CN208834935U - A kind of explosion-proof type limit switch - Google Patents
A kind of explosion-proof type limit switch Download PDFInfo
- Publication number
- CN208834935U CN208834935U CN201821795421.8U CN201821795421U CN208834935U CN 208834935 U CN208834935 U CN 208834935U CN 201821795421 U CN201821795421 U CN 201821795421U CN 208834935 U CN208834935 U CN 208834935U
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- Prior art keywords
- explosion
- rotating axis
- axis component
- inner housing
- proof type
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Abstract
The utility model discloses a kind of explosion-proof type limit switches, including hemispherical cloche, protruding shaft is provided in the hemispherical cloche, the protruding shaft is mounted on position among the lower section of instruction ball, the protruding shaft is connect with rotating axis component, the rotating axis component is provided with the intermediate position of inner housing, the inner housing is connect with cloche by cross-shaped spherical screw, the inner housing two sides are symmetrically arranged with threaded hole, the threaded hole is linked together inner housing and outer housing by soket head cap screw, the rotating axis component is connect with microswitch component, and the lower end of rotating axis component extends out from the bottom of outer housing, cable entry is provided on the outer housing.A kind of explosion-proof type limit switch provided by the utility model, it is aesthetic in appearance, there are very strong mechanical strength and corrosion resistance, be suitable for volatile hazardous environment, safety coefficient is high.
Description
Technical field
The utility model relates to switching technique field more particularly to a kind of explosion-proof type limit switches.
Background technique
Limit switch is also known as travel switch, and may be mounted at opposing stationary object, (such as fixed frame, doorframe, abbreviation are quiet
Object) on or movement object (such as drive a vehicle, door, abbreviation animal) on.When animal is close to still life, the connecting rod driving of switch is opened
The contact of pass causes the junction closure of contact disjunction or the disconnection of closure.It goes to control by the change of make and break contact opening and closing state
Circuit and motor.In actual production, limit switch is mounted on prearranged position, when loaded on manufacturing machine moving component
On module impact stroke switch when, limit switch contact movement, realize the switching of circuit.Therefore, travel switch is a kind of
According to the travel position of moving component, the electric appliance of switching circuit, its action principle are similar with button.Limit switch is used extensively
In all kinds of lathes and hoisting machinery, to control its stroke, carry out terminal position limitation protection.It is also sharp in the control circuit of elevator
With travel switch come the speed of control switch gate, the limit of automatic opening and closing door, the upper and lower limits of carriage are protected.Explosion-proof limit
Switch is in order to which adverse circumstances user is specially designed, that there is safety coefficients is low for explosion-proof type limit switch in the prior art,
Technological deficiency poor for applicability.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of explosion-proof type limit switch.
Technical solutions of the utility model are as follows:
A kind of explosion-proof type limit switch, including hemispherical cloche are provided with protruding shaft in the hemispherical cloche, described
Protruding shaft is mounted on position among the lower section of instruction ball, and the protruding shaft is connect with rotating axis component, and the rotating axis component is provided with inner casing
The intermediate position of body, the inner housing are connect with cloche by cross-shaped spherical screw, and the inner housing two sides are symmetrically arranged with
Threaded hole, the threaded hole are linked together inner housing and outer housing by soket head cap screw, the rotating axis component with it is miniature
Switch block connection, and the lower end of rotating axis component extends out from the bottom of outer housing, is provided with cable on the outer housing
Introducing device.
Specifically, the contact site of inner housing is provided with O-ring on the inside of the bottom end of the cloche.
Specifically, the microswitch component is electrically connected with earthing screw, and the earthing screw is arranged on outer housing.
Specifically, the lower end of the rotating axis component and the contact site of outer housing are provided with split washer.
The utility model has the beneficial effects that:
A kind of explosion-proof type limit switch provided by the utility model, it is aesthetic in appearance, there is very strong mechanical strength and anticorrosive
Performance is suitable for volatile hazardous environment, small in size, and by the setting of cam, transmission is convenient, and rotation angle is big, especially
The inside of shell is arranged in microswitch component, and safety coefficient is high, has excellent explosion-proof performance.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawing.
Fig. 1 is a kind of schematic diagram of internal structure of explosion-proof type limit switch of the utility model；
Fig. 2 is a kind of overlooking structure diagram of explosion-proof type limit switch of the utility model.
Wherein: hemispherical cloche -1, protruding shaft -2 indicate ball -3, rotating axis component -4, inner housing -5, cross-shaped spherical screw -
6, soket head cap screw -7, outer housing -8, microswitch component -9, cable entry -10, O-ring -11, earthing screw -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 explosion-proof type limit switch, including hemispherical cloche 1, the interior setting of the hemispherical cloche 1
There is protruding shaft 2, the protruding shaft 2 is mounted on position among the lower section of instruction ball 3, and the protruding shaft 2 is connect with rotating axis component 4, and described turn
Shaft member 4 is provided with the intermediate position of inner housing 5, and the inner housing 5 is connect with cloche 1 by cross-shaped spherical screw 6, described
5 two sides of inner housing are symmetrically arranged with threaded hole, and inner housing 5 and outer housing 8 are connected to by the threaded hole by soket head cap screw 7
Together, the rotating axis component 4 is connect with microswitch component 9, and the lower end of rotating axis component 4 extends from the bottom of outer housing 8
Out, cable entry 10 is provided on the outer housing 8.
Specifically, the contact site of inner housing 5 is provided with O-ring 11 on the inside of the bottom end of the cloche 1.
Specifically, the microswitch component 9 is electrically connected with earthing screw 12, and the earthing screw 12 is arranged in outer housing
On 8.
Specifically, the lower end of the rotating axis component 4 and the contact site of outer housing 8 are provided with split washer, in attached drawing not
It shows.
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 (4)
1. a kind of explosion-proof type limit switch, which is characterized in that including hemispherical cloche, be provided in the hemispherical cloche
Protruding shaft, the protruding shaft are mounted on position among the lower section of instruction ball, and the protruding shaft is connect with rotating axis component, and the rotating axis component is set
It is equipped with the intermediate position of inner housing, the inner housing is connect with cloche by cross-shaped spherical screw, the inner housing two sides pair
Title is provided with threaded hole, and the threaded hole is linked together inner housing and outer housing by soket head cap screw, the shaft
Part is connect with microswitch component, and the lower end of rotating axis component extends out from the bottom of outer housing, is set on the outer housing
It is equipped with cable entry.
2. a kind of explosion-proof type limit switch according to claim 1, which is characterized in that on the inside of the bottom end of the cloche with it is interior
The contact site of shell is provided with O-ring.
3. a kind of explosion-proof type limit switch according to claim 1, which is characterized in that the microswitch component and ground connection spiral shell
Nail electrical connection, the earthing screw are arranged on outer housing.
4. a kind of explosion-proof type limit switch according to claim 1, which is characterized in that the lower end of the rotating axis component and shell
The contact site of body is provided with split washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821795421.8U CN208834935U (en) | 2018-11-01 | 2018-11-01 | A kind of explosion-proof type limit switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821795421.8U CN208834935U (en) | 2018-11-01 | 2018-11-01 | A kind of explosion-proof type limit switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208834935U true CN208834935U (en) | 2019-05-07 |
Family
ID=66320067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821795421.8U Active CN208834935U (en) | 2018-11-01 | 2018-11-01 | A kind of explosion-proof type limit switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208834935U (en) |
-
2018
- 2018-11-01 CN CN201821795421.8U patent/CN208834935U/en active Active
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