A liquid leakage detection sensor with a tape measure structure

Abstract

The present invention relates to a liquid leakage detection sensor with a tape measure structure, comprising a tape, a disc spring, a shell, a battery module and a control module, characterized in that: the shell comprises a first shell, a middle shell and a second shell, one end of the disc spring is fixedly connected with a recovery mechanism, and the other end is connected to the tape, the tape comprises a PET base film layer, a circuit layer, and a PET protective film layer, the PET base film layer adopts a film material with excellent heat resistance and corrosion resistance such as PI, PET, PO, PTFE, etc., the PET protective film layer is provided with sensing holes arranged according to a certain rule, the recovery mechanism and the disc spring are located between the first shell and the middle shell, and the battery module and the control module are located between the middle shell and the second shell. The present invention uses a coating circuit as an electronic circuit to reduce the false alarm rate of the liquid leakage detection sensor, and can detect the ambient temperature and humidity, and the leaked liquid can be accurately located to a specific position after contacting the detection tape measure.

Description

Technical Field

[0001] The invention relates to the technical field of liquid leakage detection, and in particular to a liquid leakage detection sensor with a tape measure structure. Background Art

[0002] With the rapid development of social economy and the expansion of industrial production scale, more and more safety accidents occur in the production process. Among these accidents, explosions and fires caused by liquid leakage account for a large proportion. In order to reduce accidents caused by liquid leakage and eliminate dangers in the bud, cable-type and electrode-type liquid leakage sensors with liquid detection functions are usually used to detect liquid leakage. However, since cable-type and electrode-type liquid leakage sensors often give false alarms, unnecessary waste of manpower is caused. More seriously, false alarms lead to production interruptions, causing huge economic losses to enterprises. In addition, the existing cable-type and electrode-type liquid leakage sensors are mostly assembled from accessories, which are complicated to install and the detection accuracy is reduced due to the inability of the various parts to fit completely.

[0003] As the scale of the enterprise continues to expand, product technology matures and progresses, customers' demands on the enterprise are also increasing. In order for the enterprise's products to be applied in various industries and fields, and for the products to be installed in many special occasions, such as pipelines, inside equipment, narrow and difficult to install areas, etc., to expand the scope of product application, it is necessary to make reasonable improvements to the existing product technology in view of the above aspects. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the above-mentioned technology and provide a leakage detection sensor with a tape measure structure. The leakage detection sensor uses a coated circuit as an electronic circuit to reduce the false alarm rate and can detect the ambient temperature and humidity. The leaked liquid can be accurately located to a specific position after contacting the detection tape measure.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is: a liquid leakage detection sensor with a tape measure structure, comprising a tape measure, a disc spring, a shell, a battery module and a control module, the shell comprising a shell one, a middle shell and a shell two, one end of the disc spring is fixedly connected with a recovery mechanism, and the other end is connected to the tape measure, the tape measure comprises a PET base film layer, a circuit layer, and a PET protective film layer, the PET base film layer adopts a thin film material with excellent heat resistance and corrosion resistance such as PI, PET, PO, PTFE, etc., the PET protective film layer is provided with sensing holes arranged in a certain pattern, the recovery mechanism and the disc spring are located between the shell one and the middle shell, and the battery module and the control module are located between the middle shell and the shell two.

[0006] As an improvement, the outer shell 1, the middle shell and the outer shell 2 are fixedly connected by screws.

[0007] As an improvement, the housing is provided with a cutout for the ruler tape to extend out.

[0008] As an improvement, a shaft for winding the tape and the disc spring is provided in the housing.

[0009] After adopting the above structure, the present invention has the following advantages:

[0010] (1) The false alarm rate of traditional cable-type and electrode-type liquid leakage sensors is reduced. The application of coated circuits significantly improves the detection accuracy, which plays a huge role in preventing disasters caused by liquid leakage in industrial production.

[0011] (2) The use of rolled film-coated circuits in the field of liquid leakage detection sensors greatly improves the strength of the sensors, increases the service life of the products, and increases economic benefits.

[0012] (3) The roll-shaped structure integrates the product, which is more conducive to the installation and use of the product, expands the application range of the product, and provides feasible solutions for more fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a liquid leakage detection sensor with a tape measure structure of the present invention.

[0014] Figure 2 It is a structural schematic diagram of a middle tape of a liquid leakage detection sensor of a measuring tape structure of the present invention when the measuring tape is in use.

[0015] As shown in the figure: 1. PET base film layer, 2. circuit layer, 3. PET protective film layer, 4. disc spring, 5. recovery mechanism, 6. outer shell one, 7. middle shell, 8. battery module, 9. control module, 10. panel, 11. outer shell two. DETAILED DESCRIPTION

[0016] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0017] In conjunction with the accompanying drawings, a leakage detection sensor with a tape measure structure includes a tape, a disc spring 4, a shell, a battery module 8 and a control module 9, the shell includes a shell 1 6, a middle shell 7 and a shell 2 11, one end of the disc spring 4 is fixedly connected with a recovery mechanism 5, and the other end is connected to the tape, the tape includes a PET base film layer 1, a circuit layer 2, and a PET protective film layer 3, the PET base film layer 1 is made of a thin film material with excellent heat resistance and corrosion resistance such as PI, PET, PO, PTFE, etc., the PET protective film layer is provided with sensing holes arranged in a certain pattern, the recovery mechanism 5 and the disc spring 4 are located between the shell 1 6 and the middle shell 7, and the battery module 8 and the control module 9 are located between the middle shell 7 and the shell 2 11.

[0018] The outer shell 1 6 , the middle shell 7 and the outer shell 2 11 are fixedly connected by screws.

[0019] The shell is provided with a cutout for the ruler tape to extend out.

[0020] The housing is provided with a shaft for winding the tape and the disc spring 4 .

[0021] When the present invention is implemented, thin film materials with excellent heat resistance and corrosion resistance such as PI, PET, PO, PTFE are used as substrates, and a conductive circuit is formed on the surface by ion sputtering coating. The impedance value of the circuit is lower than that of the original printed circuit and is evenly distributed. Using this technology, a thin film liquid detection system of hundreds of meters can be constructed, which can detect and locate the leakage of conductive liquid in a timely, stable and accurate manner, and minimize the false alarm rate of the controller. One end of the disc spring is fixed on the shaft of the shell, and the other end is connected to the tape. The disc spring and the tape are wound around the shaft in circles. After winding, the outer end of the tape is extended from the incision of the shell, and gently pulled out to tighten the spring. The pulled-out part is then wound around the shaft, and then fixed to the shell for normal use. The so-called disc spring is like the spring in an old-style winding clock. When the tape is pulled out, the disc spring is wound tightly, generating a force to roll back. When the tension of the tape is released, the tape is pulled back by the tension of the disc spring.

[0022] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A liquid leakage detection sensor with a tape measure structure, comprising a tape measure, a disc spring (4), a housing, a battery module (8) and a control module (9), characterized in that: The shell comprises a first shell (6), a middle shell (7) and a second shell (11); one end of the disc spring (4) is fixedly connected to a recovery mechanism (5), and the other end is connected to a tape ruler; the tape ruler comprises a PET base film layer (1), a circuit layer (2) and a PET protective film layer (3); the PET base film layer (1) is made of a thin film material having excellent heat resistance and corrosion resistance such as PI, PET, PO and PTFE; the PET protective film layer is provided with sensing holes arranged in a certain pattern; the recovery mechanism (5) and the disc spring (4) are located between the first shell (6) and the middle shell (7); the battery module (8) and the control module (9) are located between the middle shell (7) and the second shell (11); The outer shell 1 (6), the middle shell (7) and the outer shell 2 (11) are fixedly connected by screws; The housing is provided with a cutout for the ruler tape to extend out; A shaft for winding the tape and the disc spring (4) is arranged in the housing.

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