Contactor for emergency mechanical forced start

Abstract

The utility model discloses a contactor for emergency mechanical forced starting, which comprises a control handle connecting seat, the end part of the control handle connecting seat is connected with one end of a first crank, the control handle connecting seat is provided with a square hole for connecting a control handle, and the control handle controls the first crank to rotate through the control handle connecting seat. The other end of the first crank is hinged to one end of a second crank, the hinged position of the first crank and the second crank is arranged in a crank sliding rail, the other end of the second crank is hinged to a sliding block, a sliding way matched with the sliding block is arranged below the sliding block, and an ejector rod is arranged at one end of the sliding block. The ejector rod is connected or disconnected with a contact on the contactor through driving of the sliding block, the ejector rod is a magnetic conductor, the contact is connected with the electromagnet, the hinged position of the first crank and the second crank is connected with one end of the extension spring, and the other end of the extension spring is connected with a spring fixing base arranged beside the control handle.

Description

Technical Field

[0001] The utility model relates to a contactor used for emergency mechanical forced starting. Background Art

[0002] In industrial and power systems, contactors are essential components for controlling high-power electrical equipment such as motors and transformers, and are widely used to control the start and stop of these devices. However, traditional contactors often rely on electrical control systems. In emergency situations, such as system failures or power outages, this reliance on electrical control for start and stop operations is limited and may not respond quickly. Furthermore, existing contactors are complex to maintain and difficult to operate, making them unsuitable for emergency use. Therefore, it is crucial to design a contactor that can achieve mechanical forced start in emergency situations while remaining simple in structure and easy to maintain. Utility Model Content

[0003] The purpose of the utility model is to solve the above deficiencies in the prior art and to provide a contactor that is easy to connect and is used for emergency mechanical forced starting.

[0004] A contactor for emergency mechanical forced starting, including a manipulation handle connecting seat, the end of the manipulation handle connecting seat is connected to one end of the first crank, the manipulation handle connecting seat is provided with a square hole for connecting the manipulation handle, the manipulation handle controls the rotation of the first crank through the manipulation handle connecting seat, the other end of the first crank is hingedly connected to one end of the second crank, the hinge of the first crank and the second crank is arranged in the crank slide rail, the other end of the second crank is hingedly connected to the slider, a slide matching it is provided below the slider, a push rod is provided at one end of the slider, the push rod is connected or disconnected with the contact on the contactor by the drive of the slider, the push rod is a magnetic conductor, the contact is connected to the electromagnet, the hinge of the first crank and the second crank is connected to one end of the tension spring, and the other end of the tension spring is connected to the spring fixing seat provided next to the manipulation handle.

[0005] As a further improvement, a box body is provided on the outside of the contactor, a side maintenance window is provided on the side of the box body close to the spring fixing seat, and a front maintenance window is provided on the front of the box body close to the operating handle connecting seat.

[0006] As a further improvement, the side maintenance window and the front maintenance window include a window body and a window, one side of the window body is connected to the window through a hinge, and the other side of the window body is connected to the window through a safety lock.

[0007] As a further improvement, the safety lock is a mechanical lock, a password lock or a fingerprint lock.

[0008] As a further improvement, the side maintenance window and the front maintenance window are both provided with a linked power-off device, and when the maintenance window is opened, the equipment is automatically powered off.

[0009] As a further improvement, the side maintenance window and the front maintenance window are both provided with an electrostatic discharge device, which automatically discharges the static electricity accumulated inside the equipment before the maintenance operation begins.

[0010] Beneficial effects:

[0011] The design of this utility model has a strong emergency response capability. In emergency situations such as system failure or power outage, the equipment can be quickly started or stopped through the mechanical forced start device, ensuring that the emergency situation is handled in a timely manner.

[0012] The design of this utility model is easy to maintain. The design of the maintenance window makes the daily maintenance and repair of the equipment more convenient, reduces the equipment downtime, and improves the reliability of the equipment operation;

[0013] The mechanical control lever of the utility model is humanized in design and easy to operate. Emergency start and stop operations can be completed without professional skills, and it is suitable for various emergency occasions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a contactor used for emergency mechanical forced starting;

[0015] Figure 2 This is an external side view of the overall structure of a contactor used for emergency mechanical forced starting;

[0016] 1. Joystick connector 2. First crank 3. Second crank 4. Crank rail 5. Slider 6. Slide 7. Ejector rod 8. Contact 9. Electromagnet 10. Contactor 11. Extension spring 12. Spring retainer 13. Side maintenance window 14. Front maintenance window DETAILED DESCRIPTION

[0017] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0018] like Figures 1-2 As shown, a contactor for emergency mechanical forced starting includes a control handle connecting base 1, a first crank 2, a second crank 3, a crank slide 4, a slider 5, a slide 6, a push rod 7, a contact 8, an electromagnet 9, a contactor 10, a tension spring 11, a spring fixing seat 12, a side maintenance window 13, and a front maintenance window 14.

[0019] A contactor for emergency mechanical forced start, including a joystick connection base 1, the end of the joystick connection base 1 is connected to one end of the first crank 2, the joystick connection base 1 is provided with a square hole for connecting the joystick, the joystick controls the rotation of the first crank 2 through the joystick connection base 1, the other end of the first crank 2 is hingedly connected to one end of the second crank 3, the hinge of the first crank 2 and the second crank 3 is arranged in the crank slide 4, the other end of the second crank 3 is hingedly connected to the slider 5, the slider 5 is provided with a matching slide 6 below, one end of the slider 5 is provided with a push rod 7, the push rod 7 is connected or disconnected with the contact 8 on the contactor 10 by the drive of the slider 5, the push rod 7 is a magnetic conductor, the contact 8 is connected to the electromagnet 9, the hinge of the first crank 2 and the second crank 3 is connected to the tension spring One end of the tension spring 11 is connected, and the other end of the tension spring 11 is connected to the spring fixing seat 12 provided next to the operating handle; a box is provided on the outside of the contactor 10, and a side maintenance window 13 is provided on the side of the box close to the spring fixing seat 12, and a front maintenance window 14 is provided on the front of the box close to the operating handle connecting seat 1; the side maintenance window 13 and the front maintenance window 14 include a window body and a window, one side of the window is connected to the window by a hinge, and the other side of the window is connected to the window by a safety lock; the safety lock is a mechanical lock, a password lock or a fingerprint lock; the side maintenance window 13 and the front maintenance window 14 are both provided with a linkage power-off device, and when the maintenance window is opened, the power of the equipment is automatically cut off; the side maintenance window 13 and the front maintenance window 14 are both provided with an electrostatic discharge device, which automatically releases the static electricity accumulated inside the equipment before the maintenance operation begins.

[0020] The contactor 10 of the present invention has two states: disconnected and connected. When the contactor 10 needs to be connected, the first crank 2, the second crank 3 and the slider 5 are manipulated by the handle to push the push rod 7 to the position of the contact 8. The electromagnet 9 connected to the contact 8 is in the energized state. At this time, the contact 8 has a magnetic force, which offsets the tension of the tension spring 11 and firmly attracts the push rod 7 and the contact 8 together, so that the contact 10 is in the connected state.

[0021] When the contactor 10 needs to be disconnected, the electromagnet 9 on the contact 8 is powered off, the magnetic force of the contact 8 disappears, and the first crank 2 is rotated by the handle. Under the action of the spring tension, the tension spring 11 is reset, and the push rod 7 is away from the contact 8, so that the contactor 10 is in the disconnected state.

[0022] The utility model can start the equipment by mechanical forced start in emergency situations, is simple to operate, safe and reliable, and has good maintenance convenience, and is suitable for industrial and power systems that require rapid response and high safety.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A contactor for emergency mechanical forced start, characterized in that: The control wheel is connected with the control wheel shaft through the control wheel shaft, and the control wheel shaft is connected with the control wheel shaft through the control wheel shaft.

2. A contactor for emergency mechanical forced start according to claim 1, characterized in that: A box body is provided on the outside of the contactor, a side maintenance window is provided on the side of the box body close to the spring fixing seat, and a front maintenance window is provided on the front of the box body close to the operating handle connecting seat.

3. A contactor for emergency mechanical forced start according to claim 2, characterized in that: The side maintenance window and the front maintenance window comprise a window body and a window, one side of the window body is connected to the window through a hinge, and the other side of the window body is connected to the window through a safety lock.

4. A contactor for emergency mechanical forced start according to claim 3, characterized in that: The safety lock is a mechanical lock, a password lock or a fingerprint lock.

5. A contactor for emergency mechanical forced start according to claim 2, characterized in that: The side maintenance window and the front maintenance window are both provided with a linkage power-off device. When the maintenance window is opened, the equipment is automatically powered off.

6. A contactor for emergency mechanical forced start according to claim 2, characterized in that: The side maintenance window and the front maintenance window are both provided with an electrostatic discharge device, which automatically discharges the static electricity accumulated inside the equipment before the maintenance operation begins.

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