CN101021116B - Safety push-rod lock - Google Patents

Safety push-rod lock Download PDF

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Publication number
CN101021116B
CN101021116B CN200710072922A CN200710072922A CN101021116B CN 101021116 B CN101021116 B CN 101021116B CN 200710072922 A CN200710072922 A CN 200710072922A CN 200710072922 A CN200710072922 A CN 200710072922A CN 101021116 B CN101021116 B CN 101021116B
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China
Prior art keywords
lock
lock pin
lag
pin
rotating disk
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Application number
CN200710072922A
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Chinese (zh)
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CN101021116A (en
Inventor
杨军
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Fangda Zhiyuan Technology Co.,Ltd.
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China Fangda Group Co Ltd
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Priority to CN200710072922A priority Critical patent/CN101021116B/en
Publication of CN101021116A publication Critical patent/CN101021116A/en
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Abstract

The present invention discloses a safety push bar lock applicable to emergency exit of cinema and theatre, etc. It is characterized by that said safety push bar lock includes a locking bar and a locking pin set on one end of said locking bar. On said locking pin a spacing pin is set and a spacing mechanism is movable-covered, and said spacing mechanism includes guide frame cover-mounted on the locking pin, switching rotating disk hinged on said guide frame and shifting pin connected with door frame. Said invention also provides the working principle of said safety push bar lock and its concrete operation method.

Description

Safety push-rod lock
Technical field
The present invention relates to push rod lock, relate in particular to a kind of a kind of push rod lock that is applicable to place of public amusement life-saving emergency doors such as subway shield door, cinema, Conference Hall.
Background technology
Push rod lock on the existing life-saving emergency door that is used for places of public amusement such as subway shield door, cinema or Conference Hall, it comprises lock pin and locking bar, the stretching into and shrink of the relative lockhole of telescopic band pendulum lock pin by locking bar, thus realize the locking and the unlatching of escape door.Often when opening escape door; because lock pin shrinks and not put in place fully, is just pushed open by force, there is not the lock pin that contraction puts in place usually can scratch threshold or ground; because the effect of threshold or ground drag, also can influence the speed of opening the door sometimes and bring potential safety hazard.
Chinese patent-" a kind of push rod lock " (ZL 200520057537.8) disclose a kind of subway shield door that is used for, push rod lock on the life-saving emergency door of place of public amusement such as cinema or Conference Hall, as shown in Figure 7 and Figure 8, this push rod lock mainly comprises: can be driven and the lock pin with reducing shaft part 06 of descend (contraction unlocks) by push rod, with this lock pin to the frizzen with reducing shaft part 01 that be arranged in parallel, limit locking pieces one 03 and the limit locking pieces two 05 of also parallel up and down kink on lock pin 06 and frizzen 01, laterally act on the spring of two locking plates respectively, be placed in the back-moving spring 92 on lock pin and the frizzen respectively, 91.This covering device is to realize folding like this, Figure 7 shows that lock pin 06 drives decline (unlocking) and is retracted to the permanent position at push rod, and promptly all limited locking plate 1 of lock pin 06 and frizzen 01 blocks, and resilience can not make progress; When doorframe collision frizzen 01 and it is moved down and drive limit locking pieces 1 and move right, thereby make the restriction that limit locking pieces 1 is removed lock pin 06, under the effect of the back-moving spring 92 of lock pin 06, rise and sealed escape door.But, begin to remove sealed from latched position shown in Figure 8, promptly pull down pendulum lock pin 06, the frizzen 01 of this moment can move up under the effect of its back-moving spring 91, the restriction that is not moved up, after not needing lock pin 06 contraction to put in place, frizzen 01 just can move up.So,, just can push the door open as long as lock pin 06 has just withdrawed from lockhole.Yet this state opens the door, and lock pin usually can scratch threshold or ground, or the influence speed of opening the door, and makes the reliability of escape door folding reduce.In addition, the displacement up and down by lock pin and frizzen drives two limit locking pieces and laterally moves, member distortion easy to wear, and intensity difference, life-span are low, finally influence the reliability of escape door folding.
Summary of the invention
The present invention will solve the existing relatively poor technical problem of emergent door lock functional reliability, provides a kind of and only shrinks the safety push-rod lock that door could be pushed open under the situation about putting in place fully at lock pin.
For addressing the above problem, the technical solution used in the present invention is a kind of safety push-rod lock of structure, and it comprises locking bar, is located at the lock pin of this locking bar one end, and this lock pin is provided with a spacer pin and kink one position-limit mechanism.This position-limit mechanism comprises: be placed in leading truck on the lock pin, be articulated in the switch rotating disk on this leading truck, the finger that is connected with doorframe.Described switch rotating disk is provided with the first relative U-lag and second U-lag, and when the switch rotating disk forwards certain position to, described spacer pin can pass in and out first U-lag, and described finger is stuck in second U-lag, and together rotates with the switch rotating disk.
Preferred embodiment of the present invention, described lock pin is following lock pin, the other end of locking bar can also be provided with a dead bolt that cooperates with lockhole on the doorframe.
Wherein, can be provided with a roller on the described spacer pin.
The outer rim of two U-lags, one side is circular-arc on the described switch rotating disk.
A side circular-arc on the described switch rotating disk is connected with described leading truck by first elastic component.
Described locking bar is provided with second elastic component of axial action in described lock pin.
The present invention is owing to be provided with position-limit mechanism, have only when lock pin and shrink fully when putting in place, promptly spacer pin breaks away from first U-lag, and the switch rotating disk just can be rotated in place around its rotating shaft under the stirring of the finger that is connected with door, to lock complete opening, meanwhile emergent just can push open; If it is not in place that lock pin shrinks, spacer pin still is stuck in first U-lag of switch rotating disk, and finger just can not the toggle switch dial rotation, and escape door just can not promote, thereby avoided shrinking the situation on scratch threshold when incomplete or ground effectively, or be stuck and cause potential safety hazard because of lock pin; When lock pin is in contraction state, the spacer pin frame has promptly limited lock pin and has moved down on the circular arc limit of switch rotating disk, guarantees that lock pin is hidden in the body; Because the setting of crank device and push rod when push rod lock is opened in door, without key, is opened easily, the personnel that are beneficial to withdraw rapidly; Owing to established available key operated lock body, need use key when opening, thereby can prevent that unrelated person from entering again from the outside at the locking bar opposite side.The invention enables the functional reliability of emergent door lock to strengthen greatly, and simple in structure, intensity is high, the life-span is long.
Description of drawings
Fig. 1 is the structural representation of preferred embodiment of the present invention;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the schematic diagram of preferred embodiment lock pin elongation state of the present invention;
Fig. 4 is the schematic diagram of the complete contraction state of preferred embodiment lock pin of the present invention;
Fig. 5 is the structural representation of switch rotating disk in the preferred embodiment of the present invention;
Fig. 6 is the upward view of Fig. 5;
Fig. 7 is the schematic diagram of prior art lock pin opening;
Fig. 8 is the schematic diagram of prior art lock pin locked state.
The specific embodiment
Fig. 1, Fig. 2 illustrate the basic structure of preferred embodiment of the present invention, and described safety push-rod lock is following detent configuration, and it comprises locking bar 104, is located at the lock pin 101 of this locking bar lower end, and lock pin is provided with the spacer pin 106 of a band roller.This lock pin is set in the position-limit mechanism that is installed on the lower door frame, this position-limit mechanism comprises: be placed in leading truck 202 on the lock pin 101, be installed in finger 105 on the lower door frame, be articulated in switch rotating disk 102 on this leading truck, the vertical lock pin axis of this shaft axis (seeing also Fig. 5 and Fig. 6) by a rotating shaft 201.Be provided with first U-lag 108 and second U-lag 109 on switch rotating disk 102 relatively, the outer rim on two U-lag right sides is circular-arc on this switch rotating disk, and the right side of switch rotating disk is connected with described leading truck 202 by first spring 103.When the opening that forwards first U-lag 108 to around its rotating shaft 201 when the switch rotating disk is aimed at spacer pin 106 positions on the lock pin, this spacer pin just can move up and down in company with lock pin and pass in and out first U-lag 108, and finger 105 activities that are connected with lower door frame are stuck in second U-lag, and together rotate (seeing also Fig. 3 and Fig. 4) with switch rotating disk 102.The hypomere of described locking bar 104 is with and can makes second spring 107 of lock pin 101 to bottom offset., be provided with one and can order about the push rod 112 that locking bar shrinks (release) on the locking bar 104 of indoor or track one side at escape door, this push rod is to be connected with the middle part of locking bar by an eccentric stiffener 113.With the locking bar 104 of push rod 112 relative sides on also be provided with the lock body 110 of available key operated (release) lock pin 101.Because push rod 112 releases and push rod 112 releases can be adopted existing structure, just seldom state at this.Because present embodiment lock pin 101 is to adopt lock pin form down, is provided with a upper lock tongue 111 in locking bar 104 upper ends.This dead bolt upper right corner is hinged on the fixing leading truck of upper end, and the upper end of locking bar is set in this leading truck, and this section locking bar is provided with one and is set on and stirs pin 203 in the rectangular groove in the dead bolt upper left corner.Certainly as required, also this structure can be used for the lock pin form.
As shown in Figure 3, when lock pin 101 under the effect of the self gravitation and second spring 107, descend to insert in the lockhole of doorframe, door is by locking.At this moment, spacer pin 106 on the lock pin 101 and finger 105 are stuck in first U-lag 108 and second U-lag 109 of switch rotating disk 102.When people promote push rod 112 or rotational lock 110 and order about lock pin 101 and shrink (rising release), spacer pin 106 is in company with moving up, deviate from first U-lag 108 up to spacer pin 106, lock pin 101 shrinks and puts in place, at this moment, pushing away escape door could drive the finger 105 toggle switch rotating disks 102 that are arranged in second U-lag 109 and rotate around its 201 inverse times of rotating shaft, spacer pin 106 just in time frame on the circular arc limit of switch rotating disk 102, this just rises lock pin and puts in place, to lock complete opening, first spring 103 can be in metastable state (as shown in Figure 4) by the maintained switch rotating disk, upper lock tongue 111 with the hour locking lever upper end rotates around its up time under the stirring that stirs pin 203, also breaks away from locking (consulting Fig. 1).Promptly limited lock pin and moved down, guaranteed that lock pin is hidden in the body.In above-mentioned releasing process, have only after the lock pin rising puts in place, pushing away escape door just pushes away movingly, not so, spacer pin 106 is stuck in first U-lag 108, and the finger 105 that is connected with door can not make switch rotating disk 102 rotate, and emergent does not also just open, thereby avoided effectively because of lock pin shrinks scratch threshold or ground when incomplete, or be stuck and cause potential safety hazard.
As shown in Figure 4, push rod lock is in opening, when people close escape door, finger 105 drives switch rotating disk 102 up times and rotates, when arriving certain position, spacer pin 106 is over against first U-lag 108 of switch rotating disk, lock pin 101 just can slip into the lockhole interior (as shown in Figure 3) on the lower door frame downwards, upper lock tongue 111 with the hour locking lever upper end rotates around its inverse time under the stirring that stirs pin 203 simultaneously, and the lower right corner of upper lock tongue stretch into the next door doorframe locked groove in (consulting Fig. 1), at this moment, escape door is by locking.
Primary structure intensity height of the present invention, long service life, safe and reliable, and most of member is hidden in the Door leaf frame, do not take up room.Portion must use key operatedly outdoors, can prevent that unrelated person from entering, and opposite side can be easy to open by the pushing push rod, is convenient in emergency circumstances escape and evacuating personnel.So the present invention can be widely used as in the life-saving emergency door of places of public amusement such as subway shield door, cinema, Conference Hall.

Claims (8)

1. safety push-rod lock, comprise locking bar (104), be located at the lock pin (101) of this locking bar one end, it is characterized in that, described lock pin (101) is provided with a spacer pin (106) and a cover position-limit mechanism, and this position-limit mechanism comprises: be placed in leading truck (202) on the described lock pin, be articulated in the switch rotating disk (102) on this leading truck, the finger (105) that is connected with doorframe; Described switch rotating disk is provided with relative first U-lag (108) and second U-lag (109), when the switch rotating disk forwards certain position to, described spacer pin (106) can pass in and out first U-lag (108), described finger (105) is stuck in second U-lag, and together rotates with switch rotating disk (102).
2. safety push-rod lock according to claim 1 is characterized in that, described spacer pin (106) is provided with a roller.
3. safety push-rod lock according to claim 1, it is characterized in that the outer rim of the same side of last first U-lag of described switch rotating disk (102) (108) and second U-lag (109) is circular-arc and the outer rim of other the same side of first U-lag (108) and second U-lag (109) is a straight flange.
4. safety push-rod lock according to claim 3 is characterized in that, described switch rotating disk (102) is gone up a circular-arc side and is connected with described leading truck (202) by first elastic component (103).
5. safety push-rod lock according to claim 1 and 2 is characterized in that, described locking bar (104) is provided with second elastic component (107) of axial action in described lock pin (101).
6. safety push-rod lock according to claim 1 is characterized in that, described locking bar (104) connects a push rod (112) by an eccentric stiffener (113).
7. safety push-rod lock according to claim 6 is characterized in that, described locking bar (104) is provided with lock body (110) with key operated described lock pin (101) with respect to the opposite side of push rod (112).
8. safety push-rod lock according to claim 1 is characterized in that, described lock pin (101) adopts lock pin form down, and described locking bar (104) other end is provided with a upper lock tongue (111).
CN200710072922A 2007-01-09 2007-01-09 Safety push-rod lock Active CN101021116B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200710072922A CN101021116B (en) 2007-01-09 2007-01-09 Safety push-rod lock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200710072922A CN101021116B (en) 2007-01-09 2007-01-09 Safety push-rod lock

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CN101021116A CN101021116A (en) 2007-08-22
CN101021116B true CN101021116B (en) 2010-05-26

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102444331B (en) * 2010-12-13 2013-10-23 上海嘉成轨道交通安全保障系统有限公司 Safety emergency door lock of emergency door of rail traffic platform shielding door
CN102720409B (en) * 2012-02-10 2016-12-14 江苏城铁电气设备有限公司 Safety door locking device and apply its safety door
CN103883172B (en) * 2014-02-21 2016-01-20 深圳市方大自动化系统有限公司 A kind of portal crane lock of safety door for subway station
CN104652999B (en) * 2015-02-11 2016-04-27 胡海明 Spacing internal door safety lock
CN104763244B (en) * 2015-02-13 2018-07-06 合肥多泰客自动化科技有限公司 A kind of flat-pushing door lock
CN106409183B (en) * 2016-11-23 2022-07-26 深圳创思特光电科技有限公司 Automatic lock for splicing LED lamp boxes
CN113914729A (en) * 2021-10-21 2022-01-11 刘雄心 Grooved pulley lock and opening and closing method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2109427U (en) * 1991-12-10 1992-07-08 张健石 Theft-proof door lock
US5527074A (en) * 1994-10-20 1996-06-18 Yeh; Wen Tien Fire protection door lock having a heat sensitive safety device
CN2744807Y (en) * 2004-06-22 2005-12-07 方大集团股份有限公司 Safety emergency door with hidden push-rod lock
CN2780933Y (en) * 2005-04-19 2006-05-17 方大集团股份有限公司 Push-bar lock
EP1681413A2 (en) * 2005-01-13 2006-07-19 CISA S.p.A. Selvage for secondary wing of fire doors

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2109427U (en) * 1991-12-10 1992-07-08 张健石 Theft-proof door lock
US5527074A (en) * 1994-10-20 1996-06-18 Yeh; Wen Tien Fire protection door lock having a heat sensitive safety device
CN2744807Y (en) * 2004-06-22 2005-12-07 方大集团股份有限公司 Safety emergency door with hidden push-rod lock
EP1681413A2 (en) * 2005-01-13 2006-07-19 CISA S.p.A. Selvage for secondary wing of fire doors
CN2780933Y (en) * 2005-04-19 2006-05-17 方大集团股份有限公司 Push-bar lock

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Effective date of registration: 20101104

Address after: 518057 Guangdong city of Shenzhen province Nanshan District Xili, Longjing Fangda

Patentee after: Shenzhen Fangda Automation System Co., Ltd.

Address before: 518000 Guangdong city of Shenzhen province Nanshan District Xili, Longjing Fangda

Patentee before: Fangda Group Co., Ltd.

CP03 Change of name, title or address

Address after: 518000 Guangdong 5 high tech Industrial Park, Shenzhen, Nanshan District, South China Science and technology building, twelve South Road.

Patentee after: Fang Dazhi Chuang Technology Co., Ltd.

Address before: 518057 Jingfang City, Xililong, Nanshan District, Shenzhen City, Guangdong Province

Patentee before: Shenzhen Fangda Automation System Co., Ltd.

CP03 Change of name, title or address
CP01 Change in the name or title of a patent holder

Address after: 518000 Guangdong 5 high tech Industrial Park, Shenzhen, Nanshan District, South China Science and technology building, twelve South Road.

Patentee after: Fangda Zhiyuan Technology Co.,Ltd.

Address before: 518000 Guangdong 5 high tech Industrial Park, Shenzhen, Nanshan District, South China Science and technology building, twelve South Road.

Patentee before: FANGDA ZHICHUANG TECHNOLOGY Co.,Ltd.

CP01 Change in the name or title of a patent holder