CN210668198U

CN210668198U - Safety control mechanism of high-voltage control cabinet knife switch

Info

Publication number: CN210668198U
Application number: CN201921281197.5U
Authority: CN
Inventors: 向群; 张繁; 罗立荣; 王波; 刘伟
Original assignee: Hubei Edian Deli Electrical Co ltd
Current assignee: Hubei Edian Deli Electrical Co ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-06-02
Anticipated expiration: 2029-08-08

Abstract

The utility model discloses a safety control mechanism of high tension control cabinet switch, base fixed mounting has seted up spacing hole on the base at the internal of cabinet, still is provided with mated guide cylinder on the base, is provided with gag lever post and mated guide post in the bottom of insulating connecting plate, and mated guide post activity is planted in mated guide cylinder, and the gag lever post activity is worn to put in spacing downthehole, is provided with the limiting plate on the gag lever post of base below, the spring housing is put on the guide post, and the both ends of spring support respectively and lean on insulating connecting plate and guide cylinder, mated plug-in strip fixed mounting is on insulating connecting plate, is provided with the depression bar on the upper portion of insulating connecting plate, insulating seat fixed mounting is internal at the cabinet, the utility model discloses the advantage is: the safety protection function is good, and accidental electric shock accidents are effectively avoided.

Description

Safety control mechanism of high-voltage control cabinet knife switch

Technical Field

The utility model relates to a technical field of high tension switchgear, more specifically say so and relate to high tension switchgear safety protection mechanism's technical field.

Background

The high-voltage switch cabinet is widely applied to power users of power plants, transformer substations, plant and mining enterprises and the like, and is used for opening, closing, controlling and protecting power utilization equipment in the process of power generation, power transmission, power distribution and electric energy conversion of a power system. The high-voltage switch cabinet can be divided into a fixed switch cabinet and a draw-out switch cabinet in the structural mode, and the fixed high-voltage switch cabinet generally comprises a cabinet body, a cabinet door movably mounted on the cabinet body and electrical equipment mounted in the cabinet body. Generally install isolation switch in the fixed high tension switchgear, and present common fixed high tension switchgear generally does not set up the safety device of isolation switch, opens the back by the accident when high tension switchgear's cabinet door, probably leads to non professional to take place unexpected electric shock accident, has very big potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above-mentioned not enough and providing a simple structure, barrier propterty is good, can effectively avoid the safety control mechanism of the high tension switchgear switch of unexpected electric shock occurence of failure.

The utility model discloses a solve above-mentioned technical problem and the technical solution who adopts as follows:

the safety control mechanism of the high-voltage control cabinet disconnecting link comprises a cabinet body and a cabinet door, wherein the front part of the cabinet body is in an open shape, the cabinet door is movably hinged at the open position of the front part of the cabinet body, the safety control mechanism further comprises a base, an insulating seat, paired fuses, paired conducting seats, paired disconnecting links, paired first contacts, paired second contacts, an insulating connecting plate, a base, a spring, a middle shaft, a worm, a rack and a lock pin, the base is fixedly arranged in the cabinet body, a limiting hole is formed in the base, paired guide cylinders are further arranged on the base, a limiting rod and paired guide columns are arranged at the bottom of the insulating connecting plate, the paired guide columns are movably inserted in the paired guide cylinders, the limiting rod is movably inserted in the limiting hole, a limiting plate is arranged on the limiting rod below the base, the spring is sleeved on the guide columns, and two end parts of the spring are respectively abutted against the insulating connecting plate and the guide cylinders, the paired knife switches are fixedly arranged on the insulating connecting plate, a pressure rod is arranged at the upper part of the insulating connecting plate, the insulating seat is fixedly arranged in the cabinet body, the paired conducting seat, the paired first contact and the paired second contact are respectively fixedly arranged on the insulating seat, clamping plates are respectively arranged on the paired first contact and the paired second contact, wire inlet terminals are respectively arranged on the paired first contact, wire outlet terminals are respectively arranged on the paired second contact, two end parts of the paired fuse are respectively fixedly arranged on the paired wire outlet terminals and the paired conducting seat, the paired knife switches are respectively clamped in the clamping plates of the first contact and the second contact, a shell is arranged on the cabinet door, the middle shaft and the worm are respectively movably arranged in the shell, a gear and a worm wheel are arranged on the middle shaft, and the worm wheel is meshed with the worm wheel, the cabinet door is provided with paired guide sleeves, the rack is movably arranged in the paired guide sleeves in a penetrating mode and movably arranged in the shell in a penetrating mode, the rack is meshed with the gear, the rack is provided with a pressing plate, the pressing plate is pressed on the pressing rod, a locking groove is formed in one side of the cabinet body, the shell is provided with a lock seat, a limiting groove is formed in the lock seat, the lock pin is movably clamped in the limiting groove of the lock seat, a threaded hole is formed in the lock pin, a screw rod is arranged at one end of the center shaft and movably arranged in the limiting groove in a penetrating mode and is rotatably arranged in the threaded hole of the lock pin, and the lock pin is clamped in the locking groove.

One end part of the worm penetrates out of the cabinet door, and a knob end is arranged on the worm outside the cabinet door.

The cabinet door is movably hinged and installed at an opening at the front part of the cabinet body through a hinge.

The utility model adopts the beneficial effect that above-mentioned technical solution can reach is: when needs open the cabinet door, the turn-knob end rotates, it rotates to drive the worm wheel through the worm, and then drive gear and screw rod and rotate, it removes along the spacing groove to drive the lockpin through the screw rod, make the lockpin withdraw from the locked groove, the cabinet door is opened, and simultaneously, the gear is at the pivoted in-process, drive rack and clamp plate rebound, make mated plug-in strip rebound under the elastic force effect of spring, deviate from in the splint, thereby the power failure, make only under the condition that the plug-in strip is disconnected, just can open the cabinet door, fine safety protection function has been realized, the emergence of unexpected electric shock accident has effectively been avoided.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top cross-sectional view of the present invention shown in fig. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a partially enlarged schematic view of a portion B in fig. 2.

Detailed Description

As shown in fig. 1 and 2, the safety control mechanism for a high-voltage control cabinet knife switch comprises a cabinet body 1 and a cabinet door 2, wherein the front part of the cabinet body 1 is open, the cabinet door 2 is movably hinged at the open part of the front part of the cabinet body 1 through a hinge 3, the safety control mechanism further comprises a base 11, an insulating seat 4, a pair of fuses 5, a pair of conducting seats 6, a pair of knife switches 7, a pair of first contacts 8, a pair of second contacts 9, an insulating connecting plate 10, a base 11, a spring 12, a middle shaft 13, a worm 14, a rack 15 and a lock pin 16, the base 11 is fixedly arranged in the cabinet body 1, a limit hole 18 is formed in the base 11, a pair of guide cylinders 19 are further arranged on the base 11, a limit rod 20 and a pair of guide columns 21 are arranged at the bottom of the insulating connecting plate 10, the pair of guide columns 21 are movably inserted in the pair of guide cylinders 19, the limit rod 20 is movably inserted in the limit hole 18, a limiting plate 22 is arranged on a limiting rod 20 below the base 11, the spring 12 is sleeved on a guide post 21, two end parts of the spring 12 are respectively abutted against the insulating connecting plate 10 and the guide cylinder 19, the paired knife switches 7 are fixedly arranged on the insulating connecting plate 10, and a pressing rod 23 is arranged on the upper part of the insulating connecting plate 10. As shown in fig. 3, the insulating base 4 is fixedly mounted in the cabinet 1, the paired conducting bases 6, the paired first contacts 8, and the paired second contacts 9 are respectively fixedly mounted on the insulating base 4, clamping plates 24 are respectively disposed on the paired first contacts 8 and the paired second contacts 9, incoming terminals 25 are respectively disposed on the paired first contacts 8, outgoing terminals 26 are respectively disposed on the paired second contacts 9, both end portions of the paired fuses 5 are respectively fixedly mounted on the paired outgoing terminals 26 and the paired conducting bases 6, and the paired blades 7 are respectively clamped in the clamping plates 24 of the first contacts 8 and the second contacts 9. As shown in fig. 4, a housing 27 is disposed on the cabinet door 2, the middle shaft 13 and the worm 14 are respectively movably mounted in the housing 27, one end of the worm 14 penetrates out of the cabinet door 2, a knob end 28 is disposed on the worm 14 located outside the cabinet door 2, a gear 29 and a worm wheel 30 are disposed on the middle shaft 13, the worm 14 is engaged with the worm wheel 30, a pair of guide sleeves 31 are disposed on the cabinet door 2, the rack 15 is movably inserted in the pair of guide sleeves 31 and movably inserted in the housing 27, the rack 15 is engaged with the gear 29, a pressing plate 32 is disposed on the rack 15, and the pressing plate 32 is pressed on the pressing rod 23. A lock groove 33 is arranged in one side of the cabinet body 1, a lock seat 34 is arranged on the shell 27, a limit groove 35 is arranged in the lock seat 34, the lock pin 16 is movably clamped in the limit groove 35 of the lock seat 34, a threaded hole 37 is arranged in the lock pin 16, a screw rod 38 is arranged on one end part of the middle shaft 13, the screw rod 38 is movably inserted in the limit groove 35 and is screwed in the threaded hole 37 of the lock pin 16, and the lock pin 16 is clamped in the lock groove 33.

The working principle of the safety control mechanism of the high-voltage control cabinet disconnecting link is as follows: when the cabinet door 2 needs to be opened, the knob end 28 is rotated, the worm 14 drives the worm wheel 30 to rotate, the gear 29 and the screw rod 38 are further driven to rotate, the screw rod 38 drives the lock pin 16 to move along the limiting groove 35, the lock pin 16 is made to exit from the lock groove 33, the cabinet door 2 is opened, meanwhile, the gear 29 drives the rack 15 and the pressing plate 32 to move upwards in the rotating process, the paired switch blades 7 move upwards under the elastic action of the spring 12 and are separated from the clamping plate 24, the power supply is disconnected, only when the switch blades 7 are disconnected, the cabinet door 2 can be opened, and safety protection is achieved.

Claims

1. Safety control mechanism of high tension control cabinet switch, it is including the cabinet body and cabinet door, the front portion of the cabinet body is uncovered form, the cabinet door activity hinge joint is installed in the anterior uncovered department of the cabinet body, its characterized in that: the novel energy-saving cabinet is characterized by further comprising a base, an insulating seat, paired fuses, paired conducting seats, paired knife switches, paired first contacts, paired second contacts, an insulating connecting plate, a base, springs, a middle shaft, a worm, a rack and a lock pin, wherein the base is fixedly arranged in the cabinet body, limiting holes are formed in the base, paired guide cylinders are further arranged on the base, a limiting rod and paired guide columns are arranged at the bottom of the insulating connecting plate, the paired guide columns are movably inserted into the paired guide cylinders, the limiting rod is movably penetrated in the limiting holes, a limiting plate is arranged on the limiting rod below the base, the springs are sleeved on the guide columns, two end portions of the springs are respectively abutted against the insulating connecting plate and the guide cylinders, the paired knife switches are fixedly arranged on the insulating connecting plate, a pressing rod is arranged at the upper portion of the insulating connecting plate, the insulating seat is fixedly arranged in the cabinet body, the paired conducting seats, the paired first contacts and the paired second contacts are respectively and fixedly arranged on the insulating seats, clamping plates are respectively arranged on the paired first contacts and the paired second contacts, incoming wire terminals are respectively arranged on the paired first contacts, outgoing wire terminals are respectively arranged on the paired second contacts, two end parts of the paired fuses are respectively and fixedly arranged on the paired outgoing wire terminals and the paired conducting seats, the paired knife switches are respectively clamped in the clamping plates of the first contacts and the second contacts, a shell is arranged on the cabinet door, the middle shaft and the worm are respectively and movably arranged in the shell, a gear and a worm wheel are arranged on the middle shaft, the worm wheel is meshed with the worm wheel, paired guide sleeves are arranged on the worm wheel, the rack is movably arranged in the paired guide sleeves and movably arranged in the shell, and the rack is meshed with the gear, the rack is provided with a pressure plate which is pressed on the pressure rod, a lock groove is arranged inside one side of the cabinet body, the shell is provided with a lock seat, a limit groove is arranged in the lock seat, the lock pin is movably clamped in the limit groove of the lock seat, a threaded hole is arranged in the lock pin, a screw rod is arranged on one end part of the middle shaft, the screw rod is movably arranged in the limit groove in a penetrating manner and is rotatably arranged in the threaded hole of the lock pin, and the lock pin is clamped in the lock groove.

2. The safety control mechanism of the high-voltage control cabinet knife switch according to claim 1, characterized in that: one end part of the worm penetrates out of the cabinet door, and a knob end is arranged on the worm outside the cabinet door.

3. The safety control mechanism of the high-voltage control cabinet knife switch according to claim 1 or 2, characterized in that: the cabinet door is movably hinged and installed at an opening at the front part of the cabinet body through a hinge.