CN102646526A - Vacuum circuit breaker and grounding switch interlocking mechanism - Google Patents
Vacuum circuit breaker and grounding switch interlocking mechanism Download PDFInfo
- Publication number
- CN102646526A CN102646526A CN2012101461646A CN201210146164A CN102646526A CN 102646526 A CN102646526 A CN 102646526A CN 2012101461646 A CN2012101461646 A CN 2012101461646A CN 201210146164 A CN201210146164 A CN 201210146164A CN 102646526 A CN102646526 A CN 102646526A
- Authority
- CN
- China
- Prior art keywords
- wedge block
- interlock plate
- plate wedge
- circuit breaker
- connecting plate
- 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.)
- Granted
Links
Images
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a vacuum circuit breaker and grounding switch interlocking mechanism which comprises a grounding switch operating mechanism and a circuit breaker interlocking plate, wherein the grounding switch operating mechanism is provided with a connecting plate, the interlocking mechanism is provided with a support plate, a connecting plate wedge-shaped slider is arranged on the connecting plate, an interlocking plate wedge-shaped slider is arranged on the support plate, the circuit breaker interlocking plate is in contact with a guide rod behind the interlocking plate wedge-shaped slider, movement directions of the connecting plat wedge-shaped slider and the interlocking plate wedge-shaped slider are mutually vertical, and the connecting plate wedge-shaped slider is in sliding connection with the interlocking plate wedge-shaped slider through a slope. By adopting the technical scheme, the standardization degree of the interlocking mechanism is improved, working principle and structure are simple; the vacuum circuit breaker and grounding switch interlocking mechanism has the advantages of being simple in part manufacture process, lowering production cost, shortening production period, being high in interlocking reliability, improving quality, being free of maintenance in a use process, and greatly increasing working efficiency.
Description
Technical field
The invention belongs to the technical field of power switchgear, relate to five anti-interlocking technologies of metal-clad moveable formula switchgear, more particularly, the present invention relates to a kind of vacuum circuit-breaker and earthed switch interlocking device.
Background technology
At present; The 40.5kV metal-clad moveable formula switchgear that domestic each power supply unit manufacturing firm produces (hereinafter to be referred as: switchgear), the design of interlocking device is multifarious between vacuum circuit-breaker wherein and the earthed switch, mechanism's complexity differs, the reliability of interlocking device unstable; The height of the reliability of " five the is anti-" interlocking in the switchgear is directly connected to the safe operation of switchgear, operating personnel's life security.
The main cause that causes the problems referred to above is the manufacturer of switchgear inner core components and parts 40.5kV handcart type vacuum circuit breaker numerous (like VD4-40.5, VEP-40.5, ZN85-40.5 etc.), and vacuum circuit-breaker " five is anti-" interlock method difference is big.
Enumerate the representative strong VD4 and the otherness of ZN85 vacuum circuit-breaker interlocking device:
1, the interlock plate position is different; 2, the flexible stroke L1 of interlock plate is different with L2, like Fig. 1 in this Figure of description, shown in Figure 2.
Each power supply unit manufacturing firm need carry out the specific aim design to interlocking device between every kind of vacuum circuit-breaker and the earthed switch, and will cause like this: 1, design work amount is big; 2, amount of parts is many; 3, Installation and Debugging are loaded down with trivial details; 4, batch process efficient is low.
Summary of the invention
The present invention provides a kind of vacuum circuit-breaker and earthed switch interlocking device, its objective is that the standardization level that improves switchgear interlocking device reaches the reliability of " five is anti-" interlocking.
To achieve these goals, the technical scheme taked of the present invention is:
Vacuum circuit-breaker provided by the present invention and earthed switch interlocking device; Comprise earthed switch operating mechanism and circuit breaker interlock plate; Described earthed switch operating mechanism is established connecting plate; Described interlocking device establishes supporting bracket, on described connecting plate, establishes the connecting plate wedge block, on described supporting bracket, establishes the interlock plate wedge block; Described circuit breaker interlock plate contacts with the guide rod of described interlock plate wedge block back; The direction of motion of described connecting plate wedge block and interlock plate wedge block is orthogonal; Described connecting plate wedge block and interlock plate wedge block are slidingly connected through the inclined-plane.
Establish back-moving spring on the described supporting bracket, described back-moving spring is enclosed within on the guide rod of described interlock plate wedge block back, and the action direction of its spring force is to make said interlock plate wedge block press to the connecting plate wedge block.
Each other motion of described circuit breaker interlock plate and described interlock plate wedge block, stressed on same straight line.
When described earthed switch is in gate-dividing state; Said connecting plate wedge block upwards slides into the extreme higher position; The horizontal slip under the effect of back-moving spring of said interlock plate wedge block makes the circuit breaker interlock plate return to reset condition, and can operate this moment to vacuum circuit-breaker;
When described earthed switch is in "on" position; Described connecting plate wedge block slides down to extreme lower position; The horizontal slip under the effect of connecting plate wedge block of said interlock plate wedge block; Make the circuit breaker interlock plate be compressed to Interlock Status, can not carry out any operation this moment to vacuum circuit-breaker; Otherwise when the vacuum circuit breaker was in test, gate-dividing state, the circuit breaker interlock plate can carry out freely stretching, but interlock plate wedge block level be free to slide, this moment can carry out breaking-closing operating to earthed switch;
When the vacuum circuit breaker is in the service position or leaves arbitrary position of test position; Said circuit breaker interlock plate works; Can not carry out freely stretching, said connecting plate wedge block is trapped in the extreme higher position under the effect of interlock plate wedge block, and can't operate this moment to said earthed switch.
The setting of the gradient on described inclined-plane makes normal pressure on the inclined-plane towards the component of the said interlock plate wedge block direction of motion, greater than the component on the said connecting plate wedge block direction of motion.
The present invention adopts technique scheme, has improved the standardization level of interlocking device, its operation principle and simple in structure; This mechanism's parts manufacture craft is simple, reduces production costs, and shortens the production cycle; The reliability of interlocking is high, has improved product quality; The product use is non-maintaining, increases work efficiency greatly.
Description of drawings
The mark of facing down among expressed content of each width of cloth accompanying drawing of this specification and the figure is made brief description:
Fig. 1 is VD4-40.5 a vacuum circuit-breaker interlocking device partial view;
Fig. 2 is ZN85-40.5 a vacuum circuit-breaker interlocking device partial view;
Fig. 3 applies to the interlocking sketch map between VD4 vacuum circuit-breaker and the earthed switch for the present invention;
Fig. 4 applies to the interlocking sketch map between ZN85 vacuum circuit-breaker and the earthed switch for the present invention;
Fig. 5 is motion of wedge block interlocking device and stress sketch map;
Fig. 6 is that C among Fig. 5 is to sketch map;
Fig. 7 is the stressed sketch map of wedge block;
Fig. 8 is the mathematical relationship sketch map between the flexible stroke L of θ angle and interlock plate among Fig. 7.
Be labeled as among the figure:
1, connecting plate wedge block, 2, the interlock plate wedge block, 3, back-moving spring, 4, connecting plate; 5, supporting bracket, 6, the earthed switch operating mechanism, 7, wedge block interlocking device; 8, circuit breaker interlock plate, 9, the switchgear body, 10, circuit breaker shakes into mechanism.
Embodiment
Contrast accompanying drawing below,, practical implementation side of the present invention is done further detailed explanation, inventive concept of the present invention, technical scheme are had more complete, accurate and deep understanding to help those skilled in the art through description to embodiment.
The of the present invention structure expressed like Fig. 3 to Fig. 6; Be a kind of vacuum circuit-breaker and earthed switch interlocking device; It is novel wedge block interlocking device 7 (like Fig. 3 and shown in Figure 4); Be used for the interlocking between handcart type vacuum circuit breaker and the earthed switch, belong to the technical field of 40.5kV armored metal withdraw-type switchgear " five is anti-" interlocking device.This interlocking comprises earthed switch operating mechanism 6 and circuit breaker interlock plate 8.Mainly solve the interlocking device variation between vacuum circuit-breaker and the earthed switch, complicated problem, can with the supporting use of 40.5kV vacuum circuit-breaker of most of manufacturer production.
In order to solve the problem that exists at the described present known technology of this specification background technology part and to overcome its defective; Realize improving the standardization level of switchgear interlocking device and the goal of the invention of the reliability that " five is anti-" interlocks, the technical scheme that the present invention takes is:
Extremely shown in Figure 6 like Fig. 3; On the earthed switch operating mechanism 6 of vacuum circuit-breaker provided by the present invention and earthed switch interlocking device, establish connecting plate 4; Described interlocking device establishes supporting bracket 5; On described connecting plate 4, establish connecting plate wedge block 1, on described supporting bracket 5, establish interlock plate wedge block 2; Described circuit breaker interlock plate 8 contacts with the guide rod of described interlock plate wedge block 2 back; Described connecting plate wedge block 1 is orthogonal with the direction of motion of interlock plate wedge block 2; Described connecting plate wedge block 1 and interlock plate wedge block 2 are slidingly connected through the inclined-plane.
The present invention is applied to the interlocking between VD4, ZN85 vacuum circuit-breaker and the earthed switch respectively:
According to the otherness of above-mentioned two kinds of circuit breaker interlocking devices, " wedge shape " slide block interlocking device is arranged in the corresponding appropriate location of switchgear (like Fig. 3, shown in Figure 4), promptly between earthed switch operating mechanism and the circuit breaker interlock plate; If earthed switch and distance different (the size A among Fig. 3 and Fig. 4 is not equal to B) between the circuit breaker interlock plate in the switchgear, the length that distance A between the two or B pass through adjusting connecting plate 4 gets final product.
The flexible stroke L1, the L2 that consider two kinds of circuit breaker interlock plates are different, only need fine setting slider tilt angle [alpha], β to get final product (in fact, α, β are θ and the complementary angle thereof among Fig. 7 and Fig. 8).This interlocking device directly is installed on needed position on the switchgear, and plug and play need not adjustment.The method can apply to other vacuum circuit-breaker.
The present invention has improved reliability, batch process efficient, the standardization level of 40.5kV armored metal withdraw-type switchgear and similar devices " five is anti-" interlocking device, reduces the design work amount, and further perfect " five is anti-" interlocking device technology.Its outstanding characteristics are: 1, standardization level is high; 2, operation principle and simple in structure; 3, this mechanism's parts manufacture craft is simple; 4, Interlock Reliability is high; 5, non-maintaining; 6, increase work efficiency greatly.
Establish back-moving spring 3 on the described supporting bracket 5, described back-moving spring 3 is enclosed within on the guide rod of described interlock plate wedge block 2 back, and the action direction of its spring force is to make said interlock plate wedge block 2 press to connecting plate wedge block 1.
Each other motion of described circuit breaker interlock plate 8 and described interlock plate wedge block 2, stressed on same straight line.
As shown in Figure 6: each other motion of the interlock plate wedge block 2 in circuit breaker interlock plate 8 and " wedge shape " slide block interlocking device 7, stressed on same straight line; Dotted line 1, dotted line 2 in receiving force direction and scheming overlap, and do not have the dislocation on the space between the two, can not produce torsional stress and bending stress; Only there is compression; Circuit breaker interlock plate 8 can not produce distortion with interlock plate wedge block 2 like this, and is stressed even, makes interlocking reliable, stable.
" wedge shape " of the present invention slide block interlocking device mentality of designing (with the VD4-40.5 vacuum circuit-breaker is example, and it is analyzed content and is equally applicable to other vacuum circuit-breakers such as ZN85):
1, operation principle:
Connecting plate 4 directly is connected with switchgear body 9 with supporting bracket 5, and connecting plate 4 is connected with connecting plate wedge block 1, can slide up and down;
Described circuit breaker interlock plate 8 is located at circuit breaker and shakes in the mechanism 10, and interlock plate wedge block 2 is installed on the supporting bracket 5, and interlock plate wedge block 2 can horizontally slip (as shown in Figure 5), realizes the interlock of the following stated:
When described earthed switch is in gate-dividing state; Said connecting plate wedge block 1 upwards slides into the extreme higher position; Said interlock plate wedge block 2 horizontal slip under the effect of back-moving spring 3 (like Fig. 5 and slip to the right shown in Figure 6); Make circuit breaker interlock plate 8 return to reset condition, can operate this moment to vacuum circuit-breaker;
When described earthed switch is in "on" position; Described connecting plate wedge block 1 slides down to extreme lower position; Said interlock plate wedge block 2 horizontal slip under the effect of connecting plate wedge block 1 (like Fig. 5 and slip left shown in Figure 6); Make circuit breaker interlock plate 8 be compressed to Interlock Status, can not carry out any operation this moment to vacuum circuit-breaker; Otherwise when the vacuum circuit breaker was in test, gate-dividing state, circuit breaker interlock plate 8 can carry out freely stretching, but interlock plate wedge block 2 levels be free to slide, this moment can carry out breaking-closing operating to earthed switch;
When the vacuum circuit breaker is in the service position or leaves arbitrary position of test position; Said circuit breaker interlock plate 8 works; Can not carry out freely stretching; Said connecting plate wedge block 1 is trapped in the extreme higher position under the effect of interlock plate wedge block 2, can't operate this moment to said earthed switch.
2, force analysis:
The setting of the gradient on above-described inclined-plane makes normal pressure on the inclined-plane towards the component of said interlock plate wedge block 2 directions of motion, greater than the component on said connecting plate wedge block 1 direction of motion.
To the setting of above-mentioned inclined-plane gradient, its stress is pressed Fig. 7 and shown in Figure 8, analyzes as follows:
Because the contact-making surface between supporting bracket 5 and the interlock plate wedge block 2 is little; Consequent frictional force is ignored; The active force that during circuit breaker interlock plate 8 free states interlock plate wedge block 2 is produced is ignored, and get the D point interlock plate wedge block 2 is carried out force analysis (as shown in Figure 7): F: connecting plate wedge block 1 puts on the power on the interlock plate wedge block 2 through the inclined-plane;
F1=Fsinθ；F2=Fcosθ；
Get 45 °＜θ＜90 °, F1＞F2;
Interlock plate wedge block 2 slides left under the effect of component F1 at this moment.
In order to reduce to put on the external force size on the connecting plate wedge block 1, make entire mechanism more flexible, laborsaving, should strengthen the θ angle as far as possible, make component F1 much larger than component F2.
Mathematical relationship between the flexible stroke L of θ angle and interlock plate (get among Fig. 5 and Fig. 7 D point analyze):
Getting connecting plate wedge block 1, to slide up and down stroke be definite value C, and the mathematical relationship between the flexible stroke L of θ angle and interlock plate is as shown in Figure 8:
The interlock plate stroke L=Ccotan θ that stretches, (45 °＜θ＜90 °).
According to the flexible stroke of different vacuum circuit-breaker interlock plates, confirm different θ angle values, can confirm the fit dimension between connecting plate wedge block 1 and the interlock plate wedge block 2 like this, realize the seriation design of interlocking device.
Combine accompanying drawing that the present invention has been carried out exemplary description above; Obviously the concrete realization of the present invention does not receive the restriction of aforesaid way; As long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; Or design of the present invention and technical scheme are directly applied to other occasion without improving, all within protection scope of the present invention.
Claims (5)
1. vacuum circuit-breaker and earthed switch interlocking device; Comprise earthed switch operating mechanism (6) and circuit breaker interlock plate (8); It is characterized in that: described earthed switch operating mechanism (6) is established connecting plate (4), and described interlocking device establishes supporting bracket (5); On described connecting plate (4), establish connecting plate wedge block (1), on described supporting bracket (5), establish interlock plate wedge block (2); Described circuit breaker interlock plate (8) contacts with the guide rod of described interlock plate wedge block (2) back; Described connecting plate wedge block (1) is orthogonal with the direction of motion of interlock plate wedge block (2); Described connecting plate wedge block (1) is slidingly connected through the inclined-plane with interlock plate wedge block (2).
2. according to described vacuum circuit-breaker of claim 1 and earthed switch interlocking device; It is characterized in that: establish back-moving spring (3) on the described supporting bracket (5); Described back-moving spring (3) is enclosed within on the guide rod of described interlock plate wedge block (2) back, and the action direction of its spring force is to make said interlock plate wedge block (2) press to connecting plate wedge block (1).
3. according to described vacuum circuit-breaker of claim 2 and earthed switch interlocking device, it is characterized in that: each other motion of described circuit breaker interlock plate (8) and described interlock plate wedge block (2), stressed on same straight line.
4. according to claim 1 or 2 or 3 described vacuum circuit-breakers and earthed switch interlocking device, it is characterized in that:
When described earthed switch is in gate-dividing state; Said connecting plate wedge block (1) upwards slides into the extreme higher position; Said interlock plate wedge block (2) horizontal slip under the effect of back-moving spring (3); Make circuit breaker interlock plate (8) return to reset condition, can operate this moment to vacuum circuit-breaker;
When described earthed switch is in "on" position; Described connecting plate wedge block (1) slides down to extreme lower position; Said interlock plate wedge block (2) horizontal slip under the effect of connecting plate wedge block (1); Make circuit breaker interlock plate (8) be compressed to Interlock Status, can not carry out any operation this moment to vacuum circuit-breaker; Otherwise when the vacuum circuit breaker was in test, gate-dividing state, circuit breaker interlock plate (8) can carry out freely stretching, interlock plate wedge block (2) but level be free to slide, this moment can carry out breaking-closing operating to earthed switch;
When the vacuum circuit breaker is in the service position or leaves arbitrary position of test position; Said circuit breaker interlock plate (8) works; Can not carry out freely stretching; Said connecting plate wedge block (1) is trapped in the extreme higher position under the effect of interlock plate wedge block (2), can't operate this moment to said earthed switch.
5. according to claim 1 or 2 or 3 described vacuum circuit-breakers and earthed switch interlocking device; It is characterized in that: the setting of the gradient on described inclined-plane; Make normal pressure on the inclined-plane towards the component of said interlock plate wedge block (2) direction of motion, greater than the component on said connecting plate wedge block (1) direction of motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210146164.6A CN102646526B (en) | 2012-05-11 | 2012-05-11 | Vacuum circuit breaker and grounding switch interlocking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210146164.6A CN102646526B (en) | 2012-05-11 | 2012-05-11 | Vacuum circuit breaker and grounding switch interlocking mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102646526A true CN102646526A (en) | 2012-08-22 |
| CN102646526B CN102646526B (en) | 2015-07-08 |
Family
ID=46659297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210146164.6A Expired - Fee Related CN102646526B (en) | 2012-05-11 | 2012-05-11 | Vacuum circuit breaker and grounding switch interlocking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102646526B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103227064A (en) * | 2013-04-23 | 2013-07-31 | 镇江大全伊顿电器有限公司 | Interlocking mechanism for ground switch and breaker of medium-voltage switch cabinet |
| CN103337802A (en) * | 2013-07-19 | 2013-10-02 | 国家电网公司 | Interlocking device arranged in switch cabinet and used for preventing trolley from being pushed in mistakenly after switching-on of earthing switch |
| CN104282464A (en) * | 2014-10-30 | 2015-01-14 | 向荣集团有限公司 | Breaker interlocking mechanism for switch cabinet |
| CN104485555A (en) * | 2014-12-19 | 2015-04-01 | 广东美的厨房电器制造有限公司 | Universal base assembly |
| CN106960769A (en) * | 2016-12-26 | 2017-07-18 | 杜文福 | A kind of breaking safety lock and double power supply converting switch |
| CN107086145A (en) * | 2017-05-24 | 2017-08-22 | 句容市福润电气有限公司 | Flatly moving type indoor hv earthing switch |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN201508792U (en) * | 2009-08-21 | 2010-06-16 | 三实电器(漳州)有限公司 | Inching switch head portion acting mechanism |
| CN202678158U (en) * | 2012-05-11 | 2013-01-16 | 芜湖明远电力设备制造有限公司 | Vacuum circuit breaker and grounding switch interlocking mechanism |
-
2012
- 2012-05-11 CN CN201210146164.6A patent/CN102646526B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN201508792U (en) * | 2009-08-21 | 2010-06-16 | 三实电器(漳州)有限公司 | Inching switch head portion acting mechanism |
