CN2682163Y - Fireproof door lock - Google Patents

Abstract

The utility model relates to a fireproof door lock, comprising a lock seat which is fixed on a fireproof door lock shell and a transmission mechanism which is arranged in the lock seat. The transmission mechanism comprises a locking bolt which can freely swing and form a concave stage part, a baffle plate which blocks the inward retraction of the locking bolt and is provided with a fireproof block, a safety plate which blocks the locking bolt to inward retract into the lock seat when the safety plate is abutted with the side end of the baffle plate, a guide rod which causes the locking bolt to be clamped by the fireproof block when the safety plate is abutted with the side end of the baffle plate, and a shift plate which is provided with the force to guide the locking bolt and the guide rod to move. When the baffle plate is not clamped on the concave stage part, the locking bolt is retracted into the lock seat to open the fireproof door. When the fireproof block is melted by the high temperature, the front end of the baffle plate is clamped on the concave stage part to cause the locking bolt not to retract into the lock seat, and thus the fire proof door is ensured to be locked.

Description

Fireproofing door lock

Technical field

The utility model is about a kind of fireproofing door lock, particularly about a kind of locking bolt of fireproofing door lock and transmission mechanism of safeguard improved, to guarantee the blocking of labeled door.

Background technology

General fireproofing door lock commonly used is as shown in Figure 1, the use of fireproofing door lock 1 is as wanting the unlocking state, be by the squeeze grip 10a that is pressed in the handle skeleton frame 10 that labeled door 2 central authorities are horizontally set with, 10a moves down by squeeze grip, locking bolt 11 in the traction lock housing 3 produces the action of withdrawal, and fireproofing door lock 1 is opened because of the door-lock-release blocking.

The structure of above-mentioned fireproofing door lock 1 is as shown in Figure 2, and for the purpose of observing for convenience, special with fireproofing door lock 1 rotation 90 degree, it is horizontal to be level.Wherein, install one in handle skeleton frame 10 inside respectively and be available for users to the lock housing 3 that squeeze grip 10a that hand presses and connection are equiped with locking bolt 11 downwards, this squeeze grip 10a is locked on two holders 13 of handle skeleton frame 10 bottoms, these holder 13 two side edge respectively are provided with a skewed slot 13a, wear a roller traveller 13b thus, and worn by a shank 13c and to be fixed on the edge of squeeze grip 10a two side, simultaneously, be positioned at bottom, said fixing seat 13 front side and 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 oppress strength, the above-mentioned shank 13c that wears roller traveller 13b during normality holds upper end position at handle skeleton frame 10 with squeeze grip 10a.When the user presses on squeeze grip 10a with hand, then above-mentioned rollers traveller 13b promptly be subjected to this push strength along skewed slot 13a to lower slider, so squeeze grip 10a in handle skeleton frame 10 to bottom offset.

Shown in the broken circle of Fig. 3, lock housing 3 inside that these handle skeleton frame 10 front ends connect are equiped with swinging plate 12, these swinging plate 12 both sides extend to form a drive division 12a and an operand 12b respectively, the end of this drive division 12a is the inner face position that touches at squeeze grip 10a, and this operand 12b then touches in the recess 11a of the locking bolt 11 in being installed in lock housing 3.Therefore, when the user presses squeeze grip 10a with hand, then the drive division 12a of swinging plate 12 is that pressurized is to bottom offset, the operand 12b that makes opposite side is to top offset, the recess 11a that while operand 12b will touch at locking bolt 11, interlock produces anticlockwise swing, constitutes the action of fireproofing door lock 1 unlocking state in the lock housing 3 so locking bolt 11 is just withdrawn.

Lock housing 3 internal structures of above-mentioned fireproofing door lock 1 comprise that one can install the lock 15 of a locking bolt 11 and a safeguard 14 and provide lock 15 bottom parts an affixed lock plate 16 as shown in Figures 2 and 3; The upper end of this lock 15 wears a shank 17, and it is fixing that safeguard 14 and locking bolt 11 are pivoted, and making safeguard 14 and locking bolt 11 is the axle center with this shank 17, is hubbed on swingably in the lock 15, and 17 of this shanks are each sheathed spring clamp 18,19 along locking bolt 11 both sides.

