CN115874874B - Fire door lock - Google Patents
Fire door lockInfo
- Publication number
- CN115874874B CN115874874B CN202310022393.5A CN202310022393A CN115874874B CN 115874874 B CN115874874 B CN 115874874B CN 202310022393 A CN202310022393 A CN 202310022393A CN 115874874 B CN115874874 B CN 115874874B
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- lock
- box
- reset
- lock box
- push rod
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Abstract
本发明公开了一种防火门天地锁，主锁体包括锁盒一、斜舌机构和驱动机构，驱动机构对应门外的端面连接有锁芯部，对应门内的端面连接有把手部一；上推杆锁体包括锁盒二、上插销部、复位部以及扣盒一，复位部上连接有上推杆，上推杆延伸至控制锁体内固定，下推杆锁体包括锁盒三、下插销部、推送部、以及扣盒二，推送部用于将收缩于锁盒三内的下插销部，推送至锁盒三外，且与扣盒二锁定，推送部上连接有下推杆，下推杆延伸至伸至控制锁体内固定。本发明具有快速锁定和快速解锁的功能，且在特殊场所实现门外需要通过钥匙解锁，门内通过把手解锁的功能，提升安全性能的同时，又能提升场所的隐私性。
The present invention discloses a fire door top and bottom lock, wherein the main lock body comprises a lock box 1, a latch bolt mechanism and a driving mechanism, wherein the driving mechanism is connected to a lock core portion at the end face corresponding to the outside of the door and is connected to a handle portion 1 at the end face corresponding to the inside of the door; the upper push rod lock body comprises a lock box 2, an upper latch portion, a reset portion and a buckle box 1, wherein the reset portion is connected to an upper push rod, which extends into the control lock body and is fixed; the lower push rod lock body comprises a lock box 3, a lower latch portion, a push portion and a buckle box 2, wherein the push portion is used to push the lower latch portion retracted in the lock box 3 to the outside of the lock box 3 and lock it with the buckle box 2, wherein the push portion is connected to a lower push rod, which extends into the control lock body and is fixed. The present invention has the functions of fast locking and fast unlocking, and can realize the functions of unlocking the door by a key from outside and unlocking the door by a handle from inside in special places, thereby improving security performance while also improving the privacy of the place.
Description
Technical Field
The invention relates to the technical field of locks, in particular to a fireproof door lock.
Background
The space lock is used for being provided with the fireproof door of two doors, and comprises a main lock body and an auxiliary lock body, wherein the auxiliary lock body comprises an upper push rod lock and a lower push rod lock, the main lock body locks two door leaves after being closed, the upper door frame is locked by the upper push rod lock, and the lower push rod lock locks the lower bottom plate, so that the door lock is stable. At present, when the existing world lock is used, the problem that the inside or the outside of the main lock body door can be quickly unlocked through the operation handle, and the privacy of special places cannot be guaranteed, such as classrooms, hospitals and the like, exists. After the upper push rod lock and the lower push rod lock are unlocked, the door leaf cannot be automatically reset and locked, when a dangerous situation occurs, the door leaf cannot be quickly locked, the indoor temperature is increased when the dangerous situation occurs, the space air pressure is increased, the door leaf is easily flushed open by indoor hot air flow due to poor locking effect of the lockset, and the greater safety problem is caused. The technical problems above lead to the great reduction of the safety performance of the lockset, and the safety requirements of special occasions or special conditions cannot be met, so that the quality of the product of the world lock is low. Therefore, the fireproof door lock has high safety performance and high privacy, and can be quickly locked.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the fireproof door lock which has high safety performance and strong privacy and can be quickly unlocked and unlocked.
