CN111048354B - Delay adjustable pressure switch - Google Patents
Delay adjustable pressure switch Download PDFInfo
- Publication number
- CN111048354B CN111048354B CN201911246454.6A CN201911246454A CN111048354B CN 111048354 B CN111048354 B CN 111048354B CN 201911246454 A CN201911246454 A CN 201911246454A CN 111048354 B CN111048354 B CN 111048354B
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- Prior art keywords
- module
- pressure switch
- pressure
- fixed
- rod
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- 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
-
- 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
- H01H35/32—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by bellows
-
- 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
- H01H35/34—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
Abstract
The invention belongs to the technical field of pressure instruments and meters, and relates to a hysteresis-adjustable pressure switch. The pressure measuring device comprises a pressure measuring nozzle (1), a sensitive component (2), a movable rod (3), a pulley (4), an adjusting block (5), a fixed pin (6), an amplifying rod (7), an on-off module (8) and a reset spring (11). The pressure switch is of a pure mechanical structure and has strong anti-interference performance. The on-off module (8) is fixed at different positions and used for monitoring a plurality of different pressure points and outputting a plurality of paths of independent switch signals, and is simple and reliable. The amplifying rod (7) is fixed at different positions in the waist-shaped groove of the adjusting block (5) and can realize different amplification ratio outputs, so that the hysteresis performance of a switch in the on-off module (8) is adjusted, switch signals with different hysteresis requirements are output, and the debugging is simple.
Description
Technical Field
The invention belongs to the technical field of pressure instruments and meters, and relates to a hysteresis-adjustable pressure switch.
Background
The pressure switch is used as a pressure measuring instrument for monitoring the system pressure and outputting a switch signal, and is widely applied to a hydraulic pneumatic system for automatic monitoring. The existing pressure switch with hysteresis performance has single function and non-adjustable hysteresis, but with the requirements of function integration and system complexity, pressure values of different key pressure points need to be monitored when the system pressure rises and falls, so that the pressure switch with adjustable hysteresis requirement becomes a new requirement.
Disclosure of Invention
The purpose of the invention is: the mechanical pressure switch is simple in structure, convenient to debug, reliable in output and adjustable in delay.
The technical scheme of the invention is as follows: a lag adjustable pressure switch comprises a pressure measuring nozzle 1, a sensitive component 2, a movable rod 3, a pulley 4, an adjusting block 5, a fixed pin 6, an amplifying rod 7, an on-off module 8 and a reset spring 11;
the pressure measuring nozzle 1 is fixedly connected with the sensitive component 2; the sensitive component 2 senses the system pressure and outputs a displacement signal to push the movable rod 3 to move up and down; the pulley 4 is fixed at the end part of the movable rod 3 and is contacted with the amplifying rod 7; the adjusting block 5 is fixed on the supporting surface; the amplifying rod 7 is fixed in a waist-shaped groove of the adjusting block 5 through a fixing pin 6 and can rotate around the fixing pin 6; the on-off module 8 is fixed on the supporting surface, and when the amplifying rod 7 rotates, all switches of the on-off module 8 are pushed in sequence; the reset spring 11 acts on the amplifying rod 7 and the supporting surface to ensure that the amplifying rod 7 is in tight contact with the pulley 4.
The pressure switch is of a pure mechanical structure.
The on-off module 8 is a series of independent switches.
The independent switches are microswitches, and the reverse trigger point of each microswitch lags behind the forward trigger point of each microswitch.
The multi-channel switch signal generated by the on-off module 8 is output through a cable 10.
The pulley 4 and the on-off module 8 act on different positions of the amplifying rod 7 at the same time, and displacement amplification or reduction can be realized when the amplifying rod 7 rotates.
The pressure switch fixes the amplifying rod 7 at different positions in the waist-shaped groove of the adjusting block 5 by adjusting the fixing pin 6.
The sensitive component 2 is a diaphragm component, a C-shaped capped tube component or a corrugated cylinder.
The invention has the advantages and beneficial effects that: the pressure switch is of a pure mechanical structure and has strong anti-interference performance. The switch of the on-off module is fixed at different positions and used for monitoring a plurality of different pressure points and outputting a plurality of paths of independent switch signals, so that the device is simple and reliable. The amplifying rod is fixed at different positions in the waist-shaped groove of the adjusting block, and output of different amplification ratios can be realized, so that the hysteresis performance of the switch is adjusted, switch signals with different hysteresis requirements are output, and debugging is simple.
Drawings
FIG. 1 is a schematic structural view of the present invention;
wherein 1: a pressure measuring nozzle; 2: a sensitive component; 3: a movable rod; 4: a pulley; 5: an adjusting block; 6: a fixing pin; 7: enlarging the rod; 8: a microswitch module; 9: a screw; 10: a cable; 11: a return spring.
Detailed Description
The present invention is described in further detail below.
As shown in fig. 1, the hysteresis-adjustable pressure switch of the present invention includes a pressure measuring nozzle 1, a sensitive component 2, a movable rod 3, a pulley 4, an adjusting block 5, a fixing pin 6, an amplifying rod 7, an on-off module 8, a screw 9, a cable 10, and a return spring 11.
The pressure measuring nozzle 1 is connected with a system through a mechanical threaded interface, the pressure measuring nozzle 1 is fixedly connected with the sensitive component 2 through vacuum electron beam welding, a formed inner cavity is a pressure measuring cavity, pressure media such as gas or liquid of the system enter the pressure measuring cavity from the pressure measuring nozzle 1, the sensitive component 2 is a diaphragm component, and deformation is generated and a displacement signal is output after the pressure media are sensed to push the movable rod 3 to move upwards.
The pulley 4 is fixed to the end of the movable rod 3 and contacts the amplification rod 7.
The adjusting block 5 is fixed on the supporting surface, and a waist-shaped groove is formed in the adjusting block 5.
The on-off module 8 is a series of independent micro switches, and is fixed on different positions of the supporting surface through screws 9, and the reverse trigger point of each micro switch lags behind the forward trigger point of each micro switch, so that switch signals with lagging performance are output.
The amplifying rod 7 is fixed in the waist-shaped groove of the adjusting block 5 through a fixing pin 6 and can rotate around the fixing pin 6. When the movable rod 3 moves upwards, the amplifying rod 7 is pushed to rotate around the fixing pin 6, so that each micro switch of the on-off module 8 is sequentially pushed, and multiple independent switch signals are output through the cable 10.
The amplifying rod 7 is fixed at different positions in the kidney-shaped groove of the adjusting block 5 by adjusting the fixing pin 6, so that different amplifying ratios can be output, the delay performance of the on-off module 8 can be adjusted, and multi-way switch signals with different delay requirements can be output.
The return spring 11 acts on the end of the amplification rod 7, and the other end is connected with the supporting surface and is in a stretching state, so that the amplification rod 7 is in tight contact with the pulley 4.
In addition, when the sensitive component 2 in the pressure switch is replaced by a pressure sensitive component such as a C-shaped capped tube component or a corrugated cylinder, the output of multipath independent switch signals with adjustable hysteresis can be realized.
Claims (7)
1. A hysteresis-adjustable pressure switch is characterized by comprising a pressure measuring nozzle (1), a sensitive component (2), a movable rod (3), a pulley (4), an adjusting block (5), a fixed pin (6), an amplifying rod (7), an on-off module (8) and a reset spring (11);
the pressure measuring nozzle (1) is fixedly connected with the sensitive component (2); the sensitive component (2) senses the system pressure and outputs a displacement signal to push the movable rod (3) to move upwards; the pulley (4) is fixed at the end part of the movable rod (3) and is contacted with the amplifying rod (7); the adjusting block (5) is fixed on the supporting surface; the amplifying rod (7) is fixed in a waist-shaped groove of the adjusting block (5) through a fixing pin (6) and can rotate around the fixing pin (6); the amplifying rod (7) can be fixed at different positions in the waist-shaped groove of the adjusting block (5) by adjusting the fixing pin (6); the on-off module (8) is fixed on the supporting surface, and when the amplifying rod (7) rotates, the switches of the on-off module (8) are sequentially pushed; the reset spring (11) acts on the amplifying rod (7) and the supporting surface to ensure that the amplifying rod (7) is in tight contact with the pulley (4).
2. The adjustable hysteresis pressure switch of claim 1, wherein the pressure switch is of a purely mechanical construction.
3. Pressure switch with adjustable hysteresis, according to claim 1, characterized in that the on-off module (8) is a series of individual switches.
4. The adjustable hysteresis pressure switch of claim 3, wherein the individual switches are microswitches, and wherein the trigger point of each microswitch in the reverse direction lags behind its trigger point in the forward direction.
5. The pressure switch with adjustable hysteresis of claim 1, wherein the multi-way switch signal generated by the on-off module (8) is output through a cable (10).
6. Pressure switch with adjustable hysteresis, according to claim 1, characterized in that the pulley (4) and the on-off module (8) act simultaneously on different positions of the amplification lever (7), and the amplification lever (7) can be displaced to be enlarged or reduced when it rotates.
7. The adjustable hysteresis pressure switch of claim 1, wherein the sensing element (2) is a diaphragm element, a C-shaped capped tube element or a bellows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911246454.6A CN111048354B (en) | 2019-12-06 | 2019-12-06 | Delay adjustable pressure switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911246454.6A CN111048354B (en) | 2019-12-06 | 2019-12-06 | Delay adjustable pressure switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111048354A CN111048354A (en) | 2020-04-21 |
| CN111048354B true CN111048354B (en) | 2022-03-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911246454.6A Active CN111048354B (en) | 2019-12-06 | 2019-12-06 | Delay adjustable pressure switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111048354B (en) |
Citations (15)
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|---|---|---|---|---|
| GB762363A (en) * | 1953-06-23 | 1956-11-28 | Trist & Co Ltd Ronald | Improvements in control mechanism for electric switches |
| JPS5126621B1 (en) * | 1971-07-03 | 1976-08-07 | ||
| JPS56124938U (en) * | 1980-02-23 | 1981-09-22 | ||
| CN2651925Y (en) * | 2003-09-11 | 2004-10-27 | 屈小秒 | Water pressure controlled switch |
| JP2006077822A (en) * | 2004-09-07 | 2006-03-23 | Saginomiya Seisakusho Inc | Pressure-operated valve with switching function |
| CN201038058Y (en) * | 2007-04-12 | 2008-03-19 | 蔡永治 | Pressure switch possessing retarding action function |
| CN203534754U (en) * | 2013-10-25 | 2014-04-09 | 江西晨明实业有限公司 | Miniature low-pressure gauge |
| CN203745922U (en) * | 2014-01-17 | 2014-07-30 | 北京鲁珂福尔机电设备有限公司 | Pressure controller possessing on-site alarm function |
| CN104134575A (en) * | 2013-04-30 | 2014-11-05 | 基德科技公司 | Pneumatic pressure switch |
| CN105590791A (en) * | 2014-11-07 | 2016-05-18 | 株式会社鹭宫制作所 | Swaging structure |
| CN106876215A (en) * | 2015-12-14 | 2017-06-20 | 宁波市镇海伟辰机械制造有限公司 | Pressure adjustable type pressure switch |
| CN108039302A (en) * | 2017-11-08 | 2018-05-15 | 武汉航空仪表有限责任公司 | A kind of small low-voltage pressure switch |
| CN207395949U (en) * | 2017-11-06 | 2018-05-22 | 武汉航空仪表有限责任公司 | A kind of air gauge containing charging valve |
| CN207529874U (en) * | 2017-06-15 | 2018-06-22 | 镇江宏联电工有限公司 | Integrated blade inserting closing pressure controller |
| CN209513130U (en) * | 2018-12-11 | 2019-10-18 | 武汉航空仪表有限责任公司 | A kind of air gauge containing pressure switch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208834927U (en) * | 2018-11-23 | 2019-05-07 | 山西万科医用设备有限公司 | Microswitch manipulation device |
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2019
- 2019-12-06 CN CN201911246454.6A patent/CN111048354B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB762363A (en) * | 1953-06-23 | 1956-11-28 | Trist & Co Ltd Ronald | Improvements in control mechanism for electric switches |
| JPS5126621B1 (en) * | 1971-07-03 | 1976-08-07 | ||
| JPS56124938U (en) * | 1980-02-23 | 1981-09-22 | ||
| CN2651925Y (en) * | 2003-09-11 | 2004-10-27 | 屈小秒 | Water pressure controlled switch |
| JP2006077822A (en) * | 2004-09-07 | 2006-03-23 | Saginomiya Seisakusho Inc | Pressure-operated valve with switching function |
| CN201038058Y (en) * | 2007-04-12 | 2008-03-19 | 蔡永治 | Pressure switch possessing retarding action function |
| CN104134575A (en) * | 2013-04-30 | 2014-11-05 | 基德科技公司 | Pneumatic pressure switch |
| CN203534754U (en) * | 2013-10-25 | 2014-04-09 | 江西晨明实业有限公司 | Miniature low-pressure gauge |
| CN203745922U (en) * | 2014-01-17 | 2014-07-30 | 北京鲁珂福尔机电设备有限公司 | Pressure controller possessing on-site alarm function |
| CN105590791A (en) * | 2014-11-07 | 2016-05-18 | 株式会社鹭宫制作所 | Swaging structure |
| CN106876215A (en) * | 2015-12-14 | 2017-06-20 | 宁波市镇海伟辰机械制造有限公司 | Pressure adjustable type pressure switch |
| CN207529874U (en) * | 2017-06-15 | 2018-06-22 | 镇江宏联电工有限公司 | Integrated blade inserting closing pressure controller |
| CN207395949U (en) * | 2017-11-06 | 2018-05-22 | 武汉航空仪表有限责任公司 | A kind of air gauge containing charging valve |
| CN108039302A (en) * | 2017-11-08 | 2018-05-15 | 武汉航空仪表有限责任公司 | A kind of small low-voltage pressure switch |
| CN209513130U (en) * | 2018-12-11 | 2019-10-18 | 武汉航空仪表有限责任公司 | A kind of air gauge containing pressure switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111048354A (en) | 2020-04-21 |
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