CN2912925Y - Apparatus for fastening loosened screw - Google Patents
Apparatus for fastening loosened screw Download PDFInfo
- Publication number
- CN2912925Y CN2912925Y CN 200620100075 CN200620100075U CN2912925Y CN 2912925 Y CN2912925 Y CN 2912925Y CN 200620100075 CN200620100075 CN 200620100075 CN 200620100075 U CN200620100075 U CN 200620100075U CN 2912925 Y CN2912925 Y CN 2912925Y
- Authority
- CN
- China
- Prior art keywords
- ratchet
- hydraulic oil
- connecting rod
- hydraulic
- housing
- 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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Abstract
The utility model relates to a screw loosening/tightening device which includes a shell, a hydraulic oil pump, a hydraulic oil cylinder, an oil valve, a ratchet wheel, a ratchet wheel shaft and a ratchet wheel rocker. The hydraulic oil cylinder is arranged in the shell; the internal chamber of the hydraulic oil cylinder is provided with a connecting rod; the connection position between the connecting rod and the piston is adjustable; one end of the connecting rod is connected with the rocker on the ratchet wheel shaft; a spring is arranged between the connecting rod end and the shell which is provided with an oil return chamber; the external wall of the shell of the two ratchet wheel surfaces is provided with fixed sleeves; the ratchet wheel rocker is articulated with a pawl; a spring is arranged between the pawl and the ratchet rocker; the ratchet wheel is provided with two faced ratchet wheels on the same shaft; a thimble-type spring and a cable are arranged between the hydraulic oil cylinder piton to and the oil return valve; the hydraulic oil pump is provided with the oil valve which is respectively communicated with the hydraulic oil cylinder and the oil return chamber. Compared with the prior art, the utility model has a simple structure and is effort-saving, time-saving and convenient.
Description
Technical field:
The utility model relates to the loosening fastener of a kind of screw.
Background technology:
Present screw to doughnut and main equipment, mostly use pneumatic and electric tool to carry out fastening and loosening, but in particular cases at some, move in the way at road as automobile, in the time of need changing tire, loosening to carry out fastening screw through pneumatic and electric tool, really be that part is extremely required great effort, time-consuming thing, the screw of some main equipments, though can carry out fastening and loosening with pneumatic and electric tool during installation, but owing to the restriction of factors such as working space is little, pneumatic and electric tool is difficult to use, and brings very big difficulty to maintenance when maintenance.
Summary of the invention:
The purpose of this utility model be to provide a kind of laborsaving, save time, the loosening fastener of screw easily.
The utility model the utility model comprises housing, hydraulic oil pump, fuel tap, ratchet, ratchet shaft, the ratchet rocking arm, it is characterized in that being provided with in the housing hydraulic jack, the hydraulic cylinder piston inner chamber is provided with connecting rod, and the link position of connecting rod and piston is adjustable, one end of connecting rod links to each other with the rocking arm on being located at ratchet shaft, and connect between rod end and housing and be provided with spring, be provided with oil back chamber in the housing, be equipped with fixed cover on the housing outer wall of two ratchet surfaces, be hinged with ratchet on the ratchet rocking arm, be provided with spring between ratchet and ratchet rocking arm, described ratchet is to be provided with two relative ratchets on same axle, the center of ratchet shaft is provided with the hole, be provided with thimble-type spring and drag-line between hydraulic cylinder piston top and oil return valve, hydraulic oil pump is provided with fuel tap, communicates with hydraulic jack and oil back chamber respectively.
The hole that described ratchet shaft center is provided with is preferably the square hole that has two sides at least.
Set fixed cover on the described housing outer wall, its endoporus are preferably the square hole that has two sides at least.
When becoming flexible screw, outside housing, insert square endoporus with it in the fixed cover and rent the sleeve of joining, be enclosed within on the screw that needs loosening screw phase Kuai, a state in the Zhou Dynasty, in the square hole on the sleeve pipe of loosening screw and the end insertion ratchet shaft that the square hole on the ratchet shaft matches, adjust the link position of connecting rod and piston, the other end is enclosed within to be needed on the loosening screw, press the handle of hydraulic oil pump repeatedly, oil in the hydraulic oil pump is just opened the check valve that leads in the hydraulic jack, make oil enter hydraulic jack, just promoting piston outwards moves, the ratchet rocking arm that thereupon promotes to link to each other with piston rod rotates, hinged ratchet just promotes the ratchet rotation on the ratchet rocking arm, realize the loosening of screw, when piston moves to desired location, be located at the drag-line between hydraulic cylinder piston top and oil return valve, just oil return valve is opened, at this moment, because the effect of the spring that is provided with between ratchet rocking arm and housing, force hydraulic cylinder piston inwardly to move, oil in the hydraulic jack, just flow to oil back chamber by oil return valve, when hydraulic cylinder piston moves near the bottom, the thimble of the thimble-type spring that is provided with between hydraulic cylinder piston top and oil return valve, oil return valve cuts out, operate the oil that hydraulic oil pump confesses and enter again in hydraulic jack this moment, hydraulic cylinder piston is outwards moved, the thimble-type spring along with piston outwards motion at release pressure gradually, the thimble of the thimble-type spring that when between hydraulic cylinder piston top and oil return valve, is provided with, when having left oil return valve, outwards motion is in the process of release pressure gradually because the thimble-type spring is along with piston, and the oil in the hydraulic jack has possessed certain pressure so oil return valve still is closed, thereby has guaranteed that hydraulic cylinder piston continues outwards motion.Hydraulic oil pump is at the work elbow, when handle lifts, the hydraulic oil pump piston is along with moving upward, the check valve that leads to hydraulic jack is closed, the check valve that leads to oil back chamber is opened under the suction of hydraulic oil pump piston, the interior oil of oil back chamber this moment just flows in the hydraulic oil pump, when depressing handle and lift, the hydraulic oil pump piston is along with moving downward, the check valve that leads to oil back chamber is closed under the pressure of hydraulic oil pump piston, the check valve that leads to hydraulic jack is opened under the effect of oil pressure, and the oil in the hydraulic oil pump is pressed towards in the hydraulic jack.During holding screw, another ratchet that the ratchet that uses when then using with loosening screw is relative, it is opposite when moving just in time with loosening screw.
Compared with prior art, of the present utility model simple in structure, laborsaving, save time, convenient.
Description of drawings:
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the side-looking structural representation of the utility model Fig. 1.
Fig. 3 is the plan structure schematic diagram of the utility model Fig. 2.
Fig. 4 is thimble-type spring and the stayed structure signal enlarged drawing between the utility model top land and oil return valve.
Shown in the figure: 1 is housing, and 2 is hydraulic cylinder piston, and 3 is the thimble-type spring, 4 is drag-line, and 5 is oil return valve, and 6 is the hydraulic oil pump handle, 7 is hydraulic oil pump, and 8,9 is the hydraulic oil pump check valve, and 10 is oil back chamber, 11,17 is spring, and 12 is ratchet, and 13 is the ratchet axis hole, 14 is ratchet shaft, and 15 is ratchet, and 16 is rocking arm, 18 is connecting rod, and 19 is fixed cover.
The specific embodiment:
Embodiment 1:
The utility model comprises housing, hydraulic oil pump, hydraulic jack, fuel tap, ratchet, ratchet shaft, the ratchet rocking arm, hydraulic jack is located in the housing, the hydraulic cylinder piston inner chamber is provided with connecting rod, connecting rod and piston are with being threaded, the position is adjustable, one end of connecting rod is hinged with the rocking arm that is located on the ratchet shaft, and connect between rod end and housing and be provided with spring, be provided with oil back chamber in the housing, being equipped with its endoporus of fixed cover on the housing outer wall of two ratchet surfaces is cubic hole, be hinged with ratchet on the ratchet rocking arm, be provided with spring between ratchet and ratchet rocking arm, described ratchet is to be provided with two relative ratchets on same axle, the center of ratchet shaft is provided with cubic hole, be provided with thimble-type spring and drag-line between hydraulic cylinder piston top and oil return valve, hydraulic oil pump is provided with fuel tap, communicates with hydraulic jack and oil back chamber respectively.
Embodiment 2:
Compare with embodiment 1, its difference is that to be equipped with its endoporus of fixed cover on the housing outer wall be two square holes, and the center of ratchet shaft is provided with two square holes.
Embodiment 3:
Compare with embodiment 1, its difference is that to be equipped with its endoporus of fixed cover on the housing outer wall be hexagonal hole, and the center of ratchet shaft is provided with hexagonal hole.
Claims (3)
1, a kind of screw becomes flexible fastener, the utility model comprises housing, hydraulic oil pump, fuel tap, ratchet, ratchet shaft, the ratchet rocking arm, it is characterized in that being provided with in the housing hydraulic jack, the hydraulic cylinder piston chamber is provided with connecting rod, and the link position of connecting rod and piston is adjustable, one end of connecting rod links to each other with the rocking arm on being located at ratchet shaft, and connect between rod end and housing and be provided with spring, be provided with oil back chamber in the housing, be equipped with fixed cover on the housing outer wall of two ratchet surfaces, be hinged with ratchet on the ratchet rocking arm, be provided with spring between ratchet and ratchet rocking arm, described ratchet is to be provided with two relative ratchets on same axle, the center of ratchet shaft is provided with the hole, be provided with thimble-type spring and drag-line between hydraulic cylinder piston top and oil return valve, hydraulic oil pump is provided with fuel tap, communicates with hydraulic jack and oil back chamber respectively.
2, as the loosening fastener of the said screw of claim 1, it is characterized in that the hole that described ratchet shaft center is provided with, for having two sides' square hole at least.
3, as the loosening fastener of the said screw of claim 1, it is characterized in that set fixed cover on the described housing outer wall, its endoporus is the square hole that has two sides at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620100075 CN2912925Y (en) | 2006-04-20 | 2006-04-20 | Apparatus for fastening loosened screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620100075 CN2912925Y (en) | 2006-04-20 | 2006-04-20 | Apparatus for fastening loosened screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2912925Y true CN2912925Y (en) | 2007-06-20 |
Family
ID=38167525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620100075 Expired - Fee Related CN2912925Y (en) | 2006-04-20 | 2006-04-20 | Apparatus for fastening loosened screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2912925Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101898343A (en) * | 2010-08-12 | 2010-12-01 | 太仓优尼泰克精密机械有限公司 | Hydraulic wrench |
| CN106382218A (en) * | 2016-11-30 | 2017-02-08 | 潍坊胜利石化机械有限公司 | Automatic packaging fastening device |
| CN107962523A (en) * | 2017-11-15 | 2018-04-27 | 常州信息职业技术学院 | Pneumatic impact spanner |
-
2006
- 2006-04-20 CN CN 200620100075 patent/CN2912925Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101898343A (en) * | 2010-08-12 | 2010-12-01 | 太仓优尼泰克精密机械有限公司 | Hydraulic wrench |
| CN106382218A (en) * | 2016-11-30 | 2017-02-08 | 潍坊胜利石化机械有限公司 | Automatic packaging fastening device |
| CN106382218B (en) * | 2016-11-30 | 2019-05-10 | 潍坊胜利石化机械有限公司 | Automatic tight packing unit |
| CN107962523A (en) * | 2017-11-15 | 2018-04-27 | 常州信息职业技术学院 | Pneumatic impact spanner |
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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 |