CN213184047U - Special assembly and disassembly tools of portable plum blossom contact - Google Patents
Special assembly and disassembly tools of portable plum blossom contact Download PDFInfo
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- CN213184047U CN213184047U CN202021601515.4U CN202021601515U CN213184047U CN 213184047 U CN213184047 U CN 213184047U CN 202021601515 U CN202021601515 U CN 202021601515U CN 213184047 U CN213184047 U CN 213184047U
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Abstract
The utility model relates to a special disassembling tool for a portable plum blossom contact, which comprises a hollow handle seat, a pushing component and a linkage support rod component; the linkage support rod assembly is rotatably connected to the front of the handle seat and is used for opening the tulip contact; the pushing assembly comprises a hand wheel and a screw rod, the screw rod horizontally penetrates through the handle seat, a thrust bearing is sleeved on the outer ring of the middle section of the screw rod and is fixed in the handle seat, the front end of the screw rod extends outwards to penetrate through the handle seat, and the rear end of the screw rod is fixedly connected with the hand wheel; the linkage supporting rod assembly comprises a movable seat connected to the front end of a screw rod penetrating through the handle seat, a plurality of front supporting rods and a plurality of rear supporting rods, wherein the front supporting rods and the rear supporting rods are arranged along the circumferential direction of the screw rod in a staggered mode, a positioning block is arranged on the screw rod between the movable seat and the end of the handle seat, and the positioning block abuts against the handle seat tightly.
Description
Technical Field
The utility model particularly relates to a special assembly and disassembly tools of portable plum blossom contact belongs to power equipment dismounting device technical field.
Background
KYN type cubical switchboard handcart switch is important equipment in the transformer substation below 35kV, and numerous, plum blossom contact is the connecting device of KYN type cubical switchboard handcart switch movable contact arm and static contact; the plum blossom contact is composed of a plurality of contact petals, a framework and a spring which are circumferentially arranged, a fixture block on the inner side of each plum blossom contact petal is matched with an annular clamping groove of a movable contact arm of a handcart switch to realize connection with the movable contact arm, the other end of each plum blossom contact is inserted into a fixed contact to realize conductive connection, and therefore the effect of switching on current is achieved, and the performance of each plum blossom contact and the contact strength of the plum blossom contact with the movable contact arm and the fixed contact directly influence the running performance of a product; in the use process of the KYN type switch cabinet, due to the fact that an operator operates improperly, a handcart switch is overturned to cause damage of a static contact, a current clamp in a resistance test clamp of a high-voltage test personnel test loop causes aging of a spring, and a screwdriver prying method for traditional disassembly, assembly and maintenance of a plum blossom contact by an maintainer causes damage of the spring and other factors, the plum blossom contact needs to be replaced in time, otherwise, safe and stable operation of the handcart switch is directly influenced.
The plum blossom contact has 400A-4000A series products, and when the plum blossom contact of the handcart switch is overhauled or replaced, the plum blossom contact needs to be disassembled and assembled from the driven contact arm; the traditional method for disassembling and assembling the tulip contact is to press the front part of the contact with force, overcome the binding force of a tension spring at the rear end to open the contact, and disassemble and assemble the tulip contact after prying open a spring on the tulip contact (binding spring type), so that the process needs to be matched by a plurality of people at the same time, the process is complicated, the construction strength is high, time and labor are wasted, particularly, the tulip contact above 2500A is more difficult to disassemble and assemble, and on the other hand, in the process of disassembling and assembling the tulip contact, the deformation of the contact rack or the damage and fatigue of the spring are easily caused because of no special reliable tool, inaccurate mastering of the disassembling and assembling force or improper matching of the personnel, the reliable connection of a conductive part is directly influenced, and the potential safety hazard of equipment operation is greatly. Aiming at the defects of the traditional disassembly and assembly process of the tulip contact and the difficulties of the disassembly and assembly of the tulip contacts with different specifications, a disassembly and assembly tool special for the tulip contact is urgently needed, the working time required by the disassembly and assembly can be effectively shortened, the working efficiency is improved, and the possibility of deformation or damage of the tulip contact is effectively overcome.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a special assembly and disassembly tools of portable plum blossom contact to realize shortening the required operating time of dismouting plum blossom contact effectively, improve work efficiency, and reduce to the contact warp or damage.
The technical scheme of the utility model as follows:
the utility model discloses a special portable disassembly and assembly tool for a plum blossom contact, which comprises a hollow handle seat, a pushing component and a linkage support rod component; the linkage support rod assembly is rotatably connected to the front of the handle seat and is used for opening the tulip contact; the pushing assembly comprises a hand wheel and a screw rod, the screw rod horizontally penetrates through the handle seat, a thrust bearing is sleeved on the outer ring of the middle section of the screw rod and is fixed in the handle seat, the front end of the screw rod extends outwards to penetrate through the handle seat, and the rear end of the screw rod is fixedly connected with the hand wheel; the linkage supporting rod assembly comprises a movable seat connected to the front end of a screw rod penetrating through the handle seat, a plurality of front supporting rods and a plurality of rear supporting rods, wherein the front supporting rods and the rear supporting rods are arranged along the circumferential direction of the screw rod in a staggered mode, a positioning block is arranged on the screw rod between the movable seat and the end of the handle seat, and the positioning block abuts against the handle seat tightly.
Further, the handle seat is equipped with the fixing base near the lateral wall cover of sliding seat, preceding vaulting pole, back vaulting pole are link assembly, and the one end of preceding vaulting pole and back vaulting pole all is articulated with the sliding seat lateral wall, and the other end all articulates with the lateral wall of fixing base.
Further, preceding vaulting pole is including being used for radially strutting the preceding ejector pin that the plum blossom contact touched the lamella along the screw rod and being used for driving the preceding push rod that the front ejector pin opened and shut, back vaulting pole is including being used for radially strutting the back ejector pin that the plum blossom contact touched the lamella along the screw rod and being used for driving the back push rod that the back ejector pin opened and shut.
Furthermore, one end of the front ejector rod is hinged with the outer side wall of the fixed seat, the other end of the front ejector rod is a movable end, one end of the front push rod is hinged with the outer side wall of the movable seat, and the other end of the front push rod extends towards the front ejector rod and is hinged to the middle section of the front ejector rod through a connecting rod pin; one end of the rear ejector rod is hinged with the outer side wall of the fixing seat, the other end of the rear ejector rod is a movable end, one end of the rear push rod is hinged with the outer side wall of the movable seat, and the other end of the rear push rod is hinged to the middle section of the rear ejector rod through a connecting rod pin after extending towards the rear ejector rod.
Furthermore, the movable ends of the front ejector rod and the rear ejector rod are both fixed with arc-shaped supporting blocks vertical to the front ejector rod or the rear ejector rod; and the adjacent arc-shaped supporting blocks are encircled to form a circular ring after the front ejector rod and the rear ejector rod are opened or tightened.
Furthermore, the hinge point of the front ejector rod and the fixed seat is positioned on one side of the fixed seat close to the movable seat; and the hinged point of the rear ejector rod and the fixed seat is positioned on one side of the fixed seat far away from the movable seat.
Furthermore, the hinge point of the front push rod and the movable seat is located on the outer side wall of one end, back to the handle seat, of the movable seat, and the hinge point of the rear push rod and the movable seat is located on the outer side wall of one end, close to the handle seat, of the movable seat.
Furthermore, the distance difference between the hinge point of the front ejector rod and the fixed seat and the hinge point of the rear ejector rod and the fixed seat is 5-6 mm; the hinge point of preceding push rod and sliding seat, the distance difference between the hinge point of back push rod and sliding seat is 5 ~ 6 mm.
Furthermore, a horizontal T-shaped through groove is formed in the handle seat; the diameter of a first channel of the T-shaped through groove, which is close to the hand wheel, is larger than the diameter of a second channel of the T-shaped through groove, which is close to the connecting rod assembly; the thrust bearing fixes an inlet of the second passage.
Furthermore, the positioning block is fixed on the screw rod through an elastic cylindrical pin.
Compared with the prior art, the utility model, following beneficial effect has:
1. the utility model provides a special assembly and disassembly tools of portable plum blossom contact is provided with push rod linkage subassembly, including front stay and the back stay that sets up along screw rod circumference, the hookup location of front stay and back stay staggers each other from front to back, is bilayer structure, and the ejector pin part of front stay and back stay still is provided with the arc bracer, and the arc bracer can mutually support when front stay and back stay open, makes the circular arc area who surrounds formation increase and can realize propping open with bilayer structure the touching lamella to the plum blossom contact, and the working range of instrument increases; simultaneously, the radian and the angle that open of preceding vaulting pole and back vaulting pole all can be selectable make the instrument can be suitable for the plum blossom contact of more models, the utility model provides a but specification universal tool such as instrument rated current 2000A, 2500A, 3150A, 4000A, and wide application bundle general quick assembly disassembly of spring formula plum blossom contact in different models, the utility model provides an instrument can use at the plum blossom contact internal diameter at 73-124mm within range, has overcome the problem that different sizes of plum blossom contact needs different instruments to carry out the dismouting among the prior art.
2. The utility model provides a special assembly and disassembly tools of portable plum blossom contact adopts Archimedes spiral principle, utilize the hand wheel to drive the rotatory push rod linkage subassembly of screw rod and open relative centre of a circle and be radial concertina movement, spring tension can evenly be overcome in the same direction as smooth gently to the push rod linkage subassembly, radially strut the lamella that touches of plum blossom contact along the radial direction of screw rod, the expansion of the complete balanced atress of the lamella that touches of messenger's plum blossom contact, realize swiftly, laborsaving, dismouting and maintenance plum blossom contact reliably, prevent that the barrier support warp, touch and indicate the damage, spring fatigue deformation and electrically conductive groove are impaired etc.
3. The utility model discloses well preceding vaulting pole and back vaulting pole pin joint around the sliding seat distance stagger each other, when preceding ejector pin and back ejector pin open like this, just can not the mutual interference between the arc bracer for the structure remains stable.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a front sectional view of the present invention;
FIG. 3 is a right side view of the connecting rod assembly of the present invention in an open state;
fig. 4 is a right side view of the retracted state of the middle connecting rod assembly according to the present invention.
The reference numbers in the figures denote:
1. a handle seat; 11. a transition section; 12. a first channel; 13. a second channel; 2. a pushing assembly; 21. a hand wheel; 22. a screw; 23. a thrust bearing; 3. a linkage strut assembly; 31. a movable seat; 32. a front stay bar; 33. a rear stay bar; 34. a front ejector rod; 35. a front push rod; 36. a rear ejector rod; 37. a rear push rod; 38. an arc-shaped supporting block; 39. a link pin; 4. positioning blocks; 41. an elastic cylindrical pin; 5. a fixed seat.
Detailed Description
The technical problems, technical solutions and advantages to be solved by the present invention are more clearly understood and will be described in further detail with reference to the accompanying drawings and examples.
It should be noted that, in the drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on those shown in the drawings, it is only for convenience of description and simplicity of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed in a specific direction, and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1 to 4, a portable disassembly and assembly tool special for tulip contacts comprises a hollow handle 1, a pushing assembly 2 and a linkage stay bar assembly 3; the pushing assembly 2 is rotatably connected to the rear of the handle seat 1, and the linkage supporting rod assembly 3 is rotatably connected to the front of the handle seat 1 and used for supporting the tulip contact; the pushing assembly 2 comprises a hand wheel 21 and a screw rod 22, the screw rod 22 horizontally penetrates through the handle seat 1, a thrust bearing 23 is sleeved on the outer ring of the middle section of the screw rod 22, the thrust bearing 23 is fixed inside the handle seat 1, the front end of the screw rod 22 extends outwards to penetrate through the handle seat 1, the rear end of the screw rod 22 is fixedly connected with the hand wheel 21, and the screw rod 22 is driven by the rotation of the hand wheel 21 to rotate inside the handle seat 1; the linkage support rod component 3 comprises a movable seat 31 connected to the front end of a screw rod 22 penetrating through the handle seat 1, and a plurality of front support rods 32 and a plurality of rear support rods 33 which are arranged along the circumferential direction of the screw rod 22 in a front-back staggered manner; the front support rod 32 is provided with 6 groups which are uniformly distributed along the circumferential direction of the screw rod 22, the rear support rod 33 is provided with 6 groups which are uniformly distributed along the circumferential direction of the screw rod 22, the front support rod 32 and the rear support rod 33 are mutually inserted to form 12 groups which are uniformly distributed along the circumferential direction of the screw rod 22, and the angles of each group are staggered by 30 degrees; the movable seat 31 is provided with internal threads and is in threaded connection with the screw rod 22, a positioning block 4 is arranged on the screw rod 22 between the movable seat 31 and the end of the handle seat 1 close to the movable seat 31, the positioning block 4 is fixed on the screw rod 22 through an elastic cylindrical pin 41, and the positioning block 4 is abutted against the handle seat 1; the rotating screw 22 can only rotate in the handle seat 1 and cannot move along the axial direction of the handle seat 1 due to the limiting action of the thrust bearing 23 and the positioning block 4; the push rod linkage assembly is driven by the rotation of the screw rod 22, the movable seat 31 moves back and forth along the screw rod 22 penetrating through the handle seat 1, and then the linkage support rod assembly 3 is driven to open and close, so that the contact petals of the tulip contact are radially opened along the radial direction of the screw rod 22.
Further, a fixed seat 5 is sleeved on the outer side wall, close to the movable seat 31, of the handle seat 1, the front support rod 32 and the rear support rod 33 are both a connecting rod assembly, one end of each of the front support rod 32 and the rear support rod 33 is hinged with the outer side wall of the movable seat 31, and the other end of each of the front support rod 32 and the rear support rod 33 is hinged with the outer side wall of the fixed seat 5; the outer side wall of the movable seat 31 is provided with 12 slotted holes, the outer side wall of the fixed seat 5 is also provided with 12 corresponding slotted holes, and the front stay bar 32 and the rear stay bar 33 are connected in the slotted holes at intervals through pins; the front support rod 32 comprises a front support rod 34 for radially supporting the plum blossom contact petal along the screw 22 and a front push rod 35 for driving the front support rod 34 to open and close, and the rear support rod 33 comprises a rear support rod 36 for radially supporting the plum blossom contact petal along the screw 22 and a rear push rod 37 for driving the rear support rod 36 to open and close; one end of the front ejector rod 34 is hinged with the long slotted hole on the outer side wall of the fixed seat 5, the other end is a movable end, one end of the front push rod 35 is hinged with the long slotted hole on the outer side wall of the movable seat 31, and the other end of the front push rod 34 extends towards the front ejector rod 34 and then is hinged to the middle section of the front ejector rod 34 through a connecting rod pin 39; one end of the rear push rod 36 is hinged with the long groove hole on the outer side wall of the fixed seat 5, the other end is a movable end, one end of the rear push rod 37 is hinged with the long groove hole on the outer side wall of the movable seat 5, and the other end of the rear push rod 37 is hinged to the middle section of the rear push rod 37 through a connecting rod pin 39 after extending towards the rear push rod 36.
Further, the movable ends of the front top bar 34 and the rear top bar 36 are both fixed with an arc-shaped supporting block 38 which is perpendicular to the front top bar 34 or the rear top bar 36; arc bracer 38 can be radially along screw rod 22 when preceding vaulting pole 32 and back vaulting pole 33 open and prop open the lamella that touches of plum blossom contact, makes the circular arc area that surrounds formation increase after arc bracer 38 opens simultaneously, and the working range of instrument increases.
Furthermore, the hinge point of the front push rod 32 and the movable seat 31 is located on the outer side wall of one end of the movable seat 31, which is back to the handle seat 1, and the hinge point of the rear push rod 37 and the movable seat is the outer side wall of one end of the movable seat 31, which is close to the handle seat 1; the distances between the front support rod 32 and the rear support rod 33 are staggered, the distance difference between the hinge point of the front ejector rod and the fixed seat and the hinge point of the rear ejector rod and the fixed seat is 5-6 mm, the front support rod 32 in front can rotate the screw rod 22 again to drive the rear support rod 33 in rear to support the contact of the tulip contact again in a certain range after supporting the contact of the tulip contact in a certain range; when the front post rod 34 and the rear post rod 36 are expanded or contracted, the adjacent arc-shaped supporting blocks 38 are staggered back and forth, so that the structure is stable.
Furthermore, a horizontal T-shaped through groove is formed in the handle seat 1; the diameter of a first channel 12 of the T-shaped through groove, which is close to the hand wheel 21, is larger than that of a second channel 13 of the T-shaped through groove, which is close to the connecting rod assembly; the thrust bearing 23 fixes the inlet of the second passage 13.
The utility model discloses a theory of operation:
when the plum blossom contact of the utility model is used for dismounting, an instrument is embedded into the plum blossom contact along the axial direction of the plum blossom contact, so that the linkage supporting rod component 3 is contacted with the inner side of the contact petal, the hand wheel 21 is rotated, the hand wheel 21 drives the screw rod 22 to rotate in the T-shaped through groove 11, due to the limitation of the thrust bearing 23 and the positioning block 5, the screw rod 22 can only realize the rotation function, the rotation of the screw rod 22 drives the movable seat 31 to move left and right along the front end of the screw rod, the movement of the movable seat 31 drives the front push rod 35 and the rear push rod 37 to move, the front push rod 35 and the rear push rod 37 push the front push rod 34 and the rear push rod 36 to realize opening and closing, the contact petal of the plum blossom contact is opened together with the arc supporting block 38 when the front push rod 34 and the; the front ejector rod 34 and the rear ejector rod 36 have a certain distance in the front-back direction, and when the screw 22 is rotated, the front ejector rod 34 and the rear ejector rod 36 can realize that the contact petals of the tulip contact are opened by a double-layer structure, so that the application range of the tool is enlarged.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (9)
1. The utility model provides a special assembly and disassembly tools of portable plum blossom contact which characterized in that: comprises a hollow handle seat (1), a pushing component (2) and a linkage support rod component (3); the pushing assembly (2) is rotatably connected to the rear of the handle seat (1), and the linkage support rod assembly (3) is rotatably connected to the front of the handle seat (1) and used for opening the tulip contact; the pushing assembly (2) comprises a hand wheel (21) and a screw rod (22), the screw rod (22) horizontally penetrates through the handle seat (1), a thrust bearing (23) is sleeved on the outer ring of the middle section of the screw rod (22), the thrust bearing (23) is fixed in the handle seat (1), the front end of the screw rod (22) extends outwards to penetrate through the handle seat (1), and the rear end of the screw rod is fixedly connected with the hand wheel (21); the linkage support rod component (3) comprises a movable seat (31) connected to the front end of a screw rod (22) penetrating out of the handle seat (1), and a plurality of front support rods (32) and a plurality of rear support rods (33) which are arranged along the circumferential direction of the screw rod (22) in a staggered manner from front to back; the front support rod (32) is provided with 6 groups which are uniformly arranged along the circumferential direction of the screw rod (22), the rear support rod (33) is provided with 6 groups which are uniformly arranged along the circumferential direction of the screw rod (22), the front support rod (32) and the rear support rod (33) are mutually inserted to form 12 groups which are uniformly arranged along the circumferential direction of the screw rod (22), and each group of angles are staggered by 30 degrees; a positioning block (4) is arranged on a screw rod (22) between the movable seat (31) and the end of the handle seat (1), and the positioning block (4) is tightly propped against the handle seat (1); handle seat (1) is close to the lateral wall cover of sliding seat (31) and is equipped with fixing base (5), preceding vaulting pole (32), back vaulting pole (33) are link assembly, and preceding vaulting pole (32) all articulate with sliding seat (31) lateral wall with the one end of back vaulting pole (33), and the other end all articulates with the lateral wall of fixing base (5).
2. The special assembly and disassembly tools of portable plum blossom contact of claim 1, characterized by: preceding vaulting pole (32) are including being used for radially strutting preceding ejector pin (34) that plum blossom contact touched the lamella along screw rod (22) and being used for driving preceding push rod (35) that front ejector pin (34) opened and shut, back vaulting pole (33) are including being used for radially strutting back ejector pin (36) that the plum blossom contact touched the lamella and being used for driving back push rod (37) that back ejector pin (36) opened and shut along screw rod (22).