| CN202678158U (en) * | 2012-05-11 | 2013-01-16 | 芜湖明远电力设备制造有限公司 | Vacuum circuit breaker and grounding switch interlocking mechanism |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103227064A (en) * | 2013-04-23 | 2013-07-31 | 镇江大全伊顿电器有限公司 | Interlocking mechanism for ground switch and breaker of medium-voltage switch cabinet |
| CN103337802A (en) * | 2013-07-19 | 2013-10-02 | 国家电网公司 | Interlocking device arranged in switch cabinet and used for preventing trolley from being pushed in mistakenly after switching-on of earthing switch |
| CN103337802B (en) * | 2013-07-19 | 2015-11-18 | 国家电网公司 | The interlock that after preventing ground cutter from closing a floodgate in switch cubicle, handcart pushes by mistake |
| CN104282464A (en) * | 2014-10-30 | 2015-01-14 | 向荣集团有限公司 | Breaker interlocking mechanism for switch cabinet |
| CN104485555A (en) * | 2014-12-19 | 2015-04-01 | 广东美的厨房电器制造有限公司 | Universal base assembly |
| CN104485555B (en) * | 2014-12-19 | 2017-10-27 | 广东美的厨房电器制造有限公司 | Universal base component |
| CN106960769A (en) * | 2016-12-26 | 2017-07-18 | 杜文福 | A kind of breaking safety lock and double power supply converting switch |
| CN106960769B (en) * | 2016-12-26 | 2018-12-21 | 杜文福 | A kind of open circuit safety lock and double power supply converting switch |
| CN107086145A (en) * | 2017-05-24 | 2017-08-22 | 句容市福润电气有限公司 | Flatly moving type indoor hv earthing switch |
| CN107086145B (en) * | 2017-05-24 | 2019-06-11 | 句容市福润电气有限公司 | Flatly moving type indoor hv earthing switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102646526B (en) | 2015-07-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102646526A (en) | Vacuum circuit breaker and grounding switch interlocking mechanism | |
| CN202678158U (en) | Vacuum circuit breaker and grounding switch interlocking mechanism | |
| CN202796572U (en) | Multi-circuit action travel switch | |
| CN105448608B (en) | Breaker test trip gear and breaker and operating mechanism using the device | |
| CN108133870B (en) | A kind of easy-to-dismount low-voltage circuit breaker | |
| CN202258860U (en) | Control mechanism opening release | |
| CN204189643U (en) | A kind of elevator-distance switch UKS device of improvement | |
| CN116168980A (en) | Electronic relay of electric appliance | |
| CN209666160U (en) | The split type core-pulling mechanism of tape travel switch | |
| CN209671886U (en) | A kind of electric automatization overhaul of the equipments protective device | |
| CN208674651U (en) | A kind of energy-saving distributed photovoltaic power generation switch cabinet system | |
| CN202839438U (en) | Double-acting high-voltage sulfur-hexafluoride circuit breaker and double-acting transmission device thereof | |
| CN208806486U (en) | A kind of low-tension switch cabinet facilitating installation cabinet body component | |
| CN102194596A (en) | Electric slide switch | |
| CN105914611A (en) | Distribution box nameplate sticking device | |
| CN206611090U (en) | A kind of direct-push metal closed switch cabinet and elastic card joint | |
| CN105287010A (en) | Anti-corrosion assembly for angiography machine device | |
| CN204189648U (en) | Switch | |
| CN206259281U (en) | Connect the strong load-break switch of disjunction power | |
| CN204991533U (en) | Electric indicating device of circuit breaker three -position | |
| CN113936952B (en) | Miniature integrated vacuum circuit breaker breaking chamber | |
| CN210722857U (en) | Frame type low-voltage three-position switch | |
| CN208848808U (en) | A kind of isolation switch contact device | |
| CN213692746U (en) | Adjustable power equipment switch cabinet | |
| CN109878038A (en) | The split type core-pulling mechanism of tape travel switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ANHUI MINGYUAN POWER EQUIPMENT MANUFACTURE LTD. Free format text: FORMER NAME: WUHU MINGYUAN ELECTRICAL EQUIPMENT MANUFACTURE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 241000 Anhui province Wuhu Auto City of Yijiang high tech Industrial Development Zone, Road No. 18 Patentee after: Anhui Mingyuan Power Equipment Manufacture Ltd. Address before: 241000 Anhui province Wuhu Auto City of Yijiang high tech Industrial Development Zone, Road No. 18 Patentee before: Wuhu Mingyuan Electrical Equipment Manufacture Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20210511 |