CN105712234A - Jack - Google Patents
Jack Download PDFInfo
- Publication number
- CN105712234A CN105712234A CN201410710862.3A CN201410710862A CN105712234A CN 105712234 A CN105712234 A CN 105712234A CN 201410710862 A CN201410710862 A CN 201410710862A CN 105712234 A CN105712234 A CN 105712234A
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- China
- Prior art keywords
- piston
- piston cylinder
- connecting rod
- jack
- oil
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Abstract
The invention discloses a jack which is mainly composed of a piston cylinder and a piston. The piston freely slides up and down in the piston cylinder. The piston cylinder is provided with a base. A first oil way is arranged in the base, one end of the first oil way leads to the interior of the piston cylinder, and the other end of the first oil way leads to the exterior of the piston cylinder and is provided with a first oil valve. The piston is in a hollow design, a small piston is arranged in the piston, and a connecting rod is arranged on the lower portion of the small piston. The connecting rod penetrates through the piston and the piston cylinder and is fixed in the base. A second oil way is arranged in the base, one end of the second oil way leads to the connecting rod, and the other end of the second oil way leads to the exterior of the piston cylinder and is provided with a second oil valve. The connecting rod is provided with an oil outlet port. The jack is ingenious in structure, and the problem that a piston of a common jack cannot return due to the fact that a heavy object is supported for a long time is solved.
Description
Technical field
The present invention relates to a kind of jack.
Background technology
Jack plays very important effect in modern industry is applied, it can support the sizable object of weight, but due to some special circumstances, jack needs to support weight longer a period of time, and some special jack can complete such task, but due to support weight for a long time, piston extension spring is shaped, after withdrawing under weight, piston substantially cannot return, cause that jack is scrapped.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of jack that can replace extension spring help piston return.
In order to solve above-mentioned technical problem, the invention provides a kind of jack, mainly it is made up of piston cylinder and piston, described piston freely up and down slides in piston cylinder, described piston cylinder is provided with base, the first oil circuit it is provided with in described base, first oil circuit one end is led to inside piston cylinder, the other end leads to piston cylinder outside and is provided with the first fuel tap, described piston is hollow design, inside is provided with valve piston, described valve piston bottom is provided with connecting rod, described connecting rod is fixed in base through piston and piston cylinder, the second oil circuit it is provided with in base, connecting rod is led in second oil circuit one end, the other end leads to piston cylinder outside and is provided with the second fuel tap, described connecting rod is provided with oil-out.
Adopt said structure, it has the beneficial effects that: by injecting hydraulic oil in the first oil circuit, oil pressure promotes piston so that jack stand weight can support weight for a long time, after weight completes erection, open the first fuel tap and shed in piston cylinder after hydraulic oil, hydraulic oil is injected to the second oil circuit, owing to connecting rod is fixed in piston cylinder base, so oil pressure forces piston to move down until return, this apparatus structure is ingenious, solves jack and causes that piston can not the problem of return owing to supporting weight for a long time.
Accompanying drawing explanation
Fig. 1 is the structural representation of jack of the present invention.
In figure: 1-piston cylinder, 2-piston, 3-base, 4-the first oil circuit, 5-the first fuel tap, 6-valve piston, 7-connecting rod, 8-the second oil circuit, 9-the second fuel tap, 10-oil-out.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
As shown in Figure 1, a kind of jack, mainly it is made up of piston cylinder 1 and piston 2, described piston 2 freely up and down slides in piston cylinder 1, described piston cylinder 1 is provided with base 3, the first oil circuit 4 it is provided with in described base 3, it is internal that piston cylinder 1 is led in first oil circuit 4 one end, the other end leads to piston cylinder 1 outside and is provided with the first fuel tap 5, described piston 2 is hollow design, inside is provided with valve piston 6, described valve piston 6 bottom is provided with connecting rod 7, described connecting rod 7 is fixed in base 3 through piston 2 and piston cylinder 1, the second oil circuit 8 it is provided with in base 3, connecting rod 7 is led in second oil circuit 8 one end, the other end leads to piston cylinder 1 outside and is provided with the second fuel tap 9, described connecting rod 7 is provided with oil-out 10.
Using before this jack, it should be noted that check that whether functions of the equipments normal, for instance whether oil circuit unimpeded, whether fuel tap is closed, piston cylinder 1 with or without oil leakage phenomenon etc., can use after confirming to all go well.When needing jack-up weight, first jack should be placed in weight bottom and rationally accept position, open the first fuel tap 5, in piston cylinder 1, it is slowly injected into hydraulic oil by the first oil circuit 4, oil pressure forces piston 2 to move up along piston cylinder 1 thus by weight top to desired location, after closing the first fuel tap 5, piston 2 is maintained at fixed position can support weight for a long time；After completing the erection to weight or processing, need to remove jack, should first open the first fuel tap 5 and release hydraulic oil in piston cylinder 1, then the second fuel tap 9 is opened, in piston 2, hydraulic oil is injected by the second oil circuit 8, connecting rod 7, oil-out 10, owing to valve piston 6 and connecting rod 7 are to be fixed in the base 3 of piston cylinder 1, piston 2 can be forced to move down for all oil pressure until return, can remove jack subsequently.This apparatus structure is ingenious, easy to use, the problem well solving piston return.
The similar jack designed by technical characteristic of any employing and the present invention will fall within protection scope of the present invention.
Claims (1)
1. a jack, mainly there are piston cylinder (1) and piston (2) composition, described piston (2) freely up and down slides in piston cylinder (1), described piston cylinder (1) is provided with base (3), the first oil circuit (4) it is provided with in described base (3), it is internal that piston cylinder (1) is led in first oil circuit (4) one end, the other end leads to piston cylinder (1) outside and is provided with the first fuel tap (5), it is characterized in that: described piston (2) is hollow design, inside is provided with valve piston (6), described valve piston (6) bottom is provided with connecting rod (7), described connecting rod (7) is fixed in base (3) through piston (2) and piston cylinder (1), the second oil circuit (8) it is provided with in base (3), connecting rod (7) is led in second oil circuit (8) one end, the other end leads to piston cylinder (1) outside and is provided with the second fuel tap (9), described connecting rod (7) is provided with oil-out (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410710862.3A CN105712234A (en) | 2014-12-01 | 2014-12-01 | Jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410710862.3A CN105712234A (en) | 2014-12-01 | 2014-12-01 | Jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105712234A true CN105712234A (en) | 2016-06-29 |
Family
ID=56145556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410710862.3A Pending CN105712234A (en) | 2014-12-01 | 2014-12-01 | Jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105712234A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109371843A (en) * | 2018-11-26 | 2019-02-22 | 中铁大桥科学研究院有限公司 | A kind of multi-functional jack set up for bridge spanning the sea Simply-supported Steel Beams |
-
2014
- 2014-12-01 CN CN201410710862.3A patent/CN105712234A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109371843A (en) * | 2018-11-26 | 2019-02-22 | 中铁大桥科学研究院有限公司 | A kind of multi-functional jack set up for bridge spanning the sea Simply-supported Steel Beams |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160629 |
|
| WD01 | Invention patent application deemed withdrawn after publication |