CN2234994Y - Anti-theft door lock - Google Patents
Anti-theft door lock Download PDFInfo
- Publication number
- CN2234994Y CN2234994Y CN 93241338 CN93241338U CN2234994Y CN 2234994 Y CN2234994 Y CN 2234994Y CN 93241338 CN93241338 CN 93241338 CN 93241338 U CN93241338 U CN 93241338U CN 2234994 Y CN2234994 Y CN 2234994Y
- Authority
- CN
- China
- Prior art keywords
- double
- lock
- dead bolt
- pin
- connecting rod
- 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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- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
Abstract
The utility model relates to an anti-theft door lock, which overcomes the abuse that such lock can only be locked in one direction; the anti-theft door lock provides a four-bar linkage reversing mechanism which can lock in three different directions. The four-bar linkage reversing mechanism is composed of a lock casing, a double-hook-shaped bolt, a connecting rod, a connecting pin, and an upper and a lower slide blocks. When a door is locked, a pin fixed on the double-hook-shaped bolt drives one end of four-bar linkage to move downwards, a link pin can shrink inwards in a lock casing slide groove by forced; the other end of the four-bar linkage, an upper connecting plate, and parts connected with the upper connecting plate move upwards and are used as bolts. The four-bar linkage is arranged in afastening type door lock casing. The utility model is suitable for various door locks, and the functions of an original lock can not be avoided.
Description
The utility model relates to a kind of safe-guard door lock, is the improvement that existing button door lock (having another name called super door lock) is increased different directions locking point mechanism arrangement, and it is applicable to various door locks.
Existing button door lock generally is that dead bolt inserts in the doorframe snap close plate hole when locking a door, and reaches the purpose of locking a door, but can only a direction locking, and antitheft fastness is poor.According to public security department's introduction, have in quite a few theft case to be to use sled, impact method is entered the room latch plate and doorframe separation failure, really with skilled unlocking crack a crib less.
The purpose of this utility model is to increasing the improvement of two different directions locking point mechanism arrangement in the existing button door lock, a kind of quadric chain reversing arrangement is provided, a kind of safe-guard door lock of three different directions of locking makes this lockset that higher pick-proof be arranged, the firm performance of protecting against shock simultaneously.
The purpose of this utility model can realize by following measure: a kind of safe-guard door lock quadric chain reversing arrangement, and by the pin that is installed on the double-hook type dead bolt (3), the link lock (1) on the top shoe (13), the chute of connecting rod (2) and lock housing (9) constitutes.
When locking a door, double-hook type dead bolt (3) moves downward, and inserts in the hole of latch plate (4), pins the right-hand below of also pinning door of door; Meanwhile, be fixed on the end that pin on the double-hook type dead bolt (3) drives four connecting rods and move downward, in the chute of lock housing (9), inwardly shrink because of being subjected to component effect link pin, connecting rod (2) at this moment, link pin (1) moves upward, and reaches tripartite locking; When opening the door, above-mentioned part movement direction is opposite, and the locking of three directions is opened, and realizes unblanking purpose.
The utility model has been set up the quadric chain reversing arrangement on the basis of existing similar door lock, can increase the locking point of two different directions; More than in addition part all in lock housing (9), simple in structure, easy for installation, overcome the drawback that existing similar door lock can only a direction of locking.The utility model has been realized the locking point of three different directions of energy locking, thereby has higher pick-proof, special firm performance such as protecting against shock.
Concrete structure of the present utility model is provided by the following drawings:
Fig. 1 is a quadric chain reversing arrangement front view.
Fig. 2 is lock construction portion dress front view
The utility model describes embodiment in detail below in conjunction with accompanying drawing 1, Fig. 2.As accompanying drawing 1, shown in Figure 2, a kind of quadric chain reversing arrangement of safe-guard door lock, by the driving link pin, driven member four connecting rod two parts are formed.Driving link part is by pin, double-hook type dead bolt (3), and handle gear (10), rivet (5), sliding block (6) rivet (7), lower connecting plate (8) constitutes; At first with the top of dowel fixes in double-hook type dead bolt (3), sliding block (6) is fixed on the bottom of double-hook type dead bolt (3) with rivet (5), lower connecting plate (8) is fixed on the sliding block (6) with rivet (7), and handle gear (10) matched in clearance can cooperate transmission with the tooth bar of double-hook type dead bolt (3) in lock housing (9).Driven member four shaft portion are by connecting rod (2) link pin (1), lock housing (9) top shoe (13), and rivet (12), upper junction plate (11) is formed; At first connecting rod (2) is connected with link pin (1) matched in clearance, its end is connected with pin with double-hook type dead bolt (3), the other end is connected with top shoe (13), middle two link pins insert in the chute of lock housing (9), upper junction plate (11) is fixed on the top shoe (13) with rivet (12), can make parallel link motion.
Operating principle of the present utility model and operation instruction:
When locking a door, handle is held wheel (10) and is clockwise rotated, and the tooth bar of stirring double-hook type dead bolt (3) moves downward, and at this moment the two of this part collude in the hole of inserting latch plate (4), pin the right-hand of door; At this moment the sliding block of Lian Jieing (6), rivet (7), junction plate (8) also moves downward, and pins the below of door; Meanwhile, being fixed on pin on the double-hook type dead bolt (3) drives four connecting rods, one end and moves downward, because of in the chute of lock housing (9), inwardly shunk by component effect link pin, at this moment connecting rod (2), link pin (1) moves upward, promote top shoe (13), rivet (12) upper junction plate (11) and the dead bolt that links to each other thereof move upward, and pin the top of door.When opening the door, handle gear (10) counterclockwise rotates, and double-hook type dead bolt (3) moves upward, and other correlated parts is all withdrawn, and door just is opened.When the double-hook type dead bolt moved up and down again, motion went round and began again.
Claims (1)
1, a kind of safe-guard door lock with double-hook type dead bolt, mainly by lock housing (9), double-hook type dead bolt (3), handle gear (10), latch plate (4), connecting rod (2) is formed, and it is characterized in that: set up one or four connecting rod changement devices in the inside of lock housing (9), this changement device is by connecting rod (2), link pin (1), the guide chute of lock housing (9), top shoe (13), rivet (12), upper junction plate formations such as (11); At first connecting rod (2) is connected with link pin (1) matched in clearance, the one end is connected with pin with double-hook type dead bolt (3), the other end is connected with top shoe (13), middle two link pins insert in the chute of lock housing (9), upper junction plate (11) is fixed on the top shoe (13) with rivet (12), can make parallel link motion, when double-hook type dead bolt (3) when moving up and down, being fixed on pin on this part drives four connecting rods, one end and moves downward with double-hook type dead bolt (3), because of in the guide chute of lock housing (9), inwardly shunk by component effect link pin, at this moment connecting rod (2), link pin (1) moves upward, promote top shoe (13), upper junction plate (11) and the component motion that matches thereof are made dead bolt and are used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93241338 CN2234994Y (en) | 1993-10-12 | 1993-10-12 | Anti-theft door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93241338 CN2234994Y (en) | 1993-10-12 | 1993-10-12 | Anti-theft door lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2234994Y true CN2234994Y (en) | 1996-09-11 |
Family
ID=33815331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93241338 Expired - Fee Related CN2234994Y (en) | 1993-10-12 | 1993-10-12 | Anti-theft door lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2234994Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9771741B2 (en) | 2015-01-19 | 2017-09-26 | T2 Systems Canada Inc. | Dual cam lock apparatus |
-
1993
- 1993-10-12 CN CN 93241338 patent/CN2234994Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9771741B2 (en) | 2015-01-19 | 2017-09-26 | T2 Systems Canada Inc. | Dual cam lock apparatus |
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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 |