Water level detection structure

Abstract

The utility model relates to domestic appliance technical field, especially point to a water level detection structure, including host computer, water cup and probe, be equipped with cavity and the opening that links this cavity on the host computer, the probe is hinged with host computer, thereby makes the probe swingable and hang in the cavity, when the water cup is loaded or extracted the cavity from the opening on the host computer, the cup mouth of water cup can push the probe and swing along the moving direction of water cup, thereby makes the probe and enters or comes off the water cup, a water level detection structure of the utility model, the probe is independently and swingably installed on the host computer, when the water cup is inserted into the cavity, the probe can swing and avoid the water cup and then hang in the inner chamber of water cup, thereby detect the water level in the water cup, same when the water cup is extracted, the probe can swing and separate from the water cup, thereby avoid the influence of host computer waste water impurity and other factors, and the detection effect is stable and reliable, and the overall structure is simple and compact.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a water level detection structure. Background Technology

[0002] Currently, there are many household food processing appliances available, such as blenders, soy milk makers, and juicers. Soy milk makers, in particular, have grinding and cooking functions and can be used to make soy milk, as well as other foods. Existing high-end fully automatic soy milk makers all feature one-button operation, automatic cleaning, and drying functions, making them very convenient to use. However, this increased automation also increases the possibility of human error. For example, if too much water is added to the blending cup, wastewater will overflow during drainage, requiring water level detection and control.

[0003] Chinese patent CN105650805A discloses a water level detection device, comprising: a guide rail arranged in a water container for collecting condensate generated during dehumidification; a sensing object inserted into the guide rail and configured to rise above the condensate collected in the water container; and a sensor arranged in the body of a dehumidifier and configured to sense movement of the sensing object, wherein the water container is installed in and detached from the body of the dehumidifier; wherein the water level in the water container is set to any one of at least two different water levels depending on the insertion direction of the sensing object into the guide rail.

[0004] In the aforementioned prior art, the sensing object is integrally mounted and detached within the water container, and its movement trajectory is controlled on a guide rail to match the sensor's detection. The problem with this prior art is that the sensing object, positioned within the water container, needs to be able to move flexibly on the guide rail to adapt to changes in water level. However, the wastewater discharged from the soymilk maker contains impurities such as soybean residue and skins, making it difficult to thoroughly clean the guide rail, and causing the sensing object to easily become stuck and malfunction. Therefore, the prior art requires further improvement and development. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a water level detection structure that is structurally sound, simple, and reliable.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] The present invention discloses a water level detection structure, comprising a main unit, a water cup, and a probe. The main unit has a cavity and an opening communicating with the cavity. The probe is hinged to the main unit, thereby allowing the probe to be swung and suspended in the cavity. When the water cup is inserted into or removed from the cavity through the opening on the main unit, the mouth of the water cup can push the probe to swing along the direction of movement of the water cup, thereby allowing the probe to extend into or retract from the water cup.

[0008] The main body adopts a drawer-type structure, with the cavity and opening located at the bottom of the main unit. The water cup can be inserted into or removed from the cavity horizontally. Specifically, the upper end of the probe is rotatably connected to the main unit, and the probe hangs naturally vertically in the normal state, so that the lower end of the probe extends into the cavity.

[0009] When the water cup is inserted into the cavity, the probe interferes with the rim of the cup. The probe can swing along the direction of the cup's movement, allowing the cup to push the probe through its rim and smoothly insert it into the cavity. Once the interference disappears, the probe returns to its natural hanging state. At this point, the lower end of the probe extends into the water cup, and is positioned at the highest water level. The probe then detects the water level inside the cup. The specific detection principle of the probe will be detailed later.

[0010] Of course, the water cup will also interfere with the probe when it is pulled out. At this time, the probe will swing in the opposite direction to avoid affecting the pulling out of the water cup.

[0011] It is understood that the probe is connected to the control circuit of the host. When the water level in the cup rises and touches the probe, the probe can send a signal to the control circuit to stop the host from working and to issue a warning sound, so as to prevent the water in the cup from overflowing.

[0012] According to the above scheme, the probe includes a needle base and two probes. The needle base is provided with two vertical insertion holes spaced apart from each other, and the two probes are respectively inserted into the corresponding vertical insertion holes. The upper end of the probe is provided with a horizontal folding arm, and the two horizontal folding arms are rotatably connected to the main unit, so that the lower ends of the needle base and the two probes are suspended in the cavity.

[0013] Specifically, the needle holder is used to install the probes. The two probes form positive and negative poles respectively and are connected to the control circuit of the host through a circuit. The lower end of the probe extends out of the lower end of the needle holder. When the water level in the cup rises and contacts the probe, a circuit is formed between the two probes. The control circuit sends a signal to stop the host from draining water and prevent the water in the cup from overflowing.

[0014] According to the above scheme, the upper end of the needle holder has two notches, which are respectively connected to the corresponding vertical insertion holes. The horizontal folding arm extends out of the notch from the needle holder and is rotatably connected to the main unit. Generally, in order to enable the probe to be rotatably connected to the main unit, two rotating shafts can be provided at the upper end of the needle holder for rotatable connection to the main unit. The probe needs to be connected to the control circuit through wiring. Preferably, in this utility model, two notches are opened horizontally on the needle holder to connect to the vertical insertion holes. The upper end of the probe extends (horizontally) from the needle holder through the horizontal folding arm and is rotatably connected to the main unit, thereby allowing the probe to be electrically connected to the control circuit through the horizontal folding arm.

[0015] According to the above scheme, this utility model also includes a fixing cover. Two protruding buckles are provided on the outer wall of the upper end of the needle holder. Edge-binding buckles are provided on both sides of the fixing cover. The fixing cover covers the upper surface of the needle holder, forming a notch and a hole. The two edge-binding buckles are paired and connected with the corresponding protruding buckles. The notch at the upper end of the needle holder allows the horizontal folding arm to extend laterally out of the needle holder. For ease of assembly, the vertical insertion hole and the probe are slidably fitted with a hole-shaft. Therefore, a fixing cover is needed at the upper end of the needle holder to close the notch and form a hole. The horizontal folding arm passes through the fixing cover and the notch forming hole to prevent the probe from falling off the needle holder. Furthermore, the horizontal folding arm passing through the notch forming hole allows it to act as a hinge shaft on the needle holder, forming a rotatable connection with the main unit.

[0016] According to the above scheme, a base is provided above the cavity, and the base is fixedly connected to the main unit. The base is provided with an assembly port and two guide grooves, which are respectively located on the left and right sides of the assembly port. The upper end of the needle holder passes through the assembly port, and the two horizontal folding arms are rotatably inserted into the corresponding guide grooves. The main unit has a plate wall to construct the cavity, and the base is set on the plate wall above the cavity. The base is provided with an assembly port so that the needle holder can be inserted into the cavity from above, and the two horizontal folding arms on the needle holder pass through the guide grooves. The horizontal folding arms and the guide grooves are rotatably connected, so that the probe can swing as a whole on the base.

[0017] According to the above scheme, conductive strips are provided on both the left and right sides of the base, and two horizontal folding arms are respectively mounted on the corresponding conductive strips. As mentioned above, the probe is connected to the control circuit on the host via wiring. Typically, the probe is connected to the wiring by soldering, but the wiring can affect the probe's sensitivity. By setting conductive strips on both sides of the base, the horizontal folding arms are mounted on the conductive strips to form a contact electrical connection. The horizontal folding arms are restricted by the guide groove, forming a rotational engagement with both the base and the conductive strips. After the wiring is soldered to the conductive strips, the probe and the control circuit are electrically connected, which does not affect the probe's sensitivity.

[0018] According to the above scheme, the base is provided with two wall plates, which are symmetrically arranged on the front and rear sides of the assembly port; both wall plates are set at an angle C with the vertical central axis of the assembly port, so that the needle holder can swing back and forth between the two wall plates. The base and the two wall plates form an "eight" shape, and the needle holder can swing within this "eight" shape, where the included angle C is the unidirectional swing stroke angle of the needle holder.

[0019] According to the above scheme, the wall panel is provided with a deep-hole terminal. After the needle seat is installed on the base, a cover can be installed on the deep-hole terminal to cover the upper surface of the base to protect the probe. Furthermore, the hole on the deep-hole terminal can penetrate the wall panel, and a trigger element can be set on the deep-hole terminal. By detecting the swing state of the probe, the presence of a water cup in the cavity can be detected.

[0020] According to the above scheme, the water cup includes a purified water cup and a wastewater cup, both of which can be inserted into or removed from the cavity through the opening on the main unit. The probe can detect the water level inside the cup, offering good compatibility and versatility. If a purified water cup is installed inside the cavity, the probe can detect the amount of beverage prepared by the main unit; if a wastewater cup is installed inside the cavity, the probe can detect the amount of wastewater discharged by the main unit.

[0021] This utility model discloses a water level detection structure in which the probe is independently and swingably mounted on the main unit. When a water cup is inserted into the cavity, the probe can swing and avoid the water cup before hanging in the inner cavity of the water cup to detect the water level in the water cup. Similarly, when the water cup is pulled out, the probe can swing and detach from the water cup, thereby avoiding the influence of impurities and other factors in the wastewater of the main unit. The detection effect is stable and reliable, and the overall structure is simple and compact. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the probe structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the disassembled probe structure of this utility model;

[0025] Figure 4 yes Figure 1 Enlarged structural diagram of section A in the middle;

[0026] Figure 5 This is a schematic diagram of the probe's movement when the water cup is inserted and removed according to this utility model.

[0027] In the picture:

[0028] 1. Main unit; 2. Probe; 11. Water cup; 12. Cavity; 13. Base; 14. Conductive strip; 131. Assembly port; 132. Guide groove; 133. Wall panel; 134. Deep hole terminal; 21. Needle seat; 22. Probe; 23. Fixing cover; 211. Vertical insertion hole; 212. Notch; 213. Protruding buckle; 221. Horizontal folding arm; 231. Edge binding buckle. Detailed Implementation

[0029] The technical solution of this utility model will be described below with reference to the accompanying drawings and embodiments.

[0030] like Figure 1-5As shown, the water level detection structure of this utility model includes a main unit 1, a water cup 11, and a probe 2. The main unit 1 is provided with a cavity 12 and an opening communicating with the cavity 12. The upper end of the probe 2 is hinged to the main unit 1, so that the probe 2 can be swung and suspended in the cavity 12. When the water cup 11 is inserted into or removed from the cavity 12 through the opening on the main unit 1, the mouth of the water cup 11 can push the probe 2 to swing along the moving direction of the water cup 11, so that the probe 2 extends into or retracts from the water cup 11.

[0031] The main body adopts a drawer-type structure, with the cavity 12 and opening located at the bottom of the host 1. The water cup 11 can be inserted into or removed from the cavity 12 in a horizontal direction. Specifically, the upper end of the probe 2 is rotatably connected to the host 1, and the probe 2 is naturally suspended vertically in normal conditions, so that the lower end of the probe 2 extends into the cavity 12.

[0032] When the water cup 11 is inserted into the cavity 12, the probe 2 will interfere with the mouth of the water cup 11. The probe 2 can swing along the direction of movement of the water cup 11, allowing the water cup 11 to push the probe 2 through its mouth and smoothly insert it into the cavity 12. When the interference disappears, the probe 2 returns to its natural hanging state. At this time, the lower end of the probe 2 extends into the water cup 11, and the lower end of the probe 2 is at the highest water level in the water cup 11. The probe 2 detects the water level in the water cup 11. The specific detection principle of the probe 2 will be detailed later.

[0033] Of course, when the water cup 11 is pulled out, it will also interfere with the probe 2. At this time, the probe 2 will swing in the opposite direction to avoid affecting the pulling out of the water cup 11.

[0034] It is understood that the probe 2 is connected to the control circuit of the host 1. When the water level in the cup 11 rises and touches the probe 2, the probe 2 can send a signal to the control circuit to stop the host 1 from working and to issue a prompt sound to prevent the water in the cup 11 from overflowing.

[0035] The probe 2 includes a needle base 21 and two probes 22. The needle base 21 has two vertical insertion holes 211 spaced apart from each other, and the two probes 22 are respectively inserted into the corresponding vertical insertion holes 211. The upper end of the probe 22 is provided with a horizontal folding arm 221, and the two horizontal folding arms 221 are rotatably connected to the main unit 1, so that the lower ends of the needle base 21 and the two probes 22 are suspended in the cavity 12.

[0036] Specifically, the needle holder 21 is used to install the probe 22. The two probes 22 form positive and negative poles respectively and are connected to the control circuit of the host 1 through a line. The lower end of the probe 22 extends out of the lower end of the needle holder 21. When the water level in the water cup 11 rises and contacts the probe 22, a circuit is formed between the two probes 22. The control circuit sends a signal to the host 1 to stop draining water and prevent the water in the water cup 11 from overflowing.

[0037] The upper end of the needle holder 21 has two notches 212, which are respectively connected to the corresponding vertical insertion holes 211. The horizontal folding arm 221 extends out of the needle holder 21 from the notches 212 and is rotatably connected to the host 1. Generally, in order to enable the probe 2 to be rotatably connected to the host 1, two rotating shafts can be provided at the upper end of the needle holder 21. The probe 22 needs to be connected to the control circuit through wiring. In this utility model, it is preferred that two notches 212 are opened horizontally on the needle holder 21 to connect to the vertical insertion holes 211. The upper end of the probe 22 extends (horizontally) out of the needle holder 21 through the horizontal folding arm 221 and is rotatably connected to the host 1, so that the probe 22 can be electrically connected to the control circuit through the horizontal folding arm 221.

[0038] This utility model also includes a fixing cover 23. Two protruding buckles 213 are provided on the outer wall of the upper end of the needle seat 21. Both sides of the fixing cover 23 are provided with edge buckles 231. The fixing cover 23 covers the upper end surface of the needle seat 21, forming a hole in the notch 212. The two edge buckles 231 are paired and connected with the corresponding protruding buckles 213. The notch 212 at the upper end of the needle seat 21 allows the horizontal folding arm 221 to extend laterally out of the needle seat 21. For ease of assembly, the vertical insertion hole 211 and the probe 22 are slidably fitted with a hole-shaft. Therefore, a fixing cover 23 needs to be provided at the upper end of the needle seat 21 to close the notch 212 and form a hole. The horizontal folding arm 221 passes through the fixing cover 23 and the hole formed by the notch 212 to prevent the probe 22 from falling off the needle seat 21. Furthermore, the horizontal folding arm 221 passes through the notch 212 forming hole, so that the horizontal folding arm 221 can serve as a hinge shaft on the needle seat 21 and form a rotatable connection with the main unit 1.

[0039] A base 13 is provided above the cavity 12, and the base 13 is fixedly connected to the main unit 1. The base 13 is provided with an assembly port 131 and two guide grooves 132. The two guide grooves 132 are respectively located on the left and right sides of the assembly port 131. The upper end of the needle holder 21 passes through the assembly port 131, and the two horizontal folding arms 221 are rotatably inserted into the corresponding guide grooves 132. The main unit 1 is provided with a plate wall to construct the cavity 12. The base 13 is provided on the plate wall above the cavity 12. The base 13 is provided with an assembly port 131 so that the needle holder 21 can be inserted into the cavity 12 from above, and the two horizontal folding arms 221 on the needle holder 21 pass through the guide grooves 132. The horizontal folding arms 221 and the guide grooves 132 are rotatably connected, so that the probe 2 can swing as a whole on the base 13.

[0040] Conductive strips 14 are provided on both the left and right sides of the base 13, and two horizontal folding arms 221 are respectively mounted on the corresponding conductive strips 14. As mentioned above, the probe 22 is connected to the control circuit on the host 1 via wiring. Normally, the probe 22 is connected to the wiring by soldering, but the wiring can affect the sensitivity of the probe 2. By providing conductive strips 14 on both sides of the base 13, the horizontal folding arms 221 are mounted on the conductive strips 14 to form a contact electrical connection. The horizontal folding arms 221 are restricted by the guide groove 132, forming a rotational engagement with both the base 13 and the conductive strips 14. After the wiring is soldered to the conductive strips 14, the probe 22 forms an electrical connection with the control circuit, which does not affect the sensitivity of the probe 2.

[0041] The base 13 is provided with two wall plates 133, which are symmetrically arranged on the front and rear sides of the assembly port 131. Both wall plates 133 are set at an angle C with the vertical central axis of the assembly port 131, so that the needle holder 21 can swing back and forth between the two wall plates 133. The base 13 and the two wall plates 133 form an "eight" shape, and the needle holder 21 can swing within this "eight" shape. The included angle C is the unidirectional swing stroke angle of the needle holder 21.

[0042] The wall panel 133 is provided with a deep hole terminal 134. After the needle seat 21 is installed on the base 13, a cover can be installed on the deep hole terminal 134 to cover the upper end face of the base 13 to protect the probe 2. Furthermore, the hole on the deep hole terminal 134 can penetrate the wall panel 133. A trigger element is provided on the deep hole terminal 134. By detecting the swing state of the probe 2, it is possible to detect whether there is a water cup 11 in the cavity 12.

[0043] The water cup 11 includes a purified water cup and a wastewater cup, both of which can be inserted into or removed from the cavity 12 through the opening on the main unit 1. The probe 2 can detect the water level inside the water cup 11, exhibiting good compatibility and versatility. If a purified water cup is installed inside the cavity 12, the probe 2 can detect the amount of beverage prepared by the main unit 1; if a wastewater cup is installed inside the cavity 12, the probe 2 can detect the amount of wastewater discharged by the main unit 1.

[0044] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

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