CN2035369U - Double theft-proof door lock - Google Patents

Abstract

The utility model discloses a double theft-proof door lock with mechanical secret code and latch structure. A cam wheel (26) and a slide block (22) mechanism are adopted by the control device. The elastic stationary fit is adopted by the position and the adjustment between the secret code sheet (8) and the secret code sheet seat (9). An adjusting sleeve (16) is arranged between the lock head (15) and the lock head pressing sleeve (17). The lock head screw bolt (18) is connected with the lock head (15) and the lock head pressing sleeve (17) by passing through the adjusting sleeve (16) to fix the lock head. The double theft-proof door lock has the advantages of high safety and security degree, large secret code volume, convenient modulation while in use, many safety ways and use functions, and simple and compact structure. The double theft-proof door lock can be made by improving the ordinary latch door lock. The double theft-proof door lock is widely applied to various house doors and entrance doors, such as dwelling houses, and enterprises and institutions.

Description

Double theft-proof door lock

The utility model belongs to mechanical door lock, has mechanical cipher and billiards structure dual installation.

Existing door lock all is the mechanical lock of billiards structure generally, as long as there is key just can open, and because the tartar limited amount, every group only 6000～8000, so security performance is poor.Chinese patent ZL85201411 " family expenses coded lock " is simple in structure, but will reach its desirable secrecy, must local the dispersion several knobs and code component thereof be installed in several places on door, and the user uses inconvenience and influences outward appearance.Chinese patent ZL86204647 " a kind of mechanical cipher door lock " belongs to the single anti-theft feature that only possesses encryption apparatus separately again.In addition, some electronic lock because of circuit complicated and must electricity consumption etc. reason also be difficult to promote the use of.Though the lock on the safety cabinet has password and billiards structure simultaneously, volume is big, and structure is not compact, opens inconvenience, is not suitable for general door and uses.

Advantages such as the purpose of this utility model is to overcome above-mentioned weak point, and a kind of double anti-theft door lock that integrates mechanical cipher device and billiards structure is provided, and has the secrecy height, and password capable of being combined is many, and easy to use, applicability is wide.

The purpose of this utility model reaches by following measure: based on parts such as the tapered end of general pin tumbler lock, lock body, handle, stop button, dead bolt assemblies, newly design controlling organization, cryptographic system and tapered end erecting device.The controlling organization of control dead bolt assembly motion adopts cam slide mechanism, form by cam and sliding piece, revolving fragment, center, slide block and take-up housing, link rod and slip cap, sliding block spring and link rod spring, central axle sleeve and cam and sliding piece stationary fit, be contained on the lock body bonnet with revolving fragment back activity riveting movingly, have a power to point to the sliding block spring that makes slide block be close to cam and connect with slide block, a power is pointed to and is made link rod keep connecting with link rod with the link rod spring of slide block on same straight line.The oriented respectively upper and lower pin of lifting one's head of upper and lower password bar in the cryptographic system, middle password bar has two-sided pin of lifting one's head, and the password bar connects with dowel fixes, and cipher chips has breach, utilizes the elastic force stationary fit between cipher chips and the password bar.Between tapered end and tapered end gland, have one be used to regulate the two distance, be spun on the threaded adjusting cover on the positioning sleeve, the tapered end bolt passes the threaded adjusting cover and connects tapered end and tapered end gland with fixing tapered end.

Utilizing the elastic force stationary fit between cipher chips and the password bar, can be to have opening on cipher chips, utilize elastic force that opening produces with the cipher chips cuff on the step of password bar; Also opening not on the cipher chips, and on cipher chips, install disk spring additional.

For making mechanism compacter, the center line of cipher chips gap position and slide block and cam can depart from cipher chips center line (referring to that as shown in Figure 4 driving and driven gear centre line does not overlap with slide block, cam and breach center line but be parallel).

Given embodiment further describes details of the present utility model below in conjunction with accompanying drawing.

Fig. 1, Fig. 2 are respectively master, the vertical view of the utility model outward appearance;

Fig. 3 is an A-A cutaway view Amplified image among Fig. 1;

Fig. 4 is a B-B cutaway view Amplified image among Fig. 2;

Fig. 5 is a tapered end gland enlarged drawing.

Referring to Fig. 1, Fig. 2, Fig. 3, coupling sleeve (3) and positioning sleeve (19) movingly, fixedly connected with driving gear (13) in its lower end, indicator board (2) installation figure disc (1) is passed in the upper end, its installing and locating can adopt thin key (14) or similar mode.Minor axis (21) is coaxially installed with driven gear (10) and two the password bars (9) with driving gear (13) engagement, cipher chips seat stand rank are wherein arranged on the driven gear (10), Gu it also serves as a password bar, have three password bars altogether.All be fixed with pin (11) on these three password bars, stir adjacent password bar when being used for sign indicating number.The annular pin sheet (8) that three band breach (37) are arranged.Cipher chips among the accompanying drawing embodiment (8) also has opening (36), makes cipher chips have radially elasticity, and cuff can rotate with it when password bar (9) is gone up, but also can regulate the cuff orientation of cipher chips on the password bar to obtain new password combination.When stirring, when the breach (37) of three cipher chips alignd, slide block (22) can be retracted into, thereby lock can be opened.Relative password figure and the mark of being carved with on cipher chips and the password bar.

In conjunction with Fig. 2, Fig. 3, Fig. 4, adopt thread connection between positioning sleeve (19) top and the regulating sleeve (16), the bottom is in axial sliding by feather key with tapered end gland (17) and cooperates, and makes the tapered end gland (17) can only axial location and can not rotate.Tapered end (15) is contained in the inside of coupling sleeve (3), passes regulating sleeve (16) with tapered end bolt (18) tapered end (15) and tapered end gland (17) are coupled together with fixing tapered end (15).The length of regulating regulating sleeve (16) screw-in positioning sleeve (19) can adapt to the thickness of door and the end play of control number code-disc (1), makes it to rotate flexibly.The slide block seat of honour (12) and following of slide block (33) have also been fixed in the inside left-end of password box protecgulum (4), the middle slide block (22) of installing, sliding block spring (34) makes it always rely on cam for slide block (22) through pinning (35) application of force, and link rod spring (32) application of force makes link rod maintenance and slide block at same straight line.Roller cover (24) on the link rod (23) is always contiguous with cam (26).

Cam (26) with sliding piece (27) be connected or moulding form, it and revolving fragment (28) and central axle sleeve (29) movingly, central axle sleeve (29) activity riveting is contained on the lock body bonnet (31).Cam (26) is in a certain angle with its center tang groove.

The utility model is realized the principle and the using method of double anti-theft function: tapered end tang (30) drives and then rotation of cam (26) during key, when the anticlockwise rotation of key, desire to make the rising point of cam (26) above the roller cover (24) on the link rod (23), must align password when then unblanking, the left end of slide block (22) can be retracted in the breach (37) on three cipher chips (11) simultaneously, could allow the rising point of cam (26) by roller cover (24), Here it is has enabled the process of unblanking behind the encryption apparatus, but lockset is opening as shown in Figure 4.If instead password does not align, the rising point of cam (26) will can not be organized by roller cover (33), pivot pin (25) and link rod (23) to moving to left owing to slide block (22) so, it can't be passed through, though key is arranged in this case, also still lockset can not be opened, thus the specific function of realization double anti-theft.

Tapered end of the present utility model (15) is to adopt lock core can rotate 360 ° standard tapered end, and the structure of lock body, handle, stop button and dead bolt assembly (7) and effect are all phase-locked together with common door, wherein only change the screw hole installation site of lock body (6).

Utility model has following use function:

One, anti-prying: after door was closed, outdoor people can't insert crack between a door and its frame with foreign matter, can prevent that dead bolt from being pried open.

Two, indoor to outdoor insurance: close behind the door indoor, outdoor human key also can't be opened lock.

Three, to the insurance of outdoor double anti-theft: enable encryption apparatus and close behind the door, then outdoor people must align earlier password again with key operated could the lock unlatching, but do not hinder indoor people to open the door and come in and go out.

Four, outdoor to indoor insurance: at the outdoor encryption apparatus of enabling at closing time, then indoor people can't open lock, and outdoor people could open with key after also must aligning password again.

The utlity model has following advantage:

1, secrecy height---encryption apparatus is only handled 1,000,000 groups of different passwords capable of being combined with a figure disc, and this encryption apparatus has no feel in operating process, and can eradicate the threat of MASTERKRY.

If 2, easy to use---do not enable encryption apparatus during use, just can be as using the common spring door lock can open with key operated; When closing or must be when enabling encryption apparatus to password; The change of password and combination can be adjusted selection arbitrarily by the user.

3, wide adaptability---be suitable for being installed on the various doors of dwelling house, factory, ore deposit, enterprise and institution and the gate and use, no matter " inward ", " outward opening door " or " double door " are all applicable.The designed encryption apparatus of the utility model can cooperate with existing various door locks simultaneously, so compliance is very extensive.

4, simple in structure, make easily.And part is based on stamping parts, and general Lock Factory or other small-sized machine factories, hardware factory all can produce.

Claims (4)

1, a kind of by tapered end, lock body, figure disc, handle, stop button, the basic element of character and controlling organizations such as dead bolt assembly, cryptographic system, the double anti-theft door lock that the tapered end installing mechanism is formed, cryptographic system is made of three groups of cipher chips and corresponding password bar and pin, middle password bar has two-sided pin of lifting one's head, on, following password bar has respectively downwards, on the pin of lifting one's head, of the present utility model being characterised in that: controlling organization adopts the cam slide structure, central axle sleeve and cam and sliding piece stationary fit, be contained on the lock body bonnet with revolving fragment back activity riveting movingly, have a power to point to the sliding block spring that makes slide block be close to cam and connect with slide block, a power is pointed to and is made link rod keep connecting with link rod with the collinear link rod spring of slide block; Each password bar is connected with dowel fixes, and cipher chips has breach, utilizes the elastic force stationary fit between cipher chips and the password bar; Pass regulating sleeve with the tapered end bolt and connect tapered end and tapered end gland with fixing tapered end, between tapered end and tapered end gland, have one be used to regulate the two distance, be spun on the threaded adjusting cover on the positioning sleeve.

2, door lock according to claim 1 is characterized in that utilizing the elastic force stationary fit between said cipher chips and the password bar, is to have opening on the cipher chips, and cipher chips utilizes the elastic force cuff of opening generation on the password bar.

3, door lock according to claim 1 is characterized in that said elastic force stationary fit is meant that cipher chips is enclosed within the back disk spring that adds on the password bar on cipher chips.

4,, it is characterized in that the cipher chips gap position departs from the cipher chips center line according to claim 1 or 2 or 3 described door locks.

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