CN201896808U - Bidirectional oil hydraulic cylinder - Google Patents
Bidirectional oil hydraulic cylinder Download PDFInfo
- Publication number
- CN201896808U CN201896808U CN2010205970675U CN201020597067U CN201896808U CN 201896808 U CN201896808 U CN 201896808U CN 2010205970675 U CN2010205970675 U CN 2010205970675U CN 201020597067 U CN201020597067 U CN 201020597067U CN 201896808 U CN201896808 U CN 201896808U
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- oil
- cylinder
- annular
- piston rod
- cylinder body
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Abstract
The utility model discloses a bidirectional oil hydraulic cylinder which mainly comprises an outer cylinder body, an inner cylinder body, an oil cylinder base, an oil cylinder upper cover, an oil drain valve, a regulating valve, a piston rod, a piston, an air inlet valve and a plug, wherein the inner cylinder body is sleeved in an inner cavity of the outer cylinder body; the two ends of the outer cylinder body and the inner cylinder body are respectively connected with the inner ends of the oil cylinder base and the oil cylinder upper cover; an annular outer containing cavity is formed between the outer cylinder body and the inner cylinder body; the piston rod and the piston sleeved on the piston rod are sleeved in an inner cavity of the inner cylinder body at intervals; an annular inner containing cavity is formed between the piston rod and the inner cylinder body; the oil drain valve is arranged at the end of the piston rod; an inner oil inlet and an inner oil outlet of an oil inlet channel of the oil cylinder base butt against an oil drain ball on the oil drain valve; and an air inlet channel of the air inlet valve is communicated with the annular outer containing cavity.
Description
Technical field
The utility model relates to a kind of hydraulic element, particularly relates to a kind of two-way oil hydraulic cylinder.
Background technique
Oil cylinder is the straight line moving type executive component that the pressure reduction on ouput force and piston effective area and both sides thereof is directly proportional, in engineering mechanical device, extensively be used, in fitness equipments, also use oil cylinder as the damping member that resistance is provided, but the technical requirements to oil cylinder in the fitness equipments is different, in order to adapt to day by day more and more fitness equipments, need design a kind of oil hydraulic cylinder that is easy to regulate oil pressure.
The model utility content
The purpose of this utility model is to provide a kind of two-way oil hydraulic cylinder that is easy to regulate oil pressure.
For achieving the above object, technical solution of the present utility model is:
The utility model is a kind of two-way oil hydraulic cylinder, and it mainly is made up of outer cylinder body, inner cylinder body, cylinder pedestal, oil cylinder loam cake, oil drain valve, modulating valve, piston rod, piston, suction valve, guiding device; Described inner cylinder body is nested with inner chamber of cylinder block outside, and the two ends of outer cylinder body, inner cylinder body are connected with the inner of cylinder pedestal, oil cylinder loam cake all respectively, forms holding cavity outside the annular between outer cylinder body and inner cylinder body; Described guiding device is nested with in the oil cylinder loam cake; Described piston sleeve is connected on an end of piston rod, piston rod is nested with at the inner cylinder body inner chamber together with the piston clearance of socket on it, between piston rod and inner cylinder body, form holding cavity in the annular, in the counterbore of this end end of piston rod oil drain valve is installed, the other end activity of piston rod is passed the plug endoporus and is stretched out oil cylinder loam cake exterior edge face; Offer oil inlet passage in cylinder pedestal, the interior oil inlet and outlet of this oil inlet passage communicates with holding cavity in the annular and leans with draining ball on the oil drain valve that is installed in tailpiece of the piston rod, and the outer oil inlet and outlet of oil inlet passage communicates with annular outer holding cavity; Described suction valve radially be nested with on oil cylinder, cover and the gas-entered passageway on it with the annular outside holding cavity communicate.
Described oil drain valve mainly is made up of ball cover, draining ball, spring, fixing frame, valve body; Described valve body is the counterbore on the piston rod rod end, and described fixing frame is set in the spring housing, and spring is nested with in counterbore, and the two ends of spring lean respectively in draining ball and counterbore bottom, and ball cover is socketed in outside the draining ball.
