CN114464503B - Frame circuit breaker - Google Patents
Frame circuit breaker Download PDFInfo
- Publication number
- CN114464503B CN114464503B CN202210090932.4A CN202210090932A CN114464503B CN 114464503 B CN114464503 B CN 114464503B CN 202210090932 A CN202210090932 A CN 202210090932A CN 114464503 B CN114464503 B CN 114464503B
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- China
- Prior art keywords
- circuit breaker
- guide
- matched
- adjusting
- shock absorber
- 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.)
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Links
- 230000006978 adaptation Effects 0.000 claims description 18
- 238000013016 damping Methods 0.000 claims description 18
- 238000005096 rolling process Methods 0.000 claims description 13
- 230000035939 shock Effects 0.000 claims description 11
- 230000007704 transition Effects 0.000 claims description 5
- 239000006096 absorbing agent Substances 0.000 claims 10
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Breakers (AREA)
Abstract
The invention discloses a frame circuit breaker, which is characterized by comprising a circuit breaker body and an outer frame body matched with the circuit breaker body, wherein an adjustable bracket matched with the circuit breaker body is arranged on the lower side of the circuit breaker body, the adjustable bracket comprises a guide plate and clamping plates positioned on two sides of the guide plate, rubber pads matched with the circuit breaker body are arranged on the inner sides of the guide plate and the clamping plates, at least two guide rods fixedly connected with the guide plates are inserted on the guide plate, the guide rods penetrate through the clamping plates on the two sides, and a limiting structure matched with the guide plates is further arranged at the front end of the circuit breaker body. The invention has the advantages of simple structure, convenient assembly and disassembly and wide applicability.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to a frame circuit breaker.
Background
The universal breaker is also called a frame type breaker, and is a mechanical switching device which can be used for switching on, carrying and breaking current under normal circuit conditions and also can be used for switching on, carrying for a certain time and breaking current under specified abnormal circuit conditions. The universal circuit breaker is used for distributing electric energy and protecting overload, undervoltage, short circuit and the like of a circuit and power supply equipment. Such circuit breakers typically have a steel frame in which all of the components are mounted. The capacity is larger, a plurality of functional releases and a plurality of auxiliary contacts can be arranged, has higher sectioning capability and thermal stability, so is often used in places requiring high breaking capability and selective protection.
The frame that the frame circuit breaker used is inside to be equipped with the slide rail, directly fixes it on the slide rail through the bolt, pushes away the slide rail to the frame in again, is fixed the circuit breaker by the bolt again, and though the fixed mode is simple, but later stage dismouting needs to carry corresponding instrument and is troublesome relatively, and the bolt damages the life who influences the frame circuit breaker simultaneously easily. And the sliding rail in the existing frame is not adjustable, so that the circuit breaker with different sizes cannot be suitable for the circuit breaker, the applicability is poor, and the installation and the use are inconvenient.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the frame circuit breaker which has the effects of simple structure, convenience in disassembly and assembly and wide applicability.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a frame circuit breaker, including the circuit breaker body and with the frame body of circuit breaker body looks adaptation, circuit breaker body downside is provided with the adjustable support rather than looks adaptation, and the adjustable support is including the deflector and be located the grip block of deflector both sides, and deflector and grip block inboard are provided with the rubber pad with circuit breaker body looks adaptation, alternate on the deflector to be provided with two at least rather than fixed connection's guide bar, and the guide bar runs through the grip block of both sides, and the front end of circuit breaker body still is provided with the limit structure rather than looks adaptation.
The invention is further provided with: the lower ends of the clamping plate and the guide plate are provided with rolling structures matched with the clamping plate and the guide plate, and the rolling structures comprise rolling brackets and movable balls in interference fit with the rolling brackets.
The invention is further provided with: the guide rod is sleeved with a guide spring matched with the guide rod, two ends of the guide spring are respectively connected to the guide plate and the clamping plate in a propping mode, the lower end of the guide plate is further provided with a guide bulge integrated with the guide plate, and one end of the inner side of the guide bulge is further provided with a guide chamfer.
The invention is further provided with: the front end of the outer frame body is provided with a limit groove matched with the limit structure, the upper end of the limit structure is provided with a limit stop block integrated with the limit structure, the limit stop block is in round corner transition, the front end of the limit structure is provided with a limit shifting block integrated with the limit structure, a plurality of limit springs which are mutually propped against the lower end of the limit structure and are connected with the limit structure are arranged in the limit groove, and the bottom of the outer frame body is provided with a guide groove matched with the guide protrusion.
The invention is further provided with: the left and right sides of the outer frame body all is provided with at least one regulation screw, alternates in the regulation screw be provided with the adjusting bolt of clamping plate mutual butt connection, offered on the lateral wall of clamping plate with adjusting bolt looks adaptation regulation spout, adjusting bolt's tip has seted up adjusting groove, be provided with adjusting spring in the adjusting groove and with adjusting ball of adjusting spring looks adaptation, adjusting ball and adjusting groove mutual swing joint.
The invention is further provided with: the damping support comprises a lower support rod and an upper support rod sleeved on the lower support rod, and damping springs are further arranged in the upper support rod.
The invention is further provided with: the front end of shock-absorbing base has offered the spacing recess rather than integrated limit stop with limit structure looks adaptation, limit stop is last to adopt the fillet transition, limit structure's front end be provided with rather than integrated limit shifting block, be provided with in the spacing recess a plurality of with limit structure lower extreme each other support the spacing spring of pressing in succession, shock-absorbing base go up seted up with the guide groove of direction protruding looks adaptation.
The invention is further provided with: the damping base comprises a damping base body, wherein the left side and the right side of the damping base body are respectively provided with at least one adjusting screw hole, adjusting bolts connected with clamping plates in a mutually abutting mode are inserted in the adjusting screw holes, adjusting sliding grooves matched with the adjusting bolts are formed in the side walls of the clamping plates, adjusting grooves are formed in the end portions of the adjusting bolts, adjusting springs and adjusting balls matched with the adjusting springs are arranged in the adjusting grooves, and the adjusting balls are movably connected with the adjusting grooves.
The invention is further provided with: the movable surface cover is arranged on the outer frame body, the surface cover sliding grooves are arranged on the left side and the right side of the outer frame body and are matched with the outer frame body, the surface cover sliding grooves are arranged in an L-shaped structure, the two ends of the movable surface cover are provided with surface cover protrusions integrated with the movable surface cover, surface cover rollers matched with the surface cover sliding grooves are further sleeved on the surface cover protrusions, and sliding groove protrusions matched with the movable surface cover are further arranged on the outer side of the surface cover sliding grooves.
In summary, the invention has the following beneficial effects:
1. the circuit breaker bodies with different sizes are arranged on the adjustable bracket by adjusting the distance between the clamping plate and the guide plate, and meanwhile, the circuit breaker bodies are limited by the limiting structure, so that the circuit breaker is convenient to assemble and disassemble;
2. Vibration of the breaker body is reduced through the vibration reduction assembly, so that the breaker body is prevented from being damaged, and the service life of the frame breaker is prolonged.
Drawings
Fig. 1 is a perspective view of a first embodiment of the present invention.
Fig. 2 is a front view of a first embodiment of the present invention.
Fig. 3 is a schematic cross-sectional view at A-A in fig. 2.
Fig. 4 is a schematic cross-sectional view at B-B in fig. 2.
Fig. 5 is a schematic cross-sectional view at C-C in fig. 2.
Fig. 6 is a perspective view of a second embodiment of the present invention.
Fig. 7 is a schematic view of a second embodiment of the invention for opening the movable cover.
Fig. 8 is a front view of a second embodiment of the present invention with the movable cover opened.
Fig. 9 is a schematic cross-sectional view at D-D in fig. 8.
Fig. 10 is a schematic cross-sectional view at E-E in fig. 8.
Fig. 11 is a schematic diagram illustrating a second usage state according to the second embodiment of the present invention.
Reference numerals: 1. a circuit breaker body; 2. an outer frame body; 3. a guide plate; 4. a clamping plate; 5. a limit structure; 6. a guide rod; 7. a movable ball; 8. a limit groove; 9. a limit stop; 10. a limiting shifting block; 11. a limit spring; 12. a guide spring; 13. a guide protrusion; 14. a guide groove; 15. an adjusting bolt; 16. adjusting the chute; 17. an adjusting spring; 18. adjusting the ball; 19. a shock absorbing base; 20. a lower support rod; 21. an upper support rod; 23. a movable surface cover; 24. a face cover chute; 25. the surface cover is convex; 26. a cover roller; 27. the chute is convex; .
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
First embodiment, this embodiment discloses a frame circuit breaker, like fig. 1 to 5 including circuit breaker body 1 and with circuit breaker body 1 looks adaptation's frame body 2, circuit breaker body 1 downside is provided with rather than the adjustable support of looks adaptation, adjustable support can adjust the width so as to be applicable to not unidimensional circuit breaker body 1, adjustable support is including deflector 3 and the grip block 4 that is located deflector 3 both sides, deflector 3 and grip block 4 inboard is provided with the rubber pad with circuit breaker body 1 looks adaptation, the interlude is provided with two at least guide bars 28 rather than fixed connection on the deflector 3, guide bar 28 runs through the grip block 4 of both sides, thereby adjust the size of adjustable support through adjusting the interval of grip block 4 and deflector 3, the front end of circuit breaker body 1 still is provided with limit structure 5 rather than the looks adaptation.
The lower extreme of grip block 4 and deflector 3 sets up the rolling structure rather than the looks adaptation, and the rolling structure is including the rolling support and with rolling support interference fit's movable ball 7, the rolling structure can reduce the friction of adjustable support in the removal in-process to the adjustable support of being convenient for uses.
The front end of the outer frame body 2 is provided with a limit groove 8 which is matched with the limit structure 5, the upper end of the limit structure 5 is provided with a limit stop 9 which is integrated with the limit structure, the limit stop 9 is in round corner transition, the front end of the limit structure 5 is provided with a limit shifting block 10 which is integrated with the limit structure, a plurality of limit springs 11 which are mutually propped against the lower end of the limit structure 5 and are connected with the limit shifting block are arranged in the limit groove 8, and when the limit shifting block 1 is pushed in, the limit shifting block 10 is pulled downwards to drive the limit stop 9 to move downwards so that the circuit breaker body 1 enters, and the limit stop 9 is reset after the limit shifting block 10 is released and the circuit breaker body 1 is limited.
The guide rod 28 is sleeved with a guide spring 12 matched with the guide rod, two ends of the guide spring 12 are respectively in abutting connection with the guide plate 3 and the clamping plate 4, the guide plate 3 applies force to the clamping plate 4 through the guide spring 12 so that the clamping plates 4 on two sides move to two sides, the circuit breaker body 1 is conveniently mounted on an adjustable bracket, the lower end of the guide plate 3 is further provided with a guide protrusion 13 integrated with the circuit breaker body, one end of the inner side of the guide protrusion 13 is further provided with a guide chamfer, and the bottom of the outer frame body 2 is provided with a guide groove 14 matched with the guide protrusion 13.
The left and right sides of the outer frame body 2 are all provided with at least one adjusting screw hole, an adjusting bolt 15 connected with the clamping plate 4 in a mutually abutting mode is inserted in the adjusting screw hole, an adjusting chute 16 matched with the adjusting bolt 15 is formed in the side wall of the clamping plate 4, an adjusting groove is formed in the end portion of the adjusting bolt 15, an adjusting spring 17 and an adjusting ball 18 matched with the adjusting spring 17 are arranged in the adjusting groove, the adjusting ball 18 is movably connected with the adjusting groove, the distance between the clamping plate 4 and the guide plate 3 is changed by screwing the adjusting bolt 15, the size of the adjustable bracket is adjusted, and meanwhile the adjusting bolt 15 and the adjusting chute 16 are mutually matched to play a role in guiding to prevent position deviation.
In the second embodiment, as shown in fig. 6 to 11, the difference between the first embodiment and the second embodiment is that the damping component is located at the lower side of the adjustable support, the damping component includes a damping base 19 and a plurality of damping supports, the upper ends of the damping supports are fixedly connected with the damping base 19, the lower ends of the damping supports are fixedly connected with the outer frame 2, the damping supports include a lower support rod 20 and an upper support rod 21 sleeved on the lower support rod 20, and damping springs are further arranged in the upper support rod 21.
The front end of shock-absorbing base 19 has offered the spacing recess 8 with limit structure 5 looks adaptation, limit structure 5's upper end is provided with rather than integrated limit stop 9, and adopt the fillet transition on the limit stop 9, limit structure 5's front end is provided with rather than integrated limit shifting block 10, be provided with in the spacing recess 8a plurality of and limit structure 5 lower extreme each other support the spacing spring 11 of pressing in succession, drive limit stop 9 through drop-down limit shifting block 10 when pushing breaker body 1 and move down and make breaker body 1 get into, limit stop 9 resets and carries out spacingly to breaker body 1 after releasing limit shifting block 10, the last guide groove 14 with the guide protrusion 13 looks adaptation of seting up of shock-absorbing base 19.
The left and right sides of shock-absorbing mount 19 all is provided with at least one regulation screw, alternate in the regulation screw be provided with clamping plate 4 each other the butt adjustment bolt 15 of being connected, set up on the lateral wall of clamping plate 4 with adjusting bolt 15 looks adaptation spout 16, adjusting groove has been seted up to adjusting bolt 15's tip, be provided with adjusting spring 17 in the adjusting groove and with adjusting ball 18 of adjusting spring 17 looks adaptation, thereby adjusting ball 18 and adjusting groove interconnect swing joint, thereby through the interval of screwing adjusting bolt 15 change clamping plate 4 and deflector 3, and then the size of adjustable support, adjusting bolt 15 and adjusting spout 16 mutually support simultaneously can play guiding action and prevent the position deviation.
The movable surface cover 23 matched with the movable surface cover 23 is arranged on the outer frame body 2, the frame breaker can be opened or closed by pulling the movable surface cover 23, the surface cover sliding grooves 24 matched with the movable surface cover 23 are arranged on the left side and the right side of the outer frame body 2, the surface cover sliding grooves 24 are arranged in an L-shaped structure, the surface cover protrusions 25 integrated with the movable surface cover 23 are arranged at the two ends of the movable surface cover 23, the surface cover protrusions 25 are further sleeved with surface cover rollers 26 matched with the surface cover sliding grooves 24, the surface cover rollers 26 facilitate pulling of the movable surface cover 23, the sliding groove protrusions 27 matched with the movable surface cover 23 are further arranged on the outer side of the surface cover sliding grooves 24, and the sliding groove protrusions 27 can prevent the movable surface cover 23 from turning outwards.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. within the design concept of the present invention should be included in the scope of the present invention.
Claims (3)
1. The utility model provides a frame circuit breaker, including circuit breaker body (1) and outer frame body (2) with circuit breaker body (1) looks adaptation, its characterized in that: the circuit breaker is characterized in that an adjustable bracket matched with the circuit breaker body (1) is arranged on the lower side of the circuit breaker body, the adjustable bracket comprises a guide plate (3) and clamping plates (4) positioned on two sides of the guide plate (3), rubber pads matched with the circuit breaker body (1) are arranged on the inner sides of the guide plate (3) and the clamping plates (4), at least two guide rods (6) fixedly connected with the guide plates are inserted in the guide plate (3), the guide rods (6) penetrate through the clamping plates (4) on two sides, and a limiting structure (5) matched with the front end of the circuit breaker body (1) is further arranged at the front end of the circuit breaker body; the lower ends of the clamping plate (4) and the guide plate (3) are provided with rolling structures matched with the clamping plate and the guide plate, and the rolling structures comprise rolling brackets and movable balls (7) in interference fit with the rolling brackets; the guide rod (6) is sleeved with a guide spring (12) matched with the guide rod, two ends of the guide spring (12) are respectively in pressing connection with the guide plate (3) and the clamping plate (4), the lower end of the guide plate (3) is also provided with a guide bulge (13) integrated with the guide plate, and one end of the inner side of the guide bulge (13) is also provided with a guide chamfer; the shock absorber comprises an outer frame body (2), and is characterized by further comprising a shock absorber component positioned on the lower side of the adjustable support, wherein the shock absorber component comprises a shock absorber base (19) and a plurality of shock absorber supports, the upper ends of the shock absorber supports are fixedly connected with the shock absorber base (19), the lower ends of the shock absorber supports are fixedly connected with the outer frame body (2), the shock absorber supports comprise lower support rods (20) and upper support rods (21) sleeved on the lower support rods (20), and shock absorber springs are further arranged in the upper support rods (21); limiting grooves (8) matched with the limiting structures (5) are formed in the front ends of the damping bases (19), limiting stop blocks (9) integrated with the limiting structures (5) are arranged at the upper ends of the limiting structures (5), round corner transition is adopted on the limiting stop blocks (9), limiting shifting blocks (10) integrated with the limiting structures are arranged at the front ends of the limiting structures (5), a plurality of limiting springs (11) which are in butt pressing connection with the lower ends of the limiting structures (5) are arranged in the limiting grooves (8), and guide grooves (14) matched with the guide protrusions (13) are formed in the damping bases (19).
2. A frame circuit breaker according to claim 1, characterized in that: the damping base is characterized in that at least one adjusting screw hole is formed in the left side and the right side of the damping base (19), an adjusting bolt (15) which is connected with the clamping plate (4) in a mutually abutting mode is inserted into the adjusting screw hole, an adjusting chute (16) which is matched with the adjusting bolt (15) is formed in the side wall of the clamping plate (4), an adjusting groove is formed in the end portion of the adjusting bolt (15), an adjusting spring (17) and an adjusting ball (18) which is matched with the adjusting spring (17) are arranged in the adjusting groove, and the adjusting ball (18) is movably connected with the adjusting groove.
3. A frame circuit breaker according to claim 2, characterized in that: the novel multifunctional movable cover is characterized in that movable cover covers (23) matched with the outer frame body are arranged on the outer frame body (2), cover sliding grooves (24) matched with the outer frame body are formed in the left side and the right side of the outer frame body (2), the cover sliding grooves (24) are arranged in an L-shaped structure, cover protrusions (25) integrated with the movable cover are arranged at the two ends of the movable cover (23), cover rollers (26) matched with the cover sliding grooves (24) are further sleeved on the cover protrusions (25), and sliding groove protrusions (27) matched with the movable cover (23) are further arranged on the outer side of the cover sliding grooves (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210090932.4A CN114464503B (en) | 2022-01-13 | 2022-01-13 | Frame circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210090932.4A CN114464503B (en) | 2022-01-13 | 2022-01-13 | Frame circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114464503A CN114464503A (en) | 2022-05-10 |
| CN114464503B true CN114464503B (en) | 2024-06-07 |
Family
ID=81411336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210090932.4A Active CN114464503B (en) | 2022-01-13 | 2022-01-13 | Frame circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114464503B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140001707U (en) * | 2012-09-14 | 2014-03-24 | 엘에스산전 주식회사 | Buffering device for circuit breaker |
| CN205657004U (en) * | 2016-05-26 | 2016-10-19 | 马鞍山市智宸科技有限公司 | Fixed vacuum circuit breaker with adjustable damping structure |
| CN106981403A (en) * | 2017-05-16 | 2017-07-25 | 太仓市友达电气技术有限公司 | A kind of adjustable setting of breaker installation |
| CN108615649A (en) * | 2018-06-25 | 2018-10-02 | 许昌市长江高压计量设备有限公司 | A kind of high-pressure vacuum breaker having protective |
| CN208781786U (en) * | 2018-10-11 | 2019-04-23 | 天舍电气科技有限公司 | Frame circuit breaker |
| CN209962978U (en) * | 2019-05-16 | 2020-01-17 | 扬州市祥源电力设备有限公司 | Circuit breaker installing support convenient to adjust |
| CN213483666U (en) * | 2020-10-27 | 2021-06-18 | 山东城电电力工程有限公司 | Frame circuit breaker convenient to adjust |
| CN213519812U (en) * | 2020-12-24 | 2021-06-22 | 温州诺普电气科技有限公司 | Draw-out type molded case circuit breaker |
| CN213519811U (en) * | 2020-12-24 | 2021-06-22 | 南京铁道职业技术学院 | Moulded case circuit breaker with shock-absorbing function |
| CN214367509U (en) * | 2021-01-22 | 2021-10-08 | 浙江瑞腾电力发展有限公司 | Circuit breaker for power transmission and distribution engineering |
-
2022
- 2022-01-13 CN CN202210090932.4A patent/CN114464503B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140001707U (en) * | 2012-09-14 | 2014-03-24 | 엘에스산전 주식회사 | Buffering device for circuit breaker |
| CN205657004U (en) * | 2016-05-26 | 2016-10-19 | 马鞍山市智宸科技有限公司 | Fixed vacuum circuit breaker with adjustable damping structure |
| CN106981403A (en) * | 2017-05-16 | 2017-07-25 | 太仓市友达电气技术有限公司 | A kind of adjustable setting of breaker installation |
| CN108615649A (en) * | 2018-06-25 | 2018-10-02 | 许昌市长江高压计量设备有限公司 | A kind of high-pressure vacuum breaker having protective |
| CN208781786U (en) * | 2018-10-11 | 2019-04-23 | 天舍电气科技有限公司 | Frame circuit breaker |
| CN209962978U (en) * | 2019-05-16 | 2020-01-17 | 扬州市祥源电力设备有限公司 | Circuit breaker installing support convenient to adjust |
| CN213483666U (en) * | 2020-10-27 | 2021-06-18 | 山东城电电力工程有限公司 | Frame circuit breaker convenient to adjust |
| CN213519812U (en) * | 2020-12-24 | 2021-06-22 | 温州诺普电气科技有限公司 | Draw-out type molded case circuit breaker |
| CN213519811U (en) * | 2020-12-24 | 2021-06-22 | 南京铁道职业技术学院 | Moulded case circuit breaker with shock-absorbing function |
| CN214367509U (en) * | 2021-01-22 | 2021-10-08 | 浙江瑞腾电力发展有限公司 | Circuit breaker for power transmission and distribution engineering |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114464503A (en) | 2022-05-10 |
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