CN2755066Y - Rotary support jack - Google Patents
Rotary support jack Download PDFInfo
- Publication number
- CN2755066Y CN2755066Y CN 200420098491 CN200420098491U CN2755066Y CN 2755066 Y CN2755066 Y CN 2755066Y CN 200420098491 CN200420098491 CN 200420098491 CN 200420098491 U CN200420098491 U CN 200420098491U CN 2755066 Y CN2755066 Y CN 2755066Y
- Authority
- CN
- China
- Prior art keywords
- rotary
- push rod
- type jack
- nut
- valve
- 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
- Lift Valve (AREA)
Abstract
The utility model relates to a rotary support type jack, which is composed of a rotary nut, two ejector rods, two supporters and one rotary shaft, wherein both ends of the supporters are provided with sleeves while one end of the supporter is sheathed on the rotary shaft and the other end of the supporter is sheathed on the ejector rod; the ejector rods are oppositely screwed into the nut which is provided with forward buckles and backward buckles; the rotary nut enables the two ejector rods to move forwards and backwards. When a connecting flange of a valve is pushed away, the valve and a flange mat can be easily replaced.
Description
One, technical field
The utility model relates to a kind ofly to be changed valve or changes the rotary-supporting type jack that the flange mat is used.
Two, background technology
At present, it all is the butt flange that crowbar is pried open the valve both sides that the oil worker changes valve, takes down old valve and changes new valve, dismounting is all very hard, is difficult to levelling, and the several people is busy half a day and just valve is changed, can't guarantee once to change success, during because of the replacing valve, often the flange mat is made a mess of, caused leakage, sometimes be good and sound flange mat, the dismounting valve more than once could be good and sound, could guarantee not miss, and this work is to allow a job of the headache of oil worker.
Three, summary of the invention
The purpose of this utility model provides a kind of rotary-supporting type jack, solves the problem that the oil worker changes valve or changes flange mat difficulty.
The technical solution of the utility model realizes in the following manner:
The utility model is made up of a swivel nut, two push rods, two supports, a rotating shaft, it is characterized in that supporting two ends and be provided with sleeve, one end is enclosed within the rotating shaft, one end is enclosed within on the push rod, push rod screws in the nut with positive left-hand thread relatively, swivel nut makes two forward and reverse motions of push rod, backs down the butt flange of valve, can easily change valve and flange mat.
One end of push rod is provided with male thread, and an end is provided with circle or criss-cross or M shape stay bearing plate.
Nut is many prismatics, is provided with the female thread of the positive left-hand thread of band that the male thread with push rod is complementary in it.
But angle is pacified a cover rotary-supporting type jack again in the rotating shaft, but angle revolves the butt flange of overhead-valve door, makes flange stressed more balanced.
That compared with the prior art the utility model has is simple in structure, change valve or the flange mat light, time saving and energy saving, guaranteed workmanship, be oil worker's good assistant.
Four, description of drawings
Fig. 1-structural representation of the present utility model;
1-nut 2-support 3-push rod 4-rotating shaft
Five, embodiment
For further disclosing the technical solution of the utility model, be further described by embodiment below in conjunction with Figure of description:
The utility model is by a swivel nut 1, two are supported 2, two push rods 3, a rotating shaft 4 is formed, it is characterized in that supporting two ends and be provided with sleeve, one end is enclosed within the rotating shaft, one end is enclosed within on the push rod, push rod screws in the nut with positive left-hand thread relatively, swivel nut makes two push rod both forward and reverse directions motions, back down the butt flange of valve, can easily change valve and flange mat, in order to make the flange stress equalization, can in rotating shaft, pacify a cover rotary-supporting type jack again, but angle revolves the butt flange of overhead-valve door, make the distance equity of top flange, guarantee to change the quality of valve or flange.
Claims (4)
1, a kind of rotary-supporting type jack, form by a swivel nut, two push rods, two supports, a rotating shaft, it is characterized in that supporting two ends and be provided with sleeve, one end is enclosed within the rotating shaft, one end is enclosed within on the push rod, push rod screws in the nut with positive left-hand thread relatively, and swivel nut makes two forward and reverse motions of push rod.
2, rotary-supporting type jack according to claim 1 is characterized in that an end of push rod is provided with male thread, and an end is provided with circle or criss-cross or M shape stay bearing plate.
3, rotary-supporting type jack according to claim 1 is characterized in that nut is many prismatics, is provided with the female thread of the positive left-hand thread of band that the male thread with push rod is complementary in it.
4, rotary-supporting type jack according to claim 1, but it is characterized in that angle peace one cover rotary-supporting type jack in the rotating shaft, but angle revolves the butt flange of overhead-valve door.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200420098491 CN2755066Y (en) | 2004-11-21 | 2004-11-21 | Rotary support jack |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200420098491 CN2755066Y (en) | 2004-11-21 | 2004-11-21 | Rotary support jack |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2755066Y true CN2755066Y (en) | 2006-02-01 |
Family
ID=35928695
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 200420098491 Expired - Fee Related CN2755066Y (en) | 2004-11-21 | 2004-11-21 | Rotary support jack |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2755066Y (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102126527A (en) * | 2011-01-31 | 2011-07-20 | 马兆林 | Suspension type transmission moving frame |
CN108909441A (en) * | 2018-08-29 | 2018-11-30 | 扬州大学 | Hybrid vehicle pressure-oil tank composite supporting structure |
-
2004
- 2004-11-21 CN CN 200420098491 patent/CN2755066Y/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102126527A (en) * | 2011-01-31 | 2011-07-20 | 马兆林 | Suspension type transmission moving frame |
CN108909441A (en) * | 2018-08-29 | 2018-11-30 | 扬州大学 | Hybrid vehicle pressure-oil tank composite supporting structure |
CN108909441B (en) * | 2018-08-29 | 2023-12-22 | 扬州大学 | High-pressure oil tank composite supporting structure of hybrid electric vehicle |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |