CN204200747U - A kind of cylinder - Google Patents
A kind of cylinder Download PDFInfo
- Publication number
- CN204200747U CN204200747U CN201420537916.6U CN201420537916U CN204200747U CN 204200747 U CN204200747 U CN 204200747U CN 201420537916 U CN201420537916 U CN 201420537916U CN 204200747 U CN204200747 U CN 204200747U
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- China
- Prior art keywords
- groove
- piston rod
- protecgulum
- sealing
- annular protrusion
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Abstract
The utility model relates to a kind of cylinder, comprise cylinder barrel, protecgulum, bonnet, piston, piston rod and Sealing, it is characterized in that: piston rod is positioned at cylinder barrel, one end of this piston rod passes protecgulum and arranges, Sealing is provided with between described protecgulum and the outer wall of piston rod, described Sealing comprises seal body, seal body comprises front portion, middle part and rear portion, the inwall of this front portion is provided with the first groove, inwall in the middle part of this is provided with the second groove, the inwall at this rear portion is provided with the 3rd groove; By adopting technique scheme, the seal realizes multi-stage sealed to piston rod, effectively ensure that the sealability between protecgulum and piston rod, and on the inwall of seal body, be provided with the first groove, the second groove and the 3rd groove, when ensure that sealability, decrease the area of contact of Sealing and piston rod, greatly reduce friction factor.
Description
Technical field
The utility model relates to pneumatic apparatus, refers to a kind of cylinder especially.
Background technique
Cylinder is the pneumatic apparatus in a kind of Pneumatic Transmission, the pressure energy of pressurized gas being converted to mechanical energy.Existing cylinder comprises protecgulum, cylinder body and bonnet, protecgulum and bonnet are connected to the two ends of cylinder body, piston rod is provided with in cylinder body, one end of this piston rod passes protecgulum and arranges, and in order to increase the sealability between piston rod and protecgulum, and the cylinder in existing structure, dust-proof effect is realized often through the simple O RunddichtringO increasing routine, thus achieve sealing, only has the sealing effect of individual layer, the seal ring of this conventional structure in use between long time, easy damage, seal ring is made not reach sealing effect, cylinder is caused normally not run, to often keep in repair, unreasonable structure.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of good seal performance, can normally run and the cylinder of long service life.
The technical solution of the utility model is achieved in that a kind of cylinder, comprise cylinder barrel, protecgulum, bonnet, piston, piston rod and Sealing, it is characterized in that: described protecgulum, cylinder barrel and bonnet connect and compose airtight cavity successively, the corner place of described protecgulum is provided with four front through holes, through hole after the corner place of described bonnet is provided with four, four front through holes in this protecgulum corner place and the corresponding setting of through hole after four in the place of bonnet corner, this protecgulum is fixedly connected with by four attachment post structures with bonnet, described protecgulum is also provided with the first pore, described bonnet is also provided with the second pore, this first pore and the second pore conducting cavity respectively, described piston rod is positioned at cylinder barrel, one end of this piston rod passes protecgulum and arranges, the other end of this piston rod is provided with piston, Sealing is provided with between described protecgulum and the outer wall of piston rod, described Sealing comprises seal body, seal body comprises front portion, middle part and rear portion, the diameter at described rear portion and the ratio of anterior diameter are 1.1-1.3, the inwall of this front portion is provided with the first groove, inwall in the middle part of this is provided with the second groove, outer wall in the middle part of this is provided with positioning convex, the inwall at this rear portion is provided with the 3rd groove, the first projection is provided with between this first groove and second groove, the second projection is provided with between second groove and the 3rd groove, the width of the second projection is greater than the width of the first projection, the front end of described front portion is provided with through hole, piston rod is arranged through this through hole, this through hole and piston rod gap are arranged.
By adopting technique scheme, the seal realizes multi-stage sealed to piston rod, effectively ensure that the sealability between protecgulum and piston rod, and the first groove is provided with on the inwall of seal body, second groove and the 3rd groove, when ensure that sealability, decrease the area of contact of Sealing and piston rod, greatly reduce friction factor, ensure that Sealing after a long time use, can not damage easily, need not often keep in repair, achieve cylinder can normally run, improve working life greatly, and the first groove, second groove and the 3rd groove supply the contraction of Sealing to provide surplus, when the first projection and the second projection are by piston rod brought into motion, first projection is moved toward contrary direction with the second protruding meeting, there is rebounding force, piston rod is played to the effect of holding tightly, sealing effect is better.
The utility model is set to further: the first described groove, all seal ring is provided with in second groove and the 3rd groove, sealing loop-shaped size and the first groove, the shape size of the second groove and the 3rd groove is suitable, sealing circle comprises seal ring body, the outer wall of sealing circle body is outwardly arc shape, the inwall of sealing circle body is the arc shaped surface of indent, the edge of sealing circle inner ring is extended with the first annular protrusion and the second annular protrusion to axial two ends, the edge of seal ring outer ring is extended with the 3rd annular protrusion and the 4th annular protrusion to axial two ends, this first annular protrusion and the 3rd annular protrusion form annular groove, this second annular protrusion and the 4th annular convex to form lower annular groove, the end face of the 3rd described annular protrusion is arranged at intervals with buffer stopper, the end face of the 4th annular protrusion is arranged at intervals with lower buffer stopper.
By adopting technique scheme, by three-layer sealed circle, sealing is realized to piston rod, ensure that dust-proof effect, and after long-time use, can not damage easily, need not often keep in repair, topology layout is reasonable, further effectively ensure that again the sealability between protecgulum and piston rod, achieve cylinder can normally run, improve working life greatly, the outer wall of seal ring is arc shape, linear contact lay with the outer wall of piston rod, sealing effect is improve when not increasing frictional force, and the inwall of seal ring is arc shaped surface, sealing circle is made to have elastic force, ensure that the spring-back force of seal ring when stressed, ensure that sealing effect, and annular groove and lower annular groove on arranging on seal ring, effectively add the pliability of sealing circle, spring-back force when making seal ring possess stressed, make the sealability of the seal ring of this structure stronger, upper buffer stopper and lower buffer stopper have buffering surplus, can better bear in movement process, due to the situation that piston rod is out of shape in the frictional force of moving direction to seal ring, ensure that the working life of seal ring.
The utility model is set to further: described seal ring have employed silica gel material and makes.
By adopting technique scheme, the seal ring of this silica gel material can reduce friction factor piston rod being come and gone to operation greatly, thus achieves seal ring when using for a long time, can not damage easily, make cylinder energy proper motion, also improve working life greatly further.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the utility model embodiment structure schematic front view;
Fig. 2 is seal configuration schematic front view in the utility model embodiment;
Fig. 3 is ring structure schematic front view in the utility model embodiment;
Fig. 4 is ring structure cross-sectional schematic in the utility model embodiment;
Fig. 5 is the A portion enlarged view of Fig. 4.
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.
As Figure 1-Figure 5, the utility model discloses a kind of cylinder, comprise cylinder barrel 1, protecgulum 2, bonnet 3, piston 4, piston rod 5 and Sealing 6, in the utility model specific embodiment, described protecgulum 2, cylinder barrel 1 and bonnet 3 connect and compose airtight cavity successively, the corner place of described protecgulum 2 is provided with four front through holes, through hole after the corner place of described bonnet 3 is provided with four, the corresponding setting of through hole after four in four front through holes in this protecgulum 2 four jiaos of places and bonnet 3 four jiaos of places, this protecgulum 2 is fixedly connected with by four attachment post 7 structures with bonnet 3, described protecgulum 2 is also provided with the first pore 21, described bonnet 3 is also provided with the second pore 31, this first pore 21 and the second pore 31 conducting cavity respectively, described piston rod 5 is positioned at cylinder barrel 1, one end of this piston rod 5 passes protecgulum 2 and arranges, the other end of this piston rod 5 is provided with piston 4, Sealing 6 is provided with between described protecgulum 2 and the outer wall of piston rod 5, described Sealing 6 comprises seal body 6, seal body 6 comprises anterior 61, middle part 62 and rear portion 63, the diameter at described rear portion 63 and the ratio of anterior 61 diameters are 1.1-1.3, the inwall of this front portion 61 is provided with the first groove 611, in the middle part of this 62 inwall on be provided with the second groove 621, in the middle part of this 62 outer wall on be provided with positioning convex 622, the inwall at this rear portion 63 is provided with the 3rd groove 631, the first projection 64 is provided with between this first groove 611 and second groove 621, the second projection 65 is provided with between second groove 621 and the 3rd groove 631, the width of the second projection 65 is greater than the width of the first projection 64, the front end of described front portion 61 is provided with through hole 8, piston rod 5 is arranged through this through hole 8, this through hole 8 is arranged with piston rod 5 gap.
By adopting technique scheme, the seal realizes multi-stage sealed to piston rod, effectively ensure that the sealability between protecgulum and piston rod, and the first groove is provided with on the inwall of seal body, second groove and the 3rd groove, when ensure that sealability, decrease the area of contact of Sealing and piston rod, greatly reduce friction factor, ensure that Sealing after a long time use, can not damage easily, need not often keep in repair, achieve cylinder can normally run, improve working life greatly, and the first groove, second groove and the 3rd groove supply the contraction of Sealing to provide surplus, when the first projection and the second projection are by piston rod brought into motion, first projection is moved toward contrary direction with the second protruding meeting, there is rebounding force, piston rod is played to the effect of holding tightly, sealing effect is better.
In the utility model specific embodiment, the first described groove 611, seal ring 9 is all provided with in second groove 621 and the 3rd groove 631, sealing circle 9 shape size and the first groove 611, the shape size of the second groove 621 and the 3rd groove 631 is suitable, sealing circle 9 comprises seal ring body 9, the outer wall of sealing circle body is outwardly arc shape, the inwall of sealing circle body is the arc shaped surface of indent, the edge of sealing circle inner ring is extended with the first annular protrusion 10 and the second annular protrusion 12 to axial two ends, the edge of seal ring outer ring is extended with the 3rd annular protrusion 11 and the 4th annular protrusion 13 to axial two ends, this first annular protrusion 10 and the 3rd annular protrusion 11 form annular groove 14, this second annular protrusion 12 and the 4th annular protrusion 13 form lower annular groove 15, the end face of the 3rd described annular protrusion 11 is arranged at intervals with buffer stopper 16, the end face of the 4th annular protrusion 13 is arranged at intervals with lower buffer stopper 17.
By adopting technique scheme, by three-layer sealed circle, sealing is realized to piston rod, ensure that dust-proof effect, and after long-time use, can not damage easily, need not often keep in repair, topology layout is reasonable, further effectively ensure that again the sealability between protecgulum and piston rod, achieve cylinder can normally run, improve working life greatly, the outer wall of seal ring is arc shape, linear contact lay with the outer wall of piston rod, sealing effect is improve when not increasing frictional force, and the inwall of seal ring is arc shaped surface, sealing circle is made to have elastic force, ensure that the spring-back force of seal ring when stressed, ensure that sealing effect, and annular groove and lower annular groove on arranging on seal ring, effectively add the pliability of sealing circle, spring-back force when making seal ring possess stressed, make the sealability of the seal ring of this structure stronger, upper buffer stopper and lower buffer stopper have buffering surplus, can better bear in movement process, due to the situation that piston rod is out of shape in the frictional force of moving direction to seal ring, ensure that the working life of seal ring.
In the utility model specific embodiment, described seal ring 9 have employed silica gel material and makes.
By adopting technique scheme, the seal ring of this silica gel material can reduce friction factor piston rod being come and gone to operation greatly, thus achieves seal ring when using for a long time, can not damage easily, make cylinder energy proper motion, also improve working life greatly further.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. a cylinder, comprise cylinder barrel, protecgulum, bonnet, piston, piston rod and Sealing, it is characterized in that: described protecgulum, cylinder barrel and bonnet connect and compose airtight cavity successively, the corner place of described protecgulum is provided with four front through holes, through hole after the corner place of described bonnet is provided with four, four front through holes in this protecgulum corner place and the corresponding setting of through hole after four in the place of bonnet corner, this protecgulum is fixedly connected with by four attachment post structures with bonnet, described protecgulum is also provided with the first pore, described bonnet is also provided with the second pore, this first pore and the second pore conducting cavity respectively, described piston rod is positioned at cylinder barrel, one end of this piston rod passes protecgulum and arranges, the other end of this piston rod is provided with piston, Sealing is provided with between described protecgulum and the outer wall of piston rod, described Sealing comprises seal body, seal body comprises front portion, middle part and rear portion, the diameter at described rear portion and the ratio of anterior diameter are 1.1-1.3, the inwall of this front portion is provided with the first groove, inwall in the middle part of this is provided with the second groove, outer wall in the middle part of this is provided with positioning convex, the inwall at this rear portion is provided with the 3rd groove, the first projection is provided with between this first groove and second groove, the second projection is provided with between second groove and the 3rd groove, the width of the second projection is greater than the width of the first projection, the front end of described front portion is provided with through hole, piston rod is arranged through this through hole, this through hole and piston rod gap are arranged.
2. a kind of cylinder according to claim 1, it is characterized in that: the first described groove, all seal ring is provided with in second groove and the 3rd groove, sealing loop-shaped size and the first groove, the shape size of the second groove and the 3rd groove is suitable, sealing circle comprises seal ring body, the outer wall of sealing circle body is outwardly arc shape, the inwall of sealing circle body is the arc shaped surface of indent, the edge of sealing circle inner ring is extended with the first annular protrusion and the second annular protrusion to axial two ends, the edge of seal ring outer ring is extended with the 3rd annular protrusion and the 4th annular protrusion to axial two ends, this first annular protrusion and the 3rd annular protrusion form annular groove, this second annular protrusion and the 4th annular convex to form lower annular groove, the end face of the 3rd described annular protrusion is arranged at intervals with buffer stopper, the end face of the 4th annular protrusion is arranged at intervals with lower buffer stopper.
3. a kind of cylinder according to claim 2, is characterized in that: described seal ring have employed silica gel material and makes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420537916.6U CN204200747U (en) | 2014-09-18 | 2014-09-18 | A kind of cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420537916.6U CN204200747U (en) | 2014-09-18 | 2014-09-18 | A kind of cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204200747U true CN204200747U (en) | 2015-03-11 |
Family
ID=52658711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420537916.6U Expired - Fee Related CN204200747U (en) | 2014-09-18 | 2014-09-18 | A kind of cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204200747U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104960361A (en) * | 2015-06-04 | 2015-10-07 | 贵州天义汽车电器有限公司 | Automatic marking and judging device |
-
2014
- 2014-09-18 CN CN201420537916.6U patent/CN204200747U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104960361A (en) * | 2015-06-04 | 2015-10-07 | 贵州天义汽车电器有限公司 | Automatic marking and judging device |
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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: 20150311 Termination date: 20180918 |