Novel fireproof anti-explosion wind-pressure-resistant sliding door

Abstract

The novel fireproof anti-explosion wind-pressure-resistant sliding door comprises a door frame metal plate, a fireproof door leaf, a door closing self-locking assembly, automatic bolt mechanisms and a hydraulic mechanism, the door closing self-locking assembly is arranged at the position, corresponding to a self-locking plug, of a side support of the door frame metal plate, and the automatic bolt mechanisms are arranged at the upper position and the lower position in the fireproof door leaf correspondingly; when the door leaf of the fireproof door is closed, the door closing armature is inserted along the middle of the pair of anti-disengagement roller columns until the pair of anti-disengagement roller columns are buckled to the concave part of the rhombic part at the outer end of the self-locking plug, and the fork type hinging arm is pulled by the sliding sleeve through the connecting rod, so that the pair of anti-disengagement roller columns keep a clamping state for the self-locking plug; the tooth end of the bottom end of the anti-disengagement tooth is clamped with the tooth groove of the anti-disengagement ratchet wheel in a matched mode, so that the position of the fork type hinge arm is limited, namely the clamping state of the pair of anti-disengagement roller columns to the self-locking plug is kept, the self-locking plug is prevented from being disengaged from the pair of anti-disengagement roller columns, and the self-locking effect on the fireproof door leaf is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of fireproof doors, and in particular to a novel fireproof, explosion-resistant and wind-pressure-resistant sliding door. Background Art

[0002] Fire doors are important safety facilities in industrial and civil buildings, used to prevent the spread of fire and evacuate personnel. With the acceleration of urbanization and the increase in high-rise buildings, the frequency of fire accidents is also increasing, and the demand for fire doors is also growing. Fire doors can prevent the spread of fire when a fire occurs, buy precious time for personnel evacuation and fire rescue, thereby reducing casualties and property losses.

[0003] In the event of a tunnel fire or other emergency, the wind pressure resistant fire door can remain open or closed to ensure unobstructed evacuation and rescue channels, thereby protecting the lives of personnel. For example, application number CN201320750796.3 discloses a subway tunnel decompression fire door, which is composed of a door frame and a swing door leaf and a ridge-type guide sealing plate around its inner frame, as well as a sliding door panel in the door leaf and its supporting sliding return mechanism. The structure adopts a swing door opening method. Due to the special environment of the tunnel, it is easy to generate an air pressure difference on both sides of the fire door, which will make the fire door difficult to open, or cause a collision when it is opened quickly, causing damage to the fire door. For example, application number CN202111247778.9 discloses a hook-lock limited sliding door for urban rail transit, which can realize bidirectional translation of fire and explosion-proof doors, and the fire and explosion-proof doors are provided with a lock head, and the corresponding door frame is provided with a lock slot. The door lock formed by the lock head and the lock slot can resist the wind pressure acting on the front and back of the fire and explosion-proof door in the tunnel after being locked. However, there is still room for improvement in the wind pressure resistance performance and the convenience of opening and closing control of the fire door. Summary of the invention

[0004] In order to solve the above problems, the present invention proposes a new type of fireproof, explosion-proof and wind-pressure-resistant sliding door to more accurately solve the above problems.

[0005] The present invention is achieved through the following technical solutions: The present invention proposes a novel fireproof, explosion-proof and wind-pressure-resistant sliding door, comprising a door frame sheet metal, a fireproof door leaf, a door closing self-locking component, an automatic latch mechanism and a hydraulic mechanism, wherein a horizontally arranged main rail is arranged on the front side of the top of the door frame sheet metal, a plurality of upper hanging wheels are arranged on the top of the fireproof door leaf, and the upper hanging wheels arranged on the top of the fireproof door leaf are slidably connected to the main rail, a horizontally arranged secondary guide rail is arranged at the bottom corresponding to the fireproof door leaf, a lower slide groove is opened at the bottom of the fireproof door leaf, and the secondary guide rail is matched in the lower slide groove, a lock is arranged on one side of the fireproof door leaf, and two sides of the fireproof door leaf are provided with a lock. Handles are provided on the sides, a self-locking plug is provided on one side of the fire door leaf, a door frame sheet metal side bracket and a door closing self-locking component are provided at the position corresponding to the self-locking plug, the door closing self-locking component includes a self-locking component base box integrally formed with the door frame sheet metal side bracket, a pair of fork-type hinged arms are hinged inside the self-locking component base box, one end of the fork-type hinged arm close to the self-locking plug is transferred to a pair of anti-slip rollers, the other end of the fork-type hinged arm is hinged to the sliding sleeve through a connecting rod, the sliding sleeve slides on the sliding rod in cooperation, the sliding rod is horizontally fixed in the self-locking component base box, and an anti-slip spring is provided between the end of the sliding rod and the sliding sleeve Spring, automatic latch mechanisms are provided at the upper and lower positions inside the fire door leaf, and the automatic latch mechanism includes a horizontally arranged cam housing and a vertically arranged latch housing, the outer end of the cam housing is slidably inserted with a head, the inner end of the head is provided with a traction block, a lever arm is hingedly connected to the middle part of the cam housing, and one end of the lever arm is connected to the traction block through a pin, a top piece is provided at the bottom of the inner cavity of the latch housing, and the other end of the lever arm conflicts with the bottom of the top piece, a vertically arranged latch is slidably inserted at the top end of the latch housing, and a screw is provided at the bottom end of the latch Rod, a bolt adapter block is connected to the bottom of the screw rod, and a second return spring is connected between the bottom of the bolt adapter block and the top of the top piece, a latch is connected between the top of the inner cavity of the latch housing and the top of the bolt adapter block, a hydraulic mechanism is provided above the main rail, the hydraulic mechanism includes a horizontally placed hydraulic cylinder seat, one end of the hydraulic cylinder seat is connected to a telescopic rod, the outer end of the telescopic rod is connected to the top of the fire door leaf through a curved arm, a piston head is provided at the inner end of the telescopic rod, the piston head is slidably matched with the inner cavity wall of the hydraulic cylinder seat, and a door closing return spring is provided between one side of the inner cavity of the hydraulic cylinder seat and the piston head.

[0006] Furthermore, the auxiliary guide rail is provided with lower rollers which are arranged laterally at equal intervals, and the lower rollers provided on the auxiliary guide rail roll in contact with the side walls of the lower sliding groove opened at the bottom of the fire door leaf, and the upper and lower beams of the door frame sheet metal and the side close to the fire door leaf are provided with first side rollers which are arranged laterally at equal intervals, and the first side rollers roll in contact with the upper and lower side surfaces of the fire door leaf.

[0007] Furthermore, a first horizontal anti-falling guard beam is provided at the bottom of the fire door leaf and on the side away from the door frame sheet metal, a second horizontal anti-falling guard beam is provided at the top of the fire door leaf and on the side away from the door frame sheet metal, and a third horizontal anti-falling guard beam is provided at the upper part of the fire door leaf and on the side away from the door frame sheet metal. The first anti-falling guard beam, the second anti-falling guard beam and the third anti-falling guard beam are all provided with second rollers arranged laterally at equal intervals on the side close to the fire door leaf, and the second rollers roll in contact with the side of the fire door leaf.

[0008] Furthermore, an anti-slip ratchet is integrally formed at the cross-hinged point of the fork-type hinged arm, and a sliding pin bracket is integrally formed above the inner cavity of the self-locking component base box. A vertically arranged sliding pin is slidably connected to the sliding pin bracket, and an elastic telescopic rod is provided at the bottom end of the sliding pin. The bottom end of the elastic telescopic rod is provided with an anti-slip tooth, and the tooth end of the bottom end of the anti-slip tooth is engaged with the tooth groove of the anti-slip ratchet.

[0009] Furthermore, an anti-dropout armature is provided at the upper end of the sliding pin, and an anti-dropout electromagnet is provided at the top of the inner cavity of the self-locking component base box and at a position corresponding to the anti-dropout armature.

[0010] Furthermore, a control box is provided at the bottom of the inner cavity of the self-locking component base box, and a control panel is provided at the front side of the self-locking component base box. The control panel includes a fingerprint recognition panel and a control button input panel.

[0011] Furthermore, a door closing electromagnet is provided on the side bracket of the door frame sheet metal and located above the door closing self-locking assembly, and a door closing armature is embedded on the side of the fire door leaf close to the door closing electromagnet.

[0012] Furthermore, the upper and lower cross beams of the door frame sheet metal are provided with limit pin grooves corresponding to the positions of the latch pins, and the side brackets of the door frame sheet metal are provided with top pressure sheet metal corresponding to the positions of the top heads.

[0013] Furthermore, the inner cavity of the hydraulic cylinder seat is filled with buffer oil, and the two ends of the inner cavity of the hydraulic cylinder seat are connected by a fluid guide channel. A speed regulating screw is threaded along the outer side of the hydraulic cylinder seat, and the inner end of the speed regulating screw extends into the fluid guide channel.

[0014] Furthermore, a protective cover is provided on the top of the door frame sheet metal, and the protective cover is provided on the outside of the main rail, the second anti-falling guard beam and the hydraulic mechanism.

[0015] Beneficial effects of the present invention: 1. The present invention uses an upper hanging wheel provided on the top of the fire door leaf to be slidably connected to the main rail for sliding guidance of the fire door leaf. The lower roller provided on the secondary guide rail rolls against the side wall of the lower sliding groove provided at the bottom of the fire door leaf, limits the bottom guide of the fire door leaf, and improves the lateral pressure resistance of the fire door leaf. At the same time, the first side roller provided on the upper and lower cross beams of the first side roller and the first anti-falling guard beam, the second anti-falling guard beam and the second roller provided on the second anti-falling guard beam provide rolling support for both sides of the fire door leaf, which ensures the smoothness of the fire door leaf when it is opened and greatly improves the lateral pressure resistance of the fire door leaf. 2. When the fire door leaf of the present invention is closed, the door closing armature is inserted along the middle of the pair of anti-dropout rollers until the pair of anti-dropout rollers are buckled in the concave part of the rhombus part of the outer end of the self-locking plug, and under the action of the anti-dropout spring on the sliding sleeve, the sliding sleeve pulls the fork-type hinge arm through the connecting rod, so that the pair of anti-dropout rollers maintain the clamping state of the self-locking plug. After the self-locking plug is fully inserted and the pair of anti-dropout rollers are buckled, the tooth end of the bottom end of the anti-dropout tooth is matched with the tooth groove of the anti-dropout ratchet, thereby positioning the fork-type hinge arm. The limitation is to maintain the clamping state of the pair of anti-slip rollers on the self-locking plug, thereby preventing the self-locking plug from being separated from the pair of anti-slip rollers, thereby achieving the self-locking effect of the fire door leaf; the anti-slip electromagnet is energized through fingerprint recognition or password input, and the anti-slip armature at the upper end of the sliding pin is magnetically attracted, so that the anti-slip buckle teeth are separated from the tooth grooves on the anti-slip ratchet. At this time, the fire door leaf can be pulled to make the self-locking plug separate from between the pair of anti-slip rollers, so that the fire door leaf can be slid open; 3. After the fire door leaf is closed, the outer end of the plug contacts the top pressure sheet metal and then retracts into the cam housing, and the traction block connected to the inner end of the plug pulls the lever arm, so that the other end of the lever arm lifts the bottom end of the top piece, and then the outer end of the latch is pushed out and inserted into the limit pin groove provided by the upper and lower cross beams of the door frame sheet metal, further enhancing the lateral pressure resistance of the fire door leaf. When the fire door leaf is opened, the latch retracts into the latch housing under the action of the first return spring and the second return spring. The reinforced structure does not require manual intervention to strengthen the locking, and automatically completes the connection of the lateral pressure resistance structure of the fire door leaf; 4. After the fire door leaf of the present invention is opened, the telescopic rod is pushed under the action of the door closing reset spring, and the outer end of the telescopic rod drives the fire door leaf to move through the curved arm until the fire door leaf automatically slides and closes. During the process of resetting and closing the fire door leaf, the buffer oil on both sides of the piston head in the inner cavity of the hydraulic cylinder seat is balanced through the liquid guide channel, so that the fire door leaf is closed at a certain speed, avoiding the fire door leaf from closing too quickly and causing noise or damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a partial cross-sectional view of the three-dimensional structure of the present invention; Figure 2 for Figure 1 An enlarged view of a new type of fireproof, explosion-proof and wind-resistant sliding door; Figure 3 for Figure 1 The enlarged view of point B in the middle; Figure 4 It is a front side view of the three-dimensional structure of the present invention; Figure 5 It is a back view of the three-dimensional structure of the present invention; Figure 6 It is a back view of the structure of the present invention; Figure 7 for Figure 6 Enlarged view of point C in the middle; Figure 8 It is a cross-sectional view of the structure of the present invention; Fig. 9 for Figure 8 The enlarged view of point D in the middle; Fig.10 for Figure 8 Enlarged view of point E in the middle; Fig.11 It is a front view of the structure of the present invention; Fig.12 for Fig.11 The enlarged view of F in the middle; Fig.13 for Fig.11 Sectional view at GG in the middle; Fig.14 It is a schematic diagram of the fire door leaf of the present invention.

[0017] In the figure: 1. Door frame sheet metal; 101. First side roller; 102. Limit pin groove; 103. Top pressure sheet metal; 2. Main guide; 201. Secondary guide; 202. First anti-falling guard beam; 203. Second anti-falling guard beam; 204. Third anti-falling guard beam; 205. Lower roller; 206. Second roller; 207. Guard; 3. Fire door leaf; 301. Upper hanging wheel; 302. Lower slide groove; 303. Handle; 304. Lock; 305. Self-locking plug; 306. Door closing armature; 3061. Door closing electromagnet; 4. Door closing self-locking assembly; 401. Self-locking assembly base box; 4011. Control box; 402. Fork hinged arm; 4021. Anti-falling ratchet; 403. Anti-falling roller column; 404. Connecting rod; 405. Sliding rod; 4051, sliding sleeve; 4052, anti-drop spring; 406, sliding pin bracket; 407, sliding pin; 4071, elastic telescopic rod; 4072, anti-drop armature; 408, anti-drop buckle tooth; 409, anti-drop electromagnet; 5, automatic latch mechanism; 501, cam housing; 5011, latch housing; 502, top head; 503, traction block; 504, lever arm; 505, top piece; 506, bolt adapter block; 507, latch; 508, screw; 509, first return spring; 5091, second return spring; 6, hydraulic mechanism; 601, hydraulic cylinder seat; 6011, liquid guide channel; 6012, speed regulating screw; 602, telescopic rod; 6021, piston head; 603, crank arm; 604, door closing return spring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0019] A new type of fireproof, explosion-proof and wind-resistant sliding door, comprising a door frame sheet metal 1, a fireproof door leaf 3, a door closing self-locking component 4, an automatic latch mechanism 5 and a hydraulic mechanism 6, combined with Figure 1 , Figure 8 , Fig. 9 and Fig.10As shown, the door frame sheet metal 1 is embedded in the wall, and a horizontally placed main rail 2 is provided on the front side of the top of the door frame sheet metal 1. A plurality of upper hanging wheels 301 are provided on the top of the fire door leaf 3, and the upper hanging wheels 301 provided on the top of the fire door leaf 3 are slidably connected to the main rail 2 for sliding guidance of the fire door leaf 3 and for smooth opening and closing of the fire door leaf 3. A horizontally placed secondary guide rail 201 is provided at the bottom of the corresponding fire door leaf 3, and lower rollers 205 arranged laterally at equal intervals are provided on the secondary guide rail 201. A lower sliding groove 302 is provided at the bottom of the fire door leaf 3, and the lower rollers 205 provided on the secondary guide rail 201 roll against the side walls of the lower sliding groove 302 provided at the bottom of the fire door leaf 3, thereby limiting the bottom guide of the fire door leaf 3 and improving the lateral pressure resistance of the fire door leaf 3.

[0020] It is worth mentioning that Figure 1 , Figure 8 , Fig. 9 and Fig.10 As shown, the upper and lower cross beams of the door frame sheet metal 1 and the side close to the fire door leaf 3 are provided with first side rollers 101 arranged horizontally at equal intervals, and the first side rollers 101 roll in contact with the upper and lower side surfaces of the fire door leaf 3, the bottom of the fire door leaf 3 and the side away from the door frame sheet metal 1 is provided with a horizontally arranged first anti-falling guard beam 202, the top of the fire door leaf 3 and the side away from the door frame sheet metal 1 is provided with a horizontally arranged second anti-falling guard beam 203, the upper part of the fire door leaf 3 and the side away from the door frame sheet metal 1 is provided with a horizontally arranged third anti-falling guard beam 204, both ends of the first anti-falling guard beam 202, the second anti-falling guard beam 203 and the third anti-falling guard beam 204 are fixed to the wall by bolts, and the first anti-falling guard beam 202, the second anti-falling guard beam 203 and the third anti-falling guard beam 204 are fixed to the wall by bolts. The anti-falling guard beam 204 is provided with second rollers 206 arranged horizontally at equal intervals on one side close to the fire door leaf 3, and the second rollers 206 roll against the side of the fire door leaf 3. The first side rollers 101 provided on the upper and lower cross beams of the first side roller 101 and the first anti-falling guard beam 202, the second anti-falling guard beam 203 and the second rollers 206 provided on the second anti-falling guard beam 203 provide rolling support for both sides of the fire door leaf 3, which not only ensures the smoothness of the fire door leaf 3 when opening, but also greatly improves the lateral pressure resistance of the fire door leaf 3. A lock 304 is provided on one side of the fire door leaf 3, and the lock 304 can be assembled with the existing side fire door leaf lock technology. Handles 303 are provided on both sides of the fire door leaf 3 for hand-held force application during the movement of the fire door leaf 3.

[0021] like Fig.14As shown, the fire door leaf 3 is composed of a door panel frame and door panel sheet metals on both sides of the door panel frame. A honeycomb-shaped supporting keel is provided inside the door panel frame to improve the overall structural strength of the fire door leaf 3, and the honeycomb pores in the supporting keel are filled with fireproof material blocks to improve the fire and high temperature resistance.

[0022] The technical scheme in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: the present invention uses the upper hanging wheel 301 provided on the top of the fire door leaf 3 to be slidably connected to the main rail 2 for sliding guidance of the fire door leaf 3, and the lower roller 205 provided on the auxiliary guide rail 201 rolls against the side wall of the lower slide groove 302 opened at the bottom of the fire door leaf 3, thereby limiting the bottom guide of the fire door leaf 3 and improving the lateral pressure resistance of the fire door leaf 3. At the same time, the first side roller 101 provided on the upper and lower beams of the first side roller 101 and the first anti-falling guard beam 202, the second anti-falling guard beam 203 and the second roller 206 provided on the second anti-falling guard beam 203 provide rolling support for both sides of the fire door leaf 3, thereby ensuring the smoothness of the fire door leaf 3 when opening and greatly improving the lateral pressure resistance of the fire door leaf 3. Example 2

[0023] Combination Figure 1 , Figure 2 , Figure 4 , Fig.11 and Fig.12 As shown, a self-locking plug 305 is provided on one side of the fire door leaf 3. Figure 3 As shown, the outer end of the self-locking plug 305 is a diamond-shaped plug, and a door closing self-locking component 4 is provided at the side bracket of the door frame sheet metal 1 and corresponding to the position of the self-locking plug 305. The door closing self-locking component 4 includes a self-locking component base box 401 integrally formed with the side bracket of the door frame sheet metal 1, and a pair of fork-type hinged arms 402 are hinged inside the self-locking component base box 401. The fork-type hinged arms 402 are connected to a pair of anti-slip rollers 403 at one end close to the self-locking plug 305, and the other end of the fork-type hinged arm 402 is hinged to the sliding sleeve 4051 through a connecting rod 404. The sliding sleeve 4051 slides on the sliding rod 405 in cooperation, and the sliding rod 405 is horizontally fixed in the self-locking component base box 401, and an anti-slip spring 4052 is provided between the end of the sliding rod 405 and the sliding sleeve 4051. When the fire door leaf 3 is closed, the door closing armature 306 is inserted along the middle of the pair of anti-slip rollers 403 until the pair of anti-slip rollers 403 are buckled into the recessed part of the rhombus-shaped part at the outer end of the self-locking plug 305, and under the action of the anti-slip spring 4052 on the sliding sleeve 4051, the sliding sleeve 4051 pulls the fork-type hinge arm 402 through the connecting rod 404, so that the pair of anti-slip rollers 403 maintain a clamping state on the self-locking plug 305, thereby achieving the self-locking effect on the fire door leaf 3.

[0024] It is worth mentioning that Figure 2, Figure 3 and Fig.12 As shown, an anti-dropout ratchet 4021 is integrally formed at the cross hinge point of the fork hinge arm 402, a sliding pin bracket 406 is integrally formed above the inner cavity of the self-locking component base box 401, and a vertically arranged sliding pin 407 is slidably connected to the sliding pin bracket 406. An elastic telescopic rod 4071 is provided at the bottom end of the sliding pin 407, and an anti-dropout buckle tooth 408 is provided at the bottom end of the elastic telescopic rod 4071. After the self-locking plug 305 is fully inserted and a pair of anti-dropout rollers 403 are buckled, the tooth end at the bottom end of the anti-dropout buckle tooth 408 cooperates with the tooth groove of the anti-dropout ratchet 4021, thereby The fork hinge arm 402 is positioned to limit the position, that is, to maintain the clamping state of the pair of anti-slip rollers 403 on the self-locking plug 305, so as to prevent the self-locking plug 305 from being detached from the pair of anti-slip rollers 403. The upper end of the sliding pin 407 is provided with an anti-slip armature 4072, and an anti-slip electromagnet 409 is provided at the top of the inner cavity of the self-locking component base box 401 and at the position corresponding to the anti-slip armature 4072. By controlling the anti-slip electromagnet 409 to be energized and magnetically attracting the anti-slip armature 4072 at the upper end of the sliding pin 407, the anti-slip buckle tooth 408 is detached from the tooth groove on the anti-slip ratchet 4021. At this time, by pulling the fire door leaf 3, the self-locking plug 305 can be disengaged from between the pair of anti-slip rollers 403, so that the fire door leaf 3 can be slid open. A control box 4011 is provided at the bottom of the inner cavity of the self-locking component base box 401, and a control panel is provided on the front side of the self-locking component base box 401. The control panel includes a fingerprint recognition panel and a control button input panel. The control box 4011 receives and recognizes the secret key input by the fingerprint recognition panel or the control button input panel. Only after successful recognition can it issue a command to energize the anti-slip electromagnet 409, so that the fire door leaf 3 can be opened. To open the door leaf 3, a closing electromagnet 3061 is provided on the side bracket of the door frame sheet metal 1 and above the closing self-locking component 4. A closing armature 306 is embedded on the side of the fire door leaf 3 close to the closing electromagnet 3061. When the closing electromagnet 3061 is energized, it can attract the closing armature 306, thereby assisting the fire door leaf 3 to close. After the correct key is entered through the control panel, the closing electromagnet 3061 is powered off for 3-5 seconds, disconnecting the closing electromagnet 3061 from attracting the closing armature 306 on one side of the fire door leaf 3, thereby facilitating the opening of the fire door leaf 3.

[0025] The technical scheme in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: when the fire door leaf 3 is closed, the door closing armature 306 is inserted along the middle of the pair of anti-dropout rollers 403 until the pair of anti-dropout rollers 403 are buckled in the recessed part of the rhombus portion at the outer end of the self-locking plug 305, and under the action of the anti-dropout spring 4052 on the sliding sleeve 4051, the sliding sleeve 4051 pulls the fork-type hinged arm 402 through the connecting rod 404, so that the pair of anti-dropout rollers 403 maintain a clamping state on the self-locking plug 305. After the self-locking plug 305 is fully inserted and the pair of anti-dropout rollers 403 are buckled, the tooth end at the bottom end of the anti-dropout buckle tooth 408 is aligned with the anti-dropout ratchet 4021. The teeth and grooves are matched to limit the position of the fork-type hinged arm 402, that is, the clamping state of the pair of anti-detachment rollers 403 on the self-locking plug 305 is maintained, thereby preventing the self-locking plug 305 from being separated from the pair of anti-detachment rollers 403, thereby achieving the self-locking effect of the fire door leaf 3; the anti-detachment electromagnet 409 is energized by fingerprint recognition or password input, and the anti-detachment armature 4072 at the upper end of the sliding pin 407 is magnetically attracted, so that the anti-detachment buckle tooth 408 is separated from the teeth and grooves on the anti-detachment ratchet 4021. At this time, by pulling the fire door leaf 3, the self-locking plug 305 can be separated from between the pair of anti-detachment rollers 403, so that the fire door leaf 3 can be slid open. Example 3

[0026] Combination Figure 5 , Figure 6 and Figure 7As shown, the fire door leaf 3 is provided with an automatic latch mechanism 5 at both upper and lower positions inside, and the automatic latch mechanism 5 comprises a cam housing 501 arranged horizontally and a latch housing 5011 arranged vertically, the outer end of the cam housing 501 is provided with a head 502 for sliding insertion, the inner end of the head 502 is provided with a traction block 503, a lever arm 504 is hingedly connected to the middle part of the cam housing 501, and one end of the lever arm 504 is connected to the traction block 503 through a pin, and a top piece 505 is provided at the bottom of the inner cavity of the latch housing 5011, and the other end of the lever arm 504 is in conflict with the bottom of the top piece 505. A vertically arranged latch 507 is slidably inserted at the top of the latch housing 5011, a screw 508 is provided at the bottom of the latch 507, a bolt adapter block 506 is connected to the bottom of the screw 508, and a second return spring 5091 is connected between the bottom of the bolt adapter block 506 and the top of the top member 505, a latch 507 is connected between the top of the inner cavity of the latch housing 5011 and the top of the bolt adapter block 506, a limiting pin groove 102 is provided on the upper and lower beams of the door frame sheet metal 1 corresponding to the position of the latch 507, and a top pressure sheet metal 103 is embedded in the side bracket of the door frame sheet metal 1 corresponding to the position of the top head 502. After the fire door leaf 3 is closed, the outer end of the top head 502 contacts the top pressure sheet metal 103 and then retracts into the cam housing 501, and the traction block 503 connected to the inner end of the top head 502 pulls the lever arm 504, so that the other end of the lever arm 504 lifts the bottom end of the top piece 505, thereby pushing the outer end of the latch 507 out and inserting it into the limit pin groove 102 formed in the upper and lower beams of the door frame sheet metal 1, further enhancing the lateral pressure resistance of the fire door leaf 3. When the fire door leaf 3 is opened, the latch 507 retracts into the latch housing 5011 under the action of the first return spring 509 and the second return spring 5091.

[0027] The technical scheme in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: after the fire door leaf 3 is closed, the outer end of the top head 502 of the present invention conflicts with the top pressure sheet metal 103 and then retracts into the cam housing 501, and the traction block 503 connected to the inner end of the top head 502 pulls the lever arm 504, so that the other end of the lever arm 504 lifts the bottom end of the top piece 505, and then the outer end of the latch 507 is pushed out and inserted into the limit pin groove 102 opened by the upper and lower beams of the door frame sheet metal 1, thereby further enhancing the lateral pressure resistance of the fire door leaf 3. When the fire door leaf 3 is opened, the latch 507 retracts into the latch housing 5011 under the action of the first return spring 509 and the second return spring 5091. The reinforced structure does not require manual intervention to strengthen the locking, and automatically completes the connection of the lateral pressure resistance structure of the fire door leaf 3. Example 4

[0028] Combination Figure 1 , Fig.11 and Fig.13As shown, a hydraulic mechanism 6 is provided above the main rail 2, and the hydraulic mechanism 6 includes a horizontally placed hydraulic cylinder seat 601, one end of the hydraulic cylinder seat 601 is connected to a telescopic rod 602, the outer end of the telescopic rod 602 is connected to the top of the fire door leaf 3 through a crank arm 603, and the inner end of the telescopic rod 602 is provided with a piston head 6021, and the piston head 6021 is slidably matched with the inner cavity wall of the hydraulic cylinder seat 601, and a door closing reset spring 604 is provided between one side of the inner cavity of the hydraulic cylinder seat 601 and the piston head 6021. After the fire door leaf 3 is opened, the telescopic rod 602 is pushed under the action of the door closing reset spring 604, and the outer end of the telescopic rod 602 drives the fire door leaf 3 to move through the crank arm 603 until the fire door leaf 3 automatically completes sliding closure.

[0029] The inner cavity of the hydraulic cylinder seat 601 is filled with buffer oil, and the two ends of the inner cavity of the hydraulic cylinder seat 601 are connected by a liquid guide channel 6011. In the process of resetting and closing the fire door leaf 3, the buffer oil on both sides of the piston head 6021 in the inner cavity of the hydraulic cylinder seat 601 is balanced through the liquid guide channel 6011, so that the fire door leaf 3 is closed at a certain speed to avoid the fire door leaf 3 closing too quickly and causing noise or damage. A speed regulating screw 6012 is threaded along the outer side of the hydraulic cylinder seat 601, and the inner end of the speed regulating screw 6012 extends into the liquid guide channel 6011. By rotating the speed regulating screw 6012, the flow through the liquid guide channel 6011 can be adjusted, that is, the speed of the fire door leaf 3 when resetting and closing the door can be adjusted.

[0030] A protective cover 207 is provided on the top of the door frame sheet metal 1. The protective cover 207 is provided to cover the outside of the main rail 2, the second anti-falling guard beam 203 and the hydraulic mechanism 6 to protect the covered structural parts.

[0031] The technical scheme in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: after the fire door leaf 3 in the present invention is opened, the telescopic rod 602 is pushed under the action of the door closing reset spring 604, and the outer end of the telescopic rod 602 drives the fire door leaf 3 to move through the curved arm 603 until the fire door leaf 3 automatically completes sliding and closing. In the process of resetting and closing the fire door leaf 3, the buffer oil on both sides of the piston head 6021 in the inner cavity of the hydraulic cylinder seat 601 is balanced through the liquid guide channel 6011, so that the fire door leaf 3 is closed at a certain speed, thereby avoiding the fire door leaf 3 from closing too quickly and causing noise or damage.

[0032] Of course, the present invention may have many other implementations. Based on this implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present invention.

Claims

1. A new type of fireproof, explosion-proof and wind-pressure-resistant sliding door, comprising a door frame sheet metal (1), a fireproof door leaf (3), a door closing self-locking component (4), an automatic latch mechanism (5) and a hydraulic mechanism (6), characterized in that: A horizontally arranged main rail (2) is provided on the front side of the top of the door frame sheet metal (1), a plurality of upper hanging wheels (301) are provided on the top of the fire door leaf (3), and the upper hanging wheels (301) provided on the top of the fire door leaf (3) are slidably connected to the main rail (2), a horizontally arranged secondary rail (201) is provided at the bottom of the corresponding fire door leaf (3), a lowering groove (302) is provided at the bottom of the fire door leaf (3), and the secondary rail (201) is fitted in the lowering groove (302), a lock (304) is provided on one side of the fire door leaf (3), handles (303) are provided on both sides of the fire door leaf (3), a self-locking plug (305) is provided on one side of the fire door leaf (3), and the door frame sheet metal ( A door closing self-locking component (4) is provided at a position corresponding to the self-locking plug (305) of the side bracket of the door frame sheet metal (1), and the door closing self-locking component (4) includes a self-locking component base box (401) integrally formed with the side bracket of the door frame sheet metal (1), a pair of forked hinged arms (402) are hinged inside the self-locking component base box (401), one end of the forked hinged arm (402) close to the self-locking plug (305) is transferred to a pair of anti-slip rollers (403), the other end of the forked hinged arm (402) is hinged to a sliding sleeve (4051) through a connecting rod (404), the sliding sleeve (4051) slides on the sliding rod (405), the sliding rod (405) is horizontally fixed in the self-locking component base box (401), and the end of the sliding rod (405) is connected to the sliding sleeve (4051). 051), an anti-drop spring (4052) is provided between the fire door leaf (3), an automatic latch mechanism (5) is provided at the upper and lower positions inside the fire door leaf (3), the automatic latch mechanism (5) comprises a cam housing (501) arranged horizontally and a latch housing (5011) arranged vertically, the outer end of the cam housing (501) is provided with a head (502) for sliding insertion, the inner end of the head (502) is provided with a traction block (503), a lever arm (504) is hingedly connected to the middle part of the cam housing (501), and one end of the lever arm (504) is connected to the traction block (503) through a pin, a top piece (505) is provided at the bottom of the inner cavity of the latch housing (5011), and the other end of the lever arm (504) is connected to the traction block (503) through a pin, and a top piece (505) is provided at the bottom of the inner cavity of the latch housing (5011). The top member (505) contacts the bottom of the top member (505), the top of the latch housing (5011) is slidably inserted with a vertically arranged latch (507), the bottom of the latch (507) is provided with a screw rod (508), the bottom of the screw rod (508) is connected with a bolt adapter block (506), and a second return spring (5091) is connected between the bottom of the bolt adapter block (506) and the top of the top member (505), the latch (507) is connected between the top of the inner cavity of the latch housing (5011) and the top of the bolt adapter block (506), a hydraulic mechanism (6) is provided above the main rail (2), the hydraulic mechanism (6) includes a horizontally placed hydraulic cylinder seat (601), one end of the hydraulic cylinder seat (601) is connected with a telescopic rod (602),The outer end of the telescopic rod (602) is connected to the top of the fire door leaf (3) through a curved arm (603), and a piston head (6021) is provided at the inner end of the telescopic rod (602). The piston head (6021) is slidably matched with the inner cavity wall of the hydraulic cylinder seat (601), and a door closing reset spring (604) is provided between one side of the inner cavity of the hydraulic cylinder seat (601) and the piston head (6021).

2. The novel fireproof, explosion-proof and wind-pressure-resistant sliding door according to claim 1 is characterized in that: The auxiliary guide rail (201) is provided with lower rollers (205) arranged horizontally at equal intervals, and the lower rollers (205) arranged on the auxiliary guide rail (201) roll against the side walls of the lower sliding groove (302) opened at the bottom of the fire door leaf (3), and the upper and lower beams of the door frame sheet metal (1) and the side close to the fire door leaf (3) are both provided with first side rollers (101) arranged horizontally at equal intervals, and the first side rollers (101) roll against the upper and lower side surfaces of the fire door leaf (3).

3. The new type of fireproof, explosion-proof and wind-pressure-resistant sliding door according to claim 1 is characterized in that: A first horizontal anti-falling guard beam (202) is provided at the bottom of the fire door leaf (3) and on the side away from the door frame sheet metal (1); a second horizontal anti-falling guard beam (203) is provided at the top of the fire door leaf (3) and on the side away from the door frame sheet metal (1); a third horizontal anti-falling guard beam (204) is provided at the top of the fire door leaf (3) and on the side away from the door frame sheet metal (1); and second rollers (206) are arranged horizontally at equal intervals on the side of the first anti-falling guard beam (202), the second anti-falling guard beam (203) and the third anti-falling guard beam (204) close to the fire door leaf (3), and the second rollers (206) roll against the side of the fire door leaf (3).

4. The novel fireproof, explosion-proof and wind-pressure-resistant sliding door according to claim 1 is characterized in that: An anti-dropout ratchet (4021) is integrally formed at the cross hinge point of the fork-type hinged arm (402), a sliding pin bracket (406) is integrally formed above the inner cavity of the self-locking component base box (401), a vertically arranged sliding pin (407) is slidably connected to the sliding pin bracket (406), an elastic telescopic rod (4071) is provided at the bottom end of the sliding pin (407), an anti-dropout tooth (408) is provided at the bottom end of the elastic telescopic rod (4071), and the tooth end at the bottom end of the anti-dropout tooth (408) is engaged with the tooth groove of the anti-dropout ratchet (4021) and is locked.

5. The novel fireproof, explosion-proof and wind-pressure-resistant sliding door according to claim 4 is characterized in that: An anti-dropout armature (4072) is provided at the upper end of the sliding pin (407), and an anti-dropout electromagnet (409) is provided at the top of the inner cavity of the self-locking component base box (401) and at a position corresponding to the anti-dropout armature (4072).

6. The novel fireproof, explosion-proof and wind-pressure-resistant sliding door according to claim 1 is characterized in that: A control box (4011) is provided at the bottom of the inner cavity of the self-locking component base box (401), and a control panel is provided at the front side of the self-locking component base box (401), the control panel comprising a fingerprint recognition panel and a control key input panel.

7. The new type of fireproof, explosion-proof and wind-pressure-resistant sliding door according to claim 1 is characterized in that: A door closing electromagnet (3061) is provided on the side bracket of the door frame sheet metal (1) and is located above the door closing self-locking assembly (4), and a door closing armature (306) is embedded on one side of the fire door leaf (3) close to the door closing electromagnet (3061).

8. The novel fireproof, explosion-proof and wind-pressure-resistant sliding door according to claim 1 is characterized in that: The upper and lower cross beams of the door frame sheet metal (1) are provided with limit pin grooves (102) at positions corresponding to the latch pins (507), and the side brackets of the door frame sheet metal (1) are provided with top pressing sheet metal (103) at positions corresponding to the top heads (502).

9. The novel fireproof, explosion-proof and wind-pressure-resistant sliding door according to claim 1 is characterized in that: The inner cavity of the hydraulic cylinder seat (601) is filled with buffer oil, and the two ends of the inner cavity of the hydraulic cylinder seat (601) are connected by a liquid guide channel (6011). A speed regulating screw (6012) is threaded along the outer side of the hydraulic cylinder seat (601), and the inner end of the speed regulating screw (6012) extends into the liquid guide channel (6011).

10. The novel fireproof, explosion-proof and wind-pressure-resistant sliding door according to claim 1 is characterized in that: A protective cover (207) is provided on the top of the door frame sheet metal (1), and the protective cover (207) is provided on the outside of the main rail (2), the second anti-falling guard beam (203) and the hydraulic mechanism (6).

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