CN2872335Y - Pressure-differential sensor - Google Patents

Pressure-differential sensor Download PDF

Info

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
Application number
CN 200520134396
Other languages
Chinese (zh)
Inventor
叶增锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Weil-lih Robot Technology Co., Ltd.
Original Assignee
Ningbo Wei Li Pml Precision Mechanism Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ningbo Wei Li Pml Precision Mechanism Ltd filed Critical Ningbo Wei Li Pml Precision Mechanism Ltd
Priority to CN 200520134396 priority Critical patent/CN2872335Y/en
Application granted granted Critical
Publication of CN2872335Y publication Critical patent/CN2872335Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • 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

A kind of differential air pressure checking device
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.
CN 200520134396 2005-12-29 2005-12-29 Pressure-differential sensor Expired - Fee Related CN2872335Y (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
CN206407616U (en) A kind of Pneumatic vacuum sucker with signal Trigger Function
CN2872335Y (en) Pressure-differential sensor
CN109443742B (en) Detection device on turbocharger actuator assembly line
CN207007634U (en) Switch key life testing machine
CN201221351Y (en) Pipe rod external diameter detection device
CN201013549Y (en) Metering pump
CN201401551Y (en) Air valve opening indication and stroke control device
CN203009266U (en) Assembly and detection device for piston-type electronic vacuum pump
CN2651735Y (en) Multipurpose pressure checker for tyre and cylinder stator
CN103089602B (en) Assembly detection device of piston type electric vacuum pump
CN208653790U (en) A kind of new-type upper water negative-pressure detection device
CN2630822Y (en) Pressure detecting indicator
CN209244745U (en) Slider locking pump
CN211626912U (en) Valve element performance detection device for valve production
CN217765038U (en) Floating guide-in mechanism for instrument pressure pointer
CN201247187Y (en) Manual resistance-sucking instrument
CN208883408U (en) For drying the lifting device of tank volume detection
CN204384802U (en) Multi-functional jack device
CN215178456U (en) Air inlet manifold airtightness detection tool
CN2842383Y (en) IC-card built-in ball-valve gas meter head
CN2539164Y (en) Pressure sensing alarm
CN2670709Y (en) Regulatable pressure stabilizing valves
CN209764340U (en) Novel portable pressure reducing valve pressure gauge calibrating device
CN218724956U (en) Portable test micropore sintering large plate backpressure test pen fast
CN207881952U (en) Buckle product probe-type Sensitive Detector

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