CN2157592Y - Isolating changing-over switch - Google Patents
Isolating changing-over switch Download PDFInfo
- Publication number
- CN2157592Y CN2157592Y CN 93227933 CN93227933U CN2157592Y CN 2157592 Y CN2157592 Y CN 2157592Y CN 93227933 CN93227933 CN 93227933 CN 93227933 U CN93227933 U CN 93227933U CN 2157592 Y CN2157592 Y CN 2157592Y
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- CN
- China
- Prior art keywords
- square shaft
- conversion
- changing
- breach
- disk
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model relates to an isolating changing-over switch, which improves the operating mechanism of the existing isolating changing-over switch. A changing-over square shaft is provided with a right angle type arm of a square shaft; a mechanism square shaft is provided with a changing-over disk; the changing-over disk is provided with a pinch roller which is matched with the arm of a square shaft; the edge of the changing-over disk is processed with a spacing notch and a disengaging notch; a locking shaft with a half shaft notch is installed between the bottom board of the operating mechanism and a panel. The utility model has advantages that a movable contact is forced to press on a static contact under the action of the changing-over disk and the pinch roller, when the isolating changing-over switch is closed; therefore, the movable contact is well contacted with the static contact; when the isolating changing-over switch is switched off, switching-off speed is high, switching-off capacity is large, the locking shaft lock catch is reliable, and malfunction can not occur.
Description
The utility model belongs to a kind of switch, particularly a kind of isolation conversion switch that is used for isolating between contactor and the power supply commutation.
Isolation conversion switch of the prior art mainly is made up of insulating base, insulating lid, moving contact, fixed contact, arc-chute and operating mechanism etc.Moving contact and fixed contact have two groups, are installed in respectively in the insulating base, and operating mechanism is dynamic and static contact closure of control or disengagement, the device of realizing isolating commutation.Show that as Fig. 4, Fig. 5 it is mainly by base plate 32, panel 41, mechanism's square shaft 33, fan-shaped shift fork 34, saddle frame 36, and two cover transition arm 38, swing arm 37, yoke plate 39, square shaft arm 40, conversion square shaft 42 and the energy storage spring 35 of symmetric arrangement are formed.Conversion square shaft 42 extend at insulation the end, be fixed together with moving contact, when the 33 forward and reverse rotations of trip gear square shaft, fan-shaped shift fork 34 rotates thereupon, and the conversion arm axle enters in the breach of fan-shaped shift fork 34, drives transition arm 38 swings, after transition arm 38 turns over certain angle, energy storage spring 35 makes swing arm 37 and yoke plate 39 swings, rotates thereby drive square shaft arm 40, and the moving contact and the fixed contact of isolation conversion switch one side are joined; Meanwhile, the moving contact of isolation conversion switch opposite side is then thrown off with fixed contact under the effect of opposite side transition arm 38, energy storage spring 35, yoke plate 39 and swing arm 37.This operating mechanism is because its translated zero parts are more, thereby the structure more complicated, and is also higher to the machining accuracy and the assembling quality requirement of parts; Dumb, the problem not in place of closing a floodgate of swing arm 37 actions in use also usually occurs, and the breaking speed of this operating mechanism is low, the disjunction lead can not change, and is difficult to adapt to various situations.
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art part, provide a kind of simple in structure, breaking speed is fast, breaking capacity is big, flexible movements, reliable isolation conversion switch.
The utility model is the improvement design of existing isolation conversion switch, promptly on the basis of existing isolation conversion switch, operating mechanism is improved, the square shaft arm that a square is installed respectively on two conversion square shafts of moving contact is being housed, and the leading section of square shaft arm is connected with energy storage spring; The conversion disk is installed on mechanism's square shaft, the pinch roller that matches with the square shaft arm is installed respectively on two sides of conversion disk; Be processed with spacing breach on the edge of conversion disk, spacing breach matches with positioner on being installed in base plate, to limit the rotational angle of changing disk, is processed with the disengagement breach respectively in the both sides of spacing breach; Between the base plate of operating mechanism and panel, lock shaft is installed, the semiaxis pin that locking spring is installed on the lock shaft and matches with the disengagement breach of conversion on the disk, be processed with the semiaxis breach that matches with square shaft arm upper end on lock shaft, the upper end of square shaft arm can be passed through in the semiaxis breach; On base plate and panel, be separately installed with spacer pin, to limit the position that the square shaft arm rotates.
The utility model compared with prior art has following advantage:
1, adopting conversion disk and pinch roller to promote the square shaft arm rotates, make moving contact be pressed together on the fixed contact by force, dynamic and static contact contact is good during combined floodgate, and keep certain pressure, both overcome the problem not in place of closing a floodgate, and also made energy storage spring reach optimum state, when disjunction, moving contact and fixed contact are thrown off rapidly, and breaking speed is fast.
2, lock and be processed with the semiaxis breach on the axle, when the upper end of square shaft arm is passed through from the semiaxis breach, moving contact is with after fixed contact contacts, lock shaft can rotate under the effect of locking spring, thereby the square shaft arm is latched in closing position, it can not be thrown off, misoperation can not take place.
3, be processed with disengagement breach and spacing breach on the conversion disk, change the position of throwing off breach, can change the lead of disjunction; Change spacing breach angle, can change the combined floodgate orientation angle, satisfy the needs of various situations.
Provide embodiment of the present utility model below in conjunction with accompanying drawing:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A cutaway view of the utility model Fig. 1;
Fig. 3 is the utility model Fig. 1 right view;
The structural representation of the existing isolation conversion switch operating mechanism of Fig. 4;
Fig. 5 is the left view of Fig. 4.
As Fig. 1, Fig. 2 and shown in Figure 3, the utility model has an insulating base 19, at insulating base 19 and middle part fixed contact copper bar 17 is installed, be separately installed with two groups of fixed contacts 18 and 20 in the both sides of fixed contact copper bar 17, be separately installed with conversion square shaft 4 and 23 in the both sides of fixed contact 18 and 20, be separately installed with one group of moving contact 26 and 21 on conversion square shaft 4 and 23, moving contact 26 is connected with commutation copper bar 25, and moving contact 21 is connected with commutation copper bar 24; In moving contact 26 and 21 and be separately installed with an arc-chute 22 above fixed contact 18 and 20, the electric arc that produces when eliminating separating brake; In the both sides of insulating base 19 insulating lid 1 is installed, in the front of insulating base 19 operating mechanism is installed, described operating mechanism has a base plate 3 that is contained on the insulating base 19, and four back shafts 2 are installed on base plate 3, and panel 10 is installed on back shaft 2; Described conversion square shaft 4 is slightly longer than conversion square shaft 23, its axle head extend in the operating mechanism from insulating base 19 respectively, on the axle head of conversion square shaft 4 and 23, be separately installed with the square shaft arm 31 and 6 of a square, square shaft arm 31 is connected with 27 with energy storage spring 11 with 6 leading section, and the energy storage spring 11 and 27 the other end are fixed on the back shaft 2; Center at base plate 3 and panel 10 is equipped with mechanism's square shaft 13, conversion disk 8 is installed on mechanism's square shaft 13, on two sides of conversion disk 8, be separately installed with the pinch roller 14 and 12 that matches with square shaft arm 31 and 6, top at conversion disk 8 edges is processed with spacing breach 8b, in spacing breach 8b, also be processed with three circular arc cutaway 8a, spacing breach 8b matches with positioner 9 on being installed in base plate 3, to limit the rotational angle of conversion disk 8, be processed with respectively in the both sides of spacing breach 8b and throw off breach 8c and 8d; Two lock shafts 7 and 29 that match with square shaft arm 31 and 6 are installed between base plate 3 and panel 10, be equipped with on lock shaft 7 and 29 locking spring 5 and with disengagement breach 8d and the 8c semiaxis pin 15 and 28 that match of conversion on the disk, semiaxis pin 15 and 28 can make lock shaft 7 and 29 rotate under the effect of throwing off breach 8d and 8c, can under the effect of locking spring 5, rotate and reset and lock axle 7 and 29, also be processed with semiaxis breach 7a and the 29a that matches with square shaft arm 31 and 6 upper ends on 7 and 29 locking axle, square shaft arm 31 and 6 upper end can be passed through from semiaxis breach 7a and 29a; On the base plate 3 in the square shaft arm 31 and 6 outsides and panel 10, be separately installed with spacer pin 16 and 30, to limit the position of square shaft arm 31 and 6.
When the straight pin of positioner 9 is positioned at the circular arc cutaway 8a of spacing breach 8b centre, two groups of moving contacts 26 in the insulating base 19 and 21 and two groups of fixed contacts 18 and 20 all are in disengaged condition, at this moment, semiaxis pin 15 and 28 is supported on the edge of conversion disk 8, and semiaxis breach 7a and 29a on the lock shaft 7 and 29 are horizontal; When trip gear square shaft 13 rotates counterclockwise, conversion disk 8 rotates thereupon, the pinch roller 14 of conversion disk 8 one sides is pressed on the square shaft arm 31, square shaft arm 31 is rotated thereupon, and drive 4 rotations of conversion square shaft, after the upper end of square shaft arm 31 is passed through from the semiaxis breach 7a of lock shaft 7, semiaxis pin 15 just in time is positioned at the disengagement breach 8d of conversion disk 8, lock shaft 7 rotates under the effect of locking spring 5 and resets, and square shaft arm 31 snap closes are fixed, and the moving contact 26 of this side is pressed on the fixed contact 18; Meanwhile, 6 on square shaft arm rotates rapidly under the effect of energy storage spring 27, abuts against on the spacer pin 30; When needs commutate, trip gear square shaft 13 clockwise rotates, then lock shaft 7 rotates under the effect of throwing off breach 8d, semiaxis breach 7a is horizontal, square shaft arm 31 is decontroled in 14 rotations with conversion disk 8 of pinch roller, square shaft arm 31 rotates under the effect of energy storage spring 11, and then deviate from from semiaxis breach 7a the upper end of square shaft arm 31, drives moving contact 26 and throws off rapidly with fixed contact 18.
Claims (2)
1, a kind of isolation conversion switch is made up of insulating lid (1), insulating base (19), arc-chute (22), moving contact (21) and (26), fixed contact (18) and (20) and operating mechanism; Described operating mechanism has two the conversion square shaft (4) and (23) that extend in the insulating base (19), and conversion square shaft (4) is connected with (21) with moving contact (26) respectively with (23); Between the base plate (3) of operating mechanism and panel (10), mechanism's square shaft (13) is installed, it is characterized in that, be separately installed with square shaft arm (31) and (6) on conversion square shaft (4) and (23), the leading section of square shaft arm (31) and (6) is connected with (27) with energy storage spring (11); Conversion disk (8) is installed on mechanism's square shaft (13), on two sides of conversion disk (8), is separately installed with pinch roller (14) and (12) of matching with square shaft arm (31) and (6); On the edge of conversion disk (8), be processed with spacing breach (8b), spacing breach (8b) matches with positioner (9) on being installed in base plate (3), to limit the rotational angle of conversion disk (8), be processed with respectively in the both sides of spacing breach (8b) and throw off breach (8c) and (8d); Between the base plate (3) of operating mechanism and panel (10), lock shaft (7) and (29) are installed, be equipped with on lock shaft (7) and (29) locking spring (5) and with the disengagement breach (8d) of conversion on the disk, semiaxis pin (15) and (28) that (8c) matches, on lock shaft (7) and (29), be processed with the semiaxis breach (7a), (29a) that match with the upper end of square shaft arm (31), (6); On base plate (3) and panel (10), be separately installed with the spacer pin (16) and (30) that limit square shaft arm (31), (6) turned position.
2, isolation conversion switch according to claim 1 is characterized in that, also is processed with three circular arc cutaway (8a) in spacing breach (8b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93227933 CN2157592Y (en) | 1993-04-18 | 1993-04-18 | Isolating changing-over switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93227933 CN2157592Y (en) | 1993-04-18 | 1993-04-18 | Isolating changing-over switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2157592Y true CN2157592Y (en) | 1994-02-23 |
Family
ID=33805091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93227933 Expired - Fee Related CN2157592Y (en) | 1993-04-18 | 1993-04-18 | Isolating changing-over switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2157592Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280383A (en) * | 2013-06-03 | 2013-09-04 | 江苏辉能电气有限公司 | Reclosing mechanism of residual-current circuit breaker |
-
1993
- 1993-04-18 CN CN 93227933 patent/CN2157592Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280383A (en) * | 2013-06-03 | 2013-09-04 | 江苏辉能电气有限公司 | Reclosing mechanism of residual-current circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |