CN103711369A

CN103711369A - Improved door lock mechanism

Info

Publication number: CN103711369A
Application number: CN201310176868.2A
Authority: CN
Inventors: 徐钜祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-05-14
Filing date: 2013-05-14
Publication date: 2014-04-09

Abstract

The invention relates to an improved door lock mechanism comprising a left lock core body and a right lock core body which are connected. A left lock core shaft and a right lock core shaft are connected in the left lock core body and the right lock core body in an inserted manner respectively, an unlocking poking wheel is arranged between the left lock core body and the right lock core body, the unlocking poking wheel and the lock core shafts are in connected transmission by a transmission block, a balancing spring and a lifting pin are arranged in each lock core shaft, a sliding locking pin is eccentrically arranged in the unlocking poking wheel, two ends of the sliding locking pin are matched with the lifting pins on two sides through a transmission pin in a locking pin hole, two annular grooves are symmetrically arranged on the periphery of the sliding locking pin, two locking grooves are arranged radially in the unlocking poking wheel in an upper-lower manner, a locking spring and a locking pin are assembled in each locking groove, and the locking pins are matched with the annular grooves. By the above design, rotating opening of the unlocking poking wheel can be actively limited when the lock core body on one side is violently damaged, and the improved door lock mechanism has the advantages of compact structure, high antitheft performance, wide application range and high reliability.

Description

A kind of improved door lock mechanism

Technical field

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

The technical solution adopted for the present invention to solve the technical problems 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, between left lock core body and right lock core body, be provided with the thumb wheel of unblanking, unblank between thumb wheel He Zuo lock core shaft by Left Drive piece connection for transmission, unblank between thumb wheel He You lock core shaft by right drive block connection for transmission, in He You lock core shaft of left lock core shaft, be equipped with balancing spring and ejector pin, 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.

On the side face of slide lock rationed marketing, be symmetrical arranged two cannelures, radially offer up and down two lock grooves in the thumb wheel of unblanking, assemble 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 in Zhong Bingyou lock core shaft of lock core shaft, drive rotation, thumb wheel is protruding connect side axially slidably sleeve in the thumb wheel of unblanking to drive the thumb wheel rotation of unblanking.

The present invention 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 object that anti-violence damage is opened, have advantages of that structure design is simply compact, theftproof performance is strong, applied widely, reliability is high.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, detailed content of the present invention is described.

Fig. 1 is decomposition texture schematic diagram of the present invention.

Fig. 2 is assembly structure schematic diagram of the present invention.

Fig. 3 is the view of the present invention's 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 present invention includes connected left lock core body 1 and right lock core body 2, 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, between left lock core body and right lock core body, be provided with the thumb wheel 5 of unblanking, unblank between thumb wheel 5 He Zuo lock core shafts 3 by Left Drive piece 6 connection for transmissions, unblank between thumb wheel 5 He You lock core shafts 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 in Zhong Bingyou lock core shaft of lock core shaft, drive rotation, thumb wheel is protruding connect 19 sides axially slidably sleeve in the thumb wheel 5 of unblanking to drive thumb wheel 5 rotations of unblanking, in 3 He You lock core shafts 4 of left lock core shaft, be equipped with balancing spring 8 and ejector pin 9, 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.On the side face of slide lock rationed marketing 10, be symmetrical arranged two cannelures 13, radially offer up and down two lock grooves 14 in the thumb wheel 5 of unblanking, assemble 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 at the lock body of a side and trundle 12, to be subject to violence damage removed or while dropping, because lock pin 16 is by the locking of 13 pairs of slide lock rationed marketings 10 of cannelure, 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 springs 15.Under normal operating condition, slide lock rationed marketing 10 is unblanked maintaining 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 is 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 one end enter in the lock pin holes 11 in left side, the thumb wheel 5 that makes to unblank is connected locking with fixed block 17, the thumb wheel 5 of unblanking can not rotate, and reaches the object 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, 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 described the preferred embodiment of a kind of improved door lock mechanism of the present invention; not design and the scope of invention are limited; do not departing under the present invention program's prerequisite; various external form modification and improvement that those skilled in the art make technical scheme of the present invention, all should fall into the protection domain of a kind of improved door lock mechanism of the present invention.

Claims

1. an 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, between left lock core body and right lock core body, be provided with the thumb wheel of unblanking, it is characterized in that unblanking between thumb wheel (5) He Zuo lock core shaft (3) by Left Drive piece (6) connection for transmission, unblank between thumb wheel (5) He You lock core shaft (4) by right drive block (7) connection for transmission, in He You lock core shaft of left lock core shaft (3) (4), be equipped with balancing spring (8) and ejector pin (9), 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 in Zhong Bingyou lock core shaft of lock core shaft, drive rotation, thumb wheel is protruding connect (19) side axially slidably sleeve in the thumb wheel of unblanking (5) to drive 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 in Zhong Bingyou lock core shaft of lock core shaft, drive rotation, thumb wheel is protruding connect (19) side axially slidably sleeve in the thumb wheel of unblanking (5) to drive thumb wheel (5) rotation of unblanking.