A type of fire escape door

Abstract

This invention relates to the field of fire door technology, specifically disclosing a fire escape door, including a door frame, an escape door body connected to an internal pivot, a threshold fixedly connected to the bottom of the door frame, a baffle installed inside the door frame, a closing assembly fixedly connected to the rear side of the door frame, a connecting assembly fixedly connected to the rear side of the door frame, a rack plate slidably connected inside the connecting assembly, a rack plate 2 fixedly connected to the top of the rack plate 1, and a limit rod slidably connected inside the rack plate 1. When the escape door body is opened or closed, the fixed block rotates, driving the pulley to push the rack plate 1 and rack plate 2, and rack plate 2 pushes the limit plate. When the oil injection rod rotates one revolution and coincides with the oil injection hole, the lubricating oil in the oil reservoir is delivered to the door pivot through the oil injection rod, effectively preventing the door pivot from rusting and jamming due to lack of lubricating oil, avoiding door opening delays caused by door pivot jamming, improving emergency evacuation efficiency, and ensuring that vulnerable groups such as the elderly and children can escape smoothly during a fire.

Description

Technical Field

[0001] This invention relates to the field of fire door technology, specifically a fire escape door. Background Technology

[0002] Normally closed fire escape doors mainly consist of a fireproof door frame, a fireproof door leaf, a fireproof door closer, supporting hardware (door lock, door hinges, door handles, etc.), and sealing strips. The fireproof door frame and door leaf are made of fireproof materials such as steel, rock wool, and calcium silicate board, which can effectively resist fire. The door closer keeps the door tightly closed under normal conditions. The sealing strip expands when heated to fill the door gaps. Its working principle is that it is normally closed, but is pushed open when people evacuate. After escaping, the door automatically closes under the action of the door closer, thereby effectively preventing the spread of smoke and flames, buying time for people to evacuate, and controlling the spread of fire.

[0003] As a critical facility for building fire safety, fire escape doors are often difficult to open due to their weight and the presence of door closers and sequencers. This excessive force can severely hinder the emergency evacuation of vulnerable groups such as the elderly and children. Furthermore, the mechanical linkages of escape doors are prone to rust and jamming, causing delays in opening. While the thresholds designed for fireproof sealing meet regulatory requirements, they can easily cause people to trip in low-visibility escape scenarios. Gaps between the door frame and the wall caused by installation errors or building settlement can lead to smoke leakage during a fire. The bottom sealing strip is susceptible to failure due to foot traffic, aging, and high temperatures. In addition, the lack of effective monitoring of the door's closed state can easily result in smoke leakage going undetected in the early stages of a fire. Regarding emergency guidance and user experience, the doors lack effective signage and guidance in smoky environments, traditional light indicators have limited visibility, and the door opening direction markings are unclear. Therefore, we propose a new type of fire escape door. Summary of the Invention

[0004] The purpose of this invention is to provide a fire escape door to address the numerous limitations of existing fire escape doors mentioned in the background art: their heavy weight and the presence of door closers and sequencers result in high opening resistance; mechanical linkages are prone to rust and jamming, making the escape door difficult to push; insufficient sealing between the bottom sealing strip and the threshold leads to smoke leakage, causing further spread of the disaster; and traditional illuminated signs have limited visibility, resulting in a lack of effective marking and guidance in smoky environments, thus reducing the door's visibility in smoke and making it difficult for users to quickly escape the disaster.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fire escape door, comprising a door frame, an escape door body connected to an internal pivot, a threshold fixedly connected to the bottom of the door frame, a baffle installed inside the door frame, a closing assembly fixedly connected to the rear side of the door frame, a connecting assembly fixedly connected to the rear side of the door frame, a rack plate slidably connected inside the connecting assembly, a rack plate 2 fixedly connected to the top of the rack plate 1, a limit rod slidably connected inside the rack plate 1, a spring 1 sleeved on the outside of the limit rod, a protective shell fixedly connected to the rear side of the door frame, a vertical rod fixedly connected inside the protective shell, a gear rotatably connected to the outside of the vertical rod, a limit groove and an oil injection hole on the top of the gear, an oil reservoir fixedly connected inside the protective shell, an oil injection rod installed on both the oil reservoir and the outside of the protective shell, a piston cover inside the oil reservoir, a limit assembly fixedly connected inside the door frame, two mounting grooves inside the threshold, connecting blocks slidably connected inside the mounting grooves, a sealing block fixedly connected to the adjacent side of the two connecting blocks, two jacking assemblies fixedly connected inside the threshold, and an identification assembly installed on the front side of the escape door body.

[0006] The escape door has a handle on the front and a lock on the back.

[0007] The closing assembly has a fixed cover installed on the rear side, an installation shaft is fixedly connected inside the fixed cover, a torsion spring is sleeved on the outside of the installation shaft, and a traction rope is fixedly connected to the other end of the torsion spring. An installation block two is fixedly connected to the rear side of the escape door body, a rotating shaft is fixedly connected inside the installation block two, a connecting ring is fixedly connected to the outside of the rotating shaft, and the other end of the traction rope is fixedly connected to the outside of the connecting ring.

[0008] Among them, an installation block is fixedly connected to the top rear side of the escape door body, and a support wheel is connected to the internal shaft of the installation block.

[0009] The connecting component has a sliding groove inside, a pulley is slidably connected inside the sliding groove, a connecting rod is rotatably connected to the bottom of the pulley, a connecting rod is fixedly connected to the bottom of the connecting rod, a connecting rod is fixedly connected to the bottom of the connecting rod, a fixing block is rotatably connected to the bottom of the connecting rod, and the fixing block is fixedly connected to the outside of the escape door body.

[0010] The limiting component has a telescopic rod fixedly connected inside, a spring is sleeved on the outside of the telescopic rod, and a limiting plate is fixedly connected to the bottom of the telescopic rod.

[0011] The push assembly has an externally slidably connected inclined block 1, and two through holes are opened on the outside of the sealing block. Two mounting plates 1 are fixedly connected to the outside of the inclined block 1. An mounting rod is rotatably connected inside the mounting plate 1. The mounting rod is rotatably connected to the outside of the mounting plate 2. A sealing groove is opened at the bottom of the escape door body. An inclined block 2 is fixedly connected inside the sealing groove. A spring 3 is sleeved on the outside of the push assembly.

[0012] The sign component has a first mixing layer inside, a paraffin layer behind the first mixing layer, and a second mixing layer behind the paraffin layer.

[0013] The top of the sealing block contacts the inside of the sealing groove, and the bottom of the second inclined block contacts the top of the first inclined block.

[0014] One side of the spring is fixedly connected to the inside of the protective shell, and the other side of the spring is fixedly connected to the outside of the rack plate.

[0015] This invention has at least the following beneficial effects:

[0016] In use, when the escape door body is opened and closed, the fixed block rotates, driving the pulley to push rack plate one and rack plate two. Rack plate two pushes the limit plate. When the oil injection rod rotates one revolution and coincides with the oil injection hole, the lubricating oil in the oil reservoir is delivered to the door hinge through the oil injection rod, effectively preventing the door hinge from rusting and jamming due to lack of lubrication, avoiding door opening delays caused by door hinge jamming, improving emergency evacuation efficiency, and ensuring that vulnerable groups such as the elderly and children can escape smoothly during a fire. The inclined block two at the bottom of the escape door body presses against inclined block one, and through the lever principle, drives mounting plate one, mounting rod, and mounting plate two to push the sealing block, causing the sealing block to slide in. The sealing groove effectively seals the escape door body and the threshold, preventing smoke from spreading from the connection point. When the escape door body is opened, spring three pushes the inclined block one, causing the sealing block to drop and become flush with the threshold, preventing people from tripping over the sealing block and ensuring safe passage. The mixed layer one of luminol agent and the mixed layer two of hydrogen peroxide agent in the sign component are separated by a paraffin layer. When a fire produces dense smoke and the temperature rises, the paraffin layer merges, and the two mixed layers combine to provide clear markings, solving the problem of limited visibility distance of traditional light signs, helping people quickly find the escape door in a smoke-filled environment, and improving the emergency guidance effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the door frame structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the fixing block structure of the present invention;

[0020] Figure 4 For the present invention Figure 3 Enlarged view of A in the middle;

[0021] Figure 5 This is a schematic diagram of the inclined block structure of the present invention;

[0022] Figure 6 For the present invention Figure 5 Enlarged view of B in the middle;

[0023] Figure 7 This is a schematic diagram of the inclined block two structure of the present invention;

[0024] Figure 8 This is a schematic diagram of the closed component structure of the present invention;

[0025] Figure 9 This is a schematic diagram of the structure of the identification component of the present invention.

[0026] In the diagram: 1. Door frame; 101. Escape door body; 102. Threshold; 103. Baffle; 2. Door handle; 201. Lock body; 3. Closure assembly; 301. Fixing cover; 302. Mounting shaft; 303. Torsion spring; 304. Traction rope; 305. Mounting block one; 306. Support wheel; 307. Mounting block two; 308. Rotating shaft; 309. Connecting ring; 4. Connecting assembly; 401. Slide groove; 402. Pulley; 403. Connecting rod one; 404. Connecting rod; 405. Connecting rod two; 406. Fixing block; 5. Rack plate one; 501. Rack plate two; 502. Limiting rod; 503. Spring one; 504. Protective shell; 505. Upright pole; 506. Gear; 507. Limiting groove; 508. Oil injection hole; 509. Oil reservoir; 5010. Oil injection rod; 5011. Piston cover; 6. Limiting assembly; 601. Telescopic rod; 602. Spring II; 603. Limiting plate; 7. Mounting groove; 701. Connecting block; 702. Sealing block; 703. Pushing assembly; 704. Inclined block I; 705. Through hole; 706. Mounting plate I; 707. Mounting rod; 708. Mounting plate II; 709. Sealing groove; 7010. Inclined block II; 7011. Spring III; 8. Marking assembly; 801. Mixing layer I; 802. Paraffin layer; 803. Mixing layer II. Detailed Implementation

[0027] 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.

[0028] Example 1

[0029] Please see Figures 1 to 9This invention provides a technical solution: a fire escape door, including a door frame 1, an escape door body 101 connected to the inside of the door frame 1 by a rotating shaft, a threshold 102 fixedly connected to the bottom of the door frame 1, a baffle 103 installed inside the door frame 1, a closing assembly 3 fixedly connected to the rear side of the door frame 1, a connecting assembly 4 fixedly connected to the rear side of the door frame 1, a rack plate 5 slidably connected inside the connecting assembly 4, a rack plate 501 fixedly connected to the top of the rack plate 5, a limit rod 502 slidably connected inside the rack plate 502, a spring 503 sleeved on the outside of the limit rod 502, one side of the spring 503 fixedly connected to the inside of a protective shell 504, and the other side of the spring 503 fixedly connected to the outside of the rack plate 504, a protective shell 504 fixedly connected to the rear side of the door frame 1, a vertical rod 505 fixedly connected inside the protective shell 504, a gear 506 rotatably connected to the outside of the vertical rod 505, a limit groove 507 opened on the top of the gear 506, and an oil injection port opened on the top of the gear 506. An oil reservoir 509 is fixedly connected inside the protective shell 504 and the hole 508. Both the oil reservoir 509 and the protective shell 504 are equipped with oil injection rods 5010. A piston cover 5011 is installed inside the oil reservoir 509. A limit assembly 6 is fixedly connected inside the door frame 1. Two mounting grooves 7 are formed inside the sill 102. Connecting blocks 701 are slidably connected inside the mounting grooves 7. A sealing block 702 is fixedly connected to the adjacent side of the two connecting blocks 701. The sill 102 is fixed inside... Two push-actuating components 703 are connected, and an identification component 8 is installed on the front side of the escape door body 101. When the door is opened and closed, the escape door body 101 pulls the pulley 402 to slide through the fixing block 406 and the connecting rod group, pushing the rack plate 5 to mesh with the gear 506. The gear 506 rotates and drives the oil injection rod 5010 to move in the limiting groove 507. Each time it rotates, the oil injection rod 5010 coincides with the oil injection hole 508, and the oil reservoir 509 squeezes the lubricating oil to the door shaft to prevent rust and jamming.

[0030] A door handle 2 is installed on the front side of the escape door body 101, and a lock body 201 is installed on the rear side of the escape door body 101. The door handle 2 is fixedly installed on the front side of the escape door body 101 to provide a point of force for personnel. The door can be opened and closed by pushing and pulling the door handle 2 to meet the needs of rapid operation in emergency situations.

[0031] A fixing cover 301 is installed on the rear side of the closing component 3. An installation shaft 302 is fixedly connected inside the fixing cover 301. A torsion spring 303 is sleeved on the outside of the installation shaft 302. A traction rope 304 is fixedly connected to the other end of the torsion spring 303. An installation block 2 307 is fixedly connected to the rear side of the escape door body 101. A rotating shaft 308 is fixedly connected inside the installation block 2 307. A connecting ring 309 is fixedly connected to the outside of the rotating shaft 308. The other end of the traction rope 304 is fixedly connected to the outside of the connecting ring 309. An installation block 1 305 is fixedly connected to the top of the rear side of the escape door body 101. A support wheel 306 is connected to the rotating shaft inside the installation block 1 305. The torsion spring 303 is sleeved on the outside of the installation shaft 302. One end is fixed to the installation shaft 302, and the other end is connected to the traction rope 304. When the door is opened, the torsion spring 303 is stretched and stores force. After the door is released, the torsion spring 303 contracts and releases energy, pulling the door to close automatically through the traction rope 304.

[0032] The connecting component 4 has a sliding groove 401 inside, and a pulley 402 is slidably connected inside the sliding groove 401. A connecting rod 403 is rotatably connected to the bottom of the pulley 402. A connecting rod 404 is fixedly connected to the bottom of the connecting rod 403. A connecting rod 405 is fixedly connected to the bottom of the connecting rod 404. A fixing block 406 is rotatably connected to the bottom of the connecting rod 405. The fixing block 406 is fixedly connected to the outside of the escape door body 101. The connecting component 4 is fixedly connected to the rear side of the door frame 1. The sliding groove 401 inside is used to install the pulley 402 and other related components to realize the connection and transmission between the escape door body 101 and the rack plate 5.

[0033] A telescopic rod 601 is fixedly connected inside the limiting component 6. A second spring 602 is sleeved on the outside of the telescopic rod 601. A limiting plate 603 is fixedly connected to the bottom of the telescopic rod 601. The telescopic rod 601 moves upward under the push of the second rack plate 501, compressing the second spring 602. When the teeth of the second rack plate 501 disengage from the limiting plate 603, the second spring 602 releases energy, pushing the limiting plate 603 downward to reset, thus limiting the second rack plate 501.

[0034] The push assembly 703 is externally slidably connected to a first inclined block 704. Two through holes 705 are formed on the exterior of the sealing block 702. Two mounting plates 706 are fixedly connected to the exterior of the first inclined block 704. A mounting rod 707 is rotatably connected inside the first mounting plate 706. A second mounting plate 708 is rotatably connected to the exterior of the mounting rod 707. A sealing groove 709 is formed at the bottom of the escape door body 101. The top of the sealing block 702 contacts the interior of the sealing groove 709. The bottom of the second inclined block 7010 contacts the top of the first inclined block 704. The sealing groove 709... The door is fixedly connected to a second inclined block 7010, and a third spring 7011 is sleeved on the outside of the push assembly 703; a sealing block 702 is fixedly connected to the two connecting blocks 701 on the same side, and its top engages with the sealing groove 709 at the bottom of the escape door body 101. When the escape door body 101 is closed, the sealing block 702 moves upward and slides into the sealing groove 709 to achieve a seal between the door and the threshold 102 and prevent smoke from spreading; when the escape door body 101 is open, the sealing block 702 moves downward and is flush with the threshold 102 to prevent people from tripping.

[0035] The signage component 8 has a first mixing layer 801 inside, a paraffin layer 802 behind the first mixing layer 801, and a second mixing layer 803 behind the paraffin layer 802. The signage component 8 is installed on the front of the escape door body 101 and has the first mixing layer 801, the paraffin layer 802 and the second mixing layer 803 inside. It is used to provide clear signage in the event of a fire and help people quickly find the escape door.

[0036] To prevent the door hinges from rusting and jamming, thus delaying the opening of the fire escape door, the door body 101 can be opened and closed to rotate the fixed block 406. As the fixed block 406 rotates, it works in conjunction with the connecting rod 405 and the connecting rod 404 to pull the pulley 402 via the connecting rod 403. This causes the pulley 402 to slide inside the connecting assembly 4. When the pulley 402 slides within the connecting assembly 4, it pushes the rack 5. The rack 5 then slides inside the connecting assembly 4 along with the rack 501. Each time the rack 501 is pushed by the pulley 402, the top teeth of the rack 501 push the limiting plate 603 upwards, causing the limiting plate 603 to slide into the limiting assembly 6. After sliding into the next tooth, the telescopic rod 601... Spring 602 pushes the limiting plate 603, causing the limiting plate 603 to limit the rack plate 501, preventing the rack plate 501 from sliding continuously. Then, after the rack plate 5 is continuously pushed, it will mesh with the gear 506. Each time the rack plate 5 pushes towards the gear 506, it drives the gear 506 to rotate a certain angle. At the same time, the oil injection rod 5010 slides inside the limiting groove 507. After the oil injection rod 5010 rotates once inside the limiting groove 507, it will coincide with the oil injection hole 508. This causes the oil reservoir 509 to be squeezed downward by the piston cover 5011. The lubricating oil inside the oil reservoir 509 is delivered to the door hinge installed inside the door frame 1 through the bottom oil injection rod 5010, the oil injection hole 508, and the oil injection rod 5010 inside the protective shell 504. This prevents the door hinge from rusting and jamming due to lack of lubrication for a long time, which would make it difficult to open the door in the event of a disaster.

[0037] To prevent smoke from spreading from the connection between the escape door body 101 and the threshold 102 during fire, the inclined block 7010 at the bottom of the escape door body 101 will press down on the inclined block 704 when the door is closed. As the inclined block 704 slides downwards inside the threshold 102, it will cause the mounting plate 706 and mounting rod 707 to leverage the internal support block, working in conjunction with the mounting plate 708 to push the sealing block 702 upwards. This allows the sealing block 702 to slide into the sealing groove 70 when the escape door body 101 is closed. 9. Inside, the escape door body 101 and the threshold 102 are effectively sealed when closed, preventing smoke from entering and spreading after the door is closed. When the escape door body 101 is opened, the second inclined block 7010 disengages from the contact with the first inclined block 704. At this time, the third spring 7011 generates elastic force at the bottom of the first inclined block 704 to push the first inclined block 704 upward, causing the first inclined block 704 to rise and the sealing block 702 to fall downward, thus achieving a flush state with the threshold 102. This prevents people from falling when passing through the sealing block 702.

[0038] Because traditional light signs have limited visibility, a paraffin layer 802 can be used to separate a luminol-containing layer 1 (801) and a hydrogen peroxide-containing layer 2 (803) within the sign component 8. In the event of a fire, the generated smoke raises the surrounding temperature, causing the paraffin layer 802 between the two layers to fuse. This allows the two layers to mix. When luminol mixes with hydrogen peroxide, the hydrogen peroxide oxidizes the luminol. During this oxidation process, the chemical bonds in the luminol molecules break and recombine, generating excited-state 3-aminophthalate ions. When these excited-state ions return to their ground state, they release energy in the form of light, producing blue fluorescence, thus providing clear signage and helping people quickly locate escape routes.

[0039] Example 2

[0040] In this second embodiment, the other structures remain unchanged. The difference from the first embodiment is that when the escape door body 101 is pushed, the second mounting block 307 behind the door will work with the rotating shaft 308 and the connecting ring 309 to pull the traction rope 304. At the same time, the traction rope 304 is supported by the first mounting block 305 and the support wheel 306. When the traction rope 304 is stretched, it will pull and retract the torsion spring 303 inside the fixing cover 301. After the personnel leave, the retracted torsion spring 303 will pull the traction rope 304, finally causing the escape door body 101 to close.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] 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 fire escape door comprising a door frame (1), characterized in that: The door frame (1) is internally connected with an escape door body (101), the bottom of the door frame (1) is fixedly connected with a door sill (102), the inside of the door frame (1) is provided with a baffle (103), the rear side of the door frame (1) is fixedly connected with a closing assembly (3), the rear side of the door frame (1) is fixedly connected with a connecting assembly (4), the inside of the connecting assembly (4) is slidably connected with a rack plate one (5), the top of the rack plate one (5) is fixedly connected with a rack plate two (501), the inside of the rack plate one (5) is slidably connected with a limiting rod (502), the outside of the limiting rod (502) is sleeved with a spring one (503), the rear side of the door frame (1) is fixedly connected with a protective shell (504), the inside of the protective shell (504) is fixedly connected with a vertical rod (505), the outside of the vertical rod (505) is rotatably connected with a gear (506), the top of the gear (506) is provided with a limiting groove (507), the top of the gear (506) is provided with an oil injection hole (508), the inside of the protective shell (504) is fixedly connected with an oil storage cylinder (509), the outside of the oil storage cylinder (509) and the protective shell (504) is provided with an oil injection rod (5010), the inside of the oil storage cylinder (509) is provided with a piston cover (5011), the inside of the door frame (1) is fixedly connected with a limiting assembly (6), the inside of the door sill (102) is provided with two installation grooves (7), the inside of the installation groove (7) is slidably connected with a connecting block (701), the side close to the connecting block (701) is fixedly connected with a sealing block (702), the inside of the door sill (102) is fixedly connected with two top driving assemblies (703), the front side of the escape door body (101) is provided with an identification assembly (8). The inside of the connecting assembly (4) is provided with a sliding groove (401), the inside of the sliding groove (401) is slidably connected with a pulley (402), the bottom of the pulley (402) is rotatably connected with a connecting rod one (403), the bottom of the connecting rod one (403) is fixedly connected with a connecting rod (404), the bottom of the connecting rod (404) is fixedly connected with a connecting rod two (405), the bottom of the connecting rod two (405) is rotatably connected with a fixed block (406), the outside of the fixed block (406) is fixedly connected with the outside of the escape door body (101).

2. The fire escape door according to claim 1, characterized in that: The front side of the escape door body (101) is provided with a door handle (2), the rear side of the escape door body (101) is provided with a lock body (201).

3. The fire escape door according to claim 1, wherein: The rear side of the closing assembly (3) is provided with a fixed cover (301), the inside of the fixed cover (301) is fixedly connected with a mounting shaft (302), the outside of the mounting shaft (302) is sleeved with a torsional spring (303), the other end of the torsional spring (303) is fixedly connected with a traction rope (304), the rear side of the escape door body (101) is fixedly connected with a mounting block two (307), the inside of the mounting block two (307) is fixedly connected with a rotating shaft (308), the outside of the rotating shaft (308) is fixedly connected with a connecting ring (309), the other end of the traction rope (304) is fixedly connected to the outside of the connecting ring (309).

4. The fire escape door of claim 1, wherein: The top of the rear side of the escape door body (101) is fixedly connected with a mounting block one (305), the inside of the mounting block one (305) is pivotally connected with a supporting wheel (306).

5. The fire escape door of claim 1, wherein: The inside of the limiting assembly (6) is fixedly connected with a telescopic rod (601), the outside of the telescopic rod (601) is sleeved with a spring two (602), and the bottom of the telescopic rod (601) is fixedly connected with a limiting plate (603).

6. The fire escape door of claim 1, wherein: The outside of the jacking assembly (703) is slidably connected with an inclined block one (704), two through holes (705) are formed in the outside of the sealing block (702), the outside of the inclined block one (704) is fixedly connected with two mounting plates one (706), the inside of the mounting plate one (706) is pivotally connected with a mounting rod (707), the outside of the mounting rod (707) is pivotally connected with a mounting plate two (708), the bottom of the escape door body (101) is provided with a sealing groove (709), the inside of the sealing groove (709) is fixedly connected with an inclined block two (7010), and the outside of the jacking assembly (703) is sleeved with a spring three (7011).

7. The fire escape door according to claim 6, characterized in that: The top of the sealing block (702) is in contact with the inside of the sealing groove (709), and the bottom of the inclined block two (7010) is in contact with the top of the inclined block one (704).

8. The fire escape door of claim 1, wherein: One side of the spring one (503) is fixedly connected in the inside of the protection shell (504), and the other side of the spring one (503) is fixedly connected to the outside of the rack plate one (5).

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