CN204533035U - A kind of times strength cylinder - Google Patents
A kind of times strength cylinder Download PDFInfo
- Publication number
- CN204533035U CN204533035U CN201520136539.XU CN201520136539U CN204533035U CN 204533035 U CN204533035 U CN 204533035U CN 201520136539 U CN201520136539 U CN 201520136539U CN 204533035 U CN204533035 U CN 204533035U
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- China
- Prior art keywords
- piston
- middle cover
- cylinder
- protecgulum
- cylinder barrel
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Abstract
The disclosed a kind of times strength cylinder of the utility model, comprise protecgulum, middle cover and bonnet, protecgulum and bonnet are all set to cube structure, the first cylinder barrel is provided with between protecgulum and middle cover, the second cylinder barrel is provided with between middle cover and bonnet, first piston is provided with in first cylinder barrel, first piston is provided with first piston bar, the second piston is provided with in second cylinder barrel, second piston is provided with the second piston rod, the front end of the second piston rod is passed middle cover and is fixedly connected with first piston bar, second piston rod and first piston secure fit, middle cover is set to discoid, and middle cover, the maximum diameter of the first cylinder barrel and the second cylinder barrel is all equal, protecgulum is fixedly connected with by pull bar with bonnet.The utility model is simple and reasonable, assembling is quick, installation precision is higher, easy to use.
Description
Technical field
The utility model relates to pneumatic element technical field, particularly one times strength cylinder.
Background technique
Times strength cylinder is mutually formed by stacking by multilayer piston, exerts oneself as multiple increases, have large advantage of exerting oneself, be applicable to short stroke high output without oil operation occasion.Times strength cylinder is of a great variety, and two times of strength cylinders are one kind of.Two times of common on the market at present strength cylinders, its structure generally includes protecgulum, middle cover and bonnet, protecgulum, bonnet and middle cover are cube structure, in cover and be provided with four mounting holes, when assembling, protecgulum and bonnet are respectively arranged with four and the corresponding mounting hole pull bar one to one, be threaded connection fixing between pull bar and the corresponding mounting hole, the first cylinder barrel is provided with between protecgulum and middle cover, the second cylinder barrel is provided with between middle cover and bonnet, first piston is provided with in first cylinder barrel, first piston is provided with first piston bar, the front end of first piston bar is passed protecgulum and is stretched out in the outside of the first cylinder barrel, the second piston is provided with in second cylinder barrel, second piston is provided with the second piston rod, the front end of the second piston rod is passed middle cover and is fixedly connected with first piston, protecgulum is provided with the first pore be communicated with the first inner cavity of cylinder, in cover the second pore being respectively arranged with and being communicated with the first inner cavity of cylinder, the 3rd pore be communicated with the second inner cavity of cylinder, bonnet is provided with the 4th pore be communicated with the second inner cavity of cylinder.During work, when being filled with pressurized gas in the second pore and the 4th pore, first piston bar stretches out; When being filled with pressurized gas in the first pore and the 3rd pore, first piston bar is retracted.
But, above-mentioned two times of strength cylinders are owing to being set to cube structure by middle cover, cause there is following defect in practical set process: first, be difficult to ensure that the degree of depth that every bar pull bar enters in the corresponding mounting hole is all consistent when assembling, this just makes the axis of the axis of middle cover and cylinder inconsistent, affect the installation precision of cylinder, therefore, assembler needs constantly to repeat following operation: measure the distance between each angle of middle cover and protecgulum (or bonnet) end face on the one hand, on the other hand the number of turns that each pull bar rotates is adjusted, but even if the consistent of middle cover axis and cylinder-bore axis can not be ensured so completely, the quality of product is caused to ensure, the second, due to the second pore and the 3rd pore be all arranged in cover, when needing the position of adjustment second pore and the 3rd pore, must at least 90-degree rotation, cause regulating comparatively inconvenience.In addition, because first piston bar and the second piston rod are all fixed with first piston in said structure, cause the coaxality of first piston bar and the second piston rod to be difficult to ensure, improve the difficulty of assembling.
Model utility content
The purpose of this utility model is defect for prior art and deficiency, provides a kind of simple and reasonable, assembling is quick, installation precision is higher, easy to use times strength cylinder.
For achieving the above object, the utility model is by the following technical solutions:
One described in the utility model times strength cylinder, comprise protecgulum, middle cover and bonnet, described protecgulum and described bonnet are all set to cube structure, the first cylinder barrel is provided with between described protecgulum and described middle cover, the second cylinder barrel is provided with between described middle cover and described bonnet, first piston is provided with in described first cylinder barrel, described first piston is provided with first piston bar, the front end of described first piston bar is passed described protecgulum and is stretched out in the outside of described first cylinder barrel, the second piston is provided with in described second cylinder barrel, described second piston is provided with the second piston rod, described protecgulum is provided with the first pore be communicated with the first inner cavity of cylinder, the second pore being respectively arranged with and being communicated with described first inner cavity of cylinder is covered in described, the 3rd pore be communicated with described second inner cavity of cylinder, described bonnet is provided with the 4th pore be communicated with described second inner cavity of cylinder, the front end of described second piston rod is passed described middle cover and is fixedly connected with described first piston bar, described second piston rod and described first piston secure fit, described middle cover is set to discoid, and described middle cover, the maximum diameter of described first cylinder barrel and described second cylinder barrel is all equal, described protecgulum is fixedly connected with by pull bar with described bonnet.
Further, all axle sleeve is embedded with between described first piston bar and described protecgulum, between described second piston rod and described middle cover.
Further, two end faces of described first piston are provided with annular groove.
Further, described first piston bar is connected with described second piston rod thread.
The beneficial effects of the utility model are: the one that the utility model provides two times of strength cylinders, it is discoid by middle cover is set to, and make the maximum diameter of middle cover, the first cylinder barrel and the second cylinder barrel all equal, compared with prior art, the utility model assemble time pull bar without the need to being connected with middle cover, both reduced installation difficulty, and be also more convenient for ensureing coaxality of the present utility model, make assembly precision higher; In addition, the utility model protecgulum is directly connected by pull bar with bonnet, effectively reduces the quantity of pull bar, reduces processing cost; Because middle cover is set to discoid, arbitrarily can adjust the position of the second pore (or the 3rd pore) during assembling according to the actual requirements, use more convenient.The utility model is by being fixedly connected with first piston bar with the second piston rod, coaxality when making to assemble between first piston bar and the second piston rod is more easily guaranteed, both reduced assembling difficulty, and also effectively improve the precision of assembling and add the difficulty in man-hour.
Accompanying drawing explanation
Fig. 1 is overall sectional view of the present utility model;
Fig. 2 is overall perspective view of the present utility model.
In Fig. 1 and Fig. 2:
1, protecgulum; 11, the first pore; 2, middle cover; 21, the second pore; 22, the 3rd pore; 3, bonnet; 31, the 4th pore; 4, pull bar; 5, the first cylinder barrel; 6, the second cylinder barrel; 7, first piston; 71, first piston bar; 72, be threaded post; 73, annular groove; 8, the second piston; 81, the second piston rod; 9, axle sleeve.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
One times strength cylinder as depicted in figs. 1 and 2, comprise protecgulum 1, middle cover 2 and bonnet 3, protecgulum 1 and bonnet 3 are all set to cube structure, protecgulum 1 is fixedly connected with by pull bar 4 with bonnet 3, the first cylinder barrel 5 is provided with between protecgulum 1 and middle cover 2, be provided with the second cylinder barrel 6 between middle cover 2 and bonnet 3, middle cover 2 is set to discoid, and the maximum diameter of middle cover 2, first cylinder barrel 5 and the second cylinder barrel 6 is all equal.
Compared with prior art, the utility model pull bar 4 when assembling, without the need to being connected with middle cover 2, both reducing installation difficulty, and was also more convenient for ensureing coaxality of the present utility model, makes assembly precision higher; In addition, the utility model protecgulum 1 is directly connected by pull bar 4 with bonnet 3, effectively reduces the quantity of pull bar 4, reduces processing cost; Because middle cover 2 is set to discoid, arbitrarily can adjust the position of the second pore 21 (or the 3rd pore 22) during assembling according to the actual requirements, use more convenient.
First piston 7 is provided with in first cylinder barrel 5, first piston 7 is provided with first piston bar 71, the front end of first piston bar 71 is passed protecgulum 1 and is stretched out in the outside of the first cylinder barrel 5, the second piston 8 is provided with in second cylinder barrel 6, second piston 8 is provided with the second piston rod 81, protecgulum 1 is provided with the first pore 11 with the first cylinder barrel 5 inner space, middle cover 2 is respectively arranged with the second pore 21 with the first cylinder barrel 5 inner space, with the 3rd pore 22 of the second cylinder barrel 6 inner space, bonnet 3 is provided with the 4th pore 31 with the second cylinder barrel 6 inner space, the front end of the second piston rod 81 is passed middle cover 2 and is fixedly connected with first piston bar 71, second piston rod 81 and first piston 7 secure fit, the preferred first piston bar 71 of the utility model is threaded with the second piston rod 81, specifically, the back-end central of first piston bar 71 has been wholely set the post 72 that is threaded, the center, front end of the second piston rod 81 is provided with the tapped hole with post 72 adaptation that is threaded.The utility model is by being fixedly connected with first piston bar 71 with the second piston rod 81, coaxality when making to assemble between first piston bar 71 and the second piston rod 81 is more easily guaranteed, both reduced assembling difficulty, and also effectively improve the precision of assembling and add the difficulty in man-hour.
In order to improve coaxality of the present utility model further, and leading role being played to first piston bar 71 (or second piston rod 81), between first piston bar 71 and protecgulum 1, between the second piston rod 81 and middle cover 2, being all embedded with axle sleeve 9.Two end faces of first piston 7 are provided with annular groove 73, by arranging annular groove 73, while guarantee utility model works performance, had both reduced overall weight of the present utility model, and also having effectively reduced manufacture cost.
The above is only better embodiment of the present utility model, therefore all equivalences done according to structure, feature and the principle described in the utility model patent claim change or modify, and are included in the utility model patent claim.
Claims (4)
1. one kind of times of strength cylinder, comprise protecgulum, middle cover and bonnet, described protecgulum and described bonnet are all set to cube structure, the first cylinder barrel is provided with between described protecgulum and described middle cover, the second cylinder barrel is provided with between described middle cover and described bonnet, first piston is provided with in described first cylinder barrel, described first piston is provided with first piston bar, the front end of described first piston bar is passed described protecgulum and is stretched out in the outside of described first cylinder barrel, the second piston is provided with in described second cylinder barrel, described second piston is provided with the second piston rod, described protecgulum is provided with the first pore be communicated with the first inner cavity of cylinder, the second pore being respectively arranged with and being communicated with described first inner cavity of cylinder is covered in described, the 3rd pore be communicated with described second inner cavity of cylinder, described bonnet is provided with the 4th pore be communicated with described second inner cavity of cylinder, it is characterized in that: the front end of described second piston rod is passed described middle cover and is fixedly connected with described first piston bar, described second piston rod and described first piston secure fit, described middle cover is set to discoid, and described middle cover, the maximum diameter of described first cylinder barrel and described second cylinder barrel is all equal, described protecgulum is fixedly connected with by pull bar with described bonnet.
2. according to claim 1 times of strength cylinder, is characterized in that: be all embedded with axle sleeve between described first piston bar and described protecgulum, between described second piston rod and described middle cover.
3. according to claim 1 times of strength cylinder, is characterized in that: two end faces of described first piston are provided with annular groove.
4. according to claim 1 times of strength cylinder, is characterized in that: described first piston bar is connected with described second piston rod thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520136539.XU CN204533035U (en) | 2015-03-11 | 2015-03-11 | A kind of times strength cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520136539.XU CN204533035U (en) | 2015-03-11 | 2015-03-11 | A kind of times strength cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204533035U true CN204533035U (en) | 2015-08-05 |
Family
ID=53747044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520136539.XU Expired - Fee Related CN204533035U (en) | 2015-03-11 | 2015-03-11 | A kind of times strength cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204533035U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108050130A (en) * | 2017-12-30 | 2018-05-18 | 广东顺德普南气动科技有限公司 | Locking cylinder |
| CN109458375A (en) * | 2018-11-30 | 2019-03-12 | 青岛博泰汽车零部件有限责任公司 | A kind of pneumatic auxiliary supporting device and its application method |
-
2015
- 2015-03-11 CN CN201520136539.XU patent/CN204533035U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108050130A (en) * | 2017-12-30 | 2018-05-18 | 广东顺德普南气动科技有限公司 | Locking cylinder |
| CN109458375A (en) * | 2018-11-30 | 2019-03-12 | 青岛博泰汽车零部件有限责任公司 | A kind of pneumatic auxiliary supporting device and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Xikou town Fenghua District Ji Shan Industrial Park in Zhejiang province Ningbo City Liansheng village 315500 Patentee after: NINGBO QUANSHENG CENTURY PNEUMATIC TECHNOLOGY CO.,LTD. Address before: Fenghua Xikou Industrial Park in Zhejiang province Ningbo City Liansheng village 315500 Patentee before: FENGHUA QUANSHENG AUTOMATION ENGINEERING Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |