CN208223603U - A kind of liquid level sensor - Google Patents
A kind of liquid level sensor Download PDFInfo
- Publication number
- CN208223603U CN208223603U CN201820512258.3U CN201820512258U CN208223603U CN 208223603 U CN208223603 U CN 208223603U CN 201820512258 U CN201820512258 U CN 201820512258U CN 208223603 U CN208223603 U CN 208223603U
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- CN
- China
- Prior art keywords
- glass tube
- pcb board
- magnetron
- liquid level
- buoy
- 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.)
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Abstract
The utility model relates to a kind of sensors, in particular to a kind of liquid level sensor, including the glass tube being connected to liquid level to be measured, glass tube both ends open, it floats in glass tube and is equipped with magnetron buoy, glass tube upper end is equipped with the upper block piece for limiting magnetron buoy, glass tube lower end is equipped with the lower block piece for limiting magnetron buoy, glass tube side is equipped with magnetron assembly, magnetron assembly includes pcb board and several tongue tubes for being welded on pcb board, pcb board is equipped with external connection, glass tube is equipped with the positioning device for fixing pcb board position, the tongue tube of the utility model is arranged on pcb board, the position of two neighboring tongue tube is relatively fixed, and when if necessary to adjust position, only need the position of integrated regulation pcb board, it is easy to operate.
Description
Technical field
The utility model relates to a kind of sensor, in particular to a kind of liquid level sensor.
Background technique
The structure of high water tank sensor is based primarily upon buoyancy and magnetic force principle designs production, the float with magnet
The position of (abbreviation magnetic float) in measured medium is influenced by buoyancy, and the contact part of reed will be magnetically attracted,
When attraction is greater than the elastic force of reed, normal opened contact will be attracted；When magnetic force reduces to a certain extent, contact is by reed
Elastic force is opened, and in the prior art, several tongue tubes are connected by connecting line, and in metal sleeve, uses one end
After time, since connecting line is pullled or is shaken, tongue tube upper and lower position is easy to happen variation, influences the essence of liquid level sensor
Degree.
Utility model content
In order to solve the problems, such as that tongue tube change in location of the existing technology is easy to influence measurement accuracy, the utility model
A kind of fixed, high liquid level sensor of measurement accuracy is provided.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of liquid level sensor, including the glass tube being connected to liquid level to be measured, the glass tube both ends open is described
It floats in glass tube and is equipped with magnetron buoy, the glass tube upper end is equipped with the upper block piece for limiting magnetron buoy,
The glass tube lower end is equipped with the lower block piece for limiting magnetron buoy, and the glass tube side is equipped with magnetron pack
Part, the magnetron assembly include pcb board and several tongue tubes for being welded on pcb board, and the pcb board is equipped with outer
Wiring, the glass tube are equipped with the positioning device for fixing pcb board position.
Further, the upper block piece is the plunger that glass tube upper end is arranged in, the plunger center tool
There is through-hole, the lower block piece is the indent that the glass tube lower end is arranged in, and the indent is along glass tube Circle-Array
Column.
Further, the positioning device includes the metal sleeve being set in outside the pcb board, the metal
Casing both ends are fixed with interior heat-shrinkable T bush, and the positioning device further includes fixing sleeve, and the fixing sleeve is by interior heat-shrinkable T bush
It is nested together with glass tube, the fixing sleeve both ends are equipped with outer heat-shrinkable T bush.
The utility model has the advantages that the tongue tube of the utility model is arranged on pcb board, the position of two neighboring tongue tube is relatively solid
When determining, and adjusting position if necessary, it is only necessary to the position of integrated regulation pcb board, it is easy to operate.
Detailed description of the invention
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is the explosive view of the liquid level sensor of the utility model；
Fig. 2 is the external structure of the liquid level sensor of the utility model；
Fig. 3 is the cross-sectional view in Fig. 2 along A-A；
Fig. 4 is the partial enlarged view in Fig. 3 at I；
Fig. 5 is the main view of magnetron assembly；
Fig. 6 is the three-dimensional structure diagram of magnetron assembly.
Wherein, 1, glass tube, 2, magnetron buoy, 3, magnetron assembly, 31, pcb board, 32, tongue tube, 33, external connection,
4, plunger, 5, indent, 6, metal sleeve, 7, interior heat-shrinkable T bush, 8, fixing sleeve, 9, outer heat-shrinkable T bush.
Specific embodiment
Such as Fig. 1-6, a kind of liquid level sensor, including the glass tube 1 being connected to liquid level to be measured, 1 both ends open of glass tube, glass
It floats in glass pipe 1 and is equipped with magnetron buoy 2,1 upper end of glass tube is equipped with the upper block piece for limiting magnetron buoy 2, glass
1 lower end of pipe is equipped with the lower block piece for limiting magnetron buoy 2, and 1 side of glass tube is equipped with magnetron assembly 3, magnetron pack
Part 3 includes pcb board 31 and several tongue tubes 32 being welded on pcb board 31, and pcb board 31 is equipped with external connection 33, glass tube 1
It is equipped with the positioning device for fixing 31 position of pcb board.
Upper block piece is the plunger 4 that 1 upper end of glass tube is arranged in, and 4 center of plunger has through-hole, and lower block piece is to set
The indent 5 in 1 lower end of glass tube is set, indent 5 is along 1 circumference array of glass tube.Positioning device includes being set in outside pcb board 31
Metal sleeve 6,6 both ends of metal sleeve are fixed with interior heat-shrinkable T bush 7, and positioning device further includes fixing sleeve 8, fixing sleeve 8 will in
Heat-shrinkable T bush 7 and glass tube 1 are nested together, and 8 both ends of fixing sleeve are equipped with outer heat-shrinkable T bush 9, and in the present embodiment, metal sleeve 6 is
Copper metal sleeve 6.
Testing liquid is entered by the lower end of glass tube 1, and magnetron buoy 2 is risen by buoyancy, is risen to corresponding dry
The position of reed pipe 32, corresponding 32 contact of tongue tube are attracted.In practical application, external connection 33 can be connected in outer detecting circuit, be done
The on-off of the contact of reed pipe 33 being attracted to realize detection circuit.
It should be appreciated that specific embodiment described above is only used for explaining the utility model, it is not used to limit this reality
With novel.By the utility model the obvious changes or variations extended out of spirit still in the utility model protection
Among range.
Claims (3)
1. a kind of liquid level sensor, it is characterised in that: including the glass tube (1) being connected to liquid level to be measured, the glass tube (1)
Both ends open, interior float of the glass tube (1) are equipped with magnetron buoy (2), and the glass tube (1) upper end is equipped with for limiting
The upper block piece of magnetron buoy (2) processed, the glass tube (1) lower end are equipped with the lower resistance for limiting magnetron buoy (2)
Block piece, the glass tube (1) side be equipped with magnetron assembly (3), the magnetron assembly (3) include pcb board (31) and
Several tongue tubes (32) being welded on pcb board (31), the pcb board (31) are equipped with external connection (33), the glass
Glass pipe (1) is equipped with the positioning device for fixing pcb board (31) position.
2. a kind of liquid level sensor according to claim 1, it is characterised in that: the upper block piece is to be arranged in glass
Manage (1) upper end plunger (4), the plunger (4) center have through-hole, the lower block piece be arranged in it is described
The indent (5) of glass tube (1) lower end, the indent (5) is along glass tube (1) circumference array.
3. a kind of liquid level sensor according to claim 1, it is characterised in that: the positioning device includes being set in institute
The external metal sleeve (6) of the pcb board (31) stated, the metal sleeve (6) both ends are fixed with interior heat-shrinkable T bush (7), described
Positioning device further include fixing sleeve (8), interior heat-shrinkable T bush (7) and glass tube (1) are nested together by the fixing sleeve (8),
Fixing sleeve (8) both ends are equipped with outer heat-shrinkable T bush (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820512258.3U CN208223603U (en) | 2018-04-10 | 2018-04-10 | A kind of liquid level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820512258.3U CN208223603U (en) | 2018-04-10 | 2018-04-10 | A kind of liquid level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208223603U true CN208223603U (en) | 2018-12-11 |
Family
ID=64514816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820512258.3U Active CN208223603U (en) | 2018-04-10 | 2018-04-10 | A kind of liquid level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208223603U (en) |
-
2018
- 2018-04-10 CN CN201820512258.3U patent/CN208223603U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |