CN203910672U - External liquid level switch - Google Patents
External liquid level switch Download PDFInfo
- Publication number
- CN203910672U CN203910672U CN201420276355.9U CN201420276355U CN203910672U CN 203910672 U CN203910672 U CN 203910672U CN 201420276355 U CN201420276355 U CN 201420276355U CN 203910672 U CN203910672 U CN 203910672U
- Authority
- CN
- China
- Prior art keywords
- level switch
- cover
- cylindrical shell
- liquid level
- external liquid
- 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 - Fee Related
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Abstract
The utility model discloses an external liquid level switch comprising a cylinder body, a cylinder cover, and a floating ball liquid level switch. The cylinder cover is connected with an opening on the top of the cylinder body. The floating ball liquid level switch is installed inside the cylinder body. A signal line of the floating ball liquid level switch is led out of the cylinder cover. A liquid inlet is disposed on the lower part of the cylinder. An air outlet is arranged on the upper middle part of the cylinder body. The floating ball liquid level switch is arranged in the cylinder body such that the liquid level switch is improved in a bearing capability and good in impermeability. As an external switch, the liquid level switch has advantages of simple installation and maintenance, a long service life, and a wide application range. In addition, the floating ball liquid level switch is equipped with a built-in two-gang or thee-gang control switch. Therefore, the signal line can be switched on when a floating ball is in a floating position, when the floating ball is in a falling position, or when the floating ball is in the floating position or the falling position.
Description
Technical field
The utility model relates to a kind of external liquid-level switch.
Background technology
Liquid-level switch, is the switch for controlling liquid level, from be mainly divided into contact and non-contact switch in form.Common touch switch, most widely used general with float type level switch.Float type level switch uses magnetic force running, and machinery-free connector, operates simple and reliable.Common float type level switch, comprises the parts such as conduit, ball float, dry spring (or approaching) switch and magnet steel.From container top drilling, conduit and ball float inserted to internal tank and instrument is fixed on flange, in the alert locations in conduit, fixing dry reed switch, the in-built magnet steel of ball float; Ball float rises or declines with liquid level, and in the time that ball float arrives liquid level control point, because the effect of magnet steel in ball float makes dry reed switch closure, contact sends alarm signal; In addition, due to the existence of float type level switch upper limit ring, even if liquid level continues to rise, contact is still kept closed, until liquid level just disconnects lower than control point.But the liquid-level switch of this kind of structure has the pressure differential of bearing, sealing is poor, installation and maintenance are inconvenient, the life-span is short shortcoming.
Utility model content
For the above-mentioned technical problem existing in prior art, the utility model proposes a kind of external liquid-level switch, have that bearing capacity is strong, an advantage such as the convenient and long service life of good airproof performance, installation and maintenance.
To achieve these goals, the utility model adopts following technical scheme:
External liquid-level switch, comprises cylindrical shell, cover and float type level switch, and cover is connected to the upper opening place of cylindrical shell, and float type level switch is arranged on inner barrel, and the holding wire of float type level switch is drawn from cover; Bottom at cylindrical shell is provided with inlet, is provided with gas outlet in the middle and upper part of cylindrical shell.
Further, above-mentioned float type level switch is connected on cover.
Further, the guide rod top of above-mentioned float type level switch is provided with external screw thread, offers screwed hole at the middle part of cover, between guide rod and screwed hole, adopts and is threaded, and the holding wire of float type level switch is drawn from screwed hole inside.
Further, the junction of above-mentioned guide rod and cover is provided with the first sealing ring or adopts welded seal.
Further, above-mentioned holding wire is provided with attachment cap, and attachment cap is positioned at the outside of cylindrical shell, is provided with external screw thread on attachment cap, between attachment cap and screwed hole, adopts and is threaded.
Further, above-mentioned cylindrical shell is provided with internal thread, and cover is provided with external screw thread, between cylindrical shell and cover, adopts and is threaded.
Further, the junction of above-mentioned cylindrical shell and cover is provided with the second sealing ring or adopts welded seal.
Further, above-mentioned float type level switch, built-in two formulas or three-position type control switch.
The utlity model has following advantage:
Liquid-level switch in the utility model comprises cylindrical shell, cover and float type level switch, float type level switch is placed in to the inside of cylindrical shell, the bearing capacity of liquid-level switch itself is strengthened, good airproof performance; Liquid-level switch in the utility model, as external switch, has advantages of that installation and maintenance are easy, long service life and applied widely.
Brief description of the drawings
Fig. 1 is the structural representation of external liquid-level switch in the utility model embodiment 1;
Fig. 2 is the structural representation of Fig. 1 middle cylinder body;
Fig. 3 is the structural representation of cover in Fig. 1;
Fig. 4 is the structural representation of float type level switch in Fig. 1;
Fig. 5 is the structural representation of attachment cap in Fig. 1;
Fig. 6 is the structural representation of external liquid-level switch in the utility model embodiment 2;
Fig. 7 is the structural representation of external liquid-level switch in the utility model embodiment 3.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:
Embodiment 1
As depicted in figs. 1 and 2, external liquid-level switch, comprises cylindrical shell 1, cover 2 and float type level switch 3, and cover 2 is connected to the upper opening place of cylindrical shell 1.Float type level switch 3 is arranged on cylindrical shell 1 inside, and the direction of motion of ball float 301 is consistent with the axis direction of cylindrical shell 1.The holding wire 303 of float type level switch is drawn from cover 2.Be provided with inlet 101 in the bottom of cylindrical shell 1, liquid enters cylindrical shell 1 by feed liquor 101.Concrete, this bottom refers to the diapire of cylindrical shell 2.Be provided with gas outlet 102 in the middle and upper part of cylindrical shell 1, the air pressure inside while entering cylindrical shell 1 for balancing liquid.
As shown in Figure 1, cylindrical shell 1 is provided with internal thread, and cover 2 is provided with external screw thread, adopts and is threaded, and be provided with the second sealing ring 4 in cylindrical shell 1 and the junction of cover 2 between cylindrical shell 1 and cover 2.Certainly, cylindrical shell 1 also can adopt welded seal with the junction of cover 2.
Concrete, float type level switch 3 is connected on cover 2.
As shown in Figure 1, Figure 3 and Figure 4, offer screwed hole 201 at the middle part of cover 2.Float type level switch 3, comprises ball float 301, guide rod 302 and holding wire 303.Guide rod 302 tops are provided with external screw thread.Between guide rod 302 and screwed hole 201, adopt and be threaded, holding wire 303 is drawn from screwed hole 201 inside.In order to improve the sealing of guide rod 302 and cover 2 junctions, be provided with the first sealing ring 5 in guide rod 302 and the junction of cover 2.Certainly, guide rod 302 also can adopt welded seal with the junction of cover 2.
The first sealing ring 5 and the second sealing ring 4 in the utility model act synergistically, and can ensure that external liquid-level switch has good sealing.
As shown in Fig. 1, Fig. 3 and Fig. 5, on holding wire 303, be provided with attachment cap 6.Concrete, attachment cap 6 is provided with holding wire 303 and bores a hole, and holding wire 303 passes in from then on boring a hole.Attachment cap 6 is positioned at the outside of cylindrical shell 1, on attachment cap 6, is provided with external screw thread, between attachment cap 6 and screwed hole 201, adopts and is threaded.Attachment cap 6 is not damaged at cover 2 for the protection of the holding wire 303 of drawing from cylindrical shell 1 inside.
Float type level switch 3, built-in two formulas or three-position type control switch, can be at ball float 301 connection signal line 303 when position on floating, also can be at ball float 301 connection signal line 303 during in lowering position, can also be in ball float 301 position and all can connection signal line 303 during in lowering position on floating.Wherein, control switch comprises dry reed switch or approach switch.
Embodiment 2
The present embodiment 2 is except following technical characterictic and technical characterictic in embodiment 1 are not identical, and all the other technical characterictics of not addressing all can be with reference to embodiment 1.
As shown in Figure 6, be provided with inlet 101 in the bottom of cylindrical shell 1, concrete, this bottom refers to the sidewall bottom of cylindrical shell 2, the middle and upper part of cylindrical shell 1 is provided with gas outlet 102, refers to that the sidewall middle and upper part of cylindrical shell 1 is provided with gas outlet 102, and inlet 101 and gas outlet 102 are positioned at the same side of sidewall.
Embodiment 3
The present embodiment 3 is except following technical characterictic and technical characterictic in embodiment 1 are not identical, and all the other technical characterictics of not addressing all can be with reference to embodiment 1.
As shown in Figure 7, be provided with inlet 101 in the bottom of cylindrical shell 1, concrete, this bottom refers to the sidewall bottom of cylindrical shell 2, the middle and upper part of cylindrical shell 1 is provided with gas outlet 102, refers to that the sidewall middle and upper part of cylindrical shell 1 is provided with gas outlet 102, and inlet 101 and gas outlet 102 are positioned at the not homonymy of sidewall.
Certainly; more than explanation is only preferred embodiment of the present utility model; the utility model is not limited to enumerate above-described embodiment; should be noted that; any those of ordinary skill in the art are under the instruction of this specification; that makes is allly equal to alternative, obvious variant, within all dropping on the essential scope of this specification, ought to be subject to protection of the present utility model.
Claims (8)
1. external liquid-level switch, comprises cylindrical shell, cover and float type level switch, and cover is connected to the upper opening place of cylindrical shell, it is characterized in that, float type level switch is arranged on inner barrel, and the holding wire of float type level switch is drawn from cover; Bottom at cylindrical shell is provided with inlet, is provided with gas outlet in the middle and upper part of cylindrical shell.
2. external liquid-level switch according to claim 1, is characterized in that, described float type level switch is connected on cover.
3. external liquid-level switch according to claim 2, it is characterized in that, the guide rod top of described float type level switch is provided with external screw thread, middle part at cover offers screwed hole, between guide rod and screwed hole, adopt and be threaded, the holding wire of float type level switch is drawn from screwed hole inside.
4. external liquid-level switch according to claim 3, is characterized in that, the junction of described guide rod and cover is provided with the first sealing ring or adopts welded seal.
5. external liquid-level switch according to claim 3, is characterized in that, described holding wire is provided with attachment cap, and attachment cap is positioned at the outside of cylindrical shell, is provided with external screw thread on attachment cap, between attachment cap and screwed hole, adopts and is threaded.
6. external liquid-level switch according to claim 1, is characterized in that, described cylindrical shell is provided with internal thread, and cover is provided with external screw thread, between cylindrical shell and cover, adopts and is threaded.
7. external liquid-level switch according to claim 6, is characterized in that, the junction of described cylindrical shell and cover is provided with the second sealing ring or adopts welded seal.
8. external liquid-level switch according to claim 1, is characterized in that, described float type level switch, built-in two formulas or three-position type control switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420276355.9U CN203910672U (en) | 2014-05-28 | 2014-05-28 | External liquid level switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420276355.9U CN203910672U (en) | 2014-05-28 | 2014-05-28 | External liquid level switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203910672U true CN203910672U (en) | 2014-10-29 |
Family
ID=51784927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420276355.9U Expired - Fee Related CN203910672U (en) | 2014-05-28 | 2014-05-28 | External liquid level switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203910672U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110060888A (en) * | 2019-04-30 | 2019-07-26 | 益阳市万京源电子有限公司 | A kind of durable electrolytic capacitor contains dipping machine |
| JP2020133942A (en) * | 2019-02-14 | 2020-08-31 | ダイニチ工業株式会社 | Humidifier |
-
2014
- 2014-05-28 CN CN201420276355.9U patent/CN203910672U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020133942A (en) * | 2019-02-14 | 2020-08-31 | ダイニチ工業株式会社 | Humidifier |
| CN110060888A (en) * | 2019-04-30 | 2019-07-26 | 益阳市万京源电子有限公司 | A kind of durable electrolytic capacitor contains dipping machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210712 Address after: 266400 Room 401, unit 2, building 3, 98 Yimin lane, Huangdao District, Qingdao City, Shandong Province Patentee after: Han Jun Address before: 266400 Room 401, unit 2, building 3, No. 136, Dongfeng Road, Huangdao District, Qingdao City, Shandong Province Patentee before: Han Shaofang |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 |