CN107035242A - Motor-driven electronic locks for express cabinets - Google Patents

Abstract

The invention relates to the field of electronic locks, in particular to a motor-driven electronic lock of an express cabinet, which comprises a lock shell, a lock nose, a power assembly and a linkage assembly, wherein the lock nose can be inserted into or separated from the lock shell to lock or unlock a door of the express cabinet; the power assembly comprises a motor, a turbine connected to the output end of the motor, a first reduction gear meshed with the turbine, a second reduction gear meshed with the first reduction gear, a cam gear meshed with the second reduction gear, a positioning switch capable of being connected or disconnected with the cam gear and a PCB used for controlling the connection or disconnection of the positioning switch, wherein the cam gear, the second reduction gear and the first reduction gear are rotatably mounted on the lock shell. The invention has low power consumption, large push-pull force, good safety, simple structure and convenient use.

Description

Motor-driven electronic locks for express cabinets

technical field

The invention relates to the field of electronic locks, in particular to a motor-driven electronic lock for an express cabinet.

Background technique

The cabinet locks used in storage boxes, lockers, and express cabinets are all traditional mechanical cabinet locks that open the door with a key, and most of the lock cylinders are general-purpose or simple. A key or similar tool can Open all the cabinets and make the locks useless. The conventional cabinet lock is a simple purely mechanical structure, which cannot realize intelligent control, let alone remote management and remote monitoring. Today, with the increasing degree of informatization and the increasing importance of data security, this kind of mechanical cabinet lock There are high security risks and management blind spots in the lock, and many cabinet security incidents have occurred.

For solving this problem, electronic lock arises at the historic moment. Electronic locks are different from traditional mechanical locks, using non-mechanical keys such as passwords, random codes, QR codes, fingerprint identification, iris identification, magnetic cards, radio frequency cards, TM cards, etc. as user identification IDs to realize the opening and closing of locks , is a more intelligent lock in terms of user identification, security and management. Due to its safety, convenience and technological advancement, it is widely used in various storage boxes and lockers.

Traditional electronic locks, on the one hand, the linkage components that support the electronic lock switch generally include deadbolt, electromagnet, return spring, action rod, connecting screw, etc. Inconvenient, and only through the suction and thrust of the electromagnet to realize the opening or locking of the electronic lock, the safety of the electronic lock is not high; on the other hand, in the locked state, the dead bolt directly contacts with the moving iron core, and the moving The iron core will be subjected to the radial shear stress given by the lock tongue, which will easily break the moving iron core, so that the safety and anti-theft performance of the electronic lock cannot be reliably guaranteed; the third aspect is that most of them are driven by electromagnets and consume a lot of power. , The push-pull force is small, and it is inconvenient to use.

Contents of the invention

Based on this, it is necessary to provide a motor-driven electronic lock for express cabinets with low power consumption, high push-pull force, good security, simple structure, and easy to use.

The purpose of the present invention can be achieved through the following technical solutions: the motor-driven electronic lock of the express cabinet, including the lock housing, the lock nose that can be inserted into or separated from the lock housing to realize the locking or opening of the box door, and drive the lock nose to insert or break away from the lock The power assembly of the shell, the linkage assembly connected between the power assembly and the lock nose to drive the lock nose to insert or break away from the lock housing, the power assembly and the linkage assembly are installed on the lock housing; there is a function on the lock housing in the lock slot for accommodating the lock nose; the power assembly includes a motor, a worm gear connected to the output end of the motor, a first reduction gear gear connected to the worm gear, a second reduction gear gear connected to the first reduction gear, and a second reduction gear gear connected to the second gear. The cam gear of the reduction gear, the positioning switch that can be connected or disconnected with the cam gear, the PCB board used to control the connection or disconnection of the positioning switch, the second reduction gear is located between the first reduction gear and the cam gear, the The cam gear, the second reduction gear and the first reduction gear are all rotatably mounted on the lock housing.

A further improvement to the above technical solution is that the linkage assembly includes a movably connected connecting rod and a locking hook, the connecting rod is rotatably mounted on the lock housing through a first rivet, and the connecting rod includes a The first end and the second end on both sides of the rivet, the first end is protruded with a transmission part connected to the cam gear to transmit power, the second end is movably connected with the lock hook; the lock hook passes through the second rivet It is rotatably installed on the lock case, the lock hook includes a front end and a rear end located on both sides of the second rivet, the front end is movably connected with the connecting rod, and the rear end is in the shape of a U-shaped groove to hook the lock nose.

A further improvement to the above technical solution is that the second end of the connecting rod is provided with a convex part, the front end of the lock hook is arc-shaped and provided with a concave part, and the convex part and the concave part can be engaged with each other so that the connecting rod Connect with shackle.

A further improvement to the above technical solution is that the linkage assembly also includes a push rod that provides auxiliary force for the lock hook, and the push rod is installed on the side of the lock groove away from the lock nose to push the lock nose, and the push rod The end of the rod away from the lock groove is sheathed with a push rod spring for providing elastic force.

A further improvement to the above technical solution is that a travel switch is also provided on the lock housing, and when the motor-driven electronic lock of the express cabinet is in the locked state, the contact piece of the travel switch contacts the push rod, and When the motor-driven electronic lock of the express cabinet is in the unlocked state, the contact piece of the travel switch is disconnected from the push rod.

A further improvement to the above technical solution is that an LED lighting lamp is also provided on the lock case.

A further improvement to the above technical solution is that the lock nose includes a mounting part and a lock part, and the lock part can extend into the lock groove and be hooked to the U-shaped groove of the lock hook.

A further improvement to the above technical solution is that the lock nose is installed on the box door through the installation part, and the lock housing is installed on the box body.

The beneficial effects of the present invention are:

1. On the one hand, the present invention drives the linkage assembly to rotate through the power assembly to insert or disengage the lock nose from the lock housing to lock or open the door, and both the power assembly and the linkage assembly are installed on the lock housing, with a simple and compact structure. Easy to use; secondly, the power is provided by the motor, the power consumption is low, the driving current is 300mA/12V, and when the electromagnet is used to provide power, the driving current is 2A/12V, the power consumption can be greatly reduced by using the motor drive, and the push-pull force is large , can quickly realize the opening and closing of the box door. When the motor is used, the driving force and reverse pulling force of the power component acting on the box door can reach 20Kg, but when the electromagnet is used to provide power, the pushing and pulling force is only 5Kg; the third aspect , The power assembly adopts the turbine, the first reduction gear, the second reduction gear and the cam gear to transmit power, and a positioning switch is set to control the rotation degree of the cam gear. The control is precise, which is conducive to improving the safety of the electronic lock.

2. The linkage assembly includes a movably connected connecting rod and a lock hook. The connecting rod is rotatably mounted on the lock housing through the first rivet. The connecting rod includes a first end and a second end located on both sides of the first rivet. The first end There is a transmission part connected to the cam gear to transmit power, and the second end is movably connected with the locking hook; the locking hook is rotatably installed on the lock housing through the second rivet, and the locking hook includes the front end on both sides of the second rivet and The rear end, the front end is movably connected with the connecting rod, and the rear end is in a U-shaped groove to hook the lock nose. The linkage assembly has simple structure, firm connection and high safety performance.

3. The second end of the connecting rod is provided with a convex portion, and the front end of the lock hook is arc-shaped and provided with a concave portion, the convex portion and the concave portion can be engaged with each other so that the connecting rod and the lock hook are connected. Through the engagement of the convex part and the concave part, the connection between the receiving link and the locking hook can be firmly connected, which further improves the safety of the present invention.

4. The linkage assembly also includes a push rod that provides auxiliary force for the lock hook. The push rod is installed on the side of the lock groove away from the lock nose to push the lock nose. The end of the push rod away from the lock groove is sleeved with a push rod for providing elastic force. spring. After the connecting rod is separated from the lock hook, the elastic force of the push rod spring is transmitted to the push rod and acts on the lock hook, so that the lock nose can quickly disengage from the lock hook to open the box door, which further increases the safety and convenience of the present invention .

5. There is also a travel switch on the lock shell. When the motor-driven electronic lock of the express cabinet is in the locked state, the contact piece of the travel switch contacts the push rod. When the motor-driven electronic lock of the express cabinet is in the unlocked state, The contact piece of the travel switch is disconnected from the push rod. The slight stroke change of the push rod will be recorded by the stroke switch, which not only avoids the problem of no record of mechanical unlocking information, but also greatly improves the security of mechanical unlocking, ensuring the safe use of the electronic lock of the present invention.

6. There is also an LED lighting lamp on the lock case, which is used for lighting in the cabinet. Compared with installing the LED lighting lamp in the cabinet in the prior art, installing the LED lighting lamp on the lock case of the electronic lock can greatly improve the Simplifying the structure and wiring of the cabinet makes the present invention more convenient to use.

7. The lock nose includes a mounting part and a lock part. The lock part can extend into the lock groove and be hooked on the U-shaped groove of the lock hook. The structure is simple, and the lock part can be stably hooked on the U-shaped groove, and the connection is tight, which further improves the security of the present invention.

8. The lock nose is installed on the box door through the installation part, the lock shell is installed on the box body, and the main body of the electronic lock is installed on the box body. The layout is reasonable, which is conducive to improving the stability of the electronic lock and further improving the safety of the present invention. sex.

Description of drawings

Fig. 1 is a perspective view of the present invention;

Fig. 2 is the structural representation of connecting rod of the present invention;

Fig. 3 is a structural schematic diagram of the locking hook of the present invention;

Fig. 4 is a schematic structural view of the locking state of the present invention;

Fig. 5 is a schematic structural diagram of the unlocked state of the present invention.

detailed description

As shown in Figure 1, it is a perspective view of the present invention.

The motor-driven electronic lock 100 of the express cabinet includes a lock case 110, a lock nose 120 that can be inserted into or separated from the lock case 110 to realize locking or opening of the box door, and a power assembly 130 that drives the lock nose 120 to insert or break away from the lock case 110, Connected between the power assembly 130 and the lock nose 120, it is used to drive the lock nose 120 to insert or break away from the linkage assembly 140 of the lock housing 110. Both the power assembly 130 and the linkage assembly 140 are installed on the lock housing 110. To accommodate the lock slot 111 of the lock nose 120 .

The power assembly 130 includes a motor 131, a worm gear 132 connected to the output end of the motor 131, a first reduction gear 133 whose teeth are connected to the worm gear 132, a second reduction gear 134 whose teeth are connected to the first reduction gear 133, and a second reduction gear 134 whose teeth are connected to the second reduction gear. The cam gear 135 of 134, the positioning switch 136 that can be connected or disconnected with the cam gear 135, the PCB board 137 for controlling the connection or disconnection of the positioning switch 136, the second reduction gear 134 is located at the first reduction gear 133 and the cam gear 135 Between, the cam gear 135 , the second reduction gear 134 and the first reduction gear 133 are all rotatably mounted on the lock housing 110 .

On the one hand, the present invention drives the linkage assembly 140 to rotate through the power assembly 130 to insert the lock nose 120 into or out of the lock housing 110 to realize locking or opening of the door, and both the power assembly 130 and the linkage assembly 140 are installed on the lock housing 110 , the structure is simple and compact, and it is easy to use; secondly, the power is provided by the motor 131, the power consumption is low, and the driving current is 300mA/12V. Power consumption is reduced, the push-pull force is large, and the opening and closing of the box door can be realized quickly. When the motor 131 is used to drive, the driving force and reverse pulling force of the power component 130 acting on the box door can reach 20Kg, and when the electromagnet is used to provide power, The push-pull force is only 5Kg; thirdly, the power assembly 130 uses the turbine 132, the first reduction gear 133, the second reduction gear 134 and the cam gear 135 to transmit power, and a positioning switch 136 is provided to control the rotation degree of the cam gear 135 , the control is accurate, and it is beneficial to improve the security of the electronic lock 100 .

As shown in FIG. 2 and FIG. 3 , they are structural schematic diagrams of the connecting rod and the lock hook of the present invention, respectively.

The linkage assembly 140 includes a movably connected connecting rod 141 and a lock hook 142. The connecting rod 141 is rotatably mounted on the lock housing 110 through a first rivet 141a. The connecting rod 141 includes a first end 141b and a The second end 141c protrudes from the first end 141b with a transmission portion 141d connected to the cam gear 135 for power transmission, and the second end 141c is movably connected with the locking hook 142 .

The locking hook 142 is rotatably mounted on the lock housing 110 through the second rivet 142a. The locking hook 142 includes a front end 142b and a rear end 142c located on both sides of the second rivet 142a. The front end 142b is movably connected to the connecting rod 141, and the rear end 142c is U-shaped groove shape to hook lock nose 120 . The linkage assembly 140 has simple structure, firm connection and high safety performance.

The second end 141c of the connecting rod 141 has a convex portion, and the front end 142b of the lock hook 142 is arc-shaped and has a concave portion. Through the engagement of the convex part and the concave part, the connection between the receiving link 141 and the locking hook 142 can be firmly connected, which further improves the safety of the present invention.

The linkage assembly 140 also includes a push rod 143 that provides auxiliary force for the lock hook 142. The push rod 143 is installed on the side of the lock groove 111 away from the lock nose 120 to push the lock nose 120. The end of the push rod 143 away from the lock groove 111 is sheathed. There is a push rod spring 144 for providing elastic force. After the connecting rod 141 disengages from the lock hook 142, the elastic force of the push rod spring 144 is transmitted to the push rod 143, and acts on the lock hook 142, so that the lock nose 120 can quickly break away from the lock hook 142 to open the box door, which further increases the safety of the present invention. safety and ease of use.

The lock housing 110 is also provided with a travel switch 112. When the motor-driven electronic lock 100 of the express cabinet is in the locked state, the contact piece of the travel switch 112 contacts the push rod 143, and the motor-driven electronic lock 100 of the express cabinet is in the locked state. When in the unlocked state, the contact piece of the travel switch 112 is disconnected from the push rod 143 . The tiny stroke change of the push rod 143 will be recorded by the stroke switch 112, which not only avoids the problem of no record of mechanical unlocking information, but also greatly improves the security of the mechanical unlocking, ensuring the safe use of the electronic lock 100 of the present invention.

The lock housing 110 is also provided with an LED lighting lamp for lighting in the cabinet. Compared with the prior art where the LED lighting lamp is installed in the cabinet, the LED lighting lamp is installed on the lock housing 110 of the electronic lock 100, which can The structure and wiring of the cabinet are greatly simplified, making the present invention more convenient to use.

The lock nose 120 includes a mounting part 121 and a lock part 122. The lock part 122 can extend into the lock groove 111 and be hooked to the U-shaped groove of the lock hook 142. The structure is simple, and the lock part 122 can be stably hooked on the U-shaped groove. The connection is tight, which further improves the safety of the present invention.

The lock nose 120 is installed on the box door through the installation part 121, the lock shell 110 is installed on the box body, and the main body of the electronic lock 100 is installed on the box body. The layout is reasonable, which helps to improve the stability of the electronic lock 100. Invention security.

Working principle of the present invention is:

As shown in FIG. 4 and FIG. 5 , they are schematic structural diagrams of the locked state and the unlocked state of the present invention, respectively.

When unlocking, the circuit on the PCB board 137 sends out a low-level trigger signal at 200 mS. At this time, the circuit supplies power to the motor 131, and the motor 131 sequentially drives the first reduction gear 133, the second reduction gear 134 and the cam gear 135 to rotate clockwise through the turbine 132 , when the cam gear 135 rotates 30° clockwise, the cam gear 135 is out of contact with the positioning switch 136, and the low-level trigger signal ends. Since the positioning switch 136 is in the disconnected state at this time, the circuit continues to supply power to the motor 131, and the cam gear 135 promotes connecting rod 141 to rotate, and when connecting rod 141 rotates 10 °, connecting rod 141 disengages from locking hook 142, and simultaneously, push rod spring 144 releases elastic force, promotes lock nose 120 by push rod 143 and makes cabinet door open.

When locking, an external force acts on the box door, and the lock portion 122 of the lock nose 120 is inserted into the lock groove 111, and the push rod 143 is reversely pushed so that the push rod spring 144 is in a compressed state, while hooking the U-shaped groove of the lock hook 142, so that The locking hook 142 rotates counterclockwise, and the locking hook 142 contacts the connecting rod 141 after rotating a certain angle, driving the connecting rod 141 to rotate counterclockwise. Contact and push the cam gear 135 to rotate to contact with the positioning switch 136, so that the positioning switch 136 is closed, and at the same time, the locking hook 142 and the connecting rod 141 engage with the convex part through the concave part, and the electronic lock 100 is in a stable locked state.

The above-mentioned embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (8)

1. The motor-driven electronic lock of the express cabinet is characterized in that it includes a lock case, a lock nose that can be inserted into or separated from the lock case to realize the locking or opening of the box door, a power component that drives the lock nose to insert or break away from the lock case, and a connection A linkage assembly between the power assembly and the lock nose, which is used to drive the lock nose to insert or disengage from the lock case. Both the power assembly and the linkage assembly are installed on the lock case; Slot; the power assembly includes a motor, a worm gear connected to the output end of the motor, a first reduction gear connected to the worm gear, a second reduction gear connected to the first reduction gear, a cam gear connected to the second reduction gear, The positioning switch that can be connected or disconnected with the cam gear, the PCB board used to control the connection or disconnection of the positioning switch, the second reduction gear is located between the first reduction gear and the cam gear, the cam gear, the second reduction gear Both the gear and the first reduction gear are rotatably mounted on the lock housing. 2. The motor-driven electronic lock of the express cabinet according to claim 1, characterized in that: the linkage assembly includes a movably connected connecting rod and a lock hook, and the connecting rod is rotatably mounted on the lock hook through a first rivet. On the lock housing, the connecting rod includes a first end and a second end located on both sides of the first rivet. The first end protrudes from a transmission part connected to the cam gear to transmit power. The second end is connected to the second end. The lock hook is movably connected; the lock hook is rotatably mounted on the lock housing through a second rivet, the lock hook includes a front end and a rear end located on both sides of the second rivet, the front end is movably connected with the connecting rod, The rear end is in the shape of a U-shaped groove to hook the locking nose. 3. The motor-driven electronic lock of the express cabinet according to claim 2, characterized in that: the second end of the connecting rod is provided with a convex portion, the front end of the lock hook is arc-shaped and provided with a concave portion, the The convex part and the concave part can engage with each other so that the connecting rod is connected with the locking hook. 4. The motor-driven electronic lock of the express cabinet according to claim 3, wherein the linkage assembly also includes a push rod that provides auxiliary force for the lock hook, and the push rod is installed in the lock groove away from One side of the lock nose is used to push the lock nose, and the end of the push rod away from the lock groove is sheathed with a push rod spring for providing elastic force. 5. The motor-driven electronic lock of the express cabinet according to claim 4, characterized in that: the lock housing is also provided with a travel switch, and when the motor-driven electronic lock of the express cabinet is in a locked state, the The contact piece of the travel switch is in contact with the push rod, and when the motor-driven electronic lock of the express cabinet is in an unlocked state, the contact piece of the travel switch is disconnected from the push rod. 6. The motor-driven electronic lock of the express cabinet according to claim 5, characterized in that: the lock housing is also provided with an LED lighting lamp. 7. The motor-driven electronic lock of the express cabinet according to claim 6, wherein the lock nose includes a mounting part and a lock part, and the lock part can extend into the lock groove and be hooked to the U of the lock hook. Groove. 8 . The motor-driven electronic lock of the express cabinet according to claim 7 , wherein the lock nose is installed on the box door through the installation part, and the lock shell is installed on the box body.