CN2729251Y

CN2729251Y - Improved lock for fire-proof door

Info

Publication number: CN2729251Y
Application number: CN 03201005
Authority: CN
Inventors: 林清田
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-01-15
Filing date: 2003-01-15
Publication date: 2005-09-28
Anticipated expiration: 2013-01-15

Abstract

The utility model provides an improved lock for the fire-proof door, and mainly aims to the improvement on the control structure of the fireproof door locking bolt and the linkage mode of the handle pressing structure. The operator directly uses the forward pressing mode to press the handle to draw the lock bolt of the door lock to move, and thus the effect of conveniently opening the door lock is reached. A first opening unit is arranged in the fire-proof door leaf, and causes the locking bolt of the door lock to do telescopic movement. Simultaneously, a second opening unit which is arranged on the fire-proof door, and a pressing handle is arranged in the pressing frame seat of the second opening unit. When the pressing handle is subjected to the force and downward pressed, a connecting rod is drawn to do horizontal movement, and the connecting rod is connected with a shifting rod to generate the rocking movement. A pulley which is arranged on one side of the shifting rod, extends into the interior of the first opening unit to push the locking bolt seat connecting with the locking bolt to do horizontal movement. Thus, the locking bolt is telescopic in the door lock to generate the action of opening the door lock.

Description

A kind of improved fireproofing door lock

Technical field

The utility model is a kind of improved fireproofing door lock, particularly at the improvement of labeled door locking bolt control structure and handle pressing structure interlock mode, the operator is easily pushed forward and opens fireproofing door lock.

Background technology

As Fig. 1, the unlatching mode of occupation of the general fireproofing door lock of using always, be to push to be horizontally set with a squeeze grip 11 in the handle skeleton frame 10 of labeled door central authorities, move down, draw the lock housing 12 protruding or withdrawal locking bolt 12d that are positioned at an inboard by squeeze grip 11, can make labeled door form blocking and can't open, also or because of door lock withdrawal locking bolt 12d unlocking state can be unlocked because of door lock stretches out locking bolt 12d.Above-mentioned labeled door door lock squeeze grip 11 commonly used is with a kind of manner of execution operation of baroclining, just when squeeze grip 11 is pressed downwards by the user, this squeeze grip 11 is to move downward with oblique move mode, this is seen also the labeled door door lock arrangement that Fig. 2 shows, watch for convenience, this door lock is rotated 90 degree, and to be level horizontal, can find out that being positioned at handle skeleton frame 10 inside is installed with one respectively and is available for users to the squeeze grip 11 that hand is pressed downwards, and connection is installed with the lock housing 12 of locking bolt 12d, this squeeze grip 11 is connected by two holders 13 that screw is locked in handle skeleton frame 10 bottoms, these holder 13 two side edge respectively are provided with a skewed slot 13a, wear second wheel traveller 13b thus, and worn by a tip body 13c and to be fixed on the squeeze grip 11 two side edge, be positioned at bottom, said fixing seat 13 front side simultaneously, wear fixing the one fixing pin 13e that unrolls shape spring clamp 13d, this spring clamp 13d one end is touched in this roller traveller 13b bottom, and it is applied upwards the strength that urges, the above-mentioned tip body 13c that wears roller traveller 13b can hold squeeze grip 11 upper end position at handle skeleton frame 10 during normality, when the user applies pressure to squeeze grip 11 with hand, then above-mentioned rollers traveller 13b promptly be subjected to this push strength along skewed slot 13a to lower slider, so just oblique move in handle skeleton frame 10 of squeeze grip 11.And be positioned at the lock housing 12 that handle skeleton frame 10 front ends connect, be to be installed with a swinging block 12a as shown in Figure 3, this swinging block 12a branch stretches to both sides and forms a drive division 12b and an operand 12c, wherein the end of drive division 12b is the inner face position that touches in squeeze grip 11, operand 12c then touches in the locking bolt 12d one concave part 12e in being installed with lock housing 12, when the user presses squeeze grip 11 with hand, then the drive division 12b of swinging block 12a is pressurized the displacement downwards and operand 12c of opposite side is moved up, and while operand 12c is located at hook the locking bolt 12d interlock of concave part 12e, to swing counterclockwise,, locking bolt 12d forms the action of opening door lock in the lock housing 12 so just withdrawing.

Analyze the action that above-mentioned fireproofing door lock commonly used is opened, though the user is as shown in Figure 3 when carrying out push action, with vertical direction by being pressed on the squeeze grip 11, but this squeeze grip 11 is to be installed with that the direction along holder 13 skewed slot 13a moves in handle skeleton frame 10, just squeeze grip 11 produces moving of moving of a vertical direction and a horizontal direction along skewed slot 13a, therefore user's hand strength of acting on squeeze grip 11 just is broken down into the vertical stress component that locking bolt 12d is produced interlock, and the horizontal component that locking bolt 12d is not had at all any effect, so causing the user must expend bigger hand strength puts on the squeeze grip 11, and squeeze grip 11 has a horizontal direction displacement along the slip of skewed slot 13a direction, it is different to cause squeeze grip 11 moving directions and user's hand to push direction, thereby influences the comfort that user's hand is pushed door lock.

In addition, the locking bolt of above-mentioned labeled door door lock commonly used stretches out after the lock housing 12, as shown in Figure 1, be to insert to be located in the locking bolt seat 14 of doorframe outer side edges, this locking bolt seat 14 is provided with for the slotted eye that is installed with locking bolt 12d, because of this locking bolt seat 14 is to be sticked the mode device on doorframe, profile has the defective that protrudes in the doorframe surface and influence its aesthetic appearance, and this locking bolt seat 14 is to expose to the doorframe side, being subjected to malice easily beats and knocks and destroyed, so it is attractive in appearance inadequately and be subjected to the use defective destroyed easily that above-mentioned fireproofing door lock commonly used has on the profile, should be improved.

The utility model content

For overcoming the shortcoming of above-mentioned prior art, main purpose of the present utility model is to provide a kind of improved fireproofing door lock, can directly the handle of door lock be moved for the operator, reach the result of use of comfortable press-started door lock so as to the locking bolt motion in the traction door lock in the vertical pressing mode.

Another purpose of the present utility model is to provide a kind of improved fireproofing door lock, in the time of can making the locking bolt of this fireproofing door lock stretch out lock housing, can directly be inserted in the keyhole of doorframe inner face locking bolt sheet, so as to making fireproofing door lock when the blocking, avoid existing locking bolt seat to expose the doorframe side and be subjected to malicious sabotage, to increase the safety in utilization of fireproofing door lock.

For achieving the above object, the utility model provides a kind of improved fireproofing door lock, and the related fireproofing door lock of the utility model comprises that first opens structures such as unit, the second unlatching unit, traction switch block, draw bar, driving lever.First opens the unit, is embedded in this labeled door in being, and is installed in the start button institute interlock on this labeled door surface, to promote to be installed with in this first locking bolt motion of opening the locking bolt seat in the unit, this labeled door is entered unblank, blocking.Second opens the unit, be to be installed up to this start button place relatively, this labeled door surface, and this second unlatching unit is provided with a squeeze grip.The traction switch block be to be arranged on rotationally in this squeeze grip, and this traction switch block is bending to be formed with centre end and both side ends.Draw bar is to be connected on the side end of this traction switch block.Driving lever is to be connected this draw bar one end and to extend in this labeled door, and is that the draw bar push-and-pull of this squeeze grip institute interlock produces motion, makes this labeled door enter open and close lock state to promote this locking bolt motion.

The related fireproofing door lock of the utility model is improved at the squeeze grip transmission mechanism of fireproofing door lock, so that being opened the unit, first of this labeled door is installed in the door leaf interlayer, and the mode of the locking bolt telescopic displacement of this door lock that moves, also can utilize simultaneously a traction switch block that is horizontally set with in the squeeze grip of unit is opened by second of labeled door central authorities to be controlled, and this first flexible displacement of locking bolt of opening the unit of moving, when this squeeze grip is stressed when pushing downwards, be able to affect a draw bar and a connecting rod to move horizontally by this traction switch block, and an end of this connecting rod is connected with a driving lever, make driving lever be connected the bar traction and produce rocking action, wherein driving lever one end is provided with a pulley and can stretches into first and open inside, unit and move horizontally with a locking bolt seat that promotes to connect locking bolt, and then this locking bolt is stretched along with horizontal movement in this first unlatching unit, constitute the action of fireproofing door lock locking or unlocking.

In addition, first of fireproofing door lock of the present utility model is opened inside, unit and is equiped with tumbler, can be connected a swing handle by a tightening latch by wherein moving block, making this moving block can be swing handle rotates and drives one and have the rotatable lamella turn of stretching out shape block arm, the block arm of this rotatable lamella is to be connected on the locking bolt seat that connects a locking bolt, the block arm urges at the locking bolt seat it is moved along horizontal direction when rotatable lamella rotates, so the locking bolt that the locking bolt seat is connected is scalable in lock housing, constitute the action of fireproofing door lock locking or unlocking, provide the operator directly handle to be pushed and drawn door lock locking bolt motion, to reach the effect of comfortable unlatching door lock to push mode forward.

The locking bolt seat of fireproofing door lock of the present utility model can be made of heat-fusible materials, and when door lock presented the condition of high temperature because of fire, the locking bolt seat that this hot melt material constitutes melted because of reaching melting temperature.In any case thereby rotation swing handle or squeeze grip, when indoor breaking out of fire, all can keep fireproofing door lock and be blocking, just by outdoor direction and can't open fire-proof door leaf, open and flame is scurried out hurt sb.'s feelings or make the intensity of a fire to be extended down to other place to extending out in order to avoid labeled door is opened by mistake by ignorant person.Fireproofing door lock safe transmission device of the present utility model has preferable use effect and can not fail, the tool effective door lock arrangement that is perfectly safe.

Description of drawings

Fig. 1 is the schematic appearance of general fireproofing door lock commonly used;

Fig. 2 is the organigram of fireproofing door lock commonly used;

Fig. 3 is the usage operation schematic diagram of fireproofing door lock commonly used;

Fig. 4 is the schematic appearance of the utility model fireproofing door lock;

Fig. 5 is that first of the utility model fireproofing door lock is opened the unit structure decomposing schematic representation;

Fig. 6 is that second of the utility model fireproofing door lock is opened the unit structure decomposing schematic representation;

Fig. 7 is the part assembly organigram of the utility model fireproofing door lock;

Fig. 8 A and Fig. 8 B are the decomposing schematic representation of the utility model fireproofing door lock.

The specific embodiment

Embodiment

Be illustrated in figure 4 as the schematic appearance of the utility model fireproofing door lock, comprise that first opens the unit 2A and the second unlatching unit 2B, improved at the transmission mechanisms in the squeeze grip 35 of the unlatching of second on labeled door unit 2B, simultaneously first of labeled door being opened unit 2A is installed in the interlayer of door leaf, with these first locking bolt 21 telescopic movings of opening in the unit of moving, and then this locking bolt 21 is stretched along with moving horizontally in first open in the unit, form the action of fireproofing door lock locking or unlocking.

Fig. 5, Fig. 6 are that first of fireproofing door lock structure of the present utility model is opened the decomposing schematic representation that the unit is opened in unit and second.This first unlatching unit 2A mainly comprises: a lock housing 20 is in order to be installed with the assembly of the inner locking bolt 21 in the first unlatching unit; An and tumbler 23, be to be installed in extraneous 25 interlocks of swing handle for one, it has on one, following moving block 23a can drive rotatable lamella 23b rotation, can promote a locking bolt seat 22 generations by the last block arm 23c who forms of this rotatable lamella 23b moves horizontally, and relative locking bolt seat 22 1 protuberance 22a horizontal movement directions are formed with slotted eye 24 in lock housing 20 bottom surfaces, and make these locking bolt seat 22 1 end interlocks to this locking bolt 21, this locking bolt 21 can be stretched in this lock housing 20 along with these locking bolt seat 22 moving horizontally of interlock, and these locking bolt seat 22 1 sides form overhanging protuberance 22a.

As shown in Figure 6, this second is opened unit and mainly comprise: a locking closure 30 is in order to being installed with the locking bolt transmission mechanism component, and its bottom is fixed in a locking closure seat board 31, and an end is connected on the underframe plate 32, and this underframe plate 32 be embedded at one be the concave shape space the seat frame 33; One lower seat 34 is to be installed in underframe plate 32 two ends, and the shape of this lower seat 34 is to be subtriangular, and is provided with a pivot hole 34a on its top; One squeeze grip 35 is to be installed with in the present frame 33, and can moves up and down for the press-started door lock of user's hand; Bearing 36 on one, are to be installed in this two ends, squeeze grip 35 bottom surface, and shape of bearing 36 is to be subtriangular on this, is provided with a pivot hole 36a in its bottom; One traction switch block 37 is rectangular bending shapes being formed with centre end 37a, left part 37b and right part 37c, and is provided with pivot hole 37d, 37e, 37f on each end; One draw bar 38 is elongated shapes, and respectively wears a tip body 38a at these draw bar 38 two ends, in the pivot hole 37e that is connected traction switch block 37 left part 37b; One connecting rod 39 is to be connected draw bar 38 1 ends, can bear the motion of draw bar 38 and produces the pulling force of horizontal direction; One driving lever 40 is to be connected this connecting rod 39 1 ends, can be 39 push-and-pulls of connecting rod and produces the action of waving, and promotes this locking bolt seat 22 and moves horizontally to stretch into by first slotted eye 24 of opening the unit; And a lock cover base 41, be to be installed with this connecting rod 39 and driving lever 40, and this driving lever 40 is to be located at by a tip body 41b to produce the action of waving on the lock cover base 41.By the combination of above-mentioned each fireproofing door lock assembly, when user's hand with vertical direction squeeze grip 35, can very laborsaving and comfortable fireproofing door lock be opened and the unlocking state.

These squeeze grip 35 each interlockings of inner face two ends have last bearing 36, the bottom that should go up bearing 36 is provided with a pivot hole 36a, be to fix at this for the interior tip body 36b that is inserted of the pivot hole 37f of this traction switch block 37 right part 37c, the tip body 36b that makes traction switch block 37 be able to bearing 36 on this is that fulcrum is swung.In addition, the body of this traction switch block 37 is formed with the position of recessed channel, can be for being connected across on the draw bar 38 of an elongate in shape, wherein draw switch block 37 because of in the centre end 37a pivot hole 37d, plugging a tip body 34b is fixed in the pivot hole 34a on lower seat 34 tops and interconnects, when last bearing 36 bear that user's squeeze grip 35 applies urge strength and during to bottom offset, then this traction switch block of interlock 37 left part 37b move down simultaneously, the tip body 34b that makes the right part 37c that draws switch block 37 comply with in the lower seat 34 pivot hole 34a is that fulcrum is swung, so the draw bar 38 that is connected is moved horizontally towards the swaying direction generation, and then the connecting rod 39 of draw bar 38 front ends is also along with moving horizontally.

The front end of this connecting rod 39 is the kink 39a that form rectangular shaped, the bottom of this kink 39a is provided with pivot hole 39b, can be fixed in the pivot hole 40b of a driving lever 40 central authorities and interconnect for wearing a tip body 39c, wherein this tip body 39c also is located in the slotted eye 41c of ovalize on the lock cover base 41 simultaneously, by tip body 39c in the horizontal movement of slotted eye 4c and increase the amplitude of fluctuation of driving lever 40, these driving lever 40 upper ends are provided with a pivot hole 40c, can be fixed in the pivot hole 41a of lock cover base 41 for wearing another tip body 41b, making driving lever 40 can be that fulcrum is connected 39 push-and-pulls of bar and produces rocking action according to this tip body 41a.Still be provided with a pivot hole 40a in the bottom of this driving lever 40, can be for wearing the bottom that a tip body 42a is hubbed on a pulley 42 driving lever 40, the pulley 42 of these driving lever 40 bottoms is can be protruding from the slotted eye 31a that these locking closure seat board 31 central authorities are offered, and the pulley 42 of driving lever 40 can inwardly stretch into from this formed slotted eye 24 in lock housing 20 bottom surfaces in addition, and this pulley 42 is to touch on the protuberance 22a of locking bolt seat 22, move horizontally by driving lever 40 swing generations, make pulley 42 promote locking bolt seats 22 and stretch out lock housing 20 and the action of formation fireproofing door lock locking.

As shown in Figure 5, these lock housing 20 contents are provided with can be by the tumbler 23 of 25 interlocks of user's turn swing handle, this swing handle 25 is for being installed in labeled door in the face of on the side door fan outside the outdoor direction, and swing handle 25 is to drive tumbler 23 with the tightening latch 26 that button is established, and this tumbler 23 is provided with on one, following moving block 23a, can drive respectively on one, following rotatable lamella 23b rotation, on this, following rotatable lamella 23b is positioned at a side and forms the concave part 22b that the block arm 23c that stretches out shape is connected in locking bolt seat 22, when moving block 23a was rotated handle 25 driven rotary, this block arm 23c promptly can rotate and push the locking bolt seat 22 of institute's clamping to side generation horizontal movement.

These locking bolt seat 22 central interior form an emptying aperture 22c, the pipe spreader 27 that can be flat scalariform leading section 27a for a sheathed end, the leading section 27a of this pipe spreader 27 forms an open-work 27b, can connect locking bolt 21 for penetrating a screw 27c, and this pipe spreader 27 is innerly as shown in Figure 7 to form end sealing and the other end is opened the guide hole 27d with appropriate depth, can be plugged for an axostylus axostyle 28 that is equipped with elastic body 27e.One end of this axostylus axostyle 28 forms external diameter is prominent scalariform greater than elastic body 27e aperture fastener 28a, locate after can making elastic body 27e be sheathed on this position, the length of elastic body 27e is then respectively greater than the guide hole 27d degree of depth of axostylus axostyle 28 and pipe spreader 27, and so the fastener 28a of axostylus axostyle 28 urges elastic body 27e to be in the guide hole 27d that compressive state is located in pipe spreader 27.In addition, the fastener 28a of these axostylus axostyle 28 1 ends is plugged on lock housing 20 sidewalls in the formed tip hole 20a, make axostylus axostyle 28 1 ends be installed in lock housing 20 sidewall positions, and another end ring is located at elastic body 27e on the axostylus axostyle 28 and just urges pipe spreader 27 and move towards doorframe locking bolt sheet 29 directions, and then produces and promote the action that locking bolt 21 stretches out lock housing 20.And the concave part 22b that works as locking bolt seat 22 is promoted by the sheet 23b one block arm 23c institute clamping that rotates up and down of a swing handle 25 interlocks, because the strength that block arm 23c rotates is to urge the elastic force that is produced in pipe spreader 27 greater than elastic body 27e, doorframe locking bolt sheet 29 directions move so locking bolt seat 22 is promptly promoted dorsad by block arm 23c, make the action that constitutes the fireproofing door lock unlocking in the locking bolt 21 withdrawal lock housings 20.

In addition, this locking bolt seat 22 is positioned at the protuberance 22a that a side forms horizontal shape, the direction that this protuberance 22a moves horizontally along locking bolt seat 22 with respect to lock housing 20 bottom surfaces forms a slotted eye 24, this slotted eye 24 sees also shown in Fig. 8 A and Fig. 8 B and can stretch into thus for a driving lever 40, and the pulley 42 that driving lever 40 bottoms are pivoted is to touch on the protuberance 22a of locking bolt seat 22, when driving lever 40 is pressed handle 11 when depressing as shown in Figure 4, interlock one draw bar 38 is promoted and is produced moving of swing, so being promoted to produce, the locking bolt seat 22 that the pulley 42 of driving lever 40 1 ends is about to institute's clamping moves horizontally, the locking bolt 21 of locking bolt seat 22 1 ends is moved towards the direction away from this doorframe locking bolt sheet 29, constitute the action of fireproofing door lock unlocking so locking bolt 21 is promptly withdrawn in the lock housing 20.

The locking bolt seat 22 of this fireproofing door lock can be made of a heat-fusible materials, when door lock presents the condition of high temperature because of fire, the locking bolt seat 22 that this hot melt material constitutes promptly melts because of reaching melting temperature, so pipe spreader 27 is not promoted by the 23b of the rotatable lamella up and down block arm 23c of tumbler 23 just, even pull swing handle 25 or squeeze grip 25 this moment, also can't move towards the doorframe direction by impeller-hub sleeve pipe 27, but the axostylus axostyle 28 of institute's socket is equipped with elastic body 27e in the pipe spreader 27 relatively, can produce elastic force promotes this pipe spreader 27 and moves towards doorframe locking bolt sheet 29 directions, make locking bolt 21 that pipe spreader 27 1 ends connect move and stretch out lock housing 20 simultaneously towards doorframe locking bolt sheet 29 directions, thereby no matter be how to rotate swing handle 25 or squeeze grip 35, when indoor breaking out of fire, all can keep fireproofing door lock and be blocking, just also can't open fire-proof door leaf by outdoor direction, in order to avoid being opened by mistake to open and flame is scurried out by ignorant person, labeled door hurts sb.'s feelings, perhaps make the scene of a fire to be extended down to other place to extending out, the door lock operating characteristic that meets the fire safety of fire control law institute standard, the labeled door that the isolated scene of a fire of particularly building at high building or being provided with than the big interior space is used.Fireproofing door lock safe transmission device of the present utility model is to have preferable use effect, and failure can not take place and the effective door lock arrangement that is perfectly safe.

Claims

1. an improved fireproofing door lock is characterized in that, this improved fireproofing door lock comprises:

First opens the unit, is embedded in this labeled door in being, is installed in the start button institute interlock on this labeled door surface, is installed with in this first locking bolt motion of opening the locking bolt seat in the unit promoting, and this labeled door is entered unblank, blocking;

Second opens the unit, is to be installed up to this start button place relatively, this labeled door surface, and is provided with a squeeze grip in this second unlatching unit;

The traction switch block be to be arranged at rotationally in this squeeze grip, and this traction switch block is bending, to be formed with centre end and both side ends;

Draw bar is to be connected on the side end of this traction switch block;

Driving lever is to be connected this draw bar one end and to extend in this labeled door, is produced motion by the draw bar push-and-pull of this squeeze grip institute interlock, promotes this locking bolt motion, makes this labeled door enter open and close lock state.

2. improved fireproofing door lock as claimed in claim 1, it is characterized in that, the start button on this labeled door surface is a swing handle, with a tumbler of its interlock be to be embedded in the labeled door, be provided with one and rotate up and down piece, can drive one and rotate up and down the sheet rotation, a block arm that forms on this rotatable lamella can promote the horizontal movement of this locking bolt seat generation.

3. improved fireproofing door lock as claimed in claim 1 is characterized in that, this second is opened unit and also include a locking closure, and its bottom is fixed on the locking closure seat board, and an end is connected on the underframe plate, this underframe plate is fixed on a seat frame that is concavity.

4. improved fireproofing door lock as claimed in claim 3 is characterized in that, each tool one lower seat of these underframe plate two ends, and this lower seat position is in the bottom and be provided with a pivot hole.

5. improved fireproofing door lock as claimed in claim 1 is characterized in that, this traction switch block is rectangular bending shape, being formed with centre end, left part and right part, and is provided with the pivot hole on each end.

6. improved fireproofing door lock as claimed in claim 1, it is characterized in that, these two ends, squeeze grip bottom surface respectively are provided with bearing on, and bearing bottom is provided with a pivot hole on this, respectively wear a tip body for draw bar two ends that are strip and are connected in the pivot hole of traction switch block one end.

7. improved fireproofing door lock as claimed in claim 1, it is characterized in that this draw bar one end can be connected with a connecting rod, produces the pulling force of horizontal direction with the motion of bearing this draw bar, and make this connecting rod one end be connected to this driving lever, make this connecting rod push-and-pull produce rocking action.

8. improved fireproofing door lock as claimed in claim 7 is characterized in that this connecting rod and driving lever can be arranged in the lock cover base, and this driving lever is to wear that a tip body is hubbed on the lock cover base and produce rocking action.

9. improved fireproofing door lock as claimed in claim 8, it is characterized in that, this connecting rod front end forms a rectangular-shaped kink, the bottom of this kink is provided with the pivot hole, can be fixed in the pivot hole of driving lever central authorities and interconnect for wearing a tip body, and this tip body be located in the oval slotted eye of lock cover base in addition.

10. improved fireproofing door lock as claimed in claim 8 is characterized in that, this driving lever upper end is provided with a pivot hole, can be fixed in the pivot hole of a lock cover base for wearing a tip body, and making driving lever can be fulcrum according to this tip body, is connected bar institute's push-and-pull and produces oscillating motion.

11. improved fireproofing door lock as claimed in claim 8 is characterized in that, this driving lever bottom also is provided with a pivot hole, can the bottom that one pulley is hubbed on this driving lever be fixed for wearing a tip body.

12. improved fireproofing door lock as claimed in claim 1, it is characterized in that, this first unlatching unit has a lock housing in the labeled door interlayer, this lock housing bottom surface is formed with a slotted eye along the relative position of locking bolt seat one protuberance horizontal movement direction, this slotted eye can stretch into thus for a driving lever, driving lever is connected on the protuberance of locking bolt seat, when driving lever is swung, can promotes the generation of locking bolt seat and move horizontally.

13. improved fireproofing door lock as claimed in claim 12 is characterized in that, the bottom of this lock cover base is to be connected on the locking closure seat board, and these locking closure seat board central authorities offer a slotted eye, can stretch to thus in the slotted eye of lock housing bottom surface for the bottom of driving lever.

14. improved fireproofing door lock as claimed in claim 1, it is characterized in that, this locking bolt seat central interior forms an emptying aperture, the pipe spreader that can be flat scalariform leading section for a sheathed end, this pipe spreader is inner to form end sealing and the other end is opened and guide hole with appropriate depth, can be equipped with elastomeric axostylus axostyle for one and be plugged.

15. improved fireproofing door lock as claimed in claim 14, it is characterized in that, this axostylus axostyle one end form external diameter greater than the elastic body aperture, be the fastener of prominent scalariform, make elastomer sleeve be located at this, play positioning action, this elastomeric length is then respectively greater than the guide hole degree of depth of axostylus axostyle and pipe spreader.

16. improved fireproofing door lock as claimed in claim 1 is characterized in that, this locking bolt seat is to be made by heat-fusible materials.