CN102338646A - Instrument housing - Google Patents
Instrument housing Download PDFInfo
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- CN102338646A CN102338646A CN2010102382873A CN201010238287A CN102338646A CN 102338646 A CN102338646 A CN 102338646A CN 2010102382873 A CN2010102382873 A CN 2010102382873A CN 201010238287 A CN201010238287 A CN 201010238287A CN 102338646 A CN102338646 A CN 102338646A
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- housing
- cable
- main casing
- platform
- circular
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Abstract
The invention relates to an instrument housing which is of an upper-lower structure and is composed of a main housing and an upper cover, wherein the lower part of the main housing is provided with a connecting device which is used for being connected with a sensor or other devices; and the upper end of the main housing is of a circular type and is provided with an external thread which is used for being connected with the upper cover, and the inner side of the upper cover is provided with an internal thread. The instrument housing is characterized in that a platform is formed inside the circular-type upper end of the main housing; a cable introducing inlet is arranged on the platform; and the housing side face below the platform is of an inward indent form relative to the side face of the circular-type upper end above the platform so as to realize the cable introducing inlet structure above the platform, thus, a cable introducing device (such as a waterproof joint) can be installed at the bottom of the circular-type upper end of the housing in a way from bottom to top, an external cable can enter into the housing in a way from bottom to top and an appropriate space can be left for introducing the cable. As the cable is introduced into the housing from bottom to top, rainwater cannot penetrate or flow in the housing through the cable inlet when the housing is subjected to the rain. Therefore, the reliability of the rain-proof performance of the housing can be ensured from the structure design.
Description
Technical field
The present invention relates to a kind of detection and use meter case, belong to metering and process and detect the control field.
Background technology
In activities such as industrial processes control, metering, need to use corresponding instrument that physical quantitys such as temperature, pressure, flow and thing position are detected, like thermometer, tensimeter, flowmeter, level meter etc.These instrument all have a shell, and various electronic units, mechanical parts, sensor etc. are installed in the housing, and the material of shell can be plastics, also can be metal.The effect of shell is that device, the parts to its inside are protected, and prevents the erosion of outside bump, corrosive gas or liquid, guarantees that instrument can work steady in a long-term.Meter case must have good sealing property, reliable degree of protection, and particularly when outdoor mounted is used, or under the environment of gas or liquid that is corrosive, the positiver sealing of instrument is even more important.
Meter case is made up of main casing and cap usually, and the shell that has is a up-down structure, is cap (loam cake) above, is main casing below; Have plenty of left and right sides structure, the left and right sides is a cap, and the centre is a main casing.No matter be any structure, all need the introducing of external cable, be used for instrument power supply, outwards transmit the detection limit signal.Meter housing is provided with the cable intake and cable entry is installed, and cable entry is generally water joint, and cable gets into gauge internal through water joint.Water joint normally is installed in the side of instrument main casing with the mode of level; Cable gets in the meter housing with the direction of level; Should screw after cable the is introduced nut of water joint receives when preventing outdoor mounted that rainwater flow in the instrument through cable when drenching with rain.Ultrasonic material level meter as shown in Figure 1, its cable gets in the meter housing through the water joint horizontal mode of side, and what the watchcase bottom connected is ultrasonic probe.
In practical application, the instrument of outdoor mounted rainwater often occurs and enters into the situation that causes instrument to be corroded and to damage in the instrument through water joint not because there has been the cable waterproof joint just can guarantee that rainwater does not get in the housing.Reason has two, at first is the positional structure of water joint and the reason of used material.Water joint is made up of adapter body, back nut and inner plastics convergent-divergent head and rubber seal.After cable is introduced, the nut of screwing, inner plastics convergent-divergent head can make rubber seal push down cable, and the space around eliminating forms sealing.But because inner plastics convergent-divergent head and rubber seal have certain elasticity; Through long retroaction, nut can produce loosening gradually, the slit can occur around the cable; Owing to be the horizontal direction lead-in cable, rainwater just may infiltrate gauge internal when drenching with rain receiving.If former two is that the installation and maintenance personnel of instrument fail the water joint of screwing when installing or safeguarding therefore, then can cause the intrusion of rainwater inevitably.
Summary of the invention
The object of the invention is exactly the shell that will design a kind of new construction, prevents that effectively instrument from receiving rainwater when drenching with rain flows into the gauge internal situation through the cable intake generation in outdoor mounted.
The present invention is a up-down structure, is made up of main casing and loam cake, and the main casing bottom is provided with coupling arrangement and is used for being connected with sensor or other equipment.The main casing upper end is round, is provided with external thread, is used for being connected with loam cake, and the loam cake inboard is provided with internal thread.Characteristic of the present invention is: the inside in the round upper end of main casing forms a platform; On platform, be provided with the cable intake; The side that is in this platform below is for the circular upper side of its top; Be inside indent form,, make cable entry (like water joint) can be installed in the bottom of the round upper end of housing with mode from bottom to top to realize the cable intake structure of its top; Guarantee the entering enclosure interior that external cable can be from bottom to top, for suitable space is reserved in the introducing of cable.Because cable is entering enclosure interior from bottom to top, rainwater just can not penetrate into or flow in the housing housing through cable inlet when drenching with rain receiving.
Guaranteed water-resistant performance reliable of housing from structural design.
Description of drawings
Below in conjunction with accompanying drawing the present invention is done further detailed description.
Fig. 1 is that the profile and the cable of existing a kind of ultrasonic material level meter introduced mode.
Fig. 2 is the meter housing outside drawing of the specific embodiment of the invention 1.
Fig. 3 is the meter housing loam cake cut-open view of the specific embodiment of the invention 1.
Fig. 4 is the meter housing main casing top view of the specific embodiment of the invention 1.
Fig. 5 is the meter housing main casing cut-open view of the specific embodiment of the invention 1.
Fig. 6 is the meter housing main casing upper end sectional view of the specific embodiment of the invention 1.
Fig. 7 is the meter housing main casing lower end sectional view of the specific embodiment of the invention 1.
Fig. 8 is the meter housing outside drawing of the specific embodiment of the invention 2.
Fig. 9 is the meter housing main casing top view of the specific embodiment of the invention 2.
Figure 10 is the meter housing main casing sectional view of the specific embodiment of the invention 2.
Figure 11 is the meter housing main casing backplan of the specific embodiment of the invention 2.
Wherein: Fig. 2-Fig. 7 (embodiment 1):
Fig. 8-Figure 11 (embodiment 2):
Square thread under inside panel 30 main casings of 26 main casing lower end octahedral nuts, 27 cable intakes, 28 fixed legs, 29 main casings upper end, 25 main casing lower ends, 21 main casings, 22 loam cakes, 23 water joints, 24 main casing circles upper end
Embodiment
This paper proposes 2 preferred specific embodiments (infinite), and specifically details are as follows.
Specific embodiment 1
Like Fig. 2-shown in Figure 5, Fig. 2 is the meter housing outside drawing of present embodiment, and 1 is circular upper cover; 2 is main casing, and the center section of main casing is the cylindrical of a side indent, and 3 is water joint; The upper part 4 of main casing 2 is circular; Water joint 3 be installed on circular upper end 4 below, be the indent form in the side of the main casing 2 of water joint 3 present positions, for water joint is abdicated the space; Housing lower end 5 is that large semi-circular is corresponding with upper end 4, and 6 are used for being connected of housing and other parts or equipment for the octahedral nut; Fig. 3 is the loam cake cut-open view, and 13 is internal thread; As shown in Figure 5, circular upper end 4 has external thread 9, and loam cake 1 and main casing 2 are connected through screw thread and screw, and should be added with O-ring seals between the two; As shown in Figure 5; Inside in circular upper end 4 is provided with a platform 7, and the centre 7 is a cable intake 8, is used to install water joint 3; The side of platform 7 belows is the indent form; Promptly for the lateral surface of the circular upper end 4 above it to the enclosure interior indentation, be used for installation water joint 3 from bottom to top thereby make the below of platform 7 have suitable space outerpace, make the entering enclosure interior that external cable can be from bottom to top; Cable intake 8 is a female thread structure, so that be connected with corresponding water joint, Fig. 6 and Fig. 7 are respectively the main casing 2 crosscut sectional view of lower end diverse location above that, can more fully express shell structure of the present invention and cable and introduce version; Like Fig. 4, shown in Figure 5; Be provided with fixed leg 10 at the enclosure interior diverse location; Be used to install electronic unit or miscellaneous part, be provided with through hole 11, be convenient to the application that is provided with of internal signal wire or other structures in lower housing portion; Inside at the octahedral nut 6 bottom of housing is screw thread 12, is used for and being connected of sensor or other parts or equipment.
The water joint of present embodiment is to be installed on the housing with from bottom to top direction, cable also so entering enclosure interior from bottom to top, rainwater just can not penetrate into or flow in the housing housing through cable inlet when drenching with rain receiving.Guaranteed water-resistant performance reliable of housing from structural design.
Like Fig. 8-shown in Figure 11, Fig. 8 is the meter housing outside drawing of present embodiment, and 22 is circular upper cover; 21 is main casing, and 21 upper and lower sides are circular, and the centre is square; 23 is water joint, and quantity is 2, and the upper part 24 of main casing 21 is circular; Water joint 23 be installed on circular upper end 24 below, the centre of main casing 21 is square contracts in for upper end 24, for water joint 23 is abdicated installing space; Housing lower end 25 is circular corresponding with upper end 24, and 26 are used for being connected of housing and other parts or equipment for the octahedral nut;
The water joint of present embodiment is to be installed on the housing with from bottom to top direction equally, cable also so entering enclosure interior from bottom to top, rainwater just can not penetrate into or flow in the housing housing through cable inlet when drenching with rain receiving.Guaranteed water-resistant performance reliable of housing from structural design.
Claims (4)
1. a meter case is up-down structure, is made up of main casing and loam cake; The main casing upper end is round, is provided with external thread, is used for being connected with loam cake; The loam cake inboard is provided with internal thread; The characteristic of the utility model is: the inside in the round upper end of main casing forms a platform, on platform, is provided with the cable intake, and the side that is in this platform below is for the circular upper side of its top; Be inside indent form, cable entry is installed in the bottom of the round upper end of housing with mode from bottom to top.
2. like the said meter case of claim 1, it is characterized in that: the center section of main casing is the cylindrical of a side indent.
3. like the said meter case of claim 1, it is characterized in that: the upper and lower side of main casing is for circular, and the centre is square.
4. like the said meter case of claim 1, it is characterized in that: the main casing bottom is provided with coupling arrangement and is used for being connected with sensor or miscellaneous part or equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102382873A CN102338646A (en) | 2010-07-19 | 2010-07-19 | Instrument housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102382873A CN102338646A (en) | 2010-07-19 | 2010-07-19 | Instrument housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102338646A true CN102338646A (en) | 2012-02-01 |
Family
ID=45514496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102382873A Pending CN102338646A (en) | 2010-07-19 | 2010-07-19 | Instrument housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102338646A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044386A (en) * | 2015-06-29 | 2015-11-11 | 中国农业大学 | Aquatic animal behavior monitoring sensor |
| CN107560783A (en) * | 2017-08-08 | 2018-01-09 | 国网福建省电力有限公司 | A kind of SF6 pressure gauges for power system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0271637A2 (en) * | 1986-12-15 | 1988-06-22 | ALFRED TEVES GmbH | Inductive sensor |
| JP3301017B2 (en) * | 1997-08-06 | 2002-07-15 | 矢崎総業株式会社 | Gas meter circuit waterproof structure |
| JP2002303635A (en) * | 2001-01-30 | 2002-10-18 | Sumitomo Electric Ind Ltd | Rotation detecting sensor |
| CN201251454Y (en) * | 2008-09-08 | 2009-06-03 | 北京交通大学 | High-voltage transmission line pole tower safe operation monitor |
| CN201716036U (en) * | 2010-07-19 | 2011-01-19 | 董志伟 | Instrument case |
-
2010
- 2010-07-19 CN CN2010102382873A patent/CN102338646A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0271637A2 (en) * | 1986-12-15 | 1988-06-22 | ALFRED TEVES GmbH | Inductive sensor |
| JP3301017B2 (en) * | 1997-08-06 | 2002-07-15 | 矢崎総業株式会社 | Gas meter circuit waterproof structure |
| JP2002303635A (en) * | 2001-01-30 | 2002-10-18 | Sumitomo Electric Ind Ltd | Rotation detecting sensor |
| CN201251454Y (en) * | 2008-09-08 | 2009-06-03 | 北京交通大学 | High-voltage transmission line pole tower safe operation monitor |
| CN201716036U (en) * | 2010-07-19 | 2011-01-19 | 董志伟 | Instrument case |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044386A (en) * | 2015-06-29 | 2015-11-11 | 中国农业大学 | Aquatic animal behavior monitoring sensor |
| CN107560783A (en) * | 2017-08-08 | 2018-01-09 | 国网福建省电力有限公司 | A kind of SF6 pressure gauges for power system |
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| DD01 | Delivery of document by public notice |
Addressee: Dong Zhiwei Document name: the First Notification of an Office Action |
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| DD01 | Delivery of document by public notice |
Addressee: Dong Zhiwei Document name: Notification that Application Deemed to be Withdrawn |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120201 |