CN202754745U - Lifting jack - Google Patents
Lifting jack Download PDFInfo
- Publication number
- CN202754745U CN202754745U CN 201220442436 CN201220442436U CN202754745U CN 202754745 U CN202754745 U CN 202754745U CN 201220442436 CN201220442436 CN 201220442436 CN 201220442436 U CN201220442436 U CN 201220442436U CN 202754745 U CN202754745 U CN 202754745U
- Authority
- CN
- China
- Prior art keywords
- jack
- lifting jack
- displacement sensor
- sensor
- type displacement
- 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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- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The utility model relates to a lifting jack, in particular to a lifting jack with a displacement sensor. A wire drawing type displacement sensor is arranged on the lifting jack, and a wire drawing end of the wire drawing type displacement sensor is connected with an extension-type end of the lifting jack. According to the lifting jack, the soft isolation of the sensor from a top end of the lifting jack is effectively achieved by the aid of the wire drawing type structure of the sensor, interference from external factors is avoided, the displacement error caused by hard connection abrasion is eliminated, and the measurement accuracy is improved.
Description
[technical field]
The utility model relates to a kind of jack with displacement pickup.
[background technology]
At present, known stretch-draw jack all is fixed displacement sensors on oil cylinder, and sensor and jack are bolted to connection, and thisly produces displacement error after firmly being connected to jack and sensor long term wear, has reduced survey precision and accuracy.
[summary of the invention]
The utility model is intended to propose the accurate jack of a kind of measurement.
A kind of jack described in the utility model is provided with a stay-supported type displacement sensor on the jack, the backguy end of stay-supported type displacement sensor links to each other with the telescopic end of jack.
More preferably be dynamically connected by bearing rotary between the telescopic end of the backguy end of described stay-supported type displacement sensor and jack.
More preferably, described jack outside is provided with housing.
A kind of jack described in the utility model utilizes the guy structure actv. of sensor that soft isolation has been realized in the top of sensor and jack, has avoided the interference of external factor, has eliminated the displacement error that hard connection wearing and tearing bring, and has improved survey precision.
[description of drawings]
Fig. 1 is structural representation of the present utility model
Among the figure, the 1-jack; The 2-stay-supported type displacement sensor;
[specific embodiment]
A kind of jack described in the utility model, be provided with a stay-supported type displacement sensor 2 on the described jack 1, the outside of stay-supported type displacement sensor 2 is provided with housing, and the telescopic end of the backguy end of stay-supported type displacement sensor 2 and jack 1 is dynamically connected by bearing rotary.
When jack 1 stretches, the backguy end that drives stay-supported type displacement sensor 2 by bearing produces displacement, and this displacement passed to stay-supported type displacement sensor 2, stay-supported type displacement sensor 2 sends signal to control system, carries out control and management by control system.Simultaneously, when jack 1 axial rotation, backguy end and the jack 1 of stay-supported type displacement sensor 2 rotate, actv. has been eliminated the displacement error that produces owing to jack 1 axial rotation, simultaneously the utility model in stay-supported type displacement sensor 2 outer setting housing, effectively solved the problem of waterproof, protection against the tide, anticollision.
Claims (3)
1. jack, it is characterized in that: be provided with a stay-supported type displacement sensor (2) on the described jack (1), the backguy end of described stay-supported type displacement sensor (2) links to each other with the telescopic end of jack (1).
2. a kind of jack as claimed in claim 1 is characterized in that being dynamically connected by bearing rotary between the telescopic end of the backguy end of described stay-supported type displacement sensor (2) and jack (1).
3. a kind of jack as claimed in claim 1 is characterized in that described stay-supported type displacement sensor (2) outer setting has housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220442436 CN202754745U (en) | 2012-08-31 | 2012-08-31 | Lifting jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220442436 CN202754745U (en) | 2012-08-31 | 2012-08-31 | Lifting jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202754745U true CN202754745U (en) | 2013-02-27 |
Family
ID=47733939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220442436 Expired - Fee Related CN202754745U (en) | 2012-08-31 | 2012-08-31 | Lifting jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202754745U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132635A (en) * | 2014-08-14 | 2014-11-05 | 河北高达电子科技有限公司 | Bridge prestress displacement detection device |
-
2012
- 2012-08-31 CN CN 201220442436 patent/CN202754745U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132635A (en) * | 2014-08-14 | 2014-11-05 | 河北高达电子科技有限公司 | Bridge prestress displacement detection device |
| CN104132635B (en) * | 2014-08-14 | 2017-02-22 | 河北高达电子科技有限公司 | Bridge prestress displacement detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA RAILWAY CONSTRUCTION BRIDGE ENGINEERING BURE Free format text: FORMER NAME: CHINA RAILWAY 13TH BUREAU GROUP 1ST ENGINEERING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 710065 Shaanxi city of Xi'an province high tech Zone gazelle Road No. 26 West 10303 modern business center Patentee after: CHINA RAILWAY CONSTRUCTION BRIDGE ENGINEERING BUREAU GROUP 1ST ENGINEERING Co.,Ltd. Address before: 710065 Shaanxi city of Xi'an province high tech Zone gazelle Road No. 26 West 10303 modern business center Patentee before: CHINA RAILWAY 13TH BUREAU GROUP 1ST ENGINEERING Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20210831 |