CN203672552U - Pressure transmitter - Google Patents
Pressure transmitter Download PDFInfo
- Publication number
- CN203672552U CN203672552U CN201320795056.1U CN201320795056U CN203672552U CN 203672552 U CN203672552 U CN 203672552U CN 201320795056 U CN201320795056 U CN 201320795056U CN 203672552 U CN203672552 U CN 203672552U
- Authority
- CN
- China
- Prior art keywords
- cable
- shell
- pressure
- sensor
- welding groove
- 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 - Lifetime
Links
- 238000003466 welding Methods 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 230000001681 protective effect Effects 0.000 claims abstract description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 abstract description 2
- 239000004020 conductor Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 101100230509 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) hat-1 gene Proteins 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
A pressure transmitter comprises a shell. A pressure inlet joint and a cable fastener are arranged on two ends of the shell respectively. An oiling core pressure sensor is arranged in the pressure inlet joint, and the tail end of the sensor is connected to a transmitter board by a conductor. The transmitter board is connected to a cable inserted in the cable fastener. A welding groove I is arranged in the back part of the sensor, and a welding groove II is arranged in an outer ring of the shell, wherein the outer ring is at one end of the shell in contact with the sensor. A set of sealing press rings is arranged between the cable and the cable fastener. A fastening sleeve is arranged at the end part of the cable fastener. The sensor and the shell of the transmitter are of a one-time welded structure, and V-shaped welding grooves are arranged in the sensor and the shell. Thus low-current plasma welding is facilitated, a temperature rise caused by welding is small, and the sensor is not affected. An insulating protective tube performs good insulation and isolation effects on the transmitter board. The sealing structure on the cable is simple, and the sealing effect is significantly improved.
Description
Technical field
The utility model relates to fluid level measuring device field, specifically a kind of pressure unit.
Background technology
Mainly being made up of silicon pressure drag oiling core body pressure transducer, analog or digital amplification and change-over circuit, stainless steel casing, ventilation cable, rubber seal etc. of current throw-in type silicon piezoresistance liquid level pressure unit, pressure conversion portion is the silicon pressure drag oiling core body pressure transducer that adopts stainless steel isolation diaphragm.Most of manufacturers' production method is to adopt multiple " O " type rubber ring to be assemblied in the wiring board in Stainless Steel Shell in housing front sealing oiling core body pressure transducer, middle part sealing, and rear portion adopts screw rod sealing ventilation cable.The pressure unit of this common structure, although can adapt to compared with the level gauging of multiple types liquid, but because processing technology is comparatively complicated, there is the problem that processing cost is high, be easy to occur long-term the problem that is corroded in oils and corrosive liquid environment in the situation that, the damage of build-up of pressure transmitter, the accuracy that impact is measured.
Utility model content
Technical problem to be solved in the utility model be to provide a kind of sealing property better, process simple pressure unit.
The utility model solves its technical matters by the following technical solutions.
A kind of pressure unit, comprise shell, described shell two ends are respectively equipped with entrance pressure joint, cable fixing part, in described entrance pressure joint, be provided with oiling core body pressure transducer, described oiling core body pressure transducer tail end connects change by wire and send plate, and plate stube cable is sent in described change, and described cable is arranged in cable fixing part, described oiling core body pressure transducer rear portion is provided with welding groove I, and described shell is provided with welding groove II with the outer ring, one end that oiling core body pressure transducer contacts; Between described cable and cable fixing part, be provided with one group of sealing hold-down ring, described cable fixing part end is provided with fixed cover.
Described change send plate to be provided with insulation protection cylinder.
Described entrance pressure joint is provided with tin hat, and described tin hat is provided with entrance pressure hole.
Described welding groove I and welding groove II are V-type welding groove.
Between described sealing hold-down ring, be provided with O-ring seal.
Described cable fixing part is provided with protective sleeve.
Described cable is ventilation cable.
A kind of pressure unit of the present utility model, oiling core body pressure transducer and shell are disposable welded structure, have V-type welding groove on oiling core body pressure transducer and shell, are conducive to little electric current Plasma Welding, the intensification that welding causes is little, can not impact sensor; Becoming the insulation protection cylinder sending on plate can send plate to play good insulation buffer action to becoming; The hermetically-sealed construction at cable place is simple in structure, and significant sealing affection improves.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of pressure unit, comprises shell 6, shell 6 two ends are connected with respectively entrance pressure joint 2, cable fixing part 7, entrance pressure joint 2 is provided with tin hat 1, and tin hat 1 is provided with entrance pressure hole 13, and entrance pressure hole 13 can prevent that impurity from entering pressure unit inside and affecting measuring accuracy; Oiling core body pressure transducer 3 is installed in entrance pressure joint 2, oiling core body pressure transducer 3 tail ends connect change by wire and send plate 4, change is sent on plate 4 insulation protection cylinder 5 is installed, and insulation protection cylinder 5 can send the circuit of plate 4 to play good insulation protection effect to becoming; Become and send plate 4 stube cables 12, cable 12 is ventilation cable; Cable 12 is through in cable fixing part 7, oiling core body pressure transducer 3 rear portions have V-type welding groove I 14, on the outer ring, one end that shell 6 contacts with oiling core body pressure transducer 3, have V-type welding groove II 15, V-type groove is conducive to little electric current Plasma Welding, the intensification that welding causes is little, can not impact sensor, and welding quality is high, good airproof performance; One group of sealing hold-down ring 8 is housed between cable 12 and cable fixing part 7, between sealing hold-down ring 8, O-ring seal 9 is installed; Cable fixing part 7 end thread are connected and fixed cover 10; On cable fixing part 7, be set with protective sleeve 11, can prevent that cable overflexing from causing that snorkel stops up, and also makes pressure unit profile smoothness attractive in appearance simultaneously.
By changing the different ventilation cables such as PVC cable, polyurethane cable, polytetrafluoroethylcable cable, can meet the measurement of the plurality of liquids such as common water level, oil level, corrosive medium.
Claims (7)
1. a pressure unit, comprise shell (6), described shell (6) two ends are respectively equipped with entrance pressure joint (2), cable fixing part (7), in described entrance pressure joint (2), be provided with oiling core body pressure transducer (3), described oiling core body pressure transducer (3) tail end connects change by wire and send plate (4), plate (4) stube cable (12) is sent in described change, described cable (12) is arranged in cable fixing part (7), it is characterized in that: described oiling core body pressure transducer (3) rear portion is provided with welding groove I (14), the outer ring, one end that described shell (6) contacts with oiling core body pressure transducer (3) is provided with welding groove II (15), between described cable (12) and cable fixing part (7), be provided with one group of sealing hold-down ring (8), described cable fixing part (7) end is provided with fixed cover (10).
2. a kind of pressure unit as claimed in claim 1, is characterized in that: described change send plate (4) to be provided with insulation protection cylinder (5).
3. a kind of pressure unit as claimed in claim 1, is characterized in that: described entrance pressure joint (2) is provided with tin hat (1), described tin hat (1) is provided with entrance pressure hole (13).
4. a kind of pressure unit as claimed in claim 1, is characterized in that: described welding groove I (14) is V-type welding groove with welding groove II (15).
5. a kind of pressure unit as claimed in claim 1, is characterized in that: between described sealing hold-down ring (8), be provided with O-ring seal (9).
6. a kind of pressure unit as claimed in claim 1, is characterized in that: described cable fixing part (7) is provided with protective sleeve (11).
7. a kind of pressure unit as claimed in claim 1, is characterized in that: described cable (12) is ventilation cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320795056.1U CN203672552U (en) | 2013-12-06 | 2013-12-06 | Pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320795056.1U CN203672552U (en) | 2013-12-06 | 2013-12-06 | Pressure transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203672552U true CN203672552U (en) | 2014-06-25 |
Family
ID=50968834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320795056.1U Expired - Lifetime CN203672552U (en) | 2013-12-06 | 2013-12-06 | Pressure transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203672552U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203255A (en) * | 2015-09-18 | 2015-12-30 | 华北水利水电大学 | Pressure sensor for underground measurement |
| CN106353026A (en) * | 2016-08-12 | 2017-01-25 | 山东佰测传感科技股份有限公司 | Pressure instrument with excellent damp-proof function |
| CN107153038A (en) * | 2017-06-08 | 2017-09-12 | 铁道第三勘察设计院集团有限公司 | Stratum osmotic coefficient quickly determines probe and its application method |
| CN108896130A (en) * | 2018-06-20 | 2018-11-27 | 天水师范学院 | A kind of small-diameter deep well liquidometer and its processing method |
| CN109489893A (en) * | 2017-09-12 | 2019-03-19 | 上海朝辉压力仪器有限公司 | Miniflow pressure gauge |
| CN110823314A (en) * | 2018-08-14 | 2020-02-21 | 南京沃天科技有限公司 | Liquid level transmitter adopting all-welded structure |
| CN111141442A (en) * | 2020-01-20 | 2020-05-12 | 南京新力感电子科技有限公司 | Pressure sensor |
| US10760989B2 (en) | 2018-05-16 | 2020-09-01 | Te Connectivity Corporation | Submersible transducer configured to impede fluid penetration |
-
2013
- 2013-12-06 CN CN201320795056.1U patent/CN203672552U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203255A (en) * | 2015-09-18 | 2015-12-30 | 华北水利水电大学 | Pressure sensor for underground measurement |
| CN106353026A (en) * | 2016-08-12 | 2017-01-25 | 山东佰测传感科技股份有限公司 | Pressure instrument with excellent damp-proof function |
| CN107153038A (en) * | 2017-06-08 | 2017-09-12 | 铁道第三勘察设计院集团有限公司 | Stratum osmotic coefficient quickly determines probe and its application method |
| CN109489893A (en) * | 2017-09-12 | 2019-03-19 | 上海朝辉压力仪器有限公司 | Miniflow pressure gauge |
| US10760989B2 (en) | 2018-05-16 | 2020-09-01 | Te Connectivity Corporation | Submersible transducer configured to impede fluid penetration |
| CN108896130A (en) * | 2018-06-20 | 2018-11-27 | 天水师范学院 | A kind of small-diameter deep well liquidometer and its processing method |
| CN110823314A (en) * | 2018-08-14 | 2020-02-21 | 南京沃天科技有限公司 | Liquid level transmitter adopting all-welded structure |
| CN111141442A (en) * | 2020-01-20 | 2020-05-12 | 南京新力感电子科技有限公司 | Pressure sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |