CN102979781A - Single-acting plunger-type cylinder - Google Patents
Single-acting plunger-type cylinder Download PDFInfo
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- CN102979781A CN102979781A CN2012104916450A CN201210491645A CN102979781A CN 102979781 A CN102979781 A CN 102979781A CN 2012104916450 A CN2012104916450 A CN 2012104916450A CN 201210491645 A CN201210491645 A CN 201210491645A CN 102979781 A CN102979781 A CN 102979781A
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- plunger
- cylinder body
- returnning spring
- cylinder
- cavity
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Abstract
The invention relates to a single-acting plunger-type cylinder, which comprises a cylinder body, an end cover and a plunger. A cavity is arranged in the cylinder body. The end cover is installed on the cylinder body to seal the opening of the cavity. The middle of the plunger is sheathed on the end cover. The tail of the plunger is arranged in the cavity. An air inlet is arranged on the cylinder body and is communicated with the cavity. The single-acting plunger-type cylinder additionally comprises a restoring spring. A holding chamber is excavated in the plunger. An outlet is arranged in the bottom end of the holding chamber and is communicated with the cavity. One end of the restoring spring stretches into the holding chamber through the outlet and is connected with the plunger. The other end of the restoring spring is connected with the cylinder body. When compressed air passes through the air inlet, the plunger is forced to overcome the pulling force of the restoring spring to move upwards and stretch out of the cylinder body to do work outwards; and when the compressed air is stopped from passing through the air inlet, under the effect of the pulling force of the restoring spring, the plunger is forced to move downwards to retract back into the cylinder body. The single-acting plunger-type cylinder has the advantages that the application scope is greatly widened, the use flexibility is higher, the restoring speed of the plunger is faster, the structure is simple and practical and the manufacturing cost is low.
Description
Technical field
The present invention relates to a kind of single-action plunger piston cylinder.
Background technique
The structure of plunger cylinder as depicted in figs. 1 and 2 at present, comprise cylinder body 1a, end cap 2a and plunger 3a, cylinder body 1a inside arranges inner chamber 4a, end cap 2a is installed in the upper opening with inner chamber 4a of cylinder body 1a and seals, plunger 3a middle cover is contained on the end cap 2a, plunger 3a afterbody places cavity 45 the insides, being provided with suction port 5a on the cylinder body 1a is communicated with inner chamber 4a, this kind structure generally all is that pneumatically promotion plunger end face provides power to load 6a, and plunger 3a return is gravity or External Force Acting by load 6a.Major defect: because the plunger return is gravity or External Force Acting by load, be restricted in the use, using scope is little, uses dumb.
Summary of the invention
The object of the present invention is to provide a kind of single-action plunger piston cylinder, when by pressurized air, plunger stretches out cylinder body and externally does work; When the pressurized air, under the pulling force effect of Returnning spring, plunger fast retractile cylinder body enlarges its using scope greatly, uses more flexibly, and reaction velocity is faster, and simple and practical, low cost of manufacture.
Above-mentioned purpose is achieved by the following technical solution:
A kind of single-action plunger piston cylinder, comprise cylinder body, end cap and plunger, cylinder interior arranges inner chamber, the opening that end cap is installed on the cylinder body inner chamber seals, the plunger middle cover is contained on the end cap, plunger tail places the cavity the inside, being provided with suction port on the cylinder body is communicated with inner chamber, it also comprises a Returnning spring in addition, dig out a receiving cavity at plunger, the receiving cavity bottom is provided with outlet and is communicated with inner chamber, and Returnning spring one end extend into the receiving cavity the inside by outlet and is connected with plunger, and the other end of Returnning spring is connected with cylinder body;
When suction port when the pressurized air, force plunger to overcome to move on the pulling force of Returnning spring and stretch out cylinder body and externally do work; When suction port stops by pressurized air, under the pulling force effect of Returnning spring, force plunger to move down retract cylinder.
Pin is installed on the top of receiving cavity described above, plunger mountain, and Returnning spring one end is connected with upper pin, is provided with lower pin at the inwall of intracavity bottom, cylinder body, and the Returnning spring the other end is connected with lower pin.
Between end cap described above and the plunger seal ring is installed.
Described above below seal ring, end cap is equipped with guide pin bushing, the plunger middle cover is in the guide pin bushing the inside.
The present invention compared with prior art has following advantage:
1) plunger return of the present invention need not external force and resets, and greatly enlarges its using scope, uses more flexible; It is pneumatically thrust that plunger stretches out, and the plunger return is that more steady when plunger stretches out, speed is faster during the plunger return by recoil of spring power, and efficient is higher when finishing reciprocal action;
2) spring is arranged on plunger inside, and physical dimension is more simplified when alleviating plunger weight, and is simple and practical, low cost of manufacture.
Description of drawings
The view that Fig. 1 resets for existing plunger cylinder;
The view that Fig. 2 externally does work for existing plunger cylinder;
Fig. 3 is a kind of view of the present invention;
Fig. 4 is another kind of view of the present invention.
Embodiment
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Extremely shown in Figure 4 such as Fig. 3, a kind of single-action plunger piston cylinder, comprise cylinder body 1, end cap 2 and plunger 3, cylinder body 1 inside arranges inner chamber 4, the opening that end cap 2 is installed on the cylinder body 1 inner chamber 4 seals, plunger 3 middle cover are contained on the end cap 2, plunger 3 afterbodys place cavity 4 the insides, being provided with suction port 5 on the cylinder body 1 is communicated with inner chamber 4, it also comprises a Returnning spring 9 in addition, digs out a receiving cavity 8 at plunger 3, and receiving cavity 8 bottoms are provided with outlet 12 and are communicated with inner chamber 4, Returnning spring 9 one ends extend into receiving cavity 8 the insides and are connected with plunger 3 by exporting 12, and the other end of Returnning spring 9 is connected with cylinder body 1;
When suction port 5 during by pressurized air, force plunger 3 to overcome to move on the pulling force of Returnning spring 9 and stretch out cylinder body and externally do work; When suction port 5 stops by pressurized air, under the pulling force effect of Returnning spring 9, force plunger 3 to move down retract cylinder.
Fig. 3 is suction port 5 when stopping by pressurized air, under the pulling force effect of Returnning spring 9, forces plunger 3 to move down the reset condition of retract cylinder; Fig. 4 is suction port 5 during by pressurized air, forces plunger 3 to overcome to move on the pulling force of Returnning spring 9 and stretches out the cylinder body state that externally does work.
Claims (4)
1. single-action plunger piston cylinder, comprise cylinder body, end cap and plunger, cylinder interior arranges inner chamber, the opening that end cap is installed on the cylinder body inner chamber seals, the plunger middle cover is contained on the end cap, plunger tail places the cavity the inside, being provided with suction port on the cylinder body is communicated with inner chamber, it is characterized in that: it also comprises a Returnning spring, dig out a receiving cavity at plunger, the receiving cavity bottom is provided with outlet and is communicated with inner chamber, and Returnning spring one end extend into the receiving cavity the inside by outlet and is connected with plunger, and the other end of Returnning spring is connected with cylinder body;
When suction port when the pressurized air, force plunger to overcome to move on the pulling force of Returnning spring and stretch out cylinder body and externally do work; When suction port stops by pressurized air, under the pulling force effect of Returnning spring, force plunger to move down retract cylinder.
2. according to claims 1 described a kind of single-action plunger piston cylinder, it is characterized in that: pin is installed on the top of receiving cavity, plunger mountain, Returnning spring one end is connected with upper pin, is provided with lower pin at the inwall of intracavity bottom, cylinder body, and the Returnning spring the other end is connected with lower pin.
3. according to claims 1 or 2 described a kind of single-action plunger piston cylinders, it is characterized in that: between end cap and the plunger seal ring is installed.
4. according to claims 1 or 2 described a kind of single-action plunger piston cylinders, it is characterized in that: below seal ring, end cap is equipped with guide pin bushing, the plunger middle cover is in the guide pin bushing the inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104916450A CN102979781A (en) | 2012-11-27 | 2012-11-27 | Single-acting plunger-type cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104916450A CN102979781A (en) | 2012-11-27 | 2012-11-27 | Single-acting plunger-type cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102979781A true CN102979781A (en) | 2013-03-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104916450A Pending CN102979781A (en) | 2012-11-27 | 2012-11-27 | Single-acting plunger-type cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102979781A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015188650A1 (en) * | 2014-06-12 | 2015-12-17 | 苏州劳灵精密机械有限公司 | Hinged inner rod-type fluid drive cylinder |
| CN109322871A (en) * | 2018-11-30 | 2019-02-12 | 湖南协力液压有限公司 | A kind of hydraulic cylinder that can automatically reset |
| CN113530920A (en) * | 2021-06-17 | 2021-10-22 | 北京中金泰达电液科技有限公司 | Stroke limiting structure of hydraulic cylinder |
| WO2022229387A1 (en) * | 2021-04-29 | 2022-11-03 | Ferrobotics Compliant Robot Technology Gmbh | Pneumatic linear actuator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2926258B1 (en) * | 1979-06-29 | 1980-12-04 | Festo Maschf Stoll G | Single acting actuator |
| CN2246205Y (en) * | 1995-12-29 | 1997-01-29 | 上海华光液压超高压技术应用公司 | Long range self-resetting hydrautic oil cylinder |
| CN2436707Y (en) * | 2000-07-29 | 2001-06-27 | 孟庆龙 | Single-action hydraulic cylinder |
| CN2550543Y (en) * | 2002-05-23 | 2003-05-14 | 衡阳市千山制药机械有限公司 | Single function oil cylinder mounted by inner hole |
| CN2937586Y (en) * | 2006-08-16 | 2007-08-22 | 天津市天锻压力机有限公司 | Compound hydraulic cylinder with quick driving device |
| CN202140369U (en) * | 2011-07-05 | 2012-02-08 | 平顶山市碧源科技有限公司 | Single-acting cylinder |
| CN203009446U (en) * | 2012-11-27 | 2013-06-19 | 裕东（中山）机械工程有限公司 | Single-action plunger air cylinder |
-
2012
- 2012-11-27 CN CN2012104916450A patent/CN102979781A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2926258B1 (en) * | 1979-06-29 | 1980-12-04 | Festo Maschf Stoll G | Single acting actuator |
| CN2246205Y (en) * | 1995-12-29 | 1997-01-29 | 上海华光液压超高压技术应用公司 | Long range self-resetting hydrautic oil cylinder |
| CN2436707Y (en) * | 2000-07-29 | 2001-06-27 | 孟庆龙 | Single-action hydraulic cylinder |
| CN2550543Y (en) * | 2002-05-23 | 2003-05-14 | 衡阳市千山制药机械有限公司 | Single function oil cylinder mounted by inner hole |
| CN2937586Y (en) * | 2006-08-16 | 2007-08-22 | 天津市天锻压力机有限公司 | Compound hydraulic cylinder with quick driving device |
| CN202140369U (en) * | 2011-07-05 | 2012-02-08 | 平顶山市碧源科技有限公司 | Single-acting cylinder |
| CN203009446U (en) * | 2012-11-27 | 2013-06-19 | 裕东（中山）机械工程有限公司 | Single-action plunger air cylinder |
Non-Patent Citations (1)
| Title |
|---|
| 盖翁江等: "《精密机械零件》", 30 September 1955, article "螺旋弹簧", pages: 120-123 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015188650A1 (en) * | 2014-06-12 | 2015-12-17 | 苏州劳灵精密机械有限公司 | Hinged inner rod-type fluid drive cylinder |
| DE202015009742U1 (en) | 2014-06-12 | 2019-10-24 | Suzhou Roaring Precision Machinery Co., Ltd. | Fluid drive cylinder of hinged inner rod type |
| CN109322871A (en) * | 2018-11-30 | 2019-02-12 | 湖南协力液压有限公司 | A kind of hydraulic cylinder that can automatically reset |
| WO2022229387A1 (en) * | 2021-04-29 | 2022-11-03 | Ferrobotics Compliant Robot Technology Gmbh | Pneumatic linear actuator |
| CN113530920A (en) * | 2021-06-17 | 2021-10-22 | 北京中金泰达电液科技有限公司 | Stroke limiting structure of hydraulic cylinder |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130320 |