CN109065408A - Flow switch - Google Patents
Flow switch Download PDFInfo
- Publication number
- CN109065408A CN109065408A CN201810952614.8A CN201810952614A CN109065408A CN 109065408 A CN109065408 A CN 109065408A CN 201810952614 A CN201810952614 A CN 201810952614A CN 109065408 A CN109065408 A CN 109065408A
- Authority
- CN
- China
- Prior art keywords
- main body
- spool
- push rod
- end cap
- flow
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/26—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/26—Details
- H01H35/2607—Means for adjustment of "ON" or "OFF" operating pressure
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention discloses a kind of flow switches, it includes spool, Switch main body, left spring seat etc., spool is connect with Switch main body and spool is located at the inside of Switch main body, left spring seat is located at the inside of Switch main body and is located at the left of spool, the both ends of left reset spring respectively with left adjustment ring, the connection of left spring seat, left adjustment ring is fixed with left end cap, left end cap, right end cap is connect with the left and right ends of Switch main body respectively, left push rod sequentially passes through left end cap, left reset spring, it is connect after left spring seat with the left end of spool, left microswitch is located at the left of left push rod, right microswitch is located at the right etc. of right push rod.The present invention has rational design, structure is simple, it is easy to use, enrich the function of flow switch, avoid influence of the external magnetic field to flow detection, realizing two-way detection fluid motion and can distinguish the function of fluid flow direction and adjustable minimum detection flow, can reduce the production cost of relevant device, enormously simplify the design of related system.
Description
Technical field
The present invention relates to flow element technical fields, more particularly to a kind of flow switch.
Background technique
As shown in figure 3, existing common desktop drilling machine includes ontology 21, switch valve core 22, magnet steel 23, dry-reed tube component
24, reset spring 25, spring base 26, magnet steel is fixed in switch valve core, and ontology is equipped with first-class road junction A, second road junction B,
When flowing between first-class road junction A and second road junction B without fluid, switch valve core is under the action of reset spring, switch valve core quilt
It is close on the body, magnet steel is located at left position, and dry-reed tube component is exported without flow signal；As shown in figure 4, working as first-class road junction
When having fluid flowing between A and second road junction B, and be more than minimum detection flow when, under the action of fluid media (medium) power, push valve
Core overcomes reset spring spring force to move right, and magnet steel is moved right with valve, and changes dry-reed tube component state, tongue tube group
Part output has flow signal.Existing flow switch can detect whether stream when first-class road junction A is to second road junction B flow
Amount, second road junction B can not be flowed to first-class road junction A, and switch valve core is in closing always, can not detect direction stream
Amount；Meanwhile flow signal controls the state of dry-reed tube component by the position of magnet steel, is easy to be influenced by external magnetic field,
Existing flow switch is unable to satisfy the application for needing two-directions flow measurement and capable of judging direction of the traffic, is also unable to satisfy
It is required that the application of flow signal can not transmitted reliably by external magnetic field interference.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of flow switch, rationally, structure is simple, user for design
Just, be avoided that influence of the external magnetic field to flow detection, realization can two-way detection fluid motion, can distinguish fluid flow direction,
Adjustable minimum detection flow, can reduce the production cost of relevant device.
The present invention is to solve above-mentioned technical problem by following technical proposals: a kind of flow switch, which is characterized in that
It includes spool, Switch main body, left spring seat, right spring base, left reset spring, right reset spring, left adjustment ring, right adjustment
Ring, left end cap, right end cap, left push rod, right push rod, left microswitch, right microswitch, spool is connect with Switch main body and spool
Positioned at the inside of Switch main body, left spring seat is located at the inside of Switch main body and is located at the left of spool, and right spring base, which is located at, to be opened
It closes the inside of ontology and is located at the right of spool, left reset spring, right reset spring, left adjustment ring, right adjustment ring are respectively positioned on out
The inside of ontology is closed, the both ends of left reset spring are connect with left adjustment ring, left spring seat respectively, the both ends difference of right reset spring
It is connect with right adjustment ring, right spring base, left adjustment ring is fixed with left end cap, and right adjustment ring is fixed with right end cap, left end cap, right end
Lid is connect with the left and right ends of Switch main body respectively, left push rod sequentially pass through after left end cap, left reset spring, left spring seat with valve
The left end of core connects, and right push rod is connect after sequentially passing through right end cap, right reset spring, right spring base with the right end of spool, Zuo Wei
Dynamic switch is located at the left of left push rod, and right microswitch is located at the right of right push rod.
Preferably, fluid channel is equipped with inside the Switch main body.
Preferably, the Switch main body is equipped with first-class road junction, second road junction.
Preferably, the spool is equipped with damping hole.
Preferably, the right end of the left push rod, the left end of right push rod are equipped with convex block.
Preferably, movement reed is equipped on the left microswitch and right microswitch.
The positive effect of the present invention is that: runner is set in use can the core assembly of bidirectional-movement, adjustable minimum
The spring reset structure of detection flows and can directly two-way detection push rod jogging switches measurement structure, avoid external magnetic field
Influence to flow detection, realizing two-way detection fluid motion and can distinguish fluid flow direction and adjustable minimum inspection
The function of measurement of discharge.Of the invention and flow switch enriches the function with flow switch, avoids external magnetic field and examines to flow
The influence of survey can simplify the design of related system, reduce the production cost of relevant device；For example, the flow switch is applied to
Hydraulic motor or the hydraulic system of two-way cylinder motion control, can simply realize fluid whether be more than minimum discharge flowing and
The function of flow direction detection, eliminates and is arranged by auxiliary such as pressure sensors to identify flow direction, enormously simplify phase
The design of relationship system.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of inventive flow switch.
Fig. 2 is the working state schematic representation of inventive flow switch.
Fig. 3 is the structural schematic diagram of existing flow switch.
Fig. 4 is the working state schematic representation of existing flow switch.
Specific embodiment
Present pre-ferred embodiments are provided with reference to the accompanying drawing, in order to explain the technical scheme of the invention in detail.
As shown in Figure 1 to Figure 2, inventive flow switch include spool 1, Switch main body 2, left spring seat 3, right spring base 4,
Left reset spring 5, right reset spring 6, left adjustment ring 7, right adjustment ring 8, left end cap 9, right end cap 10, left push rod 11, right push rod
12, left microswitch 13, right microswitch 14, spool 1 is connect with Switch main body 2 and spool 1 is located at the inside of Switch main body 2,
Left spring seat 3 be located at the inside of Switch main body 2 and be located at spool 1 left, right spring base 4 be located at the inside of Switch main body 2 and
Positioned at the right of spool 1, left reset spring 5, right reset spring 6, left adjustment ring 7, right adjustment ring 8 are respectively positioned on Switch main body 2
Inside, the both ends of left reset spring 5 are connect with left adjustment ring 7, left spring seat 3 respectively, the both ends of right reset spring 6 respectively with the right side
Adjustment ring 8, right spring base 4 connect, and left adjustment ring 7 and left end cap 9 are fixed, and right adjustment ring 8 and right end cap 10 are fixed, left end cap 9,
Right end cap 10 is connect with the left and right ends of Switch main body 2 respectively, and left push rod 11 sequentially passes through left end cap 9, left reset spring 5, a left side
Connect after spring base 3 with the left end of spool 1, right push rod 12 sequentially pass through after right end cap 10, right reset spring 6, right spring base 4 with
The right end of spool 1 connects, and left microswitch 13 is located at the left of left push rod 11, and right microswitch 14 is located at the right side of right push rod 12
Side.
It is equipped with fluid channel inside Switch main body 2, fluid is facilitated to flow in flow switch.
Switch main body 2 is equipped with first-class road junction 100, second road junction 200, facilitates fluid flowing into flow switch
With outflow.
Spool 1, which is equipped with damping hole 300, can generate pressure difference when the fluid is flowing before and after damping hole 300, be conducive to control
The minimum detection flow of flow switch both direction, reduces the cost simultaneously.
The right end of left push rod 11, the left end of right push rod 12 are equipped with convex block, increase the connection area of itself and spool 1, mention
High structural and stability.
Be equipped with movement reed on left microswitch 13 and right microswitch 14, facilitate left push rod 11, right push rod 12 and its
Contact, externally sends out flow signal.
Working principle of the present invention is as follows: flow switch design is reasonable, and structure is simple, easy to use, left push rod, right push rod
It is fixedly connected with spool, forms core assembly, it is interior to be equipped with fluid channel；Left end cap, left adjustment ring, left reset spring, left spring
Seat forms left resetting-mechanism, and right spring base, right reset spring, right adjustment ring, right end cap form right resetting-mechanism, for realizing nothing
Fluid flows or less than the reset function for setting fluid flow state lower valve core assembly；Meanwhile passing through control left and right adjustment ring
Thickness adjusts the spring force of left and right reset spring, controls the minimum detection of the flow switch both direction respectively together with damping hole
The minimum detection flow of flow, i.e., first-class road junction to second road junction and second road junction to first-class road junction both direction can
Individually set.Left microswitch, left push rod and right push rod, right microswitch separately constitute left and right fluid flow signal
It is sent out mechanism, whether have fluid flowing beyond setting minimum discharge, and can detect fluid flow direction if can detect that,
With existing compared with flow switch, using it is interior set runner can the core assembly of bidirectional-movement, adjustable minimum detection flow bullet
Spring resetting structure and can directly two-way detection push rod jogging switches measurement structure, avoid external magnetic field to flow detection
It influences, realizing two-way detection fluid motion and can distinguish the function of fluid flow direction and adjustable minimum detection flow
Energy.Flow switch in use, when fluid from first-class road junction to second road junction flow and be more than minimum detection flow when, medium
Pushing movable valve plug overcomes right reset spring spring force to move right, until the channel between spool and Switch main body is opened and medium power
Until the restriction site for rebalancing or moving to right end cap with reset spring spring force, spool drives left push rod, right push rod one
It rises and moves right, right push rod touches right microswitch, and right microswitch externally sends out fluid from first-class road junction to second
The flow signal of road junction flowing；Conversely, when fluid is flowed from second road junction to first-class road junction and is more than minimum detection flow
When, left microswitch externally sends out the flow signal that fluid is flowed from second road junction to first-class road junction, other work are former
It manages consistent with prior art working principle.The design of flow switch enriches the function of flow switch, avoids external magnetic field pair
The influence of flow detection can simplify the design of related system, reduce the production cost of relevant device, which is applied to
Hydraulic motor or the hydraulic system of two-way cylinder motion control, can simply realize fluid whether be more than minimum discharge flowing and
The function of flow direction detection, eliminates and is arranged by auxiliary such as pressure sensors to identify flow direction, enormously simplify phase
The design of relationship system.
In conclusion inventive flow switch designs are reasonable, structure is simple, easy to use, enriches the function of flow switch
Can, influence of the external magnetic field to flow detection is avoided, realizing two-way detection fluid motion and can distinguish fluid flowing side
To and adjustable minimum detection flow function, the production cost of relevant device can be reduced, enormously simplify related system
Design.
Particular embodiments described above, the technical issues of to solution of the invention, technical scheme and beneficial effects carry out
It is further described, it should be understood that the above is only a specific embodiment of the present invention, is not limited to
The present invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this
Within the protection scope of invention.
Claims (6)
1. a kind of flow switch, which is characterized in that it includes spool, Switch main body, left spring seat, right spring base, left reset bullet
Spring, right reset spring, left adjustment ring, right adjustment ring, left end cap, right end cap, left push rod, right push rod, left microswitch, right fine motion
Switch, spool is connect with Switch main body and spool is located at the inside of Switch main body, left spring seat be located at the inside of Switch main body and
Positioned at the left of spool, right spring base is located at the inside of Switch main body and is located at the right of spool, left reset spring, right reset bullet
Spring, left adjustment ring, right adjustment ring are respectively positioned on the inside of Switch main body, the both ends of left reset spring respectively with left adjustment ring, left bullet
Spring abutment connection, the both ends of right reset spring are connect with right adjustment ring, right spring base respectively, and left adjustment ring is fixed with left end cap, right
Adjustment ring is fixed with right end cap, and left end cap, right end cap are connect with the left and right ends of Switch main body respectively, and left push rod sequentially passes through a left side
It is connect after end cap, left reset spring, left spring seat with the left end of spool, right push rod sequentially passes through right end cap, right reset spring, the right side
It is connect after spring base with the right end of spool, left microswitch is located at the left of left push rod, and right microswitch is located at the right side of right push rod
Side.
2. flow switch as described in claim 1, which is characterized in that be equipped with fluid channel inside the Switch main body.
3. flow switch as described in claim 1, which is characterized in that the Switch main body is equipped with first-class road junction, second
Runner mouth.
4. flow switch as described in claim 1, which is characterized in that the spool is equipped with damping hole.
5. flow switch as described in claim 1, which is characterized in that the right end of the left push rod, the left end of right push rod are all provided with
There is convex block.
6. flow switch as described in claim 1, which is characterized in that be equipped on the left microswitch and right microswitch
Act reed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810952614.8A CN109065408A (en) | 2018-08-21 | 2018-08-21 | Flow switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810952614.8A CN109065408A (en) | 2018-08-21 | 2018-08-21 | Flow switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109065408A true CN109065408A (en) | 2018-12-21 |
Family
ID=64686539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810952614.8A Pending CN109065408A (en) | 2018-08-21 | 2018-08-21 | Flow switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109065408A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114111922A (en) * | 2021-11-22 | 2022-03-01 | 黑龙江农业工程职业学院 | Micro-flow detector and detection method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1421511A (en) * | 1973-03-16 | 1976-01-21 | Amf Inc | Magnetically operable hydraulic switch means |
| US4366718A (en) * | 1981-01-26 | 1983-01-04 | Deere & Company | Bi-directional flow transducer |
| US5458007A (en) * | 1994-07-22 | 1995-10-17 | Lake Monitors, Inc. | Bi-directional flow indicator |
| CN201884366U (en) * | 2010-11-15 | 2011-06-29 | 上海融德机电工程设备有限公司 | Flow detecting device for hydraulic system |
| CN105422770A (en) * | 2015-11-13 | 2016-03-23 | 兰州飞行控制有限责任公司 | Accurate limiting device for lead screw pair |
| CN105757032A (en) * | 2015-12-15 | 2016-07-13 | 重庆川仪自动化股份有限公司 | Flow rate pairing valve and electrohydraulic actuating mechanism adopting same |
-
2018
- 2018-08-21 CN CN201810952614.8A patent/CN109065408A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1421511A (en) * | 1973-03-16 | 1976-01-21 | Amf Inc | Magnetically operable hydraulic switch means |
| US4366718A (en) * | 1981-01-26 | 1983-01-04 | Deere & Company | Bi-directional flow transducer |
| US5458007A (en) * | 1994-07-22 | 1995-10-17 | Lake Monitors, Inc. | Bi-directional flow indicator |
| CN201884366U (en) * | 2010-11-15 | 2011-06-29 | 上海融德机电工程设备有限公司 | Flow detecting device for hydraulic system |
| CN105422770A (en) * | 2015-11-13 | 2016-03-23 | 兰州飞行控制有限责任公司 | Accurate limiting device for lead screw pair |
| CN105757032A (en) * | 2015-12-15 | 2016-07-13 | 重庆川仪自动化股份有限公司 | Flow rate pairing valve and electrohydraulic actuating mechanism adopting same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114111922A (en) * | 2021-11-22 | 2022-03-01 | 黑龙江农业工程职业学院 | Micro-flow detector and detection method |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181221 |