CN203271290U

CN203271290U - Improved door lock mechanism

Info

Publication number: CN203271290U
Application number: CN2013202602213U
Authority: CN
Inventors: 徐钜祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-05-14
Filing date: 2013-05-14
Publication date: 2013-11-06
Anticipated expiration: 2023-05-14

Abstract

The utility model relates to an improved door lock mechanism. The improved door lock mechanism comprises a left lock cylinder body and a right lock cylinder body, wherein the left lock cylinder body and the right lock cylinder body are connected. A left lock cylinder shaft and a right lock cylinder shaft are connected inside the left lock cylinder body and the right lock cylinder body respectively in an inserting mode. An unlocking shifting wheel is arranged between the left lock cylinder body and the right lock cylinder body. The unlocking shifting wheel and the two lock cylinder shafts are connected in a transmission mode through transmission blocks. The two lock cylinder shafts are respectively provided with a balance spring and an ejector pin. A sliding locking pin is arranged in the unlocking shifting wheel in an eccentric mode. The two ends of the sliding locking pin are matched with ejector pins on the two sides through a transmission shaft inside a locking pin hole. Two annular grooves are symmetrically formed in the circumference face of the sliding locking pin. Two locking grooves are formed in the unlocking shifting wheel in the radial direction in an up-and-down mode. A locking spring and locking pins are arranged in the locking grooves, and the locking pins and the annular grooves are matched. Through the design, when the lock cylinder body on one side is destroyed through violence, the rotation and the starting of the unlocking shifting wheel can be limited automatically, and the improved door lock mechanism has the advantages of being compact in structure, strong in anti-theft performance, wide in application range and high in reliability.

Description

A kind of improved door lock mechanism

Technical field

The utility model relates to a kind of improved door lock mechanism.

Background technology

Existing common door lock, in the situation that a side chain core body suffers violence damage, the robber can by stirring the thumb wheel opening door lock of unblanking, therefore, say that from certain angle its theftproof performance is very imperfect.

Summary of the invention

In prior art, common door is locked in the very imperfect problem of its theftproof performance in the situation that suffers violence damage in order to overcome, the utility model provides a kind of improved door lock mechanism, and the structure design of this improved door lock mechanism is compact, can initiatively limit the rotarily opening of the thumb wheel of unblanking when the violence damage that meets with to a certain degree, strengthened theftproof performance, reliability is high.

the technical scheme that its technical problem that solves the utility model adopts is: comprise connected left lock core body and right lock core body, left lock core body, the relative left lock core shaft of pegging graft respectively in right lock core body, right lock core shaft, be provided with the thumb wheel of unblanking between left lock core body and right lock core body, unblank between thumb wheel and left lock core shaft by Left Drive piece connection for transmission, unblank between thumb wheel and right lock core shaft by right drive block connection for transmission, be equipped with balancing spring and ejector pin in left lock core shaft and right lock core shaft, the eccentric setting slide lock rationed marketing in thumb wheel of unblanking, match with the ejector pin of both sides by the trundle in lock pin holes in the two ends of slide lock rationed marketing.

Be symmetrical arranged two cannelures on the side face of slide lock rationed marketing, radially offer up and down two lock grooves in the thumb wheel of unblanking, assembling locking spring and lock pin in lock groove, lock pin matches with cannelure.

One section of the lock core body of locking pin-and-hole is independently fixed block, and trundle is arranged in lock pin holes, and fixed block is connected with lock core body by screw.

One side of Left Drive piece and right drive block forms that thumb wheel protrudingly connects, opposite side forms that lock core is protruding to be connect, lock core is protruding connect side axially slidably sleeve drive rotation in lock core shaft and by lock core shaft, thumb wheel is protruding connect side axially slidably sleeve in the thumb wheel of unblanking with the driving thumb wheel rotation of unblanking.

The utility model is by above-mentioned specific design, when a side chain core body suffers violence damage, the lock pin of this side will be suppressed and be entered lockhole, drive block and the thumb wheel of unblanking all can not rotate, reach the purpose that anti-violence damage is opened, have advantages of that structure design is simply compact, theftproof performance is strong, applied widely, reliability is high.

Description of drawings

Below in conjunction with drawings and Examples explanation detailed content of the present utility model.

Fig. 1 is decomposition texture schematic diagram of the present utility model.

Fig. 2 is assembly structure schematic diagram of the present utility model.

Fig. 3 is the view of the utility model lock pin when a side chain core body suffers violence damage.

Fig. 4 is the A-A sectional view of Fig. 2.

Fig. 5 is the B-B sectional view of Fig. 3.

The specific embodiment

As shown in the figure, the utility model comprises connected left lock core body 1 and right lock core body 2, and left lock core body 1 and right lock core body 2 can be one-body molded, also can be connected and fixed by connecting rod 21.left lock core body 1, the interior relative left lock core shaft 3 of pegging graft respectively of right lock core body 2, right lock core shaft 4, be provided with the thumb wheel 5 of unblanking between left lock core body and right lock core body, unblank between thumb wheel 5 and left lock core shaft 3 by Left Drive piece 6 connection for transmissions, unblank between thumb wheel 5 and right lock core shaft 4 by right drive block 7 connection for transmissions, the concrete structure of above-mentioned connection for transmission can be that the side at Left Drive piece 6 and right drive block 7 forms that thumb wheel is protruding connects 19, opposite side forms that lock core is protruding connects 20, lock core is protruding connect 20 sides axially slidably sleeve drive rotation in lock core shaft and by lock core shaft, thumb wheel is protruding connect 19 sides axially slidably sleeve in the thumb wheel 5 of unblanking with driving thumb wheel 5 rotations of unblanking, be equipped with balancing spring 8 and ejector pin 9 in left lock core shaft 3 and right lock core shaft 4, the eccentric setting slide lock rationed marketing 10 in thumb wheel 5 of unblanking, match with the ejector pin 9 of both sides by the trundle 12 in lock pin holes 11 in the two ends of slide lock rationed marketing 10.Be symmetrical arranged two cannelures 13 on the side face of slide lock rationed marketing 10, radially offer up and down two lock grooves 14 in the thumb wheel 5 of unblanking, assembling locking spring 15 and lock pin 16 in lock groove 14, lock pin 16 matches with cannelure 13.The effect that lock pin 16 matches with cannelure 13 is that to be subject to violence damage at the lock body of a side and trundle 12 removed or when dropping, because of the locking of lock pin 16 by 13 pairs of slide lock rationed marketings 10 of cannelure, the robber can not attempt to rotate by taking out slide lock rationed marketing 10 thumb wheel 5 of unblanking, and theftproof performance is further strengthened.For convenience of the assembling of whole lock body, one section of the lock core body of locking pin-and-hole 11 can be independently fixed block 17, and trundle 12 is arranged in lock pin holes 11, and fixed block 17 passes through screw 18 and is connected with lock core body or connecting rod 21.In said structure, the distribution of the elastic force of each spring is: balancing spring 8〉locking spring 15.Under normal operating condition, slide lock rationed marketing 10 is unblanked keeping balance in thumb wheel 5 because of acting on of two balancing springs 8.As shown in Figure 3 when left side lock core body 1 during by violence damage, the balancing spring 8 on the right loses support, ejector pin 9, trundle 12 and slide lock rationed marketing 10 that the balancing spring 8 on the right promotes the right are moved to the left, slide lock rationed marketing 10 1 ends enter in the lock pin holes 11 in left side, make the thumb wheel 5 of unblanking be connected locking with fixed block 17, the thumb wheel 5 of unblanking can not rotate, and reaches the purpose that anti-violence is opened.When slide lock rationed marketing 10 moves into place, under the effect of locking spring 15, lock pin 16 enters the cannelure 13 of slide lock rationed marketing 10 in the both sides up and down of slide lock rationed marketing 10, slide lock rationed marketing 10 can not be moved again, under this state, the robber can not attempt to rotate by taking out slide lock rationed marketing 10 thumb wheel 5 of unblanking, and theftproof performance is further strengthened.Above-described embodiment is only that the preferred embodiment to a kind of improved door lock mechanism of the utility model is described; be not that design and scope to utility model limits; under the prerequisite that does not break away from the utility model scheme; various external form modification and improvement that those skilled in the art make the technical solution of the utility model all should fall into the protection domain of a kind of improved door lock mechanism of the utility model.

Claims

1. improved door lock mechanism, comprise connected left lock core body and right lock core body, left lock core body, the relative left lock core shaft of pegging graft respectively in right lock core body, right lock core shaft, be provided with the thumb wheel of unblanking between left lock core body and right lock core body, it is characterized in that unblanking between thumb wheel (5) and left lock core shaft (3) by Left Drive piece (6) connection for transmission, unblank between thumb wheel (5) and right lock core shaft (4) by right drive block (7) connection for transmission, be equipped with balancing spring (8) and ejector pin (9) in left lock core shaft (3) and right lock core shaft (4), the eccentric setting slide lock rationed marketing (10) in thumb wheel (5) of unblanking, match with the ejector pin (9) of both sides by the trundle (12) in lock pin holes (11) in the two ends of slide lock rationed marketing (10).

2. a kind of improved door lock mechanism according to claim 1, it is characterized in that being symmetrical arranged two cannelures (13) on the side face of slide lock rationed marketing (10), unblank radially to offer up and down two lock grooves (14) in thumb wheel (5), assembling locking spring (15) and lock pin (16) in lock groove (14), lock pin (16) matches with cannelure (13).

3. a kind of improved door lock mechanism according to claim 1 and 2, one section of the lock core body that it is characterized in that locking pin-and-hole (11) is independently fixed block (17), trundle (12) is arranged in lock pin holes (11), and fixed block (17) is connected with lock core body by screw (18).

4. a kind of improved door lock mechanism according to claim 1 and 2, a side that it is characterized in that Left Drive piece (6) and right drive block (7) forms that thumb wheel is protruding and connects (19), opposite side and forms that lock core is protruding connects (20), lock core is protruding connect (20) side axially slidably sleeve drive rotation in lock core shaft and by lock core shaft, thumb wheel is protruding connect (19) side axially slidably sleeve in the thumb wheel of unblanking (5) with driving thumb wheel (5) rotation of unblanking.

5. a kind of improved door lock mechanism according to claim 3, a side that it is characterized in that Left Drive piece (6) and right drive block (7) forms that thumb wheel is protruding and connects (19), opposite side and forms that lock core is protruding connects (20), lock core is protruding connect (20) side axially slidably sleeve drive rotation in lock core shaft and by lock core shaft, thumb wheel is protruding connect (19) side axially slidably sleeve in the thumb wheel of unblanking (5) with driving thumb wheel (5) rotation of unblanking.