CN211176319U

CN211176319U - Pipeline system with liquid shortage detection function

Info

Publication number: CN211176319U
Application number: CN201920830749.7U
Authority: CN
Inventors: 聂运铎; 裘善国
Original assignee: Ningbo Xinle Small Domestic Appliance Co ltd
Current assignee: Ningbo Xinle Small Domestic Appliance Co ltd
Priority date: 2018-09-20
Filing date: 2019-06-04
Publication date: 2020-08-04
Anticipated expiration: 2029-06-04

Abstract

The utility model provides a pipe-line system with lack liquid detects, is including supplying liquid unit, liquid unit and connection supply the liquid unit with the pipeline of liquid unit, the liquid that has conductive property is stored in supplying the liquid unit, a lack liquid detection subassembly has concatenated in the pipeline, lack liquid detection subassembly include a cavity insulating housing, install two cavity conductive tube spare at insulating housing both ends and respectively with the piece that connects electrical contact that conductive tube spare is connected, two conductive tube spare is located form a determining deviation between the tip in the insulating housing, two conductive tube spare is located the outer tip of insulating housing with the pipeline is connected. The utility model discloses concatenating lack liquid detection subassembly in the pipeline, the conductive liquid can feed through or break off two conductive pipe fittings in the pipeline, and this kind of lack liquid detection mode need not to set up liquid level detection component mounted position and fixed knot structure, convenient assembly and reduce cost on supplying liquid unit or with the liquid unit.

Description

Pipeline system with liquid shortage detection function

Technical Field

The utility model relates to a pipe-line system with lack of liquid detects.

Background

In the existing traditional liquid supply pipeline system, liquid shortage detection is arranged on a liquid supply unit or a liquid using unit, and a detection assembly generally adopts a liquid level sensor to detect. This detection method has the following disadvantages: firstly, the liquid level sensor is arranged on the liquid supply unit or the liquid using unit, a certain installation position and a fixed structure are needed, the assembly is troublesome, and the manufacturing cost is increased; secondly, the liquid level sensor arranged on the liquid supply unit or the liquid using unit cannot reflect the liquid shortage condition at the first time, and is easy to continue working when the liquid shortage occurs; thirdly, the liquid level sensor is easily affected by unstable liquid level and malfunctions. The problems with such plumbing systems are particularly apparent in externally supplied steam systems or other appliances requiring a water supply.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome above-mentioned prior art not enough, provide a lack of liquid and detect the pipe-line system that has lack of liquid and detect accurate, that reduce the malfunction and take place.

According to the utility model provides a pair of pipe-line system with lack liquid detects, including supplying liquid unit, liquid unit and connection supply the liquid unit with the pipeline of liquid unit, the liquid that has conductive characteristic is stored in supplying the liquid unit, it lacks liquid determine module to concatenate in the pipeline, lack liquid determine module include a cavity insulator housing, install two cavity conductive pipe fittings on the insulator housing and respectively with the piece that connects electric that conductive pipe fitting is connected, two conductive pipe fitting is located form a determining deviation between the tip in the insulator housing, two conductive pipe fitting is located the outer tip of insulator housing with the pipeline is connected.

According to the utility model provides a pair of pipe-line system with lack of liquid detects still has following attached technical characteristic:

the insulating shell comprises an upper shell and a lower shell connected with the upper shell, wherein one conductive pipe fitting is installed on the upper shell, and the other conductive pipe fitting is installed on the lower shell.

Further comprising, the top of the upper shell is formed with a convex column towards the cavity, a liquid inlet through hole is formed in the middle of the convex column, and one of the conductive pipe fittings is inserted into the liquid inlet through hole.

The lower shell is provided with a liquid outlet through hole, and the other conducting pipe fitting is inserted into the liquid outlet through hole.

Further comprising a cavity formed between the outer wall of the convex column and the inner wall of the upper shell.

Further comprising that the distance between the outer wall of the convex column and the inner wall of the upper shell is more than 1.5 mm.

The lower shell is arranged in the lower end of the upper shell, and a sealing ring is arranged between the lower shell and the upper shell.

The power supply is connected with the two electric connecting pieces, and the signal processing chip is connected with the electric connecting pieces.

The power supply is a constant voltage power supply, and the electric connecting piece connected with the positive electrode of the power supply is also connected with a divider resistor.

The signal processing chip is used for detecting the capacitance or the resistance value between the two conductive pipe fittings.

According to the utility model provides a pair of pipe-line system with lack of liquid detects compares with prior art and has following advantage: the utility model discloses concatenating lack liquid detection subassembly in the pipeline, the conductive liquid can feed through or break off two conductive pipe fittings in the pipeline, and this kind of lack liquid detection mode need not to set up liquid level detection component mounted position and fixed knot structure, convenient assembly and reduce cost on supplying liquid unit or with the liquid unit. In addition, the liquid shortage detection mode can directly reflect whether liquid flows through the pipeline or not, and the control module can accurately control liquid supply and equipment operation conveniently.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a plan view of the present invention.

Fig. 3 is a cross-sectional view of the liquid shortage detection module of the present invention.

Fig. 4 is a schematic diagram of the liquid shortage acquisition circuit of the present invention.

Detailed Description

Referring to fig. 1 to 3, the utility model provides a pipe-line system with lack liquid detection, including supplying liquid unit 1, with liquid unit 2 and connecting supply liquid unit 1 with the pipeline 3 of liquid unit 2, supply the liquid that has stored conductive property in the liquid unit 1, a lack liquid detection subassembly 4 has concatenated in the pipeline 3, lack liquid detection subassembly 4 includes a cavity insulating housing 5, installs two cavity conductive pipe fittings 6 on the insulating housing 5 and respectively with the piece 7 that connects electrical contact that conductive pipe fittings 6 is connected, two conductive pipe fittings 6 is located form a determining deviation between the tip in the insulating housing 5, two conductive pipe fittings 6 is located the tip outside the insulating housing 5 with pipeline 3 is connected. The utility model discloses connect two electrically conductive pipe fittings 6 through insulating housing 5, utilize the electric conductivity of conducting liquid to communicate the signal of telecommunication of two electrically conductive pipe fittings 6. If there is a liquid flowing through the two conductive pipes 6 and the insulating housing 5, the two electric connecting tabs 7 are turned on, and if there is no liquid flowing through the two conductive pipes 6 and the insulating housing 5, the two electric connecting tabs 7 are turned off. The utility model discloses concatenate lack liquid detection subassembly 4 in pipeline 3, can be accurate detect whether have liquid, can send out the lack liquid signal the very first time. The detection mode is not influenced by the structure of the liquid supply unit or the liquid using unit, and the position and the fixing structure of the liquid shortage detection assembly do not need to be arranged in the liquid supply unit or the liquid using unit, so that the assembly is convenient and the cost is reduced.

Referring to fig. 3, in the above embodiment of the present invention, it is further included that the insulating housing 5 includes an upper housing 51 and a lower housing 52 connected to the upper housing 51, wherein one of the conductive pipes 6 is mounted on the upper housing 51, and the other conductive pipe 6 is mounted on the lower housing 52. The utility model discloses in go up casing 51 and casing 52 down and all adopt insulating material to make, two casing lids are in the same place, constitute a shell structure who has the cavity, and conducting liquid flows into in the cavity. And a two-part shell structure is adopted, so that the installation and the cleaning are convenient.

Referring to fig. 3, the above embodiment of the present invention further includes that a convex column 53 is formed at the top of the upper housing 51 toward the cavity, a liquid inlet through hole 54 is formed in the middle of the convex column 53, and one of the conductive pipes 6 is inserted into the liquid inlet through hole 54. The utility model discloses set up projection 53 for liquid can not be overtopped projection 53 and the cavity that the inner wall of last casing 51 formed, so can not be at cavity inner wall knot calcium, two electrically conductive pipe fittings 6 just can not switch on because of the knot calcium of liquid like this, cause the system to judge by mistake and have liquid.

Referring to fig. 3, in the above embodiment of the present invention, a liquid outlet hole 55 is formed on the lower housing 52, and another conductive pipe 6 is inserted into the liquid outlet hole 55. The top of the liquid outlet through hole 55 is formed with a pit for facilitating the liquid to flow in.

Referring to fig. 3, in the above embodiment of the present invention, it is further included that a cavity is formed between an outer wall of the convex pillar 53 and an inner wall of the upper case 52. The utility model discloses with projection 53 in the abrupt casing cavity of income, liquid can not spill over the cavity, can not knot calcium in the cavity, isolated between two electrically conductive pipe fittings 6 because knot calcium and connect to increase of service life. The distance between the outer wall of the convex column 53 and the inner wall of the upper shell 52 is greater than 1.5 mm. This example is 3 mm. The structure can effectively prevent calcium accumulation from influencing the misjudgment of the system.

Referring to fig. 3, in the above embodiment of the present invention, it is further included that a part of the structure of the lower housing 52 is plugged into the lower end of the upper housing 51, and a sealing ring 56 is disposed between the lower housing 52 and the upper housing 51. The lower case 52 has a cylindrical structure so as to be easily inserted into the upper case. The seal ring 56 provides a seal to prevent fluid leakage.

Referring to fig. 3 and 4, the above embodiments further include, still include the lack of liquid acquisition circuit 8, lack of liquid acquisition circuit 8 include with two the power that connects electric piece 7 to be connected and with electric piece 7 is connected signal processing chip 81. The power supply is a constant voltage power supply, and the electric connecting piece 7 connected with the positive electrode of the power supply is also connected with a voltage dividing resistor 82. The constant voltage power supply provides a stable power supply, and the signal processing chip 81 can acquire the change of a current signal when liquid exists or does not exist, so that the liquid shortage judgment is carried out according to whether liquid flows through the pipeline 3 or not. The voltage dividing resistor 82 plays a role of protection. This embodiment adopts the mode whether to detect there is the electric current, of course, the utility model discloses also can adopt two electric capacity changes that connect between the electric plate 7 of detection, for example, signal processing chip 81 detects two capacitance value between the electrically conductive pipe fitting judges whether there is liquid to flow according to the capacitance value that detects. Of course, the utility model discloses resistance value between the two also can be detected.

Referring to fig. 1 and 2, in the above embodiment of the present invention, the liquid supply unit 1 is a water tank, the liquid consumption unit 2 is a steam generator, the liquid is water, and the pipeline 3 is further provided with a water pump 9. This embodiment is a steam generating apparatus used in small electric appliances using steam, such as a steam iron, a steam cleaner, and a steam mop. Adopt this kind of liquid shortage detection mode can effectually detect whether have water in the pipeline, prevent that steam generator from taking place to dry and burn. Of course, the pipe system of the present invention can also be used in other household appliances or devices, such as coffee machines.

Claims

1. The utility model provides a pipe-line system with lack of liquid detects, includes and supplies liquid unit, with liquid unit and connects supply liquid unit with the pipeline of liquid unit, supply to store the liquid that has conductive property in the liquid unit, its characterized in that: the liquid shortage detection assembly comprises a hollow insulating shell, two hollow conductive pipe fittings arranged on the insulating shell and electric connection pieces respectively connected with the conductive pipe fittings, a certain distance is formed between the end parts of the conductive pipe fittings in the insulating shell, and the end parts of the conductive pipe fittings outside the insulating shell are connected with the pipeline.

2. The piping system with starvation detection as claimed in claim 1, wherein: the insulating shell comprises an upper shell and a lower shell connected with the upper shell, wherein one of the conductive pipe fittings is arranged on the upper shell, and the other conductive pipe fitting is arranged on the lower shell.

3. The piping system with starvation detection as claimed in claim 2, wherein: the top of the upper shell is provided with a convex column towards the cavity, a liquid inlet through hole is formed in the middle of the convex column, and one of the conductive pipe fittings is inserted into the liquid inlet through hole.

4. The piping system with starvation detection as claimed in claim 2, wherein: a liquid outlet through hole is formed in the lower shell, and the other conductive pipe fitting is inserted into the liquid outlet through hole.

5. A pipe system with starvation detection as claimed in claim 3, wherein: and a cavity is formed between the outer wall of the convex column and the inner wall of the upper shell.

6. The piping system with starvation detection as claimed in claim 5, wherein: the distance between the outer wall of the convex column and the inner wall of the upper shell is larger than 1.5 mm.

7. The piping system with starvation detection as claimed in claim 2, wherein: and part of the structure of the lower shell is plugged into the lower end of the upper shell, and a sealing ring is arranged between the lower shell and the upper shell.

8. The piping system with starvation detection as claimed in claim 1, wherein: the liquid-deficient acquisition circuit comprises a power supply connected with the two electric connecting pieces and a signal processing chip connected with the electric connecting pieces.

9. The piping system with starvation detection as claimed in claim 8, wherein: the power supply is a constant voltage power supply, and the electric connecting piece connected with the positive electrode of the power supply is also connected with a divider resistor.

10. The piping system with starvation detection as claimed in claim 8, wherein: the signal processing chip detects a capacitance value or a resistance value between the two conductive pipe fittings.