Emergency opening mechanism for cabinet body

Abstract

The utility model discloses an emergency opening mechanism for a cabinet body, comprising a cabinet body, an opening rod, a crank, an interlocking mechanism and an anti-rotation assembly, the opening rod and the cabinet body are rotatably arranged, one side of the cabinet body is provided with a mounting plate, the interlocking mechanism and the anti-rotation assembly are arranged on the mounting plate, and the interlocking mechanism comprises a left interlocking member, a right interlocking member, a pressing member and a limiting member. According to the utility model, through the arrangement of the interlocking mechanism and the anti-rotation assembly, when the opening rod needs to be operated by the crank, the movable frame is pressed, so that the left interlocking member and the right interlocking member are far away from each other, and the distance between the left interlocking member and the right interlocking member is increased; when the switch is switched on, the crank is matched with the positioning part, the movable sleeve is continuously pressed, and the anti-rotation groove is separated from the limiting sleeve after the movable sleeve moves, so that the crank can be rotated, the switch-off rod rotates synchronously, and the switch-off effect is achieved.

Description

Technical Field

[0001] This utility model discloses an emergency tripping mechanism for a cabinet, belonging to the field of power distribution cabinet technology. Background Technology

[0002] With advancements in power equipment manufacturing processes, the power supply quality has become increasingly stable. To further improve the automation level of power systems, various units in the power supply industry have comprehensively launched intelligent upgrades and renovations of substations. To enable the centrally mounted vacuum circuit breaker to easily perform push-in (pushing from the test position to the working position and locking) and pull-out (moving from the working position to the test position and locking), a chassis vehicle is generally used to carry the vacuum circuit breaker and facilitate its push-in and pull-out. The emergency tripping mechanism is the most important safety component of the chassis vehicle, used to operate the circuit breaker's tripping lever to achieve the purpose of tripping. Most existing emergency tripping mechanisms use a crank handle for direct knob operation. Even with the addition of interlocking doors providing some protection, since the circuit breaker's tripping is a crucial link in ensuring the operation of the electrical cabinet, misoperation can lead to serious consequences. Therefore, an additional safety measure is needed when operating the crank handle. Utility Model Content

[0003] The purpose of this utility model is to solve the problems in the prior art and provide an emergency tripping mechanism for cabinets.

[0004] This utility model achieves the above-mentioned objective through the following technical solution: an emergency tripping mechanism for a cabinet, comprising a cabinet, a tripping lever, a crank, an interlocking mechanism, and an anti-rotation component, characterized in that the tripping lever is rotatably disposed with the cabinet, a mounting plate is provided on one side of the cabinet, the interlocking mechanism and the anti-rotation component are disposed on the mounting plate, the interlocking mechanism includes a left interlocking component, a right interlocking component, a pressing component, and a limiting component, the left interlocking component and the right interlocking component have the same structure, and the left interlocking component includes a fixed base, a sliding base, and a first spring, the fixed base is fixed on the mounting plate, and a swing rod and a semi-circular protrusion are rotatably disposed on the fixed base, the sliding base is slidably disposed on the mounting plate, and a pressing groove is provided on the sliding base, the lower end of the semi-circular protrusion... Located within the pressure groove, the two ends of the first spring abut against the sliding seat and the fixed seat respectively. The sliding seats in the left and right interlocking components are located on both sides of the anti-rotation assembly. The sliding seat has an opening groove on the side away from the fixed seat. The limiting member is mounted on the mounting plate and is used to control the sliding distance of the sliding seat. The pressing member is mounted on the mounting plate. The middle part of the swing rod abuts against the semi-circular protrusion, and the end away from the fixed seat abuts against the pressing member. A limiting sleeve is fixedly mounted on the opening rod, and the opening rod has a positioning part. One end of the crank handle has a positioning groove that cooperates with the positioning part. The outer side of the limiting sleeve has a flower-shaped structure or a polygonal structure. The anti-rotation assembly has an anti-rotation groove that slides with the limiting sleeve.

[0005] Preferably, the anti-rotation component includes a first limiting bolt, a movable sleeve, and a second spring. Two of each of the first limiting bolt and the second spring are provided. One end of the first limiting bolt passes through the movable sleeve and is fixedly connected to the mounting plate. The anti-rotation groove is provided on the movable sleeve. The second spring is sleeved on the outside of the first limiting bolt and applies a force away from the mounting plate to the movable sleeve.

[0006] Preferably, the positioning part is provided with a damping element, which includes a positioning glass bead and a third spring. Two positioning glass beads are provided and slidably disposed in the positioning part. The two ends of the third spring respectively abut against the positioning glass beads.

[0007] Preferably, the pressing component includes a movable frame, a second limiting bolt, and a fourth spring. Two second limiting bolts and two fourth springs are provided. One end of the second limiting bolt passes through the movable frame and is fixedly connected to the mounting plate. The fourth spring is sleeved on the movable frame and applies a force to the movable frame away from the mounting plate.

[0008] Preferably, a roller is rotatably mounted on the swing arm, and the roller abuts against the movable frame.

[0009] Preferably, the limiting component includes a movable column and a fifth spring, the sliding seat is provided with a limiting groove, the movable column is slidably mounted on the mounting plate, and the fifth spring is sleeved on the movable column, with one end of the movable column abutting against the limiting groove.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] By setting up an interlocking mechanism and an anti-rotation component, when the opening lever needs to be operated by the crank, pressing the movable frame causes the left and right interlocking parts to move away from each other, increasing the distance between them. This facilitates the crank and the positioning part to cooperate, and continues to press the movable sleeve, causing it to move and separate the anti-rotation groove from the limit sleeve. In this way, the crank can be turned, causing the opening lever to rotate synchronously, thereby achieving the effect of opening the circuit breaker. The interlocking mechanism and the anti-rotation mechanism can provide dual protection for the operation of the opening lever. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of an emergency tripping mechanism for a cabinet according to the present invention;

[0013] Figure 2 This is a partial structural schematic diagram of an emergency tripping mechanism for a cabinet according to the present invention;

[0014] Figure 3 This is a schematic diagram of the installation structure of the interlocking mechanism and the cabinet in this utility model;

[0015] Figure 4 This is a schematic diagram of the anti-rotation component and the trip lever in this utility model;

[0016] Figure 5 This is a schematic diagram of the structure of the movable sleeve and the limiting sleeve in this utility model;

[0017] Figure 6 This is a schematic diagram of the structure of the fixed seat and the sliding seat in this utility model;

[0018] Figure 7 This is a schematic diagram of the crank handle in this utility model;

[0019] Reference numerals in the attached diagram: 1. Opening lever; 2. Cabinet; 3. Mounting plate; 4. Crank handle; 5. Interlocking mechanism; 6. Fourth spring; 7. Second limit bolt; 8. Movable frame; 9. Roller; 10. Swing rod; 11. Fixed seat; 12. First spring; 13. Sliding seat; 14. Limiting component; 15. Right interlocking component; 16. Anti-rotation component; 17. Left interlocking component; 18. Movable sleeve; 19. Second spring; 20. First limit bolt; 21. Positioning bead; 22. Positioning part; 23. Anti-rotation groove; 24. Opening groove; 25. Pressing groove; 26. Semi-circular protrusion; 27. Positioning groove; 28. Limiting groove; 29. ​​Limiting sleeve. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1-7As shown, an emergency tripping mechanism for a cabinet includes a cabinet 2, a tripping lever 1, a crank 4, an interlocking mechanism 5, and an anti-rotation component 16. The tripping lever 1 is rotatably mounted to the cabinet 2. A mounting plate 3 is provided on one side of the cabinet 2. The interlocking mechanism 5 and the anti-rotation component 16 are mounted on the mounting plate 3. The interlocking mechanism 5 includes a left interlocking member 17, a right interlocking member 15, a pressing member, and a limiting member 14. The left interlocking member 17 and the right interlocking member 15 have the same structure. The left interlocking member 17 includes a fixed base 11, a sliding base 13, and a first spring 12. The fixed base 11 is fixed to the mounting plate 3, and a swing rod 10 and a semi-circular protrusion 26 are rotatably mounted on the fixed base 11. The sliding base 13 is slidably mounted on the mounting plate 3, and a pressing groove 25 is provided on the sliding base 13. The lower end of the semi-circular protrusion 26 is located in the pressing groove 25. Inside, the two ends of the first spring 12 abut against the sliding seat 13 and the fixed seat 11 respectively. The sliding seat 13 in the left interlocking member 17 and the right interlocking member 15 is located on both sides of the anti-rotation component 16, and the side of the sliding seat 13 away from the fixed seat 11 is provided with an opening slot 24. The limiting member 14 is installed on the mounting plate 3 and is used to control the sliding distance of the sliding seat 13. The pressing member is set on the mounting plate 3. The middle part of the swing rod 10 abuts against the semi-circular protrusion 26, and the end away from the fixed seat 11 abuts against the pressing member. The opening rod 1 is fixedly installed with a limiting sleeve 29, and the opening rod 1 has a positioning part 22. One end of the crank 4 has a positioning groove 27 that cooperates with the positioning part 22. The outer side of the limiting sleeve 29 is a flower-shaped structure or a polygonal structure. The anti-rotation component 16 has an anti-rotation groove 23 that slides with the limiting sleeve 29.

