CN102587740A - electronic lock head - Google Patents

Abstract

The invention discloses a lock head of an electronic lock, which comprises a key assembly, a lock head shell and a lock core arranged in the lock head shell, wherein the key assembly comprises a power supply, a key and a key circuit board, and a key code is stored in the key circuit board; the key is provided with a key electric contact; the electronic lock is provided with two lines of prevention of unlocking codes and key tooth holes, and the lock cannot be unlocked under the pure technical condition of the electronic lock.

Description

electronic lock head

technical field

The invention relates to a lock, in particular to a lock head of an electronic lock.

Background technique

The traditional mechanical lock, including the lock assembly and the key, realizes unlocking through the cooperation of the key and the keyhole of the lock assembly. Since the tooth pattern of the key is easy to copy, as long as the tooth pattern of the key is engaged with the tooth pattern in the mechanical lock, the lock can be unlocked ; Or pry the block in the lock head to open it, which is not safe.

Contents of the invention

In order to overcome the deficiencies of the prior art, the present invention provides a safe and stable electronic lock head.

The technical solution adopted by the present invention to solve its technical problems is:

An electronic lock cylinder, comprising a key assembly, a cylinder housing and a lock cylinder installed in the housing, the key assembly includes a power supply, a key and a key circuit board electrically connected to the power supply, the key The key code is stored in the circuit board; the key is provided with a key electrical contact electrically connected to the power supply and the key circuit board; a lock circuit board is installed in the lock housing and is electrically connected to the lock circuit board. The connected executive mechanism, the lock head circuit board stores the lock head code that matches the key code, and the lock cylinder and the lock head shell are provided with lock head electric contacts that can be in electrical contact with the key electric contacts. point, the electric contact of the lock head is electrically connected to the circuit board of the lock head. After the key is pulled out or the inserted key does not match, the actuator blocks the lock cylinder. After the matching key is inserted, the electric contact of the key is connected to the The electric contact of the lock head is connected to the circuit, and the code of the lock head and the key code are matched at the same time. After the code is successfully matched, a signal is sent to open the actuator, and the actuator acts to release the lock cylinder, and the lock can be unlocked by turning the lock cylinder.

As a further improvement of the present invention, the actuator is an automatically resettable electromagnet.

The key is electrically connected to the power supply and the key circuit board; the electric contact of the lock head includes a first thimble and a second thimble arranged on the lock cylinder and a third thimble arranged on the lock cylinder and the fourth thimble, the third thimble and the fourth thimble are connected to the first thimble, the second thimble and the lock circuit board respectively, and the key electrical contacts include contacts on the surface of the key corresponding to the first thimble and the second thimble first electrode and second electrode.

The lock core is provided with a locking hole, and a floating ball is installed in the locking hole, and the inner wall of the lock head shell is provided with a locking depression corresponding to the floating ball, and the key is provided with a floating ball corresponding to the floating ball. The card position corresponding to the bead.

The lock cylinder is provided with a positioning hole, and a positioning spring and a positioning bead are installed in the positioning hole, and a positioning concave point corresponding to the positioning bead is provided on the inner wall of the lock cylinder.

The beneficial effect of the present invention is: key code is stored in the key circuit board of the key assembly of the present invention, and lock code is also stored in the lock circuit board in the lock head, and key code and lock head code correspond one by one, and key code and lock head code are one-to-one correspondence. The lock can only be opened when the code of the lock head matches, which makes the security measures more stable and safe. Because the electronic lock head is equipped with two lines of defense, the code for unlocking and the key tooth hole, and the electronic lock head cannot open the lock in the case of pure technology. Compared with the mechanical lock head, the electronic lock head of the present invention has no mutual opening rate and has a higher safety factor.

Description of drawings

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

Fig. 1 is a structural schematic diagram of the present invention.

Detailed ways

With reference to Fig. 1, a kind of electronic lock lock head comprises key assembly, lock head housing 105 and the lock core 102 that is installed in described lock head housing 105, and described key assembly includes power supply, key 118 and is electrically connected with described power supply The key circuit board 109, the key code is stored in the key circuit board 109. The key 118 is provided with a key electrical contact electrically connected with the power supply and the key circuit board 109 .

A lock circuit board 111 and an actuator electrically connected to the lock circuit board 111 are installed in the lock housing 105, and a lock code matching the key code is stored in the lock circuit board 111, Due to the flexible setting of key codes and lock head codes and the large amount of information, one-to-one correspondence can be achieved without repetition.

The lock cylinder 102 and the lock shell 105 are provided with lock electric contacts which can be in electrical contact with the key electric contacts, and the lock electric contacts are electrically connected to the lock circuit board 111 .

After the key is pulled out or the inserted key does not match, the actuator blocks the lock cylinder 102, and the lock cylinder cannot be rotated, so the lock cannot be unlocked. After the matching key is inserted, the electric contact of the key and the electric contact of the lock head are connected to the circuit At the same time, the code of the lock head and the code of the key are coded. After the successful code matching, a signal is sent to open the actuator.

The actuator can be a part driven by a motor. In this embodiment, the actuator is an electromagnet that can be automatically reset. The automatic reset of the solenoid valve is realized by installing a spring on the armature of the solenoid valve. Using the solenoid valve makes the actuator simple. ,reliable.

Described power source comprises battery box and the battery 115 that is installed in described battery box, and battery box is fixed on the end of key, and this battery box is made of battery box lower cover 117 and battery box upper cover 116, and key circuit board 109 is also installed on In the battery box, based on the principle of the present invention, the power supply can also be installed in the lock head, and no power supply is provided on the key 118, but due to the limited space of the lock head, installing the power supply will inevitably lead to an increase in the volume of the lock head, and it is inconvenient To replace the battery, the present invention therefore mounts the power supply on the key 118.

On the one hand, the electric contact of the lock head and the key electric contact must transmit electric energy, and on the other hand, it needs to transmit the coding information, so that the code of the lock head and the key code can be matched.

In this embodiment, the key 118 is electrically connected to the power supply and the key circuit board 109, and the conductivity of the metal key 118, the lock cylinder 102, and the lock shell 105 is used as a common electrode (negative pole) of the two circuits, and the key circuit board 109 is used as a common electrode (negative pole) of the two circuits. The contact and the lock electric contact are used as another electrode (positive pole) to form two electric circuits.

The lock electric contact includes a first thimble 103a and a second thimble 103b arranged on the lock cylinder 102 and a third thimble 103a' and a fourth thimble 103b' arranged on the lock shell 105. The three thimbles 103a' and the fourth thimble 103b' communicate with the first thimble 103a, the second thimble 103b and the lock circuit board 111 respectively. 103b corresponds to the first electrode 106a and the second electrode 106b, and the first electrode 106a and the second electrode 106b are insulated from the key 118 .

Between the first thimble 103a, the second thimble 103b and the lock core 102, between the third thimble 103a', the fourth thimble 103b' and the lock shell 105 should also be insulated, therefore, between the first thimble 103a, the second thimble 103b A first insulating sleeve 104a and a second insulating sleeve 104b are respectively sleeved on the outside, and a third insulating sleeve 104a' and a fourth insulating sleeve 104b' are respectively sleeved on the outside of the third thimble 103a' and the fourth thimble 103b'.

The first electrode 106a, the first thimble 103a, the third thimble 103a', the key 118, the lock core 102, and the lock shell 105 form a loop to communicate with the power supply and the lock circuit board 111, the second electrode 106b, the second thimble 103b, the first The four thimbles 103b', the key 118, the lock cylinder 102, and the lock shell 105 form another circuit connecting the key circuit board 109 and the lock circuit board 111.

For the convenience of installation, the lock housing 105 is provided with a gap 110, and a fixing block 113 is installed in the gap 110 through a screw 114. The electromagnet 112 and the lock circuit board 111 are installed on the lock housing 105 and the fixing block 113. within the space formed.

The lock core 102 is provided with a locking hole 120, and a floating ball 108 is installed in the locking hole 120, and the inner wall of the lock housing 105 is provided with a locking depression corresponding to the floating ball 108 (not shown in the figure). indicated), the key 118 is provided with a detent corresponding to the floating ball 108 (not shown in the figure).

In the locked position of the key, the lock hole 120 is aligned with the lock recess, and the surface of the key squeezes the upper end of the floating ball 108 into the lock recess, and the key can be pulled out or inserted. When the lock cylinder is turned, the lock hole 120 deviates from The lock position is recessed, and the inwall of the lock head housing 105 squeezes the floating ball 108, so that the floating ball 108 is stuck in the locking position of the key 118, and the key cannot be pulled out, which prevents the key from slipping out during the rotation.

The lock core 102 is provided with a positioning hole 121, a positioning spring 101 and a positioning bead 100 are installed in the positioning hole 121, and a positioning concave point corresponding to the positioning bead 100 is provided on the inner wall of the lock cylinder 105. During the rotation of the lock core 102, the positioning bead 100 is stuck in the positioning recess, which plays a role in positioning the lock core. At the position of the lock core, the electric contact of the key can be connected with the electric contact of the lock head, which is convenient for unlocking.

Because the key code of the present invention corresponds to the lock head code one by one, the lock can only be opened when the key code matches the lock head code, making the security measures more stable and safe. The locking mechanism adopts an electromagnet, which makes the lock simple in structure, safe and reliable, Since the electronic lock is provided with two lines of defense, the unlock code and the key tooth hole, and the electronic lock cannot be opened under the pure technology, compared with the mechanical lock, the electronic lock of the present invention does not open each other. rate, the safety factor is higher.

Claims (5)

1. An electronic lock head, comprising a key assembly, a lock housing (105) and a lock cylinder (102) installed in the lock housing (105), characterized in that: the key assembly includes a power supply, a key (118) and the key circuit board (109) electrically connected with the power supply, the key code is stored in the key circuit board (109); the key (118) is provided with the power supply and the key circuit board (109 ) the key electric contacts electrically connected; the lock circuit board (111) and the actuator electrically connected to the lock circuit board (111) are installed in the lock housing (105), and the lock circuit board (111) stores a lock head code matching the key code, and the lock cylinder (102) and the lock head shell (105) are provided with lock head electrical contacts that can be in electrical contact with the key electrical contacts, The electric contacts of the lock head are electrically connected to the lock head circuit board (111). After the key is pulled out or the inserted key does not match, the actuator blocks the lock cylinder (102). After the matched key is inserted, the key The electric contact and the electric contact of the lock head are connected to the circuit, and the code of the lock head and the key code are matched at the same time. After the code is successfully matched, a signal is sent to open the actuator, and the actuator moves to release the lock cylinder (102). Turning the lock cylinder (102) Can be unlocked. 2. The electronic lock head according to claim 1, characterized in that the actuator is an electromagnet (112) that can be automatically reset. 3. The electronic lock head according to claim 1, characterized in that the key (118) is electrically connected to the power supply and the key circuit board (109); the electric contact of the lock head includes a The first thimble (103a) and the second thimble (103b) on the core (102) and the third thimble (103a') and the fourth thimble (103b') arranged on the lock shell (105), the The third thimble (103a') and the fourth thimble (103b') can respectively communicate with the first thimble (103a), the second thimble (103b) and the lock circuit board (111). (118) Surface, first electrode (106a) and second electrode (106b) corresponding to first thimble (103a) and second thimble (103b). 4. The electronic lock head according to claim 1, characterized in that the lock cylinder (102) is provided with a locking hole (120), and a floating ball (108) is installed in the locking hole (120), The inner wall of the lock housing (105) is provided with a locking recess corresponding to the floating ball (108); the key is provided with a locking position corresponding to the floating ball (108). 5. The electronic lock head according to claim 1, characterized in that the lock cylinder (102) is provided with a positioning hole (121), and a positioning spring (101) and a positioning bead are installed in the positioning hole (121) (100), the inner wall of the lock housing (105) is provided with a positioning concave point corresponding to the positioning bead (100).

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