CN221442331U - Automatic lock for electric cabinet door - Google Patents

Abstract

The present invention proposes an electric cabinet door automatic lock, comprising: a motor; a rotating screw and a rotating gear, which are externally meshed and both are located in a casing, the rotating screw is connected to the output end of the motor, the rotating gear is installed on a fixing screw, one end of the fixing screw is fixed to the lock buckle, and the other end passes through the casing and is connected to the door lock handle; the casing is fixed to the door lock handle; the running track of the lock buckle is fixed by a limiting groove provided by the lock buckle, one end of the limiting screw in the limiting groove is fixed to the lock buckle through a limiting nut thereon, and one end of the limiting screw passes through the limiting groove of the lock buckle, the casing, and is connected to the door lock handle; a limit switch is respectively arranged at both ends of the limiting groove. The present invention can realize automatic unlocking.

Description

Automatic lock for electrical cabinet door

Technical Field

The invention belongs to the field of automatic unlocking, and in particular relates to an automatic lock for an electric cabinet door.

Background technique

With the rapid development of the electrical industry and the widespread application of electrical equipment, safe and reliable inspection of electrical equipment has become an important research topic. Among them, the opening and closing of the door of the power cabinet is a typical task of the inspection and a prerequisite for the operation inside the cabinet, which is of great significance. At present, there are some research topics on the use of robots to automatically open the electrical cabinet, but the current robots have limited functions and a single motion mode, and there will be many problems when unlocking. When the robot needs to insert the key into the mortise lock when opening the electrical cabinet door, it is necessary to align the position when inserting the lock core and accurately control the force of the key. There are many inconveniences in actual use, and the manual workload has not been effectively reduced, and even increased, and the operation application of the robot cannot be effectively promoted. Therefore, in order to further improve the reliability, practicality and functionality of the robot in the inspection process, an electrical cabinet door lock that can automatically open and close the door is proposed. The automatic lock can cooperate with the robot to realize the automatic opening and closing of the door, realize the safe opening and closing of the electrical cabinet door, and improve the automation of the inspection task.

Summary of the invention

The purpose of the present invention is to provide an automatic lock for an electrical cabinet door, which can realize automatic unlocking. To achieve the above purpose, the technical solution adopted is as follows:

An automatic lock for an electrical cabinet door, comprising:

Motor 206;

The rotating screw rod 203 and the rotating gear 202 are externally meshed and are both located in the casing 205. The rotating screw rod 203 is connected to the output end of the motor 206. The rotating gear 202 is installed on the fixing screw 201. One end of the fixing screw 201 is fixed to the lock buckle 204, and the other end passes through the casing 205 and is connected to the door lock handle 101.

The casing 205 is fixed to the door lock handle 101;

The running track of the lock buckle 204 is fixed by the limiting groove provided in the lock buckle 204. One end of the limiting screw 207 in the limiting groove is fixed to the lock buckle 204 through the limiting nut 208 thereon, and one end thereof passes through the limiting groove of the lock buckle 204 and the sleeve 205, and is connected to the door lock handle 101.

A limit switch 209 is disposed at each end of the limit slot.

Preferably, it also includes: a wireless power transmission coil 103 and a power transmission compensation circuit 102, both installed on the door lock handle 101 of the door lock 1;

The output end of the power transmission compensation circuit 102 is electrically connected to the motor 206 , and the input end thereof is connected to the output end of the wireless power transmission coil 103 .

Preferably, the casing 205 is fixed to the door lock handle 101 of the door lock 1 , and one end surface of the casing 205 facing the door lock handle 101 is open to contain the wireless power transmission coil 103 and the power transmission compensation circuit 102 .

Preferably, the rotating screw 203 and the output end of the motor 206 are integrally formed.

Preferably, the rotating gear 202 and the fixing screw 201 are in interference fit.

Compared with the prior art, the advantages of the present invention are:

When the external power transmission coil 104 is close to the door lock 1, the power will be exchanged through the wireless power transmission coil 103 in the power supply device. Then the power enters the power transmission compensation circuit 102, and after a series of compensation measures, the power is input into the motor 206, and the motor 206 is driven to rotate. The motor 206 is connected to the rotating screw rod 202. The rotation of the motor 206 will drive the rotating screw rod 202 to rotate, and then drive the rotating screw 201 to rotate. The rotating screw 201 drives the lock buckle 204 to rotate, and the automatic unlocking function is realized.

When the motor drives the lock to rotate 90°, the limit screw 207 touches the limit switch 209. The limit switch 209 adjusts the circuit to the motor reverse state through the travel switch inside the compensation circuit 102, and stops the forward rotation of the motor 206.

When the external power transmission coil 103 approaches the door lock 1 again, the same steps can be used to drive the motor 206 to reverse and close the door. After running 90°, the limit screw 207 touches the limit switch 209, thereby driving the travel switch to adjust the compensation circuit 102 to the motor forward state.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the mechanism of the present invention;

Fig. 2 is a schematic diagram of a door lock;

Fig. 3 is a schematic diagram of a control device;

FIG. 4 is an enlarged schematic diagram of the interior of the control device.

1-door lock, 101-door lock handle, 102-power transmission compensation circuit, 103-wireless power transmission coil, 104-external power transmission coil;

2-control device, 201-fixing screw, 202-rotating gear, 203-rotating screw rod, 204-locking buckle, 205-housing, 206-motor, 207-limiting screw, 208-limiting nut, 209-limit switch.

Implementation

The following will be described in more detail with reference to the schematic diagram of the present invention, wherein the preferred embodiment of the present invention is shown, and it should be understood that those skilled in the art can modify the present invention described herein, while still achieving the advantageous effects of the present invention. Therefore, the following description should be understood as being widely known to those skilled in the art, and not as a limitation of the present invention.

As shown in Figures 1 to 3, an automatic lock for an electrical cabinet door is composed of a door lock 1 and a control device 2.

The door lock 1 mainly comprises a door lock handle 101, a power transmission compensation circuit 102, a wireless power transmission coil 103 and an external power transmission coil 104. The door lock handle 101 is connected to a fixing screw 201, and the wireless power transmission coil 103 and the power transmission compensation circuit 102 are installed in a casing 205, which can supply power to the control device 2 and be controlled by the control device 2 to realize the function of opening and closing the lock.

That is, the wireless power transmission coil 103 and the power transmission compensation circuit 102 are both installed on the door lock handle 101 of the door lock 1;

The output end of the power transmission compensation circuit 102 is electrically connected to the motor 206 , and the input end thereof is connected to the output end of the wireless power transmission coil 103 .

When the external power transmission coil approaches the door lock, the power will pass through the wireless power transmission coil 102 and, after being compensated by the power transmission compensation circuit 103, power the motor 206 of the control device 2, thereby realizing the opening and closing action of the door lock.

The control device 2 comprises:

The motor 206 is installed in the housing 205, driving the rotating screw 203 to rotate, and then driving the rotating gear 202 to rotate, so that the lock buckle 204 is unscrewed under the action of the rotating gear 202, and is limited by the limit screw 207 and the limit nut 208 (the limit nut 208 is installed on the limit screw 207, and the limit nut 208 covers the limit groove), realizing the switch lock function.

About power supply and control: The whole mechanism is controlled by motor 206. Control device 2 is connected to 6V DC, which can be obtained by two 3.7V batteries connected in series.

The rotating screw 203 and the rotating gear 202 are externally meshed and are both located in the casing 205. The rotating screw 202 is connected to the output end of the motor 206. The rotating gear 202 is installed on the fixing screw 201. One end of the fixing screw 201 is fixed to the lock buckle 204, and the other end passes through the casing 205 and is connected to the door lock handle 101.

Furthermore, the rotating gear 202 and the fixing screw 201 are in interference fit. The rotating screw rod 203 and the output end of the motor 206 are integrally formed.

The casing 205 is fixed to the door lock handle 101 , and one end surface of the casing 205 facing the door lock handle 101 is open to cover the wireless power transmission coil 103 and the power transmission compensation circuit 102 .

working principle:

When the external power transmission coil 104 is close to the door lock 1, the power will be exchanged through the wireless power transmission coil 103 in the power supply device. Then the power enters the power transmission compensation circuit 102, and after a series of compensation measures, the power is input into the motor 206, and the motor 206 is driven to rotate.

The motor 206 is connected to the rotating screw rod 202. The rotation of the motor 206 drives the rotating screw rod 203 to rotate, and then drives the rotating gear 202 to rotate. The rotating gear 202 drives the lock buckle 204 to rotate, thereby realizing the automatic unlocking function.

When the motor drives the lock to rotate 90°, the limit screw 207 touches the limit switch 209. The limit switch 209 adjusts the circuit to the motor reverse state through the travel switch inside the compensation circuit 102 and stops the forward rotation of the motor 206.

When the external power transmission coil 104 approaches the door lock 1 again, the same steps can be used to drive the motor 206 to reverse and close the door. After the motor drives the lock to rotate 90°, the limit screw 207 touches the limit switch 209, thereby driving the travel switch to adjust the compensation circuit 102 to the forward rotation state of the motor.

The above is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any technician in the relevant technical field, without departing from the scope of the technical solution of the present invention, makes any form of equivalent replacement or modification to the technical solution and technical content disclosed in the present invention, which does not depart from the content of the technical solution of the present invention and still falls within the protection scope of the present invention.

Claims (5)

1. An automatic lock for an electrical cabinet door, comprising: Motor (206); The rotating screw (203) and the rotating gear (202) are externally meshed and are both located in a casing (205); the rotating screw (203) is connected to the output end of the motor (206); the rotating gear (202) is mounted on a fixing screw (201); one end of the fixing screw (201) is fixed to the lock catch (204); the other end passes through the casing (205) and is connected to the door lock handle (101); The casing (205) is fixed to the door lock handle (101); The running track of the lock buckle (204) is fixed by a limiting groove provided in the lock buckle (204); one end of a limiting screw (207) in the limiting groove is fixed to the lock buckle (204) by a limiting nut (208) thereon, and one end thereof passes through the limiting groove and the sleeve (205) of the lock buckle (204) and is connected to the door lock handle (101); A limit switch (209) is respectively arranged at both ends of the limit slot. 2. The electric cabinet door automatic lock according to claim 1, characterized in that it also comprises: a wireless power transmission coil (103) and a power transmission compensation circuit (102), both of which are installed on the door lock handle (101) of the door lock (1); The output end of the electric energy transmission compensation circuit (102) is electrically connected to the motor (206), and the input end thereof is connected to the output end of the wireless electric energy transmission coil (103). 3. The electric cabinet door automatic lock according to claim 2, characterized in that the housing (205) is fixed to the door lock handle (101) of the door lock (1), and one end surface of the housing (205) facing the door lock handle (101) is open to contain the wireless power transmission coil (103) and the power transmission compensation circuit (102). 4. The automatic electric cabinet door lock according to claim 1, characterized in that the rotating screw (203) and the output end of the motor (206) are integrally formed. 5. The automatic lock for an electric cabinet door according to claim 1, characterized in that the rotating gear (202) and the fixing screw (201) are in interference fit.