CN203604315U - Flat scissor type oil cylinder - Google Patents
Flat scissor type oil cylinder Download PDFInfo
- Publication number
- CN203604315U CN203604315U CN201320713745.3U CN201320713745U CN203604315U CN 203604315 U CN203604315 U CN 203604315U CN 201320713745 U CN201320713745 U CN 201320713745U CN 203604315 U CN203604315 U CN 203604315U
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- CN
- China
- Prior art keywords
- piston
- cylinder body
- piston rod
- hole
- top cover
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- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a flat scissor type oil cylinder. The oil cylinder comprises a cylinder body and a piston. The piston is movably arranged in the cylinder body and is fixedly connected with a piston rod, and one end of the piston rod, which is away from the piston, is matched with a top cover. An exhaust hole is formed in the top cover. One end of the piston rod, which is away from the piston, is further fixedly connected with a lug, a through hole is formed in the lug, and a protruding block protruding along the diameter direction of the through hole is arranged on the inner wall of the through hole. An oil feeding joint is welded on the cylinder body close to the base. According to the oil cylinder, the oil cylinder is simple in structure and low in manufacturing cost; different sealing parts are arranged at different positions, so that the sealing effect is improved; the structural arrangement of parts of the piston, the piston rod, the cylinder body and the top cover are reasonable, so that the bearing capacity and the service life are increased effectively; a hook during lifting can be disposed effectively in the lug and the protruding block arranged inside, so that the safety is enhanced; moreover, position arrangements of the exhaust port and an oil feeding port are reasonable.
Description
Technical field
The utility model relates to a kind of oil cylinder, relates in particular to a kind of straight snips formula oil cylinder.
Background technique
Hydraulic jack is as the executive component in Hydraulic Power Transmission System, and playing hydraulic energy transfer is that mechanical energy must act on, and its significance is self-evident, along with the development of industry is also more and more higher to the requirement of hydraulic jack, require high capacity, high-speed, maintenance rate is low, and reliability is high.And existing straight snips formula oil cylinder is all not enough to some extent in sealing and bearing capacity.
Summary of the invention
The purpose of this utility model is in order to solve technical problem related in background technique, and a kind of straight snips formula oil cylinder is provided.
The technical solution of the utility model is: a kind of straight snips formula oil cylinder, comprise cylinder body and piston, described piston is arranged in cylinder body actively, one end of described cylinder body is by base seal, described piston is positioned at one end place of the cylinder body that base seals, described piston is also fixed with piston rod, described piston rod matches with top cover away from one end of piston, an internal surface of described lid matches with cylinder body, another internal surface of described lid matches with piston rod, described top cover is provided with relief opening, described relief opening communicates with the air flue being arranged in top cover, described air flue communicates with the cavity in cylinder body, described piston rod is also fixed with earrings away from one end of piston, in described earrings, be provided with a through hole, the inwall that is positioned at described through hole is provided with a protruding block along through-hole diameter direction projection, described cylinder body is near being welded with fuel inlet fitting near base, described fuel inlet fitting is provided with a filler opening, filler opening communicates with the oil duct being arranged in fuel inlet fitting, oil duct leads to the cavity between piston and base.
Preferred as one of the present utility model, on described piston, offer a through hole, described piston rod passes through hole and is connected with piston by nut.
Preferred as one of the present utility model, on described piston rod, be positioned in throughhole portions and offer one for placing the groove of O-ring seals.
Preferred as one of the present utility model, on the outer peripheral surface of described piston, offer three grooves, two grooves in described three grooves are used for placing O-ring seals, and remaining one for placing open type seal ring.
Preferred as one of the present utility model, between described top cover and piston rod, be provided with two seal rings.
In sum, the utlity model has following advantage:
The utility model is simple in structure, fabricating cost is low, by different Sealings is set at different parts, strengthen sealing effect, between piston, piston rod, cylinder body and top cover all parts, structure arranges rationally simultaneously, effectively improved bearing capacity and working life, simultaneously earrings with and the unhook can effectively place lifting time of the projection of interior setting strengthened Security, it is more reasonable that the position of relief opening and filler opening arranges.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a preferred embodiment of the utility model.
Embodiment
Below in conjunction with accompanying drawing, with embodiment, the utility model is described in further detail.
