CN220790909U - Fireproof anti-theft lock and fireproof anti-theft door - Google Patents

Abstract

The application relates to the technical field of fireproof and anti-theft doors, in particular to a fireproof and anti-theft lock and a fireproof and anti-theft door, wherein the fireproof and anti-theft lock comprises a lock body, two shells and two handles; the lock body includes casing, first spring bolt subassembly, second spring bolt subassembly, lock core, shifting block, mounting panel and first rotating block, and the casing includes mounting box and apron, and first spring bolt subassembly includes oblique spring bolt, and second spring bolt subassembly is including the main lock tongue that is used for the back lock, and shifting block and first rotating block all rotate with the mounting box to be connected, when the shifting block rotates, in the shifting block can drive oblique spring bolt removal and indentation mounting box, can drive first rotating block simultaneously and rotate, and first rotating block can drive main lock tongue indentation mounting box in. The application has the effect that the mechanical fireproof anti-theft lock does not need to be opened by a key after being locked in the inner part, and the opening speed of the door is improved.

Description

Fireproof anti-theft lock and fireproof anti-theft door

Technical Field

The application relates to the field of fireproof and anti-theft door technologies, in particular to a fireproof and anti-theft lock and a fireproof and anti-theft door.

Background

Fire doors are doors that meet the requirements of fire stability, integrity and thermal insulation over a period of time, and are therefore commonly used widely as security doors. The normally open fireproof door is kept in an open state at ordinary times, so that personnel can pass conveniently, and the normally open fireproof door can be used for fire evacuation under the condition of fire; normally closed fireproof doors are normally in a closed state, and can effectively block the invasion of strong smoke and fire after a fire disaster occurs.

For public places such as financial business places, shops, industrial factory building equipment rooms, warehouses and the like, fireproof doors are often arranged at emergency exits, namely, under normal conditions, the fireproof doors at the emergency exits are in a closed state, and when a fire disaster occurs, the fireproof doors at the emergency exits are opened to serve as a safe escape passage. However, due to the special nature of these places, anti-theft measures are required, namely, fireproof anti-theft locks are installed on fireproof doors. The types of the fireproof and antitheft locks mainly comprise mechanical fireproof and antitheft locks and intelligent fireproof and antitheft locks, wherein the mechanical fireproof and antitheft locks are widely applied to public places, and the intelligent fireproof and antitheft locks are widely applied to houses.

The working process of the traditional mechanical fireproof antitheft lock recorded in the related technology is as follows: when the back lock is carried out outside the door, a key is required to be inserted into the lock cylinder, and the back lock is screwed; when a back lock is performed in a door, a key is also required to screw the back lock. Once the fireproof anti-theft lock is locked, the anti-theft lock can be opened only by a key, so that after the anti-theft lock is locked from the inside of the door, an outside person cannot easily enter the room, and the anti-theft lock has a good anti-theft function. However, when a fire occurs in a room, the anti-lock state is released by a key, and the fire door can be opened, which brings inconvenience and may delay valuable escape time.

Disclosure of Invention

In order to prevent fire and burglary-resisting lock of machinery no longer needs the key to open after inside back-locking to improve the opening speed of door, this application provides a prevent fire and burglary-resisting lock and prevent fire and burglary-resisting door.

The application provides a fireproof anti-theft lock and fireproof anti-theft door adopts following technical scheme:

a fireproof anti-theft lock comprises a lock body, two shells and two handles; the lock body comprises a shell, a first lock tongue assembly, a second lock tongue assembly, a lock cylinder, a shifting block and a first rotating block; the housing comprises a mounting box and a cover plate; the first spring bolt assembly comprises an inclined spring bolt, a connecting rod, a first compression spring, a fixed plate and a limiting plate, wherein the inclined spring bolt is arranged on the cover plate in a penetrating mode, the connecting rod is fixedly connected with the inclined spring bolt, the fixed plate is arranged on the mounting box, the connecting rod is arranged on the fixed plate in a penetrating mode, two ends of the first compression spring are respectively connected with the inclined spring bolt and the fixed plate, the limiting plate is fixedly connected with the connecting rod, the limiting plate is located on one side, far away from the inclined spring bolt, of the fixed plate, and a gap exists between the limiting plate and the fixed plate; the second lock tongue component comprises a mounting plate, a sliding plate, a movable plate, an extension spring, a second compression spring and a plurality of main lock tongues, wherein the main lock tongues are arranged in parallel and are fixed on the mounting plate, the sliding plate is connected with the mounting plate through the second compression springs, one end of the extension spring is connected with the mounting box, the other end of the extension spring is connected with the movable plate, a clamping groove is formed in the movable plate, a protrusion is formed in the movable plate, the first rotation block is lapped on the protrusion, and a limiting body is formed at one end of the sliding plate far away from the mounting plate; the setting box is characterized in that the setting block is connected with the first rotating block in a rotating way, a first setting block and a second setting block are formed on the setting block, the first setting block is located between the limiting plate and the fixed plate, and after the setting block rotates for a certain angle, the second setting block drives the first rotating block to rotate.

Through adopting above-mentioned technical scheme, during the use, when outdoor, twist the lock core with the key, the main lock tongue stretches out, realizes the back lock, only can the outside open with the key to reach the theftproof effect of traditional fire prevention pickproof lock. When the lock core is screwed by a key in a room, the main lock core stretches out to realize back locking, and the lock core can be opened outside only by using the key, so that the anti-theft effect is achieved; when a fire disaster occurs, the inner handle of the door is pressed down, namely the shifting block is driven to rotate, the first shifting piece shifts the limiting plate to move, and the connecting rod is driven to retract, so that the inclined lock tongue is retracted into the installation box; under the main spring bolt back-locking state, the boss realizes the joint with the draw-in groove, and the second plectrum is stirred first turning block and is rotated, and first turning block drives the fly leaf and vertically removes for boss and draw-in groove release joint relation, under the effect of second compression spring, the main spring bolt is rebounded to in the installation box, and after the handle resets, under extension spring's effect, the fly leaf resets, and the boss realizes the joint again with the draw-in groove, guarantees that the main spring bolt can not rebound. Like this, through pushing down the interior handle of door, alright with oblique spring bolt and main lock tongue retract to the mounting box in simultaneously, open the door in indoor promptly, no longer need use the key to release the back-locking state, improved the speed of opening the door, convenient and fast. Under normal conditions, the anti-theft device can play a role in anti-theft, and when a fire disaster occurs indoors, the anti-theft device can quickly escape, and a large amount of precious escape time can be strived for.

Optionally, a shift lever is formed on the lock core, a shift lug is formed on the sliding plate, and the shift lever can be abutted with the shift lug.

Through adopting above-mentioned technical scheme, insert the key behind the lock core, rotate the lock core, the driving lever is dialled protruding after protruding butt and stir and dial protruding with dialling, and then make the sliding plate remove, stretch out the main lock tongue, realize the back lock.

Optionally, the driving lever the protruding being provided with two, one of them the driving lever is located all the time between two the protruding, when rotating the lock core, the driving lever can with protruding butt just the driving lever can drive the sliding plate removes.

Through adopting above-mentioned technical scheme, main spring bolt can change the length of stretching out the mounting box, can realize the two-stage back lock promptly, improves the theftproof effect greatly.

Optionally, the lock body still includes back lock spring bolt, connecting rod and knob, back lock spring bolt wears to establish on the apron, the connecting rod with back lock spring bolt rigid coupling, the shaping has the clamping rod on the knob, set up jaggedly on the connecting rod.

Through adopting above-mentioned technical scheme, when twisting the back in the room, the back lock spring bolt stretches out, further realizes the back lock, also can't open the door at the external key of door this moment, and theftproof performance further improves.

Optionally, the lock body still includes trace and second turning block, the shaping has the reverse locking plectrum on the knob, the second turning block with the installation box rotates to be connected, the shaping has the third plectrum on the plectrum, the third plectrum can drive the second turning block rotates, the shaping has spacing post on the installation box, offered on the trace and supplied spacing post embedded spout, the one end of trace with the second turning block articulates, the second turning block passes through the trace with the reverse locking plectrum drives the knob rotates.

Through adopting above-mentioned technical scheme, when pushing down the handle in the door, the third plectrum drives the second and rotates the piece, and the second rotates the piece and just drives the knob through trace and anti-locking plectrum and rotate, and then drives the retraction of anti-locking spring bolt. Therefore, under the condition of improving the anti-theft performance, the handle can be pressed down to directly open the door, and the door opening speed is not influenced.

Optionally, the lock body further includes an upper sliding bolt and a lower sliding bolt, two bolt blocks are formed on the mounting plate, the two bolt blocks are respectively located on the upper side and the lower side of the mounting plate, sliding grooves are respectively formed in the upper sliding bolt and the lower sliding bolt, and the two bolt blocks are respectively inserted into the two sliding grooves.

Through adopting above-mentioned technical scheme, upward slide bolt and lower slide bolt can be in the same place with the door body connection, play the reinforcement effect, when the outside carries out violent tear open the lock, upward slide bolt and lower slide bolt can reduce destructiveness effectively.

Optionally, a protective layer is coated on both the shells.

Through adopting above-mentioned technical scheme, the protective layer can play the guard action to fire prevention pickproof lock, increase of service life effectively.

Optionally, a fireproof burglary-resisting door comprises door plates, fireproof fillers and fireproof burglary-resisting locks, wherein a filling cavity is formed between the door plates, and the fireproof fillers are filled in the filling cavity.

Through adopting above-mentioned technical scheme, when the conflagration, the fire behavior is spread in the fire prevention filler can be stopped, play the effect of fire barrier.

Optionally, the fire-proof filling material further comprises cement mortar, wherein the cement mortar is wrapped on the fire-proof filling material.

By adopting the technical scheme, the cement mortar can improve the strength of the door and is not easy to damage.

Optionally, a fire-resistant seal is also included, the cement mortar being disposed between the fire-resistant filler and the fire-resistant seal.

By adopting the technical scheme, the fireproof sealing piece can improve the sealing performance between the door and the door frame, and effectively prevent the fire from spreading.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the fireproof anti-theft lock comprises a shifting block, inclined lock bolts, a lock core and a plurality of main lock bolts, wherein the shifting block is connected with an inner handle of a door, each main lock core can extend out of the door or in the door through the lock core, reverse locking is achieved, and after reverse locking, the lock can be opened only through a key outside the door, so that the aim of theft prevention is achieved. The handle is pressed down in the door, so that the inclined lock tongue and the main lock tongues can be retracted simultaneously, the door can be directly opened, and the fire disaster can be quickly escaped, so that the fireproof anti-theft lock has the traditional anti-theft function and can be quickly opened in a back locking state;

2. the fireproof anti-theft lock in the application further comprises a back-locking lock tongue, a connecting rod, a knob, a linkage rod and a second rotating block, when the back-locking lock tongue is screwed indoors, the back-locking lock tongue stretches out, further back-locking is achieved, at the moment, a door cannot be opened by a key outside the door, the anti-theft performance is further improved, when the handle is pressed down in the door, the third shifting piece drives the second rotating block to rotate, the second rotating block drives the knob to rotate through the linkage rod and the back-locking shifting piece, and then the back-locking lock tongue is driven to retract. Thus, under the condition of improving the anti-theft performance, the door can be directly opened indoors by pressing down the handle;

3. the application also discloses a fire prevention burglary-resisting door, fire prevention burglary-resisting door include door plant, cement mortar, fire prevention sealing member and fire prevention filler for fire prevention burglary-resisting door in this application still has stronger fire prevention function when having stronger theftproof function concurrently.

Drawings

FIG. 1 is a schematic structural view of a fire and burglary protection door of the present application;

FIG. 2 is a front view of the fireproof anti-theft lock of the present application with the mounting box partially hidden;

FIG. 3 is a schematic view of the fireproof anti-theft lock of the present application;

FIG. 4 is a front view of the first latch bolt assembly of the present application;

FIG. 5 is a front view of the second latch bolt assembly of the present application;

FIG. 6 is an exploded view of the second latch bolt assembly of the present application;

FIG. 7 is a front view of a third latch bolt assembly of the present application;

fig. 8 is a partial cross-sectional view of a fire and burglary protection door of the present application.

Reference numerals illustrate: 1. a housing; 2. a handle; 3. a lock body; 31. a housing; 311. a mounting box; 312. a cover plate; 32. a first latch bolt assembly; 321. oblique spring bolt; 322. a connecting rod; 323. a first compression spring; 324. a fixing plate; 325. a limiting plate; 33. a second latch bolt assembly; 331. a main bolt; 332. a mounting plate; 333. a sliding plate; 334. a movable plate; 335. a tension spring; 336. a second compression spring; 337. a clamping groove; 338. a protrusion; 339. a limiting body; 34. a shifting block; 35. a lock core; 36. a first rotating block; 37. a third latch bolt assembly; 371. locking the lock tongue; 372. a connecting rod; 373. a knob; 374. a clamping rod; 375. a notch; 376. a reverse locking pulling piece; 38. a linkage rod; 39. a second rotating block; 3010. an upper slide bolt; 3011. a sliding bolt; 4. fireproof and anti-theft door; 41. a fire-resistant filler; 42. a door panel; 43. cement mortar; 44. a fire seal; 5. a first plectrum; 6. a second pulling piece; 7. a deflector rod; 8. poking the convex; 9. a third shifting piece; 10. a limit column; 11. a chute; 12. a bolt block; 13. a sliding groove.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-8.

The embodiment of the application discloses fireproof anti-theft lock, refer to fig. 1 and 2, fireproof anti-theft lock includes lock body 3, two shells 1 and two handles 2, and wherein lock body 3 includes casing 31, first spring bolt subassembly 32, second spring bolt subassembly 33, shifting block 34 and lock core 35, and shifting block 34 rotates with mounting box 311 to be connected, and first spring bolt subassembly 32 includes oblique spring bolt 321, and second spring bolt subassembly 33 includes a plurality of main spring bolts 331, a plurality of main spring bolt 331 parallel arrangement. The lock cylinder 35 can drive the main lock tongue 331 to extend or retract, and when the dial block 34 is rotated, the dial block 34 can drive the main lock tongue 331 and the inclined lock tongue 321 to retract at the same time.

When the anti-theft lock is used, the lock core 35 can be rotated by a key in the door and outside the door, the main lock core 35 is extended out, and the anti-theft purpose is achieved. The handle 2 in the door is pressed down to drive the shifting block 34 to rotate, the shifting block 34 can retract the main lock tongue 331 and the inclined lock tongue 321 quickly, the door can be opened quickly at the moment, and the key is not needed to release the back locking state indoors. Therefore, the fireproof anti-theft lock has the traditional anti-theft function and can be opened quickly in the back locking state.

Of course, the installation of the lock body 3, the two shells 1 and the two handles 2 is the same as that of a conventional fireproof anti-theft lock, and belongs to operations known to those skilled in the art, and in this embodiment, a specific description will not be given. In this embodiment, the door outer handle 2 may be directly fixed to the housing 1.

Referring to fig. 2 and 3, in particular, the housing 31 includes a mounting box 311 and a cover plate 312, and a plate on one side of the mounting box 311 may be designed to be detachably coupled to facilitate assembly of the respective parts. One side of the mounting box 311 is in an open state, the opening is in the length direction of the mounting box 311, the cover plate 312 is used for blocking the opening on the mounting box 311, and the length of the cover plate 312 is larger than that of the mounting box 311, so that the cover plate 312 is fixed on the door.

Referring to fig. 2 and 4, the first latch assembly 32 further includes a connecting rod 322, a first compression spring 323, a fixing plate 324 and a limiting plate 325, wherein the inclined latch 321 is penetrated on the cover plate 312, the connecting rod 322 is fixedly connected with the inclined latch 321, the fixing plate 324 is fixedly installed on the installation box 311, the connecting rod 322 is penetrated on the fixing plate 324 and is slidably connected with the fixing plate 324, two ends of the first compression spring 323 are respectively connected with the inclined latch 321 and the fixing plate 324, the limiting plate 325 is fixedly connected with the connecting rod 322, the limiting plate 325 is located on one side, away from the inclined latch 321, of the fixing plate 324, and a space exists between the limiting plate 325 and the fixing plate 324. The first pulling piece 5 is formed on the pulling block 34, and the first pulling piece 5 is located between the limiting plate 325 and the fixing plate 324.

Thus, when the handle 2 is pressed down, that is, the shifting block 34 rotates, the first shifting piece 5 can be driven to rotate, and then the limiting plate 325 is pushed to move, so that the connecting rod 322 slides, the inclined lock tongue 321 can retract into the mounting box 311, and the door can be opened. In the moving process of the connecting rod 322, the first compression spring 323 is extruded, and after the handle 2 is reset, under the action of the first compression spring 323, the inclined lock tongue 321 can automatically pop up, so that normal closing and opening states are realized.

Referring to fig. 5 and 6, the second latch assembly 33 includes a mounting plate 332, a sliding plate 333, a movable plate 334, an extension spring 335, a second compression spring 336 and a plurality of main latches 331, where the plurality of main latches 331 are arranged in parallel and are all fixed on the mounting plate 332, each main latch 331 is arranged on the cover plate 312 in a penetrating manner, the sliding plate 333 is connected with the mounting box 311 through the plurality of second compression springs 336, one end of the extension spring 335 is connected with the mounting box 311, the other end is connected with the movable plate 334, a clamping slot 337 is formed on the movable plate 334, a protrusion 338 is formed on the movable plate 334, a limit body 339 is formed on one end of the sliding plate 333 away from the mounting plate 332, and the limit body 339 can be clamped with the clamping slot 337. The lock body 3 further comprises a first rotating block 36, the first rotating block 36 is lapped on the protrusion 338, the second shifting piece 6 is formed on the shifting block 34, and after the shifting block 34 rotates for a certain angle, the second shifting piece 6 drives the first rotating block 36 to rotate.

Normally, the main lock tongue 331 can be inserted into the lock cylinder 35 by a key, and the main lock tongue 331 can be extended or retracted. When the handle 2 is pressed down to drive the shifting block 34 to rotate, the second shifting sheet 6 drives the first rotating block 36 to rotate, so that the movable plate 334 moves, after the movable plate 334 moves to a certain extent, the limiting body 339 is separated from the clamping groove 337, the fixed relation is released, and under the rebound action of the second compression spring 336, the sliding plate 333 drives the mounting plate 332 to move, so that the main lock tongue 331 is retracted. After the handle 2 is reset, under the action of the compression spring, the movable plate 334 is reset, and the clamping groove 337 and the limiting body 339 are clamped and fixed, so that the main lock tongue 331 does not move any more.

Referring to fig. 5 and 6, further, a shift lever 7 is formed on the lock cylinder 35, a shift protrusion 8 is formed on the slide plate 333, and the shift lever 7 can abut against the shift protrusion 8. Thus, by rotating the lock cylinder 35, the shift lever 7 is driven to rotate, and the shift lever 7 further drives the shift lug 8 to move, so that the main lock tongue 331 can extend out to realize back locking.

In this embodiment, two shift levers 7 and shift protrusions 8 are provided, one shift lever 7 is always located between two shift protrusions 8, and when the lock cylinder 35 is rotated, the shift lever 7 can be abutted with the shift protrusions 8 and the shift lever 7 can drive the sliding plate 333 to move. Thus, when the key is inserted to rotate the lock cylinder 35, the first deflector rod 7 dials the deflector protrusion 8 adjacent to the main lock tongue 331, so that the sliding plate 333 can move a distance, i.e. the main lock tongue 331 extends a distance; when the lock cylinder 35 is continuously rotated, the second deflector rod 7 is abutted against the deflector protrusion 8 far away from the main lock tongue 331, and the sliding plate 333 is continuously pushed to move until reaching the limit, i.e. the main lock tongue 331 is maximally extended. Accordingly, the main lock tongue 331 can be retracted step by step when the lock cylinder 35 is reversed.

Thus, the main lock tongue 331 can change the length of the extending mounting box 311, i.e. two-stage back locking can be realized, and the anti-theft effect is greatly improved. In this embodiment, three locking grooves 337 are provided, and the limiting body 339 moves into different locking grooves 337 for fixing according to the difference of the extending lengths of the main locking tongue 331.

Referring to fig. 2 and 7, the lock body 3 further includes a third lock tongue assembly 37, where the third lock tongue assembly 37 includes a locking lock tongue 371, a connecting rod 372 and a knob 373, the locking lock tongue 371 is disposed on the cover plate 312 in a penetrating manner, the connecting rod 372 is fixedly connected with the locking lock tongue 371, a clamping rod 374 is formed on the knob 373, and a notch 375 is formed on the connecting rod 372. When the knob 373 is screwed on the shell 1 arranged on the inner side of the door, the locking bolt 371 can be extended out through the cooperation of the clamping rod 374 and the notch 375, so that further locking is realized. When the lock tongue 371 is extended, the lock state cannot be released from the outside of the door by the key.

Referring to fig. 2 and 7, the lock body 3 further includes a linkage rod 38 and a second rotating block 39, a locking pulling piece 376 is formed on the knob 373, the second rotating block 39 is rotationally connected with the mounting box 311, a third pulling piece 9 is formed on the pulling block 34, the third pulling piece 9 can drive the second rotating block 39 to rotate, a limit post 10 is formed on the mounting box 311, a chute 11 for embedding the limit post 10 is formed on the linkage rod 38, one end of the linkage rod 38 is hinged with the second rotating block 39, and the second rotating block 39 drives the knob 373 to rotate through the linkage rod 38 and the locking pulling piece 376.

Like this, pushing down handle 2 drives the shifting block 34 and rotates, and third shifting block 9 stirs second turning block 39 and rotates, through spacing post 10 and spout 11's effect, and interlock lever 38 can only be to the direction removal of keeping away from anti-lock tongue 371, and interlock lever 38 stirs anti-lock shifting block 376, and then drives and revolves and twist the reversal for anti-lock tongue 371 is retracted, releases the anti-lock state promptly.

When the anti-theft lock is in actual use, after the door is closed, the lock cylinder 35 is screwed by a key, the main lock tongue 331 realizes anti-locking, the knob 373 is screwed again, and the anti-locking lock tongue 371 realizes further anti-locking, so that the anti-theft effect is achieved. When unexpected conditions such as fire occur, the handle 2 in the door is pressed down, the inclined lock tongue 321, the main lock tongue 331 and the back lock tongue 371 can retract simultaneously, the door can be directly opened, and a key is not needed any more or the knob 373 is screwed to release the back lock state, so that the door is convenient and quick.

Specifically, referring to fig. 2 and 3, the lock body 3 further includes an upper sliding bolt 3010 and a lower sliding bolt 3011, the upper sliding bolt 3010 and the lower sliding bolt 3011 are respectively disposed on the mounting box 311 in a penetrating manner, a bolt block 12 is respectively disposed on the upper and lower sides of the mounting plate 332, sliding grooves 13 are respectively disposed on the upper sliding bolt 3010 and the lower sliding bolt 3011, the two bolt blocks 12 are respectively inserted into the two sliding grooves 13, and when the main bolt 331 moves, the upper sliding bolt 3010 and the lower sliding bolt 3011 can move correspondingly. The upper and lower slide bolts 3010 and 3011 can be connected to the door body to provide reinforcement, and the upper and lower slide bolts 3010 and 3011 can effectively reduce destructiveness when the outside is subjected to violent unlocking. The sliding bolt is a product well known to those skilled in the art, and in this embodiment, the structure of the sliding bolt is not described in detail.

Both shells 1 are coated with a protective layer (not shown in the figure), and the protective layer can protect the fireproof anti-theft lock, so that the service life of the fireproof anti-theft lock is effectively prolonged. The specific material of the protective layer is not limited, and the type of the protective layer can be spray coating, electroplating, and the like. It is understood that the fireproof anti-theft lock in the application is made of fireproof and high-temperature resistant materials, and is preferably made of steel materials.

Of course, it will be appreciated that the centers of the dial 34, lock cylinder 35 and knob 373 are preferably disposed in a line for ease of installation and aesthetics.

The implementation principle of the fireproof anti-theft lock provided by the embodiment of the application is as follows: when the anti-theft lock is used outdoors, the main lock tongue 331 is extended out by screwing the lock core 35 through the key, so that the anti-theft lock is locked, and the working condition of the anti-theft lock is the same as that of the traditional fireproof anti-theft lock; when the anti-theft lock is used indoors, the main lock tongue 331 is firstly extended through the key, then the anti-lock tongue 371 is extended through screwing the knob 373, and the key outside the door cannot be opened at the moment, so that the anti-theft function is achieved. The handle 2 in the door is pressed down, the shifting block 34 rotates, under the action of the first shifting piece 5, the second shifting piece 6 and the third shifting piece 9, the inclined lock tongue 321, the main lock tongue 331 and the back lock tongue 371 can retract simultaneously, namely, the door in the back lock state can be directly opened by pressing the handle 2 indoors, when a fire disaster occurs, the back lock state is released without using a key and screwing the knob 373, the speed of opening the door is improved, and the door is convenient and quick. Under normal conditions, the anti-theft device can play a role in anti-theft, and when a fire disaster occurs indoors, the anti-theft device can quickly escape, and a large amount of precious escape time can be obtained.

The embodiment of the application also discloses a fireproof and anti-theft door, which adopts the fireproof and anti-theft lock in the application. Referring to fig. 1 and 8, the fire-resistant and burglary-resisting door 4 includes door panels 42 and a fire-resistant filler 41, a filling chamber is formed between the door panels 42, and the fire-resistant filler 41 is filled in the filling chamber. Thus, the door inner fire-proof filler 41 serves as an insulation layer in the event of a fire, thereby blocking the spread of the fire.

Note that, the fireproof filler 41 may be a perlite fireproof core board, a rock wool fireproof core board, or the like, and in this embodiment, the type of the fireproof filler 41 is not particularly limited. Of course, it will be appreciated that door panel 42 requires the use of a fire resistant material, such as: steel, aluminum, etc., to achieve the purposes of fire resistance and high temperature resistance.

Referring to fig. 1 and 8, the fire-preventing burglary-resisting door 4 further comprises cement mortar 43, and the cement mortar 43 is integrally wrapped on the fire-preventing filler 41. Thus, a firm supporting foundation is formed between the door plate 42 and the fireproof filler 41, the purpose of further blocking the fire source can be achieved, and the external impact damage can be achieved, so that the anti-theft purpose is achieved.

Referring to fig. 1 and 8, the fire-resistant burglary-resisting door 4 further comprises a fire-resistant seal 44, and cement mortar 43 is disposed between the fire-resistant filler 41 and the fire-resistant seal 44. The fire seal 44 can improve the seal between the door and the door frame, effectively further blocking the spread of fire.

Of course, in the present embodiment, the type of the fireproof sealing member 44 is not particularly limited, and only needs to have the fireproof and sealing functions.

The implementation principle of the fireproof burglary-resisting door of the embodiment of the application is as follows: when the anti-theft door is used, the anti-theft lock is arranged on the anti-theft door 4, the anti-theft door cannot be opened outside the door after the anti-theft door is locked, and meanwhile, the anti-theft lock and the door are designed to be anti-damage, so that the anti-theft door 4 has a strong anti-theft function; meanwhile, the fireproof burglary-resisting door 4 is also designed to prevent fire, so that fire spread can be effectively prevented. When a fire disaster occurs, indoor personnel can quickly escape through the fireproof anti-theft door 4 in the application, and after the personnel complete escape, the door is closed to form a safety barrier so as to prevent the fire disaster from spreading. Therefore, the fireproof and antitheft door 4 in the present application has fireproof and antitheft performances.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. A fireproof antitheft lock, characterized in that: comprises a lock body (3), two shells (1) and two handles (2); the lock body (3) comprises a shell (31), a first lock tongue assembly (32), a second lock tongue assembly (33), a lock cylinder (35), a shifting block (34) and a first rotating block (36); the housing (31) comprises a mounting box (311) and a cover plate (312); the first lock tongue assembly (32) comprises an inclined lock tongue (321), a connecting rod (322), a first compression spring (323), a fixed plate (324) and a limiting plate (325), wherein the inclined lock tongue (321) is penetrated through the cover plate (312), the connecting rod (322) is fixedly connected with the inclined lock tongue (321), the fixed plate (324) is arranged on the mounting box (311), the connecting rod (322) is penetrated through the fixed plate (324), two ends of the first compression spring (323) are respectively connected with the inclined lock tongue (321) and the fixed plate (324), the limiting plate (325) is fixedly connected with the connecting rod (322), the limiting plate (325) is positioned on one side, far away from the inclined lock tongue (321), of the fixed plate (324), and a space exists between the limiting plate (325) and the fixed plate (324). The second lock tongue assembly (33) comprises a mounting plate (332), a sliding plate (333), a movable plate (334), an extension spring (335), a second compression spring (336) and a plurality of main lock tongues (331), wherein the main lock tongues (331) are arranged in parallel and are fixed on the mounting plate (332), the sliding plate (333) is connected with the mounting box (311) through the second compression springs (336), one end of the extension spring (335) is connected with the mounting box (311), the other end of the extension spring (335) is connected with the movable plate (334), a clamping groove (337) is formed in the movable plate (334), a protrusion (338) is formed in the movable plate (334), the first rotating block (36) is lapped on the protrusion (338), and a limiting body (339) is formed at one end of the sliding plate (333) away from the mounting plate (332). The setting block (34) and the first rotating block (36) are both in rotating connection with the mounting box (311), a first setting block (5) and a second setting block (6) are formed on the setting block (34), the first setting block (5) is located between the limiting plate (325) and the fixing plate (324), and after the setting block (34) rotates for a certain angle, the second setting block (6) drives the first rotating block (36) to rotate.

2. The fire and theft protection lock of claim 1, wherein: a deflector rod (7) is formed on the lock cylinder (35), a deflector protrusion (8) is formed on the sliding plate (333), and the deflector rod (7) can be abutted with the deflector protrusion (8).

3. The fire and theft protection lock of claim 2, wherein: the shifting levers (7) and the shifting protrusions (8) are arranged, one shifting lever (7) is always located between the two shifting protrusions (8), and when the lock cylinder (35) is rotated, the shifting levers (7) can be abutted with the shifting protrusions (8) and the shifting levers (7) can drive the sliding plates (333) to move.

4. The fire and theft protection lock of claim 1, wherein: the lock body (3) further comprises a back locking bolt (371), a connecting rod (372) and a knob (373), wherein the back locking bolt (371) is arranged on the cover plate (312) in a penetrating mode, the connecting rod (372) is fixedly connected with the back locking bolt (371), a clamping connection rod (374) is formed on the knob (373), and a notch (375) is formed in the connecting rod (372).

5. The fire and theft protection lock of claim 4, wherein: the lock body (3) further comprises a linkage rod (38) and a second rotating block (39), an anti-locking shifting block (376) is formed on the knob (373), the second rotating block (39) is rotationally connected with the mounting box (311), a third shifting block (9) is formed on the shifting block (34), the third shifting block (9) can drive the second rotating block (39) to rotate, a limit column (10) is formed on the mounting box (311), a chute (11) for the limit column (10) to be embedded in is formed in the linkage rod (38), one end of the linkage rod (38) is hinged to the second rotating block (39), and the second rotating block (39) drives the knob (373) to rotate through the linkage rod (38) and the anti-locking shifting block (376).

6. The fire and theft protection lock of claim 1, wherein: the lock body (3) further comprises an upper sliding bolt (3010) and a lower sliding bolt (3011), two bolt blocks (12) are formed on the mounting plate (332), the two bolt blocks (12) are respectively located on the upper side and the lower side of the mounting plate (332), sliding grooves (13) are respectively formed in the upper sliding bolt (3010) and the lower sliding bolt (3011), and the two bolt blocks (12) are respectively inserted into the two sliding grooves (13).

7. The fire and theft protection lock of claim 1, wherein: both shells (1) are coated with a protective layer.

8. A fire prevention burglary-resisting door, characterized in that: comprising a door plate (42), a fireproof filler (41) and the fireproof anti-theft lock according to any one of claims 1 to 7, wherein a filling cavity is formed between the door plates (42), and the fireproof filler (41) is filled in the filling cavity.

9. The fire and theft protection door of claim 8, wherein: and the fireproof filling material further comprises cement mortar (43), and the cement mortar (43) is wrapped on the fireproof filling material (41).

10. The fire and theft protection door of claim 9, wherein: also included is a fire-resistant seal (44), the cement mortar (43) being disposed between the fire-resistant filler (41) and the fire-resistant seal (44).