CN208834934U - A kind of water proof limit switch - Google Patents
A kind of water proof limit switch Download PDFInfo
- Publication number
- CN208834934U CN208834934U CN201821791333.0U CN201821791333U CN208834934U CN 208834934 U CN208834934 U CN 208834934U CN 201821791333 U CN201821791333 U CN 201821791333U CN 208834934 U CN208834934 U CN 208834934U
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- CN
- China
- Prior art keywords
- pedestal
- box body
- flange
- screw
- waterproof box
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- 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.)
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Abstract
The utility model discloses a kind of water proof limit switch, including indicating ball, indicate that the underface insertion on the inside of ball is equipped with camshaft, the junction of camshaft and cover is provided with split washer, cover is fixedly connected with pedestal by internal-flange bolt structure, the junction of cover and pedestal is provided with O-ring, O-ring is located at below the top of pedestal, hemispherical cloche is provided with above the instruction ball, the bottom end of the cloche is provided with flange, the axial direction of flange is provided with the threaded hole of perforation, the threaded hole is fixedly connected with waterproof box body by screw, the contact site and waterproof box body of waterproof box body and screw and the contact site of flange are provided with waterproof gasket, the lower part of the waterproof box body is connected by screw on the side of pedestal, the lower part of the waterproof box body and the junction of pedestal and screw are provided with waterproof Gasket.The utility model waterproof performance is excellent, and during use, inner body is less prone to loose phenomenon.
Description
Technical field
The utility model relates to switching technique field more particularly to a kind of water proof limit switch.
Background technique
Switch is the device that people often use in daily life and work.It can be by it according to the purposes of switch
It is divided into Multiple Type, limit switch is exactly that one of which is widely used in the machinery equipments such as all kinds of lathes and hoisting machinery, is used
With the switch for controlling its stroke, carrying out terminal position limitation protection.For example, in the control circuit of elevator, also using limit switch come
The limit of the speed, automatic opening and closing door of control switch gate, the upper and lower limits protection of carriage.Thereby it is ensured that used limit
It is considerable that switch, which has good service performance,.The working environment of limit switch sometimes is more severe, needs one
The occasion that a little air humiditys are big, vibration is violent uses, under these operating conditions, easily infiltration, and internal part inside limit switch
The phenomenon that being easy to appear loosening.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of water proof limit switch.
Technical solutions of the utility model are as follows:
A kind of water proof limit switch, including instruction ball indicate that the underface insertion on the inside of ball is equipped with camshaft, described convex
The junction of wheel shaft and cover is provided with split washer, and the cover is fixedly connected with pedestal by internal-flange bolt structure, cover
The junction of pedestal is provided with O-ring, the O-ring is located at below the top of pedestal, is provided with above the instruction ball
Hemispherical cloche, the bottom end of the cloche are provided with flange, and the axial direction of the flange is provided with the threaded hole of perforation, institute
State threaded hole and waterproof box body be fixedly connected with by screw, the contact site and waterproof box body of the waterproof box body and screw and
The contact site of flange is provided with waterproof gasket, and the lower part of the waterproof box body is connected by screw on the side of pedestal,
The lower part of the waterproof box body and the junction of pedestal and screw are provided with waterproof gasket.
Specifically, O-ring is provided between the flange inner recess and cover.
Specifically, the bottom of the pedestal is provided with spline cam shaft component, the spline cam shaft component and pedestal
Junction is provided with split washer.
The utility model has the beneficial effects that:
A kind of water proof limit switch provided by the utility model, by be arranged waterproof box body, can effectively avoid steam to
It is penetrated into limit switch, while cloche and pedestal are linked together by waterproof box body, are improved in limit switch use process
Stability can effectively avoid under violent vibration, and the phenomenon that inner body loosening occurs in limit switch.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawing.
Fig. 1 is a kind of structural schematic diagram of water proof limit switch of the utility model,
Wherein: instruction ball -1, camshaft -2, cover -3, split washer -4, pedestal -5, O-ring -6, cloche -7 are convex
Edge -8, spiral shell-nail 9, waterproof box body -10, waterproof gasket -11, spline cam shaft component -12.
Specific embodiment
Below with reference to the attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu is fully described by, it is clear that and described embodiment is only a part of the embodiment of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Refering to fig. 1, a kind of water proof limit switch, including instruction ball 1, the underface insertion of 1 inside of instruction ball are equipped with convex
The junction of wheel shaft 2, the camshaft 2 and cover 3 is provided with split washer 4, and the cover 3 passes through internal-flange bolt with pedestal 5
Structure is fixedly connected, and the junction of cover 3 and pedestal 5 is provided with O-ring 6, and the O-ring 6 is located at below the top of pedestal 5,
The top of the instruction ball 1 is provided with hemispherical cloche 7, and the bottom end of the cloche 7 is provided with flange 8, the flange 8
It is axially provided with the threaded hole of perforation, the threaded hole is fixedly connected with waterproof box body 10, the waterproof box body 10 by screw 9
Waterproof gasket 11, the compartment are provided with the contact site and waterproof box body 10 of screw 9 and the contact site of flange 8
The lower part of body 10 is connected on the side of pedestal 5 by screw 9, the lower part of the waterproof box body 10 and the company of pedestal 5 and screw 9
The place of connecing is provided with waterproof gasket 11.
Specifically, O-ring 6 is provided between the 8 inside recess of flange and cover.
Specifically, the bottom of the pedestal 5 is provided with spline cam shaft component 12, the spline cam shaft component 12 and bottom
The junction of seat 5 is provided with split washer 4.
Above-mentioned accompanying drawings and embodiments are merely to illustrate the utility model, and any technical field those of ordinary skill is to it
The appropriate changes or modifications done all should be regarded as not departing from the utility model patent scope.
Claims (3)
1. a kind of water proof limit switch, including instruction ball indicate that the underface insertion on the inside of ball is equipped with camshaft, the cam
The junction of axis and cover is provided with split washer, which is characterized in that the cover is fixed with pedestal by internal-flange bolt structure
The junction of connection, cover and pedestal is provided with O-ring, and the O-ring is located at below the top of pedestal, described to indicate the upper of ball
Side is provided with hemispherical cloche, and the bottom end of the cloche is provided with flange, and the axial direction of the flange is provided with perforation
Threaded hole, the threaded hole are fixedly connected with waterproof box body by screw, the contact site of the waterproof box body and screw and
The contact site of waterproof box body and flange is provided with waterproof gasket, and the lower part of the waterproof box body is connected by screw in pedestal
Side on, the junction of the lower part of the waterproof box body and pedestal and screw is provided with waterproof gasket.
2. a kind of water proof limit switch according to claim 1, it is characterised in that: the flange inner recess and cover it
Between be provided with O-ring.
3. a kind of water proof limit switch according to claim 1, it is characterised in that: the bottom of the pedestal is provided with spline protruded
The junction of axle portion, the spline cam shaft component and pedestal is provided with split washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821791333.0U CN208834934U (en) | 2018-11-01 | 2018-11-01 | A kind of water proof limit switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821791333.0U CN208834934U (en) | 2018-11-01 | 2018-11-01 | A kind of water proof limit switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208834934U true CN208834934U (en) | 2019-05-07 |
Family
ID=66319846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821791333.0U Active CN208834934U (en) | 2018-11-01 | 2018-11-01 | A kind of water proof limit switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208834934U (en) |
-
2018
- 2018-11-01 CN CN201821791333.0U patent/CN208834934U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |