WO2010115310A1

WO2010115310A1 - Device for measuring liquid

Info

Publication number: WO2010115310A1
Application number: PCT/CN2009/071227
Authority: WO
Inventors: 陈进钿
Original assignee: Chen Ching-Dien
Priority date: 2009-04-10
Filing date: 2009-04-10
Publication date: 2010-10-14
Also published as: DE212009000170U1

Abstract

A device for measuring liquid includes a stable support (12), a floating means (13) and a sensing means (14). The stable support (12) and the floating means (13) are provided within a water tank. The sensing means (14) is provided outside the water tank and in the corresponding position with the floating means (13). The floatage of the floating means (13) is varied by the level of the water in the water tank so that the floating means (13) rotates and activates the sensing means (14) in the magnetic manner. Thereby the sensing means (14) can send out a signal that represents whether the water is enough or not.

Description

Liquid detecting device

Technical field

The invention relates to a liquid detecting device, and more particularly to a magnetic induction trigger which can be set in a water tank and is changed by buoyancy, and a signal generated by the induction trigger is transmitted to the display end as a warning to be replenished. . Background technique

At present, the water tank, the coffee machine kettle and even the car water tank have water quantity detecting devices. The purpose of the water quantity detecting device is to warn the user that when the water level of the water tank or the water bottle is insufficient, the water source needs to be supplemented to maintain the water quantity to avoid damage caused by water shortage of the machine tool.

Please refer to the "Water Tank Sensing Bar Improvement" of Taiwan Patent Application No. 097217967, which includes: a metal joint including an inner fixing member and a stud nut, and the center of the inner fixing member and the stud nut is provided a through hole, a through hole for the sensing rod to be inserted therein; a sensing rod, the surface of the sensing rod is partially covered with a rubber sleeve, and the lower end of the sensing rod is a sensing portion, and the sensing portion is exposed by metal Externally, for use as a water level sensing.

Continuing to refer to the "water level sensing alarm device" of Taiwan Patent Application No. 096207700, which comprises: a housing having a viewing portion on one side thereof; at least one detecting unit disposed on the housing; a display and alarm unit, The housing is electrically connected to the detecting unit, and is displayed and alerted by the viewing portion; a sealing unit that seals the display and alarm unit; and a fixing unit that is disposed on the other surface of the housing.

Although the above two patents have the function of measuring the water level and generating the warning, the first two patents are common to the electronic sensing device. If the electronic sensing device is used for immersing in the liquid, it must have a good sealing structure, if there is a little liquid. Infiltration into the sensing device can easily cause damage to the electronic structure, and if it is immersed in a liquid with added ingredients (such as coffee, water tank coolant, etc.), soak for a long time. It is more likely to damage the sealing structure and cause liquid to penetrate. Summary of the invention

In view of the above, it is a primary object of the present invention to provide a magnetic sensing device that generates a magnetically sensitive trigger by a change in buoyancy, and a signal generated by the inductive trigger is transmitted to the display terminal as a liquid detecting device for alerting the water to be replenished.

In order to achieve the above object, the liquid detecting device of the present invention comprises a stabilizing seat, a floating device and an inductive device, wherein the stabilizing seat and the floating device are disposed in a water tank, the sensing device is disposed at a bottom of the water tank and corresponds to a position of the floating device, and the sensing device Having a magnetic sensing portion that is magnetically triggered to transmit a signal, the stable seat is provided with an abutting bar that is movable against the floating device;

The floating device is divided into two parts: a first end portion and a second end portion. The first end portion is heavier than the second end portion in a waterless state of the water tank, and the first end portion has a buoyancy in a water state of the water tank. The two ends are strong, and the floating device is provided with an abutting groove for the protruding rod to extend between the first end portion and the second end portion, the bottom surface of the first end portion has a first bottom surface, and the bottom surface of the second end portion has a first bottom portion a bottom surface having a swing angle between the first bottom surface and the second bottom surface, wherein the second end portion is provided with a magnetic member on the bottom surface;

Thereby, when the water level of the water tank is higher than the floating device, the buoyancy of the first end portion is stronger than that of the second end portion, the first end portion is floating upward at one end, and the other end is pressed by the abutting rod to generate a lever principle. The two end portions are swung downward, so that the second bottom surface is close to the bottom of the water tank, so that the magnetic member is close to the magnetic sensing portion to generate magnetic induction, and the sensing device emits a signal indicating sufficient water level;

When the water level of the water tank is lower than the floating device, the first end portion of the first end portion is restored to the bottom of the water tank by the weight of the first end portion, and the other end is driven by the swinging angle to generate the lever principle. The second end portion swings upward to disengage the second bottom surface from the bottom of the water tank, so that the magnetic member is away from the magnetic sensing portion and loses magnetic induction, and the sensing device emits a signal indicating that the water level is insufficient.

The liquid detecting device of the present invention is disposed outside the water tank by the electronic sensing structure, and the magnetic triggering device is disposed in the water tank as an induction trigger for changing the water level of the water tank, so as to prevent the electronic device from being immersed in the liquid, thereby reducing structural damage, The possibility of a failure. The invention provides an induction device with an electronic structure outside the water tank, and a floating device without an electronic structure is disposed inside the water tank, and the water level of the water tank affects the buoyancy of the floating device, so that the floating device can swing and trigger the sensing device, therefore, the present invention The invention relates to a water level sensing device which is arranged in a box with respect to an electronic structure, and has the advantages that it is not easily damaged and is not prone to failure. DRAWINGS

Figure 1 is a perspective exploded view of the liquid detecting device of the present invention;

1A is a schematic cross-sectional view showing a strut of a liquid detecting device of the present invention;

2 is a schematic perspective view of a floating device of the liquid detecting device of the present invention;

Figure 3 is a schematic cross-sectional view showing a floating device of the liquid detecting device of the present invention;

4 is a top plan view showing the setting state of the floating device of the liquid detecting device of the present invention:

Figure 5 is a perspective view showing the arrangement state of the liquid detecting device of the present invention;

Figure 6 is a view showing an embodiment of a liquid detecting device of the present invention applied to a coffee machine;

Figure 7 is a schematic view showing the state of water immersion of the liquid detecting device of the present invention;

Fig. 8 is a schematic view showing the state of no water immersion of the liquid detecting device of the present invention.

Description of the reference numerals

11 partition 111 setting space

12 Stabilizer seat 121

13 Floating devices 131

132 second end 133 abutment

134 first bottom surface 135 second bottom surface

136 swing angle 137 magnetic parts

138 rib 14 induction device

141 Magnetic Sense detailed description

The invention relates to a liquid detecting device which is arranged in a water tank and generates a magnetic induction trigger by a change of buoyancy, and a signal generated by the induction trigger is transmitted to the display end as a warning for requiring water supply, please Referring to FIG. 1 to FIG. 6, the liquid detecting device comprises a partition 11, a stabilizer 12, a floating device 13, and an inductive device 14;

The partition 11 is disposed in the water tank, and the partition 11 can distinguish the installation space 111 in the water tank. The installation space 111 is provided in the floating device 13 , and the stable seat 12 is disposed on the upper edge of the partition 11 , and the stability is stable. The seat 12 is provided with an abutting rod 121 which is movable against the floating device 13 . The abutting end of the abutting rod 121 has an arc shape, and the sides of the rod 121 have a tapered shape to facilitate the application of the rod 121 . When inserting the top, it is possible to reduce the contact area of the side to obtain a lower coefficient of friction;

The floating device 13 is divided into two parts, a first end portion 131 and a second end portion 132. The floating device 13 is heavier than the second end portion 132 in the non-immersion state, and the floating device 13 is in the water immersed state. The lower end portion 131 has a stronger buoyancy than the second end portion 132. The floating device 13 is provided between the first end portion 131 and the second end portion 132 with an abutment groove 133 through which the abutting rod 121 extends. The slot area is larger than the slot bottom area, and a tapered slope is formed between the slot and the slot bottom. The slot formed by the abutment slot 133 has a narrow bottom shape, and the floating device 13 can pass through the abutment 121 to abut the slot 133. The bottom portion serves as an abutting pivot point and swings in a space released by the mouth portion 133. The bottom surface of the first end portion 131 has a first bottom surface 134, and the bottom surface of the second end portion 132 has a second bottom surface 135. a bottom surface 134 and a second bottom surface 135 between the swing angle 136, the second end portion 132 is provided with a magnetic member 137 on the bottom surface;

Two or more ribs 138 are disposed around the floating device 13 for maintaining a certain distance between the peripheral surface of the floating device 13 and the inner side of the partition 11 and the water tank, thereby reducing the buoyancy of the floating device 13. The coefficient of friction between the diaphragm 11 and the inner side of the water tank during swinging, so that the floating device 13 can perform the swing switching in a relatively stable manner;

The sensing device 14 has a magnetic sensing portion 141 that is magnetically triggered to transmit a signal, and the magnetic sensing portion The portion 141 is disposed outside the bottom of the water tank and corresponding to the position of the floating device 13 . The sensing device 14 can generate magnetic signal by the magnetic member 137 to generate magnetic induction near the magnetic sensing portion 141 , or can be separated from the magnetic sensing portion 141 by the magnetic member 137 . Losing the magnetic induction and emitting a signal indicating that the water level is insufficient; referring to FIG. 7, when the water tank is in a water state and the floating device 13 is immersed under the water surface, the first end portion 131 is affected by buoyancy and is floating upward. And the other end is pressed by the abutting rod 121 to generate the lever principle to drive the second end portion 132 to swing downward, so that the second bottom surface 135 is close to the bottom of the water tank, so that the magnetic member 137 approaches the magnetic sensing portion 141 to generate magnetic induction. The sensing device 14 emits a signal indicating that the water level is sufficient;

Continuing to refer to FIG. 8, when the water tank is in a waterless state and the floating device 13 is not immersed under the water surface, the first end portion 131 is affected by the weight such that the first bottom surface 134 abuts against the bottom of the water tank and passes through the swing angle 136. The lever principle causes the second end portion 132 to swing upward, so that the second bottom surface 135 is disengaged from the bottom of the water tank, so that the magnetic member 137 is away from the magnetic sensing portion 141 and loses magnetic induction, and the sensing device 14 emits a signal indicating that the water level is insufficient.

In the present invention, the electronic device 14 is disposed outside the water tank, and the floating device 13 without the electronic structure is disposed inside the water tank. The water level of the water tank affects the buoyancy of the floating device 13 so that the floating device 13 can swing to trigger the sensing device. 14. Therefore, the present invention is advantageous in that the water level sensing device that is disposed in the box with respect to the electronic structure has an advantage that it is not easily damaged and is less likely to malfunction.

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Claims

Claim

A liquid detecting device, comprising: a stabilizing seat, a floating device and an inductive device, wherein the stabilizing seat and the floating device are disposed in a water tank, and the sensing device has a magnetic trigger to transmit a signal a magnetic sensing portion, the magnetic sensing portion is disposed outside the bottom of the water tank and corresponding to the position of the floating device, and the stable seat is provided with an abutting bar that is movable against the floating device;

The floating device is divided into a first end portion and a second end portion in which the floating device is smaller in weight than the first end portion in the non-immersion state, and the buoyancy is less than the first end portion in the submerged state. a floating device, wherein the first end portion and the second end portion are provided with an abutting groove for the protruding rod to extend, the bottom surface of the first end portion has a first bottom surface, the first The bottom surface of the two end portions has a second bottom surface, and the first bottom surface and the second bottom surface have a swing angle therebetween, and the second end portion is provided on the bottom surface to be close to the magnetic sensing portion to generate magnetic induction. The sensing device emits a signal indicating that the water level is sufficient, and is capable of moving away from the magnetic sensing portion and losing the magnetic induction that causes the sensing device to emit a signal that the water level is insufficient.

2 . The liquid detecting device according to claim 1 , wherein the liquid detecting device further comprises a partition plate disposed in the water tank and distinguishing a setting space provided by the floating device. The stabilizing seat is disposed on an upper edge of the partition.

The liquid detecting device according to claim 1, wherein two or more ribs are provided around the floating device.

The liquid detecting device according to claim 1, wherein a groove area of the abutting groove is larger than a groove bottom area, and a tapered slope is formed between the notch and the groove bottom.

The liquid detecting device according to claim 1, wherein the abutting end of the abutting rod has an arc shape, and both sides of the shaft of the abutting rod have a tapered shape.