Bidirectional escape fire resisting shutter for mine fire fighting

Abstract

The invention discloses a bidirectional escape fire resisting shutter for mine fire fighting, and relates to the technical field of fire resisting shutters. The front side and the rear side of the middle frame are each provided with a roller shutter partition mechanism and a channel mechanism, the front roller shutter partition mechanism and the rear roller shutter partition mechanism and the two channel mechanisms are arranged in a central symmetry mode, the center position of the middle frame is a transfer buffer area, and two one-way door opening mechanical lock mechanisms are arranged in the transfer buffer area in a central symmetry mode. The roller shutter partition mechanism and the channel mechanism are symmetrically arranged on the front side and the rear side of the middle frame and matched with the transfer buffer area in the center of the middle frame to form a two-way fireproof escape channel, the mine underground multi-direction operation scene characteristic is adapted, the escape limitation of a traditional one-way fireproof roller shutter is broken through, and the escape requirements of operators in the areas on the two sides can be met at the same time; when the channel door on one side is opened for people to escape, the mechanical lock mechanism can automatically lock the channel door on the other side, so that the inward-opening door frame cannot be opened, and cross spreading of fire and smoke caused by intercommunication of channels on the two sides is structurally avoided.

Description

Technical Field

[0001] This invention relates to the field of fireproof roller shutter technology, and in particular to a two-way escape fireproof roller shutter for mine fire fighting. Background Technology

[0002] Mining is a high-risk industry. Underground working environments are characterized by confined and narrow spaces, complex network of tunnels, abundant flammable and explosive materials, and limited ventilation. In the event of a fire, flames can spread rapidly through underground tunnels, and toxic fumes can quickly fill the workspace. This not only causes severe damage to mining equipment and resources but also poses a significant threat to the lives of underground workers. Therefore, the design of fire prevention and escape routes in mines is a core component of the mine safety protection system. Fire-resistant roller shutters, as key equipment for fire isolation and escape assistance, are widely used in critical nodes of underground mine tunnels. Through their fire-resistant and heat-insulating curtain structure, they isolate fire zones, effectively slowing the spread of fire and smoke, and buying valuable time for underground personnel to escape and for fire rescue. They are an indispensable and important component of mine fire protection systems.

[0003] However, traditional fireproof roller shutters for mines are mostly one-way designs, which can only provide fire protection and cannot meet the two-way escape needs of miners working underground. Therefore, this application proposes a two-way escape fireproof roller shutter for mine fire fighting. Summary of the Invention

[0004] The purpose of this invention is to provide a two-way escape fireproof roller shutter for mine fire fighting, which solves the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a two-way escape fireproof roller shutter for mine fire fighting, comprising a middle frame, wherein roller shutter partition mechanism, passage mechanism, control box and control board are provided on both the front and rear sides of the middle frame, and the front and rear roller shutter partition mechanisms and the two passage mechanisms are arranged in a centrally symmetrical manner; The center of the middle frame is a transfer buffer zone, and two one-way opening mechanical lock mechanisms are arranged symmetrically in the transfer buffer zone. The roller blind partition mechanism includes a storage box fixed on the middle frame. A U-shaped main limiting frame is fixedly connected to the lower end of the storage box. The open end of the main limiting frame points towards the channel mechanism. A winding motor is provided at the end of the storage box away from the channel mechanism. The main body of the roller blind is wound up inside the storage box. The channel mechanism includes a bottom fixed frame, a flip frame, and an inward-opening door frame. The bottom fixed frame is fixed to the middle frame. A flip servo is installed inside the middle frame. The end of the flip frame away from the main limiting frame is hinged to the middle frame. The output end of the flip servo passes through the lower side wall of the bottom fixed frame and is fixedly connected to the upper end of the flip frame. The output end of the flip servo is coaxially arranged with the central axis at the hinge point of the flip frame and the middle frame. The end of the inward-opening door frame away from the main limiting frame is hinged to the inner wall of the flip frame away from the main limiting frame. Fireproof door panels are installed on the inner sides of both inward-opening door frames. A second atomizing water spray pipe is installed on the front end of the flip frame.

[0006] Preferably, the one-way door opening mechanical lock mechanism includes a transmission rod, a U-shaped fixing frame fixed to the inner side wall of the middle frame, and an abutting outer frame. The fixing frame is arranged horizontally, and the abutting outer frame is arranged vertically. A sliding frame is slidably connected to the fixing frame, and a stop bar is fixedly connected to the lower end of the sliding frame. A sliding block is provided inside the abutting outer frame. A connecting block two is rotatably connected to the upper end of the sliding block, and a connecting block one is rotatably connected to the upper end of the sliding block. The two ends of the transmission rod are fixedly connected to the side walls of connecting block one and connecting block two, respectively. Two limiting sliding rods two are fixedly connected to the rear inner wall of the abutting outer frame. The front end of the limiting sliding rod two passes through the sliding block and is fixedly connected to the front inner wall of the abutting outer frame. An abutting spring two is sleeved on the limiting sliding rod two. The front and rear ends of the abutting spring two are fixedly connected to the rear side wall of the sliding block and the rear inner wall of the abutting outer frame, respectively. An abutting crossbar is fixedly connected to the lower end of the sliding block.

[0007] Preferably, the abutting crossbar and the stop bar are both located inside the middle frame, the abutting crossbar is located on the side of the inward opening door frame away from the flip frame, and the upper end face of the stop bar is located below the lower end face of the abutting crossbar. A top water tank is provided at the upper end of the middle frame, and a submersible pump is provided inside the top water tank. An atomizing water spray pipe is provided at the lower end of the baffle, and both the atomizing water spray pipe and the atomizing water spray pipe are connected to the output end of the submersible pump.

[0008] Preferably, the output end of the winding motor is fixedly connected to a winding rod. The end of the winding rod near the channel mechanism passes through the side wall of the storage box near the winding motor and is rotatably connected to the inner wall of the storage box near the channel mechanism. A connecting hole one is opened on the lower side wall of the storage box. A mating groove is opened on the inner side wall of the main limiting frame. A connecting hole two is opened on the upper inner wall of the mating groove. The connecting hole one and the connecting hole two are connected. The lower end of the roller blind body passes through the connecting hole one and the connecting hole two in sequence and extends to the inner side of the main limiting frame. The upper end of the roller blind body is connected to the winding rod. A mating slide is opened at the end of the flipping frame near the main limiting frame. Auxiliary strip airbags are provided on the inner walls of the front and rear sides of the mating slide. Sealing strip airbags are provided on the inner walls of the front and rear sides of the mating groove. An air pump is provided in the middle frame. The auxiliary strip airbags and the sealing strip airbags are both connected to the output end of the air pump. The two auxiliary strip airbags and the two sealing strip airbags are located on the front and rear sides of the main body of the roller shutter, respectively.

[0009] Preferably, the storage box has spiral winding tracks on both the left and right inner walls. The lower end of the winding track is connected to a connecting hole. The main body of the roller shutter includes several reinforcing rods and several fireproof cloths. The fireproof cloths and reinforcing rods are arranged alternately and are fixedly connected to the reinforcing rods. The left and right ends of the reinforcing rods and the fireproof cloths extend into the mating groove and the mating slide, respectively. The distance between the inner walls of the spiral winding track, the mating groove, and the mating slide is the same on both the front and back sides. A connecting strap is fixedly connected to the upper end of the top reinforcing rod, and the upper end of the connecting strap is fixedly connected to the side wall of the winding rod.

[0010] Preferably, each of the left and right ends of the reinforcing rod is rotatably connected to two abutting wheels, which are symmetrically arranged in the front-to-back direction and abut against the front and back sides of the mating groove, respectively.

[0011] Preferably, the upper sidewall of the rotating frame has an abutment interface on the side near the middle frame. A protective frame is fixedly connected to the lower inner wall of the bottom fixed frame, and a baffle is provided inside the protective frame. A limiting slide is fixedly connected to the lower inner wall of the bottom fixed frame, and the limiting slide is located below the bottom fixed frame. A sliding frame is slidably connected inside the bottom fixed frame, and the lower end of the sliding frame passes through the limiting slide and extends into the abutment interface. A sliding rod is fixedly connected to the front inner wall of the protective frame, and the rear end of the sliding rod passes through the sliding frame and is fixedly connected to the front inner wall of the protective frame. A traction spring is sleeved on the sliding rod, and the front and rear ends of the traction spring are respectively connected to the abutment interface. The front inner wall of the protective frame is fixedly connected to the front end of the sliding frame. A contact block one is fixedly connected to the rear inner wall of the protective frame. A contact block two is provided in front of the contact block one. A limit rod and a limit slide rod one are fixedly connected to the front end of the contact block two. The front ends of the limit rod and the limit slide rod one both pass through the sliding frame and are fixedly connected to the baffle. An abutment spring one is sleeved on the limit slide rod one. The front and rear ends of the abutment spring one are fixedly connected to the baffle and the adjacent side wall of the sliding frame, respectively. Auxiliary protective strips are fixedly connected to both the front and rear ends of the sliding frame. The ends of the two auxiliary protective strips that are far apart from each other are fixedly connected to the front and rear inner walls of the limit slide, respectively.

[0012] Preferably, a smoke extractor is provided inside the middle frame, and a smoke hood is fixedly connected to the upper inner wall of the middle frame. The smoke hood is connected to the negative pressure end of the smoke extractor.

[0013] Preferably, a pressure detection sensor is fixedly connected to the inner wall of the side of the outer frame away from the stop bar.

[0014] Compared with related technologies, the two-way escape fireproof roller shutter for mine fire fighting provided by the present invention has the following beneficial effects: 1. This invention provides a two-way fireproof escape roller shutter for mine fire fighting. The device has a roller shutter partition mechanism and a passage mechanism symmetrically arranged on the front and rear sides of the middle frame. Together with the transfer buffer zone in the center of the middle frame, it forms a two-way fireproof escape passage, which is suitable for the multi-directional operation scenario in underground mines. It breaks through the escape limitations of traditional one-way fireproof roller shutters and can meet the escape needs of personnel working in both sides at the same time. It effectively avoids the congestion and entrapment problems caused by a single escape passage and improves the efficiency of personnel escape in mine fires.

[0015] 2. This invention provides a two-way escape fireproof roller shutter for mine fire fighting. The device features two centrally symmetrical one-way opening mechanical locking mechanisms within the transfer buffer zone. Through the cooperation of abutment bars, stop bars, and spring assemblies, one-way linkage control of the two side passage doors is achieved. When one side passage door is opened for personnel escape, the mechanical locking mechanism automatically locks the other side passage door, preventing the inward-opening door frame from opening. Structurally, this avoids the cross-spread of fire and smoke caused by the interconnection of the two passages, ensuring the transfer buffer zone becomes a safe fire-resistant transfer space. Furthermore, the one-way opening mechanical structure requires no complex electrical control and can still operate normally during power outages in case of fire, improving the reliability of the device.

[0016] 3. This invention provides a two-way escape fireproof roller shutter for mine fire fighting. A sealing strip-shaped airbag is set in the matching groove of the main body of the roller shutter, and an auxiliary strip-shaped airbag is set in the matching slide of the flip frame. An air pump can inflate the airbags to fit them against the front and rear sides of the main body of the roller shutter, filling the gap between the roller shutter and the frame. This sealing structure greatly improves the sealing performance of the fireproof roller shutter, effectively blocks the penetration of fire and smoke, and improves the fireproof isolation effect. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of a partial explosion structure of the present invention; Figure 3 This is a three-dimensional cross-sectional structural diagram of the storage box of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the main limiting frame of the present invention; Figure 5 for Figure 4 Enlarged view of a portion of point A in the middle; Figure 6 This is a schematic diagram of the three-dimensional structure of the roller blind body of the present invention; Figure 7 for Figure 6 Enlarged view of a section at point B in the middle; Figure 8 This is a schematic diagram of the inner frame in the open state of the present invention; Figure 9 This is a schematic diagram of the flip-frame in the open state of this novel invention; Figure 10 for Figure 9 Enlarged view of a section at point C; Figure 11 This is a three-dimensional cross-sectional structural diagram of the protective frame of the present invention; Figure 12 This is a schematic diagram showing the positional relationship between the two inward-opening door frames of the present invention; Figure 13 This is a schematic diagram showing the newly selected location of the smoke hood in this utility model; Figure 14 for Figure 13 Enlarged view of a section at point D; Figure 15 This is a schematic diagram showing the location of the submersible pump according to the present invention; Figure 16 This is a schematic diagram illustrating the one-way door opening mechanical lock mechanism of the present invention; Figure 17 This is a schematic diagram illustrating the structure of one of the one-way door opening mechanical lock mechanisms of the present invention; Figure 18 for Figure 17 Enlarged view of a section at point E in the middle.

[0018] In the diagram: 1. Middle frame; 101. Transfer buffer zone; 102. Top water tank; 103. Submersible pump; 104. Smoke extractor; 105. Smoke hood; 106. Inflation pump; 2. Roller shutter partition mechanism; 201. Storage box; 202. Rewinding motor; 203. Main limit frame; 204. Roller shutter body; 2041. Reinforcing rod; 2042. Fireproof cloth; 2043. Connecting belt; 2044. Abutment wheel; 205. Connecting hole one; 206. Rewinding rod; 207. Rewinding track; 208. Connecting hole two; 209. Matching groove; 210. Sealing strip airbag; 3. Channel mechanism; 301. Bottom fixing frame; 302. Flipping frame; 303. Flipping servo; 304. Inward opening door frame; 305. Fireproof door panel; 306. Matching slide; 307. Auxiliary strip airbag; 308 309. Abutment Spring 1; 310. Abutment Interface; 311. Protective Frame; 312. Sliding Rod; 313. Sliding Frame; 314. Traction Spring; 315. Contact Block 1; 316. Contact Block 2; 317. Limiting Slide; 318. Auxiliary Protective Belt; 319. Baffle; 320. Limiting Rod 1; 4. Control Box; 5. Control Board; 6. Smoke and Temperature Composite Detector; 7. One-Way Door Opening Mechanical Lock Mechanism; 701. Fixing Frame; 702. Sliding Frame; 703. Connecting Block 1; 704. Transmission Rod; 705. Abutment Outer Frame; 706. Stop Rod; 707. Abutment Crossbar; 708. Connecting Block 2; 709. Sliding Block; 710. Pressure Detection Sensor; 711. Limiting Slide 2; 712. Abutment Spring 2; 8. Atomizing Water Spray Pipe 1; 9. Atomizing Water Spray Pipe 2. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] Example 1: Please see Figures 1-7 The present invention provides a technical solution: a two-way escape fireproof roller shutter for mine fire fighting, including a middle frame 1, the middle frame 1 is used to build an overall installation frame and form a transfer protection space. The front and rear sides of the middle frame 1 are provided with roller shutter partition mechanism 2 for fireproof isolation of fire area, passage mechanism 3 for personnel passage and escape, control box 4 for integrated circuit and control elements, and control board 5 for manual operation and command input. The front and rear roller shutter partition mechanism 2 and the two passage mechanisms 3 are centrally symmetrical. The side of the two roller shutter partition mechanisms 2 away from the middle frame 1 is provided with a smoke temperature composite detector 6 for real-time monitoring of ambient smoke temperature and triggering fire linkage. The center of the middle frame 1 is the transfer buffer zone 101, which is a temporary transfer point for personnel to escape. The transfer buffer zone 101 is equipped with two one-way opening mechanical lock mechanisms 7 arranged symmetrically in the center. The one-way opening mechanical lock mechanism 7 does not require complex electrical control and can still work normally when the power is cut off during a fire, thus improving the reliability of the device. The roller shutter partition mechanism 2 includes a storage box 201 fixed on the middle frame 1. A U-shaped main limiting frame 203 is fixedly connected to the lower end of the storage box 201. The open end of the main limiting frame 203 points towards the channel mechanism 3. A winding motor 202 is provided at the end of the storage box 201 away from the channel mechanism 3. The roller shutter body 204 is wound up inside the storage box 201. When the device is not in use, the roller shutter body 204 is wound up inside the storage box 201. At the same time, the flipping frame 302 is flipped by the flipping servo motor 303, flipping the flipping frame 302 and the inward opening door frame 304 to a position close to the inner wall of the mine. A winding rod 206 is fixedly connected to the output end of the winding motor 202. One end of the winding rod 206 near the channel mechanism 3 passes through the side wall of the storage box 201 near the winding motor 202 and is rotatably connected to the inner wall of the storage box 201 near the channel mechanism 3. A connecting hole 205 is provided on the lower side wall of the storage box 201. A mating groove 209 is provided on the inner side wall of the main limiting frame 203. A connecting hole 208 is provided on the upper inner wall of the mating groove 209. The connecting hole 205 and the connecting hole 208 are connected. The roller shutter body 2... The lower end of the roller shutter body 204 passes through the connecting hole 1 205 and the connecting hole 208 in sequence and extends to the inner side of the main limiting frame 203. The upper end of the roller shutter body 204 is connected to the winding rod 206. The flip frame 302 is provided with a matching slide 306 at one end near the main limiting frame 203. The inner walls of the front and rear sides of the matching slide 306 are provided with auxiliary strip airbags 307. The inner walls of the front and rear sides of the matching groove 209 are provided with sealing strip airbags 210. An air pump 106, auxiliary strip airbags 307 and sealing strip airbags are provided in the middle frame 1. Both 210 are connected to the output end of the air pump 106. In case of fire, the channel mechanism 3 closes. When contact block 1 314 and contact block 2 315 come into contact, the circuit of the winding motor 202 is connected. The winding motor 202 drives the winding rod 206 to rotate in the opposite direction. At this time, the roller shutter body 204 is unfolded. During the unfolding process, the left and right ends of the reinforcing rod 2041 slide in the winding track 207, the mating groove 209 and the mating slide 306. When the lowest reinforcing rod 2041 moves to the lowest position of the mating groove 2041, the roller shutter body 204 is unfolded. After the roller shutter is fully extended, it pauses in the groove 209. At this time, the main body 204 of the roller shutter is fully extended. The air pump 106 inflates the sealing strip airbag 210 and the auxiliary strip airbag 307. After inflation, the front and rear sealing strip airbags 210 and the auxiliary strip airbags 307 abut against the front and rear side walls of the main body 204 of the roller shutter, thereby achieving a seal at the position of the main body 204 of the roller shutter, filling the gap between the roller shutter and the frame, improving the sealing performance of the fireproof roller shutter, effectively blocking the penetration of fire and smoke, and improving the fireproof partition effect. The two auxiliary strip airbags 307 and the two sealing strip airbags 210 are located on the front and rear sides of the roller shutter body 204, respectively, which can achieve double sealing at the front and rear positions of the roller shutter body 204 and ensure the sealing effect. The storage box 201 has spiral winding tracks 207 on both the left and right inner walls. The lower end of the winding track 207 is connected to the connecting hole 205. The main body of the roller shutter 204 includes several reinforcing rods 2041 and several fireproof cloths 2042. The fireproof cloths 2042 and reinforcing rods 2041 are arranged alternately. The fireproof cloths 2042 and reinforcing rods 2041 are fixedly connected. The left and right ends of the reinforcing rods 2041 and the fireproof cloths 2042 extend into the mating grooves 209 and the mating slides 306, respectively. The distance between the inner walls of the spiral winding track 207, the mating grooves 209 and the mating slides 306 is the same. The upper end of the top reinforcing rod 2041 is fixedly connected to a connecting strap 2043. The upper end of the connecting strap 2043 is fixedly connected to the side wall of the winding rod 206. The left and right ends of the reinforcing rod 2041 are rotatably connected to two abutment wheels 2044. The two abutment wheels 2044 are symmetrically arranged in the front and back direction. The two abutment wheels 2044 abut against the front and back sides of the mating groove 209 respectively. During the movement of the roller shutter body 204, the abutment wheels 2044 rotate in the mating groove 209, making the movement of the roller shutter body 204 smoother.

[0021] Example 2: Please see Figures 8-12 As shown, based on Embodiment 1, the present invention provides a technical solution: the channel mechanism 3 includes a bottom fixed frame 301, a flip frame 302, and an inward-opening door frame 304. The bottom fixed frame 301 is fixed to the middle frame 1. A flip servo motor 303 is disposed inside the middle frame 1. The end of the flip frame 302 away from the main limiting frame 203 is hinged to the middle frame 1. The output end of the flip servo motor 303 passes through the lower side wall of the bottom fixed frame 301 and is fixedly connected to the upper end of the flip frame 302. The output end of the flip servo motor 303 is coaxially arranged with the central axis at the hinge point of the flip frame 302 and the middle frame 1. The end of the inward-opening door frame 304 away from the main limiting frame 203 is connected to the flip frame 302. 2. The inner wall on the side away from the main limiting frame 203 is hinged. Fireproof door panels 305 are provided on the inner side of both inward opening door frames 304. Atomizing water spray pipes 2 and 9 are provided on the front end of the flip frame 302 and the main limiting frame 203. In the event of a fire, the flip servo motor 303 drives the flip frame 302 to rotate. After the contact block 1 314 and the contact block 2 315 come into contact, the channel mechanism 3 is tightly attached to the middle frame 1. A sealing strip is provided on the rear end of the flip frame 302 to achieve a seal between the flip frame 302 and the middle frame 1. Water is supplied to the atomizing water spray pipes 2 and 9 through the submersible pump 103, thereby cooling and protecting the roller shutter body 204 and the fireproof door panel 305. A stop interface 309 is provided on the upper side wall of the rotating frame near the middle frame 1. A protective frame 310 is fixedly connected to the lower inner wall of the bottom fixed frame 301. A baffle 318 is provided inside the protective frame 310. A limiting slide 316 is fixedly connected to the lower inner wall of the bottom fixed frame 301. The limiting slide 316 is located below the bottom fixed frame 301. A sliding frame 312 is slidably connected inside the bottom fixed frame 301. The lower end of the sliding frame 312 passes through the limiting slide 316 and extends into the stop interface 309. The front inner wall of the protective frame 310 is fixedly connected to... A sliding rod 311 is connected, with its rear end passing through the sliding frame 312 and fixedly connected to the front inner wall of the protective frame 310. A traction spring 313 is sleeved on the sliding rod 311, with its front and rear ends fixedly connected to the front inner wall of the protective frame 310 and the front end of the sliding frame 312, respectively. A contact block 314 is fixedly connected to the rear inner wall of the protective frame 310, and a contact block 315 is provided in front of the contact block 314. A limit rod 319 and a limit sliding rod 320 are fixedly connected to the front end of the contact block 315. The front ends of the limiting rod 319 and the limiting slide rod 320 both penetrate the sliding frame 312 and are fixedly connected to the baffle 318. A retaining spring 308 is sleeved on the limiting slide rod 320. The front and rear ends of the retaining spring 308 are fixedly connected to the baffle 318 and the adjacent sidewalls of the sliding frame 312, respectively. Auxiliary protective strips 317 are fixedly connected to both the front and rear ends of the sliding frame 312. The ends of the two auxiliary protective strips 317 that are far apart from each other are fixedly connected to the inner walls of the front and rear sides of the limiting slide 316, respectively. When the flip frame 302 is open... Under the action of the traction spring 313, the front end of the sliding frame 312 abuts against the inner wall of the front side of the limiting slide 316. At this time, the first contact block 314 and the second contact block 315 separate. When the flip frame 302 is closed, the abutment interface 309 pushes the sliding frame 312 to slide along the sliding rod 311, thereby driving the second contact block 315 to move towards the first contact block 314. The second contact block 315 stops after contacting the first contact block 314. Under the action of the first abutment spring 308, the second contact block 315 is kept in close contact with the first contact block 314.

[0022] Example 3: Please see Figures 13-18As shown, based on Embodiment 1, the present invention provides a technical solution: a one-way door opening mechanical lock mechanism 7 includes a transmission rod 704, a U-shaped fixing frame 701 fixed on the inner side wall of the intermediate frame 1, and an abutting outer frame 705. The fixing frame 701 is arranged horizontally, and the abutting outer frame 705 is arranged vertically. A sliding frame 702 is slidably connected to the fixing frame 701. A stop bar 706 is fixedly connected to the lower end of the sliding frame 702. A sliding block 709 is provided inside the abutting outer frame 705. A connecting block 708 is rotatably connected to the upper end of the sliding block 709. Block 1 703 and the two ends of the transmission rod 704 are fixedly connected to the side walls of connecting block 1 703 and connecting block 2 708 respectively. Two limiting slide rods 2 711 are fixedly connected to the rear inner wall of the outer frame 705. The front end of the limiting slide rod 2 711 passes through the sliding block 709 and is fixedly connected to the front inner wall of the outer frame 705. An abutting spring 2 712 is sleeved on the limiting slide rod 2 711. The front and rear ends of the abutting spring 2 712 are fixedly connected to the rear side wall of the sliding block 709 and the rear inner wall of the outer frame 705 respectively. An abutting crossbar 707 is fixedly connected to the lower end of the sliding block 709. Both the abutting crossbar 707 and the stop bar 706 are located inside the middle frame 1. The abutting crossbar 707 is located on the side of the inward opening door frame 304 away from the flip frame 302. The upper end face of the stop bar 706 is located below the lower end face of the abutting crossbar 707, thereby avoiding the position of the abutting crossbar 707 from affecting the limit of the stop bar 706 on the inward opening door frame 304. A top water tank 102 is provided at the upper end of the middle frame 1 to store emergency water. The top water tank 102 is provided with a water inlet for water replenishment. A submersible pump 103 is provided inside the top water tank 102. An atomizing water spray pipe 8 is provided at the lower end of the baffle 706. Both the atomizing water spray pipe 8 and the atomizing water spray pipe 9 are connected to the output end of the submersible pump 103. Water is sprayed to cool the interior of the transfer buffer 101 through the atomizing water spray pipe 8.

[0023] A smoke extractor 104 is installed inside the middle frame 1, and a smoke hood 105 is fixedly connected to the upper inner wall of the middle frame 1. The smoke hood 105 is connected to the negative pressure end of the smoke extractor 104. A pressure detection sensor 710 is fixedly connected to the inner wall of the outer frame 705 away from the stop bar 706. When a worker on one side needs to enter the other side, the door lock structure between the inward opening door frame 304 and the flip frame 302 is rotated to open the inward opening door frame 304 into the transfer buffer zone 101. After the inward opening door frame 304 is opened, the abutment crossbar 707 and the sliding block 709 are pushed to move along the limit slide bar 711. At this time, the pressure detection sensor 710 detects that the pressure has disappeared, and the smoke extractor 104 works. Through the cooperation of the smoke extractor 104 and the smoke hood 105, the smoke entering the transfer buffer zone 101 can be extracted and discharged through the mine's explosion-proof smoke exhaust pipe.

[0024] Working principle: In the event of a fire, the tilting servo motor 303 drives the tilting frame 302 to tilt, and the contact port 309 pushes the sliding frame 312 to slide along the sliding rod 311. When the first contact block 314 contacts the second contact block 315, the circuit of the winding motor 202 is connected. The winding motor 202 drives the winding rod 206 to rotate in the opposite direction, at which time the roller shutter body 204 is unfolded. During the unfolding process, the left and right ends of the reinforcing rod 2041 slide in the winding track 207, the mating groove 209 and the mating slide 306. When the lowest reinforcing rod 2041 moves into the mating groove 209 at the lowest position, it stops. At this time, the roller shutter... When the main body 204 is fully extended, the air pump 106 inflates the sealing strip airbags 210 and auxiliary strip airbags 307. After inflation, the two sets of sealing strip airbags 210 and auxiliary strip airbags 307 abut against the front and rear side walls of the main body 204, thereby sealing the position of the main body 204 and filling the gap between the shutter and the frame. This improves the sealing performance of the fireproof shutter, effectively blocks the penetration of fire and smoke, and enhances the fireproof partition effect. At the same time, the submersible pump 103 supplies water to the atomizing water spray pipe 8 to spray water on the outside of the shutter partition mechanism 2 for cooling, thus minimizing the damage to the equipment caused by fire. When a worker needs to enter from one side to the other, the door lock structure between the inward-opening door frame 304 and the flip frame 302 is rotated to open the inward-opening door frame 304 into the transfer buffer zone 101. After the inward-opening door frame 304 is opened, the abutment crossbar 707 and the sliding block 709 are pushed to move along the limit slide bar 711. At this time, the pressure detection sensor 710 detects that the pressure has disappeared, and the smoke extractor 104 works. The smoke extractor 104 works with the smoke hood 105 to draw away the smoke that has entered the transfer buffer zone 101 and discharge the smoke through the mine's explosion-proof smoke exhaust pipe. At the same time, the submersible pump 103 supplies water to the atomizing water spray pipe 8 to cool the environment of the transfer buffer zone 101. When personnel push open the inward-opening door frame 304 during escape, the sliding block 709 moves along the limit sliding rod 711, abutting against the crossbar 707 and sliding block 709. As the sliding block 709 moves, it drives the sliding frame 702 to move horizontally on the fixed frame 701 via the transmission rod 704, thereby pushing the stop bar 706 to the rear of another inward-opening door frame 304. At this time, it blocks the other inward-opening door frame 304, thus preventing the other inward-opening door frame 304 from being accidentally opened and avoiding the cross-spread of fire and smoke caused by the interconnection of the two passages. At the same time, it ensures that the transfer buffer zone 101 becomes a safe fireproof transfer space. In addition, the mechanical structure of the one-way opening door does not require complex electrical control and can still work normally when the power is cut off during a fire, which improves the reliability of the device. After the inward-opening door frame 304 is closed, the sliding block 709 and the abutting crossbar 707 are reset under the action of the abutting spring 712. At this time, the inward-opening door frame 304 is closed and the stop bar 706 is moved away from the rear side of the other inward-opening door frame 304. At this time, the other inward-opening door frame 304 can be opened to escape.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A two-way escape fireproof roller shutter for mine fire fighting, comprising a middle frame (1), characterized in that: The front and rear sides of the middle frame (1) are provided with a roller shutter partition mechanism (2), a channel mechanism (3), a control box (4) and a control board (5), and the two roller shutter partition mechanisms (2) and the two channel mechanisms (3) are arranged in a centrally symmetrical manner. The center of the middle frame (1) is a transfer buffer (101), and two one-way opening mechanical lock mechanisms (7) are arranged in the transfer buffer (101) in a centrally symmetrical manner. The roller blind partition mechanism (2) includes a storage box (201) fixed on the middle frame (1). A U-shaped main limiting frame (203) is fixedly connected to the lower end of the storage box (201). The opening end of the main limiting frame (203) points to the channel mechanism (3). A winding motor (202) is provided at the end of the storage box (201) away from the channel mechanism (3). The main body of the roller blind (204) is wound up inside the storage box (201). The channel mechanism (3) includes a bottom fixed frame (301), a flip frame (302), and an inward-opening door frame (304). The bottom fixed frame (301) is fixed on the middle frame (1). A flip servo motor (303) is provided inside the middle frame (1). The end of the flip frame (302) away from the main limiting frame (203) is hinged to the middle frame (1). The output end of the flip servo motor (303) passes through the lower side wall of the bottom fixed frame (301) and is connected to the flip frame (302). The upper end is fixedly connected, and the output end of the flipping servo (303) is coaxially set with the central axis at the hinge of the flipping frame (302) and the middle frame (1). The end of the inner opening door frame (304) away from the main limit frame (203) is hinged to the inner wall of the flipping frame (302) away from the main limit frame (203). Fireproof door panels (305) are provided on the inner side of both inner opening door frames (304). Atomizing water spray pipe 2 (9) is provided on the front end of the flipping frame (302).

2. The fireproof roller shutter for two-way escape in mines according to claim 1, characterized in that: The one-way door opening mechanical lock mechanism (7) includes a transmission rod (704), a U-shaped fixing frame (701) fixed on the inner side wall of the middle frame (1), and an abutting outer frame (705). The fixing frame (701) is arranged horizontally, and the abutting outer frame (705) is arranged vertically. A sliding frame (702) is slidably connected to the fixing frame (701). A stop bar (706) is fixedly connected to the lower end of the sliding frame (702). A sliding block (709) is provided inside the abutting outer frame (705). A connecting block two (708) is rotatably connected to the upper end of the sliding block (709), and a connecting block one (703) is rotatably connected to the upper end of the sliding block (709). The two ends of the moving rod (704) are fixedly connected to the side walls of the connecting block 1 (703) and the connecting block 2 (708), respectively. Two limiting slide rods 2 (711) are fixedly connected to the rear inner wall of the abutting frame (705). The front end of the limiting slide rod 2 (711) passes through the sliding block (709) and is fixedly connected to the front inner wall of the abutting frame (705). An abutting spring 2 (712) is sleeved on the limiting slide rod 2 (711). The front and rear ends of the abutting spring 2 (712) are fixedly connected to the rear side wall of the sliding block (709) and the rear inner wall of the abutting frame (705), respectively. An abutting crossbar (707) is fixedly connected to the lower end of the sliding block (709).

3. The fireproof rolling shutter for two-way escape in mines according to claim 2, characterized in that: The abutting crossbar (707) and the stop bar (706) are both located inside the middle frame (1). The abutting crossbar (707) is located on the side of the inward opening door frame (304) away from the flip frame (302). The upper end face of the stop bar (706) is located below the lower end face of the abutting crossbar (707). The upper end of the middle frame (1) is provided with a top water tank (102), and a submersible pump (103) is provided inside the top water tank (102). The lower end of the baffle (706) is provided with an atomizing water spray pipe (8), and the atomizing water spray pipe (8) and the atomizing water spray pipe (9) are both connected to the output end of the submersible pump (103).

4. The fireproof roller shutter for two-way escape in mines according to claim 1, characterized in that: The output end of the winding motor (202) is fixedly connected to a winding rod (206). The end of the winding rod (206) near the channel mechanism (3) passes through the side wall of the storage box (201) near the winding motor (202) and is rotatably connected to the inner wall of the storage box (201) near the channel mechanism (3). A connecting hole 1 (205) is provided on the lower side wall of the storage box (201). A mating groove (209) is provided on the inner side wall of the main limiting frame (203). A connecting hole 2 (208) is provided on the upper inner wall of the mating groove (209). The connecting hole 1 (205) and the connecting hole 2 (208) are connected. The lower end of the roller blind body (204) passes through the connecting hole 1 (205) and the connecting hole 2 (208) in sequence. The connecting hole 1 (205) and connecting hole 2 (208) extend to the inside of the main limiting frame (203). The upper end of the roller shutter body (204) is connected to the winding rod (206). The flip frame (302) is provided with a matching slide (306) at one end near the main limiting frame (203). The inner walls of the front and rear sides of the matching slide (306) are provided with auxiliary strip airbags (307). The inner walls of the front and rear sides of the matching groove (209) are provided with sealing strip airbags (210). An air pump (106) is provided in the middle frame (1). The auxiliary strip airbags (307) and the sealing strip airbags (210) are both connected to the output end of the air pump (106). The two auxiliary strip airbags (307) and the two sealing strip airbags (210) are located on the front and rear sides of the roller shutter body (204), respectively.

5. A two-way escape fireproof roller shutter for mine fire fighting according to claim 4, characterized in that: The storage box (201) has spiral winding tracks (207) on both the left and right inner walls. The lower end of the winding track (207) is connected to the connecting hole (205). The main body of the roller shutter (204) includes several reinforcing rods (2041) and several fireproof cloths (2042). The fireproof cloths (2042) and reinforcing rods (2041) are arranged alternately. The fireproof cloths (2042) and reinforcing rods (2041) are fixedly connected. The left and right ends of the reinforcing rod (2041) and the fireproof cloth (2042) extend into the mating groove (209) and the mating slide (306) respectively. The distance between the inner walls of the front and rear sides of the spiral winding track (207), the mating groove (209) and the mating slide (306) is the same. The upper end of the top reinforcing rod (2041) is fixedly connected to the connecting strip (2043), and the upper end of the connecting strip (2043) is fixedly connected to the side wall of the winding rod (206).

6. A two-way escape fireproof roller shutter for mine fire fighting according to claim 5, characterized in that: The reinforcing rod (2041) has two abutting wheels (2044) rotatably connected to both the left and right ends. The two abutting wheels (2044) are symmetrically arranged in the front and back direction, and the two abutting wheels (2044) abut against the front and back sides of the mating groove (209) respectively.

7. A two-way escape fireproof roller shutter for mine fire fighting according to claim 1, characterized in that: An abutment (309) is provided on the upper side wall of the rotating frame near the middle frame (1). A protective frame (310) is fixedly connected to the lower inner wall of the bottom fixed frame (301). A baffle (318) is provided inside the protective frame (310). A limiting slide (316) is fixedly connected to the lower inner wall of the bottom fixed frame (301). The limiting slide (316) is located below the bottom fixed frame (301). A sliding connection is provided inside the bottom fixed frame (301). A sliding frame (312) has its lower end passing through a limiting slide rail (316) and extending into an abutment interface (309). A sliding rod (311) is fixedly connected to the inner front wall of the protective frame (310). The rear end of the sliding rod (311) passes through the sliding frame (312) and is fixedly connected to the inner front wall of the protective frame (310). A traction spring (313) is sleeved on the sliding rod (311). The front and rear ends of the traction spring (313) are respectively connected to the protective frame. The front inner wall of the frame (310) is fixedly connected to the front end of the sliding frame (312). A contact block one (314) is fixedly connected to the rear inner wall of the protective frame (310). A contact block two (315) is provided on the front side of the contact block one (314). A limit rod (319) and a limit slide rod one (320) are fixedly connected to the front end of the contact block two (315). The front ends of the limit rod (319) and the limit slide rod one (320) both penetrate the sliding frame (312) and are connected to it. The baffle (318) is fixedly connected, and the limiting slide rod (320) is fitted with a first abutment spring (308). The front and rear ends of the first abutment spring (308) are fixedly connected to the adjacent side walls of the baffle (318) and the sliding frame (312), respectively. The front and rear ends of the sliding frame (312) are fixedly connected with auxiliary protective belts (317). The ends of the two auxiliary protective belts (317) that are far apart from each other are fixedly connected to the inner walls of the front and rear sides of the limiting slide (316).

8. A two-way escape fireproof roller shutter for mine fire fighting according to claim 1, characterized in that: A smoke extractor (104) is provided inside the middle frame (1), and a smoke hood (105) is fixedly connected to the upper inner wall of the middle frame (1). The smoke hood (105) is connected to the negative pressure end of the smoke extractor (104).

9. A two-way escape fireproof roller shutter for mine fire fighting according to claim 2, characterized in that: A pressure detection sensor (710) is fixedly connected to the inner wall of the side of the abutting frame (705) away from the stop bar (706).

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