CN203746674U - Dustproof cam switch - Google Patents
Dustproof cam switch Download PDFInfo
- Publication number
- CN203746674U CN203746674U CN201320880723.6U CN201320880723U CN203746674U CN 203746674 U CN203746674 U CN 203746674U CN 201320880723 U CN201320880723 U CN 201320880723U CN 203746674 U CN203746674 U CN 203746674U
- Authority
- CN
- China
- Prior art keywords
- contact
- cam
- switch
- dustproof
- pedestal
- 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 - Lifetime
Links
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 35
- 239000000428 dust Substances 0.000 abstract description 9
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000002411 adverse Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000003818 cinder Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Push-Button Switches (AREA)
Abstract
The utility model relates to a dustproof cam switch which comprises a contact head base, a cam extending into the contact head base, and a contact point mechanism arranged in the contact head base. The contact point mechanism includes a fixed contact point and a moving contact point matched with the fixed contact point. A gasket is arranged between the contact point mechanism and the contact head base. As the gasket is arranged between the fixed contact point and the contact head base of the dustproof cam switch, dust can be prevented from entering a gap between a fixed contact member and the contact head base, blockage and wear of the cam switch can be avoided, and the service life of the switch is prolonged.
Description
Technical field
The utility model relates to a kind of dustproof cam switch.
Background technology
Cam switch uses in various adverse circumstances (as construction site, Biohazard Waste Disposal, colliery, the place of northwest dust storm) environment, and dust easily enters in switch, is attached on contact, can cause switch obstructed; Sand, dust, cinder enter in switch, can hinder switch movable part motion, cause blocked portion, reduce switch useful life simultaneously.For preventing above-mentioned situation, present way is that cam switch is installed in the box with degree of protection both at home and abroad, or at the exterior nerd pack of cam switch, but the way of above-mentioned increase switch fitting has increased the use cost of switch, and installation wiring is very inconvenient.
Utility model content
The utility model be for overcome prior art exist the problems referred to above and a kind of cam switch that prevents that dust from entering is provided.
The technical scheme that the utility model is taked is: a kind of dustproof cam switch, comprise contact pedestal, stretch into the cam of contact pedestal and be arranged on the contact mechanism in described contact pedestal, the moving contact that described contact mechanism comprises fixed contact and matches with this fixed contact, be characterized in, between described contact mechanism and described contact pedestal, be provided with pad.
The dustproof cam switch of above-mentioned one, wherein, the upper surface of described contact pedestal offers the cam perforation of stretching into for described cam; On the upper surface of this contact pedestal, be also provided with a ring-type dust-proof cushion, the position of the central through hole of this ring-type dust-proof cushion is corresponding with the position of described cam perforation, described cam is successively through the central through hole of ring-type dust-proof cushion and the perforation of the cam of contact pedestal, the contact mechanism butt in lower end and the contact pedestal of this cam.
The dustproof cam switch of above-mentioned one, wherein, described pad is rubber sheet gasket.
The dustproof cam switch of above-mentioned one, wherein, described pad is arranged between fixed contact and contact pedestal.
Because the utility model has adopted above technical scheme, the technique effect of its generation is obvious:
1, the utility model arranges pad between fixed contact and contact pedestal, prevents that dust from entering the gap between fixed contact parts and contact pedestal, avoids cam switch blocked portion and wearing and tearing, has extended switch life;
2, the utility model arranges ring-type dust-proof cushion between cam and contact pedestal, prevents that extraneous dust from entering into cam switch inside by the gap between cam and contact pedestal; Make cam switch without using protection box and plastic jacket to use in adverse circumstances, reduced use cost and the volume of cam switch.
Brief description of the drawings
Fig. 1 is the cross-sectional schematic of a kind of dustproof cam switch of the utility model.
Fig. 2 is the vertical view of a kind of dustproof cam switch of the utility model.
Embodiment
Specific features of the present utility model and performance are further described by following embodiment and accompanying drawing thereof.
Refer to Fig. 1 and Fig. 2.According to the dustproof cam switch of the one of the utility model one embodiment, comprise contact pedestal 1, stretch into the cam 5 of contact pedestal and be arranged on the contact mechanism in contact pedestal 1, the moving contact 2-2 that this contact mechanism comprises fixed contact 2-1 and matches with this fixed contact, between this contact mechanism and contact pedestal 1, be provided with pad 4, in the present embodiment, pad 4 is rubber sheet gasket, and this rubber sheet gasket is arranged between fixed contact 2-1 and contact pedestal 1.
The upper surface of contact pedestal 1 offers the cam perforation 1-1 stretching into for cam 5; On the upper surface of this contact pedestal 1, be also provided with a ring-type dust-proof cushion 3, the position of the central through hole of this ring-type dust-proof cushion 3 is corresponding with the position of cam perforation 1-1, cam 5 is successively through the central through hole of ring-type dust-proof cushion and the perforation of the cam of contact pedestal, the contact mechanism butt in the lower end of this cam 5 and contact pedestal 1.
The utility model arranges ring-type dust-proof cushion 3 between cam 5 and contact pedestal 1, prevent that extraneous dust from entering into cam switch inside by the gap between cam 5 and contact pedestal 1, make cam switch without using protection box and plastic jacket to use in adverse circumstances, reduced use cost and the volume of cam switch; The present embodiment is by between fixed contact 2-1 and contact pedestal 1, pad 4 being set, and prevention dust enters the gap of fixed contact parts and contact pedestal; Avoid cam switch blocked portion and wearing and tearing, extended switch life.
More than describe is further illustrating of the utility model being done in conjunction with embodiment and accompanying drawing.But; the utility model obviously can be implemented with multiple other method that is different from this description; those skilled in the art can promote, deduce according to actual service condition without prejudice to the utility model content in the situation that; therefore, the content of above-mentioned specific embodiment should not limit the really protection range of regulation of the utility model.
Claims (4)
1. a dustproof cam switch, comprise contact pedestal, stretch into the cam of contact pedestal and be arranged on the contact mechanism in described contact pedestal, the moving contact that described contact mechanism comprises fixed contact and matches with this fixed contact, it is characterized in that, between described contact mechanism and described contact pedestal, be provided with pad.
2. the dustproof cam switch of one according to claim 1, is characterized in that, the upper surface of described contact pedestal offers the cam perforation of stretching into for described cam;
On the upper surface of this contact pedestal, be also provided with a ring-type dust-proof cushion, the position of the central through hole of this ring-type dust-proof cushion is corresponding with the position of described cam perforation, described cam is successively through the central through hole of ring-type dust-proof cushion and the perforation of the cam of contact pedestal, the contact mechanism butt in lower end and the contact pedestal of this cam.
3. the dustproof cam switch of one according to claim 1, is characterized in that, described pad is rubber sheet gasket.
4. the dustproof cam switch of one according to claim 1, is characterized in that, described pad is arranged between fixed contact and contact pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320880723.6U CN203746674U (en) | 2013-12-30 | 2013-12-30 | Dustproof cam switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320880723.6U CN203746674U (en) | 2013-12-30 | 2013-12-30 | Dustproof cam switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203746674U true CN203746674U (en) | 2014-07-30 |
Family
ID=51346441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320880723.6U Expired - Lifetime CN203746674U (en) | 2013-12-30 | 2013-12-30 | Dustproof cam switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203746674U (en) |
-
2013
- 2013-12-30 CN CN201320880723.6U patent/CN203746674U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140730 |
|
| CX01 | Expiry of patent term |