Electromagnetic valve switch

Abstract

The utility model relates to the technical field of switches, in particular to an electromagnetic valve switch which is characterized in that after equipment starts to work, a power supply module is electrified to supply power to a switch module, an electromagnet is electrified to generate corresponding magnetic force to drive a lock rod to move into a lock groove, two lock blocks are locked through the lock rod, and then a cabinet door is locked; when the equipment stops working, the power supply module stops supplying power, the electromagnet does not work, the lock rod is reset, and the cabinet door is unlocked. According to the utility model, the cabinet door can be automatically locked after the equipment is started, and can be unlocked after the equipment is completely shut down and no hidden danger is confirmed through safety check, so that the safety of the equipment during operation is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of switch technology, and in particular to a solenoid valve switch. Background Technology

[0002] With the development of modern industry, various mechanical equipment plays a crucial role in the production process. However, these devices often contain high-speed rotating parts, high-temperature areas, or other potentially hazardous elements. If the cabinet doors are opened arbitrarily while the equipment is running, it could lead to serious safety accidents. Most equipment on the market today lacks a dedicated cabinet door locking mechanism; their doors are often designed with simple latches, lacking effective locking functionality. While this design facilitates operation, it also creates safety hazards, as any unauthorized personnel can easily open the cabinet doors, increasing the risk of accidents.

[0003] Furthermore, the lack of intelligent monitoring and response mechanisms for cabinet door status (open / closed) in existing equipment prevents automatic emergency measures (such as stopping equipment operation) when an unexpected cabinet door opening is detected, further increasing operational risks. Therefore, ensuring equipment safety during operation, especially preventing safety accidents caused by accidental opening of cabinet doors, has become an urgent technical problem to be solved. Summary of the Invention

[0004] This utility model addresses the problems of existing technologies by providing a solenoid valve switch that can automatically lock the cabinet door after the equipment is started and can only unlock it after the equipment has been completely stopped and a safety inspection has confirmed that there are no hidden dangers, thereby effectively improving the safety of the equipment during operation.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a solenoid valve switch, including a switch module, a control module and a power supply module, wherein the switch module includes a locking block, an electromagnet and a locking rod installed at the output end of the electromagnet, and the equipment cabinet door includes two cabinet doors, both of which are equipped with the locking block, and the locking block has a locking groove.

[0006] After the power module is powered on, it outputs a working voltage to the electromagnet. The control module is used to control the power module to output different working voltages, and the electromagnet outputs different magnetic forces according to different working voltages.

[0007] After receiving the operating voltage from the power module, the output end of the electromagnet drives the locking rod to move, causing the locking rod to insert into the locking slots of the two locking blocks, thereby locking the two locking blocks together.

[0008] Preferably, the locking block is made of metal.

[0009] Preferably, the locking block is U-shaped, and the locking slots of the two locking blocks are connected.

[0010] Preferably, the locking groove is U-shaped.

[0011] Preferably, a guide groove is provided at the opening of the lock groove, and the width of the opening of the guide groove is greater than the width of the lock groove.

[0012] Preferably, the control module is equipped with a timing unit. After the power module is powered on, the control module controls the power module to output a first operating voltage; after the power-on time reaches the time set by the timing module, the control module controls the power module to output a second operating voltage.

[0013] Preferably, the power supply module includes an input unit, a transformer unit, and an output unit. The input unit is connected to an external power source and the transformer unit is connected to the input unit. The transformer unit converts the input voltage of the input unit and outputs the converted voltage to the control module. The control module is connected to the electromagnet through the output unit.

[0014] Preferably, the output unit includes a switching transistor Q1, a Zener diode D2, a resistor R2, a resistor R3, and a capacitor C3; the output terminal of the control module is connected to the control terminal of the switching transistor Q1 through the resistor R2, one switching terminal of the switching transistor Q1 is grounded, the other switching terminal of the switching transistor Q1 is connected to the input unit through the Zener diode D2, the capacitor C3 is connected in parallel with the Zener diode D2, one end of the resistor R3 is grounded, and the other end of the resistor R3 is connected to the control terminal of the switching transistor Q1.

[0015] The beneficial effects of this utility model are:

[0016] This utility model provides an electromagnetic valve switch. When the equipment starts operating, the power module is energized, supplying power to the switch module. The electromagnet, when energized, generates a corresponding magnetic force, driving a locking rod to move into the locking groove. The locking rod then locks two locking blocks, thereby locking the cabinet door. When the equipment stops operating, the power module stops supplying power, the electromagnet stops working, the locking rod resets, and the cabinet door unlocks. This utility model can automatically lock the cabinet door after the equipment starts and only unlock it after the equipment has completely stopped and a safety inspection confirms there are no potential hazards, thus effectively improving the safety of the equipment during operation. Attached Figure Description

[0017] Figure 1 This is a circuit schematic diagram of the control module and output unit of this utility model;

[0018] Figure 2 This is a circuit diagram of the input unit and transformer unit of the power module of this utility model;

[0019] Figure 3 This is a schematic diagram of the switch module of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the lock block and lock rod of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the locking block of this utility model.

[0022] exist Figures 1 to 5 The reference numerals in the figures include:

[0023] 1-Electromagnet, 2-Control module, 3-Power supply module, 4-Lock block, 5-Lock rod, 6-Cabinet door, 7-Lock groove, 8-Guide groove, 9-Input unit, 10-Transformer unit, 11-Output unit, 12-Infrared sensor. Detailed Implementation

[0024] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0025] This embodiment provides a safety lock for a device cabinet door 6, such as... Figures 1 to 5 As shown, it includes a switch module, a control module 2 and a power supply module 3. The switch module includes a lock block 4, an electromagnet 1 and a lock rod 5 installed at the output end of the electromagnet 1. The equipment cabinet door 6 includes two cabinet doors 6, both of which are equipped with the lock block 4. The lock block 4 has a lock groove 7.

[0026] After the power module 3 is powered on, it outputs a working voltage to the electromagnet 1. The control module 2 is used to control the power module 3 to output different working voltages. The electromagnet 1 outputs different magnetic forces according to different working voltages. After the electromagnet 1 receives the working voltage from the power module 3, the output end of the electromagnet 1 drives the locking rod 5 to move so that the locking rod 5 is inserted into the locking slots 7 of the two locking blocks 4, and the two locking blocks 4 are locked by the locking rod 5.

[0027] Specifically, such as Figure 3 As shown, in this embodiment, the locking of the equipment cabinet door 6 is achieved by generating magnetic force through energizing the electromagnet 1. The structure of the electromagnet 1 is existing technology; by energizing, the iron core of the electromagnet 1 is magnetized, causing the core to move under the influence of magnetic force. After de-energizing, the core returns to its original position. The specific structure is not described in detail here. In this embodiment, the locking rod 5 is made of the same material as the iron core and is assembled onto the iron core, as shown... Figure 3 As shown, therefore, when the iron core moves, it can drive the locking rod 5 to move. Figure 3In the direction of the electromagnet 1, when the electromagnet 1 is energized, the iron core moves downward under the action of magnetic force, driving the locking rod 5 to move downward, so that the locking rod 5 moves into the locking groove 7 of the two locking blocks 4, thereby locking the two locking blocks 4, and then locking the two equipment cabinet doors 6. Moreover, the locking blocks 4 are made of metal material, and the iron core can also attract the locking blocks 4 after being magnetized, ensuring that the cabinet doors 6 are locked and not easy to be opened.

[0028] The structure of the two locking blocks 4 is as follows: Figure 4 and Figure 5 As shown, the lock block 4 is U-shaped and has two lock grooves 7, which are also U-shaped. The opening of the lock groove 7 is provided with a guide groove 8. The width a of the guide groove 8 is greater than the diameter of the lock rod 5 and the width b of the lock groove 7, so that the lock rod 5 can be inserted into the lock groove 7. The width b of the lock groove 7 is slightly larger than the lock rod 5. As long as the lock rod 5 can be inserted into the lock groove 7, there is no restriction here.

[0029] Furthermore, in order to ensure that the switch module can lock the cabinet door 6 properly, this embodiment also includes a detection module. The detection module includes an infrared sensor 12, which is set at a horizontal height corresponding to the lock groove 7. This allows the sensor to detect whether the locking rod 5 is inserted into the lock groove 7. If it is not inserted into the lock groove 7 in time, the detection signal is transmitted to the control module 2. The control module 2 then controls an alarm, such as a buzzer or an indicator light, to notify the staff.

[0030] In this embodiment, the control module 2 and power module 3 are as follows: Figure 1 and Figure 2 As shown, the control module 2 is equipped with a timing unit. After the power module 3 is powered on, the control module 2 controls the power module 3 to output a first working voltage, such as 24V. After the power-on time reaches the time set by the timing module, the control module 2 controls the power module 3 to output a second working voltage, such as 10V. The power module 3 includes an input unit 9, a transformer unit 10, and an output unit 11. The transformer unit 10 is existing technology. The input unit 9 is connected to an external power source. The input unit 9 is connected to the transformer unit 10, which converts the input voltage of the input unit 9 and outputs the converted voltage to the control module 2. The control module 2 is connected to the electromagnet 1 through the output unit 11. The output unit 11 includes a switching transistor Q1, a Zener diode D2, resistors R2 and R3, and a capacitor C3. The output terminal of the control module 2 is connected to the control terminal of the switching transistor Q1 through resistor R2. One terminal of the switching transistor Q1 is grounded, and the other terminal is connected to the input unit 9 through the Zener diode D2. The capacitor C3 is connected in parallel with the Zener diode D2. One end of the resistor R3 is grounded, and the other end is connected to the control terminal of the switching transistor Q1. The specific connection method is as follows: Figure 1As shown, the energizing time and voltage of electromagnet 1 can be controlled by controlling the turn-off of switch Q1 and the turn-off time. Multiple output units 11 can be set, each output unit 11 outputting a different working voltage, thereby allowing for more flexible control of the working voltage of electromagnet 1.

[0031] Specifically, the control module 2 uses a common controller such as a microcontroller. The timing module presets a 3-second time. 3 seconds before the electromagnet 1 is powered on, the power module 3 outputs 24V voltage to the electromagnet 1. After 3 seconds of power supply, the voltage drops to 10V. This ensures that the electromagnet 1 has sufficient attraction to lock the door when powered on. After 3 seconds, the voltage drops, allowing the electromagnet 1 to maintain its attraction while reducing energy loss and the heat generated by the coil of the electromagnet 1, thus ensuring that the product operates in a safe and reliable environment.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. An electromagnetic valve switch characterized by: Including switch module, control module and power module, the switch module includes lock block, electromagnet and lock rod installed on the output end of the electromagnet, the equipment cabinet door includes two cabinet doors, and the two cabinet doors are provided with the lock block, and the lock block is provided with a lock slot; The power module outputs working voltage to the electromagnet after being powered on, the control module is used for controlling the power module to output different working voltages, and the electromagnet outputs different magnetic forces according to different working voltages; After the electromagnet receives the working voltage of the power module, the output end of the electromagnet drives the lock rod to move to make the lock rod insert into the lock slots of the two lock blocks, and the two lock blocks are locked by the lock rod.

2. The solenoid valve switch according to claim 1, wherein: The lock block is made of metal.

3. The solenoid valve switch according to claim 1, wherein: The lock block is in U-shaped, and the lock slots of the two lock blocks are communicated.

4. The solenoid valve switch according to claim 1, wherein: The shape of the lock slot is U-shaped.

5. The solenoid valve switch according to claim 4, wherein: The opening of the lock slot is provided with a guide slot, and the width of the opening of the guide slot is greater than the width of the lock slot.

6. The solenoid valve switch according to claim 1, wherein: The control module is provided with a timing unit, the control module controls the power module to output a first working voltage after the power module is powered on, and the control module controls the power module to output a second working voltage after the power module is powered on for a time set by the timing module.

7. The solenoid valve switch according to claim 1, wherein: The power module includes an input unit, a voltage conversion unit and an output unit, the input unit is connected with an external power supply, the input unit is connected with the voltage conversion unit, the input voltage of the input unit is converted through the voltage conversion unit, and the converted voltage is output to the control module, and the control module is connected with the electromagnet through the output unit.

8. The solenoid valve switch according to claim 7, wherein: The output unit includes a switch tube Q1, a voltage stabilizing diode D2, a resistor R2, a resistor R3 and a capacitor C3; the output end of the control module is connected with the control end of the switch tube Q1 through the resistor R2, one switch end of the switch tube Q1 is grounded, the other switch end of the switch tube Q1 is connected with the input unit through the voltage stabilizing diode D2, the capacitor C3 is connected with the voltage stabilizing diode D2 in parallel, one end of the resistor R3 is grounded, and the other end of the resistor R3 is connected with the control end of the switch tube Q1.

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