CN201490091U

CN201490091U - Drop hammer type anti-toppling switch

Info

Publication number: CN201490091U
Application number: CN2009201934200U
Authority: CN
Inventors: 张军峰
Original assignee: XIAMEN GOLDEN-SWITCH ELECTRONICS Co Ltd
Current assignee: XIAMEN GOLDEN-SWITCH ELECTRONICS Co Ltd
Priority date: 2009-08-20
Filing date: 2009-08-20
Publication date: 2010-05-26
Anticipated expiration: 2019-08-20

Abstract

The utility model discloses a drop hammer type anti-toppling switch comprising a supporting frame and a microswitch component installed in the supporting frame, wherein the microswitch component consists of a microswitch and a movable arm; the bottom surface of the microswitch is provided with a switch button; the movable arm is arranged at the lower part of the switch button, and one end of the movable arm and the mircoswitch are connected into a whole by two fastener positions that are bilaterally symmetrical; the bottom surface of the supporting frame is provided with a drop hammer; a suspender of the drop hammer passes through the supporting frame and is contacted with the movable end of the movable arm; the contact part of the suspender and the movable arm is below the mircoswitch button; and the suspender inclines to cause the movable arm and the switch button to act instantly, thus realizing the circuit opening of the miroswitch. The principle is that when a main machine inclines or tumbles, the drop hammer also inclines following the main machine, and the suspender swings and pushes the movable arm to act upwards, thus leading the switch button to play roles for instant circuit opening, and the drop hammer type anti-toppling switch can be broadly used for household appliances such as fan heaters, electric fans, electric oil heaters and the like.

Description

The drop hammer type anti-dumping switch

Technical field

The utility model relates to a kind of anti-dumping switch, belongs to the manufacturing field of the sensitive switch that adopts on the electrical equipment, refers in particular to a kind of improvement structure that is widely used in the drop hammer type anti-dumping switch that adopts on the household electrical appliance such as warm-air drier, electric fan and electric heating installation using oil as medium.

Background technology

At present, anti-dumping switch has been widely adopted on household electrical appliance such as electric fan, warm-air drier, electric heating installation using oil as medium, and its function is that when electrical equipment is normally placed the pair of contact in the switch is connected, and therefore electrical equipment get electric and operate as normal; Excessive or when putting upside down, anti-dumping switch quits work electrical equipment with main frame snap action automatic shutoff circuit under gravitate, avoids causing danger when the electrical equipment inclination angle.

Chinese patent literature CN2561081Y provides a kind of anti-dumping switch, as shown in Figure 1, sensitive switch is fixed in the U-shaped installing rack, the bridge plate b that is connected U-shaped installing rack sidepiece is arranged between the bottom of the bottom of microswitch push-button a and U-shaped installing rack, have the end that the suspension rod c that heavily cuts or polish jade with an emery wheel d passes the U-shaped installing rack and is positioned at bridge plate, heavily stone roller tilts to make suspension rod swing promotion bridge plate to contact with the button of sensitive switch, makes sensitive switch moment disconnection.This structure makes sensitive switch moment disconnection by bridge plate, the distance of the contact point of bridge plate and suspension rod and shift knob a is far away, learn that by experimental analysis the shift knob action needs bridge plate to make bigger stroke, stiff end and installing rack owing to above-mentioned bridge plate is connected as a single entity simultaneously, to consider during assembling that bridge plate reaches the designing requirement of switch respectively with the position at shift knob and suspension rod top relation, so inconvenience during each parts installation.

Chinese patent literature CN201146154Y provides a kind of anti-dumping switch, comprise support and be installed in the interior sensitive switch of support, the bottom surface of support is equipped with the lower end and has the heavily suspension rod of stone roller, the holding part of suspension rod below the button of sensitive switch and under the poised state with the button of sensitive switch between face contact, its principle be utilize suspension rod directly with the shift knob effect, when having the suspension rod inclination of heavy stone roller and cut off circuit.Yet the shift knob of this structure is owing to contact with the suspension rod face, therefore the contact-making surface of shift knob is made bigger, and the axis of button and the axis of suspension rod are in same straight line as far as possible, increased the positioning accuracy of producing, in addition according to lever principle, it is bigger that quality is heavily cut or polish jade with an emery wheel in the suspension rod bottom that button is subjected to same power and needs, so increased production cost.

On total, the inventor creates a novel drop hammer type anti-dumping switch, so proposition of the present utility model is just arranged finally through studying for a long period of time and testing.

Summary of the invention

At the deficiency of existing anti-dumping switch technology, the utility model provide a kind of rational in infrastructure, switching manipulation is safe and reliable, nimbly and freely, break-make drop hammer type anti-dumping switch smoothly.

For achieving the above object, the utility model is achieved through the following technical solutions:

The utility model comprises bracing frame and the sensitive switch assembly that is installed in the support frame as described above, wherein

The sensitive switch assembly is to be made of a sensitive switch and a swing arm, and there is a shift knob bottom surface of sensitive switch, and swing arm is arranged at the shift knob bottom, and an end of swing arm is connected as a single entity by symmetrical two button bits and sensitive switch;

Bracing frame, its bottom surface is provided with a sash weight, the suspension rod of this sash weight passes bracing frame and contacts with the swing arm movable end, and the contact site of suspension rod and swing arm is in the below that is positioned at shift knob, and sash weight tilts to make swing arm and shift knob snap action to realize opening circuit of sensitive switch.

Further, described shift knob is that line contacts with swing arm, thereby has increased the sensitivity of shift knob action.

Further, described bracing frame is made up of a cover plate and support, both by bolt in the sensitive switch both sides.

Further, described sash weight is heavily cut or polish jade with an emery wheel by suspension rod and the metal that is arranged at the suspension rod bottom and is formed, and suspension rod passes the base plate of bracing frame and contacts with the swing arm face, its contact-making surface be arranged at shift knob under.

The course of work of the present utility model is as follows, when main frame just often, the sash weight on the anti-dumping switch vertically downward, suspension rod does not have active force to swing arm and shift knob, sensitive switch is in on-state; When main frame tilted or falls, sash weight also tilted, and the suspension rod swing promotes upwards action of swing arm, made the shift knob momentary power failure of having an effect, and can be widely used in household electrical appliance such as warm-air drier, electric fan and electric heating installation using oil as medium.

The utlity model has following useful effect:

1, swing arm and sensitive switch be by the button bit formula formation assembly that is connected as a single entity, simple installation, and efficient improves.

2, directly control the connecting and disconnecting of sensitive switch assembly by the suspension rod that has heavily stone roller, reduced the transmission link of power, make switching manipulation safe and reliable, nimbly and freely, clear, break-make is smooth and easy.

3, the swing arm in holding part and the described sensitive switch assembly is metal, and contact-making surface is smooth, and frictional force is little, makes anti-dumping switch can both disconnect accurately when universal inclination.

Description of drawings

Fig. 1 is existing anti-dumping switch structural representation;

Fig. 2 is a front view of the present utility model;

Fig. 3 is the utility model end view;

Fig. 4 is the utility model part-structure schematic diagram;

Fig. 5 is the utility model sensitive switch assembly schematic diagram.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing:

Embodiment: structure such as Fig. 2, Fig. 3 and shown in Figure 4, the utility model comprises bracing frame and is installed on the interior sensitive switch assembly of support frame as described above, sensitive switch assembly wherein, as shown in Figure 5, be to constitute by a sensitive switch 1 and a swing arm 2, there is a shift knob 11 bottom surface of sensitive switch 1, and swing arm 2 is arranged at shift knob 11 bottoms, and an end of swing arm 2 is connected as a single entity by symmetrical two button bits and sensitive switch 1 corresponding reference column 12; The bracing frame bottom surface is provided with a sash weight 3, the suspension rod 31 of this sash weight passes bracing frame and contacts with swing arm movable end 21, the place, contact site of suspension rod 31 and swing arm is positioned at the below of shift knob, and sash weight 3 tilts to make swing arm and shift knob snap action to realize opening circuit of sensitive switch.

As Fig. 4, shown in Figure 5, the bottom of shift knob 11 can make the arc surfaced structure to be become line with the planar shaped of swing arm and contacts, thereby has increased the sensitivity of shift knob action.

As Fig. 2, bracing frame is made up of a cover plate 4 and support 5, and both bottoms connect the back and are fixed in sensitive switch 1 both sides by bolt 6.

As Fig. 3 and Fig. 4, sash weight 3 is heavily cut or polish jade with an emery wheel 32 by suspension rod 31 with the metal that is arranged at the suspension rod bottom and is formed, suspension rod 31 passes bracing frame and hangs on the base plate of bracing frame, and the top of suspension rod 31 is a plane and contacts with 2 of swing arms, its contact-making surface can be arranged at shift knob under, also can be arranged near the proximity switches button.

The course of work of the present utility model is as follows, when main frame just often, the sash weight on the anti-dumping switch vertically downward, suspension rod does not have active force to swing arm and shift knob, sensitive switch is in on-state; When main frame tilted or falls, sash weight also tilted, and the suspension rod swing promotes upwards action of swing arm, made the shift knob momentary power failure of having an effect.

The above record only for utilizing the embodiment of this origination techniques content, anyly is familiar with modification, the variation that this skill person uses this creation to do to do, and all belongs to the claim of this creation opinion, and is not limited to those disclosed embodiments.

Claims

1. a drop hammer type anti-dumping switch comprises bracing frame and is installed on the interior sensitive switch assembly of support frame as described above, wherein is characterised in that:

Bracing frame, its bottom surface is provided with a sash weight, and the suspension rod of this sash weight passes bracing frame and contacts with the swing arm movable end, and the contact site of suspension rod and swing arm is positioned at the below of shift knob, and sash weight tilts to impel swing arm and shift knob snap action to realize opening circuit of sensitive switch.

2. drop hammer type anti-dumping switch according to claim 1 is characterized in that: described shift knob is that line contacts with swing arm.

3. drop hammer type anti-dumping switch according to claim 1 is characterized in that: described bracing frame is made up of a cover plate and support, both by bolt in the sensitive switch both sides.

4. drop hammer type anti-dumping switch according to claim 1, it is characterized in that: described sash weight is heavily cut or polish jade with an emery wheel with the metal that is arranged at the suspension rod bottom by suspension rod and is formed, suspension rod passes the base plate of bracing frame and contacts with swing arm, its contact-making surface be arranged at shift knob under.