CN203474362U - Hydraulic jack for large tonnage equal thrust engineering - Google Patents
Hydraulic jack for large tonnage equal thrust engineering Download PDFInfo
- Publication number
- CN203474362U CN203474362U CN201320334864.8U CN201320334864U CN203474362U CN 203474362 U CN203474362 U CN 203474362U CN 201320334864 U CN201320334864 U CN 201320334864U CN 203474362 U CN203474362 U CN 203474362U
- Authority
- CN
- China
- Prior art keywords
- piston
- rod
- pistons
- hydraulic jack
- bar
- 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
- 210000003660 Reticulum Anatomy 0.000 claims description 4
- 230000035939 shock Effects 0.000 abstract 1
Abstract
The utility model relates to a hydraulic jack for a large tonnage equal thrust engineering. The hydraulic jack comprises a first rod, a second rod, an internal piston rod, a front-arranged top head, a front cover and a rear cover. The front and the back ends of the first rod are respectively provided with a first rod piston; the front and the back ends of the second rod are respectively provided with a second rod piston; the front and the back ends of the internal piston rod are respectively provided with an internal small piston; piston seal rings are respectively arranged on the first rod pistons, the second rod pistons and the internal small pistons; the front-arranged top head is connected with the front cover; and at least two piston seal rings are respectively arranged on the first rod pistons, the second rod pistons and the internal small pistons. By the use of the hydraulic jack, tonnage can be increased to 300 tons and the hydraulic jack has great guiding performance; noise and shock are relatively small; and the hydraulic jack is environment protecting and possesses small size.
Description
Technical field
The utility model belongs to the thrust engineering hydraulic jacks such as large-tonnage engineering hydraulic jack technical field, especially a kind of large-tonnage.
Background technology
At present, on the push rod of the little tonnage of prior art, be the structure of single piston, design oil pressure is restricted, design large-tonnage insufficient pressure, poor stability, noise is large, fragile.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of tonnage can be promoted to more than 500 tons, and leads, and noise and vibrations are all less, the thrust engineering hydraulic jacks such as large-tonnage that energy-conserving and environment-protective and volume are little.
The utility model solves its technical matters and takes following technical scheme to realize:
The thrust engineering hydraulic jacks such as a kind of large-tonnage, comprise a bar, two bars, inner piston rod, preposition top, protecgulum and bonnet, the rear and front end of a described bar is equipped with a bar piston, the rear and front end of described two bars is equipped with two bar pistons, the rear and front end of described inner piston rod is equipped with interior valve piston, on a described bar piston, two bar pistons and interior valve piston, be equipped with piston packing ring, described preposition top connects protecgulum.
And, on a described bar piston, two bar pistons and interior valve piston, be equipped with at least two piston packing rings.
Advantage of the present utility model and good effect are:
1, tonnage of the present utility model can be promoted to 300 tons, and leads, and noise and vibrations are all less, energy-conserving and environment-protective, and volume is little.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1, a bar; 2, two bars; 3, inner piston rod; 4, preposition top; 5, protecgulum; 6, bonnet; 7, a bar piston; 8, two bar pistons; 9, interior valve piston.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is further described:
The thrust engineering hydraulic jacks such as a kind of large-tonnage, as shown in Figure 1: comprise a bar 1, two bars 2, inner piston rod 3, preposition top 4, protecgulum 5 and bonnet 6, the rear and front end of a described bar 1 is equipped with a bar piston 7, the rear and front end of described two bars 2 is equipped with two bar pistons 8, the rear and front end of described inner piston rod 3 is equipped with interior valve piston 9, on a described bar piston 7, two bar pistons 8 and interior valve piston 9, be equipped with piston packing ring, described preposition top 4 connects protecgulum 5; On described a bar piston 7, two bar pistons 8 and interior valve piston 9, be equipped with at least two piston packing rings.
Tonnage of the present utility model can be promoted to 300 tons, and leads, and noise and vibrations are all less, energy-conserving and environment-protective, and volume is little.
It is emphasized that; embodiment described in the utility model is illustrative; rather than determinate; therefore the utility model is not limited to the embodiment described in the specific embodiment; every other embodiments that drawn according to the technical solution of the utility model by those skilled in the art, belong to the scope that the utility model is protected equally.
Claims (2)
1. the thrust engineering hydraulic jack such as large-tonnage, it is characterized in that: comprise a bar, two bars, inner piston rod, preposition top, protecgulum and bonnet, the rear and front end of a described bar is equipped with a bar piston, the rear and front end of described two bars is equipped with two bar pistons, the rear and front end of described inner piston rod is equipped with interior valve piston, on a described bar piston, two bar pistons and interior valve piston, be equipped with piston packing ring, described preposition top connects protecgulum.
2. the thrust engineering hydraulic jack such as large-tonnage according to claim 1, is characterized in that: on a described bar piston, two bar pistons and interior valve piston, be equipped with at least two piston packing rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320334864.8U CN203474362U (en) | 2013-06-09 | 2013-06-09 | Hydraulic jack for large tonnage equal thrust engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320334864.8U CN203474362U (en) | 2013-06-09 | 2013-06-09 | Hydraulic jack for large tonnage equal thrust engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203474362U true CN203474362U (en) | 2014-03-12 |
Family
ID=50222736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320334864.8U Expired - Fee Related CN203474362U (en) | 2013-06-09 | 2013-06-09 | Hydraulic jack for large tonnage equal thrust engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203474362U (en) |
-
2013
- 2013-06-09 CN CN201320334864.8U patent/CN203474362U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20150609 |
|
| EXPY | Termination of patent right or utility model |