CN204152889U - A kind of hydraulic jack of high leak tightness - Google Patents
A kind of hydraulic jack of high leak tightness Download PDFInfo
- Publication number
- CN204152889U CN204152889U CN201420586470.6U CN201420586470U CN204152889U CN 204152889 U CN204152889 U CN 204152889U CN 201420586470 U CN201420586470 U CN 201420586470U CN 204152889 U CN204152889 U CN 204152889U
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- China
- Prior art keywords
- piston
- cylinder
- piston rod
- guide sleeve
- cylinder barrel
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Abstract
The utility model discloses a kind of hydraulic jack of high leak tightness, comprise cylinder barrel, cylinder tail, guide sleeve, piston and piston rod; Described cylinder barrel includes the first cylinder body and the second cylinder body; Described cylinder tail and guide sleeve are separately positioned on the two ends of cylinder barrel; Slide in described cylinder barrel and be provided with piston, be provided with piston packing between piston and inner wall of cylinder, between piston rod and piston, be provided with O RunddichtringO; Be provided with this special seal between piston rod and guide sleeve, be fixed with dust ring at the right-hand member start-up portion of guide sleeve; Installation passage is offered in described piston rod.Be respectively arranged with end cover, piston packing, O RunddichtringO, this special seal and dust ring in the utility model, ensure the sealing of each cavity in oil cylinder; Each assembly of oil cylinder is by the connection such as bolt, screw, and the installation for convenience detach when seal ring is installed, also makes oil cylinder be convenient to transport simultaneously; This oil cylinder structure of hydraulic is simpler, and volume is less, controls more convenient.
Description
Technical field
The utility model relates to a kind of hydraulic jack, specifically a kind of hydraulic jack of high leak tightness.
Background technique
Hydraulic jack is the crucial executive component in hydraulic system or equipment, the quality of its sealability directly affects the reliability of whole system work, so the sealing at its sealing especially piston rod and guide sleeve place, the sealing etc. of cylinder and cylinder barrel is the research topic of domestic and international Hydraulic Industry always.In oil cylinder uses, breaking down maximum is that leakage of oil occurs at cylinder seal circle place, its reason is because Sealing occurs in the ring-type accumulation of end of travel, wearing and tearing or destruction or oil film occur that oil flows down and drip a phenomenon, because seal ring is after the use a very long time, need to change seal ring, cylinder is normally run, avoid wasting fluid, cylinder efficiency is reduced, but existing cylinder is mostly and integrally forms, loaded down with trivial details during replacing seal ring, not easy to operate, installing/dismounting is inconvenient, be unfavorable for carrying, and piston rod is generally solid construction, thus make external object to pass oil cylinder, various electric wires during as installed, pipeline etc., this gives the installation of hydraulic jack, use brings inconvenience.
Model utility content
The purpose of this utility model be to provide a kind of for convenience detach, install, transport, structure is simpler, and volume is less, controls the hydraulic jack of high leak tightness easily, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technological scheme:
A hydraulic jack for high leak tightness, comprises cylinder barrel, cylinder tail, guide sleeve, piston and piston rod; Described cylinder barrel includes the first cylinder body and the second cylinder body, and the first cylinder body is fixedly connected with by some bolts with the junction point of the second cylinder body, between the first cylinder body and the second cylinder body, be provided with end cover; Described cylinder tail and guide sleeve are separately positioned on the two ends of cylinder barrel, and cylinder tail, guide sleeve are connected with cylinder barrel respectively by screw; Slide in described cylinder barrel and be provided with piston, be provided with piston packing between piston and inner wall of cylinder, in piston, be provided with tapped hole, piston rod is fixed on piston by tapped hole, is provided with O RunddichtringO between piston rod and piston; The right-hand member of described piston rod, through guide sleeve, is provided with this special seal, is fixed with dust ring at the right-hand member start-up portion of guide sleeve between piston rod and guide sleeve, and piston rod is through dust ring; Installation passage is offered in described piston rod.
Further: described cylinder tail and cylinder barrel are respectively arranged with oilhole.
Further: the width of described piston packing is 3 ~ 5mm.
Further: the right-hand member of described piston rod is installed with earrings.
Further: the diameter of described installation passage is 1/3 ~ 1/2 of the diameter of piston rod.
Compared with prior art, the beneficial effects of the utility model are: be respectively arranged with end cover, piston packing, O RunddichtringO, this special seal and dust ring in the utility model, ensure the sealing of each cavity in oil cylinder, avoid leakage of oil occurs, affect the performance of oil cylinder; Each assembly of oil cylinder is by the connection such as bolt, screw, and the installation for convenience detach when seal ring is installed, also makes oil cylinder be convenient to transport simultaneously; Installation passage is offered in piston rod, can by electric wire, pipeline etc. in installation passage, make this oil cylinder structure of hydraulic simpler, volume is less, controls more convenient.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of hydraulic jack of high leak tightness.
In figure: 1-cylinder barrel, 2-cylinder tail, 3-guide sleeve, 4-piston, 5-piston rod, 6-first cylinder body, 7-second cylinder body, 8-end cover, 9-bolt, 10-installs passage, 11-earrings, 12-piston packing, 13-O RunddichtringO, the special seal of 14-Si, 15-dust ring.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to figure, in the utility model embodiment, a kind of hydraulic jack of high leak tightness, comprises cylinder barrel 1, cylinder tail 2, guide sleeve 3, piston 4 and piston rod 5; Described cylinder barrel 1 includes the first cylinder body 6 and the second cylinder body 7, first cylinder body 6 is fixedly connected with by some bolts 9 with the junction point of the second cylinder body 7, can installing/dismounting easily, end cover 8 is provided with between the first cylinder body 6 and the second cylinder body 7, can prevent hydraulic oil in oil cylinder from flowing out, play good sealing effect; Described cylinder tail 2 and guide sleeve 3 are separately positioned on the two ends of cylinder barrel 1, and cylinder tail 2, guide sleeve 3 are connected with cylinder barrel 1 respectively by screw, and cylinder tail 2 and cylinder barrel 1 are respectively arranged with oilhole; Slide in described cylinder barrel 1 and be provided with piston 4, piston packing 12 is provided with between piston 4 and cylinder barrel 1 inwall, the width of piston packing 12 is 3 ~ 5mm, the left and right sides cavity sealing of piston 4 is not communicated, tapped hole is provided with in piston 4, piston rod 5 is fixed on piston 4 by tapped hole, is provided with O RunddichtringO 13, O RunddichtringO 13 and makes to seal between piston 4 and piston rod 5 between piston rod 5 and piston 4; The right-hand member of described piston rod 5 is through guide sleeve 3, and the right-hand member of piston rod 5 is installed with earrings 11, and be provided with this special seal 14 between piston rod 5 and guide sleeve 3, the right-hand member start-up portion of guide sleeve 3 is fixed with dust ring 15, and piston rod 5 is through dust ring 15; Offer installation path 10 in described piston rod 5, the diameter installing path 10 is 1/3 ~ 1/2 of the diameter of piston rod 5, installs in path 10 and is provided with electric wire or pipeline etc.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any reference character in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to mode of execution, but not each mode of execution only comprises an independently technological scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technological scheme in each embodiment also through appropriately combined, can form other mode of executions that it will be appreciated by those skilled in the art that.
Claims (5)
1. a hydraulic jack for high leak tightness, comprises cylinder barrel (1), cylinder tail (2), guide sleeve (3), piston (4) and piston rod (5); It is characterized in that: described cylinder barrel (1) includes the first cylinder body (6) and the second cylinder body (7), first cylinder body (6) is fixedly connected with by some bolts (9) with the junction point of the second cylinder body (7), is provided with end cover (8) between the first cylinder body (6) and the second cylinder body (7); Described cylinder tail (2) and guide sleeve (3) are separately positioned on the two ends of cylinder barrel (1), and cylinder tail (2), guide sleeve (3) are connected with cylinder barrel (1) respectively by screw; Slide in described cylinder barrel (1) and be provided with piston (4), piston packing (12) is provided with between piston (4) and cylinder barrel (1) inwall, tapped hole is provided with in piston (4), piston rod (5) is fixed on piston (4) by tapped hole, is provided with O RunddichtringO (13) between piston rod (5) and piston (4); The right-hand member of described piston rod (5) is through guide sleeve (3), this special seal (14) is provided with between piston rod (5) and guide sleeve (3), be fixed with dust ring (15) at the right-hand member start-up portion of guide sleeve (3), and piston rod (5) is through dust ring (15); Offer in described piston rod (5) and passage (10) is installed.
2. the hydraulic jack of a kind of high leak tightness according to claim 1, is characterized in that: described cylinder tail (2) and cylinder barrel (1) are respectively arranged with oilhole.
3. the hydraulic jack of a kind of high leak tightness according to claim 1, is characterized in that: the width of described piston packing (12) is 3 ~ 5mm.
4. the hydraulic jack of a kind of high leak tightness according to claim 1, is characterized in that: the right-hand member of described piston rod (5) is installed with earrings (11).
5. the hydraulic jack of a kind of high leak tightness according to claim 1, is characterized in that: the diameter of described installation passage (10) is 1/3 ~ 1/2 of the diameter of piston rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420586470.6U CN204152889U (en) | 2014-10-11 | 2014-10-11 | A kind of hydraulic jack of high leak tightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420586470.6U CN204152889U (en) | 2014-10-11 | 2014-10-11 | A kind of hydraulic jack of high leak tightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204152889U true CN204152889U (en) | 2015-02-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420586470.6U Expired - Fee Related CN204152889U (en) | 2014-10-11 | 2014-10-11 | A kind of hydraulic jack of high leak tightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204152889U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104727006A (en) * | 2015-04-14 | 2015-06-24 | 刘青建 | Hydraulic type springback device of loom |
| CN110185675A (en) * | 2019-06-24 | 2019-08-30 | 新余钢铁股份有限公司 | A kind of hydraulic cylinder piston drive end bearing bracket sealing structure |
-
2014
- 2014-10-11 CN CN201420586470.6U patent/CN204152889U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104727006A (en) * | 2015-04-14 | 2015-06-24 | 刘青建 | Hydraulic type springback device of loom |
| CN110185675A (en) * | 2019-06-24 | 2019-08-30 | 新余钢铁股份有限公司 | A kind of hydraulic cylinder piston drive end bearing bracket sealing structure |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20191011 |