CN2473588Y - Test sensor for jack travel distance position - Google Patents
Test sensor for jack travel distance position Download PDFInfo
- 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
Links
Landscapes
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
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
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).
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)
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 |
-
2001
- 2001-04-05 CN CN 01221015 patent/CN2473588Y/en not_active Expired - Fee Related
Cited By (4)
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
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 |