As shown in Figure 1, a kind of straight snips formula oil cylinder, comprise cylinder body 1 and piston 2, described piston 2 is arranged in cylinder body 1 actively, one end of described cylinder body 1 is sealed by base 11, described piston 2 is positioned at one end place of the cylinder body 1 that base 11 seals, described piston 2 is also fixed with piston rod 21, described piston rod 21 matches with a lid 4 away from one end of piston 2, an internal surface of described top cover 4 matches with cylinder body 1, another internal surface of described top cover 4 matches with piston rod 21, described top cover 4 is provided with relief opening 41, described relief opening 41 communicates with the air flue 42 being arranged in a lid 4, described air flue 42 communicates with the cavity 12 in cylinder body 1, described piston rod 21 is also fixed with earrings 3 away from one end of piston 2, in described earrings 3, be provided with a through hole 31, the inwall that is positioned at described through hole 31 is provided with a protruding block 32 along through hole 31 diametric(al) projections, described cylinder body 1 is near being welded with fuel inlet fitting 5 near base 11, described fuel inlet fitting 5 is provided with a filler opening 51, filler opening 51 communicates with the oil duct 51 being arranged in fuel inlet fitting 5, oil duct 51 leads to the cavity 13 between piston 2 and base 11.On described piston 2, offer a through hole 22, described piston rod 21 passes through hole 22 and is connected with piston 2 by nut.On described piston rod 21, be positioned in through hole 22 parts and offer one for placing the groove of O-ring seals 6.On the outer peripheral surface of described piston 2, offer three grooves, two grooves in described three grooves are used for placing O-ring seals 6, and remaining one for placing open type seal ring 7.Between described top cover 4 and piston rod 21, be provided with two seal rings 9.
More than explanation is only to explanation of the present utility model, make those of ordinary skills' can completely implement this programme, but be not to restriction of the present utility model, those skilled in the art are reading after this specification and can make to the present embodiment the modification that there is no creative contribution as required, and these are all not creative modifications.But as long as within the scope of claim of the present utility model, be all subject to the protection of Patent Law.
Claims (5)
1. a straight snips formula oil cylinder, it is characterized in that: comprise cylinder body (1) and piston (2), described piston (2) is arranged in cylinder body (1) actively, one end of described cylinder body (1) is sealed by base (11), described piston (2) is positioned at one end place of the cylinder body (1) that base (11) seals, described piston (2) is also fixed with piston rod (21), described piston rod (21) matches with top cover (4) away from one end of piston (2), an internal surface of described top cover (4) matches with cylinder body (1), another internal surface of described top cover (4) matches with piston rod (21), described top cover (4) is provided with relief opening (41), described relief opening (41) communicates with the air flue (42) being arranged in top cover (4), described air flue (42) communicates with the cavity (12) in cylinder body (1), described piston rod (21) is also fixed with earrings (3) away from one end of piston (2), in described earrings (3), be provided with a through hole (31), the inwall that is positioned at described through hole (31) is provided with a protruding block (32) along through hole (31) diametric(al) projection, described cylinder body (1) is welded with fuel inlet fitting (5) near near base (11), described fuel inlet fitting (5) is provided with a filler opening (51), filler opening (51) communicates with the oil duct (51) being arranged in fuel inlet fitting (5), oil duct (51) leads to the cavity (13) being positioned between piston (2) and base (11).
2. a kind of straight snips formula oil cylinder according to claim 1, it is characterized in that: on described piston (2), offer a through hole (22), described piston rod (21) passes through hole (22) and is connected with piston (2) by nut.
3. a kind of straight snips formula oil cylinder according to claim 2, is characterized in that: on described piston rod (21), be positioned in through hole (22) part and offer one for placing the groove of O-ring seals (6).
4. a kind of straight snips formula oil cylinder according to claim 1 and 2, it is characterized in that: on the outer peripheral surface of described piston (2), offer three grooves, two grooves in described three grooves are used for placing O-ring seals (6), and remaining one for placing open type seal ring (7).
5. a kind of straight snips formula oil cylinder according to claim 1, is characterized in that: between described top cover (4) and piston rod (21), be provided with two seal rings (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320713745.3U CN203604315U (en) | 2013-11-07 | 2013-11-07 | Flat scissor type oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320713745.3U CN203604315U (en) | 2013-11-07 | 2013-11-07 | Flat scissor type oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203604315U true CN203604315U (en) | 2014-05-21 |
Family
ID=50716992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320713745.3U Expired - Fee Related CN203604315U (en) | 2013-11-07 | 2013-11-07 | Flat scissor type oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203604315U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015169A (en) * | 2016-07-15 | 2016-10-12 | 武汉科技大学 | V-shaped fracture sealing assembly used for servo hydraulic cylinder |
| CN108518382A (en) * | 2018-06-19 | 2018-09-11 | 天津隆迪伟业液压设备有限公司 | A kind of hydraulic cylinder and assemble method |
-
2013
- 2013-11-07 CN CN201320713745.3U patent/CN203604315U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015169A (en) * | 2016-07-15 | 2016-10-12 | 武汉科技大学 | V-shaped fracture sealing assembly used for servo hydraulic cylinder |
| CN106015169B (en) * | 2016-07-15 | 2017-12-15 | 武汉科技大学 | A kind of V-arrangement fracture seal assembly for servo hydraulic cylinder |
| CN108518382A (en) * | 2018-06-19 | 2018-09-11 | 天津隆迪伟业液压设备有限公司 | A kind of hydraulic cylinder and assemble method |
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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: 20140521 Termination date: 20171107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |