CN203721625U - Baffle-plate-type flow switch - Google Patents
Baffle-plate-type flow switch Download PDFInfo
- Publication number
- CN203721625U CN203721625U CN201420098597.3U CN201420098597U CN203721625U CN 203721625 U CN203721625 U CN 203721625U CN 201420098597 U CN201420098597 U CN 201420098597U CN 203721625 U CN203721625 U CN 203721625U
- Authority
- CN
- China
- Prior art keywords
- traffic channel
- baffle
- baffle plate
- type flow
- flow switch
- 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 a baffle-plate-type flow switch comprising a flow channel and a baffle plate. The baffle plate is connected to the upper portion of the flow channel and rotates with a joint portion between the baffle plate and the flow channel as the axis. A proximity switch is disposed on the outside of the flow channel. A trigger medium used as a sensing element of the proximity switch is arranged on the baffle plate. When no fluid passes through the flow channel in an initial state, the baffle plate is located at a position being perpendicular to the axis direction of the flow channel; when fluid passes through the flow channel, the baffle plate can be pushed open by overcoming the self-weight of the baffle plate and the resistance reduces evidently; and when the flow of the fluid reaches a certain threshold, the trigger medium on the baffle plate triggers the proximity switch and a switching value is output. Compared with the conventional baffle-plate-type flow switch, the baffle-plate-type flow switch has higher sensitivity. The baffle-plate-type flow switch is characterized by non-contact sensing, so that the service life is prolonged.
Description
Technical field
The utility model relates to a kind of flow switch, is specifically related to a kind of baffle-type flow switch.
Background technology
Baffle-type flow switch is a kind of of mechanical flow switch.Common baffle-type flow switch mostly is target type flow switch, its operation principle is as follows: when fluid rushes at blade, blade oscillating, change the relative position of magnet and reed contact, excited contactor to make its closed or disconnection, once fluid is interrupted, blade is got back to original position, another excites reed contact, and the mutual repulsion of two magnet provides the flow switch required power that resets, the state before contactor returns to.Yet, baffle-type flow switch of the prior art, there is resistance in fluid, cause the sensitivity of baffle-type flow switch not high when washing blade open, and useful life is short.
Utility model content
For the above-mentioned technical problem existing in prior art, the utility model proposes a kind of baffle-type flow switch, this flow switch has advantages of highly sensitive, long service life.
To achieve these goals, the utility model adopts following technical scheme:
Baffle-type flow switch, comprise traffic channel and baffle plate, described baffle plate is connected to the top of traffic channel, and take the connecting portion of baffle plate and traffic channel and be that axle rotates, while passing through without fluid in traffic channel inside, baffle plate is positioned at the position vertical with traffic channel axis direction; Traffic channel is provided with approach switch outward, and the triggering medium as described approach switch sensing element is installed on baffle plate.
Further, above-mentioned approach switch is passive approach switch, triggers medium and is made by magnetic or ferrous material.
Further, above-mentioned traffic channel top is provided with blind pipe, and the length direction of blind pipe is vertical with the axis direction of traffic channel, and approach switch is positioned at blind pipe inside, and approach switch is adjustable in the degree of depth of blind pipe inside.
Further, above-mentioned traffic channel top is provided with radially interface, and radially interface is communicated with in a tubular form and with traffic channel, radially on interface, is disposing seal cover, seal cover with radially between interface employing be threaded, blind pipe is welded on the middle part of seal cover.
Further, on above-mentioned seal cover, be welded with nut, blind pipe passes nut and is welded on seal cover.
Further, above-mentioned traffic channel inwall is provided with the collar flange parallel with the axis direction of traffic channel, the diameter of section at collar flange place is less than the diameter of section at all the other positions of traffic channel, and while passing through without fluid in traffic channel inside, baffle plate is taken on the annular surface that is placed on collar flange.
The utility model has the advantages that:
The baffle-type flow switch of addressing in the utility model, comprise traffic channel and baffle plate, baffle plate is connected to the top of traffic channel, and take the connecting portion of baffle plate and traffic channel and be that axle rotates, when initial condition is passed through without fluid in traffic channel inside, baffle plate is positioned at the position perpendicular to traffic channel axis direction, when traffic channel inside has fluid to pass through, only needing to overcome baffle plate deadweight can back down baffle plate, resistance obviously reduces, and reach after certain threshold value at fluid flow, the triggering medium being arranged on baffle plate can trigger approach switch output switch amount, baffle-type flow switch compared to existing technology, sensitivity obviously improves.
As advantageous embodiment of the present utility model, approach switch is adjustable in the degree of depth of blind pipe inside, because approach switch is constant with the distance of reaction that triggers medium, the degree of going deep into by adjusting proximity switch in blind pipe inside, change the maximum opening degree of baffle plate, and then control traffic channel inner stream flow size.
Accompanying drawing explanation
Fig. 1 is the structural representation of baffle-type flow switch in the utility model;
Fig. 2 is position view when approach switch triggers medium triggering approach switch when blind pipe bottom in Fig. 1;
Fig. 3 is position view when approach switch does not trigger medium triggering approach switch when blind pipe bottom in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:
In conjunction with shown in Fig. 1 to Fig. 3, baffle-type flow switch, comprises traffic channel 1 and baffle plate 2.Baffle plate 2 is connected to the top of traffic channel 1, and take the connecting portion A of baffle plate and traffic channel and be that axle rotates.When traffic channel inside is passed through without fluid, baffle plate 2 turns to the position vertical with traffic channel 1 axis direction under self gravitation effect, as shown in Figure 1, and baffle-type flow switch horizontal positioned in Fig. 1.Traffic channel 1 is outer is provided with approach switch 3, is provided with and triggers medium 4 on baffle plate 2, and triggering medium 4 is the sensing element of approach switch 3.
When traffic channel 1 inside has fluid to pass through, the deadweight that only need overcome baffle plate washes baffle plate 2 open, resistance obviously reduces, when baffle plate 2 arrives the induction range of approach switch 3, approach switch 3 output switch amounts, than baffle-type flow switch of the prior art, the utility model sensitivity obviously improves.Preferably, approach switch can adopt passive approach switch, triggers medium and is made by magnetic or ferrous material.
For convenience of laying of approach switch 3, blind pipe 5 is set above traffic channel 1, the length direction of blind pipe 5 is vertical with the axis direction of traffic channel 1, and approach switch 3 is positioned at blind pipe 5 inside, and approach switch 3 is adjustable in the degree of depth of blind pipe 5 inside.Constant distance due to approach switch 3 induction triggering media 4, by adjusting approach switch 3 in the degree that stretches into of blind pipe 5 inside, can change the maximum opening degree of baffle plate 2, and then it is big or small to control traffic channel 1 internal flow flow, the maximum opening degree of baffle plate 2 when showing respectively approach switch 3 shown in Fig. 2 and Fig. 3 and being placed in blind pipe 5 bottoms and not being placed in blind pipe 5 bottom, the critical localisation when triggering medium 4 and triggering approach switch 3.Certainly, also can adopt the mode of blind pipe 5 up-down adjustment, reach the effect identical with above-mentioned adjusting.
Concrete, above traffic channel 1, be provided with radially interface 6, radially interface is communicated with in a tubular form and with traffic channel 1, radially on interface, disposing seal cover 7, seal cover 7 with radially between interface 6, adopt and be threaded, blind pipe 5 is welded on the middle part of seal cover 7, and the cecum of blind pipe 5 can be positioned at seal cover 7 inside, also can extend into traffic channel 1 inside through seal cover 7.Offering of interface 6 radially, convenient to the maintenance that places under repair of baffle-type flow switch.
In order to dismantle seal cover 7 convenience, on seal cover 7, be welded with nut 8, blind pipe 5 is welded on seal cover 7 through after nut 8.Nut 8 can adopt common tetragonal nut or hex nut etc.
In addition, on traffic channel 1 inwall, be provided with the collar flange parallel with the axis direction of traffic channel 19, the diameter of section at collar flange 9 places is less than the diameter of section at traffic channel 1 all the other positions, and while passing through without fluid in traffic channel 1 inside, baffle plate 2 is taken on the annular surface that is placed on collar flange 9.The setting of baffle plate 2 and collar flange 9, makes baffle-type flow switch have the function of controlling internal flow one-way flow.
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 (6)
1. baffle-type flow switch, comprise traffic channel and baffle plate, it is characterized in that, described baffle plate is connected to the top of traffic channel, and take the connecting portion of baffle plate and traffic channel and be that axle rotates, while passing through without fluid in traffic channel inside, baffle plate is positioned at the position vertical with traffic channel axis direction; Traffic channel is provided with approach switch outward, and the triggering medium as described approach switch sensing element is installed on baffle plate.
2. baffle-type flow switch according to claim 1, is characterized in that, described approach switch is passive approach switch, triggers medium and is made by magnetic or ferrous material.
3. baffle-type flow switch according to claim 1, it is characterized in that, described traffic channel top is provided with blind pipe, and the length direction of blind pipe is vertical with the axis direction of traffic channel, approach switch is positioned at blind pipe inside, and approach switch is adjustable in the degree of depth of blind pipe inside.
4. baffle-type flow switch according to claim 3, it is characterized in that, described traffic channel top is provided with radially interface, radially interface is communicated with in a tubular form and with traffic channel, radially on interface, disposing seal cover, seal cover with radially between interface, adopt and be threaded, blind pipe is welded on the middle part of seal cover.
5. baffle-type flow switch according to claim 4, is characterized in that, on described seal cover, is welded with nut, and blind pipe passes nut and is welded on seal cover.
6. baffle-type flow switch according to claim 1, it is characterized in that, described traffic channel inwall is provided with the collar flange parallel with the axis direction of traffic channel, the diameter of section at collar flange place is less than the diameter of section at all the other positions of traffic channel, while passing through without fluid in traffic channel inside, baffle plate is taken on the annular surface that is placed on collar flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420098597.3U CN203721625U (en) | 2014-03-05 | 2014-03-05 | Baffle-plate-type flow switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420098597.3U CN203721625U (en) | 2014-03-05 | 2014-03-05 | Baffle-plate-type flow switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203721625U true CN203721625U (en) | 2014-07-16 |
Family
ID=51160762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420098597.3U Expired - Fee Related CN203721625U (en) | 2014-03-05 | 2014-03-05 | Baffle-plate-type flow switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203721625U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555710A (en) * | 2018-12-19 | 2019-04-02 | 佛山市卡来卫浴有限公司 | A kind of heat pump |
-
2014
- 2014-03-05 CN CN201420098597.3U patent/CN203721625U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555710A (en) * | 2018-12-19 | 2019-04-02 | 佛山市卡来卫浴有限公司 | A kind of heat pump |
| CN109555710B (en) * | 2018-12-19 | 2023-10-31 | 佛山市卡来卫浴有限公司 | Heating pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20170305 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |