CN2473588Y - Test sensor for jack travel distance position - Google Patents

Test sensor for jack travel distance position Download PDF

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Publication number
CN2473588Y
CN2473588Y CN 01221015 CN01221015U CN2473588Y CN 2473588 Y CN2473588 Y CN 2473588Y CN 01221015 CN01221015 CN 01221015 CN 01221015 U CN01221015 U CN 01221015U CN 2473588 Y CN2473588 Y CN 2473588Y
Authority
CN
China
Prior art keywords
urceolus
external cylinder
microswitch
annulus
detecting sensor
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 01221015
Other languages
Chinese (zh)
Inventor
秦立方
周痒天
甘秋萍
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.)
LIUZHOU BUILDING MACHINERY GENERAL FACTORY
Original Assignee
LIUZHOU BUILDING MACHINERY GENERAL FACTORY
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 LIUZHOU BUILDING MACHINERY GENERAL FACTORY filed Critical LIUZHOU BUILDING MACHINERY GENERAL FACTORY
Priority to CN 01221015 priority Critical patent/CN2473588Y/en
Application granted granted Critical
Publication of CN2473588Y publication Critical patent/CN2473588Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

Provided is a jack stroke position detecting sensor, comprising an U shape fixture block 1, a pull rod 2, a permanent magnetic support 3, a splint 5, an external cylinder 6, a plurality of micro switches 7, a sliding ring 8, an adjustment block 9, a conductor 10, a wiring terminal 11, the sliding ring 8 is a round ring 8 <2> intertwined by round bar material with the inner diameter slightly larger than the external diameter of the external cylinder 6, the round ring is fixed with a connecting plate 8 <1>, the round ring 8 <2> is sleeved on the external cylinder 6 and connected with the pull rod 2 via the connecting plate, one end of the external cylinder 6 is provided with an U shape long groove 12, the splint 5 is provided with a transverse long groove 4. The position touch device of the sensor is provided with a short length contacted with the external cylinder, and slides smoothly, the position of the micro switch in the cylinder can be conveniently adjusted, the reliability is good.

Description

Lifting jack travel position detecting sensor
The utility model relates to a kind of sensor that detects the hydraulic jack travel position.
The applicant in the lifting jack travel position detecting sensor of application in 1999 (patent No.: ZL99210391.6) by U-shaped fixture block, pull bar, permanent magnetism bearing, clamping plate, urceolus, a n microswitch, slide cover, adjustment piece, lead, connection terminal and form, be a kind of simple in structure, lifting jack travel position detecting sensor that installation is easy to adjust.But it also has following weak point: 1, as the position toucher to slide cover big with the urceolus contact length, very easily stuck under the pull bar effect because of installation deviation and urceolus, can not slide smoothly along urceolus; 2, the strip waist hole on the urceolus exposes a side of microswitch fully, is unfavorable for anti-misty rain, dust; 3, lead by passing urceolus in the tube and connection terminal joins, when microswitch need be adjusted in the tube, be cut off lead by the circular hole on the urceolus, and is very inconvenient; 4, when certain microswitch in n the microswitch can not be touched, can not single adjustment microswitch.
The purpose of this utility model is to improve the weak point of the existing lifting jack travel position detecting sensor of the applicant, provide a kind of position toucher and urceolus contact length little, slide smoothly, adjust in the tube microswitch convenient, install a reliable lifting jack travel position detecting sensor.
For reaching above-mentioned purpose, the lifting jack travel position detecting sensor of the utility model, still by the U-shaped fixture block, pull bar, the permanent magnetism bearing, clamping plate, urceolus, n microswitch, the position toucher, adjust piece, lead, connection terminal is formed, it is characterized in that: described position toucher is for sliding ring, it is the annulus that is slightly larger than the urceolus external diameter by an internal diameter of circular bar coiled, be fixed with a plate on the annulus, annulus is enclosed within can be free to slide thereon on the urceolus and pass through this web joint and links to each other with pull bar, and urceolus one end has a U-shaped elongated slot, have horizontal elongated slot on the clamping plate.
Because encircling as sliding of position toucher is the annulus that is slightly larger than the urceolus external diameter by circular bar coiled one internal diameter, it contacts with the circular arc of urceolus to make and slides ring and can slide along urceolus smoothly under the pulling of pull bar, is difficult for taking place with urceolus stuck and influence the situation of working sensor; Have a U-shaped elongated slot on the urceolus, be beneficial to conveniently to install after lead connects connection terminal; Have horizontal elongated slot on the clamping plate, can guarantee the reliability of device along the position of the radially single adjusting microswitch of urceolus to guarantee the sliding reliable microswitch that touches of ring.
Below, the architectural feature to the lifting jack travel position detecting sensor of the utility model is described further in conjunction with the accompanying drawings and embodiments:
Fig. 1: the lifting jack travel position detecting sensor structural representation of the utility model;
Fig. 2: slide the ring structure synoptic diagram.
Embodiment:
A kind of lifting jack travel position detecting sensor, by U-shaped fixture block 1, pull bar 2, permanent magnetism bearing 3, clamping plate 5, urceolus 6,4 microswitches 7, slide ring 8, adjust piece 9, lead 10, connection terminal 11 forms a whole, 4 microswitches 7 are fixed by bolts to the clamping plate 5 middle inner chambers that place urceolus 6 that have the bar shaped elongated slot, clamping plate 5 link to each other with urceolus 6 by adjusting piece 9, have corresponding strip waist hole on the urceolus 6, each microswitch roller passes this hole and stretches out outside the tube, the permanent magnetism bearing 3 that is positioned at urceolus 6 two ends is fixed on urceolus on the oil cylinder by the magnetic mode of closing, and sliding ring 8 is the annulus 8 that are slightly larger than urceolus 6 external diameters by an internal diameter of circular bar coiled 2, annulus 8 2On be fixed with a plate 8 1, annulus 8 2Be enclosed within and be free to slide thereon on the urceolus 6 and by web joint 8 1Link to each other with pull bar 2 one ends, pull bar 2 other ends are stuck in the piston crown of main lifting jack by nut and U-shaped fixture block 1, and lead 10 is connected to the pin of each microswitch 7 respectively on the connection terminal 11.
As a kind of conversion of the utility model embodiment, the number of described microswitch is 2~16;
Another conversion as the utility model embodiment, do not open strip waist hole at urceolus 6 middle parts, and with the corresponding position of each microswitch on have the circular hole that is slightly larger than the microswitch roller, an end of urceolus 6 has and has horizontal elongated slot 4 (referring to Fig. 1, Fig. 2) on a U-shaped elongated slot 12, the clamping plate 5.

Claims (2)

1, a kind of lifting jack travel position detecting sensor, form a whole by U-shaped fixture block (1), pull bar (2), permanent magnetism bearing (3), clamping plate (5), urceolus (6), 2~16 microswitches (7), position toucher (8), adjustment piece (9), lead (10), connection terminal (11), it is characterized in that: described position toucher (8) is for sliding ring, and it is the annulus (8 that is slightly larger than urceolus (6) external diameter by an internal diameter of circular bar coiled 2), annulus (8 2) on be fixed with a plate (8 1), annulus (8 2) be enclosed within and can be free to slide thereon on the urceolus (6) and by this web joint (8 1) link to each other with pull bar (2).
2, lifting jack travel position detecting sensor as claimed in claim 1, it is characterized in that: have the circular hole that is slightly larger than the microswitch roller on described urceolus (6) and the corresponding position of each microswitch, urceolus (6) one ends have on a U-shaped elongated slot (12), the clamping plate (5) and have horizontal elongated slot (4).
CN 01221015 2001-04-05 2001-04-05 Test sensor for jack travel distance position Expired - Fee Related CN2473588Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 01221015 CN2473588Y (en) 2001-04-05 2001-04-05 Test sensor for jack travel distance position

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 01221015 CN2473588Y (en) 2001-04-05 2001-04-05 Test sensor for jack travel distance position

Publications (1)

Publication Number Publication Date
CN2473588Y true CN2473588Y (en) 2002-01-23

Family

ID=33638389

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 01221015 Expired - Fee Related CN2473588Y (en) 2001-04-05 2001-04-05 Test sensor for jack travel distance position

Country Status (1)

Country Link
CN (1) CN2473588Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101726230B (en) * 2009-11-17 2011-06-29 三一重型装备有限公司 Hydraulic bracket, and device and method for detecting supporting height thereof
CN102519350A (en) * 2011-12-27 2012-06-27 北京天地玛珂电液控制***有限公司 Stroke sensor testing apparatus
CN107023535A (en) * 2015-12-01 2017-08-08 Smc株式会社 Position-detection sensor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101726230B (en) * 2009-11-17 2011-06-29 三一重型装备有限公司 Hydraulic bracket, and device and method for detecting supporting height thereof
CN102519350A (en) * 2011-12-27 2012-06-27 北京天地玛珂电液控制***有限公司 Stroke sensor testing apparatus
CN102519350B (en) * 2011-12-27 2015-07-29 北京天地玛珂电液控制***有限公司 A kind of stroke sensor testing apparatus
CN107023535A (en) * 2015-12-01 2017-08-08 Smc株式会社 Position-detection sensor

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20020123