Wherein, spring clamp 18 1 ends hold at lock 15 end faces, and the other end then holds the end at safeguard 14, and the elastic force of borrowing spring clamp 18 to produce acts on the safeguard 14, and making safeguard 14 is to stretch out outside the lock 15 when normality; 19 one ends of spring clamp hold at lock 15 end faces, and the other end holds in the recess 11a of locking bolt 11, and the elastic force that produces by spring clamp 19 acts on the locking bolt 11, and making locking bolt 11 is to stretch out outside the lock 15 when normality.

The safeguard 14 of above-mentioned fireproofing door lock 1 is towards a side of locking bolt 11, be provided with a prominent button 14a, on the bending body 12c that the operand 12b front end that this prominent button 14a can be connected to swinging plate 12 extends to form, this swinging plate 12 is to wear a shank 20 to be hubbed on the lock 15, and swinging plate 12 end faces are urged by the spring clamp 22 that another shank 21 wears, make swinging plate 12 when normality, be downward swing position and make the bending body 12c of its operand 12b be connected to the prominent button 14a of safeguard 14.When labeled door is closed, make safeguard 14 contact and in the lock 15 of withdrawing at doorframe, this safeguard 14 is towards lock 15 inner withdrawal swings, make the prominent button 14a of safeguard 14 break away from the mutual clamping of the bending body 12c position with operand 12b front end, swinging plate 12 is then urged by spring clamp 22 downward elastic force and past lower swing, but the proper clip in the front end position that makes swinging plate 12 operand 12b is in the concave part 11b of locking bolt 11, so locking bolt 11 just is subjected to jam and in the lock 15 of can't swingingly withdrawing backward, prevents to open labeled door 2 so can keep fireproofing door lock 1 when blocking.

Above-mentioned structural fire protection door lock 1 is after long-term the use, when labeled door is closed, door will produce the gap with the position of doorframe, make safeguard 14 and fail to be fully retracted in the lock 15, cause on the bending body 12c of the operand 12b that the prominent button 14a of safeguard 14 1 ends still contacts at swinging plate 12 slightly.Therefore, when swinging plate 12 is subjected to spring clamp 22 to urge to lower swing, can't reach the floor level position, the front end that causes swinging plate 12 operand 12b clip fully causes fireproofing door lock 1 to open in the concave part 11b of locking bolt 11.

Have again, make locking bolt 11 be given a shock strength when bump labeled door 2, the front end of the operand 12b of this swinging plate 12 is the concave part 11b of escape locking bolt 11 therefore, cause swinging plate 12 to live locking bolt 11 by clip, cause locking bolt 11 loosening and be withdrawn into easily in the lock 15, therefore, fireproofing door lock 1 can't be kept the user mode of locking.

Simultaneously, knock destruction when 11 rounds people's malice of locking bolt, when causing this locking bolt 11 to be withdrawn into lock 15, fireproofing door lock 1 can't be kept the user mode of locking equally, will influence the safe handling function of fireproofing door lock.

In addition, the sidewall that above-mentioned fireproofing door lock 1 is positioned at lock 15 wears a fire prevention button column 23, but the fire prevention packing ring 24 that these fire prevention button column 23 sheathed clasps 26 clampings are made of fusible material, and the position that fire prevention button column 23 is located in lock 15 is arranged with an elastic body 25 in addition, one end of this elastic body 25 holds the sidewall at lock 15, and the other end then holds the rearward end 23b that is outstanding shape at fire prevention button column 23.The leading section 23a of this fire prevention button column 23 fire prevention packing ring 24 with the sidewall spacers of lock 15, makes elastic body 25 be being set on the fire prevention button column 23 of compressive state, therefore can produce the strength that advances backward to the rearward end 23b of fire prevention button column 23.When fireproofing door lock 1 was subjected to the invasion and attack generation high temperature of fire roaring flame, the packing ring 24 of then preventing fires was subjected to high temperature immediately and melts, and made fire prevention button column 23 lose the interval of fire prevention packing ring 24, and this fire prevention button column 23 is urged and projection backward by elastic body 25 elastic force just.

Because the rearward end 23b of fire prevention button column 23 stretches in the lock 15, can contact the ora terminalis of locking bolt 11 recess 11a, locking bolt 11 can't be swung backward, make locking bolt 11 can not be withdrawn in the lock 15 whereby, keep fireproofing door lock 1 and be blocking, prevent that labeled door 2 from being opened by mistake by ignorant person, outwards scurry out and hurt sb.'s feelings and fire accident such as prolongs to extending out and flame takes place.

Above-mentioned fireproofing door lock commonly used 1 be subjected to high temperature of fire and make fire prevention button column 23 during 24 fusings of sheathed fire prevention packing ring, the fire prevention packing ring 24 of this fusing is to be sticky colloidal liquid, easily make elastic body 25 attached on the fire prevention button column 23, cause the elastic force of stretching to pusher to reduce, the button column 23 that causes preventing fires can not stretch out the recess 11a that is connected to locking bolt 11, perhaps cause fire prevention button column 23 to stretch out action and delay, therefore prolong the required time of labeled door 2 lockings.

As from the foregoing, because the various shortcoming of fireproofing door lock commonly used, the problem that not only causes fireproofing door lock 1 to open, and its structure closes labeled door in off position the time really, and will prolong the required time of labeled door locking, therefore more will be because of can't keeping certain locking user mode of labeled door, and have a strong impact on the security function of fireproofing door lock, fire safety function that as seen should fireproofing door lock commonly used has the defective in the use and demands urgently improving.

The utility model content

For showing the shortcoming of technology on overcoming, the purpose of this utility model is to provide a kind of fireproofing door lock, can make fireproofing door lock certain clip locking bolt when labeled door is closed, and makes this locking bolt can't start and keep good locking user mode.

Another purpose of the present utility model is to provide a kind of fireproofing door lock, installing one fire blocks in fireproofing door lock, and make these fire blocks when fireproofing door lock is subjected to high temperature melting because of fire, whereby with the locking bolt clip on baffle plate and can't swing, definitely keep the good blocking of fireproofing door lock, prevent the safe handling function that labeled door is opened by mistake to be opened.

For reaching above-mentioned purpose, the lock and one that the utility model provides a kind of fireproofing door lock to comprise an affixed labeled door lock housing is located at the transmission mechanism in this lock, this transmission mechanism comprises the locking bolt that can swing freely and form concave part, can stop the baffle plate that contracts in this locking bolt and have fire blocks, can stop the safeguard that is reduced in this locking bolt in this lock, make this locking bolt be moved by the guide rod of this fire blocks clip and this locking bolt of force-applied guiding and this guide rod when this safeguard contacts the side of this baffle plate when contacting with the side of this baffle plate swinging plate.

This lock is installed on this labeled door lock housing, and this labeled door lock housing is provided with a squeeze grip and one and the door lock of this squeeze grip interlock, and the user can open this door lock by this squeeze grip; When depressing this squeeze grip, can touch the transmission mechanism of this lock.

This safeguard and this baffle plate can be swung and be hubbed on this lock freely, this safeguard can contact with a side of this baffle plate, the fire blocks of this baffle plate are provided in a side of on the kink of this baffle plate, this guide rod is to wear a swinging plate that is used to drive in lock, to the fire blocks that are connected with this baffle plate, make these fire blocks moved by the preceding pushing of this guide rod and with clamping to upper offset; This locking bolt then is contained in this lock swingably, make this guide rod contact these fire blocks and towards the swing of this locking bolt, this baffle plate that connects fire blocks then to lower swing and unlikely clip at this concave part, this locking bolt is withdrawn in this lock and open this labeled door, when these fire blocks are subjected to high temperature melting, this this concave part of baffle plate clip and make this locking bolt can't withdraw in this lock is to guarantee this labeled door of locking.

Fireproofing door lock of the present utility model is improved at the safeguard of fireproofing door lock and the transmission mechanism of locking bolt especially, the lock that will be positioned at this fireproofing door lock is provided with baffle plate within it, one end of this baffle plate connects an elastic body, make baffle plate be subjected to the trend that this elastomeric elastic force stretches and the swing of making progress is arranged, the other end of baffle plate then is connected to formed Access Division, safeguard bottom relatively, and the bottom of this locking bolt contacts the baffle plate that is installed in the lock with formed concave part and contacts and be connected in the lock.

When labeled door is closed, safeguard touches doorframe and withdraws, baffle plate then be subjected to being connected in it end elastomeric elastic force and to top offset, a be not insured end of plate of baffle plate contacts and is connected in the concave part of locking bolt, when this fireproofing door lock is met fire, fire blocks are subjected to high temperature melting, and clip was reached the function that closes labeled door on baffle plate and can't start whereby when locking bolt was closed condition.

Position after this baffle plate is upwards swung just can be with respect to the formed concave part in locking bolt rear end, therefore, when locking bolt will swingingly be withdrawn lock backward, this locking bolt can be subjected to the baffle plate clip and can't move in concave part, so can keep the good locking user mode of fireproofing door lock.

Wherein, this guide rod can be along with the operand clockwise direction swing of swinging plate to top offset, make this guide rod contact these fire blocks and towards the swing of this locking bolt, and the baffle plate that these fire blocks connected is to lower swing, thus, this baffle plate just can clip in the concave part of locking bolt, upwards pushing and in the lock of swingingly withdrawing of the operand that this locking bolt can be subjected to swinging plate can be removed the fireproofing door lock blocking whereby and opens this labeled door.

When fireproofing door lock is subjected to roaring flame when invasion and attack of fire, the fire blocks that this baffle plate is installed are subjected to high temperature immediately and melt, and the guide rod of this swinging plate thereby can't contact the fire blocks that fusing disappears makes baffle plate upwards stretched and displacement by elastomeric elastic force.At this moment, the front end of this baffle plate just can be with respect to the concave part of locking bolt and is given clip, this locking bolt can't swingingly be withdrawn in the lock backward, just can keep fireproofing door lock to be blocking thus, so as to preventing that labeled door from opened by mistake by the people opening and the accident that the personnel that cause injure and fire spreads takes place everywhere.

Description of drawings

Fig. 1 is the schematic appearance of the fireproofing door lock of labeled door installing;

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

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

Fig. 4 is the structure decomposition map of fireproofing door lock of the present utility model;

Fig. 5 is the local structure exploded view in the lock of the present utility model;

Fig. 6 shows locking bolt and the baffle plate action schematic diagram before the fire blocks of fireproofing door lock of the present utility model do not melt; And

Fig. 7 shows locking bolt and the baffle plate action schematic diagram after the fire blocks of fireproofing door lock of the present utility model melt.

The specific embodiment

Embodiment

Fig. 4 to Fig. 7 draws according to fireproofing door lock embodiment of the present utility model.As shown in the figure, fireproofing door lock of the present utility model comprises that mainly a lock 33 and that is fixed in labeled door lock housing 3 is located at the transmission mechanism 29 in this lock 33, and this transmission mechanism 29 comprises locking bolt 34, baffle plate 36, safeguard 35, guide rod 43 and swinging plate 39.

Wherein, the embodiment of fireproofing door lock of the present utility model is that this fireproofing door lock is installed in the common labeled door, existing labeled door is applicable object, the structure of its labeled door does not change, so for simplicity and make feature of the present utility model and structure more clear understandable, only show the structure that directly correlates with the utility model in the labeled door in the accompanying drawings, all the other partly then slightly remove, and identical or similar assembly is with identical symbolic representation.

This lock housing 3 is to be installed on this labeled door 2, and is provided with the door lock of a squeeze grip 10a and and this squeeze grip 10a interlock on this lock housing 3, and the user can open this door lock by this squeeze grip 10a; This lock 33 connects with this lock housing 3 and establishes, also an available driving mechanism touches this squeeze grip 10a, being pivoted with one can swing freely safeguard 35, and can swing freely a baffle plate 36 and a guide rod 43, this safeguard 35 can contact with a side (being first end 36b) of this baffle plate 36, and on a kink 36a of this baffle plate 36, connect fire blocks 38, but 43 clampings of this guide rod are to the fire blocks 38 that are connected with this baffle plate 36, make these fire blocks 38 moved by these guide rod 43 preceding pushings and to upper offset; This locking bolt 34 is contained in this lock 33 swingably, is provided with the concave part 34b that a recess 34a and who is arranged on these locking bolt 34 rear ends can be 36 clips of this baffle plate.

These lock 33 bottoms connect and are located on the lock housing seat board 31, and this locking bolt 34 is hubbed on wherein in the mode that can swing freely, the safeguard 35 of this lock 33 can be swung and be hubbed on freely in this lock 33, and the bottom of this safeguard 35 forms the Access Division 35a of a standing shape; This baffle plate 36 also is hubbed in this lock 33 swingably, and a side edge of this baffle plate 36 is to contact on the 35a of the Access Division of this safeguard 35, one end of one elastic body 37 is connected this baffle plate 36, the other end of this elastic body 37 then is connected this lock 33 end face positions, makes this baffle plate 36 be subjected to strength that this elastic body 37 stretches and the upwards biasing displacement of swing.

This lock 33 is to wear a shank 44, this locking bolt 34 is articulated respectively with this safeguard 35, this shank 44 also is set between the safeguard 35 and locking bolt 34 that is worn with one first elastic parts 41, and is set between this locking bolt 34 and this lock 33 wall edge with one second elastic parts 42.One end of this first elastic parts 41 holds on the protruded stigma 35b that is located in these safeguard 35 bottoms, the other end then holds the end face at this lock 33, one end of this second elastic parts 42 holds in the recess 34a of this locking bolt 34 rear ends, the other end then holds the end face at this lock 33, elastic force by this first elastic parts 41 and 42 generations of second elastic parts makes the locking bolt 34 that is held stretch out lock 33 with safeguard 35.

The protruded stigma 35b that these safeguard 35 bottoms wear also is located in the arcuation slotted eye 33a on these lock 33 wall edge, swing in this lock 33 of withdrawing freely so as to guiding this safeguard 35, and the first end 36b that this Access Division 35a can contact at baffle plate 36, and maintain offset position to lower swing.

This lock 33 also is provided with a swinging plate that is used to drive 39, this swinging plate 39 is to be hubbed on this lock 33 by this guide rod 43, the both sides of this swinging plate 39 extend to form a drive division 39a and an operand 39b respectively, the end of this drive division 39a is to touch at this squeeze grip 10a inner face position, and this operand 39b then touches the recess 34a of the locking bolt 34 in being installed in this lock housing 30.Then be provided with one first pivot seat 39c at the central end face position of this swinging plate 39, this first pivot seat 39c can penetrate to be hubbed on this lock 33 for a shank 46, make this swinging plate 39 be the axle center along this shank 46, swing in this lock 33, the operand 39b end face position that is positioned at this swinging plate 39 again is provided with one second pivot seat 39d, can penetrate this guide rod 43 and slide up and down to connect freely to be located on the lock 33.

Wherein, this second pivot seat 39d is provided with a horizontal elliptical aperture 39e, penetrates for this guide rod 43, and 33 of this locks are provided with a perpendicular arcuation elliptical aperture 33b who puts and establish this guide rod 43 to connect.

As shown in Figure 6, when the user presses this squeeze grip 10a with hand, the drive division 39a of this swinging plate 39 is that pressurized is to bottom offset, the operand 39b that makes opposite side is to top offset, so the guide rod 43 that this operand 39b end face second pivot seat 39d wears i.e. upwards skew, and then guide rod 43 presses fire blocks 38 and the baffle plate 36 that makes of interlock is setovered to lower swing, make these swinging plate 39 front ends can be connected within the recess 34a of this locking bolt 34, then can the be struck operand 39b of plate 39 of the recess 34a of this locking bolt 34 stretches into and clamping.Therefore, the front end of this baffle plate 36 is offset down position and the unlikely clip concave part 34b at this locking bolt 34, and can make fireproofing door lock unlocking state and open this labeled door this moment.

When the user discharges this squeeze grip 10a, make this locking bolt 34 be subjected to this swinging plate 39 upwards swinging strength urge and swingingly stretch out outside this lock 33.Because the concave part 34b of this locking bolt 34 is arranged on the rear end of this locking bolt 34, when this lock 33 is stretched out in these locking bolt 34 swings, this concave part 34b is by 36 clips of this baffle plate, in this lock 33 of the withdrawal that can't swing backward, so form the good blocking function of fireproofing door lock, therefore can avoid any because of the beat situation that can't reach blocking that gets loose of this locking bolt 34 takes place, keeping fireproofing door lock is blocking.

Also can wear a shank 45 in this lock 33, so that this baffle plate 36 is hubbed in this lock 33 swingably, it is the Access Division 35a that contacts in this safeguard 35 bottoms that these baffle plate 36 1 sides are formed with first end 36b, then form the second end 36c with respect to these baffle plate 36 opposite sides, this the second end 36c is provided with a circular hole 36d and can be connected for an end of an elastic body 37, and the other end of this elastic body 37 then is connected the circular hole 33c of these lock 33 end faces.

Wherein, this elastic body 37 can for example be a coil tension spring, and the elastic force that produces by this elastic body 37 makes this baffle plate 36 have the upwards trend of swing.

Have again, the kink 36a that is positioned at the position, rear of this baffle plate 36 the second end 36c can form vertical, so that these fire blocks 38 are connected its upstanding wall edge, 38 of these fire blocks are to be made of the material that easily melted by high temperature, when being subjected to this guide rod 43, these fire blocks 38 touch and jam, this baffle plate 36 will offset downward, the front end that makes this baffle plate 36 can clip at the concave part 34b of this locking bolt 34, therefore fireproofing door lock can be depressed squeeze grip 10a unlocking state by the user, so as to opening labeled door.

As shown in Figure 7, when this fireproofing door lock experience fire is subjected to the roaring flame invasion and attack, then the fire blocks 38 of these baffle plate 36 connections are subjected to high temperature immediately and melt, so this baffle plate 36 presses strength losing fire blocks 38 suffered guide rods 43, this baffle plate 36 just be subjected to this elastic body 37 upwards stretch strength and up the swing, the front end that makes this baffle plate 36 is because of upwards skew just can be with respect to the concave part 34b of this locking bolt 34, so just being subjected to the holding of this baffle plate 36, can't swing backward this locking bolt 34 in this lock 33 of withdrawal, at this moment, even the user depresses squeeze grip 10a, can not remove the blocking of fireproofing door lock, labeled door can't be unlocked, prevent that labeled door from being opened by mistake and open and cause flame outwards to be scurried burning to expand prolonging everywhere, also can avoid roaring flame to go out injuring the facts of the personnel's life security of opening the door to take place.

When above-mentioned fireproofing door lock is closed at labeled door 2, safeguard 35 in this lock 33 is withdrawn because of contacting doorframe, in the upwards swing process of safeguard 35 withdrawals, the Access Division 35a of these safeguard 35 bottoms promptly breaks away from the position that touches mutually with the first end 36b of this baffle plate 36, so this baffle plate 36 just is subjected to stretching strength that this elastic body 37 makes progress and up swing, the front end that makes this baffle plate 36 is just with respect to the position of the concave part 34b of this locking bolt 34, so this locking bolt 34 can't swingingly be withdrawn in this lock 33 because of the clip that this concave part 34b is subjected to baffle plate 36, the action of the concave part 34b of this locking bolt 34 and this baffle plate 36 mutual clips does not have the possibility of any loosening slippage fully, so the fireproofing door lock block action that forms is very definite, does not have any situation that can't keep the labeled door blocking.

Therefore, when this guide rod 43 contacts these fire blocks 38 and during towards 34 swings of this locking bolt, the baffle plate 36 that connects these fire blocks 38 will be to lower swing and in the concave part 34b of unlikely clip at this locking bolt 34, make in this lock 33 of this locking bolt 34 withdrawals and open this labeled door 2, when these fire blocks 38 are subjected to high temperature melting, this baffle plate 36 clips this concave part 34b and make this locking bolt 34 can't withdraw in this lock 33 is to guarantee this labeled door 2 of locking.

In sum, because fireproofing door lock of the present utility model can be opened labeled door really, and close labeled door in off position the time really by above-mentioned structure, and will shorten the required time of labeled door locking, and therefore can solve the various shortcoming of prior art, guarantee that labeled door keeps good locking user mode, and when taking place, fire prevents really that labeled door from being opened by mistake, can more effectively hinder certainly fire expansion and prolong burning,, bring into play the function of use of good fire safety to isolate the disaster area.

Claims (21)

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

One lock is fixed in the lock housing of this labeled door; And

One transmission mechanism, be located in this lock, has the locking bolt that to swing freely and form concave part, can stop the baffle plate that contracts in this locking bolt and have fire blocks, can stop the safeguard that is reduced in this locking bolt in this lock when contacting with the side of this baffle plate, make this locking bolt when this safeguard contacts the side of this baffle plate by the swinging plate of the guide rod of this fire blocks clip and this locking bolt of force-applied guiding and the motion of this guide rod, so that clip is not in this concave part at this baffle plate, make this locking bolt withdraw in this lock, can open this labeled door, when these fire blocks are subjected to high temperature melting, this concave part of front end clip of this baffle plate then, make this locking bolt can't withdraw in this lock, to guarantee this labeled door of locking.

2. fireproofing door lock as claimed in claim 1 is characterized in that, this lock is equipped with a shank with this baffle plate that is pivoted.

3. fireproofing door lock as claimed in claim 1 is characterized in that, the bottom of this lock is to connect to be located on the lock housing seat board.

4. fireproofing door lock as claimed in claim 1 is characterized in that, this lock is formed with a perpendicular elliptical aperture of putting.

5. fireproofing door lock as claimed in claim 1 is characterized in that this concave part is formed in the position at this locking bolt back side.

6. fireproofing door lock as claimed in claim 1 is characterized in that, this position, locking bolt back side also forms a recess.

7. fireproofing door lock as claimed in claim 1 is characterized in that, these swinging plate both sides respectively are provided with a drive division and an operand, and this locking bolt is subjected to the operand pushing of this swinging plate and stretches in this lock.

8. fireproofing door lock as claimed in claim 7 is characterized in that, the drive division of this swinging plate is to stretch into the recess of this locking bolt with clamping each other.

9. fireproofing door lock as claimed in claim 7 is characterized in that, the central end face of this swinging plate is provided with one first pivot seat, can be hubbed in this lock for wearing a shank.

10. fireproofing door lock as claimed in claim 7 is characterized in that, the operand end face of this swinging plate is provided with one second pivot seat, can slidably connect from for penetrating this guide rod to be located in this lock with going into.

11. fireproofing door lock as claimed in claim 10 is characterized in that, this second pivot seat forms a horizontal elliptical aperture.

12. fireproofing door lock as claimed in claim 10 is characterized in that, this guide rod is to be hubbed in the elliptical aperture of this lock.

13. fireproofing door lock as claimed in claim 1 is characterized in that, a protruded stigma is located in the slotted eye of the bottom of this safeguard and this lock wall edge, and bootable this safeguard is withdrawn in this lock.

14. fireproofing door lock as claimed in claim 13 is characterized in that, the bottom of this safeguard is formed with an outstanding Access Division.

15. fireproofing door lock as claimed in claim 13 is characterized in that, the bottom of this protruded stigma is formed with an Access Division.

16. fireproofing door lock as claimed in claim 1, it is characterized in that, these baffle plate both sides respectively form first end and the second end, this first end is to contact Access Division at this safeguard to keep the offset position to lower swing, and this second end is connected with an elastomeric end, this elastomeric other end then connects this lock top, makes this baffle plate be subjected to this elastomeric stretching strength and upwards swing and biasing displacement.

17. fireproofing door lock as claimed in claim 16 is characterized in that, the kink of this baffle plate is uprightly to be formed on its second end, connects this fire blocks with the upstanding wall edge at this kink.

18. fireproofing door lock as claimed in claim 1 is characterized in that, but the front end of this baffle plate is a clip at the concave part of this locking bolt so that this locking bolt is hubbed on this lock.

19. fireproofing door lock as claimed in claim 1 is characterized in that, these fire blocks are to be flat platy structure.

20. fireproofing door lock as claimed in claim 1 is characterized in that, these fire blocks are that the material that melts by being subjected to high temperature constitutes.

21. fireproofing door lock as claimed in claim 1, it is characterized in that, this guide rod is to contact these fire blocks and towards the swing of this locking bolt, the baffle plate that these fire blocks connected is to lower swing, so that the unlikely clip of this baffle plate is in the concave part of this locking bolt, make the upwards pushing and in this lock of swingingly withdrawing of operand that this locking bolt is subjected to this swinging plate whereby, remove the fireproofing door lock blocking and open this labeled door.

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