CN2780933Y

CN2780933Y - Push-bar lock

Info

Publication number: CN2780933Y
Application number: CN 200520057537
Authority: CN
Inventors: 杨红岩; 杨占良
Original assignee: China Fangda Group Co Ltd
Current assignee: Shenzhen Fangda Automation System Co., Ltd.
Priority date: 2005-04-19
Filing date: 2005-04-19
Publication date: 2006-05-17
Anticipated expiration: 2015-04-19

Abstract

The utility model relates to a push-bar lock, which comprises a locking rod and a locking pin which is arranged at the end part of the locking rod. The utility model is characterized in that the locking pin is provided with a triggering mechanism; the triggering mechanism comprises a triggering rod which is in parallel with the axial direction of the locking pin, and a limiting locking sheet 2 which connects the locking pin and the triggering rod; the limiting locking sheet 2 is provided with a through hole 1 and a through hole 2; the locking pin is provided with a tapered part 1; the triggering rod is provided with a clamping groove 2; the through hole 1 and the through hole 2 of the limiting locking sheet 2 are respectively sheathed on the tapered part 1 of the locking pin and the clamping groove 2 of the triggering rod; when the locking pin is shrunk, the tapered part 1 pushes the limiting locking sheet 2 to transversely move by the through hole 1. Until the locking pin is sufficiently shrunk, and the limiting locking sheet 2 is disengaged from the clamping groove 2, the triggering rod can axially slide to the target position, so that the lock is completely opened, and accordingly, door sill or ground surface scratch when the locking pin is insufficiently shrunk can be prevented.

Description

A kind of push rod lock

Technical field

The utility model relates to a kind of push rod lock, mainly is applicable to the escape that use under the case of emergency of places of public amusement such as subway shield door, cinema, Conference Hall.

Background technology

The push rod lock of prior art, on the escape that use under the case of emergency that it is used in places of public amusement such as subway shield door and cinema and Conference Hall, this push rod lock comprises lock pin and locking bar, telescopic band pendulum lock pin by locking bar flexible, thereby realize locking and unlatching, because when opening escape door, lock pin shrinks sometimes and is incomplete, put up with anxious door this moment by force and open, not having to shrink the lock pin that puts in place will scratch threshold or ground.Be installed in the push rod lock of escape door in addition, in order to ensure safety, should meet the following conditions: when opening internally, without key, open easily, the personnel that are beneficial to withdraw rapidly; When opening, preferably need to use key, prevent that unrelated person from entering from the outside.

The utility model content

The technical problems to be solved in the utility model is, deficiency at above-mentioned prior art existence, a kind of push rod lock is provided, and this push rod lock only shrinks completely under the situation at lock pin opens door, thereby can avoid lock pin to shrink scratch threshold or ground when incomplete, further the technical problem that will solve is, be the emergency escape function of guaranteeing that escape door is special, when push rod lock mounted thereto is opened internally, without key, open easily, the personnel that are beneficial to withdraw rapidly; When opening, preferably need to use key, prevent that unrelated person from entering from the outside.

The technical solution adopted in the utility model is, a kind of push rod lock, comprise locking bar and the lock pin that is located at described locking bar end, it is characterized in that, on described lock pin, be provided with trigger mechanism, described trigger mechanism comprise with described lock pin to frizzen that be arranged in parallel and the limit locking pieces two that is connected lock pin and frizzen, on described limit locking pieces two, be provided with through hole one and through hole two, on described lock pin, be provided with tapered portion one, be provided with draw-in groove two on described frizzen, the through hole one of limit locking pieces two and through hole two are enclosed within respectively on the draw-in groove two of the tapered portion one of lock pin and frizzen; When described lock pin shrank, tapered portion one promoted limit locking pieces two by through hole one and laterally moves, and shrinks up to lock pin and puts in place, and limit locking pieces two breaks away from draw-in groove two, and frizzen just can endwisely slip and put in place, will lock complete opening.

Above-mentioned push rod lock comprises limit locking pieces one, is provided with through hole one and through hole two on described limit locking pieces one, is provided with draw-in groove one on described lock pin, is provided with tapered portion two on described frizzen; At described lock pin contraction state, the through hole one of limit locking pieces one and through hole two are enclosed within respectively on the tapered portion two of the draw-in groove one of lock pin and frizzen, and the restriction lock pin moves axially; When described frizzen shrank, tapered portion two promoted limit locking pieces one by through hole two and laterally moves, and breaks away from draw-in groove one up to limit locking pieces one, and lock pin just can endwisely slip.

Above-mentioned push rod lock can be provided with the elastic component that laterally acts on described limit locking pieces; Can be provided with the elastic component of axial action in described lock pin; Can be provided with the elastic component of axial action in described frizzen.Described elastic component is generally spring, also can be that other have the elastic component with the spring identity function.

Above-mentioned push rod lock is provided with eccentric and push rod on described locking bar, promote push rod, and lock pin shrinks under the effect of eccentric.

Above-mentioned push rod lock is provided with key operated lock body at the opposite side of described locking bar with respect to push rod.

Above-mentioned push rod lock, described lock pin are last lock pin, also comprise the following lock pin that is located at the locking bar other end.

Compared with prior art, the utility model push rod lock is because the setting of trigger mechanism, have only when lock pin and shrink fully when putting in place, limit locking pieces two breaks away from draw-in grooves two, but frizzen just axial shrinkage put in place, will lock complete opening, otherwise, not in place as the lock pin contraction, then limit locking pieces two is arranged in draw-in groove two, and frizzen also just can not shrink and put in place, also just can not the lock complete opening, thus can avoid lock pin to shrink scratch threshold or ground when incomplete; Because the setting of limit locking pieces one, at the lock pin contraction state, limit locking pieces one cooperates with draw-in groove one, and the restriction lock pin moves axially, and guarantees that lock pin is hidden in the body; Because the setting of eccentric 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 can establish with key operated lock body, need use key when opening, thereby prevent that unrelated person from entering again from the outside at the locking bar opposite side.

Description of drawings

Fig. 1 is the structural representation of the utility model push rod lock embodiment;

Fig. 2 is the lateral view of Fig. 1;

Fig. 3 is the complete contraction state schematic diagram of the utility model push rod lock embodiment lock pin;

Fig. 4 is the utility model push rod lock embodiment lock pin elongation state schematic diagram;

Fig. 5 is the structural representation of limit locking pieces among the utility model push rod lock embodiment;

Fig. 6 is the sectional view of Fig. 5.

The specific embodiment

As shown in Figures 1 to 4, a kind of push rod lock, be used for safe escape door, comprise locking bar 110 and the lock pin 106 that is located at locking bar 110 ends, on lock pin 106, be provided with trigger mechanism, trigger mechanism comprises frizzen 101 that is provided with lock pin 106 axially parallels and the limit locking pieces 2 105 that is connected lock pin 106 and frizzen 101, as shown in Figure 5 and Figure 6, on limit locking pieces 2 105, be provided with through hole 1 and through hole 2 112, on lock pin 106, be provided with tapered portion 1, be provided with draw-in groove 2 104 on frizzen 101, the through hole 1 of limit locking pieces 2 105 and through hole 2 112 are enclosed within respectively on the draw-in groove 2 104 of the tapered portion 1 of lock pin 106 and frizzen 101; When lock pin 106 shrank, tapered portion 1 promoted limit locking pieces 2 105 by through hole 1 and laterally moves, as shown in Figure 3, put in place up to lock pin 106 contractions, limit locking pieces 2 105 breaks away from draw-in groove 2 104, and frizzen 101 just can endwisely slip and put in place, will lock complete opening.Also comprise limit locking pieces 1, on limit locking pieces 1, be provided with through hole 1 and through hole 2 112, on lock pin 106, be provided with draw-in groove 1, on frizzen 101, be provided with tapered portion 2 102; At lock pin 106 contraction states, the through hole 1 of limit locking pieces 1 and through hole 2 112 are enclosed within respectively on the tapered portion 2 102 of the draw-in groove 1 of lock pin 106 and frizzen 101, and restriction lock pin 106 moves axially; When frizzen 101 shrank, tapered portion 2 102 promoted limit locking pieces 1 by through hole 2 112 and laterally moves, and breaks away from draw-in groove 1 up to limit locking pieces 1, and lock pin 106 just can endwisely slip.Above-mentioned push rod lock is provided with the spring that laterally acts on limit locking pieces 103,105 in limit locking pieces 103,105 ends, is provided with the spring 92 of axial action in lock pin 106 on lock pin 106, is provided with the spring 91 of axial action in frizzen 101 on frizzen 101.Be provided with eccentric 121 and push rod 122 on locking bar 110, promote push rod 122, lock pin 106 shrinks under the effect of eccentric 121.Be provided with key operated lock body 124 at the opposite side of locking bar 110 with respect to push rod 122; Above-mentioned lock pin 106 is last lock pin, also comprises the following lock pin 123 that is located at locking bar 110 other ends.The end of frizzen 101 is provided with the inclined-plane, and the power resources of its contraction are in the lock collision of hole wall of inclined-plane and doorframe.

Above-mentioned push rod lock, primary structure is hidden in the Door leaf frame, not outstanding Door leaf frame, do not take up room, the door of this push rod lock is installed, outside palpus uses key operated, and is inner once pushing away out, so this push rod lock can be widely used in the escape that the case of emergency of places of public amusement such as subway shield door, cinema, Conference Hall uses down.Top, bottom lock pin were hidden in top, bottom lock pin in the Door leaf frame under limit locking pieces one effect when door was opened; When top, bottom lock pin do not shrink and put in place, limit locking pieces two just release trigger mechanism put in place when top, bottom lock pin shrink, limit locking pieces two rapid release trigger mechanism are opened smoothly, thereby avoid lock pin scratch threshold and ground.Limit locking pieces one discharged top, bottom lock pin when door was closed, and top, bottom lock pin stretch out doorframe under the spring force effect, and lock pin inserts in the lockpin hole simultaneously, effectively locking door body; Portion must use key operatedly outdoors, prevents that unrelated person from entering, and is inner once pushing away out, and is convenient to escape under the improper situation.

Claims

1, a kind of push rod lock, comprise locking bar (110) and be located at the lock pin (106) of described locking bar (110) end, it is characterized in that, on described lock pin (106), be provided with trigger mechanism, described trigger mechanism comprises frizzen (101) that is provided with described lock pin (106) axially parallel and the limit locking pieces two (105) that is connected lock pin (106) and frizzen (101), on described limit locking pieces two (105), be provided with through hole one (111) and through hole two (112), on described lock pin (106), be provided with tapered portion one (108), be provided with draw-in groove two (104) on described frizzen (101), the through hole one (111) of limit locking pieces two (105) and through hole two (112) are enclosed within respectively on the draw-in groove two (104) of the tapered portion one (108) of lock pin (106) and frizzen (101); When described lock pin (106) shrinks, tapered portion one (108) promotes limit locking pieces two (105) by through hole one (111) and laterally moves, and shrinks up to lock pin (106) and puts in place, and limit locking pieces two (105) breaks away from draw-in groove two (104), frizzen (101) just can endwisely slip and put in place, will lock complete opening.

2, according to the described push rod lock of claim 1, it is characterized in that, comprise limit locking pieces one (103), on described limit locking pieces one (103), be provided with through hole one (111) and through hole two (112), on described lock pin (106), be provided with draw-in groove one (107), on described frizzen (101), be provided with tapered portion two (102); At described lock pin (106) contraction state, the through hole one (111) of limit locking pieces one (103) and through hole two (112) are enclosed within respectively on the tapered portion two (102) of the draw-in groove one (107) of lock pin (106) and frizzen (101), and restriction lock pin (106) moves axially; When described frizzen (101) shrank, tapered portion two (102) promoted limit locking pieces one (103) by through hole two (112) and laterally moves, and breaks away from draw-in groove one (107) up to limit locking pieces one (103), and lock pin (106) just can endwisely slip.

3, according to claim 1 or 2 described push rod locks, it is characterized in that, be provided with the elastic component that laterally acts on described limit locking pieces (103,105).

4, according to claim 1 or 2 described push rod locks, it is characterized in that, be provided with the elastic component (92) of axial action in described lock pin (106).

5, according to claim 1 or 2 described push rod locks, it is characterized in that, be provided with the elastic component (91) of axial action in described frizzen (101).

6, according to claim 1 or 2 described push rod locks, it is characterized in that, be provided with eccentric (121) and push rod (122) on described locking bar (110), promote push rod (122), lock pin (106) shrinks under the effect of eccentric (121).

7, according to the described push rod lock of claim 5, it is characterized in that, be provided with key operated lock body (124) at the opposite side of described locking bar (110) with respect to push rod (122).

According to the described push rod lock of claim 5, it is characterized in that 8, described lock pin (106) is last lock pin, also comprise the following lock pin (123) that is located at locking bar (110) other end.