CN202258964U - Low-voltage fusing switch - Google Patents
Low-voltage fusing switch Download PDFInfo
- Publication number
- CN202258964U CN202258964U CN2011202741749U CN201120274174U CN202258964U CN 202258964 U CN202258964 U CN 202258964U CN 2011202741749 U CN2011202741749 U CN 2011202741749U CN 201120274174 U CN201120274174 U CN 201120274174U CN 202258964 U CN202258964 U CN 202258964U
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- CN
- China
- Prior art keywords
- fixed
- moving contact
- contact
- hook
- movable contact
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a low-voltage fusing switch, comprising a base provided with an insulating rubber ring, a fixed contact and a movable contact, a knife switch connected between the fixed contact and the movable contact, and a fusing piece, wherein the fixed contact and the movable contact are mounted on the base; the knife switch comprises two knife boards, a pull ring and compression rings; the two knife boards clamp one end of the movable contact, a bolt is respectively mounted at the two sides of the movable contact, and one compression spring is sleeved on each bolt; one ends of the compression springs push against the outer sides of the two knife boards, and the other ends of the compression springs push against the bolts; the pull ring is fixed between the two knife boards by one of the bolts; a rotary wrenching hook is mounted on the side face of the pull ring; and the movable contact is provided with a clamping opening buckled with the wrenching hook. The low-voltage fusing switch has the advantages that: the acting forces of the two knife boards to the movable contact are more uniform and can clamp the movable contact more firmly; and because the movable contact is provided with the clamping opening buckled with the wrenching hook, the firmness and the security are further improved.
Description
Technical field
The utility model relates to a kind of switch, relates in particular to a kind of low pressure fuse cutout.
Background technology
Existing low pressure fuse cutout; It is installed in fixed contact and moving contact on the base mainly by base, and fuse link is formed; Knife switch is only fixed through bolt and compression spring at its two ends; Because of having only a bolt to compress, it is stressed to be uneven to the knife switch of this structure when clamping moving contact, and fastness is not high.
Summary of the invention
It is high that the purpose of the utility model just provides a kind of fastness, and fuse link is changed low pressure fuse cutout easily.
The utility model is realized through following technical scheme.
The utility model is a kind of low pressure fuse cutout, includes the base that device has the electro-insulating rubber ring, is installed in fixed contact and moving contact on the base; Be connected in the knife switch between quiet, the moving contact; And fuse link, knife switch includes two plug-in strip plates, draw ring and compression spring, and wherein two plug-in strip plates, one end is installed on the fixed contact and rotates around fixed contact; The other end is contained on the moving contact for the free end live splint; Said two plug-in strip plate holders live moving contact an end be set with the compression spring on a bolt and the bolt being separately installed with on the position that is positioned at the moving contact both sides, an end of compression spring withstands the plug-in strip plate outside other end and withstands bolt, wherein a bolt is fixed on draw ring between the two plug-in strip plates simultaneously; The draw ring side is equipped with the hook of pulling of a rotation, and moving contact is provided with a bayonet socket and pulls fastener and closes.
The above-mentioned plate of pulling hook for " L " shape; It is fixed on the draw ring through the rivet activity, and this is pulled hook and includes throw rod and securing rod, and the bayonet socket that securing rod one end is provided with on grab and the moving contact fastens; One end of throw rod is connected with an extension spring, and the other end of this extension spring is fixed on the draw ring.
One end of above-mentioned fuse link is fixed on the fixed contact, the other end be installed in the connecting plate that is fixed on the base and be connected, an insulating protecting plate also is installed below fuse link, the two ends of insulating protecting plate are connected on fixed contact and the connecting plate.
The advantage of the utility model is, (1) is set with the compression spring being positioned to be separately installed with on the plug-in strip Board position of moving contact both sides on a bolt and the bolt, can make two plug-in strip plates more even to the active force of moving contact, folder more firm; (2) moving contact is provided with a bayonet socket and pulls fastener and closes; Guarantee that further two plug-in strip plates can not break away from because of external force effect and moving contact; Only make to pull and just can make two plug-in strip plates and moving contact disengaging after hook and moving contact break away from pulling hook, further improved fastness and fail safe.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the plan structure sketch map of Fig. 1.
Fig. 3 is the part sectional structure sketch map of the utility model knife switch.
Embodiment
Below in conjunction with description of drawings the utility model is described in further detail.
A kind of low pressure fuse cutout as depicted in figs. 1 and 2; Including device has the base 1 of electro-insulating rubber ring 2; Be installed in fixed contact 3 and moving contact 4 on the base 1, be connected in quiet, moving contact 3, the knife switch between 45, and fuse link 15; Knife switch 5 includes two plug-in strip plates 51, draw ring 6 and compression spring 8; Wherein two plug-in strip plates, 51 1 ends are installed on the fixed contact 3 around fixed contact 3 rotations, and the other end is contained on the moving contact 4 for the free end live splint, said two plug-in strip plates 51 clamp moving contact 4 an end be set with compression spring 8 on a bolt 7 and the bolt 7 being separately installed with on the position that is positioned at moving contact 4 both sides; One end of compression spring 8 withstands plug-in strip plate 51 outside other ends and withstands bolt 7; Wherein a bolt 7 is fixed on draw ring 6 between the two plug-in strip plates 51 simultaneously, draw ring 6 sides be equipped with one rotate pull hook 10, moving contact 4 is provided with a bayonet socket 9 and pulls hook 10 and fasten.
As shown in Figure 3; The said hook 10 of pulling is the plate of " L " shape; It is fixed on the draw ring 6 through rivet 11 activities, and this is pulled hook 10 and includes throw rod and securing rod, and the bayonet socket 9 that securing rod one end is provided with on grab 12 and the moving contact 4 fastens; One end of throw rod is connected with an extension spring 13, and the other end of this extension spring 13 is fixed on the draw ring 6.This effect of pulling hook is to guarantee that two plug-in strip plates can not break away from because of external force effect and moving contact; Only make to pull and just can make two plug-in strip plates and moving contact disengaging after hook and moving contact break away from pulling hook; So in figure; Have only the throw rod of pulling hook in the ring through instrument insertion clasp, just can make the grab of pulling on the hook securing rod break away from the bayonet socket on the moving contact, also spur clasp simultaneously and makes knife switch break away from moving contact.
As depicted in figs. 1 and 2; One end of said fuse link 15 is fixed on the fixed contact 3; The other end be installed in the connecting plate 14 that is fixed on the base 1 and be connected, an insulating protecting plate 16 also is installed below fuse link 15, the two ends of insulating protecting plate 16 are connected on fixed contact 3 and the connecting plate 14.The setting of insulating protecting plate can prevent foreign object that the situation that fuse link fractures is taken place, and overall structure is also had certain reinforcement effect.
Claims (3)
1. low pressure fuse cutout; Including device has the base of electro-insulating rubber ring (2) (1); Be installed in fixed contact (3) and moving contact (4) on the base (1); Be connected in the knife switch (5) between quiet, the moving contact (3,4); And fuse link (15), knife switch (5) includes two plug-in strip plates (51), draw ring (6) and compression spring (8), and wherein two plug-in strip plates (51) one ends are installed on the fixed contact (3) and rotate around fixed contact (3); The other end is contained on the moving contact (4) for the free end live splint; It is characterized in that: said two plug-in strip plates (51) clamp moving contact (4) an end be set with compression spring (8) on a bolt (7) and the bolt (7) being separately installed with on the position that is positioned at moving contact (4) both sides, an end of compression spring (8) withstands plug-in strip plate (51) outside other end and withstands bolt (7), wherein a bolt (7) is fixed on draw ring (6) between the two plug-in strip plates (51) simultaneously; Be equipped with on the draw ring (6) one rotate pull hook (10), moving contact (4) is provided with a bayonet socket (9) and pulls hook (10) and fasten.
2. low pressure fuse cutout according to claim 1; It is characterized in that: the said hook (10) of pulling is the plate of " L " shape; It is fixed on the draw ring (6) through rivet (11) activity, and this is pulled hook (10) and includes throw rod and securing rod, and the bayonet socket (9) that securing rod one end is provided with on grab (12) and the moving contact (4) fastens; One end of throw rod is connected with an extension spring (13), and the other end of this extension spring (13) is fixed on the draw ring (6).
3. low pressure fuse cutout according to claim 1; It is characterized in that: an end of said fuse link (15) is fixed on the fixed contact (3); The other end be installed in the connecting plate (14) that is fixed on the base (1) and be connected; In the below of fuse link (15) insulating protecting plate (16) is installed also, the two ends of insulating protecting plate (16) are connected on fixed contact (3) and the connecting plate (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202741749U CN202258964U (en) | 2011-07-31 | 2011-07-31 | Low-voltage fusing switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202741749U CN202258964U (en) | 2011-07-31 | 2011-07-31 | Low-voltage fusing switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202258964U true CN202258964U (en) | 2012-05-30 |
Family
ID=46120168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202741749U Expired - Fee Related CN202258964U (en) | 2011-07-31 | 2011-07-31 | Low-voltage fusing switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202258964U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103247965A (en) * | 2013-05-02 | 2013-08-14 | 国家电网公司 | Ground connection device for charged replacement and lightning-protection system |
| CN105070579A (en) * | 2015-08-06 | 2015-11-18 | 大唐岩滩水力发电有限责任公司 | Outdoor high-voltage isolated switch |
| CN107068427A (en) * | 2017-02-14 | 2017-08-18 | 国网新疆电力公司伊犁供电公司 | Low voltage isolation switch |
| CN108511249A (en) * | 2018-06-06 | 2018-09-07 | 广东电网有限责任公司 | Moving contact and fuse cutout |
| CN110137019A (en) * | 2019-06-28 | 2019-08-16 | 瓯越电力科技有限公司 | A kind of movable touch knife device and its disconnecting switch |
-
2011
- 2011-07-31 CN CN2011202741749U patent/CN202258964U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103247965A (en) * | 2013-05-02 | 2013-08-14 | 国家电网公司 | Ground connection device for charged replacement and lightning-protection system |
| CN103247965B (en) * | 2013-05-02 | 2016-02-03 | 国家电网公司 | A kind of charged for replacement ground connecting device and lightning protection system |
| CN105070579A (en) * | 2015-08-06 | 2015-11-18 | 大唐岩滩水力发电有限责任公司 | Outdoor high-voltage isolated switch |
| CN107068427A (en) * | 2017-02-14 | 2017-08-18 | 国网新疆电力公司伊犁供电公司 | Low voltage isolation switch |
| CN108511249A (en) * | 2018-06-06 | 2018-09-07 | 广东电网有限责任公司 | Moving contact and fuse cutout |
| CN110137019A (en) * | 2019-06-28 | 2019-08-16 | 瓯越电力科技有限公司 | A kind of movable touch knife device and its disconnecting switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20150731 |
|
| EXPY | Termination of patent right or utility model |