CN102881486A - Interlocking mechanism of medium pressure switchgear - Google Patents
Interlocking mechanism of medium pressure switchgear Download PDFInfo
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- CN102881486A CN102881486A CN2012103962042A CN201210396204A CN102881486A CN 102881486 A CN102881486 A CN 102881486A CN 2012103962042 A CN2012103962042 A CN 2012103962042A CN 201210396204 A CN201210396204 A CN 201210396204A CN 102881486 A CN102881486 A CN 102881486A
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- push rod
- interlocking
- depression bar
- spring
- fan matrix
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Abstract
The invention relates to an interlocking mechanism of a medium pressure switchgear. A ground knife interlocking fan-shaped sheet is fixedly arranged on a ground knife shaft; a compression bar fixing base, a push rod fixing base and a fan-shaped sheet fixing base are fixedly arranged on a cabinet body; a compression bar is glidingly arranged in the compression bar fixing base; the ground knife interlocking fan-shaped sheet is contacted with the top end part of the compression bar; a spring baffle pin is fixedly arranged on the compression bar; a first spring is sleeved on the compression bar between the spring baffle pin and a bottom panel of the compression bar fixing base; a push rod is glidingly arranged in the push rod fixing base; a spring baffle pin is fixedly arranged on the push rod; a second spring is sleeved on the push rod between the spring baffle pin and the right side wall of the cabinet body; an interlocking cylindrical pin is fixedly arranged on the right end part of the push rod; an interlocking fan-shaped sheet is hinged to the fan-shaped sheet fixing base; a lower door lock tongue and a welding nut are arranged on the lower door; a slotted hole is formed in the lower door lock tongue; and a stop bolt is arranged in the welding nut. The interlocking mechanism is applied to a set of switchgear equipment of an electric apparatus, can prevent a worker from electrically and mistakenly opening the lower door of the switchgear, and has the advantages of simple structure, convenience in mounting, low cost and reliable work.
Description
Technical field
The invention belongs to electrical equipment complete switch technical equipment field, the present invention especially relates to a kind of Medium Voltage Switchgear interlocking device.
Background technology
In electrical assemblies switchgear equipment, for the reliability service that ensures metal enclosed switchgear and operator's personal safety, must satisfy five anti-requirements according to national regulation:
1, prevents that mistake from dividing and mistake is closed circuit breaker;
2, prevent on-load deciliter insulating contact;
3, prevent band electrical ground;
4, prevent that ground connection from sending electricity;
5, prevent mistakenly entering charged chamber.
In order to have realized the 5th in five anti-the requirements, prevent mistakenly entering charged chamber.The interlocking of earthed switch and Xiamen is realized by the mode of electronics or machinery that generally traditional situation about realizing in the electronics mode is to use electromagnet.Because service time of switch cubicle is generally more than 10 years, the easy ageing failure of electromagnet coil, and also the electronic product failure rate is high.Make the former disabler that prevents mistakenly entering charged chamber that should possess of equipment.Mechanical system commonly used realizes that interlocking is not that installation volume is larger, is exactly complicated structure.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide that a kind of linkage is good, simple in structure, machinery flexibly, the Medium Voltage Switchgear interlocking device of reliable in function.
According to technical scheme provided by the invention, described Medium Voltage Switchgear interlocking device is fixed with ground cutter interlocking fan matrix at the ground cutter shaft; Be fixed with the depression bar holder at cabinet, push rod holder and fan matrix holder, in the depression bar holder, be slidingly fitted with depression bar, ground cutter interlocking fan matrix contacts with the top ends of depression bar, be fixed with the spring backing pin at depression bar, depression bar between the bottom panel of spring backing pin and depression bar holder is socketed with the first spring, in the push rod holder, be slidingly fitted with push rod, be fixed with the spring backing pin at push rod, push rod between the right side wall of spring backing pin and cabinet is socketed with the second spring, be fixed with the interlocking straight pin in the right part of push rod, be hinged with interlocking fan matrix at fan matrix holder, one end of interlocking fan matrix contacts with the bottom of depression bar, and the other end of interlocking fan matrix contacts with the left part of push rod; In the Xiamen lower door bolt and welded nut are installed, offer slotted eye at lower door bolt, an only screw is installed in welded nut.
Offer the depression bar groove in the bottom of depression bar, an end of interlocking fan matrix embeds in the depression bar groove.
Offer the push rod groove in the left part of push rod, the other end of interlocking fan matrix embeds in the push rod groove.
The present invention is applicable to electrical assemblies switchgear equipment, the charged switch cubicle Xiamen that opens by mistake of the personnel that can prevent; And that the present invention has is simple in structure, easy for installation, with low cost, the advantage of reliable operation.
Description of drawings
Fig. 1 is the generalized section of the present invention when the ground cutter shaft is in gate-dividing state.
Fig. 2 is the schematic diagram that the present invention's interlocking device's interlocking straight pin when the ground cutter shaft is in gate-dividing state blocks dead bolt.
Fig. 3 is one of the present invention's generalized section when the ground cutter shaft is in "on" position.
Fig. 4 is two of the generalized section of the present invention when the ground cutter shaft is in "on" position.
Embodiment
The invention will be further described below in conjunction with specific embodiment.
As shown in the figure, this Medium Voltage Switchgear interlocking device is fixed with ground cutter interlocking fan matrix 14 at ground cutter shaft 15; Be fixed with depression bar holder 1 at cabinet 13, push rod holder 7 and fan matrix holder 9, in depression bar holder 1, be slidingly fitted with depression bar 3, ground cutter interlocking fan matrix 14 contacts with the top ends of depression bar 3, be fixed with spring backing pin 2 at depression bar 3, depression bar 3 between the bottom panel of spring backing pin 2 and depression bar holder 1 is socketed with the first spring 4, in push rod holder 7, be slidingly fitted with push rod 6, be fixed with spring backing pin 2 at push rod 6, push rod 6 between the right side wall of spring backing pin 2 and cabinet 13 is socketed with the second spring 40, be fixed with interlocking straight pin 8 in the right part of push rod 6, be hinged with interlocking fan matrix 5 at fan matrix holder 9, one end of interlocking fan matrix 5 contacts with the bottom of depression bar 3, and the other end of interlocking fan matrix 5 contacts with the left part of push rod 6; 12 are equipped with lower door bolt 11 and welded nut 10 in the Xiamen, offer slotted eye at lower door bolt 11, and an only screw 16 is installed in welded nut 10.
Offer depression bar groove 30 in the bottom of depression bar 3, an end of interlocking fan matrix 5 embeds in the depression bar groove 30.
Offer push rod groove 60 in the left part of push rod 6, the other end of interlocking fan matrix 5 embeds in the push rod groove 60.
The present invention includes depression bar holder 1, depression bar 3, the first spring 4, interlocking fan matrix 5, push rod 6, push rod holder 7, fan matrix holder 9, lower door bolt 11, welded nut 10, end a screw 16, emergency release label.Ground cutter interlocking fan matrix 14 is fixedly mounted on the ground cutter shaft 15, and depression bar holder 1, umbellate form sheet holder 9 and push rod holder 7 are fixedly mounted on the cabinet 13, and depression bar 3, the first spring 4 are installed on the depression bar holder 1; Interlocking fan matrix 5 is installed on the umbellate form sheet holder 9, and pine is joined; Push rod 6 and spring 4 are installed on the push rod holder 7; Interlocking straight pin 8 is installed on the push rod 6, and lower door bolt 11 is installed on the Xiamen 12, and welded nut 10 is welded on the Xiamen, ends a screw 16 and is installed in the welded nut.Be affixed on Xiamen 12 with the anxious release label paper of a tensioning, cover an only screw 16.Can't see in the ordinary course of things the emergency release hole, only just seeing and end a screw 16 in the emergency release hole when tearing label, can carry out the emergency release operation.
Ground cutter shaft 15 in operating personnel's land used cutter operating grip operation indoor metal armouring withdraw type switch cabinet, make it to turn to open position, hexagonal ground cutter shaft 15 drives ground cutter interlocking fan matrix 14 and rotates, make the long distance end of ground cutter interlocking fan matrix down, toward pressing down, the first spring 4 on the depression bar 3 is subjected to force compresses to interlocking fan matrix 14 with depression bar 3, depression bar 35 one the downward thrusts of umbellate form sheet of interlocking, the axle center of interlocking fan matrix 5 is fixed, and rotate in its axle center of can only having mercy on.Certain angle is rotated in interlocking fan matrix 5 its axle center of having mercy on, and the power of the turning handle vertical direction of interlocking fan matrix 5 is converted into the power of horizontal direction, and interlocking fan matrix 5 presses push rod 6, makes push rod 6 toward the horizontal direction displacements.Depression bar 3 and push rod 6 is the concavity structure with interlocking fan matrix 5 contact positions, can prevent interlocking fan matrix 5 position of slipping away.Spring 4 on the push rod 6 gives push rod 6 elastic force opposite with push rod 6 directions of motion, the certain distance that push rod 6 moves horizontally, the second spring 40 on the compression push rod 6.Interlocking straight pin 8 is screwed on the push rod 6 by screw thread.Push rod 6 drives the motion that interlocking straight pin 8 is done horizontal direction together.Interlocking straight pin 8 is in the cabinet right side wall 13 front mother rib lateral rotundums all the time, and is concentric with circular hole, do not break away from cabinet right side wall 13.As break away from right side wall and cause easily mechanism blockage.At this moment, be in the lower time of state of closing such as the Xiamen of indoor metal armouring withdraw type switch cabinet, interlocking straight pin 8 will snap in the slotted eye of lower door bolt 11.The movement of the lower door bolt 11 of restriction is because lower door bolt 11 can't move, so can't make lower door bolt 11 break away from snap close 17.The Xiamen of indoor metal armouring withdraw type switch cabinet can't be opened.
When the ground cutter shaft 15 that rotates indoor metal armouring withdraw type switch cabinet to closing position, ground cutter shaft 15 drives ground cuttves interlocking fan matrix 14 low coverage ends down, depression bar 3 relies on up bullet of cover the first spring 4 thereon, terminates in ground cutter interlocking fan matrix 14 low coverage ends; Simultaneously push rod 6 relies on the second spring 40 bullet backward on it, and push rod 6 and interlocking straight pin 8 retreat together, promote interlocking fan matrix 5 and turn an angle, and being still in interlocking fan matrix 5 left side contact points and running into depression bar 3.Interlocking straight pin 8 breaks away from the catching groove of lower door bolt 11.At this moment, lower door bolt 11 can normally move, and door lock can be opened.When emergency or interlock lockedly can't open the Xiamen time, tear the emergency release label that is attached on the Xiamen 12, expose to be spun on and end a screw 16 on the welded nut 10, turn clockwise counterclockwise with corresponding instrument, will end a screw 16 and withdraw from.Can expose the screw on the welded nut 10 this moment on the door-plate, one end that can expose the straight pin 8 of interlocking in the screw, this moment, visible interlocking straight pin 8 was stuck in lower door bolt 11 slotted eyes, the available instrument corresponding with interlocking straight pin 8 head grooves is rotated counterclockwise or turns clockwise and turn interlocking straight pin 8, make interlocking straight pin 8 pinch ins, when the slotted eye on the lower door bolt 11 of interlocking straight pin 8 disengagings, withdraw from the used instrument of rotation.Can normally open Xiamen 12 this moment.Realized the emergency opening of Xiamen 12.The straight pin 8 of will interlocking after open Xiamen 12 screws out 6 ~ 8 millimeters, can realize resetting of interlock.
The present invention utilizes the rotation of the ground cutter shaft 15 of operational grounding switch, the ground cutter interlocking fan matrix 14 that drives on the ground cutter shaft 15 is rotated, ground cutter interlocking fan matrix 14 is in long apart from end, ground cutter interlocking fan matrix 14 gives depression bar 3 pressure of vertical direction in the interlocking device, depression bar 3 is moved down, the interlocking fan matrix 5 of rotating around the axle center by an energy is converted into the power of horizontal direction with the power of vertical direction, in other words the displacement of vertical direction is converted into the displacement of horizontal direction.The interlocking fan matrix 5 that can rotate around the axle center passes to power or displacement the push rod 6 of horizontal direction.Be stuck in after push rod 6 displacements of horizontal direction open the door must be mobile the dead bolt slotted eye in.Because must allow lower door bolt 11 move as opening the Xiamen, break away from snap close.And this moment, lower door bolt 11 was given lockedly, can't move, and had solidly showed the function that ground cutter shaft 15 cannot be opened in the open position Xiamen.
When local cutter shaft 15 was in closing position, the ground cutter interlocking fan matrix 14 on the ground cutter shaft 15 turned to the short distance end.The resilience force of upper the first spring 4 of mechanism makes the depression bar 3 of vertical direction up mobile, the push rod 6 of horizontal direction is moved to the left, interlocking straight pin 8 on push rod 6 and the push rod 6 breaks away from the slotted eye on the lower door bolt 11, and this moment, lower door bolt 11 can move, and door-plate can be opened.And when needing emergency release, only need the total length of the interlocking straight pin 8 on push rod 6 and the push rod 6 is dwindled, the slotted eye that the interlocking straight pin 8 on push rod 6 and the push rod 6 is broken away from the lower door bolts 11 just can be realized the emergency release function.
Claims (3)
1. a Medium Voltage Switchgear interlocking device is characterized in that: be fixed with ground cutter interlocking fan matrix (14) at ground cutter shaft (15); Be fixed with depression bar holder (1) at cabinet (13), push rod holder (7) and fan matrix holder (9), in depression bar holder (1), be slidingly fitted with depression bar (3), ground cutter interlocking fan matrix (14) contacts with the top ends of depression bar (3), be fixed with spring backing pin (2) at depression bar (3), depression bar (3) between the bottom panel of spring backing pin (2) and depression bar holder (1) is socketed with the first spring (4), in push rod holder (7), be slidingly fitted with push rod (6), be fixed with spring backing pin (2) at push rod (6), push rod (6) between the right side wall of spring backing pin (2) and cabinet 13 is socketed with the second spring (40), be fixed with interlocking straight pin (8) in the right part of push rod (6), be hinged with interlocking fan matrix (5) at fan matrix holder (9), one end of interlocking fan matrix (5) contacts with the bottom of depression bar (3), and the other end of interlocking fan matrix (5) contacts with the left part of push rod (6); (12) are equipped with lower door bolt (11) and welded nut (10) in the Xiamen, offer slotted eye at lower door bolt (11), and an only screw (16) is installed in welded nut (10).
2. Medium Voltage Switchgear as claimed in claim 1 interlocking device, it is characterized in that: offer depression bar groove (30) in the bottom of depression bar (3), an end of interlocking fan matrix (5) embeds in the depression bar groove (30).
3. Medium Voltage Switchgear as claimed in claim 1 interlocking device, it is characterized in that: offer push rod groove (60) in the left part of push rod (6), the other end of interlocking fan matrix (5) embeds in the push rod groove (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210396204.2A CN102881486B (en) | 2012-10-17 | 2012-10-17 | Interlocking mechanism of medium pressure switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210396204.2A CN102881486B (en) | 2012-10-17 | 2012-10-17 | Interlocking mechanism of medium pressure switchgear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102881486A true CN102881486A (en) | 2013-01-16 |
| CN102881486B CN102881486B (en) | 2014-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210396204.2A Active CN102881486B (en) | 2012-10-17 | 2012-10-17 | Interlocking mechanism of medium pressure switchgear |
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| Country | Link |
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| CN (1) | CN102881486B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069521A (en) * | 2017-06-07 | 2017-08-18 | 河南森源电气股份有限公司 | A kind of switch cubicle |
| CN108511231A (en) * | 2018-05-30 | 2018-09-07 | 福建中能电气有限公司 | A kind of interlock for three position mechanism and breaker mechanism |
| CN108807038A (en) * | 2018-06-28 | 2018-11-13 | 上海万控柜架有限公司 | A kind of lower door interlocking mechanism |
| CN109559919A (en) * | 2018-12-17 | 2019-04-02 | 江苏大烨智能电气股份有限公司 | A kind of high-tension switch gear mechanism interlock |
| CN112509835A (en) * | 2020-09-25 | 2021-03-16 | 河南平高通用电气有限公司 | Interlocking device of grounding switch and front lower door in switch cabinet and switch cabinet |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201032613Y (en) * | 2007-02-16 | 2008-03-05 | 常熟开关制造有限公司(原常熟开关厂） | Interlocking device for switching equipment |
| CN201252037Y (en) * | 2008-09-05 | 2009-06-03 | 厦门华电开关有限公司 | Interlocking device for cable vault door |
| CN201726041U (en) * | 2010-05-07 | 2011-01-26 | 大全集团有限公司 | Grounding switch interlocking device |
| CN202905516U (en) * | 2012-10-17 | 2013-04-24 | 博耳(无锡)电力成套有限公司 | Medium voltage switch cabinet interlocking mechanism |
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2012
- 2012-10-17 CN CN201210396204.2A patent/CN102881486B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201032613Y (en) * | 2007-02-16 | 2008-03-05 | 常熟开关制造有限公司(原常熟开关厂） | Interlocking device for switching equipment |
| CN201252037Y (en) * | 2008-09-05 | 2009-06-03 | 厦门华电开关有限公司 | Interlocking device for cable vault door |
| CN201726041U (en) * | 2010-05-07 | 2011-01-26 | 大全集团有限公司 | Grounding switch interlocking device |
| CN202905516U (en) * | 2012-10-17 | 2013-04-24 | 博耳(无锡)电力成套有限公司 | Medium voltage switch cabinet interlocking mechanism |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069521A (en) * | 2017-06-07 | 2017-08-18 | 河南森源电气股份有限公司 | A kind of switch cubicle |
| CN107069521B (en) * | 2017-06-07 | 2024-03-15 | 河南森源电气股份有限公司 | Switch cabinet |
| CN108511231A (en) * | 2018-05-30 | 2018-09-07 | 福建中能电气有限公司 | A kind of interlock for three position mechanism and breaker mechanism |
| CN108511231B (en) * | 2018-05-30 | 2024-02-23 | 福建中能电气有限公司 | Interlocking device for three-station mechanism and circuit breaker mechanism |
| CN108807038A (en) * | 2018-06-28 | 2018-11-13 | 上海万控柜架有限公司 | A kind of lower door interlocking mechanism |
| CN109559919A (en) * | 2018-12-17 | 2019-04-02 | 江苏大烨智能电气股份有限公司 | A kind of high-tension switch gear mechanism interlock |
| CN112509835A (en) * | 2020-09-25 | 2021-03-16 | 河南平高通用电气有限公司 | Interlocking device of grounding switch and front lower door in switch cabinet and switch cabinet |
| CN112509835B (en) * | 2020-09-25 | 2023-03-31 | 河南平高通用电气有限公司 | Interlocking device of grounding switch and front lower door in switch cabinet and switch cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102881486B (en) | 2014-08-27 |
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