Pass-type liquid sensor, suction device and washing equipment

Abstract

The utility model relates to the technical field of household appliances, and particularly discloses a through-type liquid sensor, a suction device and washing equipment. The sensor comprises a detection cavity, a sensing unit and two probes, liquid in the detection cavity flows through the detection cavity in the horizontal direction; one end of each probe extends into the detection cavity from top to bottom in the vertical direction, the other end of each probe is arranged outside the detection cavity, and the two probes are arranged at intervals; the induction unit is electrically connected with the other ends of the two probes through wires and used for detecting the electric connection state between the two probes. According to the sensor, by means of the arrangement of the two probes, the condition of an electric signal path formed between the probes is detected, so that the condition of liquid in the detection cavity is obtained, the flowing state of the liquid is judged, the purpose of detecting the liquid is achieved, the structure of the through-type liquid sensor is simplified through the improvement, the production cost is reduced, and the production efficiency is improved. And the installation difficulty is reduced.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a through-type liquid sensor, a suction device, and a washing device. Background Technology

[0002] With the development of technology, users are increasingly demanding smart home appliances, and washing machines and dishwashers with automatic detergent dispensers are entering the market and being accepted by the public.

[0003] Currently, household appliances with automatic dispensing devices typically have a magnetic float inside the detergent dispenser. This float is used to sense a magnetic induction switch installed outside the dispenser to monitor the amount of detergent remaining in the dispenser and promptly remind the user to add more.

[0004] The above-mentioned detection methods are costly and have low measurement accuracy, which can easily lead to an increase in the amount of residual liquid in the storage box, thereby increasing the requirements for product space and position. In addition, this detection method is greatly affected by factors such as liquid density, viscosity and temperature, which can easily cause false alarms or the float to fail to float, seriously affecting the user experience and the product's performance. Utility Model Content

[0005] The purpose of this invention is to provide a through-type liquid sensor, a suction device, and a washing equipment to detect liquid flowing through the through-type liquid sensor, thereby achieving the purpose of liquid detection. The above improvements simplify the structure of the through-type liquid sensor, reduce production costs, and lower the difficulty of installation.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A through-type liquid sensor includes a detection chamber, a sensing unit, and two probes. Liquid flows horizontally through the detection chamber. One end of each probe extends vertically into the detection chamber from top to bottom, while the other end is placed outside the detection chamber. The two probes are spaced apart. The sensing unit is electrically connected to the other ends of the two probes via wires to detect the electrical connection status between the two probes.

[0008] As a preferred technical solution for a through-type liquid sensor, the through-type liquid sensor further includes a detection pipeline and a cavity cover detachably connected to the detection pipeline. The detection pipeline has a detection groove with an opening that faces vertically upward. The cavity cover selectively opens and closes the detection groove, and the detection groove and the cavity cover form the detection cavity. The probe passes through the cavity cover.

[0009] As a preferred technical scheme of the through type liquid sensor, the detection groove is further communicated with an inlet liquid pipeline and an outlet liquid pipeline, the liquid flows into the detection groove through the inlet liquid pipeline and is discharged from the detection groove through the outlet liquid pipeline.

[0010] As a preferred technical scheme of the through type liquid sensor, the detection pipeline is communicated with an inlet liquid pipeline extending in a horizontal direction, and the inlet liquid pipeline encloses the inlet liquid pipeline.

[0011] As a preferred technical scheme of the through type liquid sensor, the detection pipeline is communicated with an outlet liquid pipeline extending in a horizontal direction, and the outlet liquid pipeline encloses the outlet liquid pipeline.

[0012] As a preferred technical scheme of the through type liquid sensor, the cavity cover is provided with a cover groove, the probe penetrates through the groove bottom of the cover groove, and the inner groove wall of the cover groove is matched and fitted with the outer side wall of the detection pipeline.

[0013] As a preferred technical scheme of the through type liquid sensor, the through type liquid sensor further comprises a sealing ring, and the sealing ring is clamped between the opening of the detection groove and the groove bottom of the cavity cover.

[0014] The suction device comprises a first pipeline, a second pipeline, a liquid pumping pump and the through type liquid sensor, the liquid pumping pump is communicated with upstream devices of the suction device through the first pipeline, the liquid pumping pump is communicated with downstream devices of the suction device through the second pipeline, the first pipeline is provided with the through type liquid sensor, and the through type liquid sensor is used for detecting the liquid flowing through the first pipeline.

[0015] The washing equipment comprises a liquid storage device and the suction device, the liquid is a detergent, the liquid storage device is provided with a liquid collecting cavity and a liquid supply cavity, the liquid supply cavity is used for storing the detergent, and the liquid collecting cavity is used for discharging the detergent; and the suction device is used for conveying the detergent from the liquid supply cavity to the liquid collecting cavity.

[0016] As a preferred technical scheme of the washing equipment, the first pipeline comprises a plurality of connecting pipelines, the detection cavity is communicated with the liquid supply cavity through one connecting pipeline, and the detection cavity is communicated with the liquid pumping pump through another connecting pipeline.

[0017] The utility model discloses beneficial effects:

[0018] The through type liquid sensor can detect the situation of liquid in the detection cavity by detecting whether the electric signal path is formed between the two probes by using the electrically conductive characteristic of liquid. When liquid flows through the detection cavity, the two probes can form an electric signal path between the two probes by using the liquid as medium, and feedback to the sensing unit to output a signal that liquid is in the detection cavity. When there is no liquid in the liquid storage box or no liquid, air flows through the detection cavity, and the two probes cannot form an electric signal path by contacting the liquid, and feedback to the sensing unit to output a signal that there is no liquid in the detection cavity, prompting the user to add liquid or replace the solvent bottle. The probe is designed to extend into the detection cavity in the vertical direction from top to bottom, which reduces the probability of the probe being contaminated by liquid by accident, reduces the risk of false alarm or no alarm, and improves the accuracy of the detection result. The above design can judge the flow state of the liquid to achieve the detection purpose of the liquid without considering the pressure in the detection cavity. The through type liquid sensor is simple and convenient to set, and is suitable for various working environments, and has a wide application range. The above improvement simplifies the structure of the through type liquid sensor, reduces the production cost, and reduces the installation difficulty.

[0019] The suction device is provided with the through type liquid sensor on the first pipeline, which can provide early warning information when the upstream device is short of liquid. When the liquid pump pumps liquid, a small negative pressure is formed in the upper end cavity of the detection cavity. Even if the sealing performance of the detection cavity is poor, only air is supplemented into the cavity. The above design can reduce the risk of reducing the air chamber of the detection cavity and reduce the risk of failure of the detection device, thereby ensuring that the performance of the product is more stable.

[0020] The washing equipment is provided with the liquid collecting cavity and the liquid supply cavity on the liquid storage device, which can collect and store the detergent, and ensure that the detergent can be uniformly delivered out of the washing equipment according to the demand. The above improvement improves the flexibility of the washing equipment, expands the discharge position of the detergent, and optimizes the working condition of the washing equipment. By using the above design, the working state of the liquid storage device can be controlled by the suction device. The above improvement improves the automation degree of the washing equipment, so that the detergent can be delivered to the outside according to the demand, and solves the problems of large size, complex installation and high cost of the existing suction device. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 is a structural schematic view of the through type liquid sensor provided by the embodiment of the present application;

[0022] Fig. 2 is an exploded view of the through type liquid sensor provided by the embodiment of the present application;

[0023] Fig. 3 Figure is a structural schematic diagram of the washing equipment provided by the embodiment of the present application.

[0024] In the figure:

[0025] 100, suction device; 110, through type liquid sensor; 111, lead wire; 112, probe; 113, cavity cover; 114, sealing ring; 115, detection pipeline; 116, liquid inlet pipeline; 117, liquid outlet pipeline;

[0026] 120, connecting pipeline; 130, locking cable tie; 140, liquid pumping pump;

[0027] 200, liquid storage device. DETAILED DESCRIPTION

[0028] The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and moreover, the "above", "above" and "above" of the first feature on the second feature include the first feature above and obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature on the second feature include the first feature below and obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0030] In the description of the utility model, it is necessary to explain, unless there is definite stipulation and limitation, the term "installation", "connection", "connect" should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication inside two elements.For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0031] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout the description.The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limiting the utility model.

[0032] As Figs. 1 to 3 The embodiment provides a through type liquid sensor 110, including detection cavity, sensing unit and two probes 112;Liquid flows through the detection cavity along the horizontal direction;The end of probe 112 extends into the detection cavity along the vertical direction from top to bottom, the other end is placed outside the detection cavity, and the two probes 112 are arranged at intervals;The sensing unit is electrically connected with the other end of the two probes 112 through the wire 111, for detecting the electrical connection state between the two probes 112.

[0033] The through type liquid sensor 110 can detect the situation of the liquid in the detection cavity by detecting the situation of the electrical signal path formed between the two probes 112 by means of the setting of the two probes 112, which can utilize the conductive characteristics of the liquid.When liquid flows through the detection cavity, the two probes 112 can form an electrical signal path between the two probes 112 by taking the liquid in contact as a medium, and feedback to the sensing unit, outputting the signal that there is liquid in the detection cavity;When the liquid in the liquid storage box is insufficient or there is no liquid, air flows through the detection cavity, at this time, the two probes 112 cannot contact with the liquid, and cannot form an electrical signal path, feedback to the sensing unit, outputting the signal that there is no liquid in the detection cavity, prompting the user to add liquid or replace the solvent bottle.The design of the probe 112 extending into the detection cavity along the vertical direction from top to bottom reduces the probability of the probe 112 being contaminated by liquid due to accident, reduces the hidden danger of false alarm or no alarm, and improves the accuracy of the detection result.The above design can judge the flow state of the liquid, achieve the detection purpose of the liquid, and do not need to consider the requirement of the pressure in the detection cavity.The through type liquid sensor 110 is simple and convenient to set, and is suitable for various working environments, and has a wide application range.The above improvement simplifies the structure of the through type liquid sensor 110, reduces the production cost, and reduces the installation difficulty.

[0034] In the embodiment, the through type liquid sensor 110 is arranged in the pipeline for liquid transfer, the upper end of the detection cavity is communicated with an air chamber, and the air chamber is higher than the pipeline for flowing liquid in the vertical direction. The air chamber is arranged to ensure that the two probes 112 are not in contact with the liquid in the no-liquid state, so that the two probes 112 are insulated from each other, the electrical signal path cannot be formed, and the risk of false alarm or no alarm is further reduced.

[0035] Compared with other existing liquid level detection devices, the sensor using the probe 112 for detection has low production cost, simple process and convenient installation, and is beneficial to batch production of the sensor.

[0036] In the embodiment, the sensing unit is further connected with an alarm unit in communication. When the sensing unit outputs a signal that there is no liquid in the detection cavity, the alarm unit sends an alarm information.

[0037] Exemplarily, the alarm unit is a buzzer or a flash lamp. The alarm unit can timely and obviously remind the user to add liquid or replace the solvent bottle.

[0038] In the embodiment, the through type liquid sensor 110 further includes a detection pipeline 115 and a cavity cover 113 detachably connected to the detection pipeline 115. The detection pipeline 115 is provided with an opening upwardly vertical detection groove, the cavity cover 113 selectively opens and closes the detection groove, and the detection groove and the cavity cover 113 form a detection cavity; and the probe 112 is connected to the cavity cover 113. The detection pipeline 115 and the cavity cover 113 form the detection cavity. The above design is simple and reliable, realizes manual opening and closing of the detection cavity, reduces the production cost of the through type liquid sensor 110, facilitates the user to disassemble and maintain the through type liquid sensor 110, reduces the risk of damage and destruction of the through type liquid sensor 110, and prolongs the service life of the through type liquid sensor 110.

[0039] Further, the detection groove is further communicated with a liquid inlet pipeline and a liquid outlet pipeline. The liquid flows into the detection groove through the liquid inlet pipeline and is discharged from the detection groove through the liquid outlet pipeline. The above design realizes the communication between the detection groove and the external environment, ensures that the liquid can smoothly flow through the detection cavity, and guarantees the long-term stable operation of the through type liquid sensor 110.

[0040] Still further, the detection pipeline 115 is communicated with a liquid inlet pipeline 116 extending in the horizontal direction, and the liquid inlet pipeline 116 surrounds the liquid inlet pipeline; and the detection pipeline 115 is communicated with a liquid outlet pipeline 117 extending in the horizontal direction, and the liquid outlet pipeline 117 surrounds the liquid outlet pipeline. Specifically, the detection pipeline 115, the liquid inlet pipeline 116 and the liquid outlet pipeline 117 are integrally formed.

[0041] In the embodiment, the cavity cover 113 is provided with a cover groove, the probe 112 penetrates through the groove bottom of the cover groove, and the inner groove wall of the cover groove is matched and attached to the outer side wall of the detection pipeline 115. The above design is simple and reliable, has high connection stability and good sealing effect, effectively avoids the leakage of liquid from the detection cavity, and ensures the cleanliness of the working environment of the through type liquid sensor 110.

[0042] Further, the through type liquid sensor 110 further comprises a sealing ring 114, which is clamped between the opening of the detection groove and the groove bottom of the cavity cover 113. The sealing ring 114 ensures the sealing property of the detection cavity. Further, the risk of liquid leakage from the detection cavity is reduced.

[0043] The embodiment also provides a suction device 100, which comprises a first pipeline, a second pipeline, a liquid pump 140 and the above-mentioned through type liquid sensor 110. The liquid pump 140 is connected to the upstream device of the suction device 100 through the first pipeline, the liquid pump 140 is connected to the downstream device of the suction device 100 through the second pipeline, the first pipeline is provided with the through type liquid sensor 110, and the through type liquid sensor 110 is used for detecting liquid flowing through the first pipeline.

[0044] The suction device 100 adopts the design that the through type liquid sensor 110 is arranged on the first pipeline. Compared with the case that the through type liquid sensor 110 is arranged on the second pipeline, the above design can send a prompt information earlier when the upstream device is short of liquid. When the liquid pump 140 pumps liquid, a small negative pressure is formed in the upper cavity of the detection cavity. Even if the sealing property of the detection cavity is deteriorated, only the air is supplemented into the cavity. The above design can reduce the risk of the air chamber of the detection cavity being reduced, reduce the risk of the detection device being disabled, and thus ensure that the performance of the product is more stable.

[0045] The first pipeline and the second pipeline are simple and reliable in design, ensure the smooth work of the liquid pump 140, ensure that liquid can be transported from the upstream device to the downstream device in the order of the first pipeline, the liquid pump 140 and the second pipeline, and finally discharged, and ensure the stable operation of the suction device 100.

[0046] The embodiment also provides a washing equipment, which comprises a liquid storage device 200 and the above-mentioned suction device 100. The liquid is a detergent, the liquid storage device 200 is provided with a liquid collecting cavity and a liquid supply cavity, the liquid supply cavity is used for storing the detergent, and the liquid collecting cavity is used for discharging the detergent; and the suction device 100 is used for transporting the detergent from the liquid supply cavity to the liquid collecting cavity.

[0047] The washing equipment achieves the purpose of collecting and storing the washing agent by the setting of the liquid collecting cavity and the liquid supply cavity on the liquid storage device 200, and ensures that the washing agent can be uniformly delivered out of the washing equipment according to the requirement. The above improvement improves the flexibility of the washing equipment, expands the discharge position of the washing agent, and optimizes the working condition of the washing equipment. By the above design, the working state of the liquid storage device 200 can be controlled by the suction device 100, and the above improvement improves the automation degree of the washing equipment, so that the washing agent can be delivered to the outside according to the requirement, and the problems of large volume, complex installation and high cost of the existing suction device 100 are solved.

[0048] In the embodiment, the first pipeline includes a plurality of connecting pipelines 120, the detection cavity is connected with the liquid supply cavity through one connecting pipeline 120, and the detection cavity is connected with the liquid pumping pump 140 through another connecting pipeline 120. Specifically, the through type liquid sensor 110 is locked with the connecting pipeline 120 through the locking fastening strap 130 sleeved outside the connecting pipeline 120. The above design realizes the installation of the through type liquid sensor 110 in the first pipeline, ensures that the liquid in the first pipeline can smoothly flow through the through type liquid sensor 110, and guarantees the stable operation of the through type liquid sensor 110.

[0049] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, other different forms of changes or changes can be made on the basis of the above description. Here, all the embodiments are not enumerated. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A through-type liquid sensor, characterized in that, include: The detection chamber through which liquid flows horizontally; Two probes (112) are provided, with one end of each probe (112) extending vertically from top to bottom into the detection cavity and the other end placed outside the detection cavity. The two probes (112) are spaced apart. The sensing unit is electrically connected to the other end of the two probes (112) via wires (111) to detect the electrical connection status between the two probes (112).

2. The through-type liquid sensor according to claim 1, characterized in that, The through-type liquid sensor also includes a detection tube (115) and a cavity cover (113) detachably connected to the detection tube (115). The detection tube (115) has a detection groove with an opening that faces vertically upward. The cavity cover (113) selectively opens and closes the detection groove. The detection groove and the cavity cover (113) form the detection cavity. The probe (112) passes through the cavity cover (113).

3. The through-type liquid sensor according to claim 2, characterized in that, The detection tank is also connected to an inlet pipe and an outlet pipe. The liquid flows into the detection tank through the inlet pipe and is discharged from the detection tank through the outlet pipe.

4. The through-type liquid sensor according to claim 3, characterized in that, The detection pipeline (115) is connected to a liquid inlet pipeline (116) extending in the horizontal direction, and the liquid inlet pipeline (116) forms the liquid inlet line.

5. The through-type liquid sensor according to claim 3, characterized in that, The detection pipeline (115) is connected to a drainage pipeline (117) extending in a horizontal direction, and the drainage pipeline (117) forms the outlet pipeline.

6. The through-type liquid sensor according to claim 3, characterized in that, The cavity cover (113) is provided with a cover groove, and the probe (112) penetrates the bottom of the cover groove. The inner wall of the cover groove matches and fits the outer wall of the detection pipeline (115).

7. The through-type liquid sensor according to claim 6, characterized in that, The through-type liquid sensor also includes a sealing ring (114), which is sandwiched between the opening of the detection groove and the bottom of the cavity cover (113).

8. A suction device, characterized in that, The device includes a first pipe, a second pipe, a pump (140), and a through-type liquid sensor as described in any one of claims 1-7. The pump (140) is connected to an upstream device of the suction device via the first pipe, and the pump (140) is connected to a downstream device of the suction device via the second pipe. The through-type liquid sensor is provided on the first pipe and is used to detect the liquid flowing through the first pipe.

9. A washing device, characterized in that, The device includes a liquid storage device (200) and a suction device as described in claim 8, wherein the liquid is a detergent, the liquid storage device (200) is provided with a liquid collection chamber and a liquid supply chamber, the liquid supply chamber is used to store the detergent, and the liquid collection chamber is used to discharge the detergent; the suction device is used to transport the detergent from the liquid supply chamber to the liquid collection chamber.

10. The washing equipment according to claim 9, characterized in that, The first pipeline includes several connecting pipes (120), the detection chamber is connected to the liquid supply chamber through one of the connecting pipes (120), and the detection chamber is connected to the liquid pump (140) through another connecting pipe (120).

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