The fireproof door lock comprises a main lock body and an auxiliary lock body, wherein the auxiliary lock body comprises a control lock body, an upper push rod lock body and a lower push rod lock body which are positioned at two ends of the control lock body, the main lock body comprises a first lock box, an inclined tongue mechanism and a driving mechanism, the inclined tongue mechanism is positioned in the first lock box, the driving mechanism is used for driving the inclined tongue mechanism to shrink in the first lock box, the end face of the driving mechanism, which corresponds to the outer side of a door, is connected with a lock cylinder part, and the end face of the driving mechanism, which corresponds to the inner side of the door, is connected with a handle part I;
The upper push rod lock body comprises a lock box II, an upper bolt part, a reset part and a buckle box I, wherein the upper bolt part is positioned in the lock box II, the buckle box I is positioned outside the lock box II, the reset part is used for driving the upper bolt part contracted in the lock box II to move outside the lock box I and lock with the buckle box I, the reset part is connected with an upper push rod, the upper push rod extends into the control lock body to be fixed, the lower push rod lock body comprises a lock box III, a lower bolt part positioned in the lock box III, a push part and a buckle box II positioned outside the lock box III, the push part is used for pushing the lower bolt part contracted in the lock box III to the outside of the lock box III and locks with the buckle box II, the push part is connected with a lower push rod, the lower push rod extends to the control lock body to be fixed, the push part comprises a push plate which is positioned on the inner wall of the lock box III and is in sliding fit, one end of the push plate is connected with the lower push rod, and the other end of the push plate is connected with the lower bolt part;
The control lock body comprises a lock box four, be equipped with interlock in the lock box four, interlock is including rotating the base, the one end that rotates the base is located lock box four, and the other end extends to lock box four outsides, and it has a handle portion second to be located the cooperation on the four outsides of lock box's the rotation base, and the rotation base cover that is located lock box four is equipped with rotation portion, rotation portion includes the rotor plate to and be located the pulling-on piece at rotor plate both ends, and the one end of two pulling-on pieces is located lock box four, and is equipped with and is fan-shaped fretwork district, have V-arrangement spout in the fretwork district, the tip of rotor plate is equipped with and is located V-arrangement spout sliding fit's slider second, and the other end of two pulling-on pieces extends to lock box four outsides, is connected with push rod, push rod down respectively.
The invention is further characterized in that a reversing mechanism is further arranged in the first lock box, the reversing mechanism comprises reversing pieces which are arranged in the first lock box and are in sliding fit up and down, and a reset piece which drives the reversing pieces to move downwards, the inclined tongue mechanism comprises a connecting rod, a fixing piece sleeved on the connecting rod, inclined tongue blocks and a sliding seat which are arranged at two ends of the connecting rod, wherein the fixing piece is fixed on the inner wall of the first lock box, the sliding seat is arranged on the inner wall of the first lock box and is in sliding fit left and right, the driving mechanism comprises a shifting wheel, the shifting wheel is connected with the sliding seat, and the reversing pieces are inserted between the sliding seat and the fixing piece under the driving force of the reset piece.
The upper bolt part comprises a bolt head, a pull plate is arranged between the upper push rod and the bolt head, a torsion spring I is arranged on the pull plate, the torsion spring I drives the pull plate to move towards one direction of the buckle box, the bolt head is enabled to move out of the lock box and is inserted and matched in the buckle box I, the reset part comprises a reset roller and a reset pulling piece, the reset roller is arranged in the lock box II in a sliding mode, a torsion spring II is arranged at the tail part of the reset roller, the end part of the reset roller is driven to move out of the lock box by the torsion spring II and is clamped and matched in the buckle box I, the end part of the reset pulling piece is sleeved on the rotating shaft and in running fit, the end part of the reset pulling piece is in abutting joint with the tail part of the reset roller, the tail part of the reset pulling piece swings up and down, and a torsion spring III is also arranged on the reset pulling piece, and one end of the reset pulling piece far away from the rotating shaft is driven by the torsion spring III to be in an upward lifting state and is in abutting with the pull plate.
The invention is further characterized in that the pull plate is provided with a propping block, one end face of the propping block is propped against the reset pulling piece, the other end face of the propping block is propped against the end part of the torsion spring II, the reset pulling piece is provided with a clamping block, the torsion spring III is sleeved on the rotating shaft, the end part of the torsion spring III is buckled on the clamping block, the reset pulling piece is also provided with a propping inclined plane, and the tail part of the reset roller is propped against the propping inclined plane.
The reset roller comprises a sliding frame and balls, wherein a first sliding block is arranged on the sliding frame, a sliding groove for the first sliding block to be matched in a sliding way is formed in the bottom wall of the second lock box, and a slot for inserting a bolt head and a bayonet for clamping the balls are formed in the first lock box.
The invention further provides that the upper push rod and the lower push rod both comprise an assembly end and a connecting shaft end, an adjusting threaded rod is arranged between the assembly end and the connecting shaft end, and two ends of the adjusting threaded rod are respectively inserted into the assembly end and the connecting shaft end for internal thread matching and fixing.
The invention is further arranged that the pull tab comprises a plate block and a connecting block extending to the outside of the lock box, wherein the connecting block is provided with an assembly groove, and two side walls of the assembly groove are provided with insertion holes for inserting screws.
The invention is further characterized in that a sleeve opening is arranged on the rotating piece, two convex blocks are arranged on the side wall of the sleeve opening, and clamping grooves matched with the convex blocks are arranged on two sides of the rotating base.
By adopting the technical scheme, the invention has the following advantages:
1. The main lock body is realized and controlled by the inclined tongue mechanism, the door can be automatically locked after the door is closed, the locking efficiency of the main lock body is improved, when the door is unlocked, the inside of the door is unlocked through the handle, and the outside of the door is required to be unlocked through the matching of the lock core and the key, so that the privacy of special occasions is improved;
2. The upper push rod lock body and the lower push rod lock body realize automatic resetting and locking, so that the locking efficiency is improved;
3. the structure improvement of the control lock body can be used for quickly retracting the upper push rod and the lower push rod, so that the quick unlocking of the upper push rod lock body and the lower push rod lock body is realized.
4. The integral lockset has high structural strength when being locked, not only locks two doors, but also locks the upper end and the lower end of one door leaf, thereby preventing the doors from being broken by other punching when dangerous situations occur and causing larger potential safety hazards.
Drawings
FIG. 1 is a schematic elevational view of the present invention;
FIG. 2 is a schematic rear view of the present invention;
FIG. 3 is a schematic diagram of a partial structure of a main lock body;
FIG. 4 is a schematic diagram of a partial structure of a main lock body;
FIG. 5 is a first state diagram of the structure of the push rod lock;
FIG. 6 is a second state diagram of the push rod lock structure;
FIG. 7 is an exploded view of the push-up lever lock construction;
FIG. 8 is a schematic diagram of the configuration of the reset roller;
FIG. 9 is an enlarged view of FIG. 2 at a;
FIG. 10 is a first diagram of a control lock structure;
FIG. 11 is a second state diagram of the control lock structure;
FIG. 12 is a schematic view of a partial structure of a control lock body;
FIG. 13 is a schematic view of a pull tab construction;
fig. 14 is an exploded view of the rotor plate and the rotor base.
The lock comprises a main lock body, a first lock box, a second lock box, a first 11 inclined bolt mechanism, a second 110 connecting rod, a first 111 connecting rod, a second 112 connecting rod, an inclined bolt block, a second 113 connecting rod, a sliding seat, a second 12 connecting rod, a driving mechanism, a second 121 connecting rod, a first handle part, a second 122 connecting rod, a thumb wheel, a second 123 connecting rod, a reversing mechanism, a second 1230 connecting rod, a third 1231 connecting rod, a reset piece, a fourth 124 connecting rod and a fourth lock core part;
2. An auxiliary lock body;
3. the lock comprises a control lock body, a lock box IV, a rotary base, 310, a clamping groove, 32, a handle II, 33, a rotary part, 330, a rotary piece, 331, a pull piece, 332, a hollow area, 333, a V-shaped chute, 334, a plate, 335, a connecting block, 336, an assembly groove, 337, a jack, 338, a socket, 339, a lug, 340 and a slider II;
4. The upper push rod lock body, 40, a second lock box, 400, a sliding chute, 41, a first buckle box, 410, a slot, 411, a bayonet, 42, an upper bolt part, 420, a bolt head, 421, a pull plate, 422, a first torsion spring, 423, a supporting block, 43, a resetting part, 430, a resetting roller, 431, a resetting plectrum, 432, a second torsion spring, 433, a third torsion spring, 434, a clamping block, 435, a supporting inclined surface, 436, a rotating shaft, 437, a sliding frame, 438, a ball, 439, a first sliding block, 44, an upper push rod, 440, an assembling end, 441, a connecting shaft end, 442 and an adjusting threaded rod;
5. 50 parts of lock box III, 51 parts of lower bolt, 52 parts of pushing part, 520 parts of lower push rod, 521 parts of push plate, 53 parts of buckle box II.
Detailed Description
Embodiments of the present invention will be further described with reference to fig. 1 to 14. The structures, proportions, sizes, etc. shown in the drawings herein are shown only with the understanding that they are disclosed in the accompanying drawings, and are not intended to limit the scope of the invention, which is defined in the claims, but are not to be construed as limiting the invention to any essential meaning in the technical sense, any structural modification, proportional change or size adjustment should still fall within the scope of the technical content disclosed in the invention without affecting the effects and the achieved objects of the invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
The fireproof door top-bottom lock comprises a main lock body 1 and an auxiliary lock body 2, wherein the auxiliary lock body 2 comprises a control lock body 3, an upper push rod lock body 4 and a lower push rod lock body 5 which are positioned at two ends of the control lock body 3, the main lock body 1 comprises a first lock box 10, a latch mechanism 11 and a driving mechanism 12 which are positioned in the first lock box 10, the driving mechanism 12 is used for driving the latch mechanism 11 to shrink in the first lock box 10, the end face of the driving mechanism 12, which corresponds to the outer side of a door, is connected with a lock cylinder part 124, and the end face of the corresponding door is connected with a first handle part 121;
The first lock case 10 is further provided with a reversing mechanism 123, the reversing mechanism 123 comprises a reversing piece 1230 which is arranged in the first lock case 10 and is in sliding fit up and down, and a reset piece 1231 which drives the reversing piece 1230 to move downwards, the inclined tongue mechanism 11 comprises a connecting rod 110, a fixing piece 111 sleeved on the connecting rod 110, inclined tongue blocks 112 and a sliding seat 113 which are arranged at two ends of the connecting rod 110, wherein the fixing piece 111 is fixed on the inner wall of the first lock case 10, the sliding seat 113 is arranged on the inner wall of the first lock case 10 and is in sliding fit left and right, the driving mechanism 12 comprises a shifting wheel 122, the shifting wheel 122 is connected with the sliding seat 113, and the reversing piece 1230 is inserted between the sliding seat 113 and the fixing piece 111 by the driving force of the reset piece 1231.
Referring to fig. 1 to 4 of the accompanying drawings, a main lock body 1 is provided with a latch mechanism 11, and a telescopic latch block 112 slides out of a first lock box 10, so that automatic and rapid locking of a door leaf is realized, and the operation is convenient. When unlocking is needed, the outside of the door is inserted into the lock core part 124 through a key, so that the driving wheel 122 is driven to rotate, and the inside of the door drives the driving wheel 122 to rotate through rotating the first handle part 121. The thumb wheel 122 drives the sliding seat 113 to move towards the direction opposite to the inclined tongue block 112, so as to drive the connecting rod 110 to move, shrink the inclined tongue block 112 into the first lock box 10, and achieve the aim of quick unlocking. Through upwards moving the reversing piece 1230, the inclined tongue block 112 can completely slide out of the first lock box 10, the reversing piece 1230 is reset by the reset piece 1231, the reset piece 1231 is a torsion spring, and the inclined face of the inclined tongue block 112 is changed by rotating the inclined tongue block 112, so that the door leaf locking device can adapt to door leaf locking in different directions. After the reversing adjustment is completed, the inclined tongue block 112 is pushed towards the first lock box 10, so that the reversing piece 1230 is displaced to a position between the sliding seat 113 and the fixing piece 111, and the inclined tongue mechanism 11 is positioned, thereby being convenient for normal work. The improvement realizes that the main lock body 1 can be unlocked outside the door through the key, and the door is unlocked through the first handle part 121, so that the safety performance is improved and the privacy performance is also protected.
The upper push rod lock body 4 comprises a second lock box 40, an upper bolt part 42 positioned in the second lock box 40, a reset part 43 and a first buckle box 41 positioned outside the second lock box 40, wherein the reset part 43 is used for driving the upper bolt part 42 contracted in the second lock box 40 to move outside the second lock box 40 and lock with the first buckle box 41, the reset part 43 is connected with an upper push rod 44, the upper push rod 44 extends to the control lock body 3 for internal fixation, the lower push rod lock body 5 comprises a third lock box 50, a lower bolt part 51 positioned in the third lock box 50, a push part 52 and a second buckle box 53 positioned outside the third lock box 50, the push part 52 is used for pushing the lower bolt part 51 contracted in the third lock box 50 to the outside of the third lock box 50 and locks with the second buckle box 53, the push part 52 is connected with a lower push rod 520, and the lower push rod 520 extends to the control lock body 3 for internal fixation. The upper latch portion 42 includes a latch head 420, a pull plate 421 is disposed between the upper push rod 44 and the latch head 420, a first torsion spring 422 is disposed on the pull plate 421, the first torsion spring 422 drives the pull plate 421 to move toward the first buckle box 41, so that the latch head 420 moves out of the second lock box 40 and is inserted and matched in the first buckle box 41, the reset portion 43 includes a reset roller 430 and a reset paddle 431, the reset roller 430 is slidably matched in the second lock box 40, a second torsion spring 432 is disposed at the tail portion of the reset roller 430, the second torsion spring 432 drives the end portion of the reset paddle 431 to move out of the second lock box 40 and is clamped and matched in the first buckle box 41, the end portion of the reset paddle 431 is sleeved on the rotary shaft 436 and is in running fit with the tail portion of the reset roller 430, the tail portion of the reset paddle 431 swings up and down, a third torsion spring 433 is disposed on the reset paddle 431, and one end of the reset paddle 431 far away from the rotary shaft 436 is lifted up by the third torsion spring 433 and is in an upward state and is in contact with the pull plate 421. the pull plate 421 is provided with a supporting block 423, one end surface of the supporting block 423 is abutted against the reset pulling piece 431, the other end surface is abutted against the end of the torsion spring II 432, the reset pulling piece 431 is provided with a clamping block 434, the torsion spring III 433 is sleeved on the rotating shaft 436, the end of the torsion spring III is buckled on the clamping block 434, the reset pulling piece 431 is also provided with a supporting inclined plane 435, and the tail of the reset roller 430 is abutted against the supporting inclined plane 435. The reset roller 430 includes a sliding frame 437 and balls 438, the sliding frame 437 is provided with a first sliding block 439, the bottom wall of the second lock case 40 is provided with a sliding slot 400 for the sliding block 439 to slide, and the first lock case 41 is provided with a slot 410 for the latch head 420 to insert and a bayonet 411 for the balls 438 to clamp. The pushing part 52 comprises a push plate 521 which is in sliding fit on the inner wall of the lock box three 50, one end of the push plate 521 is connected with the push rod 520, and the other end is connected with the lower plug pin part 51. The upper push rod 44 and the lower push rod 520 each comprise an assembly end 440 and a connecting shaft end 441, an adjusting threaded rod 442 is arranged between the assembly ends 440 and the connecting shaft ends 441, and two ends of the adjusting threaded rod 442 are respectively inserted into the assembly ends 440 and the connecting shaft ends 441 and are fixed in a threaded fit.
In combination with fig. 5 to 9 of the specification, the operation principle of the push rod lock body 4 is that the buckle box I41 is arranged at the upper end of a door frame, when the door is opened and unlocked, the lock body 3 is controlled by operation, the push rod 44 is driven to move downwards, so that the pull plate 421 is driven to move, and the latch head 420 is driven by the pull plate 421 to retract and lock the box II 40, so that the unlocking is realized. When the door panel is closed, the ball 438 contacts the first buckle box 41, the ball 438 receives the extrusion force from the first buckle box 41, the sliding frame 437 moves towards the second buckle box 40, the reset roller 430 contacts the pressing inclined plane 435 on the reset pulling piece 431 when moving, one end of the reset pulling piece 431 far away from the rotating shaft 436 is in a downward swinging state after being pressed by the pressing force, and the position of the pulling plate 421 is not limited any more due to the displacement of the reset pulling piece 431, the pulling plate 421 moves towards the first buckle box 41 under the driving of the first torsion spring 422, the pulling plate 421 pushes the plug pin 420 to move out of the first buckle box, and the plug pin 420 is inserted into the slot 410 of the buckle box, so that automatic reset locking is realized. When encountering dangerous situations, the fireproof door can be locked in time, and the safety performance of the lockset in use is improved. The operation principle of the push rod lock 5 is that the push rod 520 drives the push plate 521 to move when unlocking, so that the lower plug pin part 51 is contracted and the lock box III 50 is unlocked. When closing, the push rod 520 is not forced to move upwards, and the lower plug pin part 51 moves under the action of gravity to lock the third box 50 and is matched with the second buckle.
The control lock body 3 comprises a lock box four 30, a linkage device is arranged in the lock box four 30, the linkage device comprises a rotating base 31, one end of the rotating base 31 is positioned in the lock box four 30, the other end of the rotating base 31 extends out of the lock box four 30, a handle part two 32 is matched on the rotating base 31 positioned out of the lock box four 30, a rotating part 33 is sleeved on the rotating base 31 positioned in the lock box four 30, the rotating part 33 comprises a rotating piece 330 and pull pieces 331 positioned at two ends of the rotating piece 330, one ends of the two pull pieces 331 are positioned in the lock box four 30 and provided with a hollow area 332 in a fan shape, a V-shaped chute 333 is arranged in the hollow area 332, the end part of the rotating piece 330 is provided with a slide block two 340 which is positioned in the V-shaped chute 333 and is in sliding fit, and the other ends of the two pull pieces 331 extend out of the lock box four 30 and are respectively connected with an upper push rod 44 and a lower push rod 520. The pull tab 331 comprises a plate 334 and a connecting block 335 extending out of the lock box IV 30, wherein an assembly groove 336 is formed in the connecting block 335, and insertion holes 337 for inserting screws are formed in two side walls of the assembly groove 336. The rotating piece 330 is provided with a sleeve opening 338, two protruding blocks 339 are arranged on the side wall of the sleeve opening 338, and clamping grooves 310 matched with the protruding blocks 339 are arranged on two sides of the rotating base 31.
Referring to fig. 10 to 14 of the drawings, when the auxiliary lock body 2 is unlocked, the second handle portion 32 is rotated, the second handle portion 32 drives the rotating base 31 to move, the rotating base 31 drives the rotating plate 330 to move, the rotating plate 330 moves along the V-shaped chute 333 on the pull tab 331 in the rotating process (refer to the state of fig. 11 of the drawings), the pull tab 331 moves towards the rotating base 31, so that the upper push rod 44 and the lower push rod 520 are both retracted towards the fourth lock box 30, and the latch head 420 is separated from the first lock box 41, and the lower latch portion 51 is separated from the second lock box. After the second rotating handle portion 32 resets, the rotating piece 330 is driven to reset, and due to the arrangement of the hollowed-out area 332, the reset of the rotating piece 330 does not affect the state of the pull piece 331, and the pull piece 331 is reset by automatic locking of the upper push rod lock body 4 and the lower push rod lock body 5. The structure improvement reduces the structure of the hinge point on the control mechanism, so that the work of the lock is smoother and more stable, the unlocking efficiency is improved, and the working quality of the whole lock is improved.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (8)
1. The fireproof door top-bottom lock comprises a main lock body and an auxiliary lock body, wherein the auxiliary lock body comprises a control lock body, an upper push rod lock body and a lower push rod lock body which are positioned at two ends of the control lock body, and the fireproof door top-bottom lock is characterized in that the main lock body comprises a lock box I, an inclined tongue mechanism and a driving mechanism, wherein the inclined tongue mechanism and the driving mechanism are positioned in the lock box I, the driving mechanism is used for driving the inclined tongue mechanism to shrink in the lock box I, the end face, corresponding to the outside of a door, of the driving mechanism is connected with a lock core part, and the end face, corresponding to the inside of the door, of the main lock body is connected with a handle part I;
The upper push rod lock body comprises a lock box II, an upper bolt part, a reset part and a buckle box I, wherein the upper bolt part is positioned in the lock box II, the buckle box I is positioned outside the lock box II, the reset part is used for driving the upper bolt part contracted in the lock box II to move outside the lock box I and lock with the buckle box I, the reset part is connected with an upper push rod, the upper push rod extends into the control lock body to be fixed, the lower push rod lock body comprises a lock box III, a lower bolt part positioned in the lock box III, a push part and a buckle box II positioned outside the lock box III, the push part is used for pushing the lower bolt part contracted in the lock box III to the outside of the lock box III and locks with the buckle box II, the push part is connected with a lower push rod, the lower push rod extends to the control lock body to be fixed, the push part comprises a push plate which is positioned on the inner wall of the lock box III and is in sliding fit, one end of the push plate is connected with the lower push rod, and the other end of the push plate is connected with the lower bolt part;
The control lock body comprises a lock box four, be equipped with interlock in the lock box four, interlock is including rotating the base, the one end that rotates the base is located lock box four, and the other end extends to lock box four outsides, and it has a handle portion second to be located the cooperation on the four outsides of lock box's the rotation base, and the rotation base cover that is located lock box four is equipped with rotation portion, rotation portion includes the rotor plate to and be located the pulling-on piece at rotor plate both ends, and the one end of two pulling-on pieces is located lock box four, and is equipped with and is fan-shaped fretwork district, have V-arrangement spout in the fretwork district, the tip of rotor plate is equipped with and is located V-arrangement spout sliding fit's slider second, and the other end of two pulling-on pieces extends to lock box four outsides, is connected with push rod, push rod down respectively.
2. The fireproof door lock according to claim 1, wherein the first lock box is further internally provided with a reversing mechanism, the reversing mechanism comprises a reversing piece which is arranged in the first lock box and is in sliding fit up and down, and a reset piece which drives the reversing piece to move downwards, the inclined tongue mechanism comprises a connecting rod, a fixing piece which is sleeved on the connecting rod, inclined tongue blocks and sliding seats which are arranged at two ends of the connecting rod, the fixing piece is fixed on the inner wall of the first lock box, the sliding seats are arranged on the inner wall of the first lock box and are in sliding fit left and right, the driving mechanism comprises a shifting wheel, the shifting wheel is connected with the sliding seats, and the reversing piece is inserted between the sliding seats and the fixing pieces by the driving force of the reset piece.
3. The fireproof door top-bottom lock according to claim 1, wherein the upper bolt portion comprises a bolt head, a pull plate is arranged between the upper push rod and the bolt head, a torsion spring I is arranged on the pull plate, the torsion spring I drives the pull plate to move towards one direction of the buckling box, the bolt head is enabled to move to the outside of the lock box and is inserted and matched in the buckling box I, the reset portion comprises a reset roller and a reset pulling piece, the reset roller is located in the second locking box and is in sliding fit, a torsion spring II is arranged at the tail of the reset roller, the end of the reset pulling piece is driven to move to the outside of the lock box by the torsion spring II and is clamped and matched in the buckling box I, the end of the reset pulling piece is sleeved on the rotating shaft and is in running fit with the tail of the reset roller, the tail of the reset pulling piece is in up-down swinging motion, a torsion spring III is further arranged on the reset pulling piece, and one end of the reset pulling piece far away from the rotating shaft is in an upward lifting state by the torsion spring III and is in contact with the pull plate.
