CN203850162U

CN203850162U - Foot switch

Info

Publication number: CN203850162U
Application number: CN201420255457.2U
Authority: CN
Inventors: 王勇; 罗杰; 何桢
Original assignee: Zhejiang Green Field Automobile Co Ltd
Current assignee: Zhejiang Green Field Automobile Co Ltd
Priority date: 2014-05-19
Filing date: 2014-05-19
Publication date: 2014-09-24
Anticipated expiration: 2024-05-19

Abstract

The utility model relates to a foot switch comprising a switch shell and a foot rest and a spindle which are installed on the switch shell. The spindle is fixed on the switch shell. The foot rest sleeves the spindle and can be rotated around the spindle. The foot rest is provided with a sensor sheet. The sensor sheet also sleeves the spindle and can be rotated around the spindle along with the foot rest. The front end of the sensor sheet is extended into the switch shell. A proximity switch is fixed in the switch shell. The proximity switch is electrically connected with a power controller of equipment. When the foot rest is trodden on, the proximity switch can be used to sense the sensor sheet and make the power controller be powered on. According to the utility model, the switch action mode which is close to contactless mode is adopted, so the equipment failure rate can be reduced, and the safe performance of the foot switch can be enhanced.

Description

A kind of pedal type switch

Technical field

The utility model relates to equipment control switch, particularly a kind of pedal type switch.

Background technology

Pedal type switch is a kind of electric elements conventional in electromechanical equipment, industrial control field.At present, pedal type switch is mainly mechanical type actuating length switch.Although that this kind of structure has is simple in structure, low price, installation and maintenance advantage easily, and generally can pass through larger electric current,, because little, the tired damage of mechanical type control action stroke is fast, be very easy to cause the job insecurity of pedal type switch.In the time of the tired damage of any one parts wherein, just there will be equipment energising to control not normal, cause the misoperation of integral device, be easy to cause equipment damage, the life security that even threatens operating personnel.The situation that burn the contact that simultaneously also exists the peak current producing due to the moment of travel switch closure to cause.So the occasion that mechanical type actuating length switch is not suitable for having relatively high expectations in security performance is used.

Utility model content

Technical problem to be solved in the utility model is, a kind of pedal type switch that approaches non-contact type is provided, and extends the useful life of foot switch, improves the stability of foot switch action.

The utility model is to realize like this, a kind of pedal type switch is provided, comprise switch case and be arranged on pedal and the rotating shaft in switch case, rotating shaft is fixed in switch case, pedal is socketed in rotating shaft and can rotates around the axis, on pedal, be provided with sensing chip, sensing chip is also socketed in rotating shaft and can together rotates around the axis with pedal, the front end of sensing chip extends in switch case, in switch case, be fixed with approach switch, approach switch is electrically connected with the power-supply controller of electric of equipment; In the time that pedal is depressed, approach switch can sense sensing chip, and makes power-supply controller of electric energising.

Further, approach switch is fixed in switch case by fixed support.

Further, approach switch is arranged on the sidepiece of sensing chip.

Further, between approach switch and sensing chip, be provided with gap, gap is 1 millimeter to 10 millimeters.

Further, power-supply controller of electric is electromagnetically operated valve.

Compared with prior art, pedal type switch of the present utility model, by approach switch and sensing chip are set, depresses after pedal, and the power-supply controller of electric of equipment is just connected in approach switch action, realizes the power on/off function of foot switch.The utility model, owing to having adopted the switch motion pattern that approaches non-contact type, has reduced the failure rate of equipment, has strengthened the security performance of pedal type switch.

Brief description of the drawings

Fig. 1 is the construction of switch schematic diagram of the utility model one preferred embodiment;

Fig. 2 is the switch motion principle schematic of Fig. 1.

Embodiment

In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.

Please refer to shown in Fig. 1 and Fig. 2, the preferred embodiment of the utility model pedal type switch, comprises switch case 1 and is arranged on pedal 2 and the rotating shaft 3 in switch case 1.

Rotating shaft 3 is fixed in switch case 1, and pedal 2 is socketed in actively in rotating shaft 3 and can 3 rotates around the shaft.On pedal 2, be provided with sensing chip 4, sensing chip 4 is also socketed in rotating shaft 3 and can together 3 rotates around the shaft with pedal 2, and the front end of sensing chip 4 extends in switch case 1.In switch case 1, be fixed with approach switch 5, approach switch 5 is electrically connected with the power-supply controller of electric (not shown) of equipment, the power on/off of the power-supply controller of electric of the break-make control appliance of approach switch 5, the starting or stoping of control appliance.In the time that pedal 2 is depressed, approach switch 5 can sense sensing chip 4, and makes power-supply controller of electric energising, thus starting device.

Approach switch 5 is fixed in switch case 1 by fixed support 6.Approach switch 5 is arranged on the sidepiece of sensing chip 4.Between approach switch 5 and sensing chip 4, be provided with gap, gap is 1 millimeter to 10 millimeters, and in the present embodiment, gap is 5 millimeters.In the present embodiment, equipment is electric welding machine, and power-supply controller of electric is electromagnetically operated valve, and electromagnetically operated valve moves at control cylinder, thereby can control electric welding machine work.

Operation principle of the present utility model: approach switch 5 is fixed in the switch case 1 of foot switch, steps on pedal 2, make the A end of pedal 2 downwards.Rotating shaft 3 is equivalent to fulcrum B.Pedal 23 rotates around the shaft, drives the sensing chip 4 on pedal 2 upwards to lift, and the front end C point of sensing chip 4 upwards rotates around fulcrum B.Approach switch 5 is equivalent to symbol D, and approach switch 5 is arranged on the side of sensing chip 4.When the front end C of sensing chip 4 upwards rotates, thereby sensed by approach switch 5 and trigger its action and connect electromagnetically operated valve and make cylinder action.

Main feature of the present utility model is: 1, its control action adopts the contactless control of approach switch.2, its mechanical action reduces, and reduces rate of occurrence of equipment failure, indirectly enhances productivity.3, security performance is good, and in the time that inductive switching sheet does not effectively block approach switch, equipment can not move, and has effectively reduced because appliance switch misoperation is to equipment and the personal damage causing.4, be active in one's movements, reliable, stability is high.

The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.

Claims

1. a pedal type switch, comprise switch case and be arranged on pedal and the rotating shaft in described switch case, described rotating shaft is fixed in switch case, described pedal is socketed in rotating shaft and can rotates around the axis, it is characterized in that, on described pedal, be provided with sensing chip, described sensing chip is also socketed in rotating shaft and can together rotates around the axis with pedal, the front end of described sensing chip extends in switch case, in described switch case, be fixed with approach switch, described approach switch is electrically connected with the power-supply controller of electric of equipment; In the time that described pedal is depressed, described approach switch can sense sensing chip, and makes power-supply controller of electric energising.

2. pedal type switch as claimed in claim 1, is characterized in that, described approach switch is fixed in switch case by fixed support.

3. pedal type switch as claimed in claim 2, is characterized in that, described approach switch is arranged on the sidepiece of sensing chip.

4. pedal type switch as claimed in claim 2, is characterized in that, between described approach switch and sensing chip, is provided with gap, and described gap is 1 millimeter to 10 millimeters.

5. pedal type switch as claimed in claim 1, is characterized in that, described power-supply controller of electric is electromagnetically operated valve.