CN202729683U - Travel switch for electric hoists - Google Patents
Travel switch for electric hoists Download PDFInfo
- Publication number
- CN202729683U CN202729683U CN 201220383571 CN201220383571U CN202729683U CN 202729683 U CN202729683 U CN 202729683U CN 201220383571 CN201220383571 CN 201220383571 CN 201220383571 U CN201220383571 U CN 201220383571U CN 202729683 U CN202729683 U CN 202729683U
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- CN
- China
- Prior art keywords
- contact
- connector lug
- contact terminal
- fuse
- pull bar
- 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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- Switch Cases, Indication, And Locking (AREA)
Abstract
The utility model belongs to travel switches, and particularly relates to a travel switch for electric hoists, which has a simple structure, is convenient and practical, is convenient for wiring, and has low falling possibility of a pull rod. The travel switch includes a cover matched with a housing, wherein a core is arranged inside the housing; one end of the core is connected with a first connector lug, a second connector lug, a third connector lug and a fourth connector lug respectively, which are connected with a first contact terminal, a second contact terminal, a third contact terminal and a fourth contact terminal respectively; the first contact terminal and the fourth contact terminal are fixed at one end of the core, near to the first connector lug; the second contact terminal and the third contact terminal are fixed at the other end of the core; the other end of the core is provided with an opening matched with the pull rod; one end of the pull rod is connected with one end of the core through a bottom spring; the other end of the pull rod penetrates through the housing; and the pull rod is provided with a movable contact terminal mounted between the first contact terminal and the second contact terminal. The utility model has the advantages that the travel switch has a simple structure, is convenient and practical, is convenient for wiring, and has low falling possibility of the pull rod.
Description
Technical field
The utility model belongs to travel switch, be specifically related to a kind of simple in structure, convenient and practical, the used for electric hoist travel switch of easy-to-connect and pull bar difficult drop-off.
Technical background
Lower column defects often appears in the used for electric hoist travel switch on the market: 1, the on-insulated potential safety hazard that occurs easily of shell; 2, the internal material of travel switch is damaged easily; 3, the fuse volume of travel switch inside is excessive, and is very inconvenient during installation; 4, day heat or use for a long time back stay easily loosening causes pull bar to come off.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art and provides a kind of simple in structure, convenient and practical, the used for electric hoist travel switch of easy-to-connect and pull bar difficult drop-off.
The purpose of this utility model is achieved in that and comprises the lid suitable with shell, the inside of described shell is provided with fuse, one end of described fuse is respectively arranged with the first connector lug, the second connector lug, the 3rd connector lug and the 4th connector lug, described the first connector lug, the second connector lug, the 3rd connector lug and the 4th connector lug respectively with the first contact, the second contact, the 3rd contact links to each other with the 4th contact; Described the first contact and the 4th contact are fixedly mounted on fuse near an end of the first connector lug, and described the second contact and the 3rd contact are fixedly mounted on the other end of fuse; The other end of described fuse is provided with the opening suitable with pull bar, and described pull bar one end links to each other with the end of fuse near the first connector lug by the bottom spring; The other end of described pull bar passes shell, is arranged on the outside of shell; Described pull bar is set with moving contact between the first contact and the second contact, described pull bar is set with spring between fuse and shell; Described moving contact is two contacts; Two contacts of described moving contact are suitable with the first contact and the 4th contact respectively; Two contacts of described moving contact are suitable with the second contact and the 3rd contact respectively.Be set with spring leaf on the pull bar between described spring and the fuse.
The utlity model has simple in structure, convenient and practical, the advantage of easy-to-connect and pull bar difficult drop-off.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is another structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, 2, the utility model comprises the lid 2 suitable with shell 1, the inside of described shell 1 is provided with fuse 3, one end of described fuse 3 is respectively arranged with the first connector lug 4, the second connector lug 5, the 3rd connector lug 6 and the 4th connector lug 7, described the first connector lug 4, the second connector lug 5, the three connector lugs 6 and the 4th connector lug 7 link to each other with the 4th contact 10 with the first contact 8, the second contact 9, the three contacts 11 respectively; Described the first contact 8 and the 4th contact 10 are fixedly mounted on fuse 3 near an end of the first connector lug 4, and described the second contact 9 and the 3rd contact 11 are fixedly mounted on the other end of fuse 3; The other end of described fuse 3 is provided with the opening suitable with pull bar 16, and described pull bar 16 1 ends link to each other with the end of fuse 3 near the first connector lugs 4 by bottom spring 12; The other end of described pull bar 16 passes shell 1, is arranged on the outside of shell 1; Described pull bar 16 is set with moving contact 13 between the first contact 8 and the second contact 9, described pull bar 16 is set with spring 14 between fuse 3 and shell 1; Described moving contact 13 is two contacts; Two contacts of described moving contact 13 are suitable with the first contact 8 and the 4th contact 10 respectively; Two contacts of described moving contact 13 are suitable with the second contact 9 and the 3rd contact 11 respectively.Be set with spring leaf 15 on the pull bar 16 between described spring 14 and the fuse 3.
Principle of work of the present utility model is: when pushing drawing rod 16 moved to shell 1, two contacts of moving contact 13 linked to each other with the 3rd contact 11 with the second contact 9 respectively, and this moment, the utility model was in running order, and the utility model is in "on" position; When pushing drawing rod 16 during away from shell 1, two contacts of moving contact 13 link to each other with the 4th contact 10 with the first contact 8 respectively, and this moment, the utility model was in the outage off position.The material of described shell of the present utility model 1 and lid 2 is plastics.
Claims (2)
1. used for electric hoist travel switch, comprise the lid (2) suitable with shell (1), it is characterized in that: the inside of described shell (1) is provided with fuse (3), one end of described fuse (3) is respectively arranged with the first connector lug (4), the second connector lug (5), the 3rd connector lug (6) and the 4th connector lug (7), described the first connector lug (4), the second connector lug (5), the 3rd connector lug (6) and the 4th connector lug (7) respectively with the first contact (8), the second contact (9), the 3rd contact (11) links to each other with the 4th contact (10); Described the first contact (8) and the 4th contact (10) are fixedly mounted on fuse (3) near an end of the first connector lug (4), and described the second contact (9) and the 3rd contact (11) are fixedly mounted on the other end of fuse (3); The other end of described fuse (3) is provided with the opening suitable with pull bar (16), and described pull bar (16) one ends link to each other with the end of fuse (3) near the first connector lug (4) by bottom spring (12); The other end of described pull bar (16) passes the outside that shell (1) is arranged on shell (1); Described pull bar (16) is set with moving contact (13) between the first contact (8) and the second contact (9), described pull bar (16) is set with spring (14) between fuse (3) and shell (1); Described moving contact (13) is two contacts; Two contacts of described moving contact (13) are suitable with the first contact (8) and the 4th contact (10) respectively; Two contacts of described moving contact (13) are suitable with the second contact (9) and the 3rd contact (11) respectively.
2. used for electric hoist travel switch according to claim 1 is characterized in that: be set with spring leaf (15) on the pull bar (16) between described spring (14) and the fuse (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220383571 CN202729683U (en) | 2012-07-25 | 2012-07-25 | Travel switch for electric hoists |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220383571 CN202729683U (en) | 2012-07-25 | 2012-07-25 | Travel switch for electric hoists |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202729683U true CN202729683U (en) | 2013-02-13 |
Family
ID=47655405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220383571 Expired - Fee Related CN202729683U (en) | 2012-07-25 | 2012-07-25 | Travel switch for electric hoists |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202729683U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464883A (en) * | 2014-09-14 | 2016-04-06 | 张玉宝 | Energy extracting and conversion device for singular floating body rope wheel |
-
2012
- 2012-07-25 CN CN 201220383571 patent/CN202729683U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464883A (en) * | 2014-09-14 | 2016-04-06 | 张玉宝 | Energy extracting and conversion device for singular floating body rope wheel |
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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: 20130213 Termination date: 20140725 |
|
| EXPY | Termination of patent right or utility model |