CN101858763B - Integraph shell thread-guide sealing structure for ultrasonic flow and heat meter - Google Patents
Integraph shell thread-guide sealing structure for ultrasonic flow and heat meter Download PDFInfo
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- CN101858763B CN101858763B CN2010101882735A CN201010188273A CN101858763B CN 101858763 B CN101858763 B CN 101858763B CN 2010101882735 A CN2010101882735 A CN 2010101882735A CN 201010188273 A CN201010188273 A CN 201010188273A CN 101858763 B CN101858763 B CN 101858763B
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- waterproof
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- line plate
- transit line
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Abstract
The invention relates to an integraph shell thread-guide sealing structure for an ultrasonic flow and heat meter, which comprises an integraph shell (1). The integraph shell is internally provided with a sealed inner cavity (2) of an installation circuit board and elements. The invention is characterized in that the integraph shell (1) is provided with a sealed isolation cavity (3); a watertight switch circuit board (7) is arranged between the sealed isolation cavity (3) and the sealed inner cavity (2); external cables of an integraph are electrically connected with electric wires and/or joints which are arranged in the sealed inner cavity (2) and are in one-to-one correspondence with the external cables through the watertight switch circuit board (7). The integraph shell thread-guide sealing structure for an ultrasonic flow and heat meter adopts an internal isolation mode and achieves watertight grade up to above IP6.
Description
Technical field
The invention belongs to acoustics, field of sensing technologies, particularly utilize ultrasonic detecting technology, specifically is that a kind of ultrasonic flow rate, calorimeter integraph housing are crossed the linear sealing structure.
Background technology
Pipeline section type ultrasonic flow instrument is to be principle with " velocity contrast method ", measures the instrument of fluid flow in the pipeline section pipe.It has adopted advanced multiple-pulse technology, signal digitalized treatment technology and error correcting technique, makes flow instrument more can adapt to on-the-spot environment, measures more convenient, economical, accurate.Can be widely used in fields such as oil, chemical industry, metallurgy, electric power, plumbing.
The information of rate of flow of fluid on just carrying when ultrasound wave is propagated in flowing fluid.Therefore just can detect flow rate of fluid through the ultrasound wave that receives, thereby be converted into flow.Mode according to detecting can be divided into dissimilar ultrasonic flow meters such as propagation speed differential method, Doppler method, wave beam deflection method, noise method and correlation method.
Ultrasonic flow rate, calorimeter integraph housing are made up of two housings that engage up and down usually; Be inlaid with O-ring seal between two housings, reach good sealing effectiveness, yet; Waterproof sealing for the cable that is connected with integraph enclosure interior circuit uses the rubber protective ring that is set in the cable outside usually; The rubber protective ring is roughly dumb-bell shape, and the thin waist in stage casing is embedded in the groove on the integraph housing, and cable penetrates back entering integraph enclosure interior in the protective ring; The rubber protective ring can also protect cable not hurt except can playing the waterproof sealing effect.Yet the rubber protective ring is processed by flexible material, can't reach the waterproof rank of static seal; When the cable flexion torsion; Because the distortion of protective ring produces the gap easily between protective ring and cable sheath, from then on moisture and dust will invade the integraph housing.The classification of waterproof of above-mentioned protective ring is lower, can only reach IP4, i.e. the splashproof type.
The producer that also has uses water joint to replace protective ring; Water joint adopts a plurality of elasticity jaws and clamping ring that the crust of cable is clamped; Though can play certain waterproof sealing effect, be to use the water joint cost higher, the water joint volume is bigger; Inconvenient installation is only applicable to large-scale instrument usually.
Another defective of water joint is; Can't thoroughly realize Seal of Cables; Sometimes under high temperature and high pressure environment; Moisture is very easily by between the overseas skin of cable insulation, and perhaps the fine gap between inner wire and the insulation course gets into the integraph housing, and the moisture of long-term accumulation will cause components and parts and circuit malfunction in the integraph housing.The classification of waterproof of above-mentioned water joint is not high, only can reach IP5, i.e. jet-prevention type yet.Still be difficult to satisfy the waterproof requirement of ultrasonic flow rate, calorimeter integraph.
Summary of the invention
The object of the invention provides a kind of ultrasonic flow rate, calorimeter integraph housing is crossed the linear sealing structure, to overcome above-mentioned defective.
Technical scheme of the present invention is:
A kind of ultrasonic flow rate, calorimeter integraph housing are crossed the linear sealing structure; Comprise the integraph housing; Be provided with the closed cavity of mounting circuit boards and components and parts in the integraph housing; Said integraph housing is provided with the seal chamber, is provided with waterproof transit line plate between seal chamber and the closed cavity, and electric wire and/or joint are electrically connected through waterproof transit line plate one to one with it in integraph external cable and the closed cavity.
Said seal chamber is provided with seal groove, is provided with O-ring seal in the seal groove, and waterproof transit line plate and O-ring seal are fitted.
Be provided with screw hole column around the said seal groove, waterproof transit line plate is provided with pilot hole, and waterproof transit line plate is installed between seal chamber and the closed cavity through screw and screw hole column.
The said waterproof transit line plate outside is provided with a plurality of outside weldings heads, and the integraph external cable is electrically connected with above-mentioned a plurality of outside weldings heads respectively; Waterproof transit line plate inboard is provided with and a plurality of one to one interior welds heads of a plurality of outside weldings heads, and electric wire and/or joint and corresponding a plurality of interior welds head are electrically connected one to one with the integraph external cable in the closed cavity.
Said waterproof transit line plate is provided with the water-proof silica-gel layer.
Be embedded the rubber protective ring on the said integraph housing.
Said seal chamber is provided with waterproof cover.
The invention has the beneficial effects as follows:
Ultrasonic flow rate of the present invention, calorimeter integraph housing are crossed the mode that the linear sealing structure adopts internal insulation; Through the wiring board switching, change movable sealing structure into static seal structure, sealing effectiveness obtains lifting in essence; Overcome the technological prejudice that adopts outer seal structure such as protective ring or water joint; Solved the integraph housing that perplexs industry for a long time and crossed a line waterproof difficult problem,, reduced and safeguard that replacement cost has played enormous function for the serviceable life of improving integraph.
Ultrasonic flow rate of the present invention, calorimeter integraph housing are crossed the linear sealing structure can thoroughly stop moisture from protective ring or the inner phenomenon of invading the integraph housing of cable; Classification of waterproof can reach more than the IP6; It is water-resistant type; Can stand the injection that any direction directly receives water and also can not go into inside, even under waterly under defined terms also can not get into inside.Through strong water spray test and submerging test in short-term, can both effectively completely cut off aqueous vapor, substantially exceed like product, be enough to the request for utilization under the competent actual harsh conditions.
Description of drawings
Fig. 1 crosses the Facad structure synoptic diagram of linear sealing structure for integraph housing of the present invention.
Fig. 2 crosses the structure synoptic diagram of linear sealing structure for integraph housing of the present invention.
Fig. 3 crosses the three-dimensional decomposition texture synoptic diagram of linear sealing structure for integraph housing of the present invention.
Among the figure: 1, integraph housing, 2, closed cavity, 3, the seal chamber, 4, seal groove, 5, screw hole column, 6, O-ring seal, 7, waterproof transit line plate, 8, the outside weldings head, 9, the interior welds head, 10, the rubber protective ring.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described:
A kind of ultrasonic flow rate, calorimeter integraph housing are crossed the linear sealing structure; Comprise integraph housing 1; Be provided with the closed cavity 2 of mounting circuit boards and components and parts in the integraph housing 1; Integraph housing 1 is provided with seal chamber 3, is provided with waterproof transit line plate 7 between seal chamber 3 and the closed cavity 2, and electric wire and/or joint are electrically connected through waterproof transit line plate 7 one to one with it in integraph external cable and the closed cavity 2.
Through seal chamber 3 external world possibly done the isolation on the space from the aqueous vapor and the closed cavity 2 of protective ring and the entering of cable internal clearance; Even be full of aqueous vapor in the seal chamber 3; Can not get into closed cavity 2 yet, guarantee the operate as normal of closed cavity 2 internal circuits and components and parts.
Waterproof transit line plate 7 is not only realized inside and outside being electrically connected, and more gives the circuit board of closed cavity 2 and the relatively independent drying and waterproofing environment that components and parts provide a sealing, and the influence of extraneous aqueous vapor is reduced to minimum degree.
Be provided with screw hole column 5 around the seal groove 4, waterproof transit line plate 7 is provided with pilot hole, and waterproof transit line plate 7 is installed between seal chamber 3 and the closed cavity 2 through screw and screw hole column 5.Removably connect to producing, install, safeguard the facility of all having brought the utmost point through screw.
Said waterproof transit line plate 7 outsides are provided with a plurality of outside weldings 8, and the integraph external cable is electrically connected with above-mentioned a plurality of outside weldings 8 respectively; Waterproof transit line plate 7 inboards are provided with and a plurality of outside weldings 8 a plurality of one to one interior welds 9, in the closed cavity 2 with the integraph external cable one to one electric wire and/or joint and corresponding a plurality of interior welds 9 be electrically connected.During connection, only need to adopt conventional welding technology, easy and simple to handle, can therefore not increase the production burden, guarantee higher production efficiency.
Waterproof transit line plate 7 is provided with the water-proof silica-gel layer.The water-proof silica-gel layer prevents between the outside weldings 8 because of the aqueous vapor short circuit.
Be embedded rubber protective ring 10 on the integraph housing 1.
The integraph external cable passes rubber protective ring 10 and gets into seal chamber 3, uses rubber protective ring 10 as the first road waterproof sealing structure, and it is inner to prevent that mainly bigger particle dust from getting into integraph, further strengthens the waterproof sealing performance.The branch of integraph external cable peels off out the back and is electrically connected with outside weldings 8, coating water-proof silica-gel layer on the soldered joint 8 externally after welding is accomplished.
Integraph housing 1, closed cavity 2, seal chamber 3, seal groove 4 and screw hole column 5 all as a whole, one-body molded through mould.
Also be provided with waterproof cover on the seal chamber 3.Waterproof cover can pass through conventional meanses such as glue envelope, O-ring seal and realize good sealing effectiveness.
The technology that the present invention does not relate to all can be passed through existing techniques in realizing.
Claims (4)
1. a ultrasonic flow rate, calorimeter integraph housing are crossed the linear sealing structure; Comprise integraph housing (1); Be provided with the closed cavity (2) of mounting circuit boards and components and parts in the integraph housing (1); It is characterized in that said integraph housing (1) is provided with seal chamber (3), be provided with waterproof transit line plate (7) between seal chamber (3) and the closed cavity (2), electric wire and/or joint are electrically connected through waterproof transit line plate (7) one to one with it in integraph external cable and the closed cavity (2); Said waterproof transit line plate (7) outside is provided with a plurality of outside weldings heads (8), and the integraph external cable is electrically connected with above-mentioned a plurality of outside weldings heads (8) respectively; Waterproof transit line plate (7) inboard is provided with and a plurality of one to one interior welds heads of a plurality of outside weldings heads (8) (9), and electric wire and/or joint and corresponding a plurality of interior welds heads (9) are electrically connected one to one with the integraph external cable in the closed cavity (2); Said seal chamber (3) is provided with waterproof cover; Said seal chamber (3) is provided with seal groove (4), is provided with O-ring seal (6) in the seal groove (4), and waterproof transit line plate (7) is fitted with O-ring seal (6).
2. the described ultrasonic flow rate of eradication claim 1, calorimeter integraph housing are crossed the linear sealing structure; It is characterized in that said seal groove (4) is provided with screw hole column (5) on every side; Waterproof transit line plate (7) is provided with pilot hole, and waterproof transit line plate (7) is installed between seal chamber (3) and the closed cavity (2) through screw and screw hole column (5).
3. the described ultrasonic flow rate of eradication claim 1, calorimeter integraph housing are crossed the linear sealing structure, it is characterized in that said waterproof transit line plate (7) is provided with the water-proof silica-gel layer.
4. the described ultrasonic flow rate of eradication claim 1, calorimeter integraph housing are crossed the linear sealing structure, it is characterized in that being embedded on the said integraph housing (1) rubber protective ring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101882735A CN101858763B (en) | 2010-05-31 | 2010-05-31 | Integraph shell thread-guide sealing structure for ultrasonic flow and heat meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101882735A CN101858763B (en) | 2010-05-31 | 2010-05-31 | Integraph shell thread-guide sealing structure for ultrasonic flow and heat meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101858763A CN101858763A (en) | 2010-10-13 |
| CN101858763B true CN101858763B (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101882735A Active CN101858763B (en) | 2010-05-31 | 2010-05-31 | Integraph shell thread-guide sealing structure for ultrasonic flow and heat meter |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868629A (en) * | 2012-12-18 | 2014-06-18 | 杭州三花研究院有限公司 | Ultrasonic heat meter |
| CN105093228A (en) * | 2014-05-08 | 2015-11-25 | 光宝科技股份有限公司 | Supersonic sensing module |
| CN105865546B (en) * | 2015-01-23 | 2022-03-15 | 北京斯威尔工业测量仪器有限公司 | Solid flow meter mounting structure |
| CN108012411A (en) * | 2017-12-25 | 2018-05-08 | 海鹰企业集团有限责任公司 | A kind of direction waterproof method of cable and underwater sound equipment connection structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2739143Y (en) * | 2004-10-21 | 2005-11-09 | 王京森 | Belt conveyor roller bearing sealing assembly |
| CN101656375A (en) * | 2008-08-20 | 2010-02-24 | 和硕联合科技股份有限公司 | Electronic device and connector module having sealing property thereof |
| CN201680868U (en) * | 2010-05-31 | 2010-12-22 | 江苏迈拓智能仪表有限公司 | Ultrasonic flow and heat meter integraph shell threading seal structure |
-
2010
- 2010-05-31 CN CN2010101882735A patent/CN101858763B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2739143Y (en) * | 2004-10-21 | 2005-11-09 | 王京森 | Belt conveyor roller bearing sealing assembly |
| CN101656375A (en) * | 2008-08-20 | 2010-02-24 | 和硕联合科技股份有限公司 | Electronic device and connector module having sealing property thereof |
| CN201680868U (en) * | 2010-05-31 | 2010-12-22 | 江苏迈拓智能仪表有限公司 | Ultrasonic flow and heat meter integraph shell threading seal structure |
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| CN101858763A (en) | 2010-10-13 |
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Address after: 211178 No. 3, Xiang Feng Road, Jiangning Binjiang Economic Development Zone, Nanjing, Jiangsu Patentee after: Maxtor instrument Limited by Share Ltd Address before: 211178 No. 3, Xiang Feng Road, Jiangning Binjiang Economic Development Zone, Nanjing, Jiangsu Patentee before: Jiangsu Maituo Intelligent Meter Co., Ltd. |
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