CN2549113Y - Automatic lock of safety door - Google Patents
Automatic lock of safety door Download PDFInfo
- Publication number
- CN2549113Y CN2549113Y CN 02203386 CN02203386U CN2549113Y CN 2549113 Y CN2549113 Y CN 2549113Y CN 02203386 CN02203386 CN 02203386 CN 02203386 U CN02203386 U CN 02203386U CN 2549113 Y CN2549113 Y CN 2549113Y
- Authority
- CN
- China
- Prior art keywords
- master latch
- rivet
- sliding panel
- hook
- lock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Lock And Its Accessories (AREA)
Abstract
Provided is a security door used automatic latch which comprises a lock case with a side plate. A lock head, a chief lock plunger slide plate and a spring are housed in the lock case. The chief lock plunger slide plate is connected with an upper pull plate and a lower pull plate. The chief lock plunger and the elastic blade which pass through the side plate are connected with the chief lock plunger slide plate. The chief lock plunger slide plate is connected with a swing plate through a rivet and a spring. The swing plate is provided with an L shaped stuck groove. The lock case is provided with a rivet which cooperates with the L shaped stuck groove. The chief lock plunger slide plate is connected with a hook through a rivet and a spring. The lock case is provided with a rivet which cooperates with the hook. The elastic blade is connected with the chief lock plunger slide plate through the hook. The utility model which has the advantages of a simple structure, easy processing and a low manufacture cost raises the prying prevention performance.
Description
Technical field
The utility model relates to the automatic latch of a kind of security door.
Background technology
In the prior art, security door is generally adorned a gear with automatic latch on tapered end, drive master latch and up and down the sliding panel of secondary latch bolt make the tooth bar form, when the gear on the tapered end rotates, the sliding panel of master latch moves horizontally, simultaneously last arm-tie, the lower pulling plate of secondary latch bolt move both vertically, and door lock is closed or open.The shortcoming of this lock is: the gear transmission structure complexity; When being in locking states, master latch is behind the pressure that bears bigger horizontal direction, and retraction has reduced the pick-proof performance of locking easily.
Summary of the invention
The technical problems to be solved in the utility model provides the automatic latch of a kind of security door simple in structure, and its master latch can bear the pressure of big horizontal direction.
The utility model adopts following technical scheme: the automatic latch of security door, comprise the lock box that has side plate, tapered end, master latch sliding panel, spring are housed in the lock box, the master latch sliding panel is associated with arm-tie and lower pulling plate, pass side plate master latch, bump tongue and connect with the master latch sliding panel, the master latch sliding panel is connected with oscillating deck by rivet and spring, and oscillating deck has L type draw-in groove, and lock box has the rivet that cooperates with L type draw-in groove; The master latch sliding panel is connected with hook by rivet and spring, and lock box has the rivet that cooperates with hook; Bumping tongue connects with the master latch sliding panel by hook.The utility model by tapered end rotation, drives oscillating deck and rotates in use, drives the horizontal movement of master latch sliding panel then, goes up arm-tie simultaneously and lower pulling plate moves both vertically, and makes a unlatching.During locking, doorframe touches and to bump tongue, drives hook and breaks away from rivet, and master latch sliding panel and go up arm-tie and lower pulling plate is made level respectively and moved both vertically under spring action makes an automatic blocking.Behind the locking, oscillating deck becomes a push rod, can prevent that master latch from bouncing back when bearing the pressure of bigger horizontal direction.
Because the utility model uses the gear structure of oscillating deck and the alternative prior art of hook, so, simple in structure, handling ease, cost of production is low; Have the push rod effect owing to oscillating deck of the present utility model again, so, can prevent that master latch from bouncing back, and improved the pick-proof performance when bearing the pressure of bigger horizontal direction.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the utility model, among the figure: side plate (1), go up arm-tie (2), lock box (3), bump tongue (4), rivet (5), hook (6), spring (7), master latch sliding panel (8), spring (9), rivet (10), rivet (11), oscillating deck (12), projection (13), master latch (14), spring (15), shifting block (16), tapered end (17), lower pulling plate (18).
The specific embodiment
The specific embodiment of the present utility model is represented locking states as shown in drawings among the figure.
Referring to accompanying drawing, the automatic latch of security door comprises the lock box (3) that has side plate (1), and tapered end (17), master latch sliding panel (8), spring (9) are housed in the lock box (3).Tapered end (17) has shifting block (16).Spring (9) withstands between the side and master latch sliding panel (8) of lock box (3), makes master latch sliding panel (8) keep the trend that moves right.
Master latch sliding panel (8) is associated with arm-tie (2) and lower pulling plate (18).Its draw bail adopts prior art (not drawing among the figure), when master latch sliding panel (8) side-to-side movement, can drive arm-tie (2) and lower pulling plate (18) moves up and down.
The master latch (14) that passes side plate (1) connects with master latch sliding panel (8).In the present embodiment, master latch (14) has 4, and fixed connection is on master latch sliding panel (8).
Master latch sliding panel (8) is connected with oscillating deck (12) by rivet (11) and spring (15).Rivet (11) is fixedly connected on master latch sliding panel (8), as the swinging axle of oscillating deck (12).Spring (15) makes oscillating deck (12) keep the trend of inverse clock rotation.Oscillating deck (12) has L type draw-in groove, and lock box (3) has the rivet (10) that cooperates with L type draw-in groove.
Master latch sliding panel (8) is connected with hook (6) by rivet and spring (7).This rivet (among the figure not label) is fixedly connected on master latch sliding panel (8), as the swinging axle of hook (6).Spring (7) makes hook (6) keep the trend of clockwise rotation.Lock box (3) has the rivet (5) that cooperates with hook (6).
The tongue (4) that bumps that passes side plate (1) connects with master latch sliding panel (8) by hook (6).It is fluted to bump tongue (4) one ends, and hook (6) has projection to stretch in the groove.
The opening process of present embodiment is as follows: when the shifting block (16) on the tapered end (17) rotates, oscillating deck (12) is that the center begins the swing of relative master latch sliding panel (8) clockwise with rivet (11), the L type draw-in groove of oscillating deck (12) breaks away from the screens control of rivet (10), and the upper right corner of oscillating deck (12) contacts with the side plate (1) of lock box (3) simultaneously.When shifting block (16) continues rotation, oscillating deck (12) lock box (3) relatively is fulcrum rotation (position of this fulcrum moves down on side plate gradually) with the upper right corner, at this moment rivet (11) will drive the elastic force that master latch sliding panel (8) overcomes spring (9) and be moved to the left, master latch (14), hook (6), bump tongue (4) and all move, lock and be in half-open position along with moving of master latch sliding panel (8).When shifting block (16) continues rotation again, will contact with the projection (13) of master latch sliding panel (8), make master latch sliding panel (8) continue to be moved to the left, to hang on the rivet (5) up to hook (6), lock is unlocked.
When locking a door, doorframe (not drawing among the figure) with bump tongue (4) and collide, drive the rotation of hook (6) inverse clock, make hook (6) disengaging rivet (5), under the elastic force effect of spring (9), entire mechanism set back (state as shown).At this moment, the L type draw-in groove of oscillating deck (12) is blocked by rivet (10), so oscillating deck (12) becomes a push rod between lock box (3) and master latch (14), can prevent that master latch (14) from bouncing back when bearing the pressure of bigger horizontal direction.
Claims (3)
1. automatic latch of security door, comprise the lock box (3) that has side plate (1), tapered end (17), master latch sliding panel (8), spring (9) are housed in the lock box (3), master latch sliding panel (8) is associated with arm-tie (2) and lower pulling plate (18), pass side plate (1) master latch (14), bump tongue (4) and connect with master latch sliding panel (8), it is characterized in that: master latch sliding panel (8) is connected with oscillating deck (12) by rivet (11) and spring (15), oscillating deck (12) has L type draw-in groove, and lock box (3) has the rivet (10) that cooperates with L type draw-in groove; Master latch sliding panel (8) is connected with hook (6) by rivet and spring (7), and lock box (3) has the rivet (5) that cooperates with hook (6); Bumping tongue (4) connects with master latch sliding panel (8) by hook (6).
2. automatic latch according to claim 1 is characterized in that: described master latch (14) has 4, and fixed connection is on master latch sliding panel (8).
3. automatic latch according to claim 1 and 2 is characterized in that: it is fluted to bump tongue (4) one ends, and hook (6) has projection to stretch in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02203386 CN2549113Y (en) | 2002-01-23 | 2002-01-23 | Automatic lock of safety door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02203386 CN2549113Y (en) | 2002-01-23 | 2002-01-23 | Automatic lock of safety door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2549113Y true CN2549113Y (en) | 2003-05-07 |
Family
ID=33685589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02203386 Expired - Fee Related CN2549113Y (en) | 2002-01-23 | 2002-01-23 | Automatic lock of safety door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2549113Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2709189A1 (en) * | 2018-12-17 | 2019-04-15 | Rodriguez Joaquin Nunez | Mechanical lock for community doors (Machine-translation by Google Translate, not legally binding) |
-
2002
- 2002-01-23 CN CN 02203386 patent/CN2549113Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2709189A1 (en) * | 2018-12-17 | 2019-04-15 | Rodriguez Joaquin Nunez | Mechanical lock for community doors (Machine-translation by Google Translate, not legally binding) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |