CN201095892Y

CN201095892Y - Double bolt door lock square strip

Info

Publication number: CN201095892Y
Application number: CNU2007200557063U
Authority: CN
Inventors: 周文贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-17
Filing date: 2007-08-17
Publication date: 2008-08-06
Anticipated expiration: 2017-08-17

Abstract

The utility model relates to the theftproof lock field, in particular to a square bar applied to a double bolt gate lock, which is composed of an inner square bar and an outer square bar. One end surface of the inner square bar is integrated with a plug, the tail end of the plug and the end surface of the inner square bar form a limiting step, a circular hole which is matched with the plug is arranged at one end of the outer square bar, the inner square bar is sleeved on the outer square bar, a positioning hole is arranged at one side wall of the inner square bar, a positioning spring and a positioning pin are installed inside the positioning hole, a limiting salient point is arranged at the surface of the end of the outer square bar near the circular hole, the area from the limiting salient point to the end surface of the circular hole of the outer square bar is a first positioning area, the area from the positioning pin to the limiting step of the inner square bar is of a second positioning area, and the length of which is larger than that of the first positioning area. The square bar of the double bolt gate lock has simple structure, reasonable design and low cost for manufacture.

Description

A kind of square bar that is applied to the double lock tongue door lock

Technical field:

The utility model relates to the theftproof lock field, especially a kind of square bar that is applied to the double lock tongue door lock.

Background technology:

Existing some door locks of Shi Yonging, though only need just can open and close door lock once with key turns, the extension elongation of dead bolt is lacked, door lock is easily pried open and used dangerous.Be head it off, the door lock that has occurred double lock tongue, many dead bolts structure on the market in succession, this door lock can solve antitheft problem, but also owner is brought inconvenience simultaneously, need utilize key turns repeatedly lock could be opened when unblanking, the speed of unblanking is slow, uses inconvenient, especially when situations such as generation emergency, fire, earthquake, can not open door lock fast, tend to cause irremediable serious consequence.Problem at above-mentioned emergency appearance, people have done further improvement to this theftproof lock, door lock with the double lock tongue structure is an example, for door lock with oblique tongue and square tongue structure, in lock body, generally be provided with three water caltrops that be stacked together, separate, be in the top and two middle water caltrops can be stirred oblique tongue, the water caltrop that is in the below can the side's of stirring tongue, generally need open insurance when utilizing the water caltrop side of stirring tongue earlier or utilize key just can open.At present, way commonly used is that the water caltrop that utilizes the water caltrop that screw can the side's of stirring tongue and can stir oblique tongue fixes as one, then that handle and screw is affixed, another water caltrop that can stir oblique tongue is affixed with a handle separately, people rotate handle without the time can open oblique tongue, if at this moment square tongue also locking just need utilize key just can open the door; People rotate handle in doors can open oblique tongue and square tongue simultaneously, and does not need to utilize key, can realize quickly unlocking when meeting emergency, is convenient for people to escape.But, the double lock tongue door lock of present this structure, because wherein two water caltrops are by screw, when lock body need commutate installation, if do not change structure, just following situation can appear: can open oblique tongue and square tongue simultaneously rotating handle outdoors, rotate handle in doors and but can only beat oblique tongue, this has just lost the meaning of theftproof lock, the way that solves can only be by removable screw, again two other water caltrop fixed again, but complicated operation, the ordinary consumer of not understanding lock body structure is difficult to two other water caltrop is fixed as one, and makes troubles to the user.

The utility model content:

The utility model is at the prior art deficiency, and the spy provides a kind of square bar that is applied to the double lock tongue door lock, utilizes the utility model can realize quickly unlocking, and the utility model reasonable in design, manufacture craft simple, easily produce.

For achieving the above object, the technical scheme that the utility model is taked is: it is to be made of interior side's bar and foreign side's bar, in the wherein end face of square bar is one-body molded that plug arranged, the terminal end face with interior bar side of plug forms a limited step, foreign side's bar one end offers the circular hole that cooperates with plug, interior square bar is socketed on foreign side's bar, have a locating hole on one sidewall of interior square bar, retainer spring and alignment pin are installed in the locating hole, foreign side's bar is provided with spacing salient point on the surface near this end of circular hole, spacing salient point is first positioning area to the zone of the circular hole end face of foreign side's bar, alignment pin is second positioning area to the zone of the limited step of interior side's bar, and the length of second positioning area is greater than the length of first positioning area.

Relative two sides, plug middle part offer groove respectively, and two relative inside walls are respectively arranged with salient point with groove fit to foreign side's bar at the circular hole place.

The beneficial effects of the utility model are: second positioning area of interior side's bar can fix as one two water caltrops, first positioning area of foreign side's bar can be fixed another water caltrop, because interior side's bar is on the socket foreign side bar, the rotation mutually noninterfere of interior square bar and foreign side's bar, installing handle at the other end of interior side's bar and foreign side's bar can realize opening the door, if lock body need commutate when installing, only square bar commutation need be inserted in three water caltrops and get final product, simple to operate, easy for installation, in addition, the utility model is simple in structure, reasonable in design, cost of manufacture is low.

Description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a partial sectional view of the present utility model.

The specific embodiment:

See Fig. 1, shown in 2, the utility model is to be made of interior side's bar 1 and foreign side's bar 2, in the wherein end face of square bar 1 is one-body molded that plug 3 arranged, plug 3 terminal end faces with interior bar side 1 form a limited step 11, foreign side's bar 2 one ends offer the circular hole 21 that cooperates with plug 3, interior square bar 1 is socketed on foreign side's bar 2, relative two sides, plug 3 middle parts offer groove 31 respectively, the plug 3 of interior square bar 1 inserts in the circular hole 21 of foreign side's bars 2, then at two shrinkage pools of surperficial punching press of foreign side's bar 2, make two inside walls of circular hole 21 form a salient point 22 respectively, salient point 22 snaps in groove 31, square bar 1 can rotate at the circular hole 21 of foreign side's bar 2 in making, but can not separate with foreign side bar 2, have a locating hole 12 on one sidewall of interior square bar 1, retainer spring 13 and alignment pin 14 are installed in the locating hole 12, foreign side's bar 2 is provided with spacing salient point 23 on the surface near circular hole 21 these ends, spacing salient point 23 is first positioning area 4 to the zone of circular hole 21 end faces of 1 of foreign side, alignment pin 14 is the length of the length of second positioning area, 5, the second positioning areas 5 greater than first positioning area 4 to the zone of the limited step 11 of interior side's bar 1.

With the double lock tongue door lock with oblique tongue and square tongue is example, the utility model is inserted in three water caltrops of lock body, by the alignment pin 14 of interior side's bar 1 and the spacing salient point 23 of foreign side's bar 2 first positioning area 4 and second positioning area 5 are limited in three water caltrops, wherein, second positioning area 5 will be wherein two water caltrops and Nei Fang bar 1 fix as one, first positioning area 4 fixes as one another one water caltrop and foreign side's bar 2, the external part of interior square bar 1 and foreign side's bar 2 is socketed with handle respectively, rotate one of them handle and can open oblique tongue, rotating another handle can be with advancing to open oblique tongue and square tongue; When lock body need commutate installation, only the utility model need be taken out, commutation is inserted in three water caltrops and is got final product.

The above embodiment, it is preferred embodiments of the present utility model, be not to limit the utility model practical range,, all should comprise in the utility model patent claim so all equivalences of doing according to the described structure of the utility model claim, feature and principle change or modify.

Claims

1, a kind of square bar that is applied to the double lock tongue door lock, be to constitute by interior side's bar and foreign side's bar, it is characterized in that: a wherein end face of interior side's bar is one-body molded plug, the terminal end face with interior bar side of plug forms a limited step, foreign side's bar one end offers the circular hole that cooperates with plug, interior square bar is socketed on foreign side's bar, have a locating hole on one sidewall of interior square bar, retainer spring and alignment pin are installed in the locating hole, foreign side's bar is provided with spacing salient point on the surface near this end of circular hole, spacing salient point is first positioning area to the zone of the circular hole end face of foreign side's bar, alignment pin is second positioning area to the zone of the limited step of interior side's bar, and the length of second positioning area is greater than the length of first positioning area.

2, a kind of square bar that is applied to the double lock tongue door lock according to claim 1 is characterized in that: relative two sides, plug middle part offer groove respectively, and two relative inside walls are respectively arranged with salient point with groove fit to foreign side's bar at the circular hole place.