CN104454772A - Oil cylinder cover anti-loosening device - Google Patents
Oil cylinder cover anti-loosening device Download PDFInfo
- Publication number
- CN104454772A CN104454772A CN201410607435.2A CN201410607435A CN104454772A CN 104454772 A CN104454772 A CN 104454772A CN 201410607435 A CN201410607435 A CN 201410607435A CN 104454772 A CN104454772 A CN 104454772A
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- cylinder cover
- barb
- circular groove
- piston rod
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1433—End caps
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention discloses an oil cylinder cover anti-loosening device which comprises a cylinder body, a piston rod and an oil cylinder cover. The end, stretching into the cylinder body, of the oil cylinder cover is provided with an inverted hook device. The inverted hook device comprises an arc-shaped rod and an inverted hook. The arc-shaped rod stretches axially along the oil cylinder cover and is bent towards the middle axis of the oil cylinder cover. One end of the arc-shaped rod is connected with the inverted hook. The other end of the arc-shaped rod is connected with the oil cylinder cover. An annular groove is formed in the cylinder body. The cross section of the annular groove is a right-angled triangle. The position of the annular groove corresponds to the position, generated when the inverted hook device stretches into the cylinder body, of the inverted hook, and the annular groove is matched with the inverted hook. By means of the oil cylinder cover anti-loosening device, the oil cylinder body and the oil cylinder cover can be locked effectively, disassembly and assembly are convenient to conduct, and production safety and normal operation are guaranteed effectively.
Description
Technical field
The present invention relates to a kind of locking device technical field, especially a kind of looseness-proof device for hydrocylinder.
Background technique
Oil cylinder cover is normally threaded with the connection of oil cylinder, internal thread established by oil cylinder, oil cylinder cover establishes outside thread, under the effect of pressure oil, the situation that being threaded between cylinder barrel with cylinder cap likely occurs to loosen and cause cylinder cap to come off, and traditional pin fixed oil cylinder lid and oil cylinder are only fixed on one point, produce larger, once thread looseness can receive larger single force on one point, damage is caused to part.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose a kind of looseness-proof device for hydrocylinder, can effectively oil cylinder and oil cylinder cover be locked, and easy disassembly, effectively ensure that the safety of production and normal operation.
In order to realize foregoing invention object, the invention provides following technological scheme:
A kind of looseness-proof device for hydrocylinder, comprises cylinder body, piston rod and oil cylinder cover, and the end that described oil cylinder cover stretches into described cylinder body is provided with barb apparatus,
Described barb apparatus comprises bow and barb, and described bow axially extends along described oil cylinder cover and bends to described oil cylinder cover location mid-shaft, and described bow one end connects described barb, the other end connects described oil cylinder cover,
In described cylinder body, be provided with circular groove, the cross section of described circular groove is right-angled triangle, and when position and the barb apparatus of described circular groove stretch into described cylinder interior, the position of described barb is corresponding, and described circular groove coordinates with described barb.
Further, a right angle side of the cross section of described circular groove is circular groove opening, another right angle side is arranged near described oil cylinder cover side.
Further, when piston rod stretches in described oil cylinder cover, described bow is close to described piston rod surface towards the face of described piston rod.
A kind of looseness-proof device for hydrocylinder of the present invention, by the design to barb apparatus, effectively by oil cylinder and oil cylinder cover locking, and can facilitate oil cylinder cover dismounting, effectively ensure that the safety of production and normal operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of looseness-proof device for hydrocylinder of the present invention;
Fig. 2 is the schematic diagram that oil cylinder cover of the present invention is connected with barb apparatus.
Embodiment
Describe the present invention below in conjunction with accompanying drawing, the description of this part is only exemplary and explanatory, should not have any restriction to protection scope of the present invention.
A kind of looseness-proof device for hydrocylinder as shown in Figure 1-2, comprises cylinder body 1, piston rod 4 and oil cylinder cover 3, and the end that oil cylinder cover 3 stretches into cylinder body 1 is provided with barb apparatus 2,
Barb apparatus 2 comprises bow 21 and barb 22, and bow 21 axially extends along oil cylinder cover 3 and bends to oil cylinder cover 3 location mid-shaft, and bow 21 one end connects barb 22, the other end connects oil cylinder cover 3,
In cylinder body 1, be provided with circular groove, the cross section of circular groove is right-angled triangle, position and barb 22 device 2 of circular groove stretch into cylinder body 1 inner time barb 22 position corresponding, circular groove coordinates with barb 22.
A right angle side of the cross section of circular groove is circular groove opening, another right angle side is arranged near oil cylinder cover 3 side.Corresponding barb 22 is set to right-angled triangle, and the barb 22 of this right-angled triangle coordinates with circular groove.
When piston rod 4 stretches in oil cylinder cover 3, bow 21 is close to piston rod 4 surface towards the face of piston rod 4.
