A kind of construction of switch
Technical field
The present invention relates to the control switch field, be specifically related to a kind of construction of switch.
Background technology
Along with China's rapid economy development, electric heating liquid has obtained using widely in every field, the device of many electric heating liquid also occurred.In recent years along with the development of mechanical technique; The construction of switch of electric heating liquid device has also had very big development; But its construction of switch is complicated; Can't control the break-make of power supply and the switching of return-flow structure simultaneously, can not realize the effect of same structure difference in functionality, cause the increase of parts and the raising of cost.
Summary of the invention
The technical problem that the present invention solves provides a kind of construction of switch, and its simple in structure being easy to is controlled, and can control the break-make of power supply and the switching of refluxing opening simultaneously.
For solving the problems of the technologies described above; The technical scheme that the present invention adopts is: a kind of construction of switch, comprise water chamber, and water chamber is provided with refluxing opening and delivery port; Wherein, Also be provided with switch module on the water chamber, switch module comprises switch key, sensitive switch and is used to seal the valve member of refluxing opening that sensitive switch is connected with power supply; Switch key drives sensitive switch and valve member, controls the break-make of power supply and the switching of refluxing opening simultaneously.When energising, refluxing opening is closed, and hot water flows out from delivery port; When outage, refluxing opening is opened, and hot water is back to the water-supply structure from refluxing opening.Use this kind structure, just can control opening and closing of opening and closing of delivery port and refluxing opening simultaneously through a button, simple in structure, kill two birds with one stone.
Further, described valve member is a valve rod.Switch key can effectively seal or open refluxing opening through actuate valve stem, and control is convenient.
Described switch module also comprises the self-lock switch that is used to locate stem position, the resetting structure that is used for the reset switch button, and resetting structure is located between water chamber and the switch key, and water chamber is provided with the location structure that is used to limit valve rod portion's motion within it.When switch key is pressed, stem movement to certain stroke, self-lock switch can lock stem position, and valve rod seals refluxing opening, and sensitive switch is connected simultaneously; When Push switch button once more; The self-lock switch release, the shell fragment on resetting structure or the sensitive switch is upspring switch key, also can be that the shell fragment on resetting structure and the sensitive switch is upspring switch key simultaneously; Switch key drives valve rod and moves upward; Valve rod leaves refluxing opening, and refluxing opening is opened, and the sensitive switch power supply breaks off simultaneously.
Further, described resetting structure is a spring.Through spring, can effectively reset to switch key.
Described switch module also comprises at least one sealing ring, and sealing ring is used to stop that steam or water flow out from location structure.Through fixed seal ring on valve rod, can prevent effectively that steam or water from flowing out from location structure.Described self-lock switch is a door interlock switch, through the function of door interlock switch realization self-locking, and the position of location valve rod.Use door interlock switch, simple in structure, self-locking is effective.
Described switch key comprises driving lever and draw-in groove, and valve rod is connected in the draw-in groove, and driving lever is connected with the contact elasticity of sensitive switch.It is simple and reliable that valve rod is connected in the connected mode of draw-in groove, is easy to assembling, and draw-in groove is located at the switch key end, and manufacturing process is simple, and the switch key motion drives moving of valve rod simultaneously, and triggers microswitch connecting power.
Further, described draw-in groove is " U " type groove.Valve rod is connected in " U " type groove.Adopt " U " type groove structure, the clamping of valve rod is just convenient, thereby makes assembling become simple, improves efficiency of assembling.
Compared with prior art, beneficial effect is: also be provided with switch module on the water chamber of the present invention, switch module comprises switch key, sensitive switch and is used to seal the valve member of refluxing opening that sensitive switch is connected with power supply; Switch key drives sensitive switch and valve member, controls the break-make of power supply and the switching of refluxing opening simultaneously.Its simple in structure being easy to is controlled, and has realized the effect of same structure difference in functionality, has reduced parts, has reduced cost.
Description of drawings
Fig. 1 is an overall structure sketch map of the present invention;
Fig. 2 is overall structure first sketch map of the present invention;
Fig. 3 is overall structure second sketch map of the present invention;
Fig. 4 is a switch key structural representation of the present invention;
Fig. 5 is a water chamber structural representation of the present invention.
Embodiment
Shown in Fig. 1-5; A kind of construction of switch comprises water chamber 10, and water chamber 10 is provided with refluxing opening 11 and delivery port 12; Wherein, Also be provided with switch module on the water chamber 10, switch module comprises switch key 21, sensitive switch 22 and is used to seal the valve member of refluxing opening 11 that sensitive switch 22 is connected with power supply; Switch key 21 drives sensitive switch 22 and valve member, controls the break-make of power supply and the switching of refluxing opening 11 simultaneously.When energising, refluxing opening 11 is closed, and hot water flows out from delivery port 12; When outage, refluxing opening 11 is opened, and hot water is back to the water-supply structure from refluxing opening 11.
Further, described valve member is a valve rod 24.Up and down through valve rod 24 can effectively seal or open refluxing opening 11, and control be convenient.
Switch module also comprises the self-lock switch 23 that is used to locate valve rod 24 positions, the resetting structure that is used for reset switch button 21; Resetting structure is located between water chamber 10 and the switch key 21, and water chamber 10 is provided with the location structure 13 that is used to limit valve rod 24 portion's motion within it.When switch key 21 was pressed, valve rod 24 moved to certain stroke, and self-lock switch 23 can lock valve rod 24 positions, and 24 pairs of refluxing openings 11 of valve rod seal, and sensitive switch 22 is connected simultaneously; When Push switch button 21 once more; Self-lock switch 23 releases, the shell fragment on resetting structure or the sensitive switch 22 is upspring switch key 21, also can be that the shell fragment on resetting structure and the sensitive switch is upspring switch key simultaneously; Switch key 21 drives valve rod 24 and moves upward; Valve rod leaves refluxing opening 11, and refluxing opening 11 is opened, and sensitive switch 22 power supplys break off simultaneously.
Further, described resetting structure is a spring 27.Through spring 27, can effectively reset to switch key 21.Self-lock switch 23 is a door interlock switch.Through the function of door interlock switch realization self-locking, the position of location valve rod 24.
Switch module also comprises at least one sealing ring 25, and sealing ring 25 is used to stop that steam or water flow out from location structure 13.
As shown in Figure 4, switch key 21 comprises driving lever 211 and draw-in groove, and valve rod 24 is connected in the draw-in groove, and driving lever 211 is connected with the contact elasticity of sensitive switch 22.Draw-in groove is " U " type groove 212, and valve rod 24 is connected in " U " type groove 212.
Concrete operation principle: switch key 21 moves downward; The contact that drives valve rod 24 and sensitive switch 22 simultaneously moves downward; When moving to the range of door interlock switch; Switch key 21 is realized self-locking through the self-locking mechanism of door interlock switch, and this moment, the contact of sensitive switch 22 moved to range, power connection; Simultaneously, valve rod 24 also moves to range, 11 sealings of 24 pairs of refluxing openings of valve rod.Press switch key 21 once more, switch key 21 resets, the door interlock switch release, and the elastic force of the contact through spring 27 and sensitive switch 22 moves upward, and sensitive switch 22 breaks off dump; Simultaneously, valve rod 24 moves upward, and refluxing opening 11 is opened.
The above only is a preferred implementation of the present invention, should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can do the improvement of some suitable actual conditions to the technical scheme of invention.Therefore, protection scope of the present invention is not limited thereto, and those of skill in the art are any to be included within protection range of the present invention based on non-material change on the technical scheme of the present invention.