4. The fireproof door lock according to claim 3, wherein the pull plate is provided with a supporting block, one end face of the supporting block is contacted with the reset pulling piece, the other end face of the supporting block is contacted with the end of the torsion spring II, the reset pulling piece is provided with a clamping block, the torsion spring III is sleeved on the rotating shaft, the end of the torsion spring III is buckled on the clamping block, the reset pulling piece is also provided with a supporting inclined plane, and the tail of the reset roller is contacted with the supporting inclined plane.
5. The fire door lock of claim 4, wherein the reset roller comprises a sliding frame and balls, a first sliding block is arranged on the sliding frame, a sliding groove for sliding fit of the first sliding block is arranged on the bottom wall of the second lock box, and a slot for inserting a bolt head and a bayonet for clamping the balls are arranged on the first lock box.
6. The fireproof door lock of claim 1, wherein the upper push rod and the lower push rod comprise an assembly end and a connecting shaft end, an adjusting threaded rod is arranged between the assembly end and the connecting shaft end, and two ends of the adjusting threaded rod are respectively inserted into the assembly end and the connecting shaft end to be fixed in a threaded fit manner.
7. The fireproof door lock of claim 1, wherein the pull tab comprises a plate block and a connecting block extending to the outside of the lock box, an assembly groove is formed in the connecting block, and insertion holes for inserting screws are formed in two side walls of the assembly groove.
8. The top and bottom lock of the fireproof door of claim 7, wherein the rotating piece is provided with a sleeve opening, two protruding blocks are arranged on the side wall of the sleeve opening, and clamping grooves matched with the protruding blocks are arranged on two sides of the rotating base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310022393.5A CN115874874B (en) | 2023-01-07 | 2023-01-07 | Fire door lock |
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| CN202310022393.5A CN115874874B (en) | 2023-01-07 | 2023-01-07 | Fire door lock |
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| CN115874874B true CN115874874B (en) | 2025-08-08 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3417054A1 (en) * | 1984-05-09 | 1985-11-14 | BKS GmbH, 5620 Velbert | Espagnolette fastening for the standing wing of two-wing doors, especially automatically closing fire doors |
| CN108930450A (en) * | 2018-08-21 | 2018-12-04 | 江苏群雄智能科技有限公司 | A kind of multi-functional quite lock |
| CN110670968A (en) * | 2019-10-28 | 2020-01-10 | 中山市杨格锁业有限公司 | Adjustable door lock device |
| CN219569845U (en) * | 2023-01-07 | 2023-08-22 | 北京诚品宏通科技发展有限公司 | Fireproof door lock |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITBO20030560A1 (en) * | 2003-09-30 | 2005-04-01 | Cisa Spa | NOZZLE FOR SECONDARY DOOR OF FIREPROOF DOORS |
| CN101210465B (en) * | 2006-12-28 | 2012-03-14 | 方大集团股份有限公司 | Pushing bar lock |
| DE102014222894A1 (en) * | 2014-11-10 | 2016-05-12 | Aug. Winkhaus Gmbh & Co. Kg | Counter lock of a espagnolette lock of a double-leaf door |
| CN114293859B (en) * | 2021-12-02 | 2025-04-15 | 上海向安实业有限公司 | Mortise lock for double-opening escape door |
-
2023
- 2023-01-07 CN CN202310022393.5A patent/CN115874874B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3417054A1 (en) * | 1984-05-09 | 1985-11-14 | BKS GmbH, 5620 Velbert | Espagnolette fastening for the standing wing of two-wing doors, especially automatically closing fire doors |
| CN108930450A (en) * | 2018-08-21 | 2018-12-04 | 江苏群雄智能科技有限公司 | A kind of multi-functional quite lock |
| CN110670968A (en) * | 2019-10-28 | 2020-01-10 | 中山市杨格锁业有限公司 | Adjustable door lock device |
| CN219569845U (en) * | 2023-01-07 | 2023-08-22 | 北京诚品宏通科技发展有限公司 | Fireproof door lock |
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| CN115874874A (en) | 2023-03-31 |
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