CN104103469B - A kind of single-column all insulation crane - Google Patents
A kind of single-column all insulation crane Download PDFInfo
- Publication number
- CN104103469B CN104103469B CN201410313801.3A CN201410313801A CN104103469B CN 104103469 B CN104103469 B CN 104103469B CN 201410313801 A CN201410313801 A CN 201410313801A CN 104103469 B CN104103469 B CN 104103469B
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- arc
- contact
- spring
- insulation
- moving contact
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- 238000009413 insulation Methods 0.000 title claims abstract description 41
- 230000003068 static effect Effects 0.000 claims description 13
- 239000004593 Epoxy Substances 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims 1
- 239000012212 insulator Substances 0.000 abstract description 21
- 229920003266 Leaf® Polymers 0.000 description 10
- 210000003660 reticulum Anatomy 0.000 description 5
- 238000010891 electric arc Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Abstract
The invention discloses a kind of single-column all insulation crane, comprise fuse and arc-extinguishing tube, also comprise barrel type insulation, insulator inner chamber upper and lower is respectively equipped with upper and lower fixed contact, upper and lower fixed contact extends to outside insulator respectively by the upper and lower binding post running through insulator wall, the middle part of insulator is provided with mounting bracket, and its lower end is connected with bonnet; Arc-extinguishing tube is arranged at the sub-inner chamber of barrel type insulation, its upper end is connected with top connection, moving contact is connected with above top connection, arc-extinguishing tube lower end is also connected with lower contact, arc-extinguishing tube outer wall cover has arc extinguishing spring and lower moving contact, and fuse upper end is clamped and fastened between moving contact and top connection, and its lower end is downwards successively through top connection, arc-extinguishing tube and lower contact, turn back and be connected to lower moving contact, the length of described fuse makes arc extinguishing spring be in compressive state; Described upper and lower moving contact connects upper and lower fixed contact respectively.The present invention meets the requirement of all insulation, and coefficient of safety is high.
Description
Technical field
The present invention relates to circuit overload and short-circuit protection technical field, be specifically related to a kind of single-column all insulation crane.
Background technology
Drop type crane is a kind ofly applicable to rated voltage 10kV, rated current 200A and following, the distribution line of frequency 50HZ and the overload of distribution transformer and short-circuit protection, mainly comprise insulated leg, moving contact, fixed contact, arc-extinguishing tube and fuse, when crane is in closing position, dynamic and static contact is compressed by Compress Spring, to ensure there is enough pressure between contact, rotating torque spring is equipped with in arc-extinguishing tube lower end; After fuse loads, namely torque spring is tightened, and makes fuse be in tension, to ensure arc-extinguishing tube when closing position from contracting; When circuit overload or short circuit fuse failure, by means of the effect of torque spring, electric arc between the fuse broken in two is elongated rapidly, a large amount of arc extinguishing gases is produced in arc-extinguishing tube, electric arc is extinguished rapidly, to reduce the loss of arcing time and arc extinguishing material, after arc extinction, arc-extinguishing tube deadweight and bridge-shaped contact Compress Spring effect under automatically fall, form obvious visible fracture.
The upper and lower contact of this drop type crane is in naked state respectively, cannot meet the requirement of all insulation, there is certain potential safety hazard.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of single-column all insulation crane, can solve the requirement that existing drop type separately can meet all insulation, cause the problem that there is potential safety hazard.
The present invention is achieved through the following technical solutions:
A kind of single-column all insulation crane, comprise fuse and arc-extinguishing tube, also comprise barrel type insulation that upper end seals, lower end is uncovered, described insulator inner chamber upper and lower is respectively equipped with upper static contact and lower fixed contact, described upper static contact and lower fixed contact respectively by running through the upper connecting terminal of insulator wall, lower connecting terminal extends to outside insulator, the middle part of described insulator is provided with mounting bracket, and its uncovered lower end is sealedly connected with bonnet, described arc-extinguishing tube is coaxially arranged at the sub-inner chamber of barrel type insulation, its upper end is connected with top connection, moving contact is connected with above described top connection, described arc-extinguishing tube lower end is also connected with lower contact, described top connection is communicated with the through hole of arc-extinguishing tube with lower contact is respectively equipped with, described arc-extinguishing tube outer wall cover has arc extinguishing spring and lower moving contact, described fuse upper end is clamped and fastened between moving contact and top connection, its lower end is downwards successively through top connection, arc-extinguishing tube and lower contact, turn back again and be connected to lower moving contact, the length of described fuse makes the arc extinguishing spring between lower moving contact and lower contact be in compressive state, described upper moving contact and lower moving contact are connected upper static contact and lower fixed contact respectively.
Described insulator inwall is also connected with epoxy sleeve, and described arc-extinguishing tube is coaxially arranged at epoxy barrel bore, and mounting bracket is connected between insulator inwall and epoxy sleeve outer wall, is fixed by straight pin.
Described insulator top is also provided with the upper spring cover of upper end open, lower end closed, and is connected to the top electrode of upper spring set upper side, and described top electrode is connected with upper connecting terminal, is connected with the polar cap that powers in the wiring hole of described upper connecting terminal; Be provided with connecting rod and upper spring in described upper spring cover, described small end is connected with upper spring lower end, and described upper spring upper end is connected with top electrode, and described small end is also connected with top electrode by the annealed copper wire running through upper spring; Upper spring cover lower surface is run through in described connecting rod lower end, and described upper static contact upper end is fixedly connected on connecting rod, and lower end and upper moving contact are fitted.
Described insulator bottom be radially provided with inner to close, the top stem casing of outer end opening, and be connected to the bottom electrode of top stem casing openend, coaxial push rod and push rod spring is also provided with in described top stem casing, described push rod spring two ends connect push rod and bottom electrode respectively, described bottom electrode connects lower connecting terminal, is connected with bottom electrode lid in the wiring hole of described lower connecting terminal; Described lower fixed contact is n shape, its inwall is connected with the identical spring leaf of shape with it, described lower fixed contact side outer wall laminating lower moving contact outer wall, described top stem casing is inner to be extended to spring leaf two side through lower fixed contact and another sidewall of spring leaf, and described push rod one end passes from top stem casing the inner and fits in spring leaf inwall.
Described insulator lower end is also connected with coaxial insulation tube connector, and bonnet connects the lower port of insulation tube connector.
The present invention's being a little compared with prior art:
One, lower moving contact is slidably connected at arc-extinguishing tube outer wall, arc extinguishing is realized by arc extinguishing spring during fuse failure, arc-extinguishing tube and upper and lower moving contact are arranged in barrel type insulation, with respectively by upper and lower binding post, the upper and lower fixed contact extended to outside insulator is connected, meet the requirement of all insulation, coefficient of safety is high;
Two, there will not be Slow-disconnecting and slow-connecting or do not reach the phenomenon of position, reliability is high;
Three, structure is simple, easy to maintenance, and low cost is practical.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the part A enlarged drawing of Fig. 1.
Wherein 1 is upper connecting terminal, 2 is the polar caps that power on, 3 is top electrodes, 4 is annealed copper wires, 5 is upper spring covers, 6 is upper static contacts, 7 is upper moving contacts, 8 is fuses, 9 is top connections, 10 is mounting brackets, 11 is straight pins, 12 is arc-extinguishing tubes, 13 is epoxy sleeves, 14 is barrel type insulation, 15 is lower moving contacts, 16 is lower fixed contacts, 17 is spring leafs, 18 is top stem casings, 19 is push rods, 20 is push rod spring, 21 is bottom electrodes, 22 is bottom electrode lids, 23 is lower connecting terminals, 25 is screw rods, 26 is hexagon nut with flanges, 27 is arc extinguishing springs, 28 is lower contacts, 29 is insulation tube connectors, 30 is bonnets.
Embodiment
A kind of single-column all insulation crane as depicted in figs. 1 and 2, comprises fuse 8 and arc-extinguishing tube 12, and also comprise barrel type insulation 14 that upper end seals, lower end is uncovered, described insulator 14 inwall is also connected with epoxy sleeve 13, described insulator 14 top is provided with upper connecting terminal 1, upper static contact 6, the upper spring cover 5 of upper end open lower end closed, and be connected to the top electrode 3 that upper spring overlaps 5 upper ends, described upper connecting terminal 1 runs through insulator 14 top, described top electrode 3 is connected with upper connecting terminal 1, the polar cap 2 that powers on is connected with in the wiring hole of described upper connecting terminal 1, connecting rod and upper spring is provided with in described upper spring cover 5, described small end is connected with upper spring lower end, described upper spring upper end is connected with top electrode 3, described small end is also connected with top electrode 3 by the annealed copper wire 4 running through upper spring, described connecting rod lower end is run through upper spring and is overlapped 5 lower surfaces, described upper static contact 6 upper end is fixedly connected on connecting rod, described insulator 14 bottom is radially provided with lower fixed contact 16, lower connecting terminal 23, the inner top stem casing 18 closing outer end opening, and be connected to the bottom electrode 21 of top stem casing 18 openend, described lower connecting terminal 23 runs through the wall of insulator 14, coaxial push rod 19 and push rod spring 20 is also provided with in described top stem casing 18, described push rod spring 20 two ends connect push rod 19 and bottom electrode 21 respectively, described bottom electrode 21 connects lower connecting terminal 23, bottom electrode lid 22 is connected with in the wiring hole of described lower connecting terminal 23, described lower fixed contact 16 is in n shape, its inwall is connected with the identical spring leaf of shape with it 17, described top stem casing 18 is inner to be extended to spring leaf 17 two side through lower fixed contact 16 and another sidewall of spring leaf 17, described push rod 19 one end passes from top stem casing 18 the inner and fits in spring leaf 17 inwall, described lower fixed contact 16 is respectively equipped with two covers with corresponding spring leaf 17, top stem casing 18, push rod 19, push rod spring 20, is symmetricly set on lower moving contact 15 both sides, described arc-extinguishing tube 12 is coaxially arranged at epoxy sleeve 13 inner chamber, its upper end is connected with top connection 9, moving contact 7 is connected with above described top connection 9, described arc-extinguishing tube 12 lower end is also connected with lower contact 28, described top connection 9 is respectively equipped with in lower contact 28 through hole being communicated with arc-extinguishing tube 12, described arc-extinguishing tube 12 outer wall cover has arc extinguishing spring 27 and lower moving contact 15, described fuse 8 upper end is clamped and fastened between moving contact 7 and top connection 9, its lower end is downwards successively through top connection 9, arc-extinguishing tube 12 and lower contact 28, turn back again and be connected to lower moving contact 15, the length of described fuse 8 makes the arc extinguishing spring 27 between lower moving contact 15 and lower contact 28 be in compressive state, described upper moving contact 7 and lower moving contact 15 are connected laminating upper static contact 6 and lower fixed contact 16 respectively.
The middle part of described insulator 14 is within it provided with between wall and epoxy sleeve 13 outer wall by the fixing mounting bracket 10 of straight pin 11, and its uncovered lower end is connected with coaxial insulation tube connector 29, and the lower port of insulation tube connector 29 is sealedly connected with bonnet 30.
When fuse 8 is molten break in two time, arc extinguishing spring 27 makes to be connected to the electric arc produced between the two-section fuse of moving contact 7 and lower moving contact 15 and elongates rapidly, thus realizes arc extinguishing; Because lower moving contact 15 is clamped by the lower fixed contact 16 of both sides, bonnet 30 direction of arc-extinguishing tube 12 to insulator 14 under the active force of arc extinguishing spring 27 ejects.
Claims (5)
1. a single-column all insulation crane, comprise fuse (8) and arc-extinguishing tube (12), it is characterized in that: also comprise upper end sealing, barrel type insulation (14) that lower end is uncovered, described barrel type insulation (14) inner chamber upper and lower is respectively equipped with upper static contact (6) and lower fixed contact (16), described upper static contact (6) and lower fixed contact (16) are respectively by the upper connecting terminal (1) running through barrel type insulation (14) wall, lower connecting terminal (23) extends to barrel type insulation (14) outward, the middle part of described barrel type insulation (14) is provided with mounting bracket (10), its uncovered lower end is sealedly connected with bonnet (30), described arc-extinguishing tube (12) is coaxially arranged at barrel type insulation (14) inner chamber, its upper end is connected with top connection (9), described top connection (9) top is connected with moving contact (7), described arc-extinguishing tube (12) lower end is also connected with lower contact (28), described top connection (9) is respectively equipped with in lower contact (28) through hole being communicated with arc-extinguishing tube (12), described arc-extinguishing tube (12) outer wall cover has arc extinguishing spring (27) and lower moving contact (15), described fuse (8) upper end is clamped and fastened between moving contact (7) and top connection (9), its lower end is downwards successively through top connection (9), arc-extinguishing tube (12) and lower contact (28), turn back again and be connected to lower moving contact (15), the length of described fuse (8) makes the arc extinguishing spring (27) be positioned between lower moving contact (15) and lower contact (28) be in compressive state, described upper moving contact (7) and lower moving contact (15) are connected upper static contact (6) and lower fixed contact (16) respectively.
2. a kind of single-column all insulation crane as claimed in claim 1, it is characterized in that: described barrel type insulation (14) inwall is also connected with epoxy sleeve (13), described arc-extinguishing tube (12) is coaxially arranged at epoxy sleeve (13) inner chamber, mounting bracket (10) is connected between barrel type insulation (14) inwall and epoxy sleeve (13) outer wall, is fixed by straight pin (11).
3. a kind of single-column all insulation crane as claimed in claim 1, it is characterized in that: described barrel type insulation (14) top is also provided with the upper spring cover (5) of upper end open, lower end closed, and be connected to the top electrode (3) of upper spring cover (5) upper end, described top electrode (3) is connected with upper connecting terminal (1), is connected with the polar cap that powers on (2) in the wiring hole of described upper connecting terminal (1); Be provided with connecting rod and upper spring in described upper spring cover (5), described small end is connected with upper spring lower end, and described upper spring upper end is connected with top electrode (3), and described small end is also connected with top electrode (3) by the annealed copper wire (4) running through upper spring; Upper spring cover (5) lower surface is run through in described connecting rod lower end, and described upper static contact (6) upper end is fixedly connected on connecting rod, and lower end and upper moving contact (7) are fitted.
4. a kind of single-column all insulation crane as claimed in claim 1, it is characterized in that: described barrel type insulation (14) bottom is radially provided with inner closing, the top stem casing (18) of outer end opening, and be connected to the bottom electrode (21) of top stem casing (18) openend, coaxial push rod (19) and push rod spring (20) is also provided with in described top stem casing (18), described push rod spring (20) two ends connect push rod (19) and bottom electrode (21) respectively, described bottom electrode (21) connects lower connecting terminal (23), bottom electrode lid (22) is connected with in the wiring hole of described lower connecting terminal (23), described lower fixed contact (16) is in n shape, its inwall is connected with the identical spring leaf of shape with it (17), described lower fixed contact (16) side outer wall laminating lower moving contact (15) outer wall, described top stem casing (18) is inner to be extended to spring leaf (17) two side through lower fixed contact (16) and spring leaf (17) another sidewall, and described push rod (19) one end passes from top stem casing (18) the inner and fits in spring leaf (17) inwall.
5. a kind of single-column all insulation crane as claimed in claim 1, is characterized in that: described barrel type insulation (14) lower end is also connected with coaxial insulation tube connector (29), and bonnet (30) connects the lower port of insulation tube connector (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410313801.3A CN104103469B (en) | 2014-07-03 | 2014-07-03 | A kind of single-column all insulation crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410313801.3A CN104103469B (en) | 2014-07-03 | 2014-07-03 | A kind of single-column all insulation crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104103469A CN104103469A (en) | 2014-10-15 |
| CN104103469B true CN104103469B (en) | 2016-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410313801.3A Active CN104103469B (en) | 2014-07-03 | 2014-07-03 | A kind of single-column all insulation crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104103469B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319209A (en) * | 2014-10-27 | 2015-01-28 | 江苏省电力公司洪泽县供电公司 | High-safety single column fully insulated line connector |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB375772A (en) * | 1929-12-26 | 1932-06-30 | Alberto Saporta | Improvements in or relating to fuse apparatus for the protection of electrical circuits |
| GB601717A (en) * | 1946-05-27 | 1948-05-11 | Line Equipment Ltd | Improvements in or relating to fusible electric cut-outs |
| CN201038104Y (en) * | 2007-04-03 | 2008-03-19 | 赵海洋 | Closed insert type high voltage fuse |
| CN202013858U (en) * | 2011-05-16 | 2011-10-19 | 曲秀均 | Built-in drop-out fuse for fully insulated melt pipe |
| CN203931995U (en) * | 2014-07-03 | 2014-11-05 | 江苏省电力公司洪泽县供电公司 | A kind of single-column all insulation crane |
-
2014
- 2014-07-03 CN CN201410313801.3A patent/CN104103469B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB375772A (en) * | 1929-12-26 | 1932-06-30 | Alberto Saporta | Improvements in or relating to fuse apparatus for the protection of electrical circuits |
| GB601717A (en) * | 1946-05-27 | 1948-05-11 | Line Equipment Ltd | Improvements in or relating to fusible electric cut-outs |
| CN201038104Y (en) * | 2007-04-03 | 2008-03-19 | 赵海洋 | Closed insert type high voltage fuse |
| CN202013858U (en) * | 2011-05-16 | 2011-10-19 | 曲秀均 | Built-in drop-out fuse for fully insulated melt pipe |
| CN203931995U (en) * | 2014-07-03 | 2014-11-05 | 江苏省电力公司洪泽县供电公司 | A kind of single-column all insulation crane |
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| Publication number | Publication date |
|---|---|
| CN104103469A (en) | 2014-10-15 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Yang Inventor after: Yang Biao Inventor after: Cai Jianping Inventor after: Huang Yong Inventor after: Yao Jincheng Inventor after: Yang Wenhao Inventor after: Li Changgen Inventor after: Yang Aihua Inventor before: Yang Biao Inventor before: Yang Aihua Inventor before: Cai Jianping Inventor before: Yu Yuean Inventor before: Yang Wenhao Inventor before: Ji Yongkui |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: YANG BIAO YANG AIHUA CAI JIANPING YU YUEAN YANG WENHAO JI YONGKUI TO: YANGYANG YANG BIAO CAI JIANPING HUANG YONG YAO JINCHENG YANG WENHAO LI CHANGGEN YANG AIHUA |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |