CN203513171U - Large-tonnage hydraulic jack with automatic restoring and limiting functions - Google Patents
Large-tonnage hydraulic jack with automatic restoring and limiting functions Download PDFInfo
- Publication number
- CN203513171U CN203513171U CN201320578356.4U CN201320578356U CN203513171U CN 203513171 U CN203513171 U CN 203513171U CN 201320578356 U CN201320578356 U CN 201320578356U CN 203513171 U CN203513171 U CN 203513171U
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- piston rod
- cylinder body
- hydraulic jack
- face
- distributed
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Abstract
The utility model discloses a large-tonnage hydraulic jack with automatic restoring and limiting functions. The hydraulic jack comprises a cylinder body and is characterized in that a piston rod is arranged in the cylinder body in a matching mode, two mutually-corresponding limiting plates are arranged on the piston rod in a sleeved mode, the piston rod between the two limiting plates is sleeved with a spring, the outer end face of the piston rod penetrates through an end cover, installation screw holes are distributed in the end face of the extending-out end of the piston rod, two annular grooves are formed in the outer end face, corresponding to the end cover, of the cylinder body, flanges are arranged on the annular grooves in a matching mode, and locating holes and locating bosses are distributed on the flanges. The hydraulic jack is reasonable in design, convenient to install and fix and high in working efficiency, saves time and labor, has the automatic restoring and limiting functions at the same time, prolongs service life, and meets utilization requirements.
Description
Technical field
The utility model relates to a kind of jacking accessory, relate in particular to a kind of have automatically reset, the great tonnage hydraulic jack of limit function.
Background technology
Jack is widely used in the operations such as jacking in building engineering, shipbuilding, metallurgy, mining, petrochemical complex, railway construction and other industry, stretching, extrusion.Existing jack structure is simple, needs compelling force to reset in use procedure, wastes time and energy, and there is no limit function simultaneously, is easily subject to excessive forces and is difficult to reset, and affects its service life.
Utility model content
The purpose of this utility model is in order to make up the deficiency of prior art, provide a kind of have automatically reset, the great tonnage hydraulic jack of limit function.
The utility model is achieved through the following technical solutions:
Have automatically reset, the great tonnage hydraulic jack of limit function, include cylinder body, its feature exists
In: in described cylinder body, coordinate piston rod is installed, described upper cover of piston rod is equipped with two mutual corresponding positioning plates, upper cover of piston rod between described positioning plate is equipped with spring, the outer face of described piston rod is through end cap, and on the end face of external part, be distributed with installation tapped bore, the cylinder body outer face that described end cap is corresponding is provided with bipassage ring connected in star, on described annular groove, coordinates flange is installed, and is distributed with mounting-positioning holes and positioning boss on described flange.
Its principle is: by the structure design of positioning plate and spring, it has automatic spacing and reset function, met operating needs, improved service life, coordinate mounting-positioning holes on flange and the structure design of the installation tapped bore on positioning boss and piston end surface simultaneously, it installs convenient fixing, work efficiency is high, time saving and energy saving.
The utility model has the advantages that:
The utility model reasonable in design, installs convenient fixing, work efficiency is high, time saving and energy saving, has automatic spacing and reset function simultaneously, has improved service life, has met operating needs.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
The specific embodiment
Referring to accompanying drawing, a kind of have automatically reset, the great tonnage hydraulic jack of limit function, include cylinder body, it is characterized in that: in described cylinder body, coordinate piston rod is installed, described upper cover of piston rod is equipped with two mutual corresponding positioning plates, upper cover of piston rod between described positioning plate is equipped with spring, the outer face of described piston rod is through end cap, and on the end face of external part, be distributed with installation tapped bore, the cylinder body outer face that described end cap is corresponding is provided with bipassage ring connected in star, on described annular groove, coordinate flange is installed, on described flange, be distributed with mounting-positioning holes and positioning boss.
Claims (1)
1. have automatically reset, the great tonnage hydraulic jack of limit function, include cylinder body, its feature exists
In: in described cylinder body, coordinate piston rod is installed, described upper cover of piston rod is equipped with two mutual corresponding positioning plates, upper cover of piston rod between described positioning plate is equipped with spring, the outer face of described piston rod is through end cap, and on the end face of external part, be distributed with installation tapped bore, the cylinder body outer face that described end cap is corresponding is provided with bipassage ring connected in star, on described annular groove, coordinates flange is installed, and is distributed with mounting-positioning holes and positioning boss on described flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320578356.4U CN203513171U (en) | 2013-09-17 | 2013-09-17 | Large-tonnage hydraulic jack with automatic restoring and limiting functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320578356.4U CN203513171U (en) | 2013-09-17 | 2013-09-17 | Large-tonnage hydraulic jack with automatic restoring and limiting functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203513171U true CN203513171U (en) | 2014-04-02 |
Family
ID=50372130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320578356.4U Expired - Fee Related CN203513171U (en) | 2013-09-17 | 2013-09-17 | Large-tonnage hydraulic jack with automatic restoring and limiting functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203513171U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006004A (en) * | 2018-01-03 | 2018-05-08 | 江苏恒立液压股份有限公司 | Support cylinder |
-
2013
- 2013-09-17 CN CN201320578356.4U patent/CN203513171U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006004A (en) * | 2018-01-03 | 2018-05-08 | 江苏恒立液压股份有限公司 | Support cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20150917 |
|
| EXPY | Termination of patent right or utility model |