CN2744807Y

CN2744807Y - Safety emergency door with hidden push-rod lock

Info

Publication number: CN2744807Y
Application number: CN 200420071003
Authority: CN
Inventors: 杨红颜
Original assignee: China Fangda Group Co Ltd
Current assignee: Shenzhen Fangda Automation System Co., Ltd.
Priority date: 2004-06-22
Filing date: 2004-06-22
Publication date: 2005-12-07
Anticipated expiration: 2014-06-22

Abstract

The utility model relates to safety emergency door with a hidden push-rod lock, solving the defect that the main structure of the present push rod is projected out of a door leaf so that people's indoor activities are influenced. The safety emergency door of the utility model comprises a door frame, the door leaf and a push rod lock. The push rod lock comprises a lock seat arranged at the upper part of the door frame and a lock hole at the lower part of the door frame, a lock rod and an eccentric lock head arranged in the door frame, and a lateral push rod arranged inside of the door leaf. Wherein, the structure of eccentric lock head is similar to an H shape. The first lower foot is arranged in the door leaf frame through a rotating shaft; the second lower foot is longer, and is provided with a bending hook which inward bends a bit. The upper end of the lock rod is provided with a lock rod slice which can extend in the lower recess of the eccentric lock head. When people are inside of the door leaf, people only need to push and press the push rod to open the door lock, and the utility model is even opened by people's unconscious squeezing action. When people are outside of the door leaf, people need a key to open the door lock, so the utility model can prevent unauthorized personnel entering inside.

Description

Safe escape door with concealed push rod lock

Technical field

The utility model relates to safe escape door, more particularly, relates to a kind of safe escape door with concealed push rod lock, for example the safe escape door of subway shield door.

Background technology

In buildings such as subway, underground parking garage, all need to be provided with the safe escape door that emergency escape is used, so that when emergencies such as generation fire alarm, allow people can evacuate to the outside of these buildings rapidly.The setting of this safe escape door needs to guarantee that the survivor can open push rod lock internally easily, then can not open from the outside or need could open by special key, enters to prevent unrelated person.

In traditional push rod lock, though what many employings were arranged is that keyhole is established and inner structure of establishing door handle in the outside, can satisfy and at will to open from the outside then the special key of needs internally and just can open this requirement, but its door handle application of force direction is inconsistent with the door opening direction, is not easy to survivor's fan that gives the door a swift push; In addition, the primary structure of the push rod lock of prior art all is installed in the door leaf outside, takies than large space, just can not normally use in the place that is subjected to the restriction of installing space position.

The utility model content

At the above-mentioned defective of prior art, the utility model will solve existing push rod lock and can take than large space, in the out of use problem in place that is subjected to the restriction of installing space position.

The technical scheme in the invention for solving the technical problem is: constructs a kind of safe escape door, comprises doorframe with concealed push rod lock, and door leaf, and can be with the push rod lock that locks mutually between the upper and lower side of door leaf and doorframe; Comprise in the described push rod lock:

The lock tongue that is contained in the inboard of doorframe top and stretches out downwards;

Be located at the inboard and the opening lockhole up of doorframe bottom;

Be contained in the described door leaf and locking bar moving up and down, be contained in the eccentric tapered end in the described door leaf, and be contained in described door leaf inboard, be connected with described locking bar, also can promote the horizontal push rod that described locking bar moves up by first eccentric stiffener;

Its structure of described eccentric tapered end is similar to " H " shape, be provided with low groove on its first, second between the pin, being provided with between the pin on its first, second can be for the upper groove of described lock tongue insertion, its first leftover bits and pieces is contained in described door leaf inside by a rotating shaft, its second leftover bits and pieces is long and have an inside little curved hook, and described eccentric tapered end can rotate suitable angle around described rotating shaft;

Be contained in the described door leaf, can move up and down and locking bar in the described lockhole can be inserted in the lower end, the upper end of described locking bar is provided with a locking bar sheet in the low groove that can stretch into described eccentric tapered end, the main body of described locking bar sheet be rectangle and have in the low groove that stretches out, can stretch into described eccentric tapered end obliquely upward or withstand on the described eccentric tapered end second leftover bits and pieces hook place tiltedly stretch piece;

And, be contained in described door leaf inboard, be connected with described locking bar, also can promote the horizontal push rod that described locking bar moves up by first eccentric stiffener.

In the process of opening the door, can promote described locking bar by described first eccentric stiffener behind the described push rod pressurized moves up, the locking bar lower end is withdrawed from described lockhole, and the locking bar sheet that makes described locking bar upper end discharges spacing to the tapered end second leftover bits and pieces hook, allow described tapered end produce forward bias because of self gravitation then make tapered end second on pin be lower than the lower end of described lock tongue, door leaf is opened.In the process of closing the door, described tapered end first on pin can run into described lock tongue, be subjected to its promotion and make whole tapered end backwards rotation, the hook that tapered end second is got a foothold can discharge the locking bar sheet that is caught on by it, described locking bar makes its lower end insert in the described lockhole because of self gravitation moves down, and make the locking bar sheet tiltedly stretch the inboard that piece withstands on the described tapered end second leftover bits and pieces hook, door leaf locking.

Also comprise a lock core mechanism in the push rod lock of the present utility model, described lock core is connected with described locking bar by second eccentric stiffener, its keyhole is contained in the outside of described door leaf, and the key in the described keyhole of rotation insertion can promote described locking bar by second eccentric stiffener and move up.

In the utility model, the transmission mechanism of push rod lock is hidden in door leaf inside, and the push rod that is loaded on the door leaf inboard can not given prominence to Door leaf frame, does not understand taking up room more; In the indoor, only need simple pushing push rod can open door leaf, be convenient to escape under the improper situation; Then must use key to open in the chamber side, thereby can prevent that unrelated person from entering.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:

Fig. 1 is the schematic perspective view of the door leaf in preferred embodiment of the utility model;

Fig. 2 is that the A of door leaf shown in Figure 1 is to stereogram;

Fig. 3 is contained in the B of the push rod lock transmission mechanism in the door leaf shown in Figure 2 to view;

Fig. 4 is the left view of Fig. 3;

Fig. 5 is the right view of Fig. 3;

Fig. 6 is the enlarged diagram of fit structure between tapered end shown in Fig. 5 and the lock tongue;

Fig. 7 is the schematic diagram when being in opening between tapered end shown in Fig. 6 and the lock tongue.

The specific embodiment

Preferred embodiment of the utility model safety escape door such as Fig. 1 are to shown in Figure 7.This safe escape door by doorframe (do not draw in the drawings, door leaf 2 and can with between the upper and lower side of door leaf and doorframe mutually the push rod lock of locking form.

Wherein, push rod lock is mainly by forming with lower member:

1) the lock tongue 3 that is contained in the inboard of doorframe top and stretches out downwards;

2) be located at the inboard and the opening lockhole up of doorframe bottom, a lock hole seat 8 has been shown among Fig. 4;

3) be contained in the door leaf and locking bar 5 moving up and down, locking bar among Fig. 3, Fig. 4, Fig. 5 is communicated with from top to bottom always, because its physical length is longer, herein in order to illustrate conveniently, some main segmental structures have been drawn as, be provided with a locking bar sheet 11 in the upper end of locking bar, the main body of this locking bar sheet is a rectangle, and has one and tiltedly stretch piece to what stretched out in the upper right side;

4) be contained in the interior eccentric tapered end 4 of door leaf, as can be seen from Figure 6, the structure of this off-centre tapered end is similar to " H " shape, it is respectively equipped with groove up and down, its lower left corner (first gets a foothold) is contained in door leaf inside by a rotating shaft 13, and its lower right corner (second gets a foothold) is long and have an inside little curved hook, when there not being external force to do the time spent, this tapered end can clockwise rotate under the self gravitation effect, makes its center of gravity and rotating shaft 13 on same vertical line;

5) be contained in the horizontal push rod 10 of door leaf inboard, it is connected with locking bar 5 by first eccentric stiffener 14, can promote locking bar by first eccentric stiffener moves up, right side at horizontal push rod 10 also is provided with back-moving spring 15, after the pressure of pushing push rod disappeared, back-moving spring can make push rod return to the normal position, and the push rod among Fig. 3 from left to right is communicated with always, conveniently be drawn as the two-part structure in order to illustrate herein;

6) lock core mechanism 6, it is connected with locking bar 5 by second eccentric stiffener 16, and its keyhole 61 is contained in the outside of door leaf 2, rotates the key that is inserted in the keyhole, then can promote locking bar 5 by second eccentric stiffener and move up.

When opening the door in the process, after push rod 10 is subjected to outside applied pressure (for example being depressed by the survivor), promoting locking bar 5 by first eccentric stiffener 14 moves up, the lower end of locking bar is withdrawed from lock hole seat 8, and the locking bar sheet 1 that makes locking bar upper end discharges spacing to the tapered end second leftover bits and pieces hook, clockwise deflection makes the upper right corner (pin on second) of tapered end be lower than the lower end of lock tongue because of self gravitation produces to allow tapered end, and allow the hook of tapered end lower right corner that the lower end of locking bar sheet is caught on, make it and can not descend; At this moment, the direction of arrow of pressing Fig. 7 below promotes door leaf, door can be opened.

Shown in the arrow of Fig. 7 top, in the process of closing the door, the upper left corner of tapered end (pin on first) can be promoted by lock tongue 3, whole tapered end is rotated counterclockwise, and the hook of tapered end lower right corner can discharge the locking bar sheet 11 that is caught on by it, and locking bar 5 moves down because of self gravitation, its lower end is inserted in the lock hole seat 8, and make the locking bar sheet tiltedly stretch the right side that piece withstands on tapered end lower right corner hook, this moment, whole tapered end 4 kept plumbness, lock tongue 3 firmly can be limited in its upper groove.

From Fig. 6 and Fig. 7, as can be seen, can be in the low groove of tapered end 4 smoothly move, a slightly larger in diameter also is housed in the roller 12 of tiltedly stretching the piece width in the end of tiltedly stretching piece for the ease of the piece of tiltedly stretching of locking bar sheet 11.

In addition, as shown in Figure 3, in order to guarantee accurately to move down at locking bar 5 at closing time, the following spring 9 that pushes away that applies downward active force to locking bar also is housed, when the lower right corner of tapered end 4 hook has discharged qualification to locking bar sheet 11, locking bar can reach under the effect that pushes away spring 9 down at self gravitation and move down, and can be inserted in the lock hole seat 8 to guarantee its lower end.

Claims

1, a kind of safe escape door with concealed push rod lock comprises doorframe, door leaf, and can be with the push rod lock that locks mutually between the upper and lower side of door leaf and doorframe; It is characterized in that, comprise in the described push rod lock:

Be located at the inboard and the opening lockhole up of doorframe bottom;

Be contained in the eccentric tapered end in the described door leaf, its structure is similar to " H " shape, be provided with low groove on its first, second between the pin, being provided with between the pin on its first, second can be for the upper groove of described lock tongue insertion, its first leftover bits and pieces is contained in described door leaf inside by a rotating shaft, its second leftover bits and pieces is long and have an inside little curved hook, and described eccentric tapered end can rotate suitable angle around described rotating shaft;

Be contained in the described door leaf, can move up and down and locking bar in the described lockhole can be inserted in the lower end, the upper end of described locking bar is provided with a locking bar sheet, the main body of described locking bar sheet be rectangle and have in the low groove that stretches out, can stretch into described eccentric tapered end obliquely upward or withstand on the described eccentric tapered end second leftover bits and pieces hook place tiltedly stretch piece;

2, the safe escape door with concealed push rod lock according to claim 1, it is characterized in that, also comprise a lock core mechanism in the described push rod lock, described lock core is connected with described locking bar by second eccentric stiffener, its keyhole is contained in the outside of described door leaf, and the key in the described keyhole of rotation insertion can promote described locking bar by second eccentric stiffener and move up.

3, the safe escape door with concealed push rod lock according to claim 2 is characterized in that, first side of described door leaf is contained on the described doorframe by linkage, and the position of described locking bar in door leaf is near second side of described door leaf.

4, the safe escape door with concealed push rod lock according to claim 3, it is characterized in that, one end of described push rod is connected with described locking bar by described first eccentric stiffener, also is equipped with at the other end of described push rod to make push rod return to the entopic bullet that resets.

5, the safe escape door with concealed push rod lock according to claim 4 is characterized in that, the following spring that pushes away that applies downward thrust to locking bar also is housed in described door leaf.

6, the safe escape door with concealed push rod lock according to claim 5 is characterized in that, a slightly larger in diameter also is equipped with in the roller of tiltedly stretching the piece width in described end of tiltedly stretching piece.