CN202255565U - Liquid level sensor - Google Patents
Liquid level sensor Download PDFInfo
- Publication number
- CN202255565U CN202255565U CN201120393218XU CN201120393218U CN202255565U CN 202255565 U CN202255565 U CN 202255565U CN 201120393218X U CN201120393218X U CN 201120393218XU CN 201120393218 U CN201120393218 U CN 201120393218U CN 202255565 U CN202255565 U CN 202255565U
- Authority
- CN
- China
- Prior art keywords
- weld assembly
- assembly
- liquid level
- level sensor
- float
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a liquid level sensor, which comprises a weld assembly, a float, a circuit assembly and a sealing ring, wherein the weld assembly is a cavity with an enclosed lower end, external threads connected to the outside are arranged on the outer surface of the upper part of the weld assembly, and the lower part of the weld assembly is in the shape of a cylindrical guide rod; the circuit assembly is composed by casting resin, a tongue tube and a connecting plug, and is located in the upper cavity of the weld assembly; a magnet is located in the float, and is sleeved on the cylindrical guide rod at the lower part of the weld assembly; the sealing ring is located nearby the outer thread at the upper part of the weld assembly and is fixed by a nut; a heat shrinkable pipe is arranged on the circuit assembly; and the middle part and the lower part of the weld assembly are reinforced and fixed by C-shaped clamp springs respectively. The liquid level sensor has a compact structure, is free from external liquid in-leaking or infiltrating, has a long service life, and has high reliability in working.
Description
Technical field
The utility model relates to the liquid level sensor technical field, particularly a kind of liquid level sensor that is used for the detection of liquid height in fuel tank or the water tank.
Background technology
Liquid level sensor is a kind of pressure transducer of measuring liquid level, has been widely used in being applicable to the level gauging of the various media of various systems and industry.
The liquid level sensor that adopts in fuel tank in the past or the water tank mainly is a metal insert formula structure; Such metal insert formula structure sensor can not guarantee fully that sensor electrode closely cooperates in plastics; Occur the outside liquid phenomenon of infiltrating or bleed etc. easily, cause the serviceable life of sensor short, functional reliability is poor.
Therefore, prior art awaits improving and improving.
The utility model content
To the problems referred to above that exist in the prior art, the purpose of the utility model provides a kind of compact conformation, no outside liquid bleeds or phenomenon such as infiltration, long product lifecycle, the hydraulic pressure transducer that functional reliability is high.
For achieving the above object; The utility model reaches through following technological means: a kind of liquid level sensor; Comprise weld assembly, float, circuit assembly and O-ring seal; Described weld assembly is the cavity of lower end closed, and outer surface of upper is provided with the external thread that can be connected with the outside, and the bottom is the cylinder guide shape; Described circuit assembly is made up of potting resin, tongue tube and attachment plug, is positioned at the weld assembly upper chamber; Magnet is positioned at float, is sleeved on the weld assembly lower cylindrical shape guide rod; O-ring seal is positioned at weld assembly upper external thread side and is fixed by nut.
Further, described circuit assembly is provided with heat-shrink tube.
Further, the middle part of described weld assembly and bottom are strengthened fixing respectively by C type jump ring.
The utility model is owing to adopt weld assembly, float, circuit assembly and O-ring seal to form liquid level sensor; After being contained in fuel tank or water tank; Float can float over corresponding height with the height of liquid level; Through the closed or disconnection of magnet triggering tongue tube, export different information and regularly gathered by the outside, thus the function of realization indication oil level or water level.Because weld assembly is the cavity of lower end closed, can prevent effectively that therefore outside liquid from bleeding or infiltrate.Because the circuit assembly is provided with thermal sleeve, can play the effect of protection tongue tube.The utility model compact conformation, no outside liquid bleed or phenomenon such as infiltration, and life of product is long, functional reliability is high.
Description of drawings
Accompanying drawing 1 is the block diagram of the utility model liquid level sensor.
Each label is respectively among the figure: (1) weld assembly, (2) float, (3) circuit assembly, (4) O-ring seal, (5) potting resin, (6) tongue tube, (7) attachment plug, (8) heat-shrink tube, (9) nut, (10) (11) jump ring.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further to specify:
Referring to Fig. 1; A kind of liquid level sensor of the utility model comprises weld assembly 1, float 2, circuit assembly 3 and O-ring seal 4, and described weld assembly 1 is the cavity of lower end closed; Outer surface of upper is provided with the external thread that can be connected with the outside, and the bottom is the cylinder guide shape; Described circuit assembly 3 is made up of potting resin 5, tongue tube 6 and attachment plug 7, is positioned at weld assembly 1 upper chamber; Magnet is positioned at float 2, is sleeved on the weld assembly 1 lower cylindrical shape guide rod; It is other and fixing by nut 9 that O-ring seal 4 is positioned at weld assembly 1 upper external thread, and described circuit assembly 3 is provided with heat-shrink tube 8, and the middle part of described weld assembly 1 and bottom are strengthened fixing by C type jump ring 10,11 respectively.
The utility model liquid level sensor adopts tongue tube level sensing technology, and float 2 is as the carrier of magnet 12, the induced liquid height; Height with liquid level in fuel tank or the water tank floats over corresponding height; Circuit assembly 3 is provided with tongue tube 6, controls the connecting and disconnecting in whole loop, and circuit assembly 3 is placed on weld assembly 1 inside; The bottom of weld assembly 1 is designed to the guide rail of cylinder guide as float 2, play the guiding role.Magnet, drives tongue tube 6 and is switched on or switched off when guide rod fluctuates with float 2, exports corresponding signal and gives instrument or terminal.
The content that the utility model disclosed; Be a kind of for preferred embodiment; In every case partial alteration, variation or to the modification of the technology contents that the utility model disclosed; And come from the technological thought of the utility model and be familiar with this technology the people do not add knowing by inference of creative thinking, all belong within the category of the utility model.
Claims (3)
1. a liquid level sensor comprises weld assembly, float, circuit assembly and O-ring seal, it is characterized in that: described weld assembly is the cavity of lower end closed, and outer surface of upper is provided with the external thread that can be connected with the outside, and the bottom is the cylinder guide shape; Described circuit assembly is made up of potting resin, tongue tube and attachment plug, is positioned at the weld assembly upper chamber; Magnet is positioned at float, is sleeved on the weld assembly lower cylindrical shape guide rod; O-ring seal is positioned at weld assembly upper external thread side and is fixed by nut.
2. liquid level sensor according to claim 1 is characterized in that: described circuit assembly is provided with heat-shrink tube.
3. liquid level sensor according to claim 1 is characterized in that: the middle part of described weld assembly and bottom are strengthened fixing respectively by C type jump ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120393218XU CN202255565U (en) | 2011-10-08 | 2011-10-08 | Liquid level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120393218XU CN202255565U (en) | 2011-10-08 | 2011-10-08 | Liquid level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202255565U true CN202255565U (en) | 2012-05-30 |
Family
ID=46116791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120393218XU Expired - Fee Related CN202255565U (en) | 2011-10-08 | 2011-10-08 | Liquid level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202255565U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105216A (en) * | 2013-01-29 | 2013-05-15 | 佛山市川东磁电股份有限公司 | Magnetic sensor and manufacturing process thereof |
| CN103808385A (en) * | 2012-11-15 | 2014-05-21 | 范序政 | Bottom end fixing device of contact liquid level sensor and fixing method using bottom end fixing device |
| CN106043937A (en) * | 2016-07-11 | 2016-10-26 | 浙江亚太机电股份有限公司 | Alarm height-adjustable liquid level sensor assembly with liquid storage tank cover |
-
2011
- 2011-10-08 CN CN201120393218XU patent/CN202255565U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103808385A (en) * | 2012-11-15 | 2014-05-21 | 范序政 | Bottom end fixing device of contact liquid level sensor and fixing method using bottom end fixing device |
| CN103808385B (en) * | 2012-11-15 | 2016-08-17 | 范序政 | Contact liquid level sensor bottom fixing device and utilize the fixing means of this device |
| CN103105216A (en) * | 2013-01-29 | 2013-05-15 | 佛山市川东磁电股份有限公司 | Magnetic sensor and manufacturing process thereof |
| CN103105216B (en) * | 2013-01-29 | 2015-12-02 | 佛山市川东磁电股份有限公司 | A kind of magneto-dependent sensor and manufacturing process thereof |
| CN106043937A (en) * | 2016-07-11 | 2016-10-26 | 浙江亚太机电股份有限公司 | Alarm height-adjustable liquid level sensor assembly with liquid storage tank cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGGUAN HENGSHENG SENSOR COMPANY LIMITED Free format text: FORMER OWNER: HUANG WEN Effective date: 20140418 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140418 Address after: 523000 No. 5, Hing Yuen Road, Yuquan Industrial Park, Fenggang Town, Dongguan, Guangdong Patentee after: DONGGUAN HENGSHENG SENSOR CO., LTD. Address before: 523000 workshop C-1, Yuquan Industrial Park, bamboo village, Fenggang Town, Dongguan, Guangdong Patentee before: Huang Wen |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20191008 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |