Low-power-consumption passive electromagnetic lock with automatic locking function

Abstract

The utility model discloses a low-power-consumption passive electromagnetic lock with an automatic locking function, and relates to the technical field of electromagnetic locks, the electromagnetic lock comprises a mounting plate, a protective shell and a self-locking mechanism are respectively arranged on one side of the exterior of the mounting plate, the protective shell and the mounting plate are fixedly mounted, a control assembly is fixedly mounted in the protective shell, and the self-locking mechanism is connected with the control assembly. And an electromagnetic block is fixedly installed at the bottom of the control assembly, a sliding rod is fixedly installed at the bottom of the electromagnetic block, and an iron sheet is slidably installed outside the sliding rod. Through the arrangement of the self-locking mechanism, when the high-voltage cabinet door is closed, the high-voltage cabinet door and the high-voltage cabinet can be self-locked, manual locking is not needed, the situation that manual locking is forgotten is avoided, and the stability and safety of closing of the high-voltage cabinet door are improved through double fixation.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electromagnetic lock, specifically a low -power passive with automatic locking function's electromagnetic lock. BACKGROUND

[0002] Electromagnetic lock is a kind of electric control mechanism interlock device to prevent high voltage switchgear electrical misoperation, mainly for indoor high voltage switchgear front and rear door, disconnecting switch, circuit breaker etc. The interlocking of the locking part is realized, and misoperation is prevented.

[0003] The existing electromagnetic lock mostly needs manual locking in the process of using, when checking a large number of high voltage cabinets, it is easy to forget to lock, when the internal voltage of high voltage cabinet is high, electromagnetic lock is powered off, the high voltage cabinet door of locking cannot be opened, needs to use key, and the high voltage cabinet door without locking can be opened, when operating personnel open the high voltage cabinet door, it is very dangerous to check under the condition of not knowing that internal voltage is high.

[0004] Based on this, a low-power passive electromagnetic lock with automatic locking function is provided, which can eliminate the drawbacks of the existing device. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a low-power passive electromagnetic lock with automatic locking function to solve the problem of inconvenient automatic locking in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A low-power passive electromagnetic lock with automatic locking function, comprising a mounting plate, a protective shell and a self-locking mechanism are arranged on the outer side of the mounting plate, and the protective shell is fixedly installed between the mounting plate, a control assembly is fixedly installed in the interior of the protective shell, an electromagnetic block is fixedly installed at the bottom of the control assembly, a sliding rod is fixedly installed at the bottom of the electromagnetic block, and an iron sheet is slidingly installed on the outer side of the sliding rod.

[0008] On the basis of the above technical scheme, the utility model also provides the following optional technical scheme:

[0009] In an optional scheme, the self-locking mechanism comprises a fixed plate and a fixed part, the fixed plate is fixedly installed on one side of the mounting plate, a mounting block is fixedly installed on one side of the fixed plate, a mounting groove is formed in the top of the mounting block, a self-locking part is rotatably installed in the interior of the mounting groove, the fixed part is fixedly installed with the high voltage cabinet, and the mounting plate is fixedly installed with the high voltage cabinet door.

[0010] In an optional scheme, the interior of the protective shell is provided with a driving assembly.

[0011] In an optional scheme, the driving assembly comprises a motor fixedly installed at one side of the inner portion of the protection shell, and the motor is electrically connected with the control assembly, and the output end of the motor is connected with the self-locking piece.

[0012] In an optional scheme, one side of the protection shell is penetrated by a slidingly installed insertion rod, the outer portion of the insertion rod is fixedly installed with a moving piece, and the moving piece is located at the inner portion of the protection shell, the top portion of the moving piece is attached to the bottom portion of the iron sheet, the outer portion of the insertion rod is sleeved with a reset spring, and the reset spring is located at one side of the moving piece.

[0013] In an optional scheme, the other side of the moving piece is provided with a positioning groove, the inner portion of the positioning groove is provided with a matched positioning rod, one end of the positioning rod is fixedly installed with a rotating piece, and the rotating piece is rotatably installed with the mounting plate, the other side of the mounting plate is rotatably installed with a handle, and one end of the handle is connected with the rotating piece.

[0014] In an optional scheme, the outer portion of the handle is installed with a button, and the outer portion of the control assembly is provided with a contact point matched with the button.

[0015] In an optional scheme, the other side of the mounting plate is provided with a lock hole located at the left side of the handle, the inner portion of the lock hole is rotatably installed with a rotating rod, one end of the rotating rod penetrates through the mounting plate and is connected with a cam, and the cam is located below the iron sheet.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] The utility model discloses a self-locking mechanism is arranged, when closing the high voltage cabinet door, can be with high voltage cabinet door and high voltage cabinet self-locking, need not manual locking, avoid the situation that forgets manual locking to take place, and double -fixed improves the stability and security of high voltage cabinet door closing. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is whole internal structure schematic diagram of the utility model.

[0019] Figure 2 It is protection shell internal structure schematic diagram of the utility model.

[0020] Figure 3 It is self-locking mechanism structure schematic diagram of the utility model.

[0021] Figure 4 It is driving assembly structure schematic diagram of the utility model.

[0022] Figure 5 It is cam mounting structure schematic diagram of the utility model.

[0023] Marked notes: 1, mounting plate; 2, protective shell; 3, self-locking mechanism; 301, fixed plate; 302, fixing piece; 303, mounting block; 304, mounting groove; 305, self-locking piece; 306, motor; 4, control assembly; 5, electromagnetic block; 6, slide rod; 7, iron sheet; 8, plug rod; 9, moving piece; 10, return spring; 11, positioning groove; 12, positioning rod; 13, rotating piece; 14, handle; 15, button; 16, contact; 17, lock hole; 18, rotating rod; 19, cam. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the utility model is further described in detail below with reference to the drawings and examples.

[0025] In one embodiment, as shown in Figures 1-5 A low-power passive electromagnetic lock with automatic locking function, comprising a mounting plate 1, the outer side of the mounting plate 1 is respectively provided with a protective shell 2 and a self-locking mechanism 3, and the protective shell 2 is fixedly installed between the mounting plate 1, the inside of the protective shell 2 is fixedly installed with a control assembly 4, the bottom of the control assembly 4 is fixedly installed with an electromagnetic block 5, the bottom of the electromagnetic block 5 is fixedly installed with a slide rod 6, and the outer side of the slide rod 6 is slidably installed with an iron sheet 7.

[0026] In this embodiment, the mounting plate 1 is fixedly installed with the high-voltage cabinet door, through the setting of the self-locking mechanism 3, when the high-voltage cabinet door is closed, the high-voltage cabinet door and the high-voltage cabinet can be self-locked, without manual locking, and the double fixation improves the stability and safety of the high-voltage cabinet door closing, when the high-voltage cabinet door needs to be opened, the coil inside the control assembly 4 is energized to make the electromagnetic block 5 generate magnetic attraction, the electromagnetic block 5 magnetically attracts and adheres to the iron sheet 7, the fixation of the moving piece 9 by the iron sheet 7 is released, at this time, rotating the handle 14 can drive the plug rod 8 to move, so that the high-voltage cabinet door is opened.

[0027] In one embodiment, as shown in Figure 1 and Figure 3 The self-locking mechanism 3 comprises a fixed plate 301 and a fixing piece 302, the fixed plate 301 is fixedly installed on one side of the mounting plate 1, one side of the fixed plate 301 is fixedly installed with a mounting block 303, the top of the mounting block 303 is provided with a mounting groove 304, the inside of the mounting groove 304 is rotatably installed with a self-locking piece 305, the fixing piece 302 is fixedly installed with the high-voltage cabinet, and the mounting plate 1 is fixedly installed with the high-voltage cabinet door, when the high-voltage cabinet door is closed, due to the certain slope at the self-locking piece 305, the fixing piece 302 drives the self-locking piece 305 to rotate upward, after the fixing piece 302 completely penetrates through the self-locking piece 305, it automatically drops downward due to the action of gravity, and the angle of dropping is just enough to block the fixing piece 302, thereby playing a self-locking role.

[0028] In one embodiment, as shown in Figure 3 The inside of the protective shell 2 is provided with a driving assembly which controls the rotation of the self-locking piece 305. When the high-voltage cabinet door needs to be opened, the driving assembly works to drive the self-locking piece 305 to rotate upward, so that the fixing of the self-locking piece 305 to the fixing piece 302 is released.

[0029] In one embodiment, as shown in Figure 4 The driving assembly includes a motor 306 which is fixedly installed on one side of the inside of the protective shell 2 and is electrically connected between the control assembly 4. The output end of the motor 306 is connected with the self-locking piece 305. When the electromagnetic block 5 is attached to the iron sheet 7, the control assembly 4 supplies power to the motor 306, the motor 306 works to drive the self-locking piece 305 to rotate upward, so that the fixing of the self-locking piece 305 to the fixing piece 302 is released. When the iron sheet 7 is separated from the electromagnetic block 5, the control assembly 4 cancels the power supply to the motor 306, and the self-locking piece 305 naturally rotates downward and resets due to gravity.

[0030] In one embodiment, as shown in Figure 2 One side of the protective shell 2 is penetrated by a slidingly installed insertion rod 8. The outside of the insertion rod 8 is fixedly installed with a moving piece 9 which is located inside the protective shell 2. The top of the moving piece 9 is attached to the bottom of the iron sheet 7. The outside of the insertion rod 8 is sleeved with a reset spring 10 which is located on one side of the moving piece 9. When the iron sheet 7 is magnetically attached by the electromagnetic block 5, the fixing of the iron sheet 7 to the moving piece 9 is released. At this time, the rotating handle 14 drives the moving piece 9 to move, the moving piece 9 drives the insertion rod 8 to move, the reset spring 10 is compressed, and the insertion rod 8 is released from the fixing of the high-voltage cabinet, so that the high-voltage cabinet door can be opened. When the high-voltage cabinet door needs to be closed, the high-voltage cabinet door is closed, and the handle 14 is loosened. The moving piece 9 and the insertion rod 8 are reset and moved due to the reset of the reset spring 10, and the insertion rod 8 resets to fix the high-voltage cabinet door.

[0031] In one embodiment, as shown in Figure 1 , Figure 2 and Figure 5 The other side of the moving piece 9 is provided with a positioning groove 11. The inside of the positioning groove 11 is provided with a matching positioning rod 12. One end of the positioning rod 12 is fixedly installed with a rotating piece 13 which is rotatably installed between the mounting plate 1. The other side of the mounting plate 1 is rotatably installed with a handle 14 which is connected with the rotating piece 13 at one end. The rotating handle 14 drives the rotating piece 13 to rotate, and through the cooperation of the positioning rod 12 and the positioning groove 11, the moving piece 9 drives the insertion rod 8 to move.

[0032] In one embodiment, as shown in Figure 1 and Figure 2As shown, the outside of the handle 14 is provided with a button 15, the outside of the control assembly 4 is provided with a contact 16, and the contact 16 is matched with the button 15. Pressing the button 15 makes one end of the button 15 contact the contact 16. After the contact 16 is contacted, the coil inside the control assembly 4 works, so that the electromagnetic block 5 generates magnetic force.

[0033] In one embodiment, as shown in Figure 1 and Figure 5 As shown, the other side of the mounting plate 1 is provided with a lock hole 17, and the lock hole 17 is located on the left side of the handle 14. A rotating rod 18 is rotatably installed inside the lock hole 17. One end of the rotating rod 18 penetrates the mounting plate 1 and is connected with a cam 19. The cam 19 is located below the iron sheet 7. When the internal voltage of the high-voltage cabinet is high, the electromagnetic lock is powered off. Insert the key into the inside of the lock hole 17, and rotate the key. The key drives the rotating rod 18 to rotate. The rotating rod 18 drives the cam 19 to rotate. The cam 19 lifts the iron sheet 7 and makes it adhere to the electromagnetic block 5. At this time, the power supply inside the control assembly 4 supplies power to the motor 306. At the same time, the fixing of the moving part 9 by the iron sheet 7 is released. By rotating the handle 14, the high-voltage cabinet door can be opened.

[0034] The above embodiment discloses a low-power-consumption passive electromagnetic lock with automatic locking function. When the high-voltage cabinet door needs to be opened, press the button 15, so that one end of the button 15 contacts the contact 16. After the contact 16 is contacted, the coil inside the control assembly 4 works, so that the electromagnetic block 5 generates magnetic force. The electromagnetic block 5 magnetically adheres to the iron sheet 7. The control assembly 4 supplies power to the motor 306. The motor 306 works and drives the self-locking part 305 to rotate upward, so that the fixing of the fixed part 302 by the self-locking part 305 is released. At the same time, the fixing of the moving part 9 by the iron sheet 7 is released. Rotating the handle 14 drives the rotating part 13 to rotate. Through the cooperation of the positioning rod 12 and the positioning groove 11, the moving part 9 drives the insertion rod 8 to move. At this time, the high-voltage cabinet door can be opened. When the internal voltage of the high-voltage cabinet is high, the electromagnetic lock is powered off. Insert the key into the inside of the lock hole 17, and rotate the key. The key drives the rotating rod 18 to rotate. The rotating rod 18 drives the cam 19 to rotate. The cam 19 lifts the iron sheet 7 and makes it adhere to the electromagnetic block 5. At this time, the power supply inside the control assembly 4 supplies power to the motor 306. At the same time, the fixing of the moving part 9 by the iron sheet 7 is released. By rotating the handle 14, the high-voltage cabinet door can be opened. When the high-voltage cabinet door is closed, due to the certain slope at the self-locking part 305, the fixed part 302 drives the self-locking part 305 to rotate upward. After the fixed part 302 completely penetrates the self-locking part 305, it automatically drops downward due to the action of gravity. The angle of the downward drop is just enough to block the fixed part 302, which plays a self-locking role. Loosen the handle 14. Due to the reset of the reset spring 10, the moving part 9 and the insertion rod 8 are reset and moved, so that the high-voltage cabinet door is fixed.

[0035] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A low-power passive electromagnetic lock with automatic closing function of the band, comprising a mounting plate (1), characterized in that, The outer side of the mounting plate (1) is respectively provided with a protective shell (2) and a self-locking mechanism (3), and the protective shell (2) is fixedly installed between the mounting plate (1), the inner side of the protective shell (2) is fixedly installed with a control assembly (4), the bottom of the control assembly (4) is fixedly installed with an electromagnetic block (5), the bottom of the electromagnetic block (5) is fixedly installed with a sliding rod (6), and the outer side of the sliding rod (6) is slidably installed with an iron sheet (7).

2. The low-power passive electromagnetic lock with automatic closing function according to claim 1, characterized in that, The self-locking mechanism (3) comprises a fixed plate (301) and a fixed part (302), the fixed plate (301) is fixedly installed on one side of the mounting plate (1), one side of the fixed plate (301) is fixedly installed with a mounting block (303), the top of the mounting block (303) is provided with a mounting groove (304), the inner side of the mounting groove (304) is rotatably installed with a self-locking part (305), the fixed part (302) is fixedly installed with the high-voltage cabinet, and the mounting plate (1) is fixedly installed with the high-voltage cabinet door.

3. The low-power passive electromagnetic lock with automatic closing function according to claim 2, characterized in that, The inner side of the protective shell (2) is provided with a driving assembly.

4. The low-power passive electromagnetic lock with automatic closing function according to claim 3, characterized in that, The driving assembly comprises a motor (306), the motor (306) is fixedly installed on one side of the inner side of the protective shell (2), and the motor (306) is electrically connected with the control assembly (4), and the output end of the motor (306) is connected with the self-locking part (305).

5. The low power consumption electromagnetic lock with automatic closing function according to claim 1, wherein, One side of the protective shell (2) penetrates a slidingly installed plug rod (8), the outer side of the plug rod (8) is fixedly installed with a moving part (9), and the moving part (9) is located in the inner side of the protective shell (2), the top of the moving part (9) is attached to the bottom of the iron sheet (7), the outer side of the plug rod (8) is provided with a reset spring (10), and the reset spring (10) is located on one side of the moving part (9).

6. The low power consumption electromagnetic lock with automatic closing function according to claim 5, characterized in that, The other side of the moving part (9) is provided with a positioning groove (11), the inner side of the positioning groove (11) is provided with a matching positioning rod (12), one end of the positioning rod (12) is fixedly installed with a rotating part (13), and the rotating part (13) is rotatably installed with the mounting plate (1), the other side of the mounting plate (1) is rotatably installed with a handle (14), and one end of the handle (14) is connected with the rotating part (13).

7. The low-power passive electromagnetic lock with automatic closing function according to claim 6, characterized in that, The outer side of the handle (14) is provided with a button (15), and the outer side of the control assembly (4) is provided with a contact (16), and the contact (16) is matched with the button (15).

8. The low power consumption electromagnetic lock with automatic closing function according to claim 1, characterized in that, The other side of the mounting plate (1) is provided with a lock hole (17), and the lock hole (17) is located on the left side of the handle (14), the inner side of the lock hole (17) is rotatably installed with a rotating rod (18), one end of the rotating rod (18) penetrates the mounting plate (1) and is connected with a cam (19), and the cam (19) is located below the iron sheet (7).

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