CN207423947U - Dissolved oxygen sensor - Google Patents
Dissolved oxygen sensor Download PDFInfo
- Publication number
- CN207423947U CN207423947U CN201721307840.8U CN201721307840U CN207423947U CN 207423947 U CN207423947 U CN 207423947U CN 201721307840 U CN201721307840 U CN 201721307840U CN 207423947 U CN207423947 U CN 207423947U
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- Prior art keywords
- dissolved oxygen
- oxygen sensor
- cylindrical hollow
- sensor body
- probe
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Abstract
The utility model discloses a kind of dissolved oxygen sensors, and including dissolved oxygen sensor body, the end of probe of dissolved oxygen sensor body is provided with membrane-replaceable head, and membrane-replaceable head includes：Cylindrical hollow sleeve, inner wall are provided with internal thread structure, and the end of probe of dissolved oxygen sensor body is provided with the external thread structure section with cylindrical hollow internal thread of sleeve respective outer side edges；It is arranged at the dissolved oxygen film of cylindrical hollow sleeve bottom；Metal steel sand net below dissolved oxygen film is bonded in by adhesive glue；The upper end of external thread structure section set by the end of probe of dissolved oxygen sensor body has ring-shaped step structure, and cylindrical hollow sleeve at ring-shaped step structure with being equipped with sealing ring.Dissolved oxygen sensor provided by the utility model installs cleaning net in film head, so that the dissolved oxygen film of film head is not in damage during brush scrub, and membrane-replaceable head membrane-replaceable head in film head well damage.
Description
Technical field
The utility model is related to sensor technical field, more particularly, to a kind of dissolved oxygen sensor.
Background technology
Dissolved oxygen sensor is used to measure the meltage of oxygen in water, in use, existing dissolved oxygen sensor
Film head cleaning brush scrub during be susceptible to damage, and non-exchange film head.
Utility model content
The purpose of this utility model is exactly to solve the above-mentioned problems, to provide a kind of dissolved oxygen sensor, and film head can be with
It replaces, is not in damage during brush scrub.
In order to solve the above technical problems, the embodiment of the utility model provides a kind of dissolved oxygen sensor, including
Dissolved oxygen sensor body, the end of probe of dissolved oxygen sensor body are provided with membrane-replaceable head, and membrane-replaceable head includes：Cylinder
Shape hollow sleeve, inner wall are provided with internal thread structure, and the end of probe of dissolved oxygen sensor body is provided with and cylindrical hollow
The external thread structure section of internal thread of sleeve respective outer side edges；It is arranged at the dissolved oxygen film of cylindrical hollow sleeve bottom；Pass through adhesive glue
And it is bonded in the metal steel sand net below dissolved oxygen film；The upper end of external thread structure section set by the end of probe of dissolved oxygen sensor body
Portion has ring-shaped step structure, and cylindrical hollow sleeve at ring-shaped step structure with being equipped with sealing ring.
Compared with prior art, dissolved oxygen sensor provided by the utility model installs cleaning net in film head, so that
The dissolved oxygen film of film head is not in damage during brush scrub, and membrane-replaceable head membrane-replaceable in film head well damage
Head.
Further, the mesh number of metal steel sand net is 1500-2000 mesh.
Further, the lower end of cylindrical hollow sleeve is tapered.
Further, cylindrical hollow sleeve is made of stainless steel.
Further, annular protrusion is provided at the top of cylindrical hollow sleeve, the end of probe of dissolved oxygen sensor body
The annular recess with annular protrusion cooperation is provided at ring-shaped step structure.
Description of the drawings
Fig. 1 is dissolved oxygen sensor schematic diagram in the utility model first embodiment；
Fig. 2 is membrane-replaceable head schematic diagram in dissolved oxygen sensor in the utility model first embodiment；
Fig. 3 is membrane-replaceable head schematic diagram in the utility model second embodiment.
Specific embodiment
In order to which the technical means, creative features, achievable purpose and effectiveness for realizing the utility model are easy to understand, under
In conjunction with specific embodiments, the utility model is expanded on further in face.
The utility model first embodiment provides a kind of dissolved oxygen sensor, as shown in Figure 1, it includes dissolved oxygen biography
Sensor body 1, the end of probe of dissolved oxygen sensor body are provided with membrane-replaceable first 2.
Referring to Fig. 2, membrane-replaceable head includes：Cylindrical hollow sleeve 2a made of stainless steel, inner wall are provided with interior spiral shell
Line structure, the end of probe of dissolved oxygen sensor body are provided with the external screw thread knot with cylindrical hollow internal thread of sleeve respective outer side edges
Structure section.Cylindrical hollow sleeve bottom is provided with dissolved oxygen film 2b, and metal steel sand net 2c is bonded in by adhesive glue under dissolved oxygen film
Side, the mesh number of metal steel sand net is 1500-2000 mesh, meets the fluid-tight requirement of oxygen flow gas.Dissolved oxygen sensor body
The upper end of external thread structure section set by end of probe has a ring-shaped step structure, at cylindrical hollow sleeve and ring-shaped step structure
Sealing ring 3 is installed.
The dissolved oxygen sensor installs cleaning net in film head, so that the dissolved oxygen film of film head is scrubbed in the process not in brush
It is present with damage.And membrane-replaceable head membrane-replaceable head in film head well damage.
As can be seen from Figure 2, the lower end of cylindrical hollow sleeve is tapered.After membrane-replaceable head is screwed into end of probe, then may be used
Begin to use, and the detection components inside the end of probe of dissolved oxygen sensor body are the prior art, not in this to go forth.
The second embodiment of the utility model provides a kind of dissolved oxygen sensor, as first embodiment into
One step is improved, and thes improvement is that, referring to Fig. 3, annular protrusion 2d is provided at the top of cylindrical hollow sleeve, and in dissolved oxygen
The annular recess with annular protrusion cooperation is provided at the ring-shaped step structure of the end of probe of sensor body, when entire cylindric
After hollow sleeve is screwed into external thread structure section set by the end of probe of dissolved oxygen sensor body, although cylindrical hollow sleeve and ring
Sealing ring is provided at shape step structure, but after annular protrusion stretches into annular recess, the bound site can be further enhanced
Airtight performance.
As further improvement lies in that, the section of the annular protrusion is triangular in shape, so as to annular protrusion top shape
Corresponding to be into cutting-edge structure, the annular recess set at the ring-shaped step structure of the end of probe of dissolved oxygen sensor body is then
For section recess portion triangular in shape.
It will be understood by those skilled in the art that the respective embodiments described above are to realize the specific implementation of the utility model
Example, and in practical applications, can to it, various changes can be made in the form and details, without departing from the spirit of the utility model
And scope.
Claims (5)
- A kind of 1. dissolved oxygen sensor, including dissolved oxygen sensor body, which is characterized in that the dissolved oxygen sensor body End of probe be provided with membrane-replaceable head, the membrane-replaceable head includes：Cylindrical hollow sleeve, inner wall are provided with internal thread structure, and the end of probe of dissolved oxygen sensor body is provided with and circle The external thread structure section of columnar hollow internal thread of sleeve respective outer side edges；It is arranged at the dissolved oxygen film of cylindrical hollow sleeve bottom；Metal steel sand net below dissolved oxygen film is bonded in by adhesive glue；The upper end of external thread structure section set by the end of probe of the dissolved oxygen sensor body has ring-shaped step structure, described Cylindrical hollow sleeve at ring-shaped step structure with being equipped with sealing ring.
- 2. dissolved oxygen sensor according to claim 1, which is characterized in that the mesh number of the metal steel sand net is 1500- 2000 mesh.
- 3. dissolved oxygen sensor according to claim 1, which is characterized in that the lower end of the cylindrical hollow sleeve is in Taper.
- 4. dissolved oxygen sensor according to claim 1, which is characterized in that the cylindrical hollow sleeve is stainless steel Into.
- 5. dissolved oxygen sensor according to claim 1, which is characterized in that the top of the cylindrical hollow sleeve is set There is annular protrusion, the annular with annular protrusion cooperation is provided at the ring-shaped step structure of the end of probe of dissolved oxygen sensor body Recess portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721307840.8U CN207423947U (en) | 2017-10-11 | 2017-10-11 | Dissolved oxygen sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721307840.8U CN207423947U (en) | 2017-10-11 | 2017-10-11 | Dissolved oxygen sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207423947U true CN207423947U (en) | 2018-05-29 |
Family
ID=62310938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721307840.8U Active CN207423947U (en) | 2017-10-11 | 2017-10-11 | Dissolved oxygen sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207423947U (en) |
-
2017
- 2017-10-11 CN CN201721307840.8U patent/CN207423947U/en active Active
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