[0022] The anti-rotation assembly 16 includes a first limiting bolt 20, a movable sleeve 18, and a second spring 19. There are two of each of the first limiting bolt 20 and the second spring 19. One end of the first limiting bolt 20 passes through the movable sleeve 18 and is fixedly connected to the mounting plate 3. The anti-rotation groove 23 is provided on the movable sleeve 18. The second spring 19 is sleeved on the outside of the first limiting bolt 20 and applies a force to the movable sleeve 18 away from the mounting plate 3. When the movable sleeve 18 is under pressure, it will compress the second spring 19 and slide towards the mounting plate 3, so that the anti-rotation groove 23 disengages from the limiting sleeve 29, thereby preventing the rotation of the scoring gate arm 1 from being restricted.

[0023] The positioning part 22 is provided with a damping element, which includes a positioning glass ball 21 and a third spring. There are two positioning glass balls 21, which are slidably disposed in the positioning part 22. The two ends of the third spring respectively abut against the positioning glass balls 21. When the crank 4 is inserted into the positioning part 22, the positioning groove 27 cooperates with the positioning part 22, and the positioning glass balls 21 are pressed into the positioning part 22. The third spring will generate a reverse force on the positioning glass balls 21, so that the crank 4 has a certain resistance when it is disengaged from the positioning part.

[0024] The pressing component includes a movable frame 8, a second limiting bolt 7, and a fourth spring 6. There are two of each of the second limiting bolt 7 and the fourth spring 6. One end of the second limiting bolt 7 passes through the movable frame 8 and is fixedly connected to the mounting plate 3. The fourth spring 6 is sleeved on the movable frame 8 and applies a force to the movable frame 8 away from the mounting plate 3. When the movable frame 8 is pressed by hand, it can compress the fourth spring 6 and apply pressure to the two swing rods 10, causing them to swing and press the semi-circular protrusion 26 to rotate. The semi-circular protrusion 26 pushes the sliding seat 13 to compress the first spring 12, thereby increasing the distance between the two opening slots 24 so that the rocker arm can be smoothly inserted into the positioning part 22.

[0025] A roller 9 is rotatably mounted on the swing arm 10. The roller 9 abuts against the movable frame 8. When the movable frame 8 applies pressure to the roller 9, it can transmit the force to the swing arm 10, causing the swing arm 10 to swing. The roller 9 can rotate, thereby reducing the wear between it and the movable frame 8.

[0026] The limiting component 14 includes a movable column and a fifth spring. A limiting groove 28 is provided on the sliding seat 13. The movable column is slidably mounted on the mounting plate 3. The fifth spring is sleeved on the movable column, and one end of the movable column abuts against the limiting groove 28. The force applied by the fifth spring to the movable column makes the movable column always abut against the sliding seat 13. When the sliding seat 13 slides, the movable column and the limiting groove 28 can limit the sliding distance of the sliding seat 13, thereby preventing the first spring 12 from being over-compressed and failing.

[0027] Working principle: When the circuit breaker needs to be tripped, one hand presses the movable frame 8, causing the two swing rods 10 to swing and push the two semi-circular protrusions 26 to rotate. This causes the sliding seat 13 to be pushed and compress the first spring 12. At this time, the distance between the opening slots 24 on the two sliding seats 13 increases, allowing the crank handle 4 to be smoothly inserted into the positioning part 22 of the tripping rod 1, and keeping the movable frame 8 in a stable state. The other hand continues to push the crank handle 4, which pushes the movable sleeve 18 to compress the second spring 19, causing the anti-rotation groove 23 on the movable sleeve 18 to disengage from the limit groove 28. At this time, the tripping rod 1 can be rotated synchronously by turning the crank handle 4, thereby achieving the tripping effect.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An emergency tripping mechanism for a cabinet, comprising a cabinet (2), a tripping lever (1), a crank (4), an interlocking mechanism (5), and an anti-rotation component (16), characterized in that, The switch lever (1) is rotatably mounted to the cabinet (2). A mounting plate (3) is provided on one side of the cabinet (2). The interlocking mechanism (5) and the anti-rotation component (16) are mounted on the mounting plate (3). The interlocking mechanism (5) includes a left interlocking component (17), a right interlocking component (15), a pressing component, and a limiting component (14). The left interlocking component (17) and the right interlocking component (15) have the same structure. The left interlocking component (17) includes a fixed base (11) and a sliding base. (13) and the first spring (12), the fixed seat (11) is fixed on the mounting plate (3), and the fixed seat (11) is rotatably provided with a swing rod (10) and a semi-circular protrusion (26), the sliding seat (13) is slidably provided on the mounting plate (3), and the sliding seat (13) is provided with a pressing groove (25), the lower end of the semi-circular protrusion (26) is located in the pressing groove (25), and the two ends of the first spring (12) are respectively connected to the sliding seat (13) and the fixed seat (12). The fixed seat (11) abuts against the sliding seat (13) in the left interlocking member (17) and the right interlocking member (15), which are located on both sides of the anti-rotation component (16). The sliding seat (13) is provided with an opening groove (24) on the side away from the fixed seat (11). The limiting member (14) is installed on the mounting plate (3) and is used to control the sliding distance of the sliding seat (13). The pressing member is provided on the mounting plate (3). The middle part of the swing rod (10) is connected to the semi-circular protrusion. (26) The end of the lever (1) that is in contact with the pressing part and away from the fixed seat (11) is in contact with the pressing part. The lever (1) is fixedly installed with a limiting sleeve (29) and has a positioning part (22). One end of the crank (4) has a positioning groove (27) that cooperates with the positioning part (22). The outer side of the limiting sleeve (29) is a flower-shaped structure or a polygonal structure. The anti-rotation component (16) has an anti-rotation groove (23) that slides with the limiting sleeve (29).

2. The emergency tripping mechanism for a cabinet according to claim 1, characterized in that, The anti-rotation component (16) includes a first limiting bolt (20), a movable sleeve (18), and a second spring (19). There are two of each of the first limiting bolt (20) and the second spring (19). One end of the first limiting bolt (20) passes through the movable sleeve (18) and is fixedly connected to the mounting plate (3). The anti-rotation groove (23) is provided on the movable sleeve (18). The second spring (19) is sleeved on the outside of the first limiting bolt (20) and applies a force away from the mounting plate (3) to the movable sleeve (18).

3. The emergency tripping mechanism for a cabinet according to claim 1, characterized in that, The positioning part (22) is provided with a damping element, which includes a positioning glass bead (21) and a third spring. There are two positioning glass beads (21) and they are slidably disposed in the positioning part (22). The two ends of the third spring respectively abut against the positioning glass beads (21).

4. The emergency tripping mechanism for a cabinet according to claim 1, characterized in that, The pressing component includes a movable frame (8), a second limiting bolt (7), and a fourth spring (6). There are two of each of the second limiting bolt (7) and the fourth spring (6). One end of the second limiting bolt (7) passes through the movable frame (8) and is fixedly connected to the mounting plate (3). The fourth spring (6) is sleeved on the movable frame (8) and applies a force to the movable frame (8) away from the mounting plate (3).

5. The emergency tripping mechanism for a cabinet according to claim 4, characterized in that, A roller (9) is rotatably mounted on the swing arm (10), and the roller (9) abuts against the movable frame (8).

6. The emergency tripping mechanism for a cabinet according to claim 1, characterized in that, The limiting component (14) includes a movable column and a fifth spring. The sliding seat (13) is provided with a limiting groove (28). The movable column is slidably mounted on the mounting plate (3). The fifth spring is sleeved on the movable column, and one end of the movable column abuts against the limiting groove (28).

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