosion-proof door and is connected to the corresponding connecting rod, allowing workers to pull it from both inside and outside the explosion-proof door. The third and fourth positioning bolts reinforce the installation stability of the reinforcing strip and the internal explosion-proof pad. The explosion-proof door and the internal explosion-proof pad are made of aluminum alloy, while the reinforcing strip and the positioning plate are made of stainless steel. The combination of these materials improves the explosion-proof effect of the equipment during use. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of a safety locking device for an explosion-proof door provided by this utility model. Figure 1 ;

[0019] Figure 2 A schematic diagram of the overall structure of a safety locking device for an explosion-proof door provided by this utility model. Figure 2 ;

[0020] Figure 3 An enlarged schematic diagram of the top connecting plate and fixing frame structure of a safety locking device for an explosion-proof door provided by this utility model;

[0021] Figure 4 An enlarged structural diagram of the auxiliary locking mechanism of the explosion-proof door safety locking device provided by this utility model;

[0022] Figure 5 The present invention provides an accessory for a safety locking device for an explosion-proof door. Figure 2 Enlarged schematic diagram of the structure at point A in the diagram.

[0023] Legend:

[0024] 1. Explosion-proof door; 11. Connecting hinge plate; 12. Pressure relief channel; 13. External handle; 14. Connecting rod; 15. Internal handle; 16. Valve; 17. First positioning bolt; 18. Positioning block; 19. Second positioning bolt;

[0025] 2. Internal explosion-proof pad; 21. Reinforcing strip; 22. Positioning plate; 23. Third positioning bolt; 24. Fourth positioning bolt; 25. Limiting shaft; 26. Reinforcing plate; 27. Limiting rod; 28. Limiting groove; 29. ​​Fifth positioning bolt;

[0026] 3. Top connecting plate; 31. Mounting base; 32. Drive motor; 33. Surveillance camera;

[0027] 4. Fixing frame; 41. Battery compartment; 42. Wireless transceiver; 43. Mounting crossbar; 44. Positioning sleeve; 45. Sixth positioning bolt; 46. Rotating motor;

[0028] 5. Auxiliary locking mechanism; 51. Fixed cross plate; 52. Fixed base plate; 53. First electric telescopic rod; 54. Positioning locking rod; 55. Connecting platform; 56. Fixing block; 57. Seventh positioning bolt; 58. Second electric telescopic rod; 59. Rotating locking plate. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] like Figures 1-5 As shown, this embodiment provides a technical solution: a safety locking device for explosion-proof doors, including two explosion-proof doors 1. A top connecting plate 3 is installed on the top of each of the two explosion-proof doors 1. A fixing frame 4 is fixedly connected to one side of the top connecting plate 3. Two mounting seats 31 are installed on the outer side of the top connecting plate 3. A drive motor 32 is fixedly connected to the outer side of the two mounting seats 31. A monitoring camera 33 is fixedly connected to the output end of each drive motor 32. The monitoring camera 33 is used to assist in remote monitoring. The monitoring range of the monitoring camera 33 is adjusted by the operation of the drive motor 32. An internal explosion-proof pad 2 is installed inside each of the two explosion-proof doors 1. A reinforcing strip 21 is installed inside each internal explosion-proof pad 2. The internal explosion-proof pad 2 and the reinforcing strip 21 are used to reinforce the overall strength of the explosion-proof door 1.

[0031] In this design, an auxiliary locking mechanism 5 is installed on the side of the fixed frame 4 away from the top connecting plate 3. A limiting guide rail for use with the explosion-proof door 1 is provided at the bottom of the fixed frame 4. The auxiliary locking mechanism 5 includes a fixing block 56. The fixing block 56 is installed on the outside of the fixed frame 4. A second electric telescopic rod 58 is fixedly connected inside the fixing block 56. A connecting platform 55 is fixedly connected to the output end of the second electric telescopic rod 58. Mounting crossbars 43 are fixedly connected to both sides of the connecting platform 55. A positioning sleeve 44 is installed at one end of each of the two mounting crossbars 43. A rotating locking plate 59 for use with the explosion-proof door 1 is rotatably connected inside the positioning sleeve 44. The outer side of the positioning sleeve 44 is threaded with a sixth positioning bolt 45 for positioning the crossbar 43. A rotating motor 46 is installed on the outer side of the positioning sleeve 44. The rotating motor 46 is located below the sixth positioning bolt 45. The output end of the rotating motor 46 extends into the positioning sleeve 44 and is connected to the rotating locking plate 59. The second electric telescopic rod 58 is operated to drive the overall height of the auxiliary locking mechanism 5 to be lowered until the rotating locking plate 59 is located on one side of the explosion-proof door 1. At this time, the rotating motor 46 is operated to drive the rotating locking plate 59 to rotate towards the explosion-proof door 1 until it abuts against the explosion-proof door 1, thus realizing one locking operation.

