阅读说明：本技术 一种充气柜双操作轴三工位机构及其联锁装置 (Double-operation-shaft three-station mechanism of inflatable cabinet and interlocking device thereof ) 是由 向小青 王超 孙奇 程少勇 于 2020-07-29 设计创作，主要内容包括：本发明公开了一种充气柜双操作轴三工位机构及其联锁装置,其特征在于,包括设于安装板二和安装板三之间的支撑件、导向板、丝杆及限位杆一,丝杠的一端与传动齿轮一的轴心连接,丝杆与滑块相配合；传动齿轮一与传动齿轮二相互啮合,传动齿轮二的轴心与安装板二连接,操作手柄穿过安装板一后与传动齿轮二的轴心连接；安装板一的外侧设有联锁板,联锁板上设有在运动过程中用于拨动左片簧的弯钩及用于拨动右片簧的限位钉,还设有与联锁杆相配合的孔,联锁板的外侧固定有移动手柄轴。与现有技术相比,本发明采用双操作轴操作,联锁、联动、防启效果好,联锁逻辑性强,操动机构的锁定、解锁、转换操作方便、可靠。(The invention discloses a double-operating-shaft three-station mechanism of an inflatable cabinet and an interlocking device thereof, which are characterized by comprising a supporting piece, a guide plate, a screw rod and a limiting rod I, wherein the supporting piece, the guide plate, the screw rod and the limiting rod I are arranged between a mounting plate II and a mounting plate III; the first transmission gear is meshed with the second transmission gear, the axis of the second transmission gear is connected with the second mounting plate, and the operating handle penetrates through the first mounting plate and then is connected with the axis of the second transmission gear; the outer side of the first mounting plate is provided with an interlocking plate, the interlocking plate is provided with a hook used for shifting the left leaf spring and a limit nail used for shifting the right leaf spring in the movement process, the interlocking plate is further provided with a hole matched with an interlocking rod, and a movable handle shaft is fixed on the outer side of the interlocking plate. Compared with the prior art, the invention adopts double-operating-shaft operation, has good interlocking, linkage and anti-starting effects, strong interlocking logic and convenient and reliable locking, unlocking and switching operation of the operating mechanism.)

1. A double-operating-shaft three-station mechanism of an inflatable cabinet and an interlocking device thereof are characterized by comprising a supporting piece (8), a guide plate, a screw rod (11) and a pair of limiting rods (9) which are parallel to each other, wherein the supporting piece (8), the guide plate, the screw rod (11) and the pair of limiting rods (9) are arranged between a mounting plate II (4) and a mounting plate III (5), one end of the screw rod (11) is connected with the axle center of a transmission gear I (6), and the screw rod (11) is matched with a sliding block (12); a guide block (24) is fixed on one side of the sliding block (12), the guide block (24) moves in a pair of mutually parallel limiting rods I (9), and a convex block (121) for limiting a limiting block I (13) is arranged on the sliding block (12); the first transmission gear (6) is meshed with the second transmission gear (7), the axis of the second transmission gear (7) is connected with the second mounting plate (4), and the operating handle (1) penetrates through the first mounting plate (3) and then is connected with the axis of the second transmission gear (7); a first limiting plate (17) and a second limiting plate (18) are respectively arranged on two sides of one end part of a screw rod (11) connected with a first transmission gear (6), the bottoms of the first limiting plate (17) and the second limiting plate (18) are connected with a corresponding first limiting rod (9), a right leaf spring (16) and a left leaf spring (15) are respectively arranged on the first limiting plate (17) and the second limiting plate (18), an interlocking plate (26) is arranged on the outer side of a first mounting plate (3), a hook used for shifting the left leaf spring (15) and a limiting nail (14) used for shifting the right leaf spring (16) in the movement process are arranged on the interlocking plate (26), a hole matched with the interlocking rod (20) is further formed, and a movable handle shaft (2) is fixed on the outer side of the interlocking plate (26; two ends of the screw rod (11) are respectively provided with a first limiting block (13); a reset torsion spring (19) for resetting the second limiting plate (18) and the first limiting plate (17) is arranged between the second limiting plate (18) and the first limiting plate (17); three connecting plates (22) are arranged on the supporting piece (8), a protruding structure is arranged on each connecting plate (22), each connecting plate (22) is connected with an interlocking rod (20), and a reset pressure spring (21) used for resetting each connecting plate (22) is sleeved at one end of each interlocking rod (20); the guide plate is formed by splicing a first plate (28) and a second plate (29), a hexagonal hole is formed in the splicing position of the first plate and the second plate, the hexagonal hole is matched with a hexagonal part at the end part of the guide block (24), when the end part of the guide block (24) is completely matched with the hexagonal hole, the edges of the first plate (28) and the second plate (29) are mutually attached, and when the end part of the guide block (24) is not completely matched with the hexagonal hole, the first plate (28) and the second plate (29) are in a separated state.

2. The double-operating-shaft three-position mechanism and the interlocking device thereof of the inflatable cabinet as claimed in claim 1, wherein a second limiting block (25) is fixed on the first limiting rod (9).

3. The double-operating-shaft three-position mechanism and the interlocking device thereof of the gas-filled cabinet as claimed in claim 1, wherein the screw rod (11) is engaged with the slide block (12) through threads.

4. The double-operating-shaft three-position mechanism and the interlocking device thereof of the inflatable cabinet as claimed in claim 1, wherein a second limiting rod (23) is arranged on the other side of the first limiting plate (17) relative to the screw rod (11).

5. The double-operating-shaft three-position mechanism and the interlocking device thereof of the inflatable cabinet as claimed in claim 1, wherein the mounting plate I (3) is provided with a hole I (31), a hole II (32) and a plurality of holes for inserting the movable handle shaft (2); the utility model discloses a portable electric tool, including mounting panel (3), operating handle (1), panel (27), be equipped with hole A (271), hole B (272) and bar hole (273) on the panel (27), operating handle (1) is inserted simultaneously and is located in hole A (271) and hole one (31) or insert simultaneously and locate in hole B (272) and hole two (32), and removal handle axle (2) pass bar hole (273) and insert and locate in the hole on mounting panel (3).

6. The inflatable cabinet double-operating-shaft three-position mechanism and the interlocking device thereof as claimed in claim 1, wherein when the isolating switch is in the isolating position, the moving handle shaft (2) drives the interlocking plate (26) to move along the first mounting plate (3) under the action of external force; when the interlocking plate (26) moves to the isolation-grounding operation hole, the hook on the interlocking plate (26) touches the left leaf spring (15) to drive the second limiting plate (18) to rotate, the operation handle (1) can only rotate towards the direction that the sliding block (12) moves towards one side of the grounding position, and when the sliding block (12) moves towards the opposite direction, the first limiting block (13) is limited at the second limiting plate (18);

when the three stations are in the grounding position, the sliding block (12) moves to the position of the connecting plate (22) and is in contact with the protruding structure of the connecting plate, and the connecting plate (22) drives the interlocking rod (20) to move towards the operation panel under the driving of the sliding block (12) until the interlocking rod is inserted into a hole, matched with the interlocking rod (20), in the interlocking plate (26);

when the isolating switch returns to the isolating position, the movable handle shaft (2) drives the interlocking plate (26) to move along the mounting plate I (3) under the action of external force; when the interlocking plate (26) moves to the isolation-closing operation hole, a limiting nail (14) on the interlocking plate (26) is in contact with a right leaf spring (16) to enable the interlocking plate to bend to drive a first limiting plate (17) to rotate, the operating handle (1) can only rotate towards the closing position, and a first limiting block (13) on the screw rod (11) is limited at the first limiting plate (17) when the operating handle (1) rotates in the opposite direction; when the switch-on position is reached, the sliding block (12) moves to a corresponding position, and at the moment, a first limit block (13) on the screw rod (11) limits the position of a corresponding bump (121) on the sliding block (12);

when the three stations are in the closing position, the slide block (12) moves to the position of the connecting plate (22) and contacts with the connecting plate, and the connecting plate (22) drives the interlocking rod (20) to move towards the panel (27) until the interlocking rod is inserted into a matching hole of the interlocking plate (26) and the interlocking rod (20).

Technical Field

The invention relates to a three-station mechanism of a high-pressure gas-filled switch cabinet, in particular to a double-operating-shaft three-station mechanism and an interlocking device thereof, and belongs to the technical field of driving mechanisms.

Background

The three-station mechanism is used for driving the isolating switch to realize three stations of bus, isolation and grounding, is widely applied to a high-pressure gas-filled switch cabinet body, and is matched with a circuit breaker to switch on and off a main circuit. The operation process mainly relates to three stations of closing, opening and grounding of the isolating switch, namely, when the operation mechanism is positioned at the closing position, the grounding operation can not be carried out, and when the operation mechanism is positioned at the grounding position, the closing operation can not be carried out; therefore, the safety of the isolating switch operating mechanism is ensured, and safety accidents caused by misoperation are prevented.

The existing joint defense interlocking structure of the isolation operation shaft and the grounding operation shaft of the three-station mechanism is not good enough in design and needs to be further improved.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the existing three-station mechanism is used for isolating the joint defense interlocking structure of an operating shaft and a grounding operating shaft.

In order to solve the technical problem, the invention provides a double-operating-shaft three-station mechanism of an inflatable cabinet and an interlocking device thereof, which are characterized by comprising a supporting piece, a guide plate, a screw rod and a pair of limiting rods I which are parallel to each other, wherein the supporting piece, the guide plate, the screw rod and the pair of limiting rods I are arranged between a mounting plate II and a mounting plate III; a guide block is fixed on one side of the sliding block, the guide block moves in a pair of limiting rods I which are parallel to each other, and a convex block for limiting the limiting rods I is arranged on the sliding block; the first transmission gear is meshed with the second transmission gear, the axis of the second transmission gear is connected with the second mounting plate, and the operating handle penetrates through the first mounting plate and then is connected with the axis of the second transmission gear; a first limiting plate and a second limiting plate are respectively arranged on two sides of the end part of one end, connected with the first transmission gear, of the screw rod, the bottoms of the first limiting plate and the second limiting plate are connected with a corresponding first limiting rod, a right leaf spring and a left leaf spring are respectively arranged on the first limiting plate and the second limiting plate, an interlocking plate is arranged on the outer side of the first mounting plate, a hook used for shifting the left leaf spring and a limiting nail used for shifting the right leaf spring in the motion process are arranged on the interlocking plate, a hole matched with the interlocking rod is further formed, and a movable handle shaft is fixed on the outer side of; two ends of the screw rod are respectively provided with a first limiting block; a reset torsion spring for resetting the second limiting plate and the first limiting plate is arranged between the second limiting plate and the first limiting plate; three connecting plates are arranged on the supporting piece, a protruding structure is arranged on each connecting plate, each connecting plate is connected with an interlocking rod, and a reset pressure spring for resetting the connecting plates is sleeved at one end of each interlocking rod; the guide plate is formed by splicing the first plate and the second plate, a hexagonal hole is formed in the splicing position of the first plate and the second plate, the hexagonal hole is matched with the hexagonal part of the end part of the guide block, when the end part of the guide block is completely matched with the hexagonal hole, the edges of the first plate and the second plate are mutually attached, and when the end part of the guide block is not completely matched with the hexagonal hole, the first plate and the second plate are in a separated state.

Preferably, a limiting block II is fixed on the limiting rod I.

Preferably, the screw rod is engaged with the sliding block through threads.

Preferably, the other side of the first limiting plate, which is opposite to the screw rod, is provided with a second limiting rod.

Preferably, the first mounting plate is provided with a first hole, a second hole and a plurality of holes for inserting the movable handle shaft; the panel is arranged on the outer side of the first mounting plate, a hole A, a hole B and a strip-shaped hole are formed in the panel, the operating handle is inserted into the hole A and the hole I or inserted into the hole B and the hole II, and the moving handle shaft penetrates through the strip-shaped hole and is inserted into the hole in the first mounting plate.

Preferably, when the isolating switch is in the isolating position, the movable handle shaft drives the interlocking plate to move along the first mounting plate under the action of external force; when the interlocking plate moves to the isolation-grounding operation hole, the hook on the interlocking plate touches the left leaf spring to drive the second limiting plate to rotate, the operation handle can only rotate towards the direction that the sliding block moves towards one side of the grounding position, and when the sliding block moves towards the opposite direction, the first limiting plate is limited at the second limiting plate;

when the three stations are in the grounding position, the slide block moves to the connecting plate and contacts with the protruding structure of the connecting plate, and the connecting plate drives the interlocking rod to move towards the operation panel under the driving of the slide block until the connecting plate is inserted into a hole on the interlocking plate, which is matched with the interlocking rod;

when the isolating switch returns to the isolating position, the movable handle shaft drives the interlocking plate to move along the first mounting plate under the action of external force; when the interlocking plate moves to the isolation-closing operation hole, a limiting nail on the interlocking plate is in contact with the right leaf spring, so that the interlocking plate is bent to drive a limiting plate I to rotate, the operating handle can only rotate towards the closing position at the moment, and the limiting plate I on the screw rod limits the position of the limiting plate I when the operating handle rotates in the opposite direction; when the switch-on position is reached, the sliding block moves to a corresponding position, and a first limiting block on the screw rod limits the position of a corresponding bump on the sliding block;

when the three stations are in the switching-on position, the slide block moves to the position of the connecting plate and contacts with the connecting plate, and the connecting plate drives the interlocking rod to move towards the panel until the interlocking rod is inserted into a hole, matched with the interlocking rod, on the interlocking plate.

Compared with the prior art, the invention adopts double-operating-shaft operation, has good interlocking, linkage and anti-starting effects, strong interlocking logic and convenient and reliable locking, unlocking and switching operation of the operating mechanism.

Drawings

FIG. 1 is a front view of a dual-operation-axis three-position mechanism of an inflatable cabinet and an interlocking device thereof provided by the invention;

FIG. 2 is a top view of FIG. 1;

FIGS. 3 and 4 are perspective views of the dual-operation-shaft three-station mechanism of the inflatable cabinet and the interlocking device thereof at different angles respectively;

FIG. 5 is a schematic view of a guide plate;

FIG. 6 is a schematic view of a fixation plate;

FIG. 7 is a schematic view of a mounting plate;

FIG. 8 is a schematic view of a panel;

FIG. 9 is a schematic view of the connection of the yoke plate and the interlock lever;

FIG. 10 is a schematic view of a slider;

FIG. 11 is a schematic view of the isolation switch in the isolation position;

FIG. 12 is a schematic view of the three stations in a grounded position;

FIG. 13 is a schematic view of the three stations in the closed position.

Detailed Description

In order to make the invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.