CN202646503U - Rotation prevention air spring structure - Google Patents
Rotation prevention air spring structure Download PDFInfo
- Publication number
- CN202646503U CN202646503U CN 201220237173 CN201220237173U CN202646503U CN 202646503 U CN202646503 U CN 202646503U CN 201220237173 CN201220237173 CN 201220237173 CN 201220237173 U CN201220237173 U CN 201220237173U CN 202646503 U CN202646503 U CN 202646503U
- Authority
- CN
- China
- Prior art keywords
- piston
- air spring
- piston rod
- cylinder body
- spring structure
- 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.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model relates to the technical field of air springs, in particular to an air spring structure which can effectively prevent a piston rod from rotating. A rotation prevention air spring structure comprises a cylinder body, a piston, and the piston rod, wherein a rear end cap is arranged at one end of the cylinder body, a first air hole is arranged in the rear end cap, a front end cap is arranged at the other end of the cylinder body, and a second air hole is arranged in the front end cap. The piston is arranged inside the cylinder body in sliding mode. One end of the piston rod penetrates through the front end cap and is fixedly connected with the piston. One end of the piston rod extending out of the front end cap is sleeved with a stop revolving mechanism. The rotation prevention air spring structure has the advantages of being simple in structure, low in production cost, and beneficial for popularization and application.
Description
Technical field
The utility model relates to the air spring technical field, particularly a kind of air spring structure that can prevent effectively that piston rod from rotating.
Background technique
Air spring is as the conventional machinery component unit, and common by people, it is widely used in the every field such as medical apparatus, furniture and auto parts machinery, in the air spring generally with oil, gas or gas mixture as transmission medium.Existing air spring is generally by cylinder body, protecgulum, and bonnet, the piston and the piston rod that are provided with in the cylinder body form, and its piston and piston rod can rotate under the effect of external force, at some in particular cases, the impact of making troubles for the connection of mechanical part.For effectively overcoming this deficiency, many significant explorations have been done in the row, as the inboard wall of cylinder block cross section is provided with polygonal, the cross section of piston also is made as polygonal, although this structure has solved the rotation of piston and piston rod effectively, the production technology complicated, the cost of production first mate improves.
The model utility content
The purpose of this utility model is for the defective of prior art and deficiency, provides a kind of simple in structure, and fabricating cost is low, and can effectively prevent the air spring structure that piston rod rotates.
For achieving the above object, the utility model is by the following technical solutions:
A kind of anti-rotation air spring structure described in the utility model, comprise cylinder body, piston and piston rod, described cylinder body one end is provided with rear end cover, and rear end cover is provided with pore one, and the described cylinder body the other end is provided with front cover, front cover is provided with pore two, described piston slidably is located in the cylinder body, and described piston rod one end passes front cover and is fixedly connected with piston, and described piston rod stretches out on the end of front cover and is arranged with the spline actuation mechanism.
Wherein, described spline actuation mechanism comprises the spline sleeve, and corresponding both sides are respectively equipped with draw-in groove on the described spline sleeve lining, in two draw-in grooves respectively correspondence be provided with through hole and slot; The end that described piston rod stretches out front cover is provided with locating slot, is provided with the spline sheet in the locating slot, and described spline sheet two ends are arranged in two draw-in grooves.
Further, described piston outer wall is provided with wear-resistant strip and C type circle.
Further, described side face of piston ring is provided with crashproof pad.
Further, the inwall of described front cover is provided with dust ring and bearing.
After adopting said structure, the utility model beneficial effect is: piston rod described in the utility model stretches out on the end of front cover and is arranged with the spline actuation mechanism, can prevent effectively that piston rod and piston from rotating in movement process, the deficiency and the defective that have existed in having solved have now been widened the utility model application and application area.The utility model is simple in structure, and fabricating cost is low, is conducive to apply.
Description of drawings
Fig. 1 is sectional structure schematic representation of the present utility model;
Fig. 2 is A-A sectional structure schematic representation among Fig. 1;
Fig. 3 is B-B sectional structure schematic representation among Fig. 1.
Among the figure:
1, rear end cover; 2, pore one; 3, crashproof pad; 4, piston;
5, cylinder body; 6, piston rod; 7, pore two; 8, front cover;
9, dust ring; 10, bearing; 11, spline sleeve; 12, through hole;
13, wear-resistant strip; 14, C type circle; 15, spline sheet; 16, slot;
17, draw-in groove; 18, locating slot.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1 to Figure 3, a kind of anti-rotation air spring structure described in the utility model comprises cylinder body 5, piston 4, and piston rod 6 and spline actuation mechanism, namely above-mentioned several parts consist of the utility model agent structure.
Described cylinder body 5 one ends are provided with rear end cover 1, and rear end cover 1 is provided with pore 1, and pore 1 is used for the utility model is fully lost heart, for piston 4 motions provide power.Described cylinder body 5 the other ends are provided with front cover 8, and front cover 8 is provided with pore 27, and pore 27 effects are identical with pore one 2 effects.
Described piston 4 slidably is located in the cylinder body 5, and described piston rod 6 one ends pass front cover 8 and are fixedly connected with piston 4.Described piston 4 outer walls are provided with wear-resistant strip 13 and C type circle 14, main raising piston 4 wear-resisting propertys of described wear-resistant strip 13; The effect of described C type circle 14 is to avoid piston 4 both sides newspaper gas that the string leakage occurs.
Described piston 4 both ends of the surface are provided with crashproof pad 3, to avoid in movement process and rear end cover 1 and front cover 8 generation strong collision.
The inwall of described front cover 8 is provided with dust ring 9 and bearing 10, and dust ring 9 enters to prevent dust; And bearing 10 is to improve mobility of the present utility model.
Described piston rod 6 stretches out on the end of front cover 8 and is arranged with the spline actuation mechanism, rotates in movement process to prevent piston rod 6 and piston 4.Particularly, described spline actuation mechanism comprises spline sleeve 11, and corresponding both sides are respectively equipped with interior respectively corresponding through hole 12 and the slot 16 of being provided with of 17, two draw-in grooves of draw-in groove 17 on described spline sleeve 11 inwalls; The end that described piston rod 6 stretches out front cover 8 is provided with locating slot 18, is provided with spline sheet 15 in the locating slot 18, and described spline sheet 15 two ends are arranged at respectively in two draw-in grooves 17.
Described spline sheet 15 two ends are located at respectively in two draw-in grooves 17, can prevent effectively that piston rod 6 from rotating in movement process.Spline sheet 15 described in the utility model is after long-time the use, certain wearing and tearing can occur, can cause the location inaccurate, like this, the utility model needs spline sheet 15 is changed, concrete replacing method is as follows: when spline sheet 15 moved to the slot 16 opposite position with piston rod 6, available thimble was by an end of through hole 12 top spline sheets 15, and spline sheet 15 can be extruded from slot 16; After changing new spline sheet 15, get final product from the slot 16 insertion.
The utility model is simple in structure, and is easy to operate, and in terms of existing technologies, fabricating cost first mate reduces, and is conducive to apply.
The above only is preferred embodiments of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (5)
1. anti-rotation air spring structure, comprise cylinder body (5), piston (4) and piston rod (6), described cylinder body (5) one ends are provided with rear end cover (1), rear end cover (1) is provided with pore one (2), described cylinder body (5) the other end is provided with front cover (8), front cover (8) is provided with pore two (7), described piston (4) slidably is located in the cylinder body (5), described piston rod (6) one ends pass front cover (8) and are fixedly connected with piston (4), it is characterized in that: described piston rod (6) stretches out on the end of front cover (8) and is arranged with the spline actuation mechanism.
2. anti-rotation air spring structure according to claim 1, it is characterized in that: described spline actuation mechanism comprises spline sleeve (11), corresponding both sides are respectively equipped with draw-in groove (17) on described spline sleeve (11) inwall, in two draw-in grooves (17) respectively correspondence be provided with through hole (12) and slot (16); The end that described piston rod (6) stretches out front cover (8) is provided with locating slot (18), is provided with spline sheet (15) in the locating slot (18), and described spline sheet (15) two ends are arranged in two draw-in grooves (17).
3. anti-rotation air spring structure according to claim 2, it is characterized in that: described piston (4) outer wall is provided with wear-resistant strip (13) and C type circle (14).
4. anti-rotation air spring structure according to claim 2, it is characterized in that: described piston (4) both ends of the surface are provided with crashproof pad (3).
5. anti-rotation air spring structure according to claim 2, it is characterized in that: the inwall of described front cover (8) is provided with dust ring (9) and bearing (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220237173 CN202646503U (en) | 2012-05-22 | 2012-05-22 | Rotation prevention air spring structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220237173 CN202646503U (en) | 2012-05-22 | 2012-05-22 | Rotation prevention air spring structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646503U true CN202646503U (en) | 2013-01-02 |
Family
ID=47415614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220237173 Withdrawn - After Issue CN202646503U (en) | 2012-05-22 | 2012-05-22 | Rotation prevention air spring structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646503U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720794A (en) * | 2012-05-22 | 2012-10-10 | 毛孟其 | Anti-rotation air spring structure |
| CN104665318A (en) * | 2015-03-18 | 2015-06-03 | 常州市莱特气弹簧有限公司 | Non-rotating lifting gas spring |
-
2012
- 2012-05-22 CN CN 201220237173 patent/CN202646503U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720794A (en) * | 2012-05-22 | 2012-10-10 | 毛孟其 | Anti-rotation air spring structure |
| CN104665318A (en) * | 2015-03-18 | 2015-06-03 | 常州市莱特气弹簧有限公司 | Non-rotating lifting gas spring |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102720794B (en) | Anti-rotation air spring structure | |
| CN203306151U (en) | Direction limiting mechanism for inner and outer tubes of saddle post of bicycle | |
| CN202646503U (en) | Rotation prevention air spring structure | |
| CN201783444U (en) | Pressure roller structure of coating compound machine | |
| CN202251231U (en) | Hydraulic cylinder end cover | |
| CN101781967A (en) | Noiseproof pulley device | |
| CN202144814U (en) | Hydraulic locking cylinder for roller of continuous mill | |
| CN205215564U (en) | Wheelchair is with preventing brake equipment that turns on one's side | |
| CN201858319U (en) | Rotary and linear motion component | |
| CN204711532U (en) | A kind of Press Fit Device for Wheelset | |
| CN202810646U (en) | Drilling machine and forcing mechanism thereof | |
| CN202579750U (en) | Brake mechanism of numerical control turntable | |
| CN205290274U (en) | Mified head | |
| CN201866100U (en) | Eccentric bushing with semi-annual oil grooves | |
| CN201776692U (en) | System for polishing surface of inner hole of shaft sleeve | |
| CN201368088Y (en) | Double-stage constant-thrust oil cylinder | |
| CN203246916U (en) | Passive air expansion shaft stool assembly | |
| CN202040149U (en) | Automatic resetting gas cylinder | |
| CN207131587U (en) | Pump assembly, compressor and air conditioner | |
| CN202125529U (en) | Cross shaft oil seal | |
| CN206209628U (en) | A kind of wear-resisting type mouse roller | |
| CN104226690B (en) | A kind of roll-bending device | |
| CN204585903U (en) | Roller press briquetting hydraulic means and roller press briquetting system | |
| CN203666296U (en) | Double-cylinder proportional damping controlled passenger car articulated system with gear and rack mechanism | |
| CN204344690U (en) | A kind of four-line column roller bearing retainer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130102 Effective date of abandoning: 20140507 |
|
| RGAV | Abandon patent right to avoid regrant |