[0032] In this scheme, a fixed horizontal plate 51 is fixedly connected to the outer side of the connecting platform 55, and a fixed base plate 52 is fixedly connected to the bottom of the fixed horizontal plate 51. Two first electric telescopic rods 53 are fixedly connected to the outer side of the fixed base plate 52. The two first electric telescopic rods 53 are symmetrically distributed. The output ends of the two first electric telescopic rods 53 pass through the fixed base plate 52 and are fixedly connected to a positioning locking rod 54. By operating the first electric telescopic rods 53, the positioning locking rod 54 is driven to move to one side until it abuts against the explosion-proof door 1, thereby realizing the secondary locking operation.

[0033] Going further, such as Figures 1-2 As shown: In this solution, positioning blocks 18 are fixedly connected to both sides of the fixed frame 4. The interior of each positioning block 18 is threaded with a second positioning bolt 19. The positioning blocks 18 and the second positioning bolts 19 facilitate the limiting connection of the top of the fixed frame 4 at the overall installation location, thereby improving the stability of the equipment during use.

[0034] Going further, such as Figures 1-2 As shown: In this scheme, a pressure relief channel 12 is installed on the outer side of the two explosion-proof doors 1 and below the outer handle 13. A valve 16 is installed on the outer side of the end of the pressure relief channel 12 that extends into the interior of the explosion-proof door 1. First positioning bolts 17, which are evenly distributed and extend into the interior of the explosion-proof door 1, are installed on the outer side of the valve 16. The opening and closing of the pressure relief channel 12 is controlled by the valve 16. The first positioning bolts 17 are conveniently positioned and installed by the valve 16. The internal pressure relief operation is performed through the pressure relief channel 12.

[0035] In this solution, a connecting rod 14 is installed on one side of the internal explosion-proof pad 2. An internal handle 15 is installed on one end of the connecting rod 14. The other end of the connecting rod 14 passes through the explosion-proof door 1 and is connected to the corresponding connecting rod 14, so that the staff can pull it from both inside and outside the explosion-proof door 1.

[0036] Going further, such as Figures 1-5 As shown, in this scheme, energy storage compartments 41 are installed on one side of the fixed frame 4 and on both sides of the fixed block 56. The outer side of the fixed block 56 is threaded with symmetrically distributed seventh positioning bolts 57 that extend into the interior of the fixed frame 4. The fixed block 56 and the fixed frame 4 are positioned and installed by the two seventh positioning bolts 57. The installation of two energy storage compartments 41 provides the required power resources for the overall power equipment.

[0037] In this scheme, a wireless transceiver 42 is fixedly connected to the side of the fixed frame 4 away from the top connecting plate 3 and below one of the energy storage compartments 41. The main control board is fixedly connected inside the wireless transceiver 42, and a control chip is fixedly connected to the outside of the main control board. The valve 16, drive motor 32, monitoring camera 33, energy storage compartment 41, wireless transceiver 42, rotating motor 46, first electric telescopic rod 53 and second electric telescopic rod 58 are all electrically connected to the control chip. The control chip is used to control the operation of the valve 16, drive motor 32, monitoring camera 33, energy storage compartment 41, wireless transceiver 42, rotating motor 46, first electric telescopic rod 53 and second electric telescopic rod 58, realizing unified management of power equipment.

[0038] Going further, such as Figure 5 As shown, in this design, a positioning plate 22 is installed on the outer side of the reinforcing strip 21. A fourth positioning bolt 24 extending into the inner explosion-proof pad 2 is threaded onto the outer side of the positioning plate 22. A third positioning bolt 23 extending into the inner side of the reinforcing strip 21 is also threaded onto the outer side of the positioning plate 22. The third positioning bolt 23 and the fourth positioning bolt 24 reinforce the installation stability of the reinforcing strip 21 and the inner explosion-proof pad 2. The explosion-proof door 1 and the inner explosion-proof pad 2 are both made of aluminum alloy, while the reinforcing strip 21 and the positioning plate 22 are both made of stainless steel. This combination of materials improves the stability of the equipment during use. To achieve explosion-proof performance, symmetrically distributed connecting hinge plates 11 are installed on the outer sides of both explosion-proof doors 1. A limiting shaft 25 is installed on the side of the internal explosion-proof pad 2 away from the explosion-proof door 1. A reinforcing plate 26 is rotatably connected to the outer side of the limiting shaft 25. One end of the reinforcing plate 26 is located on one side of the reinforcing strip 21. A limiting groove 28 is opened on the outer side of the reinforcing plate 26. A limiting rod 27 extending into the interior of the reinforcing strip 21 is installed inside the limiting groove 28. A fifth positioning bolt 29 extending into the interior of the limiting shaft 25 is threadedly connected to the outer side of the reinforcing plate 26. The reinforcing strip 21 is auxiliaryly limited by the reinforcing plate 26.

[0039] Working principle:

[0040] like Figures 1-5 As shown:

[0041] By setting up an explosion-proof door 1, an internal explosion-proof pad 2, a top connecting plate 3, and a fixing frame 4, the monitoring camera 33 is used to assist in remote monitoring during use. The monitoring range of the monitoring camera 33 is adjusted by driving the motor 32. The internal explosion-proof pad 2 and the reinforcing strip 21 are used to reinforce the overall strength of the explosion-proof door 1.

[0042] The second electric telescopic rod 58 is operated, which drives the overall height of the auxiliary locking mechanism 5 to be lowered until the rotating locking plate 59 is located on one side of the explosion-proof door 1. At this time, the rotating motor 46 is operated, which drives the rotating locking plate 59 to rotate towards the side of the explosion-proof door 1 until it touches the explosion-proof door 1, thus realizing a locking operation.

[0043] The operation of the first electric telescopic rod 53 drives the positioning locking rod 54 to move to one side until it touches the explosion-proof door 1, thus realizing the secondary locking operation.

[0044] The pressure relief channel 12 is opened by valve 16, and the first positioning bolt 17 is conveniently positioned and installed by the first positioning bolt 17. The internal pressure relief operation is carried out by the pressure relief channel 12. The fixing block 56 and the fixing frame 4 are positioned and installed by two seventh positioning bolts 57. The installation of two energy storage compartments 41 provides the required power resources for the whole power equipment.

[0045] The control chip is used to control the operation of valve 16, drive motor 32, monitoring camera 33, energy storage tank 41, wireless signal transceiver 42, rotary motor 46, first electric telescopic rod 53 and second electric telescopic rod 58, realizing unified management of power equipment.

[0046] The reinforcing plate 26 provides auxiliary limiting treatment for the reinforcing strip 21. The positioning block 18 and the second positioning bolt 19 facilitate the limiting connection of the top of the fixed frame 4 at the overall installation location, thereby improving the stability of the equipment during use. The other end of the connecting rod 14 passes through the explosion-proof door 1 and is connected to the corresponding connecting rod 14, making it convenient for staff to pull from both inside and outside the explosion-proof door 1.

[0047] The installation stability of the reinforcing strip 21 and the internal explosion-proof pad 2 is reinforced by the third positioning bolt 23 and the fourth positioning bolt 24. The explosion-proof door 1 and the internal explosion-proof pad 2 are both made of aluminum alloy, while the reinforcing strip 21 and the positioning plate 22 are both made of stainless steel. The combination of the above materials improves the explosion-proof effect when the equipment is in use.

[0048] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A safety locking device for explosion-proof doors, comprising two explosion-proof doors (1), characterized in that, The top of each of the two explosion-proof doors (1) is equipped with a top connecting plate (3), and a fixed frame (4) is fixedly connected to one side of the top connecting plate (3). Two monitoring cameras (33) are installed on the outside of the top connecting plate (3). Both of the explosion-proof doors (1) are equipped with internal explosion-proof pads (2), and the internal explosion-proof pads (2) are equipped with reinforcing strips (21). An auxiliary locking mechanism (5) is installed on the side of the fixed frame (4) away from the top connecting plate (3). The auxiliary locking mechanism (5) includes a fixing block (56). The fixing block (56) is installed on the outside of the fixed frame (4). A second electric telescopic rod (58) is fixedly connected inside the fixing block (56). A connecting platform (55) is fixedly connected to the output end of the second electric telescopic rod (58). A mounting crossbar (43) is fixedly connected to both sides of the connecting platform (55). A positioning sleeve (44) is installed at one end of each of the two mounting crossbars (43). A rotating locking plate (59) is rotatably connected inside the positioning sleeve (44). A rotating motor (46) is installed on the outside of the positioning sleeve (44). A fixed horizontal plate (51) is fixedly connected to the outside of the connecting platform (55), and a fixed base plate (52) is fixedly connected to the bottom of the fixed horizontal plate (51). Two first electric telescopic rods (53) are fixedly connected to the outside of the fixed base plate (52). The output ends of the two first electric telescopic rods (53) pass through the fixed base plate (52) and are fixedly connected to a positioning locking rod (54).

2. The flameproof door safety locking device according to claim 1, characterized in that: Both sides of the fixed frame (4) are fixedly connected to positioning blocks (18), and the interior of each positioning block (18) is threaded with a second positioning bolt (19).

3. The flameproof door safety locking device according to claim 1, characterized in that: Pressure relief channels (12) are installed on the outer side of the two explosion-proof doors (1) and below the outer handle (13). A valve (16) is installed on the outer side of one end of the pressure relief channel (12) extending into the interior of the explosion-proof door (1). First positioning bolts (17) are installed on the outer side of the valve (16) at equal intervals and extending into the interior of the explosion-proof door (1).

4. The flameproof door safety locking device according to claim 3, characterized in that: A battery compartment (41) is installed on one side of the fixed frame (4) and on both sides of the fixed block (56). The outer side of the fixed block (56) is threaded with symmetrically distributed seventh positioning bolts (57) that extend into the interior of the fixed frame (4).

5. The flameproof door safety locking device according to claim 4, characterized in that: A connecting rod (14) is installed on one side of each of the internal explosion-proof pads (2). An internal handle (15) is installed on one end of each connecting rod (14). The other end of each connecting rod (14) passes through the explosion-proof door (1) and is connected to the corresponding connecting rod (14).

6. The flame gate safety locking device of claim 1, wherein: A positioning plate (22) is installed on the outside of the reinforcing strip (21). A fourth positioning bolt (24) extending into the interior of the internal explosion-proof pad (2) is threaded on the outside of the positioning plate (22). A third positioning bolt (23) extending into the interior of the reinforcing strip (21) is threaded on the outside of the positioning plate (22). A symmetrically distributed connecting hinge plate (11) is installed on the outside of both explosion-proof doors (1). A limiting shaft (25) is installed on the side of the internal explosion-proof pad (2) away from the explosion-proof door (1). A reinforcing plate (26) is rotatably connected to the outside of the limiting shaft (25). A limiting groove (28) is opened on the outside of the reinforcing plate (26). A limiting rod (27) extending into the interior of the reinforcing strip (21) is installed inside the limiting groove (28). A fifth positioning bolt (29) extending into the interior of the limiting shaft (25) is threaded on the outside of the reinforcing plate (26).

7. The flame gate safety locking device of claim 4, wherein: A wireless transceiver (42) is fixedly connected to the side of the fixed frame (4) away from the top connecting plate (3) and below one of the battery compartments (41). A main control board is fixedly connected inside the wireless transceiver (42), and a control chip is fixedly connected to the outside of the main control board. The valve (16), drive motor (32), monitoring camera (33), battery compartment (41), wireless transceiver (42), rotating motor (46), first electric telescopic rod (53) and second electric telescopic rod (58) are all electrically connected to the control chip.

Images