CN205260489U - A hinge joint anti loosening structure for pneumatic cylinder - Google Patents
A hinge joint anti loosening structure for pneumatic cylinder Download PDFInfo
- Publication number
- CN205260489U CN205260489U CN201520883665.1U CN201520883665U CN205260489U CN 205260489 U CN205260489 U CN 205260489U CN 201520883665 U CN201520883665 U CN 201520883665U CN 205260489 U CN205260489 U CN 205260489U
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- CN
- China
- Prior art keywords
- piston
- steel ball
- piston rod
- locking steel
- hydraulic cylinder
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- Expired - Fee Related
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Abstract
The utility model discloses a hinge joint anti loosening structure for pneumatic cylinder, it includes piston rod, cylinder and piston, the piston rod inserts in the cylinder, the piston pass through the helicitic texture connect in on the piston rod, the piston with be provided with seal assembly between the inner wall of cylinder, wherein, an annular has been seted up on the piston rod, be provided with a locking steel ball in the annular, locking the steel ball by set up in the tip locking Assembly of piston is fixed. Above -mentioned a hinge joint anti loosening structure for pneumatic cylinder will rub lockingly and mechanical locking combination is in the same place, not only have the high advantage of mechanical locking fail safe nature, simultaneously, have advantages such as the locking dismantlement of friction convenience again, and its installation, maintenance change are convenient for operate.
Description
Technical field
The utility model relates to a kind of hydraulic cylinder, relates in particular to a kind of knot of the piston connection anti-loose for hydraulic cylinderStructure.
Background technology
At present, the piston of existing hydraulic cylinder adopts helicitic texture to be connected on piston rod more, this connection sideFormula, in hydraulic cylinder works process, often occurs that piston gets loose, and affects the normal use of hydraulic cylinder.
Utility model content
The purpose of this utility model is to provide a kind of piston connection anti-loose structure for hydraulic cylinder, its structureSimple and guarantee the feature that piston does not get loose, to solve the piston coupling structure for hydraulic cylinder in prior artThe problems referred to above that exist.
For reaching this object, the utility model by the following technical solutions:
For a piston connection anti-loose structure for hydraulic cylinder, it comprises piston rod, cylinder barrel and piston, described inPiston rod inserts in described cylinder barrel, and described piston is connected on described piston rod by helicitic texture, described workBetween plug and the inwall of described cylinder barrel, be provided with black box, wherein, on described piston rod, offer an annular groove,In described annular groove, be provided with a locking steel ball, described locking steel ball is by the end locking group that is arranged at described pistonPart is fixed.
Especially, the center eccentric setting of described locking steel ball and described piston rod.
Especially, the two side of described annular groove has the friction angle of wedge for location that locking steel ball is rubbed.
Especially, described latch assembly comprises that corresponding locking steel ball position is opened in the spiral shell of the end of described pistonPit, is provided with trip bolt in described screwed hole, and after described trip bolt screws in screwed hole, its end holds out againstDescribed locking steel ball.
Especially, described black box is close by rectangular seal, v-ring, O-ring seals and Y shapeSeal combines.
The beneficial effects of the utility model are, compared with prior art the described piston connection anti-loose for hydraulic cylinderStructure is locking and mechanical locking combining by friction, not only has high excellent of mechanical locking security reliabilityPoint, meanwhile, has again the advantages such as the locking convenient disassembly of friction, and convenient operation is changed in its installation, maintenance.
Brief description of the drawings
Fig. 1 is the piston connection anti-loose structure for hydraulic cylinder that the utility model detailed description of the invention 1 providesStructural representation;
Fig. 2 be in Fig. 1 A-A to profile.
In figure:
1, piston rod; 2, cylinder barrel; 3, piston; 4, annular groove; 5, locking steel ball; 6, screwed hole; 7,Trip bolt; 8, black box.
Detailed description of the invention
Further illustrate the technical solution of the utility model below in conjunction with accompanying drawing and by detailed description of the invention.
Refer to shown in Fig. 1 and Fig. 2, in the present embodiment, a kind of knot of the piston connection anti-loose for hydraulic cylinderStructure comprises piston rod 1, cylinder barrel 2 and piston 3, and described piston rod 1 inserts in described cylinder barrel 2, described piston3 are connected on described piston rod 1 by helicitic texture, offer an annular groove 4 on described piston rod 1, described inIn annular groove 4, be provided with a locking steel ball 5, described locking steel ball 5 is locked by the end that is arranged at described piston 3Assembly is fixed. Described latch assembly comprises that corresponding locking steel ball 5 positions are opened in the end of described piston 3Screwed hole 6, is provided with trip bolt 7 in described screwed hole 6, and described trip bolt 7 screws in after screwed hole 6Its end holds out against described locking steel ball 5.
The center eccentric setting of described locking steel ball 5 and described piston rod 1, the two side tool of described annular groove 4Be useful on to locking steel ball 5 rub locate the friction angle of wedge.
Between described piston 3 and the inwall of described cylinder barrel 2, be provided with black box 8, described black box 8 byRectangular seal, v-ring, O-ring seals and y-shaped ring are according to certain spread pattern combinationForm. Certainly also can carry out different spread patterns by the sealing ring of multiple other types combines.
Above embodiment has just set forth general principle of the present utility model and characteristic, and the utility model is not subject toState example restriction, do not departing under the prerequisite of the utility model spirit and scope, the utility model is various in additionChange and change, these variations and change all fall within the scope of claimed the utility model. This practicality is newThe claimed scope of type is defined by appending claims and equivalent thereof.
Claims (5)
1. for a piston connection anti-loose structure for hydraulic cylinder, it comprises piston rod, cylinder barrel and piston, instituteState piston rod and insert in described cylinder barrel, described piston is connected on described piston rod by helicitic texture, described inBetween piston and the inwall of described cylinder barrel, be provided with black box, it is characterized in that, on described piston rod, offerHave an annular groove, be provided with a locking steel ball in described annular groove, described locking steel ball is by being arranged at described pistonEnd latch assembly is fixed.
2. the piston connection anti-loose structure for hydraulic cylinder according to claim 1, is characterized in that,The center eccentric setting of described locking steel ball and described piston rod.
3. the piston connection anti-loose structure for hydraulic cylinder according to claim 1, is characterized in that,The two side of described annular groove has the friction angle of wedge for location that locking steel ball is rubbed.
4. the piston connection anti-loose structure for hydraulic cylinder according to claim 1, is characterized in that,Described latch assembly comprises that corresponding locking steel ball position is opened in the screwed hole of the end of described piston, described spiral shellIn pit, be provided with trip bolt, after described trip bolt screws in screwed hole, its end holds out against described locking steel ball.
5. the piston connection anti-loose structure for hydraulic cylinder according to claim 1, is characterized in that,Described black box is combined by rectangular seal, v-ring, O-ring seals and y-shaped ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520883665.1U CN205260489U (en) | 2015-11-09 | 2015-11-09 | A hinge joint anti loosening structure for pneumatic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520883665.1U CN205260489U (en) | 2015-11-09 | 2015-11-09 | A hinge joint anti loosening structure for pneumatic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205260489U true CN205260489U (en) | 2016-05-25 |
Family
ID=56002019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520883665.1U Expired - Fee Related CN205260489U (en) | 2015-11-09 | 2015-11-09 | A hinge joint anti loosening structure for pneumatic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205260489U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257626A (en) * | 2015-11-09 | 2016-01-20 | 无锡市长江液压缸厂 | Piston connection anti-looseness structure used for hydraulic cylinder |
-
2015
- 2015-11-09 CN CN201520883665.1U patent/CN205260489U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257626A (en) * | 2015-11-09 | 2016-01-20 | 无锡市长江液压缸厂 | Piston connection anti-looseness structure used for hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Huishan Yanqiao street Changan 214177 West Street in Jiangsu city of Wuxi Province, No. 29 Patentee after: WUXI CHANGJIANG HYDRAULIC CYLINDER Co.,Ltd. Address before: Huishan Yanqiao street Changan 214177 West Street in Jiangsu city of Wuxi Province, No. 29 Patentee before: Wuxi Changjiang Hydraulic Cylinder Factory |
|
| 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: 20160525 Termination date: 20211109 |