Barb 22 device 2 arranges four, is uniformly distributed around oil cylinder cover 3 end.Bow 21 utilizes resilient hard material to support.
During use, oil cylinder cover 3 outside thread and cylinder body 1 screw-internal thread fit, oil cylinder cover 3 is installed to cylinder body 1 inner, stretched in described piston rod 4 by piston rod 4, barb 22 is positioned at the position corresponding with circular groove, bow 21 stretches at the support arc lower bar 21 of piston rod 4, barb 22 is stuck in circular groove and realizes the locking of oil cylinder cover 3, when needing oil cylinder cover 3 to dismantle, only piston rod 4 need be withdrawn from, bow 21 bends again, can take off oil cylinder cover 3.
A kind of looseness-proof device for hydrocylinder of the present invention, by the design to barb apparatus, effectively by oil cylinder and oil cylinder cover locking, and can facilitate oil cylinder cover dismounting, effectively ensure that the safety of production and normal operation.
Claims (3)
1. a looseness-proof device for hydrocylinder, is characterized in that, comprises cylinder body, piston rod and oil cylinder cover, and the end that described oil cylinder cover stretches into described cylinder body is provided with barb apparatus,
Described barb apparatus comprises bow and barb, and described bow axially extends along described oil cylinder cover and bends to described oil cylinder cover location mid-shaft, and described bow one end connects described barb, the other end connects described oil cylinder cover,
In described cylinder body, be provided with circular groove, the cross section of described circular groove is right-angled triangle, and when position and the barb apparatus of described circular groove stretch into described cylinder interior, the position of described barb is corresponding, and described circular groove coordinates with described barb.
2. a kind of looseness-proof device for hydrocylinder as claimed in claim 1, is characterized in that, a right angle side of the cross section of described circular groove is circular groove opening, another right angle side is arranged near described oil cylinder cover side.
3. a kind of looseness-proof device for hydrocylinder as claimed in claim 1, it is characterized in that, when piston rod stretches in described oil cylinder cover, described bow is close to described piston rod surface towards the face of described piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410607435.2A CN104454772A (en) | 2014-11-03 | 2014-11-03 | Oil cylinder cover anti-loosening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410607435.2A CN104454772A (en) | 2014-11-03 | 2014-11-03 | Oil cylinder cover anti-loosening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104454772A true CN104454772A (en) | 2015-03-25 |
Family
ID=52901347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410607435.2A Pending CN104454772A (en) | 2014-11-03 | 2014-11-03 | Oil cylinder cover anti-loosening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104454772A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3730808A1 (en) * | 1987-09-14 | 1989-03-23 | Heb Hydraulik Elementebau Gmbh | Locking device for hydraulic or pneumatic working cylinders |
| CN101131170A (en) * | 2006-08-26 | 2008-02-27 | 夏培根 | Gas cylinder or oil cylinder with self-locking device |
| DE202010011199U1 (en) * | 2010-07-12 | 2011-04-14 | Lesch, Nikolaus | External locking of axially moving parts for hydraulic or pneumatic cylinders |
| JP2012047314A (en) * | 2010-08-30 | 2012-03-08 | Ckd Corp | Stroke end locking mechanism of small cylinder |
| CN103307275A (en) * | 2012-03-05 | 2013-09-18 | Svm舒尔茨管理有限责任两合公司 | Locking unit |
| CN203394929U (en) * | 2013-08-23 | 2014-01-15 | 山西平阳重工机械有限责任公司 | Connecting structure for guide sleeve and cylinder tube of hydraulic cylinder |
| CN104088852A (en) * | 2014-06-25 | 2014-10-08 | 长治清华机械厂 | Elastic clamping claw closed automatic locking mechanism for hydraulic cylinder |
-
2014
- 2014-11-03 CN CN201410607435.2A patent/CN104454772A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3730808A1 (en) * | 1987-09-14 | 1989-03-23 | Heb Hydraulik Elementebau Gmbh | Locking device for hydraulic or pneumatic working cylinders |
| CN101131170A (en) * | 2006-08-26 | 2008-02-27 | 夏培根 | Gas cylinder or oil cylinder with self-locking device |
| DE202010011199U1 (en) * | 2010-07-12 | 2011-04-14 | Lesch, Nikolaus | External locking of axially moving parts for hydraulic or pneumatic cylinders |
| JP2012047314A (en) * | 2010-08-30 | 2012-03-08 | Ckd Corp | Stroke end locking mechanism of small cylinder |
| CN103307275A (en) * | 2012-03-05 | 2013-09-18 | Svm舒尔茨管理有限责任两合公司 | Locking unit |
| CN203394929U (en) * | 2013-08-23 | 2014-01-15 | 山西平阳重工机械有限责任公司 | Connecting structure for guide sleeve and cylinder tube of hydraulic cylinder |
| CN104088852A (en) * | 2014-06-25 | 2014-10-08 | 长治清华机械厂 | Elastic clamping claw closed automatic locking mechanism for hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |