CN2852362Y

CN2852362Y - Fully closed type anti-overturning switch

Info

Publication number: CN2852362Y
Application number: CN 200520117463
Authority: CN
Inventors: 沙建君
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-22
Filing date: 2005-12-22
Publication date: 2006-12-27
Anticipated expiration: 2015-12-22

Abstract

The utility model relates to a fully closed type anti-overturning switch which comprises a casing which is provided with an upper cavity body, a lower cavity body and a cavity channel, wherein the bottom of the closed upper cavity body presents a bowl shape; the cavity channel is positioned between the upper cavity body and the lower cavity body; a rolling ball is arranged in the upper cavity body; a microswitch is arranged in the lower cavity body; a driving mechanism which controls a switch to be switched on and off by the operation of the rolling ball is arranged in the cavity channel; the driving mechanism comprises a movable pushing rod, wherein the head part of the pushing rod, which is corresponding to the rolling ball, presents a tray-shaped structure for the rolling ball to fall into the head part; one head of a pressing sheet which operates by using the pushing rod is connected to the pushing rod, the other head presses a press-button of the microswitch, and the end part of the other head is fixed on the proper position of the microswitch; a restoring spring is sheathed on the pushing rod between the pressing sheet and the head part of the pushing rod. The utility model has the advantages of reasonable design, and stable and reliable performances. The utility model can ensure the instant characteristic of the switch operation and the safety of use. The utility model can be widely used in various electric appliances, such as a low-voltage and low-current liquifier, a heater, etc.

Description

A kind of totally enclosed type anti-dumping switch

Technical field

The utility model relates to a kind of electric control switch, especially a kind ofly is used to prevent the totally enclosed type anti-dumping switch that shields when electrical equipment is toppled over.

Background technology

Chinese patent 200320120575.4 discloses a kind of anti-dumping switch of shielding when household electrical appliance such as various warm-air driers, electric fan and electric heating installation using oil as medium and other electrical equipment are toppled over of being used for; this switch is a kind of ball-type anti-dumping switch; it mainly comprises the housing of the case formation of two connections, is arranged on sensitive switch and carriage mechanism in the housing.Carriage mechanism is made of pallet, compressing tablet and back-moving spring, its two sides of compressing tablet that supporting is connected in the housing lower chamber join with the contact of back-moving spring and sensitive switch respectively, the other end of compressing tablet is equipped with pallet, and pallet is arranged in the cavity, be contained in spheroid in the upper cavity and fall into and depress pallet in the cavity, compressing tablet is depressed the contact of sensitive switch and is connected circuit.When main frame tilted and falls, with the housing tilt displacement, then pallet was owing to the disengaging of spheroid sets back compressing tablet to spheroid under the effect of its gravity, and sensitive switch moment disconnection reaches and cuts off the electricity supply or the purpose of circuit.Therefore this switch can not be subjected to the influence of external environment factors such as the corrosion of gases such as airborne acid, alkali and air humidity because spheroid, pallet and compressing tablet are arranged in the upper cavity of sealing, can guarantee the wink moving property and the security reliability of use of switch motion.

Summary of the invention

Technical problem to be solved in the utility model is that a kind of totally enclosed type anti-dumping switch that is different from the prior art structure will be provided, and this switch designs is reasonable, and is stable and reliable for performance, can guarantee better the wink of switch motion to move the security reliability of property and use.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: comprise housing, this housing has sealing and the bottom is upper cavity and the lower chamber and the cavity between upper cavity and lower chamber of bowl-type, ball is housed in the upper cavity, sensitive switch is housed in the lower chamber, be equipped with in the cavity by the driving mechanism of ball action with the control switch break-make, it is characterized in that described driving mechanism comprises a mobilizable push rod, the corresponding ball of the head of push rod wherein, be the hypocrateriform structure that can supply ball to fall into, one is connected on this push rod by one of compressing tablet of push rod action, the other end is pressed on the button of the sensitive switch in the switching device and the end is fixed on the suitable position of sensitive switch, and a back-moving spring is set on the push rod between compressing tablet and the push rod head.In ball falls into dish, push rod is depressed and driven the compressing tablet pressing button and make the sensitive switch action cause connecting conduction; Push-button switch breaks away from the pallet of push rod when ball, and then push rod is because the effect of back-moving spring, moves on the interlock compressing tablet to set back, and the disconnection of upspringing of button moment reaches and cuts off the electricity supply or the purpose of circuit.

Compared with prior art, advantage of the present utility model is: by the variation of ball with the main frame position, make ball fall into the push rod of depressing the band pallet in the cavity of housing, or the cavity of ball disengaging housing makes the push rod of band pallet be in free state, realize the break-make work of sensitive switch and power supply or circuit by compressing tablet, it employs angle is comprehensive.Because the push rod of the ball of action component of the present utility model, band pallet is arranged in the upper cavity of housing of sealing, therefore can not be subjected to the influence of external environment factors such as the corrosion of gases such as airborne acid, alkali and air humidity, can guarantee the moving property of wink of switch motion, safe and reliable, as to improve switch greatly useful life.Anti-dumping switch of the present utility model can be widely used on the electrical equipment such as the liquefier, warmer of various low-voltage low currents.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment when normal operating conditions.

Fig. 2 is the structural representation when toppling over.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

In conjunction with Fig. 1, shown in Figure 2, totally enclosed type anti-dumping switch of the present utility model comprises housing 1 and is arranged on housing interior sensitive switch 3 and driving mechanism 2.Its middle shell 1 is by two case be combined intos, and for ease of quick mounting or dismounting, is respectively equipped with the draw-in groove and the buckle of clamping mutually on two cases.Be formed with upper cavity 11, lower chamber 13 and the cavity between upper cavity and lower chamber 12 that a sealing and bottom are bowl-type by two cases in conjunction with the housing that constitutes, in the upper cavity 11 of housing ball 4 be housed, ball 4 can roll in upper cavity.

Sensitive switch 3 is contained in the lower chamber 13 of housing, and two pins 31 that stretch out in outside the housing are contained in respectively on the relevant position of housing on it.The button 32 of one this switch on and off of may command is housed, and these button 32 correspondences are positioned at the below of compressing tablet 23 in housing.

Driving mechanism 2 is contained in the cavity 12 of housing, is made of a push rod 21, a back-moving spring 22 and a compressing tablet 23, and wherein compressing tablet 23 has elasticity, the one head is made pipe box formula structure, be enclosed within on the push rod 21, the other end is pressed on the button 32 of sensitive switch, and the end fixes on the shell of sensitive switch.Push rod 21 is a T type member, is contained in the pipe box of compressing tablet, can move up and down under the effect of ball 4 and back-moving spring 22.The head 211 of push rod is corresponding to ball, and makes the hypocrateriform structure that can fall into for ball, and the card of pallet is a concaved circular cambered surface.In the time of like this in ball falls into pallet, push rod 21 is moved down and depress compressing tablet 23, press the button 32 of sensitive switch and energized or circuit by compressing tablet 23.Back-moving spring 22 is contained on the push rod 21, between the T of compressing tablet and push rod shape head.When ball 4 left the pallet of push rod, push rod 21 was exactly the effect by this spring 22, moved on the interlock compressing tablet 23 to set back, and 32 moments of button are upspring, and power supply and circuit are connected.And, a shoulder block 212 being arranged in the push rod bottom for spacing when moving on the push rod, this shoulder block and compressing tablet are collided and are placed restrictions on the purpose that push rod moves on continuing to play.

Its course of work is as follows: when main frame just often, ball 4 falls in the cavity and depresses push rod 21 under action of gravity, makes compressing tablet 23 press push button 32, anti-dumping switch moment energized and circuit by push rod 21; When main frame tilts or falls, with housing 1 tilt displacement, then push rod 21 is because the disengaging of ball 4 sets back under the effect of back-moving spring 22 ball 4 under the effect of gravity, and compressing tablet 23 is upspring, button 32 is the moment disconnection of upspringing also, reaches to cut off the electricity supply or the purpose of circuit.

Claims

1, a kind of totally enclosed type anti-dumping switch, comprise housing (1), this housing has sealing and the bottom is upper cavity (11) and the lower chamber (13) and the cavity between upper cavity and lower chamber (12) of bowl-type, ball (4) is housed in the upper cavity, sensitive switch (3) is housed in the lower chamber, be equipped with in the cavity by the driving mechanism (2) of ball action with the control switch break-make, it is characterized in that: described driving mechanism (2) comprises a mobilizable push rod (21), the corresponding ball of the head of push rod wherein, be the hypocrateriform structure that can supply ball to fall into, one (23) one of compressing tablets by this push rod action are connected on this push rod, the button (32) that the other end is pressed in sensitive switch goes up and the end is fixed on the suitable position of sensitive switch, and a reseting spring sleeve (22) is located on the push rod between compressing tablet and the push rod head.

2, totally enclosed type anti-dumping switch as claimed in claim 1, it is characterized in that: making for one of described compressing tablet (23) can be for the pipe box formula structure of push rod insertion, described push rod is located in the cavity of housing by the pipe box formula structure of this compressing tablet, and is provided with the shoulder block (212) of a spacing usefulness in the bottom of push rod.

3, totally enclosed type anti-dumping switch as claimed in claim 1 is characterized in that: described housing (1) is made of two cases that interosculate, and a case is provided with draw-in groove, with buckle on another case formation quick fixation structure that joins.