CN201307552Y

CN201307552Y - Anti-upend switch

Info

Publication number: CN201307552Y
Application number: CNU2008201783329U
Authority: CN
Inventors: 薛仕郎
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-11-10
Filing date: 2008-11-10
Publication date: 2009-09-09
Anticipated expiration: 2018-11-10

Abstract

The utility model relates to a security insurance switch, in particularly an anti-upend switch which includes an upper chamber body with choanoid bottom, a down chamber body and a case communicated with the upper chamber body and the down chamber body, a movable heavy ball is set in the upper chamber body, a microswitch and a lever set in the down chamber body which has characteristic that the lever pivot is set in the down chamber body, a stressed end of the lever extends to the upper chamber body choanoid bottom from the chamber channel for bearing the weight ball, a button on the microswitch locates on a position near to the pivot between the stressed end of the lever and the pivot. The anti-upend switch has advantages of better instantaneous release performance, sensitive and reliable, simple reasonable structure, low manufacturing cost and is easy to assemble.

Description

Anti-dumping switch

Technical field

The utility model relates to a kind of security insurance switch, particularly a kind of steel-ball type anti-dumping switch that adopts on household electrical appliance such as warm-air drier, electric fan and electric heating installation using oil as medium and other the electrical equipment that is widely used in.

Background technology

Portioned product such as warm-air drier in the household electrical appliance industry, electric fan, electric heating spit of fland etc., need are prevented toppling over, and anti-dumping switch generally is set in machine.It is good, sensitive reliable to require anti-dumping switch to have wink moving property, safe in utilization good and cheap etc.Existing anti-dumping switch mainly divides two kinds, and a kind of is the weight oscillating rod type, and another kind is a steel-ball type, and is wherein simple in structure with steel-ball type, and reliable operation and being widely used is toppled over arbitrarily all and can be cut off the electricity supply automatically in 360 degree scopes.

The utility model patent of the patent No. 20032012575.4 discloses a kind of steel-ball type anti-dumping switch, and as shown in Figure 1, it comprises housing 1, is arranged on sensitive switch 6 and carriage mechanism in the housing 1.Housing 1 has upper cavity 1-6, lower chamber 1-8 and the cavity 1-7 between upper cavity 1-6 and lower chamber 1-8 that the bottom is bowl-type, and removable spheroid 2 is housed in the upper cavity 1-6.Sensitive switch 6 is housed in the lower chamber 1-8, carriage mechanism is by pallet 3, compressing tablet 4 and back-moving spring 5 constitute, compressing tablet 4 supportings are connected in the lower chamber 1-8, the rotating shaft that compressing tablet 4 ends have the two ends projection, and be contained in the interior location hole 1-10 of lower chamber 1-8, compressing tablet 4 is rotated in location hole 1-10, and the two sides of compressing tablet 4 join with the contact of back-moving spring 5 and sensitive switch 6 respectively, the other end of compressing tablet 4 is equipped with pallet 3, and pallet 3 is arranged in the cavity 1-7, when spheroid 2 falls in the cavity 1-7, then depresses pallet 3, and compressing tablet 4 moves down the contact of depressing sensitive switch 6, connects circuit.When the main frame inclination, then spheroid 2 is with the lopsidedness of its gravity to housing 1, and at this moment, because spheroid 2 has broken away from pallet 3, compressing tablet 4 is in free state, and the contact of sensitive switch 6 restores, open circuit.

As a kind of improvement, the patent No. 200720009045.0 is open; A kind of improvement structure (as shown in Figure 2) of anti-dumping switch, the anti-tipping apparatus 110 and the sensitive switch assembly 111 that comprise a housing 100 and be arranged in housing 100.Anti-tipping apparatus 110 is positioned at housing 100 tops, and the steel ball 102 that is arranged in funnel by a funnel 101 and constitutes; Sensitive switch assembly 111 is positioned at housing 100 belows, constitute by a sensitive switch 113, a supporting bracket 112, a compressing tablet 114, supporting bracket 112 is by symmetrical four button bits, fuse with sensitive switch 113, the other end of supporting bracket 112 directly forms fulcrums convenient and compressing tablet 114 activities, and this fulcrum adopts the pull-type cooperation of button, and compressing tablet 114 upper ends are provided with the contact-making surface 1111 that directly contacts with steel ball 102, contact-making surface 1111 then is positioned at the middle part of housing, and this contact-making surface 1111 is the plane.

The applicant thinks in conjunction with the accompanying drawings to the structure of above-mentioned two patent anti-dumping switchs:

20032012575.4 existing problem mainly contains 2 points: 1, the reseting elasticity of back-moving spring 5 is consistent with the gravity direction of steel ball, all press to sensitive switch, at tilt state, steel ball breaks away from pallet, still have the masterpiece of back-moving spring 5 to be used for sensitive switch, when the elastic restoring force of back-moving spring 5 during greater than the restoring force of sensitive switch inside reed, sensitive switch is with akinesia, the restoring force of the inner reed of general sensitive switch is very little, this is to cause the main cause of toppling over back sensitive switch akinesia, rational structure should be that back-moving spring 5 is extension springs, should not be stage clip; 2, less from figure cavity 1-7 aperture, steel ball 2 can not all enter cavity 1-7, but major part is sandwiched on the cavity 1-7 hole after entering, because the rubbing action of steel ball 2 and bore edges, under the not too big situation of dump angle, steel ball can not break away from pallet, cause and topple over back sensitive switch akinesia.

200720009045.0 patent, supporting bracket 112 is by symmetrical four button bits, fuse with sensitive switch 113, the other end of supporting bracket 112 directly forms fulcrums convenient and compressing tablet 114 activities, and compressing tablet 114 upper ends are provided with the contact-making surface 1111 that directly contacts with steel ball 102.This patent applicant thinks: the structure because the sensitive switch assembly 111 that compressing tablet 114, supporting bracket 112 and sensitive switch 113 constitute is in one-piece connection, like this, make the utility model course of action be: steel ball 102 rolls, 111 actions of sensitive switch assembly, and course of action is succinct.Its essence remains steel ball-compressing tablet-sensitive switch, only be to have omitted back-moving spring, but in order to be fixed in as the supporting bracket 112 of compressing tablet 114 moving fulcrums on the sensitive switch 113, four button bits that are symmetrical set in supporting bracket 112, make supporting bracket very big, do not meet the principle of economy.

Summary of the invention

Technical problem to be solved in the utility model is, at the above-mentioned deficiency of prior art, and good, highly sensitive, safe and reliable, simple and reasonable, the low cost of manufacture of moving property of a kind of wink is provided, is convenient to the anti-dumping switch producing, assemble.

Anti-dumping switch provided by the utility model is realized by following technical scheme.

A kind of anti-dumping switch, comprise upper cavity, lower chamber and be communicated with the shell of the cavity of cavity up and down with funnel-shaped bottom portion, be located at the interior movable heavy ball of upper cavity, be located at sensitive switch and lever in the lower chamber, the fulcrum of described lever is located in the lower chamber, the force side of lever extends the described heavy ball of upper cavity funnel-shaped bottom portion support by cavity, the button on the described sensitive switch between the force side of described lever and fulcrum near the fulcrum place.

Except that above-mentioned essential features, in specific implementation process, also can further replenish following technology contents.

Described anti-dumping switch, the upper cavity of wherein said funnel-shaped bottom portion is oblate spheroid or class cydariform, lower chamber is a cube cell body, the terminals that the bottom surface of described cube of cell body and a side adjacent with the bottom surface are opened wide for sensitive switch insertion and sensitive switch stretch out, the funnel-shaped bottom portion of described upper cavity is the convex arc rotary surface tangent with the oblate spheroid circular arc, and the force side of described lever is positioned at the bottom of described upper cavity infundibulate convex arc rotary surface.

Described anti-dumping switch, wherein said shell is to be formed by centrosymmetric two half-shells fasteners, the upper bottom surface of the lower chamber of the formation of described half-shells cube cell body is provided with slot, the fulcrum of described lever is made of the U-shaped support that the rotating shaft of being located at the lever both sides and bottom are provided with plate, the rotating shaft of described lever both sides is hubbed on the described U-shaped support, and the plate of described U-shaped support is inserted in the slot on the upper bottom surface of described lower chamber and fixes.

Described anti-dumping switch, wherein said lever is made of with the ascent stage that is connected horizontal segment and level tray the horizontal segment that is positioned at lower chamber, the level tray that is positioned at upper cavity bottom, the end of described horizontal segment is provided with the rotating shaft that constitutes fulcrum, described level tray is circular tabular, and is positioned at the bottom that constitutes described upper cavity infundibulate convex arc rotary surface.

Advantage of the present utility model is:

1, the funnel-shaped bottom portion of described upper cavity is the convex arc rotary surface tangent with the oblate spheroid circular arc, the level tray of described support heavy ball is circular tabular, and be positioned at the bottom that constitutes described upper cavity infundibulate convex arc rotary surface, when switch tilts, heavy ball can not have frictionally rolling at the convex arc rotary surface, and wink, moving property was good.

2, lever one end flexibly connects with the hinge principle, is fixed on the housing, and is sensitive reliable.

3, adopt the fulcrum of the structure of the minimum U-shaped support plant slot of volume as lever, simple and reasonable, low cost of manufacture is convenient to assembling.

For architectural feature of the present utility model and effect thereof are had further understanding, enumerate specific embodiment now and be described with reference to the accompanying drawings as follows.

Description of drawings

Fig. 1 is the structure chart of existing anti-dumping switch.

Fig. 2 is the structure chart of existing improved anti-dumping switch.

Fig. 3 is the structure chart of the utility model anti-dumping switch.

Fig. 4 is the structure chart of lever in the utility model anti-dumping switch.

Fig. 5 is the upward view of Fig. 4.

Embodiment

Shown in Figure 3, a kind of anti-dumping switch provided by the utility model, comprise upper cavity 11, lower chamber 12 and be communicated with the shell 10 of the cavity 13 of cavity up and down with funnel-shaped bottom portion, be located at movable heavy ball 21 in the upper cavity 11, be located at sensitive switch 22 and lever 23 in the lower chamber 12, the fulcrum 231 of wherein said lever 23 is located in the lower chamber 12, the force side 232 of lever 23 extends the described heavy ball 21 of upper cavity 11 funnel-shaped bottom portion supports by cavity 13, the button 221 on the described sensitive switch 22 between the force side of described lever 23 and fulcrum near the fulcrum place.

The utility model has been cancelled the back-moving spring and the pallet of prior art, and balance pivot is located in the lower chamber, simplifies the structure, and has greatly reduced cost, because designs simplification, thereby reliable operation, flexible.When anti-dumping switch is in vertical position, heavy ball 21 is positioned at the force side 232 of the lever 23 of upper cavity 11 funnel-shaped bottom portion, depress lever 23, and press down button 221 on the sensitive switch by lever 23, make sensitive switch 22 normally opened contact adhesives, normally-closed contact disconnects.When anti-dumping switch tilted with main frame, heavy ball 21 was rolled in upper cavity 11, left the force side 232 of the lever 23 of funnel-shaped bottom portion, and microswitch push-button 221 resets under inner reed elastic returning, and normally opened contact disconnects, the normally-closed contact adhesive.

In the structure shown in Figure 3, the upper cavity 11 of described funnel-shaped bottom portion is oblate spheroid or class cydariform, lower chamber 12 is a cube cell body, the terminals that the bottom surface of described cube of cell body and a side adjacent with the bottom surface are opened wide for sensitive switch 22 insertions and sensitive switch stretch out, the funnel-shaped bottom portion of described upper cavity 11 is the convex arc rotary surface 111 tangent with the oblate spheroid circular arc, and the force side of described lever 23 is positioned at the bottom of described upper cavity infundibulate convex arc rotary surface.This structure has guaranteed heavy ball 21 no friction rolling in upper cavity 11, makes switch motion flexible.

Shell described in the utility model is same as the prior art, all be to form by centrosymmetric two half-shells fasteners, the upper bottom surface of the lower chamber of the formation of described half-shells cube cell body is provided with slot 14 (seeing Fig. 4,5), the fulcrum 231 of described lever 23 is made of the U-shaped support 235 that the rotating shaft 233 of being located at lever 23 both sides and bottom are provided with plate 234, the rotating shaft 233 of described lever 23 both sides is hubbed on the described U-shaped support 235, and the plate 234 of described U-shaped support 235 is inserted in the slot 14 on the upper bottom surface of described lower chamber and fixes.

Obviously the fulcrum structure of lever with prior art, adopts supporting bracket by symmetrical four button bits, fuse with sensitive switch, the other end of supporting bracket directly forms fulcrum convenient and the compressing tablet activity, compare more simple, save material, easy to process, cost is low.

Described lever 23 is made of with the ascent stage 238 that is connected horizontal segment and level tray the horizontal segment 236 that is positioned at lower chamber, the level tray 237 that is positioned at upper cavity bottom, the end of described horizontal segment 236 is provided with the rotating shaft 233 that constitutes fulcrum, described level tray 237 is circular tabular, and is positioned at the bottom that constitutes described upper cavity infundibulate convex arc rotary surface.

Claims

1, a kind of anti-dumping switch, comprise upper cavity, lower chamber and be communicated with the shell of the cavity of cavity up and down with funnel-shaped bottom portion, be located at the interior movable heavy ball of upper cavity, be located at sensitive switch and lever in the lower chamber, the fulcrum that it is characterized in that described lever is located in the lower chamber, the force side of lever extends the described heavy ball of upper cavity funnel-shaped bottom portion support by cavity, the button on the described sensitive switch between the force side of described lever and fulcrum near the fulcrum place.

2, anti-dumping switch according to claim 1, the upper cavity that it is characterized in that described funnel-shaped bottom portion is oblate spheroid or class cydariform, lower chamber is a cube cell body, the terminals that the bottom surface of described cube of cell body and a side adjacent with the bottom surface are opened wide for sensitive switch insertion and sensitive switch stretch out, the funnel-shaped bottom portion of described upper cavity is the convex arc rotary surface tangent with the oblate spheroid circular arc, and the force side of described lever is positioned at the bottom of described upper cavity infundibulate convex arc rotary surface.

3, anti-dumping switch according to claim 1, it is characterized in that described shell is to be formed by centrosymmetric two half-shells fasteners, the upper bottom surface of the lower chamber of the formation of described half-shells cube cell body is provided with slot, the fulcrum of described lever is made of the U-shaped support that the rotating shaft of being located at the lever both sides and bottom are provided with plate, the rotating shaft of described lever both sides is hubbed on the described U-shaped support, and the plate of described U-shaped support is inserted in the slot on the upper bottom surface of described lower chamber and fixes.

4, anti-dumping switch according to claim 1, it is characterized in that described lever is made of with the ascent stage that is connected horizontal segment and level tray the horizontal segment that is positioned at lower chamber, the level tray that is positioned at upper cavity bottom, the end of described horizontal segment is provided with the rotating shaft that constitutes fulcrum, and described level tray is circular tabular.