Mechanical interlock for switch cabinet

Abstract

The utility model relates to the field of machinery, in particular to a mechanical interlock for a switch cabinet, which comprises a cabinet body, a cabinet door, buckle plates, a handle groove, a rotary handle and a screw rod, the cabinet door for separating the space inside and outside the cabinet is mounted on the left side of the cabinet door, the two buckle plates for locking the cabinet door are mounted on the left side of the front end of the cabinet door, and the handle groove is formed in the middle of the bottom of the cabinet door. A rotatable rotating handle is arranged at the bottom in the cabinet body, and a screw rod capable of stretching and retracting by rotating the rotating handle is mounted behind the rotating handle; by adding the buckle plate, the rotating handle and the screw rod, the switch cabinet can be used for adjusting the positions or spacing of components in the switch cabinet, can realize accurate adjustment and positioning of the internal components, can be used as a safety device for locking a cabinet door, improves the safety and the adaptability of the switch cabinet, effectively avoids electrical accidents caused by misoperation, and improves the safety of the switch cabinet. The life safety of operators and the normal operation of equipment are guaranteed, and the front and back positions of the loading plate can be finely adjusted by rotating the screw rod, so that different mounting requirements and operating environments can be better met.

Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to a mechanical interlock for a switch cabinet. Background Art

[0002] With the continuous development and increasing intelligence of power systems, the requirements for the safety and reliability of switchgear are becoming increasingly higher. At the same time, relevant safety standards and specifications are also constantly being improved, prompting switchgear manufacturers to continuously seek more advanced and reliable safety interlocking technologies. Mechanical interlocking, as a mature safety technology, plays an important role in meeting these needs.

[0003] Traditional switchgear uses mechanical interlocks in some emergency situations where quick switching operations may be required. However, due to its complex structure and operating procedures, mechanical interlocks may delay operation time, affecting the system's emergency response capabilities. Operation signs are not clear enough, or the operation feel is not obvious, which can easily lead to operators misjudging the operating status and causing erroneous operations.

[0004] Therefore, in order to address the problems of inflexible operation and easy misoperation of the above-mentioned traditional switch cabinet, a mechanical interlock for the switch cabinet can be designed. By adding snap plates, rotating handles and screws, the position or spacing of components inside the switch cabinet can be adjusted, and precise adjustment and positioning of internal components can be achieved. As a safety device, locking the cabinet door improves the safety and adaptability of the switch cabinet, effectively avoids electrical accidents caused by misoperation, and ensures the life safety of operators and the normal operation of equipment. Utility Model Content

[0005] In order to overcome the problems of inflexible operation and easy misoperation of traditional switch cabinets.

[0006] The technical solution of the utility model is: a mechanical interlock for a switch cabinet, comprising a cabinet body, a cabinet door, a snap plate, a handle groove, a rotary handle and a screw; a cabinet door for partitioning the space inside and outside the cabinet is installed on the left side of the cabinet door; two snap plates for locking the cabinet door are installed on the left front end of the cabinet door; a handle groove is provided in the middle of the bottom of the cabinet door; a rotatable rotary handle is provided at the bottom of the cabinet body; a screw that can be extended and retracted by rotating the rotary handle is installed behind the rotary handle.

[0007] Preferably, by adding snap plates, rotating handles and screws, the position or spacing of components inside the switch cabinet can be adjusted, and precise adjustment and positioning of internal components can be achieved. As a safety device, locking the cabinet door improves the safety and adaptability of the switch cabinet, effectively avoids electrical accidents caused by misoperation, and ensures the life safety of operators and the normal operation of equipment.

[0008] Preferably, a heat dissipation slot is provided at the bottom right side of the cabinet, an installation slot is provided at the front left side of the cabinet, a partition is installed inside the cabinet, a rod cover is installed inside the right side of the cabinet at the bottom of the partition, a telescopic connecting rod is installed inside the rod cover, and a pin is installed at the output end of the telescopic connecting rod. The partition installed inside the cabinet can divide the internal space of the cabinet, so that different electrical components or equipment can be installed in different areas more orderly, avoiding mutual interference and confusion between components, and making the operating mechanism of the switch cabinet more flexible. When the pin is in the inserted state, it can effectively prevent the cabinet door of the switch cabinet from being accidentally opened, avoiding the operator from touching the live parts without knowing it, thereby reducing the probability of electric shock accidents.

[0009] Preferably, a roller is installed in the mounting groove on the left side of the cabinet body, a roller sleeve is installed outside the roller, and a cabinet door is installed outside the roller sleeve. An assembly groove is opened on the surface of the cabinet door, and a handle groove is opened below the assembly groove. The snap plate is magnetically connected to the left side of the cabinet door through the magnetic block installed on the back. When the cabinet door needs to be opened or closed, the rotation of the roller makes the movement of the cabinet door easier and more comfortable, overcoming the problems of jamming and heaviness that may exist in traditional switch cabinet doors, and greatly improving the flexibility of operation. When the cabinet door is closed, the snap plate can be firmly adsorbed on the cabinet door to prevent the cabinet door from opening accidentally.

[0010] Preferably, a locking rod corresponding to the hole on the surface of the screw is provided inside the rotating handle, a trapezoidal connecting piece is installed behind the rotating handle, a cross bar is installed behind the trapezoidal connecting piece, the four corners of the cross bar are arc-shaped chamfered structures, a No. 1 circular groove is provided on the upper end surface of the cross bar, movable iron buckles are installed at both ends of the cross bar, an inclined groove is provided at the arc-shaped chamfered structure above the movable iron buckle, and a circular hole is provided through the middle of the trapezoidal connecting piece and the cross bar. The movement of the screw can be precisely controlled by rotating the handle. When fine adjustments are required, the locking rod can cooperate with the hole in the screw to achieve precise positioning and locking, thereby improving the accuracy and controllability of the operation. When the screw moves to a specific position, the movable iron buckle can interact with other components inside the cross bar to achieve the function of locking or unlocking.

[0011] Preferably, L-shaped connecting plates are installed on both sides of the loading plate, two circular holes are provided on the upper surface of the L-shaped connecting plate, a limit guide plate is installed on the right side of the L-shaped connecting plate, rollers are installed at the front and rear ends of the L-shaped connecting plate, a switch closing plate is installed in front of the rear roller, and a circular hole and a square groove are provided on the front end surface of the loading plate. The rollers make the loading plate and the components thereon move more smoothly in the switch cabinet, and the operator can find the operating position more accurately when performing the closing operation, which can provide additional support and protection for the loading plate and enhance the overall structural stability of the switch cabinet.

[0012] Preferably, a screw is installed inside the circular hole on the front end surface of the loading plate, a No. 2 circular groove is opened on the front end surface of the screw, a limit nut is installed inside the front end of the loading plate, a clamping plate is installed at the tail end of the screw, and a round rod is installed at the rear of the loading plate. The front and rear position of the loading plate can be fine-tuned by rotating the screw to better adapt to different installation requirements and operating environments, thereby ensuring the stability of the screw during the adjustment process and providing additional support and fixation for the loading plate.

[0013] Preferably, an observation ruler is installed inside the square groove on the front end surface of the loading plate, a locking rod is installed at the front end of the observation ruler, the locking rod is inserted into the No. 1 circular groove, a ruler rail is installed at the position of the observation ruler inside the loading plate, a circular table is installed around the loading plate, a controller is installed on the right side of the loading plate, and a switch assistant is installed in front of the controller, so that the position and movement of the loading plate can be understood intuitively. The locking rod is inserted into the No. 1 circular groove to fix the observation ruler in a specific position to prevent it from accidentally moving during operation. Through the controller, the operator can remotely control the switch operation of the switch cabinet, adjust electrical parameters, etc., reducing the risks brought by direct contact with the switch cabinet.

[0014] Beneficial effects of the utility model:

[0015] 1. By adding snap plates, rotating handles and screws, the position or spacing of components inside the switch cabinet can be adjusted, which can achieve precise adjustment and positioning of internal components. As a safety device, locking the cabinet door improves the safety and adaptability of the switch cabinet, effectively avoids electrical accidents caused by misoperation, and ensures the safety of operators and the normal operation of equipment.

[0016] 2. Installing partitions inside the cabinet can divide the internal space of the cabinet, so that different electrical components or equipment can be installed in different areas more orderly, avoiding mutual interference and confusion between components, making the operating mechanism of the switch cabinet more flexible, and when the pin is in the inserted state, it can effectively prevent the cabinet door from being accidentally opened, preventing operators from unknowingly touching live parts, thereby reducing the probability of electric shock accidents;

[0017] 3. The front and rear position of the loading plate can be fine-tuned by rotating the screw to better adapt to different installation requirements and operating environments. It can ensure the stability of the screw during the adjustment process and provide additional support and fixation for the loading plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shown is a schematic diagram of a first three-dimensional structure of a mechanical interlock for a switch cabinet according to the present invention;

[0019] Figure 2 Shown is a schematic diagram of the three-dimensional structure of a mechanical interlocking cabinet for a switch cabinet of the present invention;

[0020] Figure 3 Shown is a schematic diagram of the three-dimensional structure of a mechanical interlocking cabinet door for a switch cabinet of the present invention;

[0021] Figure 4 Shown is a schematic diagram of the three-dimensional structure of a mechanical interlocking rotary handle for a switch cabinet of the present invention;

[0022] Figure 5 Shown is a schematic diagram of the three-dimensional structure of a mechanical interlocking screw for a switch cabinet according to the present invention.

[0023] Explanation of the accompanying reference numerals: 1. Cabinet body; 2. Cabinet door; 3. Snap plate; 4. Handle groove; 5. Rotating handle; 6. Screw; 7. Partition; 8. Mounting groove; 9. Rod cover; 10. Telescopic connecting rod; 11. Latch; 12. Assembly groove; 13. Roller sleeve; 14. Roller; 15. Trapezoidal connector; 16. Cross bar; 17. Movable iron buckle; 18. No. 1 circular groove; 19. Oblique groove; 20. No. 2 circular groove; 21. Loading plate; 22. Observation ruler; 23. L-shaped connecting plate; 24. Limit guide plate; 25. Roller; 26. Switch closing plate; 27. Round table; 28. Controller; 29. Limit nut; 30. Card plate; 31. Ruler rail; 32. Round rod; 33. Switch auxiliary device. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] See also Figure 1-Figure 3The utility model provides an embodiment: a mechanical interlock for a switch cabinet, comprising a cabinet body 1, a cabinet door 2, a snap plate 3, a handle groove 4, a rotary handle 5 and a screw 6. The cabinet door 2 is installed on the left side to separate the space inside and outside the cabinet. Two snap plates 3 for locking the cabinet door 2 are installed on the left side of the front end of the cabinet door 2. A handle groove 4 is provided in the middle of the bottom of the cabinet door 2. A rotatable rotary handle 5 is provided at the bottom of the cabinet body 1. A screw 6 that can be extended and retracted by rotating the rotary handle 5 is installed behind the rotary handle 5. By adding the snap plate 3, the rotary handle 5 and the screw 6, It can be used to adjust the position or spacing of components inside the switch cabinet, and can achieve precise adjustment and positioning of internal components. As a safety device, locking the cabinet door 2 improves the safety and adaptability of the switch cabinet, effectively avoids electrical accidents caused by misoperation, and ensures the life safety of operators and the normal operation of equipment. A heat dissipation slot is provided at the bottom of the right side of the cabinet 1, and a mounting slot 8 is provided at the front end of the left side of the cabinet 1. A partition 7 is installed inside the cabinet 1, and a rod cover 9 is installed inside the right side of the cabinet 1 at the bottom of the partition 7. A telescopic connecting rod 10 is installed inside the rod cover 9, and a pin 11 is installed at the output end of the telescopic connecting rod 10. The partition 7 installed inside the cabinet 1 can divide the internal space of the cabinet 1, so that different electrical components or equipment can be installed in different areas more orderly, avoiding mutual interference and confusion between components, and making the operating mechanism of the switch cabinet more flexible. When the pin 11 is in the inserted state, it can effectively prevent the cabinet door 2 of the switch cabinet from being accidentally opened, and avoid the operator from touching the live parts without knowing it, thereby reducing the probability of electric shock accidents. A roller 14 is installed in the mounting slot 8 on the left side of the cabinet 1. The roller sleeve 13 is mounted on the outside of the roller 14, and the cabinet door 2 is mounted on the outside of the roller sleeve 13. A mounting groove 12 is provided on the surface of the cabinet door 2, and a handle groove 4 is provided below the mounting groove 12. The snap plate 3 is magnetically connected to the left side of the cabinet door 2 through a magnetic block installed on the back. When the cabinet door 2 needs to be opened or closed, the rotation of the roller 14 makes the movement of the cabinet door 2 easier and more comfortable, overcoming the problems of jamming and heaviness that may exist in the traditional switch cabinet door 2, and greatly improving the flexibility of operation. When the cabinet door 2 is closed, the snap plate 3 can be firmly adsorbed on the cabinet door 2 to prevent the cabinet door 2 from opening accidentally.

[0026] See also Figure 4-Figure 5In this embodiment, a locking rod corresponding to the hole on the surface of the screw 6 is provided inside the rotating handle 5, a trapezoidal connecting piece 15 is installed behind the rotating handle 5, and a cross bar 16 is installed behind the trapezoidal connecting piece 15. The four corners of the cross bar 16 are arc-shaped chamfered structures, and a No. 1 circular groove 18 is provided on the upper end surface of the cross bar 16. Movable iron buckles 17 are installed at both ends of the cross bar 16, and an oblique groove 19 is provided at the arc-shaped chamfered structure above the movable iron buckle 17. A circular hole is provided between the trapezoidal connecting piece 15 and the cross bar 16, and the movement of the screw 6 can be accurately controlled by rotating the handle 5. When fine adjustment is required, the locking rod can cooperate with the hole of the screw 6 to achieve precise positioning and locking, thereby improving the stability of the screw 6. High operation precision and controllability. When the screw 6 moves to a specific position, the movable iron buckle 17 can interact with other components inside the cross bar 16 to achieve the function of locking or unlocking. L-shaped connecting plates 23 are installed on both sides of the loading plate 21. Two circular holes are opened on the upper surface of the L-shaped connecting plate 23. A limit guide plate 24 is installed on the right side of the L-shaped connecting plate 23. Rollers 25 are installed at the front and rear ends of the L-shaped connecting plate 23. A switch closing plate 26 is installed in front of the rear roller 25. A circular hole and a square groove are opened on the front surface of the loading plate 21. The roller 25 makes the movement of the loading plate 21 and the components thereon smoother in the switch cabinet, and the operator can more effectively perform the closing operation. Accurately find the operating position, which can provide additional support and protection for the loading plate 21 and enhance the overall structural stability of the switch cabinet. The screw 6 is installed inside the circular hole on the front end surface of the loading plate 21, and a second circular groove 20 is opened on the front end surface of the screw 6. A limit nut 29 is installed inside the front end of the loading plate 21, and a clamping plate 30 is set at the tail end of the screw 6. A round rod 32 is installed at the rear of the loading plate 21. The front and rear positions of the loading plate 21 can be fine-tuned by rotating the screw 6, so as to better adapt to different installation requirements and operating environments, ensure the stability of the screw 6 during the adjustment process, provide additional support and fixation for the loading plate 21, and the square surface of the front end surface of the loading plate 21 An observation ruler 22 is installed inside the slot, a locking rod is installed at the front end of the observation ruler 22, and the locking rod is inserted into the No. 1 circular slot 18. A ruler rail 31 is installed at the position of the observation ruler 22 inside the loading plate 21, and a circular table 27 is installed around the loading plate 21. A controller 28 is installed on the right side of the loading plate 21, and a switch assistant 33 is installed in front of the controller 28, so that the position and movement of the loading plate 21 can be intuitively understood. The locking rod is inserted into the No. 1 circular slot 18 to fix the observation ruler 22 in a specific position to prevent it from accidentally moving during operation. Through the controller 28, the operator can remotely control the switch operation of the switch cabinet, adjust electrical parameters, etc., reducing the risks brought by direct contact with the switch cabinet.

[0027] During operation, the operator places the electrical appliance on the round table 27 on the loading plate 21, and then pushes the cabinet door 2, driving the roller sleeve 13 installed on the outer surface of the roller 14 on the left side of the cabinet body 1 to close the cabinet door 2. The operator then inserts the rotary handle 5 into the handle groove 4 at the bottom of the cabinet door 2, and clamps it in the No. 1 circular groove 18 opened on the front end surface of the screw rod 6. The rotary handle 5 is rotated to make the screw rod 6 extend and retract under the fixation of the nut. The loading plate 21 is driven by the round rod 32 and the rollers 25 on both sides rotate to move the loading plate 21, driving the electrical appliance to move to the specified position. The operator can observe the operation of the screw rod 6 through the observation ruler 22. Observe the progress of movement. When the screw 6 moves to the position of the switch assistor 33, the switch assistor 33 controls the controller 28 to switch on and off, and turns on the controller 28. The wireless control module inside the controller 28 controls the motor installed at the tail of the telescopic link 10 to extend it, so that the latch 11 is aligned with the hole in the snap plate 3. Then, the latch 11 is retracted and extended through the sensing device inside the latch 11 and the snap plate, so that the latch 11 is extended and inserted into the hole in the snap plate 3 for fixation. At the same time, the screw 6 rotates to the specified position so that the movable iron buckle 17 can interact with other components inside the cross bar 16 to achieve the locking or unlocking function.

[0028] Through the above steps, by adding the snap plate 3, the rotary handle 5 and the screw 6, the position or spacing of the components inside the switch cabinet can be adjusted so that the latch 11 is aligned with the hole in the snap plate 3, and then the latch 11 is retracted and extended by the latch 11 and the sensing device inside the bayonet plate, so that the latch 11 is extended and inserted into the hole in the snap plate 3 to fix it, and the cabinet door 2 is locked, thereby improving the safety and adaptability of the switch cabinet, effectively avoiding electrical accidents caused by misoperation, ensuring the life safety of the operator and the normal operation of the equipment, and solving the problems of traditional switch cabinets being inflexible and prone to misoperation.

[0029] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present invention.

Claims

1. A mechanical interlock for a switch cabinet, comprising a cabinet body (1) and a cabinet door (2); characterized in that: The cabinet door (2) is mounted on the left side thereof to separate the space inside and outside the cabinet. Two clamping plates (3) for locking the cabinet door (2) are mounted on the left side of the front end of the cabinet door (2). A handle groove (4) is provided in the middle of the bottom of the cabinet door (2). A rotatable rotary handle (5) is provided at the bottom of the cabinet body (1). A screw (6) that can be extended and retracted by rotating the rotary handle (5) is mounted behind the rotary handle (5).

2. The mechanical interlock for a switch cabinet according to claim 1, characterized in that: A heat dissipation slot is provided at the bottom right side of the cabinet (1), a mounting slot (8) is provided at the front left side of the cabinet (1), a partition (7) is installed inside the cabinet (1), a rod cover (9) is installed inside the right side of the cabinet (1) at the bottom of the partition (7), a telescopic connecting rod (10) is installed inside the rod cover (9), and a latch (11) is installed at the output end of the telescopic connecting rod (10).

3. The mechanical interlock for a switch cabinet according to claim 2, characterized in that: A roller (14) is installed in the installation groove (8) on the left side of the cabinet body (1), a roller sleeve (13) is installed outside the roller (14), and a cabinet door (2) is installed outside the roller sleeve (13). A mounting groove (12) is provided on the surface of the cabinet door (2), and a handle groove (4) is provided below the mounting groove (12). The snap plate (3) is magnetically connected to the left side of the cabinet door (2) through a magnetic block installed on the back.

4. The mechanical interlock for a switch cabinet according to claim 3, characterized in that: A locking rod corresponding to the surface hole of the screw rod (6) is provided inside the rotating handle (5), a trapezoidal connector (15) is installed behind the rotating handle (5), a cross bar (16) is installed behind the trapezoidal connector (15), the four corners of the cross bar (16) are arc-shaped chamfered structures, a No. 1 circular groove (18) is opened on the upper surface of the cross bar (16), movable iron buckles (17) are installed at both ends of the cross bar (16), an oblique groove (19) is opened at the arc-shaped chamfered structure above the movable iron buckle (17), and a circular hole is opened through the middle of the trapezoidal connector (15) and the cross bar (16).

5. The mechanical interlock for a switch cabinet according to claim 4, characterized in that: L-shaped connecting plates (23) are installed on both sides of the loading plate (21), two circular holes are opened on the upper surface of the L-shaped connecting plate (23), a limiting guide plate (24) is installed on the right side of the L-shaped connecting plate (23), rollers (25) are installed at the front and rear ends of the L-shaped connecting plate (23), a switch closing plate (26) is installed in front of the rear roller (25), and a circular hole and a square groove are opened on the front surface of the loading plate (21).

6. The mechanical interlock for a switch cabinet according to claim 5, characterized in that: The screw rod (6) is installed inside the circular hole on the front end surface of the loading plate (21), the front end surface of the screw rod (6) is provided with a second circular groove (20), the front end of the loading plate (21) is internally installed with a limit nut (29), the rear end of the screw rod (6) is provided with a card plate (30), and the rear end of the loading plate (21) is internally installed with a round rod (32).

7. The mechanical interlock for a switch cabinet according to claim 6, characterized in that: The front end surface of the loading plate (21) is provided with an observation ruler (22) installed inside the square groove, the front end of the observation ruler (22) is provided with a lock rod, the lock rod is inserted into the first circular groove (18), the loading plate (21) is provided with a ruler rail (31) at the position of the observation ruler (22), the loading plate (21) is provided with a round table (27) around it, the loading plate (21) is provided with a controller (28) on the right side, and a switch assist device (33) is provided in front of the controller (28).

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