CN101459009B - Switch device for fast disconnecting closed load isolating switch - Google Patents
Switch device for fast disconnecting closed load isolating switch Download PDFInfo
- Publication number
- CN101459009B CN101459009B CN 200710195757 CN200710195757A CN101459009B CN 101459009 B CN101459009 B CN 101459009B CN 200710195757 CN200710195757 CN 200710195757 CN 200710195757 A CN200710195757 A CN 200710195757A CN 101459009 B CN101459009 B CN 101459009B
- Authority
- CN
- China
- Prior art keywords
- handle
- rotating shaft
- hole
- square column
- torsion spring
- 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.)
- Active
Links
Images
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention relates to a switch operating device, in particular to a switch capable of fast switching on and switching off an on-load disconnector and increasing the operational reliability for switching on and switching off the on-load disconnector. The switch capable of fast switching on and switching off an on-load disconnector comprises a handle, a torsion spring and a locator, wherein on an axis Z1, centers of a hole of the locator, the pitch diameter of the torsion spring and a square hole of the locator coincide with a center of a square column above a rotating shaft, the square hole of the locator is sleeved around the square column of the rotating shaft, four faces of the square hole of the locator are attached with four faces of the square column of the rotating shaft, the torsion spring is sleeve on the square column of the rotating shaft, one end of the torsion spring is inserted into the hole of the locator, the hole of the handle is sleeved around the square column of the rotating shaft, one end of the torsion spring with increased torsional deformation angle is inserted into the hole of the handle, and a first group of four faces of the hole of the handle is attached with the four faces of the square column of the rotating shaft. After the on-load disconnector is switched off, the movable contact and the static contact of the on-load disconnector can reach the reliable contact status according to predefined requirements.
Description
Technical field
The present invention relates to a kind of switch operation device, particularly a kind of switching device for the fast disconnecting closed load isolating switch for improving load-break switch closed procedure reliability.
Background technology
Load-break switch is typically used as in the power circuit facility of building and electric distribution system, is infrequently connected under normal circumstances or disjunction circuit, and reliably isolate deenergizing circuit with power supply after load-break switch disjunction circuit.
A kind of existing load-break switch G is as shown in Figure 1, the center of square hole 11 ' of load-break switch handle 1 is with the center superposition of square column 21 in rotating shaft 2 on axial line Z1, square hole 11 ' in handle 1 is enclosed on the square column 21 of rotating shaft 2, fitted with 4 faces of square column 21 in rotating shaft 2 in 4 faces of the square hole 11 ' in handle 1, so that when being rotated around axial line Z1 operation handles 1, axle 2 is synchronous to be rotated.The bottom surface (not shown) of handle square hole 11 ' is fitted with the end face 27 of rotating shaft square column 21, fastener screw (not shown) is fastenedly connected by handle hole 13 with the Luo lines of rotating shaft 26, and the spring washer and packing ring (not shown) end face on fastener press handle hole end surface 12.
Shown in Fig. 2, the angle that handle 1 rotates around Z1 is controlled by 23 and 24 2 faces on countershaft 2 spacing (spacing block piece is not drawn into) respectively on two diverse locations.Rotating shaft 2 around Z1 rotate when, the face of cylinder 25 in rotating shaft 2 is adjacent to the face 41 or 42 on sliding block 4, promotes sliding block 4 to do reciprocal linear slide, the synchronous slide of mounting bracket 5 is driven by sliding block 4.Moving contact 7,7` and stage clip 6,6` are attached separately on mounting bracket 5 in vestibule (not shown).One end 31 of torsion spring 3 is inserted in shaft hole 22, and the other end 32 is inserted in the hole (not shown) centered on Z2.
Fig. 3 is that the static contact 8 of load-break switch, 8` and moving contact 7,7` are in the inactive state separated.Axle 2 is synchronous when rotating clockwise handle 1 is rotated, and the face of cylinder 25 is separated with the plane 42 on sliding block 4 on axle 2, and axis hole 22 and Z2 distance reduces, and moment of torsion increases the increase of the torsional deflection angle of torsion spring 3 therewith.
When handle 1 rotates to 31 ends, 32 ends and Z1 of position shown in Fig. 4, i.e. torsion spring 3 on same straight line A, the distance at the end of torsion spring 31 and 32 ends is minimum, and its moment of torsion of torsional deflection angle most ambassador is maximum, while 41 planes that the face of cylinder 25 is pressed close on sliding block 4 on axle 2.Continue to rotate clockwise handle 1, when straight line A is left at the end of torsion spring 31, torsion spring 3 discharges gathered elastic potential energy.
Shown in Fig. 5, when torsion spring 3 discharges gathered elastic potential energy, rotate clockwise rotating shaft 2 under the end of torsion spring 31 driving in shaft hole 22, the face 41 on sliding block 4 is close on the face of cylinder 25 in rotating shaft 2, promote sliding block 4 to do linear slide, the synchronous slide of mounting bracket 5 is driven by sliding block 4.Until the plane 23 on axle 2 is limited, block piece (not shown) is spacing, and axle 2 stops operating.Now the moving contact 7 and 7` (not shown)s of load-break switch reach with static contact 8,8` meets the predetermined state for contacting requirement.
The process of this load-break switch closed procedure described in Fig. 3, Fig. 4 and Fig. 5, and during actual closed procedure is carried out to load-break switch, state as shown in Figure 6 often occurs, moving contact 7 and 7` (not shown)s are not up to pre-provisioning request with static contact 8,8` contact position in inactive state, the load-break switch run in this state does not allow to be used, otherwise occurring serious adverse consequences -- contact resistance increases, contact is overheated and damage, it is impossible to reliably connect circuit；Short-circuit capacity reduction is carried under rated condition, thus causes moving contact and static contact melting welding and causes load-break switch to be unable to disjunction isolation circuit
Moving contact 7 shown in Fig. 6 and 7` (not shown)s and static contact 8, 8` contact position is not up to the state of pre-provisioning request, it is due to load-break switch in closed procedure, holding handle 1 of stopping was rotated clockwise behind position shown in Fig. 4 around Z1, torsion spring 3 discharges rapidly gathered elastic potential energy, the speed for rotating clockwise rotating shaft 2 under the end of torsion spring 31 driving in shaft hole 22, which is far longer than, holds the speed that handle 1 of stopping is rotated clockwise, now hand is rotated further handle 1 or departs from the handle 1 being held not in time, before handle 1 rotates to position shown in Fig. 6, the impact energy of torsion spring 3 rapidly produced by the elastic potential energy of release accumulation, reduce because being consumed by the stop for the handle 1 being held by hand, the hand of handle 1 is held after the effect by same direction force simultaneously, subconsciousness stops applying the power for acting on and rotating clockwise handle 1.Because the torsional deflection angle in position torsion spring shown in Fig. 6 is smaller, its torsional moment can not overcome as stage clip 6 and 6` (not shown)s to moving contact 7 produced by moving contact 7 and the pressure of 7` (not shown)s and 7` (not shown)s and the friction of static contact 8,8` so that moving contact 7 and 7` (not shown)s are still in state shown in Fig. 6 with static contact 8,8` contact position.Because existing this load-break switch G is limited by its structure, during actual closed procedure is carried out to load-break switch, it may appear that the problem of contact position of moving contact and static contact is not up to pre-provisioning request in inactive state.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of switching device of fast disconnecting closed load isolating switch, this load-break switch its moving contact after closed procedure is reached the reliable contacts state of pre-provisioning request with static contact.
In order to solve the above technical problems, the present invention is realized as follows：The switching device of fast disconnecting closed load isolating switch of the present invention is made up of handle, torsion spring and keeper.Square column center superposition is on axial line Z1 in the hole center of handle, torsion spring central diameter center, the square hole center of keeper and rotating shaft；Keeper square hole is enclosed on rotating shaft square column, and 4 faces of keeper square hole are fitted with 4 faces of rotating shaft square column；Torsion spring set is on rotating shaft square column, in one end insertion keeper hole；Borehole jack on handle is on rotating shaft square column, and torsion spring increase torsional deflection inserts one end in handle hole behind angle, first group of 4 plane on handle hole is fitted with 4 faces of rotating shaft square column.When rotating clockwise handle, 4 planes in handle hole leave 4 faces on rotating shaft square column, rotating shaft remains stationary.After second group of 4 plane in rotatable handle to handle hole are fitted with 4 faces on rotating shaft square column, rotating shaft and handle synchronous axial system.When rotatable handle is close to 90 degree of positions, make the A ends of torsion spring, the B ends of torsion spring and axial line Z1 on same straight line A.
The handle, is more than the length in rotating shaft on square column diagonal between appearance profile using hole center as the diameter on the face of cylinder in the center of circle.
Borehole jack on the handle is on rotating shaft square column, and the end face of handle hole is slightly below rotating shaft square column end face.
When the fastener screw (not shown) is fastenedly connected with Luo lines in rotating shaft, spring washer and packing ring (not shown) end face on fastener press after rotating shaft end face, and handle has a gap between packing ring and keeper.
The positive effect of the present invention：The switching device of fast disconnecting closed load isolating switch of the present invention is a kind of switching device for the fast disconnecting closed load isolating switch for improving load-break switch closed procedure reliability.This load-break switch is after closed procedure, and its moving contact can reach the reliable contacts state of pre-provisioning request with static contact.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is a kind of existing load-break switch diagram；
Fig. 2 is the sectional view of primary structure inside this load-break switch；
Fig. 3 is views of the Fig. 2 in open position；
Fig. 4 is the view of Fig. 2 position during closed procedure；
Fig. 5 is views of the Fig. 2 in closing position；
Fig. 6 is that Fig. 2 closes view not in place
Fig. 7 is that the present invention is used for the diagram of this load-break switch；
Fig. 8 is views of the Fig. 7 in open position；
Fig. 9 is the view of Fig. 7 position during closed procedure；
Figure 10 is the view of Fig. 7 another position during closed procedure；
Figure 11 is views of the Fig. 7 in closing position.
In figure, 1G handle 2G rotating shaft 3G torsion springs
4G sliding block 5G mounting bracket 6G stage clips
The G moving contacts of 6 ' G stage clip 7G moving contacts 7 '
The handle of 8 ' G static contacts of 8G static contacts 9
The rotating shaft square column of 10 torsion spring, 11 keeper 21
The A ends of the torsion spring of 26 Luo lines, 27 rotating shaft end face 31
The handle hole of B ends 91 of 32 torsion springs
92 first group of handle holes equal 92 ' handle hole, first group of plane
92 " first group of plane 92 of handle holeFirst group of plane of handle hole
93 second group of handle hole, second group of the handle hole of plane 93 ' planes
93 " second group of plane 93 of handle hole
Second group of plane of handle hole
94 face of cylinder using the center of handle hole 91 as the center of circle
94 ' the face of cylinder using the center of handle hole 91 as the center of circle
94 " using the center of handle hole 91 as the face of cylinder in the center of circle
94
Using the center of handle hole 91 as the face of cylinder in the center of circle
The one end of end face 101 of the handle hole 91 of 95 handle hole 96
The keeper hole of 102 one end, 111 keeper square hole 112
Embodiment
As shown in fig. 7, the switching device for stating fast disconnecting closed load isolating switch is made up of handle 9, torsion spring 10 and keeper 11.The center superposition of square column 21 is on axial line Z1 in the centers of 9 Kong of handle 91, the central diameter center of torsion spring 10, the center of square hole 111 of keeper 11 and rotating shaft 2；Keeper square hole 111 is enclosed on rotating shaft square column 21, and 4 faces of keeper square hole 111 are fitted with 4 faces of rotating shaft square column 21；Torsion spring 10 is enclosed on rotating shaft square column 21, in the insertion keeper of one end 101 hole 112；Hole 91 on handle 9 is enclosed on rotating shaft square column 21, and the increase torsional deflection of torsion spring 10 inserts one end 102 in the hole of handle 95 behind angle, makes first group 4 flat 92,92 ', 92 on handle hole 91 " and 92
Fitted with 4 faces of rotating shaft square column 21.When rotating clockwise handle 9,4 planes 92,92 ', 92 in handle hole 91 " and 92
Leave 4 faces on rotating shaft square column 21, the remains stationary of rotating shaft 2.Second group of 4 plane 93,93 ', 93 rotated to when handle 9 in handle hole 91 are " with 93
After being fitted with 4 faces on rotating shaft square column 21, rotating shaft 2 and the synchronous axial system of handle 9.When handle 9 is rotated close to 90 degree of positions, make the A ends 31, the B ends 32 of torsion spring and axial line Z1 of torsion spring on same straight line A.
Load-break switch is before closed procedure is done, and first group of 4 plane in handle hole 91 are fitted with 4 faces of square column in rotating shaft 21.Operation handle 9 starts to turn clockwise, and makes first group of 4 plane 92,92 ', 92 in handle hole 91 " and 92Leave second group of 4 plane 93,93 ', 93 in 4 faces of square column in rotating shaft, one angle defensive position delthyrium 91 of rotation " and 93
Fitted with 4 faces of square column in rotating shaft, as handle 9 rotates its second group of 4 plane 93,93 ', 93 " and 93
Drive the synchronous rotary of rotating shaft 2, rotating shaft drives the one end of torsion spring 3 to increase the torsional deflection of torsion spring 3, when handle 9 is rotated close to 90 degree, make the torsional deflection angle of energy storage torsion spring 3 maximum and the critical point of elastic potential energy is gathered in release, continue rotary handle 9, torsion spring 3 starts the gathered elastic potential energy drive shaft of release and quickly rotated clockwise, and second group of 4 plane 93,93 ', 93 in handle are left in 4 faces of square column 21 in rotating shaft " and 93
, the now rotation of handle 9 is because inertia is more than 90 degree, and rotating shaft 2 is limited when rotating to 90 degree and stopped operating.First group of 4 plane 92,92 ', 92 so in handle 9 " and 92
4 faces prior to square column in rotating shaft 21 are rotated by 90 °, when rotating shaft is discharged gathered elastic potential energy 2 quick rotation of drive shaft by torsion spring 3, the impact energy consumed by the stop of handle is avoided, load-break switch its moving contact 7 and 7` after closed procedure is reached the reliable contacts state for meeting pre-provisioning request with static contact 8,8`.One keeper 11,4 faces in 4 faces of square hole and square column in above-mentioned rotating shaft at its center are fitted, and make keeper 11 and the synchronous axial system of rotating shaft 2.One back-moving spring, its one end is fixed on the other end on above-mentioned handle 9 and is fixed on above-mentioned keeper 11 so that the handle 9 is when no external force is acted on, first group of 4 face 92,92 ', 92 in handle hole 91 " and 92
Keep fitting with 4 faces of square column in rotating shaft.
The handle 9, the centers of Yi Kong 91 are the face of cylinder 94,94 ', 94 in the center of circle " and 94
Diameter be more than length in rotating shaft 2 on the diagonal of square column 21 between appearance profile.
When the fastener screw (not shown) is fastenedly connected with Luo lines 26 in rotating shaft 2, spring washer and packing ring (not shown) end face on fastener press after the end face 27 of rotating shaft 2, and handle 9 has a gap between packing ring and keeper 11.
The example of the present invention is provided below in conjunction with the accompanying drawings.
Fig. 8 is that the static contact 8 of load-break switch, 8` and moving contact 7,7` are in the inactive state separated.When rotating clockwise handle 9,4 planes 92,92 ', 92 in the (not shown) of handle hole 91 " and 92
Leave 4 faces on rotating shaft square column 21, the remains stationary of rotating shaft 2.When handle 9 rotates to position shown in Fig. 9, second group of 4 plane 93,93 ', 93 in handle hole " and 93
Fitted with 4 faces on rotating shaft square column 21, rotating shaft afterwards 2 and the synchronous axial system of handle 9, the face of cylinder 25 is separated with the plane 42 on sliding block 4 on axle 2, and the (not shown) of axis hole 22 and Z2 distance reduce, the torsional deflection angle of torsion spring 3 increase moment of torsion increase therewith.
When handle 9 is rotated close to 90 degree of positions as shown in Figure 10, make 31 ends, 32 end (not shown)s and the Z1 of torsion spring 3 on same straight line A, the distance at the end of torsion spring 31 and 32 ends is minimum, and its moment of torsion of torsional deflection angle most ambassador is maximum, while 41 planes that the face of cylinder 25 is pressed close on sliding block 4 in rotating shaft 2.Continue to rotate clockwise handle 9, when straight line A is left at the end of torsion spring 31, torsion spring 3 discharges gathered elastic potential energy.
Continue to rotate clockwise handle 9 as described above, when straight line A is left at the end of torsion spring 31, the anglec of rotation of handle 9 due to effect of inertia more than 90 degree as shown in figure 11.First group of 4 plane 92,92 ', 92 so in handle 9 " and 92
4 faces prior to square column in rotating shaft 21 are rotated by 90 °, when rotating shaft 2 is discharged gathered elastic potential energy drive shaft quick rotation by torsion spring 3, avoid the impact energy consumed by the stop of handle, when torsion spring 3 discharges gathered elasticity energy, rotating shaft 2 is rotated clockwise under the end of torsion spring 31 driving in shaft hole 22, the face 41 on sliding block 4 is close on the face of cylinder 25 in rotating shaft 2, promotes sliding block 4 to do linear slide, the synchronous slide of mounting bracket 5 is driven by sliding block 4.Until plane 23 of the rotating shaft 2 when rotating to 90 degree in rotating shaft is limited, block piece (not shown) is spacing, and rotating shaft 2 stops operating.Now the moving contact 7 and 7` (not shown)s of load-break switch reach the reliable contacts state of pre-provisioning request with static contact 8,8`.
After state shown in Figure 11, under the effect of the (not shown) of torsion spring 10, make the rotate counterclockwise of handle 9, until first group of 4 plane 92,92 ', 92 on handle " and 92
Fitted with 4 faces of rotating shaft square column 21.
Claims (4)
1. a kind of switching device of fast disconnecting closed load isolating switch, it is characterised in that：It is made up of handle (9), the first torsion spring (10) and keeper (11)；Square column (21) center superposition is on axial line Z1 in the center in the first hole (91) of handle (9), the first torsion spring (10) central diameter center, the center of the square hole (111) of keeper (11) and rotating shaft (2)；Keeper square hole (111) is enclosed on rotating shaft square column (21), and 4 faces of keeper square hole (111) are fitted with 4 faces of rotating shaft square column (21)；First torsion spring (10) is enclosed on rotating shaft square column (21), in first end (101) insertion keeper hole (112) of the first torsion spring；The first hole (91) on handle (9) is enclosed on rotating shaft square column (21), upper first group of i.e. first plane of 4 planes (92) in the first hole (91) on handle, the second plane (92 '), the 3rd plane (92 ") and fourth plane (92 " ') in the second hole (95) on the second end (102) insertion handle of first torsion spring (10), will be made to be fitted with 4 faces of rotating shaft square column (21) behind first torsion spring (10) increase torsional deflection angle；When rotating clockwise handle (9), 4 planes of plane first (92), the second plane (92 '), the 3rd plane (92 ") and fourth plane (92 " ') in the first hole (91) on handle leave 4 faces on rotating shaft square column (21), rotating shaft (2) remains stationary；Handle (9) is rotated to after second group of 4 plane i.e. the 5th plane (93) in the first hole (91) on handle, the 6th plane (93 '), the 7th plane (93 ") and the 8th plane (93 " ') fit with 4 faces on rotating shaft square column (21), rotating shaft (2) and handle (9) synchronous axial system；When handle (9) rotation is close to 90 degree of positions, make the A ends (31), the B ends (32) of the second torsion spring and axial line Z 1 of the second torsion spring (3) on same straight line A.
2. the switching device of fast disconnecting closed load isolating switch according to claim 1, it is characterised in that：The handle (9), the diameter using the first hole (91) center on handle as first face of cylinder (94) in the center of circle, second face of cylinder (94 '), the 3rd face of cylinder (94 ") and the 4th face of cylinder (94 " ') is more than length on rotating shaft square column (21) diagonal between appearance profile.
3. the switching device of fast disconnecting closed load isolating switch according to claim 1, it is characterised in that：The first hole (91) on the handle (9) is solidly set on rotating shaft square column (21) by fastener screw, and the end face (96) in the first hole (91) on handle is less than the end face of rotating shaft square column (21).
4. the switching device of fast disconnecting closed load isolating switch according to claim 3, it is characterised in that：When the fastener is fastenedly connected, spring washer and washer face on fastener press after the end face (27) of rotating shaft (2), and handle (9) has a gap between packing ring and keeper (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710195757 CN101459009B (en) | 2007-12-14 | 2007-12-14 | Switch device for fast disconnecting closed load isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710195757 CN101459009B (en) | 2007-12-14 | 2007-12-14 | Switch device for fast disconnecting closed load isolating switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101459009A CN101459009A (en) | 2009-06-17 |
| CN101459009B true CN101459009B (en) | 2012-12-19 |
Family
ID=40769787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710195757 Active CN101459009B (en) | 2007-12-14 | 2007-12-14 | Switch device for fast disconnecting closed load isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101459009B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976623A (en) * | 2010-09-30 | 2011-02-16 | 施耐德万高（天津）电气设备有限公司 | Disconnecting switch fuse block with wiring terminal protection sleeves |
| EP3273460B1 (en) | 2016-07-22 | 2019-06-19 | Siemens Aktiengesellschaft | Electronic switching device |
| CN109671578B (en) * | 2018-12-26 | 2020-08-21 | 江苏苏爱尔电力设备有限公司 | Electric power maintenance isolating device for high-voltage line load turntable slot line pipe shear |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1170372A (en) * | 1967-05-17 | 1969-11-12 | Square D Co | Circuit Breaker Enclosure with External Operating Handle and Combination thereof with Circuit Breaker |
| US3911235A (en) * | 1974-04-29 | 1975-10-07 | Square D Co | Flange mounted operator for an enclosed electric circuit breaker |
| EP0564173A1 (en) * | 1992-03-30 | 1993-10-06 | Eaton Corporation | Lockable remote rotary handle operator for circuit breakers |
| CN2355417Y (en) * | 1999-04-01 | 1999-12-22 | 白竞 | Load switch |
| CN2355418Y (en) * | 1999-04-01 | 1999-12-22 | 白竞 | Load isolating switch |
-
2007
- 2007-12-14 CN CN 200710195757 patent/CN101459009B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1170372A (en) * | 1967-05-17 | 1969-11-12 | Square D Co | Circuit Breaker Enclosure with External Operating Handle and Combination thereof with Circuit Breaker |
| US3911235A (en) * | 1974-04-29 | 1975-10-07 | Square D Co | Flange mounted operator for an enclosed electric circuit breaker |
| EP0564173A1 (en) * | 1992-03-30 | 1993-10-06 | Eaton Corporation | Lockable remote rotary handle operator for circuit breakers |
| CN2355417Y (en) * | 1999-04-01 | 1999-12-22 | 白竞 | Load switch |
| CN2355418Y (en) * | 1999-04-01 | 1999-12-22 | 白竞 | Load isolating switch |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平7-141964A 1995.06.02 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101459009A (en) | 2009-06-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101562100B (en) | A spring discharge mechanism for circuit breaker | |
| CN101459009B (en) | Switch device for fast disconnecting closed load isolating switch | |
| CN102262983B (en) | Rotating contact terminal component | |
| CN203026469U (en) | Moving contact component of moulded case circuit breaker | |
| CN103441012B (en) | Dustproof switch positioner | |
| CN102103948A (en) | Moving contact assembly of molded case circuit breaker | |
| EP2768005B1 (en) | Rotation double-breakpoint movable contact module | |
| CN105696536A (en) | Torque transmission protection device | |
| CN207529893U (en) | A kind of circuit breaker operation mechanism | |
| CN202423109U (en) | Connecting and driving device for vacuum circuit breaker | |
| CN114110049B (en) | Braking device of high-voltage switch mechanism | |
| CN201869011U (en) | Mechanical protection device for motor transmission shaft of electric mechanism | |
| CN209981011U (en) | Knife switch | |
| CN101685731B (en) | Lockable contact component of low-voltage circuit breaker | |
| CN103700522B (en) | A kind of spring operating mechanism for generator circuit breaker | |
| KR20130094779A (en) | Drive for a switch disconnector with c o switching capacity | |
| CN201845691U (en) | Grounding switch and switch cabinet provided with same | |
| CN110429012A (en) | A kind of rotary dropproof trigger device | |
| CN106128874B (en) | Breaker | |
| CN114068229B (en) | Three-station isolating switch integrated operating mechanism for breaker for switch cabinet | |
| CN207166008U (en) | A kind of high-tension switch cabinet crank | |
| CN102779663A (en) | Energy storage device for electric operating mechanism | |
| CN107749383A (en) | A kind of circuit breaker operation mechanism | |
| CN210182280U (en) | Knife switch | |
| US11842869B2 (en) | Reclosing switch capable of stably opening and closing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: WUXI SAHAT ELECTRICAL CO., LTD. Free format text: FORMER OWNER: WUXI XINHONGTAI ELECTRICAL APPARATUS CO., LTD. Effective date: 20120521 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20120521 Address after: 214174 Jiangsu Province, Wuxi city Huishan District Yanqiao new Yanqiao Road No. 18 Applicant after: Wuxi Sahat Electrical Co., Ltd. Address before: 214174 Jiangsu city of Wuxi province Yan Qiao Zhen Yan Xin Road No. 18 Wuxi xinhongtai electrical limited liability company Applicant before: Wuxi New Hongtai Electrical Products Co., Ltd. |
|
| DD01 | Delivery of document by public notice |
Addressee: Xiao Hua Document name: Notification of Passing Examination on Formalities |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |