CN2872335Y - Pressure-differential sensor - Google Patents
Pressure-differential sensor Download PDFInfo
- Publication number
- CN2872335Y CN2872335Y CN 200520134396 CN200520134396U CN2872335Y CN 2872335 Y CN2872335 Y CN 2872335Y CN 200520134396 CN200520134396 CN 200520134396 CN 200520134396 U CN200520134396 U CN 200520134396U CN 2872335 Y CN2872335 Y CN 2872335Y
- Authority
- CN
- China
- Prior art keywords
- piston
- housing
- checking device
- intake opening
- air intake
- 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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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a pressure-difference gas pressure gauge, which comprises a housing inside which a cylinder body, a piston and a piston spring are disposed. A gas inlet communicating with a working surface is disposed on the housing, and a gas outlet communicating with said gas inlet is disposed on the housing. A microswitch is fitted inside the housing and connected with said piston by a control mechanism. The utility model has advantages of high measurement accuracy and long service life.
Description
Technical field
The utility model relates to a kind of checking device, particularly a kind of differential air pressure checking device that is used for mechanical arm.
Background technology
At present, the checking device that is used for mechanical arm on the market has induction, promptly detects piston displacement by magnetic switch.Its defective is: when the mechanical arm holding articles varied in size, piston displacement was becoming, and needs corresponding adjustment inductive switch; Because of the inductive switch different periodic replacement inductive switches that need in serviceable life.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of prior art and a kind of differential air pressure checking device that is used for mechanical arm is provided, and it has the precision of detecting height, the characteristics of long service life.
The utility model solves the problems of the technologies described above the technical scheme that is adopted:
A kind of differential air pressure checking device, comprise housing, in housing, be provided with cylinder body, piston and piston spring, it is characterized in that: have an air intake opening to communicate on the described housing with the workplace of piston, also have an exhausr port to communicate on the described housing with described air intake opening, also have microswitch in described housing, described piston is connected with microswitch push-button by control gear.
For optimizing technique scheme, the measure that the utility model is taked also comprises:
Described piston is connected with microswitch push-button by a spring pin;
On the described piston oil sealing is arranged;
Described air intake opening and exhausr port are positioned at the same end of housing, exhausr port and air intake opening positioned vertical;
When working pressure range was 0.35～0.8kg, the pretightning force of described piston spring was 2.227kg.
Because the utility model has been taked above-mentioned technical measures, it compared with prior art has the precision of detecting height, advantages such as long service life.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
With reference to Fig. 1, the utility model comprises housing 9, is provided with cylinder body 6, piston 7 and piston spring 2 in housing 9, and oil sealing 5 is arranged on the piston 7.Have an air intake opening 11 to communicate with the workplace of piston 7 on the housing 9, also have an exhausr port 10 to communicate with described air intake opening 11 on the housing 9, air intake opening 11 and exhausr port 10 are positioned at the same end of housing 9, exhausr port 10 and air intake opening 11 orthogonal arrangements.Also have microswitch 3 in described housing 9, piston 7 is by a spring pin 4 control microswitches 3.Have on the microswitch 3 to settle and detect dust cap 8.One end of housing 9 has capping 1.In working pressure 0.35～0.8kg scope, checking device housing 9 inner carriers 7 are subjected to piston spring 2 pretightning force F downward: F=strength force coefficient J* compression height h=0.131kg/mm*17mm=2.227kg.The thrust F ' that gas makes progress to piston 7: F '=working pressure * piston cross-section amasss S.When at working pressure 0.35kg/cm
2～0.8kg/cm
2The time, F '=2.227～5.088kg/cm
2When passing through the pilot-gas flow from air intake opening 11 air inlets, from exhausr port 10 exhausts, the pressure reduction of intake and exhaust this moment, promptly working pressure＜0.35kg makes F '＜F, and button → no signal that piston 7 upper spring pins 4 can not upwards promote microswitch 3 exports I/O to; When air intake opening 11 air inlets, exhausr port 10 not exhausts, the pressure reduction of intake and exhaust this moment, promptly working pressure reaches work pressure scope, makes F '＞F, and piston 7 upper spring pins 4 promotion microswitches → have signal to export I/O to reach the purpose of the manual work of control machinery with this.
Claims (5)
1, a kind of differential air pressure checking device, comprise housing (9), in housing (9), be provided with cylinder body (6), piston (7) and piston spring (2), it is characterized in that: have an air intake opening (11) to communicate on the described housing (9) with the workplace of piston (7), described housing (9) is gone up also has an exhausr port (10) to communicate with described air intake opening (11), also have microswitch (3) in described housing (9), described piston (7) is connected with microswitch (3) button by control gear.
2, differential air pressure checking device according to claim 1 is characterized in that: described piston (7) is connected with microswitch (3) button by a spring pin (4).
3, differential air pressure checking device according to claim 1 is characterized in that: oil sealing (5) is arranged on the described piston (7).
4, differential air pressure checking device according to claim 1 is characterized in that: described air intake opening (11) and exhausr port (10) are positioned at the same end of housing (9), exhausr port (10) and the orthogonal arrangement of air intake opening (11).
5, differential air pressure checking device according to claim 1 is characterized in that: when working pressure range was 0.35～0.8kg, the pretightning force of described piston spring (2) was 2.227kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520134396 CN2872335Y (en) | 2005-12-29 | 2005-12-29 | Pressure-differential sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520134396 CN2872335Y (en) | 2005-12-29 | 2005-12-29 | Pressure-differential sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2872335Y true CN2872335Y (en) | 2007-02-21 |
Family
ID=37740684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520134396 Expired - Fee Related CN2872335Y (en) | 2005-12-29 | 2005-12-29 | Pressure-differential sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2872335Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323004A (en) * | 2011-06-01 | 2012-01-18 | 合肥望远电子科技有限公司 | A kind of switching value differential pressure pick-up |
| CN106855444A (en) * | 2016-12-02 | 2017-06-16 | 武汉航空仪表有限责任公司 | A kind of low pressure signalling means |
-
2005
- 2005-12-29 CN CN 200520134396 patent/CN2872335Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323004A (en) * | 2011-06-01 | 2012-01-18 | 合肥望远电子科技有限公司 | A kind of switching value differential pressure pick-up |
| CN106855444A (en) * | 2016-12-02 | 2017-06-16 | 武汉航空仪表有限责任公司 | A kind of low pressure signalling means |
| CN106855444B (en) * | 2016-12-02 | 2019-06-28 | 武汉航空仪表有限责任公司 | A kind of low pressure signalling means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NINGBO WEILI ROBOTS SCIENCE CO., LTD. Free format text: FORMER OWNER: NING BO NINGBO WELLLIH PRECISION MACHINERY CO., LTD; PATENTEE Effective date: 20081024 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081024 Address after: Zhejiang city of Yuyao province river street summer village, zip code: 315409 Patentee after: Ningbo Weil-lih Robot Technology Co., Ltd. Address before: Zhejiang city in Yuyao province Xiao Dong Xia village southwest Street by car No. 3, zip code: 315409 Co-patentee before: Ye Zengfeng Patentee before: Ningbo Wei Li Pml Precision Mechanism Ltd |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070221 Termination date: 20141229 |
|
| EXPY | Termination of patent right or utility model |