CN211144040U

CN211144040U - Combined lock

Info

Publication number: CN211144040U
Application number: CN201920670543.2U
Authority: CN
Inventors: 邓长斌; 谢伟华; 郑松青
Original assignee: Baite Fujian Intelligent Equipment Technology Co Ltd
Current assignee: Baite Fujian Intelligent Equipment Technology Co Ltd
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2020-07-31
Anticipated expiration: 2029-05-10

Abstract

The utility model provides a combined lock, which comprises a shell, an electronic lock head, an electronic control circuit and a mechanical switch, wherein the electronic lock head, the electronic control circuit and the mechanical switch are arranged on the shell; the electronic control circuit comprises a first resistor R10, a first capacitor C16, a first diode D4, a first triode Q1, a first relay JD1, a first voltage input end B, a second voltage input end C and a third voltage input end A; the utility model discloses an electronic control circuit can open the electron tapered end, through rotating mechanical lock core makes metal blade rotates, metal blade drives the connecting rod is stirred the button action to open the electron tapered end, machinery promptly unblanks. The combination lock can be opened mechanically when power fails or when an electronic control circuit fails.

Description

Combined lock

Technical Field

The utility model relates to a combination lock.

Background

The existing cabinet unlocking mode is single, and either mechanical unlocking or electronic unlocking is adopted. The mechanical unlocking mode is old, not intelligent enough and not suitable for the requirement of intelligent equipment, and the electronic lock unlocking mode cannot unlock the lock under the abnormal condition of the system when the equipment is powered off, thereby causing certain difficulty to the later maintenance of the equipment.

SUMMERY OF THE UTILITY MODEL

The utility model provides a, can effectively solve above-mentioned problem.

The utility model discloses a realize like this:

A combined lock comprises a shell, an electronic lock head, an electronic control circuit and a mechanical switch, wherein the electronic lock head, the electronic control circuit and the mechanical switch are installed on the shell; the electronic control circuit comprises a first resistor R10, a first capacitor C16, a first diode D4, a first triode Q1, a first relay JD1, a first voltage input end B, a second voltage input end C and a third voltage input end A; the base of the first triode Q1 is connected with the first resistor R10, the first capacitor C16 and the third voltage input end a, the emitter of the first triode Q1 is connected with the first voltage input end B, the first resistor R10 is connected in series with the first voltage input end B, the collector of the first triode Q1 is connected with the cathode of the first diode D4 and one end of the coil of the first relay JD1, the first capacitor C16, the anode of the first diode D4 and the other end of the coil of the first relay JD1 are grounded together, one contact of the first relay JD1 is connected with the second voltage input end C, the other contact of the first relay JD1 is connected with one end of the electronic lock, and the other end of the electronic lock is grounded.

As a further improvement, the electronic control circuit further includes a second resistor R9 connected in series between the third voltage input terminal a and the base of the first transistor Q1.

As a further improvement, the mechanical switch may open the electronic lock through the unlocking slot, the mechanical switch further includes a button, a connecting rod, a boss coaxially disposed with the connecting rod, a spring, a metal blade, and a mechanical lock cylinder sleeved on the connecting rod, the button is accommodated in the unlocking slot, one end of the spring abuts against the boss, the other end of the spring abuts against the top of the button, the mechanical lock cylinder passes through and is rotatably connected to the housing, the metal blade is sleeved on the inner side of the mechanical lock cylinder, the mechanical lock cylinder is used for inserting a key, the metal blade is rotated by rotating the key, and the metal blade drives the connecting rod to slide along the unlocking slot to toggle the button, so as to open the electronic lock.

As a further improvement, the mechanical switch further comprises a limit stop for limiting the metal blade to rotate within a predetermined range.

The utility model has the advantages that: the combined lock can open the electronic lock head through the electronic control circuit, the metal blade rotates through rotating the mechanical lock cylinder, and the metal blade drives the connecting rod to stir the button to act, so that the electronic lock head is opened, namely, the mechanical lock is opened. The combination lock can be opened mechanically when power fails or when an electronic control circuit fails.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of an electronic lock of a combination lock according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an electronic control unit for a combination lock according to an embodiment of the present invention;

Fig. 3 is a schematic diagram of a mechanical structure of a combination lock according to an embodiment of the present invention.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-3, a combination lock is characterized by comprising a housing (1), and an electronic lock head (2), an electronic control circuit (4) and a mechanical switch (3) which are mounted on the housing (1), wherein the electronic lock head (2) is provided with an unlocking groove (26), and the mechanical switch (3) can open the electronic lock head (2) through the unlocking groove (26); the electronic control circuit (4) comprises a first resistor R10, a first capacitor C16, a first diode D4, a first triode Q1, a first relay JD1, a first voltage input end B, a second voltage input end C and a third voltage input end A; the base of the first triode Q1 is connected with the first resistor R10, the first capacitor C16 and the third voltage input end a, the emitter of the first triode Q1 is connected with the first voltage input end B, the first resistor R10 is connected in series with the first voltage input end B, the collector of the first triode Q1 is connected with the cathode of the first diode D4 and one end of the coil of the first relay JD1, the first capacitor C16, the anode of the first diode D4 and the other end of the coil of the first relay JD1 are grounded together, one contact of the first relay JD1 is connected with the second voltage input end C, the other contact of the first relay JD1 is connected with one end of the electronic lock head (2), and the other end of the electronic lock head (2) is grounded.

As a further improvement, the electronic control circuit (4) further comprises a second resistor R9 connected in series between the third voltage input terminal a and the base of the first transistor Q1.

As a further improvement, the third voltage input terminal a voltage is lower than the first voltage input terminal B voltage.

Preferably, the voltage of the first voltage input terminal B is 5V, and the voltage of the second voltage input terminal C is 12V.

As a further improvement, the mechanical switch (3) can open the electronic lock head (2) through the unlocking slot (26), the mechanical switch (3) further comprises a button (31), a connecting rod (32), a boss (34) coaxially arranged with the connecting rod (32), a spring (33), a metal blade (37) and a mechanical lock cylinder (35) sleeved on the connecting rod (32), the button (31) is accommodated in the unlocking slot (26), one end of the spring (33) is abutted against the boss (34), the other end of the spring is abutted against the top of the button (31), the mechanical lock cylinder (35) passes through and is rotatably connected to the shell (1), the metal blade (37) is sleeved on the inner side of the mechanical lock cylinder (35), the mechanical lock cylinder (35) is used for inserting a key, and the key is rotated to rotate the metal blade (37), the metal blade (37) drives the connecting rod (32) to slide along the unlocking groove (26) so as to stir the button (31) to move, and therefore the electronic lock head (2) is opened.

As a further improvement, the mechanical switch (3) further comprises a limit stop sheet (36) for limiting the metal blade (37) to rotate within a preset range.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The combined lock is characterized by comprising a shell (1), an electronic lock head (2), an electronic control circuit (4) and a mechanical switch (3), wherein the electronic lock head (2) is installed on the shell (1), the electronic lock head (2) is provided with an unlocking groove (26), and the mechanical switch (3) can open the electronic lock head (2) through the unlocking groove (26); the electronic control circuit (4) comprises a first resistor R10, a first capacitor C16, a first diode D4, a first triode Q1, a first relay JD1, a first voltage input end B, a second voltage input end C and a third voltage input end A; the base of the first triode Q1 is connected with the first resistor R10, the first capacitor C16 and the third voltage input end a, the emitter of the first triode Q1 is connected with the first voltage input end B, the first resistor R10 is connected in series with the first voltage input end B, the collector of the first triode Q1 is connected with the cathode of the first diode D4 and one end of the coil of the first relay JD1, the first capacitor C16, the anode of the first diode D4 and the other end of the coil of the first relay JD1 are grounded together, one contact of the first relay JD1 is connected with the second voltage input end C, the other contact of the first relay JD1 is connected with one end of the electronic lock head (2), and the other end of the electronic lock head (2) is grounded.

2. A combination lock according to claim 1, wherein the electronic control circuit (4) further comprises a second resistor R9 connected in series between the third voltage input terminal a and the base of the first transistor Q1.

3. The combination lock of claim 1, wherein the mechanical switch (3) can open the electronic lock head (2) through the unlocking slot (26), the mechanical switch (3) further comprises a button (31), a connecting rod (32), a boss (34) coaxially disposed with the connecting rod (32), a spring (33) sleeved on the connecting rod (32), a metal blade (37), and a mechanical lock cylinder (35), the button (31) is accommodated in the unlocking slot (26), one end of the spring (33) abuts against the boss (34), the other end abuts against the top of the button (31), the mechanical lock cylinder (35) passes through and is rotatably connected to the housing (1), the metal blade (37) is sleeved inside the mechanical lock cylinder (35), and the mechanical lock cylinder (35) is used for inserting a key, the metal blade (37) is rotated by rotating the key, the metal blade (37) drives the connecting rod (32) to slide along the unlocking groove (26) so as to stir the button (31) to move, and therefore the electronic lock head (2) is opened.

4. A combination lock according to claim 3, wherein the mechanical switch (3) further comprises a limit stop (36) for limiting the rotation of the metal blade (37) within a predetermined range.