CN201112250Y

CN201112250Y - Worm-gear endless-screw type grounding interlocking mechanism in switch cabinet

Info

Publication number: CN201112250Y
Application number: CNU2007200707766U
Authority: CN
Inventors: 张宏
Original assignee: SHANGHAI TENGEN M&E (GROUP) CO Ltd
Current assignee: SHANGHAI TENGEN M&E (GROUP) CO Ltd
Priority date: 2007-06-08
Filing date: 2007-06-08
Publication date: 2008-09-10
Anticipated expiration: 2017-06-08

Abstract

The utility model relates to a worm and gear earthing interlocking mechanism in a switch cabinet. The earthing interlocking mechanism comprises a handle, an earth switch, a shaft of the earth switch and a latch of a back door and also has the structure that a lever is connected with a worm of the worm and gear; a worm gear of the worm and gear is connected with the shaft of the earth switch; the handle is connected with a connecting rod one face of which is tangental to an end face of an interlocking rod while an interlocking chip is tangental to the interlocking rod; a bending plate is matched with the lever through a screw thread; the twistlock installed on the shaft of the earth switch is buckled with the latch of the back door. Since a transmission mechanism adopts the worm and gear, the opening and the closing of the earth switch save much more labor and are provided with obvious direction of positions and have three shift positions of switch opening, rocking in or out and switch closing; in addition, each shift position can not be directly bounced with each other so as to reliably prevent the misoperation of operators and improve the safety performance of a KYN61-40.5 switch cabinet.

Description

Worm and gear type ground connection interlocking device in the switch cubicle

Technical field

The utility model relates to a kind of high-tension switch cabinet, relates in particular to the ground connection interlocking device in the KYN61-40.5 high-tension switch cabinet.

Background technology

By Figure 1A, Figure 1B as seen: the ground connection interlocking device of KYN61-40.5 switch cubicle is on the market now: by rotating operation handle I, drive macro-axis II and bevel gear III, the macro-axis VI of bevel gear III and earthed switch V connects together, and rotating operation handle I can directly divide, splice grafting ground switch V.Because the earthed switch branch of KYN61-40.5 switch cubicle, make a concerted effort to refuse big, directly rotating operation handle branch, splice grafting ground switch are hard, macro-axis does not have the earthed switch branch, closes and explain the position indication, very easily causes misoperation, has brought hidden danger for safe handling KYN61-40.5 switch cubicle.

Summary of the invention

The utility model technical issues that need to address have provided worm and gear type ground connection interlocking device in a kind of switch cubicle, are intended to solve above-mentioned defective.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

The utility model comprises: the macro-axis of handle, earthed switch, earthed switch, the lock hook at back door; Also comprise: the handle hole of blocking lever, connecting rod, bent plate, bar, worm and gear, snap close, earthed switch, circuit breaker cart, circuit breaker locking plate; The worm screw of worm and wheel worm screw links to each other, and the worm gear of worm and gear links to each other with the macro-axis of earthed switch; Handle links to each other with connecting rod, and the one side of connecting rod is tangent with the end face of blocking lever, and circuit breaker locking plate and blocking lever are tangent; Bent plate and bar are threaded engagement; Be installed in the lock hook that snap close on the macro-axis of earthed switch fastens the back door;

Compared with prior art, the beneficial effects of the utility model are: because worm-and-wheel gear is adopted in transmission, divide, splice grafting ground switch is more laborsaving; Branch, splice grafting ground switch have the visibility point indication and have branch to explain, shake into and shake out, close and explain three gears, and each gear can not directly be gone here and there mutually, has prevented operating personnel's misoperation reliably, has improved the security performance of KYN61-40.5 switch cubicle.

Description of drawings

Figure 1A is the ground connection interlocking device structure chart of existing KYN61-40.5 switch cubicle;

Figure 1B be among Figure 1A B-B to view;

Fig. 2 A is a structure chart of the present utility model;

Fig. 2 B is that the A of Fig. 2 A is to view;

Fig. 2 C is that the B-B of Fig. 2 A is to view;

Fig. 2 D is that the C-C of Fig. 2 A is to view;

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:

By Fig. 2 A, Fig. 2 B, Fig. 2 C, Fig. 2 D as seen: the utility model comprises: the macro-axis 9 of handle 3, earthed switch 6, earthed switch, the lock hook 13 at back door 14; Also comprise: the handle hole 10 of blocking lever 1, connecting rod 2, bent plate 4, bar 5, worm and gear 7, snap close 8, earthed switch, circuit breaker cart 12, circuit breaker locking plate 11; Bar 5 links to each other with the worm screw of worm and gear 7, and the worm gear of worm and gear 7 links to each other with the macro-axis 9 of earthed switch 6; Handle 3 links to each other with connecting rod 2, and the one side of connecting rod 2 is tangent with the end face of blocking lever 1, and circuit breaker locking plate 11 is tangent with blocking lever 1; Bent plate 4 is threaded engagement with bar 5; Be installed in the lock hook 13 that snap close 8 on the macro-axis 9 of earthed switch fastens back door 14.

Insert crank in the earthed switch handle hole, crank links to each other with bar 5, thereby rotates crank dwang 5, and bar 5 drives worm and gear 7, and worm and gear 7 drives the macro-axis 9 of earthed switch 6, rotates crank and can realize deciliter earthed switch 6.

3 pairs on handle should have 3 gears: divide and explain, shake into and shake out, close and explain, each gear can not be gone here and there mutually.The operating sequence of handle 3 can only be: divide to explain → to shake into → close and explain or divide and explain → shake out → close and explain.

Operation principle of the present utility model is:

Splice grafting ground switch:

Turning handle 3 into shakes out the position to shaking, insert crank and clockwise rotate bar 5, worm and gear 7 is connected and corresponding rotation with bar 5, because worm and gear 7 is connected with the macro-axis of earthed switch 6, after crank goes to a fixing turn, the spring of earthed switch 6 turns over flex point, and earthed switch 6 closes automatically and explains, and turning handle 3 is explained the position to closing.

Divide the ground connection switch:

Turning handle 3 into shakes out the position to shaking, insert crank and rotate counterclockwise bar 5, worm and gear 7 is connected and corresponding rotation with bar 5, because worm and gear 7 is connected with the macro-axis of earthed switch 6, after crank goes to a fixing turn, the spring of earthed switch 6 turns over flex point, and earthed switch 6 divides automatically to be explained, and turning handle 3 to branch is explained the position.

Of the present utility model five anti-interlockings:

1, circuit breaker cart 12 can not splice grafting ground switch in the service position

Clockwise rotate handle 3, connecting rod 2 connects together with handle 3 and moves up thereupon, because circuit breaker cart is positioned at the service position, circuit breaker cart locking plate 11 withstands blocking lever 1 left, connecting rod 2 can not on move, handle 3 can not go to shake and into shake out the position, and the earthed switch handle hole is blocked by handle 3, and crank can not insert the earthed switch handle hole and can not splice grafting ground switch 6.

2, earthed switch is in the state of explaining that closes, and circuit breaker cart can not move in test position

Earthed switch 6 in closing the process of explaining, bent plate 4 since with bar 5 are threaded engagement, bent plate 4 is reach to the right, closes the state of explaining at earthed switch 6, bent plate 4 withstands connecting rod 2, moves to the extreme higher position on the connecting rod 2, connecting rod 2 withstands blocking lever 1.Circuit breaker cart enters test position, because blocking lever 1 is withstood by connecting rod 2, the circuit breaker cart locking plate can not stretch out, and circuit breaker cart can not shake, and circuit breaker cart can not move in test position.

3, earthed switch does not close, and can not enter the cable vault

Earthed switch 6 is in branch when explaining state, snap close 8 fastens the lock hook 13 at back door 14, can not open back door 14 and enter the cable vault and overhaul, and earthed switch 6 is in and closes when explaining state, snap close 8 separates with the lock hook 13 at back door 14, opens back door 14 and can enter the cable vault and overhaul.

The utility model is because transmission mechanism adopts worm and gear, divides, splice grafting ground switch is more laborsaving; Significantly branch, the position of the switch, splice grafting ground are indicated and are had branch to explain, shake into and shake out, close and explain three gears, and each gear can not directly be gone here and there mutually, has prevented operating personnel's misoperation reliably, has improved the security performance of KYN61-40.5 switch cubicle.

Claims

1. worm and gear type ground connection interlocking device in the switch cubicle comprises: the macro-axis (9) of handle (3), earthed switch (6), earthed switch, the lock hook (13) of back door (14); It is characterized in that: also comprise: the handle hole (10) of blocking lever (1), connecting rod (2), bent plate (4), bar (5), worm and gear (7), snap close (8), earthed switch, circuit breaker cart (12), circuit breaker locking plate (11); Bar (5) links to each other with the worm screw of worm and gear (7), and the worm gear of worm and gear (7) links to each other with the macro-axis (9) of earthed switch (6); Handle (3) links to each other with connecting rod (2), and the one side of connecting rod (2) is tangent with the end face of blocking lever (1), and circuit breaker locking plate (11) is tangent with blocking lever (1); Bent plate (4) is a threaded engagement with bar (5); Be installed in the lock hook (13) that snap close (8) on the macro-axis (9) of earthed switch fastens back door (14).