Electric power cabinet

Abstract

The invention discloses an electric power cabinet, and the cabinet comprises a cabinet body which is internally provided with a main switch and a plurality of sub-switches, and is provided with a door pin seat at the side part; the door body is hinged with the cabinet body and is provided with an inverted pressing type emergency stop switch; the door bolt is transversely arranged in the door body, is connected with a door bolt spring and can be inserted into the door bolt seat under the action of the door bolt spring; the cross rod is connected with the interior of the door body through a rotating shaft and can swing left and right around the rotating shaft, and a cross rod spring is connected between the cross rod and the door body; the longitudinal rod is longitudinally arranged in the door body and provided with a locking groove, the transverse rod is connected into the locking groove in a matched mode through the transverse rod spring so as to limit the longitudinal rod to move up and down, and the longitudinal rod can abut against the emergency stop switch to cut off a power source when moving upwards; the door handle is longitudinally arranged on the front face of the door body and provided with a sliding block capable of sliding in the door body. The first linkage mechanism is connected between the door handle and the door bolt; the second linkage mechanism is connected to the door bolt and the longitudinal rod; the button is arranged on the front face of the door body and extends into the door body to be connected with the transverse rod.

Description

Technical Field

[0001] This invention relates to the field of power equipment technology, and specifically to a power cabinet. Background Technology

[0002] As described in CN115547710A, most existing power cabinets do not have an automatic power-off function when the door is opened. In order to ensure safety, security personnel must disconnect the power cabinet before starting the maintenance work. If the security personnel forget to disconnect the power, a dangerous accident may occur during the maintenance work.

[0003] To address the above issues, CN115547710A incorporates a flexible mechanism. When the cabinet door is closed, this mechanism stores elastic potential energy and positions the first contact in the first placement position. When the door is opened, the mechanism releases this potential energy, causing the first contact to move to the second placement position. Through the coordination of various mechanisms and components, the distribution cabinet can automatically switch to a power-off state or remain powered on based on the door's opening or closing status, eliminating the need for pre-emptive power-off procedures. This simplifies maintenance and inspection work and avoids the danger of forgetting to disconnect the power. However, CN115547710A only disconnects the power cabinet when the door is open, and there is a possibility of accidental power disconnection due to the door opening unexpectedly. In other words, CN115547710A suffers from delayed or accidental power disconnection. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a power cabinet to overcome the technical defects existing in the prior art.

[0005] To solve the above problems, the present invention adopts the following technical solution: An electrical cabinet of the present invention includes: The cabinet has a main switch and several sub-switches inside, and a door latch seat on the side. The door is hinged to the cabinet and is equipped with an inverted push-button emergency stop switch; The door pin is horizontally installed inside the door and connected to a door pin spring, and can be inserted into the door pin seat under the action of the door pin spring; The crossbar is connected to the inside of the door through a pivot and can swing left and right around the pivot. A crossbar spring connects the crossbar to the door. The vertical bar is set longitudinally inside the door and has a lock groove. The crossbar spring connects the crossbar to the lock groove to restrict the vertical movement of the vertical bar. When the vertical bar moves upward, it can press the emergency stop switch to cut off the power. The door handle is vertically positioned on the front of the door and has a slider that can slide inside the door. The first linkage mechanism connects the door handle and the door latch; The second linkage mechanism connects the door pin and the longitudinal rod; The button is located on the front of the door and extends into the door body to connect with the crossbar. When the button is pressed and the crossbar is disengaged from the lock groove, the door handle can move from the inside to the outside relative to the front of the door under the action of external force, so as to drive the door pin to be completely pulled out of the door pin seat through the first linkage mechanism, and at the same time drive the vertical bar to move upward through the second linkage mechanism to press the emergency stop switch.

[0006] In one of the aforementioned power cabinets, the vertical rod is connected to an L-shaped rod, the vertical part of which is located below the emergency stop switch, and the horizontal part of which extends into the door body and connects to the vertical rod.

[0007] In one of the aforementioned power cabinets, the first linkage mechanism includes a first linkage wheel, a second linkage wheel, and a linkage rope. The first linkage wheel is connected to the door handle, the second linkage wheel is connected to the door pin, and the linkage rope is sleeved between the first linkage wheel and the second linkage wheel.

[0008] In one of the aforementioned power cabinets, the door handle is configured to move from the inside out or from the outside in the door body.

[0009] In one of the aforementioned power cabinets, the door handle is a U-shaped handle, and each of the U-shaped open ends of the handle extending into the door body is connected to a slider, with the lower slider connected to the first linkage wheel.

[0010] In one of the aforementioned power cabinets, a guide wheel for winding the linkage rope is provided between the first linkage wheel and the second linkage wheel, and the guide wheel is connected to the door.

[0011] In one of the aforementioned power cabinets, the second linkage mechanism includes a first irregularly shaped wheel and a second irregularly shaped wheel that are connected to each other in a transmission manner. The first irregularly shaped wheel is connected to a door pin, and the second irregularly shaped wheel is connected to a longitudinal rod.

[0012] In one of the aforementioned power cabinets, the first irregularly shaped wheel is coaxially connected to a first transmission wheel, and the second irregularly shaped wheel is coaxially connected to a second transmission wheel. The first transmission wheel and the second transmission wheel are connected by a belt drive.

[0013] In one of the aforementioned power cabinets, a door pin post is provided on the door pin, and the door pin post abuts against the first irregularly shaped wheel to achieve linkage.

[0014] In one of the aforementioned power cabinets, a longitudinal column is provided on the longitudinal rod, and the longitudinal column abuts against the second irregular wheel to achieve linkage.

[0015] The door handle of the power cabinet of the present invention, when driving the door pin to pull away from the door pin seat through the first linkage mechanism, will drive the vertical bar to move upward through the second linkage mechanism to press the emergency stop switch to cut off the power supply. In this way, the purpose of timely power cut-off during the opening process is achieved. Moreover, the door handle can only be activated to open the door and cut off the power when the button is pressed and the horizontal bar is disengaged from the lock groove. The phenomenon of accidental power cut-off of the power cabinet due to accidental opening of the door will not occur. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the power cabinet in Embodiment 1 of the present invention after the door is closed (the door handle is reset); Figure 2 yes Figure 1 A schematic diagram of the internal structure of the central gate; Figure 3 yes Figure 1 Schematic diagram of the internal structure of the back of the central door; Figure 4 This is a schematic diagram of the structure of the power cabinet in Embodiment 1 of the present invention after the door is opened (the door handle is not reset); Figure 5 yes Figure 4 A schematic diagram of the internal structure of the central gate; Figure 6 This is a schematic diagram of the structure of the power cabinet in Embodiment 2 of the present invention after the door is opened (the door handle is not reset); Figure 7 yes Figure 6 A schematic diagram of the internal structure of the central gate; Figure 8 This is a schematic diagram of the internal structure of the front of the power cabinet after the door is closed (the door handle is reset) in Embodiment 2 of the present invention.

[0018] In the diagram: 1 is the cabinet body, 2 is the door body, 3 is the door pin, 4 is the door handle, 5 is the first linkage mechanism, 6 is the main switch, 7 is the sub-switch, 8 is the door pin seat, 9 is the door pin spring, 10 is the slider, 11 is the guide post, 12 is the first linkage wheel, 13 is the second linkage wheel, 14 is the guide wheel, 15 is the linkage rope, 16 is the vertical rod, 17 is the horizontal rod, 18 is the lock groove, 19 is the rotating shaft, 20 is the horizontal rod spring, 21 is the second linkage mechanism, 22 is the button, 23 is the first irregular wheel, 24 is the second irregular wheel, 25 is the first transmission wheel, 26 is the second transmission wheel, 27 is the door pin post, 28 is the vertical rod post, 29 is the vertical rod spring, 30 is the emergency stop switch, and 31 is the L-shaped rod. Detailed Implementation

[0019] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the present invention. Example 1:

[0020] See Figures 1 to 5 As shown, an electrical cabinet in this embodiment includes a cabinet body 1, a door body 2, a door pin 3, a door handle 4, and a first linkage mechanism 5. The cabinet body 1 is equipped with a main switch 6 and several sub-switches 7, all of which are electrically connected to the main switch 6. A door pin seat 8 is provided on the side of the cabinet body 1. One side of the door body 2 is hinged to the cabinet body 1, while the other side of the door body 2 is a free end and can rotate. The door pin 3 is horizontally disposed inside the door body 2 and connected to a door pin spring 9. Under the action of the door pin spring 9, it can insert into the door pin seat 8. That is, under normal conditions, the door pin spring 9 pushes the door pin 3 against the door body 2. The door handle 4 is vertically disposed on the front of the door body 2. The door handle 4 extends into the door body 2 and is equipped with a slider 10 that can slide inside the door body 2. Thus, the door handle 4 is configured to move from the inside to the outside or from the outside to the inside within the door body 2. The slider 10 has a first position at the innermost end and a position at the outermost end. In the second position, when the slider 10 is in the first position, the door pin 3 is inserted into the door pin seat 8. When the slider 10 is in the second position, the door pin 3 is completely withdrawn from the door pin seat 8. The gap formed between the first and second positions is the safety displacement. The first linkage mechanism 5 is connected between the slider 10 and the door pin 3. The door handle 4 is configured to move a safe displacement relative to the front of the door body 2 from the inside to the outside under the action of external force before the door pin 3 can be completely withdrawn from the door pin seat 8 by the slider 10 and the first linkage mechanism 5. The safety displacement plays the role of safety locking, which eliminates the complex mechanical locks used in the existing technology. Moreover, after the external force disappears, the door handle 4 is synchronously reset with the door pin 3 under the action of the door pin spring 9. In this way, the door pin 3 extends out of the door body 2 to prevent the door body 2 from closing accidentally, ensuring that the door body 2 will not close accidentally after a short maintenance interruption, which is convenient for security personnel to conduct security checks.

[0021] In this embodiment, the door body 2 is provided with a slider cavity, and the two side walls of the slider cavity are provided with guide post grooves. The slider 10 is provided with guide posts 11 on both sides. The slider 10 is located in the slider cavity, and the guide posts 11 are located in the guide post grooves. The slider cavity and / or guide post grooves allow the slider 10 to slide between a first position and a second position. The door handle 4 is a U-shaped door handle. The U-shaped opening end of the U-shaped door handle extends into the door body 2 and is connected to the slider 10. The lower end of the slider 10 is connected to a first linkage mechanism 5. The first linkage mechanism 5 includes a first linkage wheel 12, a second linkage wheel 13, a guide wheel 14, and a linkage rope 15. The first linkage wheel 12 is connected to the lower end of the slider 10, the second linkage wheel 13 is connected to the door pin 3, and the guide wheel 14 is connected to the door body 2 and located between the first linkage wheel 12 and the second linkage wheel 13. The linkage rope sleeve 15 is provided on the first linkage wheel 12, the second linkage wheel 13, and the guide wheel 14.

[0022] To further enhance security, this embodiment includes a longitudinally arranged vertical bar 16 and a transversely arranged horizontal bar 17 inside the door body 2. The vertical bar 16 has a lock groove 18 that engages with the horizontal bar 17. After the horizontal bar 17 engages with the lock groove 18, it restricts the vertical movement of the vertical bar 16. The horizontal bar 17 is connected to the inside of the door body 2 via a pivot 19 and can swing left and right around the pivot 19. A horizontal bar spring 20 connects the horizontal bar 17 to the door body 2. The horizontal bar spring 20 engages the horizontal bar 17 within the lock groove 18 to restrict the vertical movement of the vertical bar 16. A second linkage mechanism 21 is provided between the vertical bar 16 and the door pin 3. During the process of the door handle 4 moving from the inside to the outside relative to the front of the door body 2, the door pin 3 drives the vertical bar 16 to move upward via the second linkage mechanism 21. The front of the door body 2 has a portion extending into it. Button 22 extends into the door body 2 and connects to the crossbar 17. When button 22 is pressed and the crossbar 17 disengages from the lock groove 18, the door handle 4 can move from the inside to the outside relative to the front of the door body 2 under the action of external force, so as to drive the door pin 3 to completely disengage from the door pin seat 8 through the first linkage mechanism 5. After the external force disappears, button 22 and the crossbar 17 reset synchronously under the action of the crossbar spring 20. If button 22 is not pressed to unlock the vertical bar 16, then the door handle 4 cannot move from the inside to the outside relative to the front of the door body 2 under the action of external force to open the door. This is because the vertical bar 16 cannot move if it is not unlocked, and consequently the second linkage mechanism 21 and the door pin 3 cannot move, ultimately causing the door handle 4 to be unable to move, that is, the door body 2 cannot be opened, thus better realizing the safety locking.

[0023] In this embodiment, the second linkage mechanism 21 includes a first irregular wheel 23 and a second irregular wheel 24 that are connected to each other. The first irregular wheel 23 is coaxially connected to a first transmission wheel 25, and the second irregular wheel 24 is coaxially connected to a second transmission wheel 26. The first transmission wheel 25 and the second transmission wheel 26 are connected by belt drive, so that the first irregular wheel 23 and the second irregular wheel 24 are connected synchronously. A door pin 27 is provided on the door pin 3, and the door pin 27 abuts against the first irregular wheel 23 to achieve linkage, so that the first irregular wheel 23 is connected to the door pin 3. A longitudinal rod 28 is provided on the longitudinal rod 16, and the longitudinal rod 28 abuts against the second irregular wheel 24 to achieve linkage, so that the second irregular wheel 24 is connected to the longitudinal rod 16. The longitudinal rod 16 is provided with a longitudinal rod spring 29, which is used for the reset of the longitudinal rod 16 and the second irregular wheel 24. Example 2:

[0024] Combination Figures 6 to 8 Unlike Embodiment 1, this embodiment features an inverted push-button emergency stop switch 30 on the back of the door 2. When the vertical rod 16 moves upward, it presses against the emergency stop switch 30 to cut off the power. The vertical rod 16 is connected to an L-shaped rod 31, with the vertical part of the L-shaped rod 31 located below the emergency stop switch 30 and the horizontal part of the L-shaped rod 31 extending into the door 2 and connecting to the vertical rod 16. When the button 22 is pressed and the horizontal rod 17 disengages from the lock groove 18, the door handle 4 can move from the inside to the outside relative to the front of the door 2 under external force. This allows the door pin 3 to be completely pulled away from the door pin seat 8 via the first linkage mechanism 5. Simultaneously, the vertical rod 16 moves upward via the second linkage mechanism 21 to press against the emergency stop switch 30. This achieves the purpose of timely power cut-off during door opening. Furthermore, the door handle 4 can only operate to open the door and cut off the power when the button 22 is pressed and the horizontal rod 17 disengages from the lock groove 18. This prevents the door 2 from accidentally opening and causing an unexpected power outage in the power cabinet.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A power switchboard, characterized in that, include: The cabinet has a main switch and several sub-switches inside, and a door latch seat on the side. The door is hinged to the cabinet and is equipped with an inverted push-button emergency stop switch; The door pin is horizontally installed inside the door and connected to a door pin spring, and can be inserted into the door pin seat under the action of the door pin spring; The crossbar is connected to the inside of the door through a pivot and can swing left and right around the pivot. A crossbar spring connects the crossbar to the door. The vertical bar is set longitudinally inside the door and has a lock groove. The crossbar spring connects the crossbar to the lock groove to restrict the vertical movement of the vertical bar. When the vertical bar moves upward, it can press the emergency stop switch to cut off the power. The door handle is vertically positioned on the front of the door and has a slider that can slide inside the door. The first linkage mechanism connects the door handle and the door latch; The second linkage mechanism connects the door pin and the longitudinal rod; The button is located on the front of the door and extends into the doorway to connect with the crossbar. When the button is pressed and the crossbar is disengaged from the lock groove, the door handle can move from the inside to the outside relative to the front of the door under the action of external force, so as to drive the door pin to be completely pulled out of the door pin seat through the first linkage mechanism, and at the same time drive the vertical bar to move upward through the second linkage mechanism to press the emergency stop switch.

2. The power cabinet according to claim 1, characterized in that, The vertical rod is connected to an L-shaped rod. The vertical part of the L-shaped rod is located below the emergency stop switch, and the horizontal part of the L-shaped rod extends into the door body and connects to the vertical rod.

3. A power cabinet according to claim 1, characterized in that, The first linkage mechanism includes a first linkage wheel, a second linkage wheel, and a linkage rope. The first linkage wheel is connected to the door handle, the second linkage wheel is connected to the door pin, and the linkage rope is sleeved between the first linkage wheel and the second linkage wheel.

4. A power cabinet according to claim 3, characterized in that, The door handle is configured to move from the inside out or from the outside in within the door.

5. A power cabinet according to claim 3, characterized in that, The door handle is a U-shaped door handle, and each of the U-shaped open ends of the door handle that extends into the door body is connected to a slider. The lower slider is connected to the first linkage wheel.

6. A power cabinet according to claim 3, characterized in that, A guide wheel is provided between the first linkage wheel and the second linkage wheel for the linkage rope to be wound, and the guide wheel is connected to the door body.

7. A power cabinet according to claim 1, characterized in that, The second linkage mechanism includes a first irregular wheel and a second irregular wheel that are connected to each other through transmission. The first irregular wheel is connected to a door pin, and the second irregular wheel is connected to a longitudinal rod.

8. A power cabinet according to claim 7, characterized in that, The first irregularly shaped wheel is coaxially connected to the first transmission wheel, and the second irregularly shaped wheel is coaxially connected to the second transmission wheel. The first transmission wheel and the second transmission wheel are connected by belt drive.

9. A power cabinet according to claim 7, characterized in that, The pin is provided with a pin post, which abuts against the first irregular wheel to achieve linkage.

10. A power cabinet according to claim 7, characterized in that, A longitudinal post is provided on the longitudinal rod, and the longitudinal post abuts against the second irregular wheel to achieve linkage.

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