CN215448111U

CN215448111U - Sealing device for liquid level height detection

Info

Publication number: CN215448111U
Application number: CN202121896433.1U
Authority: CN
Inventors: 王功炉
Original assignee: Individual
Current assignee: Shenzhen Yousen Information Technology Co ltd
Priority date: 2021-08-13
Filing date: 2021-08-13
Publication date: 2022-01-07
Anticipated expiration: 2031-08-13

Abstract

The utility model belongs to the technical field of liquid level detection, and particularly relates to a sealing device for liquid level height detection, which comprises a sensor, wherein the top of the sensor is nested with a sleeve body, a Teflon through pipe is arranged in the middle of the sensor, the inner wall of the Teflon through pipe is nested with a metal capacitor electrode, a metal piece is arranged at the bottom of the sensor, a negative signal wire is arranged on the top surface of the metal piece, the negative signal wire penetrates through the sensor from bottom to top, a shell is nested at the top of the outer wall of the sensor, an inner cavity is formed in the shell, and a liquid sensor is arranged at the bottom of the inner cavity.

Description

Sealing device for liquid level height detection

Technical Field

The utility model relates to the technical field of liquid level detection, in particular to a sealing device for liquid level height detection.

Background

The liquid level sensor is a pressure sensor for measuring liquid level, is mainly used for detecting the real-time liquid level of pesticide of the unmanned aerial vehicle and the height of the water level in the vehicle at present, adopts a capacitive detection mode, and can output serial ports, voltage or current signals.

In the long-term working process of traditional capacitanc level sensor, the liquid level permeates the inside short circuit of sensor easily through the gap and influences sensor normal work, and there is the gap simultaneously traditional capacitanc level sensor and liquid level bottom, leads to the liquid level to detect accurate inadequately.

Therefore, the sealing device for detecting the liquid level height effectively prevents the liquid level from permeating into the sensor through the gap and causing short circuit to affect the normal work of the sensor, and is beneficial to improving the accuracy of liquid level detection.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a sealing device for detecting liquid level height, which aims to solve the problem that in the long-term working process of the capacitive liquid level sensor in the background technology, liquid level easily permeates into the sensor through a gap to cause short circuit and influence the normal work of the sensor.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a sealing device for liquid level height detects, includes the sensor, the sensor top corresponds the cover body and nests mutually, the sensor middle part is provided with special fluorine dragon siphunculus, special fluorine dragon siphunculus inner wall nestification has the metal capacitance utmost point, the sensor bottom is provided with the metalwork, negative pole signal line is installed to the metalwork top surface, the sensor is run through to negative pole signal line from bottom to top, nested the shell in sensor outer wall top, the inside inner chamber of having seted up of shell, liquid sensor is installed to the inner chamber bottom.

Preferably, the sleeve body and the sensor are nested, and an upper sealing ring is arranged between the sleeve body and the sensor.

Preferably, the top of the metal piece is provided with a plastic screw, and a sealing gasket is arranged between the plastic screw and the metal piece.

Preferably, a metal sealing screw is installed at the top end of the plastic screw, and a lower sealing ring is arranged between the plastic screw and the metal sealing screw.

Preferably, the diameter of the housing is larger than the diameter of the metal piece.

Compared with the prior art, the utility model has the beneficial effects that:

1) the sealing device for detecting the liquid level height is characterized in that a metal pipe with an additional layer outside a Teflon layer is integrally sealed and then used as a closed-loop cathode for capacitance collection, the most liquid is directly used as the closed-loop cathode for capacitance collection, a metal part at the bottom end is used as a cathode stroke capacitance value, the position of a liquid level lower line is close to the bottom of liquid, a metal sealing screw and a plastic screw are screwed and tightly sealed, a sealing pad is additionally arranged between the metal part and the plastic screw and then tightly screwed and sealed, the position of a cathode signal line welded on the metal part screw penetrates through the sealing pad and the plastic screw to form a whole body which is immersed in liquid, the liquid level is prevented from permeating into the sensor through a gap to affect the normal work of the sensor, and the accuracy of liquid level detection is improved.

2) According to the sealing device for detecting the liquid level height, due to the arrangement of the liquid sensor and the shell, when the water leakage problem occurs at the joint, liquid flows into the inner cavity of the shell, and the water leakage problem is detected through the liquid sensor, so that the detection of the sealing performance of the liquid level height detection is facilitated.

Drawings

FIG. 1 is a schematic view of the overall structure of the sealing device for liquid level height detection according to the present invention;

fig. 2 is a schematic view of the internal structure of the sealing device for detecting liquid level height of the utility model.

In the figure: 1. a metal member; 2. a gasket; 3. plastic screws; 4. a lower seal ring; 5. a metal seal screw; 6. a Teflon through pipe; 7. a metal capacitor electrode; 8. an upper sealing ring; 9. a sensor; 10. a negative signal line; 11. a sleeve body; 12. a housing; 13. an inner cavity; 14. a liquid sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example (b): after metal capacitance utmost point 7 emboliaed special fluorine dragon siphunculus 6, plastic screw 3 screws up through internal thread and metal capacitance utmost point 7, plastic screw 3 seals up special fluorine dragon siphunculus 6 simultaneously, increase behind upper seal circle 8 and the lower seal circle 4, screw up metal seal screw 5 and plastic screw 3 sealedly, it is sealed that the tight fit is after 2 to increase sealed pad in the middle of metalwork 1 and the plastic screw 3, metalwork 1 screw welds negative pole signal line 10, pass sealed pad 2 and plastic screw 3, form a whole at the immersion liquid, when the problem of leaking appears in the junction, liquid flows in the inner chamber 13 of shell 12, detect the signal of leaking through liquid sensor 14.

Referring to fig. 1-2, the present invention provides a technical solution: a sealing device for detecting the liquid level height comprises a sensor 9, wherein the top of the sensor 9 is nested with a corresponding sleeve body 11, and the sealing device is characterized in that: a Teflon through pipe 6 is arranged in the middle of the sensor 9, a metal capacitor electrode 7 is nested on the inner wall of the Teflon through pipe 6, a metal piece 1 is arranged at the bottom of the sensor 9, a cathode signal wire 10 is arranged on the top surface of the metal piece 1, the cathode signal wire 10 penetrates through the sensor 9 from bottom to top, a shell 12 is nested on the top of the outer wall of the sensor 9, an inner cavity 13 is formed in the shell 12, and a liquid sensor 14 is arranged at the bottom of the inner cavity 13; after metal capacitance utmost point 7 emboliaed special fluorine dragon siphunculus 6, plastic screw 3 screws up through internal thread and metal capacitance utmost point 7, plastic screw 3 seals up special fluorine dragon siphunculus 6 simultaneously, increase behind upper seal circle 8 and the lower seal circle 4, screw up metal seal screw 5 and plastic screw 3 sealedly, it is sealed that the tight fit is after 2 to increase sealed pad in the middle of metalwork 1 and the plastic screw 3, metalwork 1 screw welds negative pole signal line 10, pass sealed pad 2 and plastic screw 3, form a whole at the immersion liquid, when the problem of leaking appears in the junction, liquid flows in the inner chamber 13 of shell 12, detect the signal of leaking through liquid sensor 14.

The sleeve body 11 and the sensor 9 are nested, and the upper sealing ring 8 is arranged between the sleeve body 11 and the sensor 9; the sheath 11 is connected to the top of the external structure by nesting the sheath 11 in correspondence of the top of the sensor 9.

The plastic screw 3 is mounted at the top of the metal piece 1, and the sealing gasket 2 is arranged between the plastic screw 3 and the metal piece 1; the metal piece 1 is connected with the plastic screw 3, and the sealing performance of the plastic screw 3 and the metal piece 1 is improved through the sealing gasket 2.

The top end of the plastic screw 3 is provided with a metal sealing screw 5, and a lower sealing ring 4 is arranged between the plastic screw 3 and the metal sealing screw 5; connect metal seal screw 5 through plastic screw 3, make the leakproofness higher between plastic screw 3 and the metal seal screw 5 through lower sealing washer 4 simultaneously.

The working principle is as follows: after metal capacitance utmost point 7 emboliaed special fluorine dragon siphunculus 6, plastic screw 3 screws up through internal thread and metal capacitance utmost point 7, plastic screw 3 seals up special fluorine dragon siphunculus 6 simultaneously, increase behind upper seal circle 8 and the lower seal circle 4, screw up metal seal screw 5 and plastic screw 3 sealedly, it is sealed that the tight fit is after 2 to increase sealed pad in the middle of metalwork 1 and the plastic screw 3, metalwork 1 screw welds negative pole signal line 10, pass sealed pad 2 and plastic screw 3, form a whole at the immersion liquid, when the problem of leaking appears in the junction, liquid flows in the inner chamber 13 of shell 12, detect the signal of leaking through liquid sensor 14.

While there have been shown and described the fundamental principles and essential features of the utility model and advantages thereof, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A sealing device for detecting the height of a liquid level, comprising a sensor (9), wherein the top of the sensor (9) is nested with a corresponding sleeve body (11), and the sealing device is characterized in that: sensor (9) middle part is provided with special fluorine dragon siphunculus (6), special fluorine dragon siphunculus (6) inner wall nestification has metal capacitance utmost point (7), sensor (9) bottom is provided with metalwork (1), negative signal line (10) are installed to metalwork (1) top surface, negative signal line (10) run through sensor (9) from bottom to top, sensor (9) outer wall top nestification has shell (12), inner chamber (13) have been seted up to shell (12) inside, liquid sensor (14) are installed to inner chamber (13) bottom.

2. A sealing device for liquid level detection according to claim 1, wherein: the sleeve body (11) and the sensor (9) are nested, and an upper sealing ring (8) is arranged between the sleeve body (11) and the sensor (9).

3. A sealing device for liquid level detection according to claim 1, wherein: plastic screw (3) are installed at metalwork (1) top, be provided with sealed pad (2) between plastic screw (3) and metalwork (1).

4. A sealing device for liquid level height detection according to claim 3, wherein: metal seal screw (5) are installed on plastic screw (3) top, be provided with between plastic screw (3) and metal seal screw (5) lower sealing washer (4).

5. A sealing device for liquid level detection according to claim 1, wherein: the diameter of the shell (12) is larger than that of the metal piece (1).