Grounding switch operating mechanism

Abstract

The utility model relates to a grounding switch operating mechanism. The technical problem to be solved by the utility model is to provide a grounding switch operating mechanism. According to the technical scheme, the interlocking device comprises a main base plate, a grounding switch operating shaft, a gear transmission device, an output rod, an interlocking limiting sleeve, a cabinet door driving rod, a linkage plate, an interlocking rod, a main locking spring and an auxiliary interlocking device. The main seat plate comprises a main seat plate main body, the side part of the main seat plate main body is vertically bent to form a main seat plate side plate and a driving rod limiting plate respectively, and the lower end of the main seat plate main body is bent to form a driving rod guide plate and a linkage plate mounting plate respectively. The utility model has the advantages that the auxiliary interlocking device is additionally arranged, so that the stress of the cabinet door driving rod and the interlocking rod becomes more uniform, and the stability and the reliability of the whole operation are improved; and through the cooperation of the main locking spring and the auxiliary locking spring, the locking force of the system is obviously enhanced, and the safety of the equipment is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinets, and particularly relates to a grounding switch operating mechanism. Background Art

[0002] A grounding switch operating mechanism is a mechanical device used to control the opening and closing of the grounding switch of electrical equipment. The grounding switch is used to connect the electrical equipment to the ground in the electrical system to ensure that the equipment is not energized during maintenance and repair, protecting the safety of personnel and equipment. The grounding switch operating mechanism is usually applied to occasions such as high-voltage switch cabinets and substations for mechanical operation and status display of the grounding switch. Generally, the grounding switch operating mechanism includes a manual operating mechanism, a gear transmission device, a cabinet door grounding interlock device, etc. The existing cabinet door grounding interlock includes a cabinet door driving rod, a linkage plate, and an interlock rod. The manual operating mechanism includes an operating shaft, and an interlock limit sleeve is arranged on the operating shaft. When the cabinet door is closed, the cabinet door driving rod acts to drive the linkage plate to swing, so that the interlock rod at the other end acts to move out of the interlock limit sleeve to achieve unlocking. When the cabinet door is opened, the cabinet door driving rod drives the linkage plate to swing under the action of the spring force, so that the interlock rod at the other end acts to insert into the interlock limit sleeve to achieve locking. In actual use, since the spring is only arranged at one end of the cabinet door driving rod, the forces on the cabinet door driving rod and the interlock rod are unbalanced, resulting in unstable operation during operation and jamming of the swing of the linkage plate, affecting the smoothness of the operation of the interlock system; since the entire locking force depends on one spring, the spring is extremely vulnerable to damage after frequent operations, and the spring force is insufficient, affecting the locking force and posing a risk of accidental unlocking. Therefore, improvements and optimizations are made. Summary of the Utility Model

[0003] To solve the above problems, the technical problem to be solved by the utility model is to provide a grounding switch operating mechanism.

[0004] The technical solution adopted by the grounding switch operating mechanism of the utility model is characterized in that it includes a main seat plate, a grounding switch operating shaft penetrating through the main seat plate, a gear transmission device, an output rod, an interlock limit sleeve sleeved on the grounding switch operating shaft, a cabinet door driving rod, a linkage plate swingably arranged on the main seat plate, an interlock rod cooperating with the interlock limit sleeve, a main locking spring sleeved on the cabinet door driving rod, and an auxiliary interlock device. The upper end of the linkage plate is connected to the horizontally arranged interlock rod, and the lower end of the linkage plate is connected to the horizontally arranged cabinet door driving rod;

[0005] The main seat plate comprises a main seat plate body, the side portion of the main seat plate body is vertically bent to form a main seat plate side plate and a driving rod limit plate respectively, the lower end of the main seat plate body is bent to form a driving rod guide plate and a linkage plate mounting plate which are arranged parallel to the main seat plate body respectively, the inside of the main seat plate body is vertically bent in sequence to form an auxiliary docking plate, an auxiliary transition plate and an auxiliary guide plate, the side plate of the main seat plate is provided with an operating shaft through hole for the earthing switch operating shaft to pass through and an interlocking rod through hole for the interlocking rod to pass through, and the auxiliary docking plate is provided with a docking plate through hole which is connected to the interlocking rod through hole and has the same inner diameter as the through hole of the interlocking rod;

[0006] The auxiliary interlocking device includes an auxiliary reinforcement column, an auxiliary locking spring and a reinforcement column limiting screw. A reinforcement column limiting groove is provided at one end of the auxiliary reinforcement column. The auxiliary locking spring is sleeved on the reinforcement column limiting groove, one end of which is against the auxiliary reinforcement column and the other end of which is against the auxiliary guide plate. The reinforcement column limiting screw passes through the auxiliary guide plate and is connected to the auxiliary reinforcement column. The other end of the auxiliary reinforcement column is penetrated through the through hole of the docking plate and contacts the end of the interlocking rod.

[0007] The upper and lower ends of the linkage plate are respectively provided with waist-shaped holes for limiting the position when connected to the interlocking rod and the cabinet door driving rod; the middle part of the linkage plate is provided with a linkage plate fixing hole connected to the linkage plate mounting plate; the back of the linkage plate is provided with a linkage plate limiting column; the linkage plate mounting plate is provided with a limiting waist-shaped hole for limiting the position when the linkage plate limiting column swings.

[0008] The main seat plate body is provided with a main seat plate yielding opening near the main seat plate side plate, the left end of the main seat plate yielding opening is vertically bent to form the auxiliary docking plate, the lower end of the auxiliary docking plate is vertically bent outward to form the auxiliary transition plate, and the auxiliary transition plate is vertically bent inward to form the auxiliary guide plate.

[0009] The auxiliary guide plate is provided with an auxiliary guide plate reinforcement protrusion, and the main seat plate body is provided with a main seat plate limiting opening corresponding to the auxiliary guide plate reinforcement protrusion.

[0010] The cabinet door driving rod includes a driving rod guide portion inserted through the driving rod limit plate, a driving rod driving portion arranged parallel to the driving rod guide portion and connected to the switch cabinet door, and a longitudinally arranged pin limit hole is provided on the driving rod guide portion. The main locking spring is sleeved on the driving rod guide portion, one end of which abuts against the driving rod limit plate and the other end of which abuts against the pin inserted through the pin limit hole.

[0011] The driving rod guide plate is provided with a guide plate guide opening for guiding the action of the driving part of the driving rod.

[0012] The advantages of the earthing switch operating mechanism of the present utility model are as follows: By adding an auxiliary interlocking device, the forces on the cabinet door driving rod and the interlocking rod become more uniform, effectively avoiding the shaking caused by unbalanced forces, and improving the overall operation stability and reliability; Through the cooperation of the main locking spring and the auxiliary locking spring, the locking force of the system is significantly enhanced, reducing the possibility of accidental unlocking of the equipment under external impact or vibration conditions, further improving the safety of the equipment, and the service life of the spring is higher; The linkage mechanism operates more smoothly and reliably, reducing jamming phenomena and reducing the maintenance frequency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0014] Figure 1 is a schematic structural diagram of the earthing switch operating mechanism of the present utility model;

[0015] Figure 2 is a schematic structural diagram of the main seat plate of the present utility model;

[0016] Figure 3 is Figure 2 an enlarged view of

[0017] Figure 4 is a schematic structural diagram of the auxiliary interlocking device of the present utility model;

[0018] Figure 5 is a schematic structural diagram of the linkage plate of the present utility model;

[0019] Figure 6 is a schematic structural diagram of the cabinet door driving rod of the present utility model. SPECIFIC EMBODIMENTS

[0020] As Figures 1-6 shown, the earthing switch operating mechanism related to the present utility model includes a main seat plate 1, an earthing switch operating shaft 2 penetrating through the main seat plate 1, a gear transmission device 3, an output rod 4, an interlocking limit sleeve 7 sleeved on the earthing switch operating shaft 2, a cabinet door driving rod 8, a linkage plate 9 swingably arranged on the main seat plate 1, an interlocking rod 10, a main locking spring 11 sleeved on the cabinet door driving rod 8, and an auxiliary interlocking device 12. The upper end of the linkage plate 9 is connected to the horizontally arranged interlocking rod 10, the lower end of the linkage plate 9 is connected to the horizontally arranged cabinet door driving rod 8, the input end of the gear transmission device 3 is butted against the earthing switch operating shaft 2, the output end of the gear transmission device 3 is butted against the output rod 4, an output crank 5 connected to the earthing switch is arranged on the output rod 4, an interlocking limit opening is arranged on the interlocking limit sleeve 7, and the interlocking rod 10 cooperates with the interlocking limit opening.

[0021] The main seat plate 1 includes a main seat plate body 15. On the side of the main seat plate body 15, vertical bends are respectively formed to form a main seat plate side plate 16 and a driving rod limiting plate 17. At the lower end of the main seat plate body 15, bends are respectively formed to form a driving rod guiding plate 18 and a linkage plate mounting plate 19 that are arranged parallel to the main seat plate body 15. Inside the main seat plate body 15, vertical bends are successively formed to form an auxiliary docking plate 20, an auxiliary transition plate 21, and an auxiliary guiding plate 22. An operating shaft through hole 25 for the grounding switch operating shaft 2 to pass through and an interlocking rod through hole 24 for the interlocking rod 10 to pass through are provided on the main seat plate side plate 16. A docking plate through hole 35 that communicates with the interlocking rod through hole 24 and has the same inner diameter is provided on the auxiliary docking plate 20. The auxiliary interlocking device 12 includes an auxiliary reinforcing column 26, an auxiliary locking spring 27, and a reinforcing column limiting screw 28. A reinforcing column limiting groove 29 is provided at one end of the auxiliary reinforcing column 26. The auxiliary locking spring 27 is sleeved on the reinforcing column limiting groove 29, with one end abutted against the auxiliary reinforcing column 26 and the other end abutted against the auxiliary guiding plate 22. The reinforcing column limiting screw 28 passes through the auxiliary guiding plate 22 and is connected to the auxiliary reinforcing column 26. The other end of the auxiliary reinforcing column 26 passes through the docking plate through hole 35 and is in contact with the end of the interlocking rod 10. By adding the auxiliary interlocking device 12, the forces on the cabinet door driving rod 8 and the interlocking rod 10 become more uniform, effectively avoiding shaking caused by unbalanced forces, and improving the stability and reliability of the overall operation. Through the cooperation of the main locking spring 11 and the auxiliary locking spring 27, the locking force of the system is significantly enhanced, reducing the possibility of accidental unlocking of the equipment under external impact or vibration conditions, further improving the safety of the equipment, and having a higher service life of the spring. The linkage mechanism operates more smoothly and reliably, reducing jamming phenomena and reducing the maintenance frequency.

[0022] The upper and lower ends of the linkage plate 9 are respectively provided with kidney-shaped holes 31 for limiting when connected to the interlocking rod 10 and for limiting when connected to the cabinet door driving rod 8. A linkage plate fixing hole 32 for connecting to the linkage plate mounting plate 19 is provided in the middle of the linkage plate 9. A linkage plate limiting column 33 is provided on the back of the linkage plate 9. A limiting kidney-shaped hole 34 for limiting the swing of the linkage plate limiting column 33 is provided on the linkage plate mounting plate 19.

[0023] A main seat plate relief opening 36 is provided on the main seat plate body 15 near the main seat plate side plate 16. The left end of the main seat plate relief opening 36 is vertically bent to form the auxiliary docking plate 20. The lower end of the auxiliary docking plate 20 is vertically bent outwards to form the auxiliary transition plate 21. The auxiliary transition plate 21 is vertically bent inwards to form the auxiliary guiding plate 22, which does not affect the installation and disassembly of the auxiliary interlocking device 12, is convenient for installation, and effectively improves the efficiency.

[0024] The auxiliary guide plate 22 is provided with an auxiliary guide plate reinforcement protrusion 37, and the main seat plate body 15 is provided with a main seat plate limit opening 38 that is docked with the auxiliary guide plate reinforcement protrusion 37, strengthening the impact resistance of the entire main seat plate 1, making the auxiliary guide plate 22 more firm and not prone to position deviation, and making the movement of the auxiliary reinforcement column 26 more stable and reliable.

[0025] The cabinet door driving rod 8 includes a driving rod guiding portion 40 inserted through the driving rod limiting plate 17, and a driving rod driving portion 41 that is arranged parallel to the driving rod guiding portion 40 and is docked with the switch cabinet door. The driving rod guiding portion 40 is provided with a longitudinally arranged pin limiting hole 42. The main locking spring 11 is sleeved on the driving rod guiding portion 40, with one end abutted against the driving rod limiting plate 17 and the other end abutted against a pin inserted into the pin limiting hole 42. The driving rod driving portion 41 is in contact with the rear cabinet door of the switch cabinet, and the action consistency is high.

[0026] The driving rod guiding plate 18 is provided with a guiding plate guiding opening 44 for guiding the movement of the driving rod driving portion 41, making the movement more reliable and stable.

[0027] It further includes a micro switch 13 docked with the end of the interlocking rod 10. The micro switch 13 is installed at the extended end of the main seat plate side plate 16. When the switch cabinet door is opened, the interlocking rod 10 is inserted into the interlocking limit opening of the interlocking limit sleeve 7 and the end of the interlocking rod 10 touches the micro switch 13 at the same time, so that the micro switch obtains a locking signal. When the cabinet door is closed, the end of the interlocking rod 10 is disconnected from the micro switch 13 and is in an unlocked state, and the micro switch has no signal, which can further improve the safety of the interlock.

[0028] When the rear cabinet door of the switch cabinet is closed, the cabinet door driving rod 8 is driven to move horizontally to the right, and the main locking spring 11 is in a compressed state, causing the linkage plate 9 to swing, thereby causing the interlocking rod 10 to move to the left. The interlocking rod 10 moves out of the interlocking limit opening in the interlocking limit sleeve 7 to achieve unlocking. At the same time, the left end of the interlocking rod 10 presses the auxiliary reinforcement column 26, causing the auxiliary locking spring 27 to be in a compressed state. When the rear cabinet door of the switch cabinet is opened, under the release of the double spring forces of the main locking spring 11 and the auxiliary locking spring 27, the interlocking rod 10 moves to the right, and the cabinet door driving rod 8 moves to the left, causing the interlocking rod 10 to quickly insert into the interlocking limit opening in the interlocking limit sleeve 7 to achieve locking.

[0029] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention are all included in the protection scope of the present invention.

Claims

1. An earthing switch operating mechanism, characterized in that: It includes a main seat plate (1), a grounding switch operating shaft (2) inserted through the main seat plate (1), a gear transmission device (3), an output rod (4), an interlock limit sleeve (7) sleeved on the grounding switch operating shaft (2), a cabinet door driving rod (8), a linkage plate (9) swingably arranged on the main seat plate (1), an interlock rod (10) cooperating with the interlock limit sleeve (7), a main locking spring (11) sleeved on the cabinet door driving rod (8), and an auxiliary interlock device (12). The upper end of the linkage plate (9) is connected to the horizontally arranged interlock rod (10), and the lower end of the linkage plate (9) is connected to the horizontally arranged cabinet door driving rod (8). The main seat plate (1) includes a main seat plate body (15). The side part of the main seat plate body (15) is vertically bent to respectively form a main seat plate side plate (16) and a driving rod limit plate (17). The lower end of the main seat plate body (15) is bent to respectively form a driving rod guiding plate (18) and a linkage plate mounting plate (19) arranged parallel to the main seat plate body (15). Inside the main seat plate body (15), it is vertically bent in sequence to form an auxiliary docking plate (20), an auxiliary transition plate (21), and an auxiliary guiding plate (22). An operating shaft through hole (25) for the grounding switch operating shaft (2) to pass through and an interlock rod through hole (24) for the interlock rod (10) to pass through are provided on the main seat plate side plate (16). A docking plate through hole (35) that communicates with the interlock rod through hole (24) and has the same inner diameter is provided on the auxiliary docking plate (20). The auxiliary interlock device (12) includes an auxiliary reinforcing column (26), an auxiliary locking spring (27), and a reinforcing column limit screw (28). A reinforcing column limit groove (29) is provided at one end of the auxiliary reinforcing column (26). The auxiliary locking spring (27) is sleeved on the reinforcing column limit groove (29), with one end abutted against the auxiliary reinforcing column (26) and the other end abutted against the auxiliary guiding plate (22). The reinforcing column limit screw (28) passes through the auxiliary guiding plate (22) and is connected to the auxiliary reinforcing column (26). The other end of the auxiliary reinforcing column (26) is inserted through the docking plate through hole (35) and is in contact with the end of the interlock rod (10).

2. The earthing switch operating mechanism according to claim 1, wherein: Linkage plate waist-shaped holes (31) for limiting when connected to the interlock rod (10) and when connected to the cabinet door driving rod (8) are respectively provided at the upper and lower ends of the linkage plate (9). A linkage plate fixing hole (32) for connecting to the linkage plate mounting plate (19) is provided in the middle of the linkage plate (9). A linkage plate limit post (33) is provided on the back of the linkage plate (9). A limit waist-shaped hole (34) for limiting the swing of the linkage plate limit post (33) is provided on the linkage plate mounting plate (19).

3. The earthing switch operating mechanism according to claim 1, characterized in that: A main seat plate relief opening (36) is provided at the main seat plate body (15) near the main seat plate side plate (16). The left end of the main seat plate relief opening (36) is vertically bent to form the auxiliary docking plate (20). The lower end of the auxiliary docking plate (20) is vertically bent outward to form the auxiliary transition plate (21). The auxiliary transition plate (21) is vertically bent inward to form the auxiliary guide plate (22).

4. The earthing switch operating mechanism according to claim 1, wherein: The auxiliary guide plate (22) is provided with an auxiliary guide plate reinforcement protrusion (37). A main seat plate limit opening (38) for docking with the auxiliary guide plate reinforcement protrusion (37) is provided on the main seat plate body (15).

5. The earthing switch operating mechanism according to claim 1, characterized in that: The cabinet door driving rod (8) includes a driving rod guiding portion (40) passing through the driving rod limiting plate (17), and a driving rod driving portion (41) arranged in parallel with the driving rod guiding portion (40) and docking with the switch cabinet door. A longitudinally arranged pin limiting hole (42) is provided on the driving rod guiding portion (40). The main locking spring (11) is sleeved on the driving rod guiding portion (40), one end of which abuts against the driving rod limiting plate (17) and the other end abuts against a pin passing through the pin limiting hole (42).

6. The earthing switch operating mechanism according to claim 5, characterized in that: A guide plate guiding opening (44) for guiding the movement of the driving rod driving portion (41) is provided on the driving rod guide plate (18).

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