CN203846868U

CN203846868U - Prying-resistant door lock

Info

Publication number: CN203846868U
Application number: CN201420152536.0U
Authority: CN
Inventors: 魏祖旭
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-03-31
Filing date: 2014-03-31
Publication date: 2014-09-24
Anticipated expiration: 2024-03-31

Abstract

The utility model discloses a prying-resistant door lock which comprises a lock casing. A poking wheel capable of rotating under driving of a lock cylinder is installed in the lock casing. A square tongue sliding plate capable of sliding vertically in the lock casing is further arranged in the lock casing. When the poking wheel rotates, poking teeth of the poking wheel poke the square tongue sliding plate to slide vertically, at least one square tongue is fixed at the upper end of the square tongue sliding plate, a transverse connection plate is further fixed on the square tongue sliding plate, a kidney-shaped hole is formed in at least one end of the transverse connection plate, at least one lock hook is further hinged in the lock casing, a lock hook hole is formed in the hook tail portion of the lock hook, a sliding shaft is fixed in the lock hook hole and is arranged in the kidney-shaped hole in a sliding mode, the square tongue sliding plate vertically slides to drive the transverse connection plate to slide vertically, and the transverse connection plate slides vertically to drive the lock hook to rotate, so that the hook portion of the lock hook can stretch out of the lock casing or retreat back into the lock casing. The door lock has the advantage of being simple in structure and high in prying-resistant anti-theft performance.

Description

Antitampering door lock

Technical field

The utility model relates to door lock, especially relates to a kind of simple in structure, Antitampering door lock that pick-proof and anti-theft performance is strong.

Background technology

Along with offender's crime means is more brilliant, the security door that safety factor is relatively high is more and more subject to owner's favor.But as everyone knows, judge the quality of security door, and except will seeing shop front quality material quality, most important is exactly safe-guard door lock, although be slight one, its quality is often directly connected to household's the security of the lives and property.At present door lock mainly inserts doorframe by square tongue and latch bolt and locks a door on the market, because this door lock only has horizontal connection the between doorframe, constructs relatively simply, and this is to lock easily to be pried open.And the structure that some door lock can increase some multiple securities is as universe rod etc., but these door latch structures are comparatively complicated, in use easily break down.

Utility model content

For addressing the above problem, the purpose of this utility model is to provide a kind of simple in structure, Antitampering door lock that pick-proof and anti-theft performance is strong.

The utility model is realized by following technical measures, a kind of Antitampering door lock, include lock housing, in lock housing, being provided with can be by the thumb wheel of lock core driven rotary, in described lock housing, be also provided with the square tongue slide plate that can slide up and down in lock housing, when described thumb wheel rotation, the moving tooth side of the stirring tongue slide plate of thumb wheel slides up and down, described side's tongue slide plate upper end is fixed with at least one party's tongue, on described side's tongue slide plate, be also fixed with a cross connecting plate, described cross connecting plate at least one end is provided with mounting hole, in described lock housing, be also hinged with at least one latch hook, the hook afterbody of described latch hook is provided with a hook lock, in described hook lock, be fixed with a slide-bar, described slide-bar is slidably arranged in mounting hole, described side's tongue slide plate slides up and down and drives cross connecting plate to slide up and down, described cross connecting plate slides up and down band moveable lock hook and rotates, thereby make the hook portion of latch hook stretch out or retract in lock housing.

As a kind of optimal way, described cross connecting plate two ends are respectively provided with a mounting hole, are also hinged with two latch hooks in described lock housing, and the hook afterbody of described latch hook is provided with a hook lock, in described hook lock, be fixed with a slide-bar, described slide-bar is slidably arranged in mounting hole.

As a kind of optimal way, in described lock housing, be also hinged with a L shaped link, the end on one side of described L shaped link is provided with a link kidney-shaped slide opening, described slide-bar is slidably installed in link kidney-shaped slide opening simultaneously, the another side end of described L shaped link is hinged with a thick end of the scroll or the thin end of the scroll, described cross connecting plate slides up and down and drives L shaped link to rotate, and described L shaped link rotates and drives the thick end of the scroll or the thin end of the scroll stretch out or retract in lock housing.

As a kind of optimal way, described the thick end of the scroll or the thin end of the scroll are made up of the interior bar with hinge hole and the outer bar being connected to outside interior bar.

The fixing cross connecting plate band moveable lock hook of the utility model utilization and square tongue slide plate stretches out or retracts in lock housing, after locking a door like this, in square tongue and latch bolt insertion doorframe, also increase to the hook power of doorframe one side or two sides, the utility model does not increase too many drive mechanism, only the side's of dependence tongue slide plate slide up and down the pick-proof that just can increase door lock, therefore the utlity model has advantage simple in structure, that pick-proof and anti-theft performance is strong.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model embodiment while locking;

Fig. 2 is the structural representation of the utility model embodiment while unblanking;

Fig. 3 is the decomposition texture schematic diagram at the utility model embodiment side tongue slide plate and cross connecting plate place.

Detailed description of the invention

Below in conjunction with embodiment and contrast accompanying drawing the utility model is described in further detail.

A kind of Antitampering door lock of the present embodiment, please refer to Fig. 1 to Fig. 3, include lock housing 1, in lock housing 1, being provided with can be by the thumb wheel of lock core driven rotary 2, in described lock housing 1, be also provided with the square tongue slide plate 3 that can slide up and down in lock housing 1, when described thumb wheel 2 rotates, the moving tooth side of the stirring tongue slide plate 3 of thumb wheel slides up and down, described side's tongue slide plate 3 upper ends are fixed with at least one party's tongue 2, on described side's tongue slide plate 3, be also fixed with a cross connecting plate 7, described cross connecting plate 7 at least one end is provided with mounting hole 71, in described lock housing 1, be also hinged with at least one latch hook 8, the hook afterbody of described latch hook 8 is provided with a hook lock 82, in described hook lock 82, be fixed with a slide-bar 10, described slide-bar 10 is slidably arranged in mounting hole, described side's tongue slide plate 3 slides up and down and drives cross connecting plate 7 to slide up and down, described cross connecting plate 7 slides up and down band moveable lock hook 8 and rotates around latch hook hinge hole 81, thereby make the hook portion of latch hook 8 stretch out or retract in lock housing.

The fixing cross connecting plate band moveable lock hook 8 of the present embodiment utilization and square tongue slide plate stretches out or retracts in lock housing, after locking a door like this, in square tongue 2 and latch bolt insertion doorframe, also increase to the hook power of doorframe one side or two sides, increased the pick-proof and anti-theft performance of door lock.

The Antitampering door lock of the present embodiment, please refer to Fig. 1 to Fig. 3, on the basis of previous technique scheme, can also be specifically, cross connecting plate 7 two ends are respectively provided with a mounting hole 71, in described lock housing 1, be also hinged with two latch hooks 8, the hook afterbody of described latch hook 8 is provided with a hook lock 82, is fixed with a slide-bar 10 in described hook lock 82, and described slide-bar 10 is slidably arranged in mounting hole 71.

The Antitampering door lock of the present embodiment, please refer to Fig. 1 to Fig. 3, on the basis of previous technique scheme, can also be specifically, in lock housing, be also hinged with a L shaped link 9, the end on one side of described L shaped link 9 is provided with a link kidney-shaped slide opening 93, described slide-bar 10 is slidably installed in link kidney-shaped slide opening 93 simultaneously, the another side end of described L shaped link 9 is hinged with a thick end of the scroll or the thin end of the scroll 4, described cross connecting plate 7 slides up and down and drives L shaped link 9 to rotate around hinge hole 91, and described L shaped link 9 rotates and drives the thick end of the scroll or the thin end of the scroll 4 stretch out or retract in lock housing 1.By being set, universe rod further strengthens the pick-proof and anti-theft of door lock.

The Antitampering door lock of the present embodiment, please refer to Fig. 1 to Fig. 3, on the basis of previous technique scheme, can also be specifically, and the thick end of the scroll or the thin end of the scroll 4 are made up of the interior bar 42 with hinge hole 41 and the outer bar 43 being connected to outside interior bar 42.

More than that the utility model Antitampering door lock is set forth; be used for helping to understand the utility model; but embodiment of the present utility model is not restricted to the described embodiments; anyly do not deviate from the change done under the utility model principle, modification, substitute, combination, simplify; all should be equivalent substitute mode, be included in protection domain of the present utility model in.

Claims

1. an Antitampering door lock, it is characterized in that: include lock housing, in lock housing, being provided with can be by the thumb wheel of lock core driven rotary, in described lock housing, be also provided with the square tongue slide plate that can slide up and down in lock housing, when described thumb wheel rotation, the moving tooth side of the stirring tongue slide plate of thumb wheel slides up and down, described side's tongue slide plate upper end is fixed with at least one party's tongue, on described side's tongue slide plate, be also fixed with a cross connecting plate, described cross connecting plate at least one end is provided with mounting hole, in described lock housing, be also hinged with at least one latch hook, the hook afterbody of described latch hook is provided with a hook lock, in described hook lock, be fixed with a slide-bar, described slide-bar is slidably arranged in mounting hole, described side's tongue slide plate slides up and down and drives cross connecting plate to slide up and down, described cross connecting plate slides up and down band moveable lock hook and rotates, thereby make the hook portion of latch hook stretch out or retract in lock housing.

2. Antitampering door lock according to claim 1, it is characterized in that: described cross connecting plate two ends are respectively provided with a mounting hole, in described lock housing, be also hinged with two latch hooks, the hook afterbody of described latch hook is provided with a hook lock, in described hook lock, be fixed with a slide-bar, described slide-bar is slidably arranged in mounting hole.

3. Antitampering door lock according to claim 1 and 2, it is characterized in that: in described lock housing, be also hinged with a L shaped link, the end on one side of described L shaped link is provided with a link kidney-shaped slide opening, described slide-bar is slidably installed in link kidney-shaped slide opening simultaneously, the another side end of described L shaped link is hinged with a thick end of the scroll or the thin end of the scroll, described cross connecting plate slides up and down and drives L shaped link to rotate, and described L shaped link rotates and drives the thick end of the scroll or the thin end of the scroll stretch out or retract in lock housing.

4. Antitampering door lock according to claim 3, is characterized in that: described the thick end of the scroll or the thin end of the scroll are made up of the interior bar with hinge hole and the outer bar being connected to outside interior bar.