3. The special assembly and disassembly tools of portable plum blossom contact of claim 2, characterized by: one end of the front ejector rod (34) is hinged with the outer side wall of the fixed seat (5), the other end of the front ejector rod is a movable end, one end of the front push rod (35) is hinged with the outer side wall of the movable seat (31), and the other end of the front push rod extends towards the front ejector rod (34) and is hinged to the middle section of the front ejector rod (34) through a connecting rod pin (39); one end of the rear ejector rod (36) is hinged to the outer side wall of the fixing seat (5), the other end of the rear ejector rod is a movable end, one end of the rear push rod (37) is hinged to the outer side wall of the movable seat (31), and the other end of the rear push rod extends towards the rear ejector rod (36) and then is hinged to the middle section of the rear ejector rod (36) through a connecting rod pin (39).
4. The special assembly and disassembly tools of portable plum blossom contact of claim 2, characterized by: the movable ends of the front ejector rod (34) and the rear ejector rod (36) are both fixed with arc-shaped supporting blocks (38) which are vertical to the front ejector rod (34) or the rear ejector rod (36); and the adjacent arc-shaped supporting blocks (38) are encircled to form a circular ring after the front ejector rod (34) and the rear ejector rod (36) are opened or tightened.
5. The special assembly and disassembly tools of portable plum blossom contact of claim 2, characterized by: the hinge point of the front ejector rod (34) and the fixed seat (5) is positioned on one side of the fixed seat (5) close to the movable seat (31); and the hinged point of the rear ejector rod (36) and the fixed seat (5) is positioned on one side of the fixed seat (5) far away from the movable seat (31).
6. The special assembly and disassembly tools of portable plum blossom contact of claim 2, characterized by: the hinge point of the front push rod (35) and the movable seat (31) is located on the outer side wall of one end, back to the handle seat (1), of the movable seat (31), and the hinge point of the rear push rod (37) and the movable seat (31) is located on the outer side wall of one end, close to the handle seat (1), of the movable seat (31).
7. The special disassembling tool for the portable tulip contact as claimed in any one of claims 5 or 6, wherein: the distance difference between the hinge point of the front ejector rod (34) and the fixed seat (5) and the hinge point of the rear ejector rod (36) and the fixed seat (5) is 5-6 mm; the hinge point of preceding push rod (35) and sliding seat (31), the distance difference between the hinge point of back push rod (37) and sliding seat (31) is 5 ~ 6 mm.
8. The special assembly and disassembly tools of portable plum blossom contact of claim 1, characterized by: a horizontal T-shaped through groove is formed in the handle seat (1); the diameter of a first channel (12) of the T-shaped through groove, which is close to the hand wheel (21), is larger than that of a second channel (13) of the T-shaped through groove, which is close to the connecting rod assembly; the thrust bearing (23) is fixed at the inlet of the second channel (13).
9. The special assembly and disassembly tools of portable plum blossom contact of claim 1, characterized by: the positioning block (4) is fixed on the screw rod (22) through an elastic cylindrical pin (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021601515.4U CN213184047U (en) | 2020-08-04 | 2020-08-04 | Special assembly and disassembly tools of portable plum blossom contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021601515.4U CN213184047U (en) | 2020-08-04 | 2020-08-04 | Special assembly and disassembly tools of portable plum blossom contact |
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| Publication Number | Publication Date |
|---|---|
| CN213184047U true CN213184047U (en) | 2021-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021601515.4U Active CN213184047U (en) | 2020-08-04 | 2020-08-04 | Special assembly and disassembly tools of portable plum blossom contact |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115508592A (en) * | 2022-11-16 | 2022-12-23 | 广东电网有限责任公司佛山供电局 | Circuit breaker plum blossom contact return circuit resistance binding clip |
| CN115621083A (en) * | 2022-12-15 | 2023-01-17 | 江苏高开电力科技有限公司 | Plum blossom contact processing machinery of power circuit breaker |
-
2020
- 2020-08-04 CN CN202021601515.4U patent/CN213184047U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115508592A (en) * | 2022-11-16 | 2022-12-23 | 广东电网有限责任公司佛山供电局 | Circuit breaker plum blossom contact return circuit resistance binding clip |
| CN115621083A (en) * | 2022-12-15 | 2023-01-17 | 江苏高开电力科技有限公司 | Plum blossom contact processing machinery of power circuit breaker |
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