CN202855625U

CN202855625U - Tilt switch casing

Info

Publication number: CN202855625U
Application number: CN 201220539712
Authority: CN
Inventors: 周添铭
Original assignee: DARI SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: DARI SCIENCE AND TECHNOLOGY Co Ltd
Priority date: 2012-10-22
Filing date: 2012-10-22
Publication date: 2013-04-03
Anticipated expiration: 2022-10-22

Abstract

The utility model relates to a tilt switch casing used for mounting a photoelectric set and at least a rolling assembly. The photoelectric set realizes optical signal emission and reception along an optical axis. The casing comprises a first ring surface and a second ring surface which encircle one axis and define a chamber, wherein the first ring surface is near one end of the chamber and has an included angle greater than 90 DEG with tangent line of the axis, the second ring surface and tangent line of the axis have an included angle smaller or equal to 90 DEG, the chamber is used for accommodating the rolling assembly to enable the rolling assembly to make the first ring surface and the second ring surface roll between a disconnection position blocking the optical axis and a connection position disengaging the optical axis, the rolling assembly is enabled to not generate obstruction phenomenon by utilizing the relatively open included angle of the first ring surface when the casing inclines, and the rolling assembly is enabled to smoothly disengage from the optical axis according to pre-set inclination by utilizing a relatively converged included angle of the second ring surface, and thereby sensitivity and smoothness during motion are improved.

Description

The housing of tilt switch

Technical field

The utility model relates to a kind of tilt switch, particularly relates to a kind of housing that utilizes angle to change the tilt switch that reaches the open and close effect.

Background technology

Consult Fig. 1, take general tilt switch 1 as example, consist predominantly of a housing 11, relatively be installed in an optical transmitting set 12 and an optical receiver 13 in this housing 11, reach a ball 14.This housing 11 has around an axis X and defines an annular conical surface 111 of an alcove 110, and runs through two ducts 112 of 111 liang of relative positions of this annular conical surface along an optical axis L direction vertical with this axis X.This optical transmitting set 12 is launched light beams by aforementioned duct 112 towards this optical receiver 13 along this optical axis L direction.This ball 14 is contained in this alcove 110.This annular conical surface 111 is preset with the angle theta of one 90 degree.

During normal condition, this ball 14 can be trapped in this alcove 110, be positioned at the position of blocking-up optical axis L, making light beam be hampered by this ball 14 forms and opens circuit and be " OFF " state, when this housing 11 is subject to External Force Acting and tilts, this ball 14 will be at these housing 11 angles of inclination 〉=during bevel angle α, follow this annular conical surface 111 to be rolled into and be positioned at the position that breaks away from this optical axis L, make light beam form the conducting loop by this alcove 110 and be " ON " state, whereby, reach the effect of " ON/OFF " switch control.

Because aforementioned angle theta; bevel angle α relate to this tilt switch 1 when tilting how many angles with regard to the control apparatus articles for use produce action as: outage; therefore; generally speaking; for the sake of security; can not preset too large angle; yet; can find in practice; when this angle theta≤90 were spent, this ball 14 usually can be because of being loop contacts with annular conical surface 111, and by these annular conical surface 111 clampings; jam is between the angle theta of this annular conical surface 111; cause this ball 14 can't break away from this optical axis L, and can not produce the effect of " ON/OFF " switch control, the situation that action is insensitive even lost efficacy is arranged.

Summary of the invention

The purpose of this utility model be to provide a kind of can promote action the time sensitivity and the housing of the tilt switch of smoothness.

The housing of tilt switch of the present utility model, be used for installing a photoelectricity group, and at least one rolling assembly, this photoelectricity group is along an optical axis emission and receive the light signal, this housing comprises around an axis and defines first anchor ring and second anchor ring of a cavity, this first anchor ring is close to this cavity one end and spends greater than 90 by the tangent line angle of this axis, this second anchor ring is spent less than or equal to 90 by the tangent line angle of this axis, this cavity is accommodating for this rolling assembly, makes this rolling assembly follow this first anchor ring and this second anchor ring to roll between a via positions of the off position that stops optical axis and disengaging optical axis.

The housing of tilt switch of the present utility model, this first anchor ring is cancave cambered surface or annular conical surface.

Less than or equal to 180 degree, angle circle of this second anchor ring is in 20～90 degree greater than 90 degree for the housing of tilt switch of the present utility model, the angle of this first anchor ring.

The housing of tilt switch of the present utility model, this optical axis is vertical with this axis.

The housing of tilt switch of the present utility model, this housing also have contiguous this cavity other end and around the 3rd anchor ring of this axis.

The housing of tilt switch of the present utility model, this housing have mutually involutory and load a shell block and a cap of this photoelectricity group, and this first anchor ring, the second anchor ring, the 3rd anchor ring and this cavity are formed on this shell block.

The housing of tilt switch of the present utility model, this optical axis and this dead in line.

The housing of tilt switch of the present utility model, this housing have mutually involutory and load a shell block and a cap of this photoelectricity group, and are contained between this shell block and this cap and are formed with an inner casing of this first anchor ring, this second anchor ring and this cavity.

The beneficial effects of the utility model are: with the openr angle of this first anchor ring, make this rolling assembly can be when this housing tilts, can not produce the phenomenon of jam, and the angle that can restrain with this second anchor ring, make this rolling assembly break away from smoothly optical axis according to default angle of inclination, and then promote sensitivity and smoothness when moving.

Description of drawings

Fig. 1 is a cutaway view, and general tilt switch is described;

Fig. 2 is a cutaway view, and one first preferred embodiment of the housing of the utility model one tilt switch is described;

Fig. 3 is a cutaway view of a shell block in this first preferred embodiment;

Fig. 4 is a cutaway view, illustrates that a rolling assembly follows one first anchor ring to roll in this first preferred embodiment;

Fig. 5 is a cutaway view, illustrates that this rolling assembly follows one second anchor ring to roll in this first preferred embodiment;

Fig. 6 is a cutaway view, illustrates that this rolling assembly is stable at an anchor ring in this first preferred embodiment;

Fig. 7 is a cutaway view, and one second preferred embodiment of the housing of the utility model one tilt switch is described;

Fig. 8 is a cutaway view, illustrates that a rolling assembly follows one first anchor ring to roll in this second preferred embodiment;

Fig. 9 is a cutaway view, illustrates that this rolling assembly follows one second anchor ring to roll in this second preferred embodiment; And

Figure 10 is a cutaway view, and one the 3rd preferred embodiment of the housing of the utility model one tilt switch is described.

Embodiment

Below in conjunction with drawings and Examples the utility model is elaborated.

Consult Fig. 2, Fig. 3, first preferred embodiment of the housing 2 of a tilt switch of the utility model is used for a photoelectricity group 3 is installed, and a rolling assembly 4.

This housing 2 has a mutually involutory shell block 21 and cap 22.This shell block 21 has around an axis X and defines first anchor ring 211 of a cavity 210, second anchor ring 212 and the 3rd anchor ring 213, reaches two ducts 214 of running through along an optical axis L direction vertical with this axis X.These the first anchor ring 211 contiguous these cavity 210 1 ends, in this preferred embodiment, this first anchor ring 211 is an annular conical surface, its tangent line angle by this axis X is the first angle theta 1, greater than 90 degree.This second anchor ring 212 is an annular conical surface in this preferred embodiment, and its tangent line angle by this axis X is that the second angle theta 2 is less than or equal to 90 degree.Better, less than or equal to 180 degree, these the second angle theta 2 boundaries are in 20～90 degree greater than 90 degree for this first angle theta 1.

This photoelectricity group 3 is encapsulated in 22 of this shell block 21 and this caps, and has an optical transmitting set 31 and an optical receiver 32.This optical transmitting set 31 has respectively a body 311,321 that is oppositely arranged on these cavity 210 both sides with this optical receiver 32, passes the pair of terminal 312,322 of this housing 2, and is formed on an end face and the relative light action section 313,323 in this duct 214.Whereby, make the light signal pass through this cavity 210 along this optical axis L direction.

This rolling assembly 4 is contained in this cavity 210 and follows this first, second anchor ring 211,212 to roll between a via positions of the off position that stops optical axis L and disengaging optical axis L.

During normal condition, this rolling assembly 4 can be trapped in 211 of first anchor rings of this cavity 210, is positioned at the off position of blocking-up optical axis L, makes light beam be hampered by this rolling assembly 4 and forms and open circuit and be " OFF " state.

Consult Fig. 4, Fig. 5, Fig. 6 also cooperates Fig. 3, when this housing 2 is subject to External Force Acting and tilts to bevel angle β 1≤angle of inclination＜bevel angle β 2, the position (Fig. 4) that this rolling assembly 4 can follow first this first anchor ring 211 to be rolled into these cavity 210 1 sides and still to keep break beam, then, when continuing to tilt to angle 〉=bevel angle β 2 along with this housing 2, this rolling assembly 4 can follow this second anchor ring 212 to be rolled into to be positioned at the position (Fig. 5) that breaks away from this optical axis L, at last, this rolling assembly 4 can roll and be stable at the 3rd anchor ring 213 (Fig. 6), make light beam form the conducting loop by this cavity 210 and be " ON " state, whereby, reach the effect of " ON/OFF " switch control.

Consult Fig. 2, Fig. 3, and Fig. 4, it is worth mentioning that, because this first angle theta 1 is spent less than or equal to 180 greater than 90 degree, therefore, when normal condition, be trapped in the rolling assembly 4 in this cavity 210, can't be loop contacts with this first anchor ring 211, at most also only can contact with this first anchor ring 211 with an avris, whereby, can effectively avoid the situation of this this rolling assembly 4 of the first anchor ring 211 clampings, and not have the jam phenomenon.

Consulting Fig. 7, Fig. 8, and Fig. 9, is second preferred embodiment of the utility model, and itself and this first preferred embodiment is roughly the same, difference be in:

This housing 2 also has an inner casing 23 that is contained in 22 of this shell block 21 and this caps.This inner casing 23 has first anchor ring 231 and second anchor ring 232 that is surrounded on an axis X and defines a cavity 230, and is formed on an opening 233 and a duct 234 of both sides along this axis X direction.This first anchor ring 231 has first angle theta 1 greater than 90 degree equally.This second anchor ring 232 has second angle theta 2 less than or equal to 90 degree equally.

The optical transmitting set 31 of this photoelectricity group 3 and this optical receiver 32 make the light signal pass through this cavity 230 along this axis X direction take axis X as optical axis.

During normal condition, this rolling assembly 4 can be trapped in 231 of first anchor rings of this cavity 230 equally, is positioned at the off position of blocking-up axis X, makes light beam be hampered by this rolling assembly 4 and forms and open circuit and be " OFF " state.

When this housing 2 is subject to External Force Acting and tilts, this rolling assembly 4 can follow first this first anchor ring 231 to be rolled into this alcove 230 1 sides equally, then, follow this second anchor ring 232 to be rolled into along with these housing 2 lasting inclinations and be positioned at the position that breaks away from this optical axis L, make light beam form the conducting loop by this cavity 230 and be " ON " state, whereby, reach the effect of " ON/OFF " switch control.

Consulting Figure 10, is the 3rd preferred embodiment of the utility model, and itself and this first preferred embodiment is roughly the same, difference be in:

This first anchor ring 211 is a cancave cambered surface, and its tangent line angle by this axis X is the first angle theta 1, equally greater than 90 degree.

Whereby, when normal condition, be trapped in the rolling assembly 4 in this cavity 210, can not be loop contacts with this first anchor ring 211 equally, at most also only can contact with this first anchor ring 211 with an avris, whereby, can effectively avoid the situation of this this rolling assembly 4 of the first anchor ring 211 clampings, and not have the jam phenomenon.

According to the above as can be known, the housing of multilayer angle tilt switch of the present utility model has following advantages and effect:

The utility model can be with this first anchor ring 211,231 openr the first angle theta 1, make this rolling assembly 4 can be when this housing 2 tilts, can not produce the phenomenon of jam, and second angle theta 2 that can restrain with this second anchor ring 212,232, make this rolling assembly 4 break away from smoothly optical axis L according to default angle of inclination, and then promote sensitivity and smoothness when moving.

Claims

1. the housing of a tilt switch is used for a photoelectricity group is installed, and at least one rolling assembly, and this photoelectricity group is along an optical axis emission and receive the light signal, it is characterized in that this housing comprises:

Around an axis and define first anchor ring and second anchor ring of a cavity, this first anchor ring is close to this cavity one end and spends greater than 90 by the tangent line angle of this axis, this second anchor ring is spent less than or equal to 90 by the tangent line angle of this axis, this cavity is accommodating for this rolling assembly, makes this rolling assembly follow this first anchor ring and this second anchor ring to roll between a via positions of the off position that stops optical axis and disengaging optical axis.

2. the housing of tilt switch according to claim 1, it is characterized in that: this first anchor ring is cancave cambered surface or annular conical surface.

3. the housing of tilt switch according to claim 1 is characterized in that: less than or equal to 180 degree, angle circle of this second anchor ring is in 20～90 degree greater than 90 degree for the angle of this first anchor ring.

4. the housing of tilt switch according to claim 1, it is characterized in that: this optical axis is vertical with this axis.

5. the housing of tilt switch according to claim 1 is characterized in that: this housing also has contiguous this cavity other end and around the 3rd anchor ring of this axis.

6. the housing of tilt switch according to claim 5 is characterized in that: this housing has mutually involutory and load a shell block and a cap of this photoelectricity group, and this first anchor ring, the second anchor ring, the 3rd anchor ring and this cavity are formed on this shell block.

7. the housing of tilt switch according to claim 1 is characterized in that: this optical axis and this dead in line.

8. the housing of tilt switch according to claim 7, it is characterized in that: this housing has mutually involutory and load a shell block and a cap of this photoelectricity group, and is contained between this shell block and this cap and is formed with an inner casing of this first anchor ring, this second anchor ring and this cavity.