CN2480494Y

CN2480494Y - Lock for theft-proof door

Info

Publication number: CN2480494Y
Application number: CN 01206404
Authority: CN
Inventors: 邓德万; 戴礼周
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-05-31
Filing date: 2001-05-31
Publication date: 2002-03-06
Anticipated expiration: 2011-05-31

Abstract

The utility model relates to a theftproof door lock which is characterized in that an oriented groove 22 and a lock port groove 26 are relatively opened on the door leaf 24 and the door case 23, a lock plate 10 is arranged in the oriented groove 22, the guiding axle 5,19 are fixed on the lock plate 10 and sited on the bracket 3,20 through the axle hole 25 of the door leaf 24, a reversing mechanism for driving the guiding axle 5,19 is equipped between the guiding axle 5,19 and the lock core 12, the pick-proof performance of the theftproof is capable of being greatly enhanced as the theftproof door lock causes the lock plate 10 realizing the plane locking.

Description

Lock for theft-proof door

The utility model relates to a kind of security door locking device.

Existing safe-guard door lock all is lockings, is easily pried open.

The purpose of this utility model is to overcome the deficiencies in the prior art, designs a kind of Lock for theft-proof door with face locking function.

Basic ideas of the present utility model are: on the cork cot of door leaf, be equipped with replace dead bolt or with the jam plate that drives by lock core that dead bolt moves simultaneously, have the fore shaft groove that can cooperate with jam plate in the corresponding position of doorframe.

Its concrete technical scheme is: a kind of Lock for theft-proof door, comprise doorframe, be articulated in the door leaf that lock core is housed of doorframe one side, it is characterized in that vertically having direction recess at the cork cot of door leaf, jam plate is housed in direction recess, there is an end of the axis of guide to be connected on the jam plate, corresponding position at door leaf has axis hole, in door leaf, be fixed with guiding trestle, the axis of guide other end passes the axis hole recoil on guiding trestle, between the axis of guide and lock core, be provided with changement, have the fore shaft groove that inwardly concaves that can cooperate in the corresponding position of doorframe with jam plate.Described lock core comprises the lock core of tripartite lock etc.

Further scheme is: described changement comprises: the dial assembly is housed on lock core, on the dial assembly, be hinged with kinematic link, the other end of kinematic link is articulated in the end that plate is turned in commutation by pin, the centre of gyration that plate is turned in commutation is articulated on the door leaf by fulcrum post, and the other end that changes plate is articulated on the axis of guide by trundle.Described changement also can be other crank-link mechanism.It can be the angle square shape that plate is turned in described commutation, sector shape etc.

Further scheme is: the described axis of guide is divided into the axis of guide and the following axis of guide, and be symmetrically distributed in the upper and lower sides of lock core, corresponding changement also has two, and the last kinematic link of changement and underdrive connecting rod are articulated in the both sides of the dial assembly centre of gyration symmetrically.

Between door leaf and doorframe, day lock and/or ground lock assembly are housed also.Described day lock assembly can be articulated in commutation by last pin and turn on the plate, and ground lock assembly can be articulated in down commutation by following pin and turn on the plate.

Scheme is preferably, and the described axis of guide passes through the rivet rivet clasp on jam plate, and the axis of guide is vertical with jam plate.

In the utility model, lock core can be the lock core of indoor external-open or the lockset of tripartite locking, so that from the cubicle switch door leaf.

The utility model has the advantages that: limit lock dead bolt is a jam plate, and its locking mode is the face locking, thereby has strengthened the pick-proof of security door greatly, has improved the security performance of security door.

Fig. 1 is the sectional view of front view of the present utility model.

Fig. 2 is the A-A sectional view of Fig. 1.

Fig. 3 is the B-B sectional view of Fig. 1.

Below in conjunction with accompanying drawing the utility model is done detailed description.

As Fig. 1, Fig. 2 and Fig. 3, a kind of Lock for theft-proof door, be included in cork cot and have the doorframe 23 of fore shaft groove 26, be articulated in the door leaf that lock core 12 is housed 24 on the another side doorframe 23 relative with cork cot, vertically have the direction recess 22 relative at the cork cot of door leaf 24 with fore shaft groove 26, jam plate 10 is housed in direction recess 22, the end that the end that the last axis of guide 5 and the following axis of guide 19 arranged will be gone up the axis of guide 5 and the following axis of guide 19 by last rivet 2 and following rivet 17 vertically rivet clasp on jam plate 10, be provided with axis hole 25 in the corresponding position of door leaf 24, in door leaf 24, be fixed with guiding trestle 3,20, the axis of

guide

5,19 other ends pass axis hole 25 recoils in guiding trestle 3, on 20.Between the axis of

guide

5,19 and lock core 12, be provided with changement.

Changement comprises among the figure: dial assembly 11 is housed on lock core 12, on dial assembly 11, be hinged with

kinematic link

9,13, the other end of

kinematic link

9,13 is articulated in the end that plate 7,16 is turned in commutation by pin 8,14, the centre of gyration that plate 7,16 is turned in commutation is articulated on the door leaf 24 by fulcrum post 6,15, and the other end that plate 7,16 is turned in commutation is articulated on the axis of

guide

5,19 by trundle 4,18.What plate was turned in its commutation is shaped as angle square shape (i.e. " " shape).

In the present embodiment, turn on the plate 7 in commutation and also to be hinged with a day lock assembly 1, turn on the plate 16 in commutation and also be hinged with ground lock assembly 21 by pin 14 by pin 8.

Its transmission operating principle is: after in the key insertion lock core 12 of lock, the key counter-clockwise direction is rotated, and lock core 12 drive dial assemblies 11 also inhour rotate, and kinematic link 9 and the motion up and down of 13 whiles of underdrive connecting rod are gone up in drive.When last kinematic link 9 moves upward, turn trundle 8 on the plate 7 by last commutation, making commutation turn plate 7 on the one hand rotates around fulcrum post 6, the other end that plate 7 is turned in last commutation then drives trundle 4 moves right the axis of guide 5 under the effect of last guiding trestle 3, and drive jam plate 11 stretches out from direction recess 22 to the right in the fore shaft groove 26 that enters on the doorframe 23 door leaf 24 and doorframe 23 pinnings; On the other hand, last kinematic link 9 drives day lock assembly 1 simultaneously and moves upward and day tapered end of lock assembly 1 is entered in the tapered end hole on the upper ledge of doorframe 23 door leaf 24 and doorframe 23 are pinned when moving upward.When kinematic link 13 moves downward instantly, by trundle 14, making down commutation turn plate 16 on the one hand rotates around fulcrum post 15, the other end that plate 16 is turned in following commutation then drives trundle 18 moves right the axis of guide 19 under the effect of lower carriage 20, and drives jam plate 11 and move right and stretch in the lock-joint groove 26 door leaf 24 and doorframe 23 pinnings; On the other hand, underdrive connecting rod 13 when moving downward, drive simultaneously ground lock assembly 21 move downward make ground lock assembly 21 tapered end from below door leaf 24 and doorframe 23 being pinned.

When the key clockwise direction rotated, all directions of motion were opened door leaf 24 mutually on the contrary with foregoing description.

Claims

1, a kind of Lock for theft-proof door, comprise doorframe (23), be articulated in the door leaf that lock core (12) are housed (24) of doorframe (23) one sides, it is characterized in that vertically having direction recess (22) at the cork cot of door leaf (24), jam plate (10) is housed in direction recess (22), the axis of guide (5 is arranged, 19) a end is connected on the jam plate (10), have axis hole (25) in the corresponding position of door leaf (24), in door leaf (24), be fixed with guiding trestle (3,20), the axis of guide (5,19) other end passes axis hole (25) recoil in guiding trestle (3,20) on, at the axis of guide (5,19) and between the lock core (12) be provided with changement, have the fore shaft groove (26) that inwardly concaves that can cooperate in the corresponding position of doorframe (23) with jam plate (10).

2, Lock for theft-proof door according to claim 1, it is characterized in that described changement comprises: dial assembly (11) is housed on lock core (12), on dial assembly (11), be hinged with kinematic link (9,13), the other end of kinematic link (9,13) is articulated in the end that plate (7,16) are turned in commutation by pin (8,14), the centre of gyration that plate (7,16) is turned in commutation is articulated on the door leaf (24) by fulcrum post (6,15), and the other end that changes plate (7,16) is articulated on the axis of guide (5,19) by trundle (4,18).

3, according to the described Lock for theft-proof door of claim 2, what it is characterized in that described commutation turns plate (7,16) is shaped as the angle square shape.

4, Lock for theft-proof door according to claim 1, it is characterized in that the described axis of guide (5,19) is divided into the axis of guide (5) and the following axis of guide (19), and be symmetrically distributed in the upper and lower sides of lock core (12), corresponding changement also has two, and the last kinematic link (9) of changement and underdrive connecting rod (13) are articulated in the both sides of dial assembly (11) centre of gyration symmetrically.

5, Lock for theft-proof door according to claim 1, its feature also is equipped with world lock assembly (1,21) between door leaf (24) and doorframe (23).

6, according to claim 2 or 5 described Lock for theft-proof door, it is characterized in that described day lock assembly (1) is articulated in commutation by last pin (8) and turns on the plate (7), ground lock assembly (21) cuts with scissors to change in following the commutation by pin (14) down and turns on the plate (16).

7,, it is characterized in that the described axis of guide (5,19) passes through rivet (2,17) rivet clasp on jam plate (10), and the axis of guide (5,19) is vertical with jam plate (10) according to the described Lock for theft-proof door of claim 1.