CN2331072Y - Special switch for lighting lamp of small tractor - Google Patents
Special switch for lighting lamp of small tractor Download PDFInfo
- Publication number
- CN2331072Y CN2331072Y CN 97233510 CN97233510U CN2331072Y CN 2331072 Y CN2331072 Y CN 2331072Y CN 97233510 CN97233510 CN 97233510 CN 97233510 U CN97233510 U CN 97233510U CN 2331072 Y CN2331072 Y CN 2331072Y
- Authority
- CN
- China
- Prior art keywords
- housing
- binding post
- contact seat
- special switch
- 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 relates to a special switch for a lighting lamp of a small tractor, which is provided with a casing, a binding post fixing plate, a movable contact seat, a pull handle and a positioning steel ball arranged below the contact seat. The special switch for a lighting lamp of a small tractor is characterized in that the special switch for a lighting lamp of a small tractor is only provided with three binding posts, the longitudinal sections of which form an L shape and a contact piece arranged on the contact seat is a rectangular metal piece which is provided with three spherical surface convex contact points. The utility model uses one switch to control two loops, and has the advantages of convenient operation and easy installation. The utility model is especially suitable for small four-wheel tractors which adopt a single-phase power supply lighting system.
Description
The utility model belongs to the electric switch technical field with linearly operating.
At present the front and back illuminating lamp of tractor with small four wheels mostly adopts the single phase power supply system, utilizes two single grade of mechanical switchs to control its loop, not only install cumbersome, production cost height, and operation inconvenience.
The purpose of this utility model is that a kind of special switch of installing and using convenient control by the tractor with small four wheels illuminating lamp of single-phase generator power supply will be provided.
The technical solution of the utility model is: it has housing and is fixed on the baffle plate of housing front end, and the binding post fixed head is installed above the housing, and the housing rear end is fixed with screw head, and nut is housed on the screw head.The movable contact seat is housed in housing, in the blind hole below the movable contact seat spring and steel ball is housed, three grooves are arranged at the bottom of housing, and the rear portion of movable contact seat is connected with pull bar, and the end in addition of pull bar passes the centre bore of screw head and is equipped with and draws handle.Its design feature is three longitudinal cross-sections to be installed be shaped as L shaped binding post on the binding post fixed head, and volute spring and contact blade are installed on the sliding contact seat, and the contact blade upper surface has three bump contact.
The utility model has the advantages that: utilize two loops of a switch control, easy to operate, reliable in action is installed easily, has reduced the switch installing hole, has reduced production cost.
Fig. 1 is a middle longitudinal section of the present utility model, shows its overall structure;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is a stereogram of the present utility model;
Fig. 4 is the vertical view of contact blade;
Fig. 5 is the left view of Fig. 4.
In the embodiment that accompanying drawing provides, housing 1 and baffle plate 2 select for use cold-reduced sheet to make, and binding post fixed head 3 is by plastic production, and the three is fixed together by the claw on the housing 1.The rear end of housing 1 is fixed with center screw head with holes 7, and nut 8 and packing ring 16 are housed on it, is used for fixing on tractor.On binding post fixed head 3, be embedded with three longitudinal cross-sections and be shaped as L shaped binding post 4,5,6, the movable contact seat 11 that bakelite is made is housed in housing 1.In the blind hole below the movable contact seat 11 spring 15 and steel ball 14 are housed, three grooves that are on the same straight line are arranged at the bottom of housing 1, are used from the location of movable contact seat 11 with steel ball 14 1.Volute spring 12 and contact blade 13 are housed in the groove on movable contact seat 11, contact blade 13 is a rectangular metal sheet, there is the downward flanging that is used to lead on both sides, its upper punch be pressed with three respectively with the corresponding spherical surface hill contact of binding post 4,5,6 basal surface positions.The rear portion of movable contact seat 11 is connected with pull bar 10, and the end in addition of pull bar 10 passes the centre bore of screw head 7 and is equipped with and draws 9.
Operation principle of the present utility model is: when steel ball 14 is positioned at housing 1 bottom during last groove, contact blade 13 does not all contact with each binding post, and two loops are all obstructed; Draw 9, move behind the movable contact seat 11, when steel ball 14 mediates groove, bump contact above the contact blade 13 is connected binding post 4,5, open a loop this moment, continue to draw, when steel ball 14 is positioned at last groove 9, contact blade 13 is all connected three binding posts 4,5,6, and promptly this moment, two loops were connected simultaneously.
Claims (2)
1, a kind of small tractor illuminating lamp special switch, have housing (1) and be fixed on the baffle plate (2) of housing (1) front end, binding post fixed head (3) is installed above the housing (1), the rear end of housing (1) is installed with screw head (7), nut (8) is housed on the screw head (7), movable contact seat (11) is housed in housing (1), in the blind hole below the movable contact seat (11) spring (15) and steel ball (14) are housed, three grooves are arranged at the bottom of housing (1), the rear portion of movable contact seat (11) is connected with pull bar (10), the end in addition of pull bar (10) passes the centre bore of screw head (7) and is equipped with and draws (9), it is characterized in that: three longitudinal cross-sections are installed on binding post fixed head (3) are shaped as L shaped binding post (4) (5) (6), volute spring (12) and contact blade (13) are installed on movable contact seat (11), and the upper surface of contact blade (13) has three bump contact.
2, according to the described small tractor illuminating lamp of claim 1 special switch, it is characterized in that contact blade (13) is rectangular metal sheet, there is downward flanging on both sides, and its upper punch is pressed with three corresponding with the binding post basal surface position respectively spherical surface hill contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97233510 CN2331072Y (en) | 1997-06-21 | 1997-06-21 | Special switch for lighting lamp of small tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97233510 CN2331072Y (en) | 1997-06-21 | 1997-06-21 | Special switch for lighting lamp of small tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2331072Y true CN2331072Y (en) | 1999-07-28 |
Family
ID=33945069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97233510 Expired - Fee Related CN2331072Y (en) | 1997-06-21 | 1997-06-21 | Special switch for lighting lamp of small tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2331072Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229786A (en) * | 2016-08-19 | 2016-12-14 | 陈惠金 | A kind of hydraulic tongs of scalable aperture size |
| CN107616820A (en) * | 2017-09-18 | 2018-01-23 | 河南科技大学第附属医院 | Surgery haemostatic clamp |
| CN110056779A (en) * | 2019-05-20 | 2019-07-26 | 中铁建工集团有限公司 | The automatic cutting device of water flow |
-
1997
- 1997-06-21 CN CN 97233510 patent/CN2331072Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229786A (en) * | 2016-08-19 | 2016-12-14 | 陈惠金 | A kind of hydraulic tongs of scalable aperture size |
| CN107616820A (en) * | 2017-09-18 | 2018-01-23 | 河南科技大学第附属医院 | Surgery haemostatic clamp |
| CN110056779A (en) * | 2019-05-20 | 2019-07-26 | 中铁建工集团有限公司 | The automatic cutting device of water flow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |