CN106679191A - Water shortage protection device and instant-heating water boiler thereof - Google Patents

Abstract

The invention discloses a water shortage protection device, which comprises a heating pipe and a water receiving box, the water receiving box is installed at the bottom of the heating pipe; one side of the water receiving box is provided with the bottom of the inner cavity of the heating pipe to facilitate sensing of the heating pipe When the temperature exceeds the set value when the water is short of water, the temperature sensor, the water shortage thermostat and the waterproof button, the temperature sensor is provided with a boss protruding to one side, and the boss is extended and connected with an L-shaped sensor head. The side wall of the water box is provided with a sensing hole for the L-shaped sensing head on the temperature sensing sheet to extend into the bottom of the inner cavity of the heating pipe. The corresponding water shortage thermostat is installed on the rear side of the temperature sensing sheet. The waterproof button Installed on the water-shortage thermostat; through the boss on the temperature sensing sheet on the water-shortage protection device and the L-shaped sensing head, when the heating pipe is short of water, the temperature sensor will expand and transmit the change to the water-shortage thermostat Turning off the power supply of the heating tube plays a protective role; the invention also discloses an instant water boiler using a water shortage protection device.

Description

Water shortage protection device and instant water boiler

【Technical field】

The invention belongs to the technical field of drinking water appliances, and in particular relates to a water shortage protection device and an instant water boiler.

【Background technique】

The rapid development of the household appliance industry has made people have higher and higher requirements for liquid heaters that are frequently used in daily life. Nowadays, there are many types of water boilers on the market, but the general functions are single and the structural design is unreasonable, which cannot make consumers convenient and effective. Automatically control the drinking water temperature, especially in order to prevent the water boiler from running dry, the general water boiler is equipped with a water shortage protection device, but the existing water boiler water shortage protection device generally uses a magnetic float device, and its structure is complicated , is not easy to install, and the cost is higher.

【Content of invention】

The invention provides a water shortage protection device with simple structure, convenient control, easy temperature regulation and convenient instant water supply and an instant water boiler.

To achieve the above object, the present invention provides the following technical solutions:

A water shortage protection device, comprising a heating pipe and a water receiving box, the water receiving box is installed at the bottom of the heating pipe; one side of the water receiving box is provided with the bottom of the inner cavity of the heating pipe, which is convenient for sensing when the heating pipe is short of water. The temperature sensing sheet whose temperature exceeds the set value, the water shortage thermostat and the waterproof button, the temperature sensing sheet is provided with a boss protruding to one side, and the boss is extended and connected with an L-shaped sensing head, which is connected to the water The side wall of the box is provided with a sensing hole for the L-shaped sensing head on the temperature sensing sheet to extend into the bottom of the inner cavity of the heating tube. The corresponding water shortage thermostat is installed on the rear side of the temperature sensing sheet, and the waterproof button is installed On the water shortage thermostat; when the temperature in the heating tube rises rapidly and the temperature exceeds the set value, the temperature sensor will expand and transmit the change to the water shortage thermostat, and the water shortage thermostat will sense the temperature through the temperature sensor When the temperature in the heating tube is detected to exceed the set value, disconnect the power supply of the heating tube to protect it. When the heating tube is not short of water and reheats, you need to manually press the waterproof button to restore the water shortage protection function of the water shortage thermostat.

Preferably, the boss of the temperature sensing sheet fits circumferentially with the sensing hole on the side wall of the water receiving box, and a silicone ring is provided between the two to facilitate sealing connection and prevent water leakage.

An instant water boiler, comprising a liquid supply tank, a base, a driving pump and a heating pipe, the driving pump is installed in the liquid supply tank; a liquid outlet is opened at the bottom of the liquid supply tank, and the liquid outlet is connected to the inlet of the driving pump A supply pipe is arranged between them to facilitate the supply of liquid in the liquid supply tank, and the outlet of the drive pump is connected with a pump liquid pipe extending into the liquid supply tank and pumping the liquid in the liquid supply tank to the top of the liquid supply tank; the top of the liquid supply tank There is also an overflow tank to facilitate the overflow of the liquid pumped in by the pump liquid pipe. The outlet of the pump liquid pipe is connected to one side of the bottom of the overflow tank, and the other side of the bottom of the overflow tank is connected to a heating device extending from the bottom of the liquid supply tank. The bottom of the pipe is connected and the liquid in the overflow tank is introduced into the lower liquid pipe in the heating pipe, and a water receiving box is provided between the lower liquid pipe and the heating pipe to facilitate the sealed communication between the two;

One side of the water receiving box is provided with a water shortage protection device that communicates with the bottom of the inner cavity of the heating pipe to facilitate sensing that the temperature exceeds the set value when the heating pipe is short of water. The water shortage protection device includes a temperature sensor, a water shortage temperature Controller and waterproof button, the temperature sensing sheet is provided with a boss protruding to one side, the boss is extended and connected with an L-shaped sensing head, and the side wall of the water box is provided with an L-shaped sensor on the temperature sensing sheet. The measuring head extends into the sensing hole at the bottom of the inner cavity of the heating tube, and the corresponding water shortage thermostat is installed on the back side of the temperature sensing sheet, and the waterproof button is installed on the water shortage thermostat; the pump is driven to draw water and the heating tube When the temperature in the heating tube corresponding to the water shortage in the lower liquid pipe rises rapidly and the temperature exceeds the set value, the temperature sensor will expand and transmit the change to the water shortage thermostat, and the water shortage thermostat will pass the temperature sensor When the chip senses that the temperature in the heating tube exceeds the set value, disconnect the power supply of the heating tube to play a protective role. When the heating tube is not short of water and reheats, you need to manually press the waterproof button to restore the water shortage protection function of the thermostat. .

Preferably, the boss of the temperature sensing sheet on the water shortage protection device is circumferentially fitted with the sensing hole on the side wall of the water box, and a silicone ring is provided between the two to facilitate sealing connection and prevent water leakage.

Preferably, the top of the heating tube is connected with a cooling and heating control device that controls whether the heating tube is heated and controls the temperature of the water outlet from the heating tube by controlling the size of the liquid flow that flows out of the heating tube. The cooling and heating control device includes a liquid outlet tank and a top cover , the first roller switch, the second roller switch, the knob, the disc switch with a cam structure and the temperature adjustment column, and the rear side of the bottom of the outlet tank is connected with the top of the heating pipe and is lower than the overflow tank in the horizontal direction. The liquid guide opening of the balanced water level opening, the bottom front side of the liquid outlet tank is provided with a liquid discharge port to facilitate the automatic flow of liquid, and the liquid discharge tank between the liquid discharge port and the liquid guide port is also provided with a horizontal direction The balance water level of the overflow tank is flush with the overflow plate, and the center of the overflow plate forms a flow channel valve hole that cooperates with the flow baffle set at the lower end of the temperature adjustment column and controls whether the liquid guide port supplies liquid to the liquid discharge port and the flow rate The disc switch with cam structure is pinned to the upper part of the temperature adjustment column positioned and sealed by the top cover, the first roller switch and the second roller switch are respectively matched with the positioning protrusions provided on the lower side of the disc switch with cam structure and Fixedly installed on the top cover, the knob is installed on the top of the temperature adjustment column and drives the disc switch with cam structure and the flow baffle to rotate coaxially;

When the knob is turned, the first roller switch contacted by the disc switch with a cam structure breaks away from the positioning protrusion and presses against its outer edge, the first roller switch starts to drive the pump to pump liquid, and at the same time the flow stop at the lower end of the thermostat column The valve channel matched with the flow channel valve hole in the center of the overflow plate is fully opened, and the unheated cold liquid flows out automatically from the liquid discharge port of the liquid outlet tank; continue to turn the knob, and the first contact with the disc switch with a cam structure When the second roller switch also disengages from the positioning convex part and presses against the outer edge of the disc switch with a cam structure, the second roller switch starts the heating tube to supply power, and at the same time, the valve channel matched by the flow baffle and the flow channel valve hole gradually decreases Until it is completely closed, the temperature gradually increases until the boiling liquid flows out from the liquid outlet of the liquid outlet tank.

The beneficial effects of the present invention are:

One side of the water receiving box of the present invention is provided with a water shortage protection device that communicates with the bottom of the inner cavity of the heating pipe to facilitate sensing that the temperature exceeds the set value when the heating pipe is short of water; the temperature in the heating pipe corresponding to the water shortage of the lower liquid pipe rises rapidly and When the temperature exceeds the set value, the boss on the temperature sensing sheet and the L-shaped sensor head will transmit the change of thermal expansion to the water shortage thermostat, and the power supply of the heating tube will be disconnected through the water shortage thermostat. Protection function; when the heating tube is not short of water and is used again for heating, it is necessary to manually press the waterproof button to restore the water shortage protection function of the water shortage thermostat.

In addition, a cooling and heating control device is installed on the top of the heating tube to control whether the heating tube is heated, and to control the temperature of the water outlet from the heating tube by controlling the size of the liquid flow out of the heated tube, and to control the start of the driving pump through the first roller switch to achieve non-heating The cold liquid flows out automatically from the liquid discharge port of the liquid outlet tank, and at the same time, the start of the heating tube is controlled by the second roller switch. During the continuous rotation of the knob, the flow baffle at the lower end of the temperature regulating column matches the valve hole of the flow channel valve. The channel gradually decreases until it is completely closed, and the temperature gradually rises until the boiling liquid flows out from the discharge port of the liquid outlet tank, that is, by controlling the height and size of the overflow water level formed by the valve channel relative to the overflow tank, and then controlling the heating pipe The size of the supplied water flow, so as to control the heating time of the water flow in the heating tube to control the temperature of the liquid, and realize fine quantitative control. The structure is simple, and the temperature of the liquid can be adjusted at any time, which is convenient and practical.

【Description of drawings】

Fig. 1 is a schematic diagram of an explosion structure of the present invention;

Figure 2 is a schematic diagram of the enlarged structure of the cooling and heating control device of the present invention after removing the top cover

Fig. 3 is the three-dimensional structure schematic diagram of the present invention;

Fig. 4 is a three-dimensional structural schematic diagram of removing the base of the present invention;

Fig. 5 is a three-dimensional structural schematic diagram of removing the base of the present invention;

Fig. 6 is a three-dimensional structural schematic view of the base and the water shortage protection device of the present invention after explosion.

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

【detailed description】

An instant water boiler with water shortage protection function, as shown in Figure 1 and Figure 2, comprising a liquid supply tank 1, a base 10, a driving pump 2 and a heating pipe 3, and the driving pump 2 is installed at the bottom of the liquid supply tank 1; There is a liquid outlet at the bottom of the liquid supply tank 1, and a supply pipe 4 is provided between the liquid outlet and the inlet of the driving pump 2 to facilitate the supply of liquid in the liquid supply tank 1, and the outlet of the driving pump 2 is connected with a pipe extending into the liquid supply tank. 1 and pump the liquid in the liquid supply tank 1 to the pump liquid pipe 5 at the top of the liquid supply tank 1; there is also an overflow with a balance water level opening 60 on the top of the liquid supply tank 1 to facilitate the overflow of the liquid pumped by the pump liquid pipe 5 Groove 6, the outlet of the pump liquid pipe 5 is connected to one side of the bottom of the overflow tank 6, and the other side of the bottom of the overflow tank 6 is connected to extend from the bottom of the liquid supply tank 1 and communicate with the bottom of the heating pipe 3 The inner liquid is introduced into the lower liquid pipe 7 in the heating pipe 3, and the top of the heating pipe 3 is connected with a cooling and heating control device that controls whether the heating pipe 3 is heated and controls the temperature of the water outlet of the heating pipe 3 by controlling the size of the liquid flow that flows out after heating 8. A water receiving box 9 is provided between the lower liquid pipe 7 and the heating pipe 3 to facilitate the sealed communication between the two.

As shown in Figures 1 and 2, the cooling and heating control device 8 includes a liquid outlet tank 80, a top cover 81, a first roller switch 82, a second roller switch 83, a knob 84, a disc switch 85 with a cam structure and an adjusting wheel. The temperature column 86, the bottom rear side of the liquid outlet tank 80 is provided with a liquid guide port 800 that communicates with the top of the heating pipe 3 and is lower than the balance water level opening 60 of the overflow tank 7 in the horizontal direction, and the bottom front side of the liquid outlet tank 80 A discharge port 801 is provided to facilitate the automatic flow of liquid, and in the liquid discharge tank 80 between the discharge port 801 and the liquid guide port 800, there is also a water outlet that is flush with the balance water level opening 60 of the overflow tank in the horizontal direction. The overflow plate 802, the center of the overflow plate 802 forms a flow channel valve hole 803 that cooperates with the flow baffle plate 860 arranged at the lower end of the temperature regulating column 86 and controls whether the liquid guide port 800 supplies liquid to the liquid discharge port 801 and the flow rate. The disc switch 85 of the cam structure is pinned to the upper part of the temperature adjustment column 86 positioned and sealed by the top cover 81, and the first roller switch 82 and the second roller switch 83 are respectively connected to the positioning position provided on the lower side of the disc switch 85 with the cam structure. The convex part 850 is fit and fixedly installed on the top cover 81 , and the knob 84 is installed on the top of the temperature adjustment column 86 and drives the disc switch 85 with a cam structure and the flow baffle 860 to rotate coaxially.

Turn the knob 84 to work, and when the first roller switch 82 contacted by the disc switch 85 with a cam structure disengages from the positioning convex part 850 and presses against its outer edge, the first roller switch 82 starts to drive the pump 2 to pump liquid and adjust the temperature at the same time. The flow baffle plate 860 at the lower end of the column 86 is fully opened with the flow passage valve hole 803 at the center of the overflow plate 802, and the unheated cold liquid flows out from the discharge port 801 of the liquid outlet tank 80 automatically; continue to turn the knob 84, When the second roller switch 83 in contact with the disc switch 85 with a cam structure also disengages from the positioning protrusion 850 and presses against the outer edge of the disc switch 85 with a cam structure, the second roller switch 83 starts the heating tube 3 to supply power. At the same time, the valve path matched by the flow baffle 860 and the flow channel valve hole 803 gradually decreases until it is completely closed, and the liquid passing through the flow channel valve hole 803 gradually Reduce the flow of liquid with gradually rising temperature. When the valve channel matched by the flow baffle plate 860 and the flow channel valve hole 803 is completely closed, the water heated to boiling from the heating element 3 boils and overflows through the overflow plate 802, and the liquid flows out. The liquid discharge port 801 of the tank 80 flows out the boiling liquid.

As shown in Fig. 1, Fig. 3 to Fig. 6, on the side of the water receiving box 9, there is a water shortage protection device 11 which communicates with the bottom of the inner cavity of the heating pipe 3 to facilitate sensing that the temperature exceeds the set value when the heating pipe 3 is short of water. The water shortage protection device 11 includes a temperature sensing sheet 110, a water shortage thermostat 111 and a waterproof button 112. The temperature sensing sheet 110 is provided with a boss 110a protruding to one side, and the boss 110a is extended and connected with an L-shaped The sensing head 110b, the side wall of the water receiving box 9 is provided with a circular sensing hole 90 for the L-shaped sensing head 110b on the temperature sensing sheet 110 to extend into the bottom of the inner cavity of the heating tube 3, and the corresponding water shortage thermostat 111 is installed on the rear side of the temperature sensing sheet 110, and the waterproof button 112 is installed on the water shortage thermostat 111; the boss 110a of the temperature sensing sheet 110 is circumferentially matched with the circular sensing hole 90 on the side wall of the water receiving box 9 And also be provided with the silicone ring 113 that is convenient to seal connection to prevent water leakage between the two.

Manually turn the knob 84, the first roller switch 82 starts to drive the pump 2 to pump liquid, and at the same time the second roller switch 83 starts the heating tube 3 to supply power, drives the pump 2 to draw water and heats the heating tube 3 at the same time, and the lower liquid tube 7 is short of water. When the temperature in the heating tube 3 rises rapidly and the temperature exceeds the set value, the temperature sensing sheet 110 will expand and transmit the change to the water shortage thermostat 111, and the water shortage thermostat 111 senses it through the temperature sensing sheet 110. When the temperature inside the heating tube 3 exceeds the set value, disconnect the power supply of the heating tube 3 to play a protective role. When the heating tube is not short of water and reheats, you need to manually press the waterproof button to restore the water shortage protection function of the water shortage thermostat. .

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. All obvious changes made according to the shape, structure and principle of the present invention, and other changes that do not depart from the essence of the present invention , should be covered within the protection scope of the present invention.

Claims (5)

1. a kind of water-shortage protection device, including heating tube and water spilage tray, water spilage tray are installed on the bottom of heating tube；Its feature exists In：

The water spilage tray side be provided with connect with the intracavity bottom of heating tube be easy to sense heating tube hydropenia when temperature exceed setting The temperature sensing piece of value, hydropenia temperature controller and waterproof press-button, the temperature sensing piece are provided with the boss to side protrusion, boss Extension is connected with L-shaped sensing head, and water spilage tray side wall is provided with the inner chamber that the L-shaped sensing head being easy on temperature sensing piece stretches into heating tube The sensing hole of bottom, corresponding hydropenia temperature controller are installed on rear side of temperature sensing piece, and the waterproof press-button is installed on hydropenia temperature control On device；

When temperature in heating tube is lifted rapidly and temperature exceedes setting value, change is passed to hydropenia by temperature sensing piece expanded by heating On temperature controller, hydropenia temperature controller is sensed by temperature sensing piece when the temperature in heating tube exceedes setting value and disconnects heating tube Power supply plays a protective role, and heating tube needs to be manually pressed by waterproof press-button when hydropenia does not heat use again to make hydropenia temperature controller extensive Multiple excessive low water level protection function.

2. a kind of water-shortage protection device according to claim 1, it is characterised in that the boss of the temperature sensing piece with connect The sensing hole of water box side wall circumferentially coordinates and is additionally provided between the two to be easy to be tightly connected the silica gel ring for preventing leak.

3. a kind of Instant heating type boiler, including liquid supply box, base, transfer tube and heating tube, transfer tube are installed in liquid supply box；Its It is characterised by：

The liquid supply box bottom offer be provided between the import of liquid outlet, liquid outlet and transfer tube be easy to liquid supply box in liquid supply The supply pipe given, the outlet of transfer tube is connected with stretches into liquid supply box and by the pump liquid at the top of liquid pump in liquid supply box to liquid supply box Pipe；

The overflow launder that the liquid for being easy to liquid pumping pipe to pump into overflows is additionally provided with the top of the liquid supply box, liquid pumping pipe outlet is connected to overflow The bottom side of groove, the bottom opposite side of overflow launder are connected with from liquid supply box bottom to stretch out and are connected with heating bottom of the tube and by overflow In groove, liquid is directed into the lower liquid pipe in heating tube, is additionally provided with and is easy to the company of sealing between the two between the lower liquid pipe and heating tube Logical water spilage tray；

The water spilage tray side be provided with connect with the intracavity bottom of heating tube be easy to sense heating tube hydropenia when temperature exceed setting The water-shortage protection device of value, the water-shortage protection device include temperature sensing piece, hydropenia temperature controller and waterproof press-button, and the temperature is passed Sense piece is provided with the boss to side protrusion, and boss extension is connected with L-shaped sensing head, and water spilage tray side wall is provided with is easy to temperature sensing L-shaped sensing head on piece stretches into the sensing hole of the intracavity bottom of heating tube, and corresponding hydropenia temperature controller is installed on temperature sensing piece Rear side, the waterproof press-button are installed on hydropenia temperature controller；The work that transfer tube is drawn water with heating tube, lower liquid pipe hydropenia are corresponding When temperature in heating tube is lifted rapidly and temperature exceedes setting value, change is passed to hydropenia temperature control by temperature sensing piece expanded by heating On device, hydropenia temperature controller senses the power supply that heating tube is disconnected when the temperature in heating tube exceedes setting value by temperature sensing piece Play a protective role, heating tube needs to be manually pressed by when hydropenia does not heat use again waterproof press-button makes hydropenia temperature controller recover to lack Water conservation function.

4. a kind of Instant heating type boiler according to claim 3, it is characterised in that temperature is passed on the water-shortage protection device The boss of sense piece circumferentially coordinates and is additionally provided between the two to be easy to be tightly connected with the sensing hole of water spilage tray side wall prevents leak Silica gel ring.

5. a kind of Instant heating type boiler according to claim 3, it is characterised in that the heating tube top is connected with control Heating tube whether heat and after controlling heating trickle liquid stream size controlling the cold and hot of heating tube leaving water temperature Control device, the cold and hot control device comprising liquid outlet groove, top cover, the first roller switch, the second roller switch, knob, with convex The disc switch and homoiothermic post of wheel construction, the bottom rear of liquid outlet groove are provided with In the fluid guidance port of the balance water level opening of overflow launder, the lower front of liquid outlet groove is provided with the tap hole for being easy to automatic discharging function, It is additionally provided with liquid outlet groove between the tap hole and fluid guidance port concordant with the balance water level opening of overflow launder in the horizontal direction Overflow plate, overflow plate be centrally formed one with homoiothermic post lower end arrange flow baffle fit and whether control fluid guidance port to tapping The runner valve opening of confession liquid and uninterrupted, the disc switch with cam structure are pinned at the homoiothermic for being positioned and sealed by top cover Post top, the first roller switch and the second roller switch respectively with the disc switch with cam structure on the downside of the convex that arranges Portion is fixedly installed on top cover with merging, and the knob is installed on homoiothermic capital end and drives the disc switch with cam structure And the motion of flow baffle plate coaxial rotating；

Turning knob, the first roller switch that the disc switch with cam structure is touched from positioning convex portion depart from and and its When outer rim pressure is touched, the first roller switch starts transfer tube pump liquid, while the flow baffle plate of homoiothermic post lower end and overflow plate center The valve road that runner valve opening coordinates is fully opened, and the cold liquid not heated is flowed out automatically from the tap hole of liquid outlet groove；It is rotated further rotation Button, the second roller switch touched with the disc switch with cam structure also from positioning convex portion depart from and with cam structure Disc switch outer rim pressure touch when, the second roller switch start heating tube powered operation, while flow baffle plate is matched somebody with somebody with runner valve opening The valve road of conjunction is progressively smaller until and completely closes, flows out temperature from the tap hole of liquid outlet groove and gradually rise until the liquid of boiling.