Automatic locking electromagnetic switch
By adding a self-locking mechanism to the electromagnetic switch, and using the cooperation of the self-locking bracket and locking spring, the dangerous problem caused by the unstable magnetic force after the electromagnetic switch is disconnected is solved, and the safe automatic locking function of the switch is realized.
Patent Information
- Application Number
- CN202421116211.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-05-22
AI Technical Summary
The existing electromagnetic switch is unstable after being disconnected, which may cause the magnet to fall off, causing the circuit that should not be turned on to be turned on again, causing danger.
An electromagnetic switch that automatically locks is designed. By adding a self-locking mechanism to the switch body, the self-locking bracket and locking spring are used to prevent the switch from automatically opening in the closed state.
It effectively prevents the switch from automatically turning on when the switch is closed, improves the safety of the electromagnetic switch and reduces the risk of incorrect operation.
Smart Images
Figure CN223006678U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a magnetic flux converter, in particular to an electromagnetic switch with automatic locking. Background Art
[0002] An electromagnetic switch controls the magnetic field in a coil by opening and closing a circuit, thereby providing magnetic force to a magnet to achieve the on-off function. Because of the sensitivity and safety of the electromagnetic switch, it is widely used. However, also due to the sensitivity of electromagnetic induction, often after the switch is turned off, the magnet may experience unstable magnetic force due to its own gravity or unstable switch voltage, and the unstable force on the magnet may cause it to fall, resulting in the circuit that should not be conductive being conductive again, posing a danger.
[0003] Traditional electromagnetic switches use additional protection circuits to ensure the stability of the switch circuit itself. However, this requires relying on the controllability of the circuit itself. In important and dangerous situations, without physical anti-fooling measures, it is very easy to cause secondary dangers, seriously causing economic and safety hazards. Summary of the Utility Model
[0004] The technical problem to be solved by the utility model is: to provide an electromagnetic switch with automatic locking, aiming to prevent accidental losses by adding a locking structure to achieve locking and disconnection of the switch in a physical state.
[0005] To solve the above technical problem, the technical solution of the utility model is: an electromagnetic switch with automatic locking, including a switch body, a self-locking mechanism, and a control mechanism; the switch body is used to control the opening or closing of the switch; the self-locking mechanism is located on one side of the switch body and is connected to the switch body; the self-locking mechanism is located on one side of the switch body and is connected to the switch body; the control mechanism is located above the switch body, is connected to the switch body, and is simultaneously connected to the self-locking mechanism; the switch body includes a main frame, a permanent magnet for the switch and a coil are arranged inside the main frame, the permanent magnet extends outward along the lower direction of the main frame, a contact for connection is arranged below, and the contact abuts against the lower part of the permanent magnet; at the same time, a connecting rod extends outward from the contact, and the connecting rod is connected to the self-locking mechanism;
[0006] The described self-locking mechanism includes a self-locking bracket, a locking bracket, a self-locking torsion spring, and a locking spring; the locking bracket is located on one side of the switch body and is fixedly connected to the switch body; the self-locking bracket is located on the locking bracket and moves freely on the locking bracket; the self-locking torsion spring is located below the locking bracket and abuts against the connecting rod, converting the rotation of the connecting rod into a rotational torque to provide power for the movement of the self-locking bracket; the locking spring is located below the self-locking bracket, with one end connected to the self-locking bracket and the other end connected to the locking bracket.
[0007] Further, the self-locking torsion spring is located on one side of the connecting rod. When the connecting rod is separated from the permanent magnet, the self-locking torsion spring drives the self-locking bracket to move upward. At the same time, due to the torque of the self-locking torsion spring forming a lateral force on the self-locking bracket, it deflects in the horizontal position and disengages from the locking bracket to form self-locking.
[0008] Further, a positioning table is provided on the self-locking bracket, and the positioning table cooperates with the self-locking bracket to limit the position of the self-locking bracket.
[0009] Further, the self-locking bracket includes a self-locking cross table, a moving frame, and a limiting boss; the self-locking cross table is located above the moving frame and is fixedly connected to the moving frame; the moving frame is located on the locking bracket and moves vertically relying on the locking bracket and abuts against the control mechanism; the limiting boss is located on the moving frame, is fixedly connected to the moving frame, and cooperates with the locking bracket.
[0010] Further, the moving frame includes a transverse bracket and a longitudinal bracket. The transverse bracket is located above the longitudinal bracket and is fixedly connected to the longitudinal bracket, and the bottom abuts against the locking spring; the longitudinal bracket is located below the transverse bracket and is distributed vertically, with one end cooperating with the self-locking bracket.
[0011] Further, a moving rod is also provided on the longitudinal bracket, and the moving rod cooperates with the locking bracket and moves up and down in the locking bracket to ensure the moving direction of the self-locking bracket.
[0012] Further, a control rod distributed in the vertical direction is provided on the moving frame. The control rod is located on one side of the control mechanism and abuts against the control mechanism.
[0013] Further, a moving groove is provided on the locking bracket, and the moving groove cooperates with the self-locking bracket.
[0014] Further, a limiting frame is provided on the locking frame, and the limiting frame is located on the positioning table and cooperates with the self-locking bracket.
[0015] Compared with the prior art, an automatically locked electromagnetic switch provided by the present utility model moves the self-locking bracket on the locking frame, and uses the pulling force of the locking spring to press the self-locking bracket upward against the switch body, preventing the permanent magnet on the switch body from contacting the contact on the connecting rod, ensuring that the switch will not be automatically turned on in the closed state, guaranteeing the safety of the electromagnetic switch, and at the same time reducing the risk of misoperation. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 The structural schematic diagram of the present utility model is shown.
[0017] Figure 2 The right view of the self-locking mechanism of the present utility model is shown.
[0018] Wherein: 1. Switch body, 2. Self-locking mechanism, 3. Control mechanism, 4. Main frame, 5. Permanent magnet, 6. Coil, 7. Connecting rod, 8. Self-locking bracket, 9. Locking frame, 10. Self-locking torsion spring, 11. Locking spring, 12. Positioning table, 13. Self-locking cross table, 14. Moving frame, 15. Limiting boss, 16. Transverse bracket, 17. Longitudinal bracket, 18. Limiting frame, 19. Moving rod, 20. Control rod, 21. Moving groove. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] As shown in the figure, an automatically locked electromagnetic switch includes a switch body 1, a self-locking mechanism 2 and a control mechanism 3; the switch body 1 is used to control the opening or closing of the switch; the self-locking mechanism 2 is located on one side of the switch body 1 and is connected to the switch body 1; the self-locking mechanism 2 is located on one side of the switch body 1 and is connected to the switch body 1; the control mechanism 3 is located above the switch body 1 and is connected to the switch body 1, and at the same time is connected to the self-locking mechanism 2; the switch body 1 includes a main frame 4, a permanent magnet 5 and a coil 6 for the switch are arranged inside the main frame 4, the permanent magnet 5 extends outward along the lower direction of the main frame 4, and a contact for connection is arranged below, and the contact abuts against the lower part of the permanent magnet 55; at the same time, a connecting rod 7 extends outward from the contact, and the connecting rod 7 is connected to the self-locking mechanism 2;
[0020] The described self-locking mechanism 2 includes a self-locking bracket 8, a locking bracket 9, a self-locking torsion spring 10, and a locking spring 11; the locking bracket 9 is located on one side of the switch body 1 and is fixedly connected to the switch body 1; the self-locking bracket 8 is located on the locking bracket 9 and moves freely on the locking bracket 9; the self-locking torsion spring 10 is located below the locking bracket 9 and abuts against the connecting rod 7, converting the rotation of the connecting rod 7 into a rotational torque to provide power for the movement of the self-locking bracket 8; the locking spring 11 is located below the self-locking bracket 8, with one end connected to the self-locking bracket 8 and the other end connected to the locking bracket 9.
[0021] Further, the self-locking torsion spring 10 is located on one side of the connecting rod 7. When the connecting rod 7 separates from the permanent magnet 5, the self-locking torsion spring 10 drives the self-locking bracket 8 to move upward. At the same time, due to the torque of the self-locking torsion spring 10 forming a lateral force on the self-locking bracket 8, it deflects in the horizontal position and disengages from the locking bracket 9 to form self-locking.
[0022] Further, a positioning table 12 is provided on the self-locking bracket 8, and the positioning table 12 cooperates with the self-locking bracket 8 to limit the position of the self-locking bracket 8.
[0023] Further, the self-locking bracket 8 includes a self-locking cross table 13, a moving frame 14, and a limiting boss 15; the self-locking cross table 13 is located above the moving frame 14 and is fixedly connected to the moving frame 14; the moving frame 14 is located on the locking bracket 9 and moves vertically depending on the locking bracket 9 and abuts against the control mechanism 3; the limiting boss 15 is located on the moving frame 14, is fixedly connected to the moving frame 14, and cooperates with the locking bracket 9.
[0024] Further, the moving frame 14 includes a transverse bracket 16 and a longitudinal bracket 17. The transverse bracket 16 is located above the longitudinal bracket 17 and is fixedly connected to the longitudinal bracket 17, and the bottom abuts against the locking spring 11; the longitudinal bracket 17 is located below the transverse bracket 16 and is distributed in the vertical direction, with one end cooperating with the self-locking bracket 8.
[0025] Further, a moving rod 19 is also provided on the longitudinal bracket 17. The moving rod 19 cooperates with the locking bracket 9 and moves up and down in the locking bracket 9 to ensure the moving direction of the self-locking bracket 8.
[0026] Furthermore, a control rod 20 distributed in the vertical direction is arranged on the moving frame 14. The control rod 20 is located on one side of the control mechanism 3 and abuts against the control mechanism 3.
[0027] Furthermore, a moving groove 21 is arranged on the locking frame 9. The moving groove 21 is matched with the self-locking bracket 8.
[0028] Furthermore, a limiting frame 18 is arranged on the locking frame 9. The limiting frame 18 is located on the positioning table 12 and is matched with the self-locking bracket 8.
[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than restrictive technical solutions. Those of ordinary skill in the art should understand that any modifications or equivalent replacements made to the technical solutions of the present invention without departing from the purpose and scope of the technical solutions should be covered within the scope of the claims of the present invention.
Claims
1. An automatic locking electromagnetic switch, characterized in that: The switch body comprises a switch body, a self-locking mechanism and a control mechanism; the switch body is used to control the opening or closing of the switch; the self-locking mechanism is located on one side of the switch body and connected to the switch body; the control mechanism is located above the switch body and connected to the switch body and the self-locking mechanism; the switch body comprises a main frame, a permanent magnet and a coil for the switch are arranged inside the main frame, the permanent magnet extends outwards from the bottom of the main frame, a contact for connection is arranged below, and the contact is in conflict with the bottom of the permanent magnet; at the same time, a connecting rod extends outwards from the contact, and the connecting rod is connected to the self-locking mechanism; The self-locking mechanism includes a self-locking bracket, a locking frame, a self-locking torsion spring and a locking spring; the locking frame is located on one side of the switch body and is fixedly connected to the switch body; the self-locking bracket is located on the locking frame and moves freely on the locking frame; the self-locking torsion spring is located below the locking frame and conflicts with the connecting rod, converting the rotation of the connecting rod into a rotational torque, providing power for the movement of the self-locking bracket; the locking spring is located below the self-locking bracket, one end of which is connected to the self-locking bracket, and the other end is connected to the locking frame.
2. An automatic locking electromagnetic switch according to claim 1, characterized in that: The self-locking torsion spring is located on one side of the connecting rod. When the connecting rod is separated from the permanent magnet, the self-locking torsion spring drives the self-locking bracket to move upward. At the same time, the torque of the self-locking torsion spring forms a lateral force on the self-locking bracket, causing it to deflect in a horizontal position and detach from the locking frame to form self-locking.
3. The automatic locking electromagnetic switch according to claim 1, characterized in that: A positioning platform is arranged on the self-locking bracket, and the positioning platform cooperates with the self-locking bracket to limit the position of the self-locking bracket.
4. The automatic locking electromagnetic switch according to claim 1, characterized in that: The self-locking bracket includes a self-locking horizontal platform, a moving frame and a limiting boss; the self-locking horizontal platform is located above the moving frame and is fixedly connected to the moving frame; the moving frame is located on the locking frame and moves in the vertical direction by relying on the locking frame, thereby conflicting with the control mechanism; the limiting boss is located on the moving frame, is fixedly connected to the moving frame, and cooperates with the locking frame.
5. An automatic locking electromagnetic switch according to claim 4, characterized in that: The mobile frame includes a transverse bracket and a longitudinal bracket. The transverse bracket is located above the longitudinal bracket, fixedly connected to the longitudinal bracket, and the bottom is in conflict with the locking spring; the longitudinal bracket is located below the transverse bracket, distributed in the vertical direction, and one end cooperates with the self-locking bracket.
6. An automatic locking electromagnetic switch according to claim 5, characterized in that: The longitudinal bracket is also provided with a moving rod, and the moving rod cooperates with the locking frame and moves up and down in the locking frame to ensure the moving direction of the self-locking bracket.
7. An automatic locking electromagnetic switch according to claim 4, characterized in that: The movable frame is provided with a control rod distributed in a vertical direction. The control rod is located at one side of the control mechanism and conflicts with the control mechanism.
8. The automatic locking electromagnetic switch according to claim 1, characterized in that: The locking frame is provided with a moving groove, and the moving groove matches with the self-locking bracket.
9. The automatic locking electromagnetic switch according to claim 3, characterized in that: A limiting frame is arranged on the locking frame, and the limiting frame is located on the positioning platform and cooperates with the self-locking bracket.