CN103603549B - Multifunctional antitheft lock cylinder and key - Google Patents

Abstract

The invention discloses a multifunctional anti-theft lock core body and a key. The lock core is installed in the central hole of the lock head, and the outer circumference of the lock head is provided with a pin hole and a radial pin hole in the axial direction. The radial pin hole is equipped with a radial lower pin, a radial upper pin and a radial pin spring. There is a boss groove inside the lock cylinder; a boss is arranged axially on the outside of the front lock cylinder, an axial marble groove is opened in the center hole of the front lock cylinder, a circular groove is opened on the front lock cylinder, and an axial opening is opened on the boss There are radially lower pinholes, the radially lower pinholes correspond to the radially upper pinholes, and the radially lower pinholes communicate with the circular groove; there is a pin groove in the central axis of the rear lock core body, and the positioning pin passes through the pinhole and the pinhole. Groove matching, the center hole of the snap ring is evenly distributed along the circumference with square slots for the snap ring; the key post is provided with a serrated section along the axial direction, and the serrated section is matched with the radial lower pins, and the outer surface of the key ring is provided with a bump groove, the key post The bumps are embedded in the bump grooves and move. The invention has the advantages of simple structure, low cost and convenient installation, and can be used for various anti-theft door locks.

Description

Multifunctional anti-theft lock cylinder and key

technical field

The invention relates to a lock core body and a key, in particular to a multifunctional anti-theft lock core body and a key.

Background technique

Locks are widely used in daily life. In the safety standards of locks, the anti-technical opening performance of the lock head/lock cylinder is the short board of its comprehensive safety performance. Nowadays, the anti-technical opening performance of the lock cylinder cannot satisfy people. . At present, most of the lock cylinders used by families and business units are still mainly pin locks. The pin locks have the advantages of simple structure, convenient manufacture and low cost. Due to the relatively simple structure of the more common radial pin lock, criminals can easily use criminal tools such as master keys or hook tools to open the lockset.

Although some new anti-theft lock cylinders have also appeared on the market in recent years, such as:

Patent CN201220471908.7 invented a new structure anti-theft plum blossom lock, which greatly improved the anti-theft of ordinary plum blossom locks, but the structure still has loopholes. Due to factors such as the stability of the spring and the transition of the arc, if a thief Or other people forcibly turn the lock cylinder, the spring may bend, and the pins may roll along the arc edge of the snap ring, causing the pins to still rotate radially along the lock core, and the lock core can be opened, reducing the anti-theft performance of the door lock. CN201210159280.1 invented a new type of anti-theft lock cylinder without slots, which can be drilled at any position on the key without slots to hold pins, so that two keys with the same hole will only be touched by a chance of one in a billion, but this lock The production cost of the core is extremely high, and it is difficult to process the lock core and the key.

There are also locksets such as remote control locks or combination locks at present, but because their cost is relatively high, the structure is complicated, and they are relatively easy to damage, which causes certain inconvenience to users.

Contents of the invention

In order to solve the above-mentioned technical problems and the defects existing in each patent, and to solve the insufficient functions of the prior art, the present invention provides a multi-functional anti-theft lock core body and key, which overcomes the insufficient anti-theft function and inconvenient use of the existing anti-theft door locks. Defects.

Technical scheme of the present invention is:

1. A multifunctional anti-theft lock cylinder body:

It includes a lock head, a lock cylinder and a positioning pin. The lock cylinder is installed in the center hole of the lock head. It is characterized in that: there is a pin hole and a row of evenly spaced radial pin holes along the axial direction on the outer circumference of the lock head. , each radially upper pin hole is sequentially equipped with a radially lower pin, a radially up pin and a radial pin spring from the inside to the outside, and a lock cylinder boss corresponding to the lock cylinder boss of the front lock cylinder body is provided in the center hole of the lock head Groove; the lock core includes a front lock core body, a rear lock core body, a snap ring and an axial marble, the front lock core body is cylindrical, and a lock cylinder boss is arranged axially on the outer side of the front lock core body, and the center of the front lock core body The holes are evenly distributed along the circumference with axial pin grooves, and the end of the front lock core body corresponding to the key is opened with a circular groove. The pin hole corresponds to the radially upper pin hole on the lock head, and the radially lower pin hole communicates with the circular groove; there is a pin groove on the circumferential surface of the middle shaft section of the rear lock core body, and the positioning pin passes through the pin hole to match the pin groove. , the snap ring is stuck in the lock head, the center hole of the snap ring is evenly distributed along the circumference with snap ring square grooves, one end of the axial pins evenly spaced along the circumference is installed on the middle shaft section of the rear lock cylinder, and the other end of the axial pins One end passes through the snap ring square groove and the axial pin groove.

The two ends of the axial pins are cylindrical sections, and the middle end is a square section, and the square section of the axial pins is matched with the square groove of the snap ring.

The diameter of the radially lower pinholes is the same as that of the radially up pinholes on the lock head.

2. A multifunctional anti-theft key:

It includes a key handle, a key ring and a key post. The key post is set in the key ring, and the key handle is connected to the key ring. It is characterized in that: it also includes a sawtooth section; Into the lock head of the lock core body, the sawtooth section is matched with the radially lower pins of the lock core body, the outer surface of the key ring is axially provided with a convex groove, and the rear end of the key column is provided with a key protrusion, and the key The protrusion is embedded in the protrusion groove of the key ring and moves.

The front end of the key column of the key has a hole that matches the rear lock core of the lock core body, the front end of the key column is evenly distributed with annular grooves along the circumference, and the central hole of the key column is provided with a hole that is compatible with the lock core. The axial pins of the core fit into the key pin slots.

The displacement length of the key projection moving in the projection groove of the key ring is greater than the length of the sawtooth segment.

The beneficial effects of the present invention are:

The invention is a multifunctional anti-theft lock with simple structure, convenient operation, low cost, high security, safe and reliable operation.

The key and the lock cylinder are improved, and the ordinary lock cylinder is improved into a radial and axial composite lock cylinder, so that thieves have no way to start at the lock cylinder when stealing; the lock cylinder is equipped with a device to protect the lock cylinder from drilling, which can effectively prevent Thieves or others destroy the lock cylinder to increase the anti-theft coefficient of the anti-theft door, and there is no need to manually close it, so it is easy to use.

The door lock of the invention adopts a novel composite lock core, and the mutual opening rate is extremely low.

Description of drawings

Fig. 1 is a three-dimensional exploded view of the mating connection between the key and the lock cylinder.

Fig. 2 is a three-dimensional schematic diagram of the key post protruding from the key.

Fig. 3 is a three-dimensional schematic diagram of indentation of the key when it is not in use.

Fig. 4 is a half sectional view of the lock head.

Fig. 5 is a front view of the front lock cylinder body.

Fig. 6 is a three-dimensional schematic diagram of the clasp.

Fig. 7 is a three-dimensional schematic diagram of an axial pin.

In the figure: 9. lock head, 9-1. center hole of lock head, 9-2. radially upward pin hole, 9-3. pin hole, 9-4. pin spring, 9-5. snap ring positioning groove, 9 -6. Lock cylinder boss groove, 11. Lock cylinder, 11-1. Lock cylinder boss, 11-2. Front lock cylinder body, 11-3. Axial marble groove, 11-4. Ring groove, 11 -5. Radial lower pinhole, 11-6. Rear lock core body, 11-7. Pin slot, 23. Key, 23-1. Key handle, 23-2. Key ring, 23-3. Key bump , 23-4. Key post, 23-5. Sawtooth section, 24. Locating pin, 25. Radial upper pin, 26. Radial lower pin, 28. Snap ring, 28-1. Snap ring square groove, 28-2 . Snap ring positioning boss, 29. Axial pins.

detailed description

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, the present invention comprises lock head 9, lock cylinder 11 and positioning pin 24; Pin holes 9-3 and a row of evenly spaced radially upper pinholes 9-2, as shown in Figure 4, each radially upper pinhole 9-2 is sequentially equipped with radially lower pinholes 26, radially up pinholes 25 and the radial pin spring 9-4, the lock core boss groove 9-6 corresponding to the lock core boss 11-1 of the front lock core body 11-2 is provided in the lock head center hole 9-1;

As shown in Figure 1, the lock core 11: includes a front lock core body 11-2, a rear lock core body 11-6, a snap ring 28 and an axial pin 29; as shown in Figure 5, the front lock core body 11-2 is Cylindrical, the outer side of the front lock core body 11-2 is axially provided with a lock cylinder boss 11-1, and the center hole of the front lock core body 11-2 is evenly distributed along the circumference with axial pin grooves 11-3, and the front lock core body One end of the body 11-2 corresponding to the key 23 is provided with an annular groove 11-4, and a row of evenly spaced radially lower pinholes 11-5 are axially opened on the lock cylinder boss 11-1, and the radially lower pinholes are 11-5 corresponds to the radially upper marble hole 9-2 on the lock head 9, and the radially lower marble hole 11-5 communicates with the annular groove 11-4; There are pin grooves 11-7, positioning pins 24 pass through pin holes 9-3 and cooperate with pin grooves 11-7, snap rings 28 are stuck in the lock head 9, and the center holes of snap rings 28 are evenly distributed with snap ring square grooves along the circumference 28-1, one end of the axial pins 29 evenly distributed along the circumference is installed on the middle shaft section of the rear lock core body 11-6, and the other end of the axial pins 29 passes through the snap ring square groove 28-1 and the axial pin groove 11 -3; the number of axial pin grooves 11-3 of the front lock core body 11-2 is the same as the number of axial pins 29, as shown in Figure 6 in specific implementation, six grooves and six axial pins can be used Cooperate. Snap ring 28 cooperates with the snap ring positioning groove 9-5 of lock head 9 by snap ring positioning boss 28-2, and snap ring 28 peripheral surfaces are provided with snap ring positioning boss 28-2, and lock head 9 central holes are provided with Axial snap ring positioning groove 9-5 is arranged, and snap ring positioning boss 28-2 cooperates with snap ring positioning groove 9-5 in the lock head 9 central holes.

As shown in FIG. 7 , the two ends of the axial pin 29 are cylindrical sections, and the middle end is a square section. The square section of the axial pin 29 fits into the square groove 28-1 of the snap ring.

The diameter of the radially lower pinhole 11 - 5 is the same as that of the radially up pinhole 9 - 2 on the lock head 9 .

As shown in Fig. 2, Fig. 3, comprise key handle 23-1, key ring 23-2 and key column 23-4, key column 23-4 is enclosed within in key ring 23-2, key handle 23-1 and key ring 23-2 connection; also includes a sawtooth section 23-5, the front end of the key column 23-4 is provided with an axial sawtooth section 23-5, the key column 23-4 is inserted into the lock head 9 of the lock core body, The sawtooth section 23-5 cooperates with the radially lower pin 26 of the lock core body, the outer surface of the key ring 23-2 is axially provided with a projection groove, and the rear end of the key post 23-4 is provided with a key projection 23-3 , The key projection 23-3 is embedded in the projection groove of the key ring 23-2 and moves axially along the key ring 23-2.

Key column 23-4 front end face has the hole that cooperates with the back lock core body 11-6 of described lock core body, and key column 23-4 front end face is evenly distributed with annular groove along the circumference, and key column 23-4 center hole There is a key pin slot which matches the axial pin 29 of the lock core body.

The displacement length of the key protrusion 23-3 moving in the protrusion groove of the key ring 23-2 is greater than the length of the sawtooth segment 23-5.

In the lock body, a left electrode is provided on the end face of the oblique deadbolt rod, and a right electrode is provided on the end face of the plate on the side corresponding to the oblique dead bolt rod; The electrodes do not touch; when the oblique bolt does not extend out of the lock body, the left electrode touches the right electrode;

In the lock core body, pin electrodes are respectively provided on the end faces of the radially lower pinholes 26 of any two radially up pinholes 9-2 in a row of radially up pinholes 9-2, and pin electrodes are provided on the sawtooth section 23-5. Two sawtooth segment electrodes connected to each other, the two sawtooth segment electrodes are respectively matched with the respective marble electrodes; the two sawtooth segment electrodes are conductively connected through the metal conductor of the key itself.

The radially lower pins 26 and the radially upper pins 25 are common pins, and the lock cylinder pins are composed of radially up and down pins 25, 26 and an axial pin 29.

The lock cylinder structure of the present invention adopts a brand-new structure in which pins are arranged axially and radially, that is, a common pin lock is combined with a new plum blossom lock to improve the safety performance of the lock core. The structure of the axial marble and the structure of the general arc groove are improved as follows:

The axial pin 29 includes a square section in the middle and cylindrical sections at both ends, and the arc groove of the snap ring is changed to a square slot to match the square section of the axial pin 29 . In this way, the possibility of brute force unlocking is eliminated, and the arrangement of pins both radially and axially increases the difficulty of illegal unlocking. On the outer cylinder of the lock core 11, there is a lock core boss for placing the row of radially lower pinholes. The radially down pinholes have the same diameter as the radially upper pinholes on the lock head, and their positions match. The radial position of the pins of the lock cylinder is fixed, and an annular groove is opened at the front end of the front lock core body, and the annular groove communicates with the radial pin holes.

And in the matching key, there is a sawtooth section at the front end of the key column that can cooperate with the radial pins of the lock cylinder. An electrode is installed between one section of the serration section and the corresponding radial lower pin. The front end of the key column has a cylindrical hole and a lock. The core column is matched, and the rear end has a projection for pushing and pulling the key column. The projection is embedded in the front and rear closed projection grooves of the key ring. The maximum displacement of the projection is greater than the length of the sawtooth section. The projection moves to the maximum At the front end, the card points at the lower ends of both sides will be stuck in the small card slot, so after the key is extended, the protrusion can only be retracted by pressing the protrusion with hands.

Concrete implementation work process of the present invention is as follows:

During normal state, door lock is locked, and when wanting to open the door, press key projection 23-3, key column 23-3 is released, at this moment key 23 is inserted into lock cylinder 11, and the serrated segment 23-5 on key 23 Cooperate with the radially lower marble 26, push the radially upper pin 25 fully into the radially upper pinhole 9-2 in the lock head 9, and release the locking of the radial pin; the front end cylindrical groove and the groove of the key column 23-4 The rear lock core body 11-6 cooperates with the axial pin 29 to drive the axial pin 29 to move axially. When the notch of the square section of the axial pin 29 is on the same plane as the snap ring 28, the locking of the axial pin can be released. , so that the lock cylinder 11 is unlocked, the lock cylinder 11 can rotate together with the key 23, turn the key 23, the lock cylinder 11 rotates, open the door, pull out the key 23, the use of the radial and axial two-way marble structure in the lock core 11 makes illegal tools The possibility of opening the door is greatly reduced, and the anti-theft performance is increased.

The above specific embodiments are used to explain the present invention, rather than to limit the present invention. Within the spirit of the present invention and the protection scope of the claims, any modification and change made to the present invention will fall into the protection scope of the present invention.

Claims (3)

1. A multi-functional anti-theft key, comprising a key handle (23-1), a key ring (23-2) and a key post (23-4), the key post (23-4) being set on the key ring (23-2) In, the key handle (23-1) is connected with the key ring (23-2); Described key cooperates with lock core body: this lock core body comprises lock head (9), lock core (11) and positioning pin (24), and lock core (11) is installed in the lock end center hole (9) of lock end (9). 9-1), it is characterized in that: the outer circumference of the lock head (9) has a pin hole (9-3) and a row of evenly spaced radial pinholes (9-2) along the axial direction, each diameter The upward pinhole (9-2) is successively equipped with a radially lower pin (26), a radially upper pin (25) and a radial pin spring (9-4) from the inside to the outside. There is a lock cylinder boss groove (9-6) corresponding to the lock cylinder boss (11-1) of the front lock core body (11-2); the lock core (11) includes the front lock core body (11-2), Back lock core body (11-6), snap ring (28) and axial pin (29), front lock core body (11-2) is cylinder shape, and front lock core body (11-2) outer axial setting There is a lock core boss (11-1), and the front lock core body (11-2) central hole is evenly distributed with axial marble grooves (11-3) along the circumference, and the front lock core body (11-2) and the key ( 23) A circular groove (11-4) is opened at the corresponding end, and a row of evenly spaced radially lower pinholes (11-5) are axially opened on the lock cylinder boss (11-1). The hole (11-5) corresponds to the radially upper pin hole (9-2) on the lock head (9), and the radially lower pin hole (11-5) communicates with the annular groove (11-4); the rear lock core body (11-6) There is a pin groove (11-7) on the circumferential surface of the intermediate shaft section, and the positioning pin (24) passes through the pin hole (9-3) to cooperate with the pin groove (11-7), and the snap ring (28 ) is stuck in the lock head (9), the center hole of the snap ring (28) is evenly distributed along the circumference to have a snap ring square groove (28-1), and one end of the axial pins (29) evenly distributed along the circumference is installed on the rear lock On the intermediate shaft section of the core body (11-6), the other end of the axial pin (29) passes through the snap ring square groove (28-1) and the axial pin groove (11-3); The anti-theft key also includes a sawtooth section (23-5); the front end of the key post (23-4) is provided with an axial sawtooth section (23-5), and the key post (23-4) is inserted into the lock core body In the lock head (9), the sawtooth section (23-5) cooperates with the radially lower marble (26) of the lock core body, and the outer surface of the key ring (23-2) is axially provided with a convex groove, and the key The post (23-4) rear end is provided with a key projection (23-3), and the key projection (23-3) is embedded in the projection groove of the key ring (23-2) and moves. 2. A kind of multifunctional anti-theft key according to claim 1, characterized in that: the front end face of the key column (23-4) of the key has a rear lock core body (11-4) which is connected with the lock core body. 6) For the matching hole, the front end of the key post (23-4) is evenly distributed with annular grooves along the circumference, and the central hole of the key post (23-4) is provided with an axial pin (29) to cooperate with the lock core body. key pin slot. 3. A multifunctional anti-theft key according to claim 1, characterized in that: the displacement length of the key projection (23-3) moving in the projection groove of the key ring (23-2) is greater than that of the sawtooth section (23-5) length.