Described modulating valve mainly is made up of adjusting air pressure knob handle, adjusting knob, valve body; The through hole of described valve body for radially offering along the oil cylinder loam cake, on oil cylinder, cover two oily passages of turnover offering respectively with annular in holding cavity, annular outside holding cavity communicate; The inner activity of described adjusting knob is arranged in the through hole of oil cylinder loam cake, the outer end of adjusting knob is connected with adjusting air pressure knob handle, the inner at adjusting knob radially offers oil duct, covers on the import and export of this oil duct and the oil cylinder that two oily passages of turnover offering are relative also can to form dislocation.
Described suction valve comprises the gentle seat of gas seat cap; Cover on oil cylinder and offer the gas seat hole that air feed seat cap and gas seat penetrate, this gas seat hole communicates with the outer holding cavity of annular, and described gas seat, gas seat cap are placed through in this gas seat hole successively.
The oil inlet passage of described cylinder pedestal is provided with the nut with oil inlet passage, is provided with the collar and seal washer in regular turn on the interior oil inlet and outlet of cylinder pedestal oil inlet passage, and the sealing packing ring can lean with the draining ball on the oil drain valve.
The holding cavity place of communicating is provided with sleeve pipe outside the gas-entered passageway of suction valve and annular.
After adopting such scheme, because the utility model mainly is made up of outer cylinder body, inner cylinder body, cylinder pedestal, oil cylinder loam cake, modulating valve, oil drain valve, suction valve etc., can import gas to cylinder cavity by suction valve, can regulate in-oil cylinder oil pressure easily by modulating valve.
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Description of drawings
Fig. 1 is an axonometric drawing of the present utility model;
Fig. 2 is a plan view of the present utility model;
Fig. 3 is a side view of the present utility model;
Fig. 4 is a three-dimensional exploded view of the present utility model;
Fig. 5 is a sectional view of the present utility model;
Fig. 6 is the sectional view of the utility model suction valve.
Embodiment
As Fig. 1-shown in Figure 5, the utility model is a kind of two-way oil hydraulic cylinder, and it mainly is made up of outer cylinder body 1, inner cylinder body 2, cylinder pedestal 3, oil cylinder loam cake 4, oil drain valve 5, modulating valve 6, piston rod 7, piston 8, suction valve 9, guiding device 10.
Described inner cylinder body 2 is nested with at outer cylinder body 1 inner chamber, and the two ends of outer cylinder body 1, inner cylinder body 2 are connected with the inner of cylinder pedestal 3, oil cylinder loam cake 4 all respectively.Between outer cylinder body 1 and inner cylinder body 2, form holding cavity 12 outside the annular; Described guiding device 10 is nested with in oil cylinder loam cake 4.
Described piston 8 is socketed in an end of piston rod 7, piston rod 7 is nested with at inner cylinder body 2 inner chambers together with piston 8 gaps of socket on it, between piston rod 7 and inner cylinder body 2, form holding cavity 27 in the annular, oil drain valve 5 is installed in the counterbore 71 of this end end of piston rod 7, and the other end activity of piston rod 7 is passed guiding device 10 endoporus and is stretched out oil cylinder loam cake 4 exterior edge faces.
Offer oil inlet passage 31 in the described cylinder pedestal 3, on the oil inlet passage 31 of cylinder pedestal 3, be bolted with nut 20 with oil inlet passage 201, on the interior oil inlet and outlet of cylinder pedestal 3 oil inlet passages 31, be provided with the collar 32 and seal washer 33 in regular turn and communicate with holding cavity 27 in the annular, sealing packing ring 33 can with the oil drain valve 5 that is installed in piston rod 7 ends on draining ball 52 lean.The outer oil inlet and outlet of oil inlet passage 31 communicates with the outer holding cavity 12 of annular.
Described oil drain valve 5 mainly is made up of ball cover 51, draining ball 52, spring 53, fixing frame 54, valve body 55; Described valve body 55 is the counterbore 71 on piston rod 7 rod ends, and described fixing frame 54 is set in spring 53 covers, and spring 53 is nested with in counterbore 71, and the two ends of spring 53 lean respectively in draining ball 52 and counterbore 71 bottoms, and ball cover 51 is socketed in outside the draining ball 52.
Described modulating valve 6 mainly is made up of adjusting air pressure knob handle 61, adjusting knob 62, valve body 63.The through hole 42 of described valve body 63 for radially offering, the oily passage 43,44 of two of on oil cylinder loam cake 4, offering turnover along oil cylinder loam cake 4 respectively with annular in holding cavity 27, annular outside holding cavity 12 communicate; The inner activity of described adjusting knob 62 is arranged in the through hole 42 of oil cylinder loam cake 4, the outer end of adjusting knob 62 is connected with adjusting air pressure knob handle 61, the inner at adjusting knob 62 radially offers oil duct 621, the turnover oil passage offered on the import and export of this oil duct 621 and the oil cylinder loam cake 4 43 is relative also can to form dislocation, and the size of dislocation has determined the size of damping force provided by the utility model.
As shown in Figure 6, described suction valve 9 comprises gas seat cap 91 gentle seats 92; Radially offer the gas seat hole 45 that air feed seat cap 91 and gas seat 92 penetrate on oil cylinder loam cake 4, this gas seat hole 45 communicates with the outer holding cavity 12 of annular, and described gas seat 92, gas seat cap 91 are placed through in this gas seat hole 45 successively.Holding cavity 12 places of communicating are provided with sleeve pipe 30 outside the gas-entered passageway 41 of suction valve 9 and annular.
Working principle of the present utility model:
As shown in Figure 5, holding cavity 27, oil cylinder loam cake 4 enterprising oil discharge passages 43,44 constitute the oil circuit of a sealing in the oil inlet passage 31 of the outer holding cavity 12 of described annular, cylinder pedestal 3, the annular, on oil cylinder loam cake 4 enterprising oil discharge passages 43,44 modulating valve 6 is set, the outlet port of the oil inlet passage 31 of cylinder pedestal 3 is provided with oil drain valve 5.
When piston rod 7 inwardly compresses, piston rod 7 can the annular content of extruding put the fluid in chamber 27 from the outer holding cavity 12 of oil inlet passage 31, annular of cylinder pedestal 3 through modulating valve 6 enter annular in holding cavity 27, at this moment, modulating valve 6 plays the effect of pressure regulation, has determined the size of damping force that piston rod 7 is provided.
When piston rod 7 was outwards extracted out, piston rod 7 can the annular content of extruding be put fluid holding cavity 12 outside modulating valve 6 enters annular in chamber 27, is entering holding cavity 27 in the annular through the oil inlet passage 31 of cylinder pedestal 3 and the draining ball 52 that backs down on the oil drain valve 5.
The gas-entered passageway 41 of described suction valve 9 communicates with the outer holding cavity 12 of annular, can be by gas-entered passageway 41 holding cavity 12 input gases outside annular of suction valve 9, to eliminate idle stroke phenomenon in the oil cylinder movement process.
The above, it only is the utility model preferred embodiment, so can not limit the scope that the utility model is implemented with this, i.e. the equivalence of doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model patent contains.
Claims (6)
1. two-way oil hydraulic cylinder, it is characterized in that: it mainly is made up of outer cylinder body, inner cylinder body, cylinder pedestal, oil cylinder loam cake, oil drain valve, modulating valve, piston rod, piston, suction valve, guiding device; Described inner cylinder body is nested with inner chamber of cylinder block outside, and the two ends of outer cylinder body, inner cylinder body are connected with the inner of cylinder pedestal, oil cylinder loam cake all respectively, forms holding cavity outside the annular between outer cylinder body and inner cylinder body; Described guiding device is nested with in the oil cylinder loam cake; Described piston sleeve is connected on an end of piston rod, piston rod is nested with at the inner cylinder body inner chamber together with the piston clearance of socket on it, between piston rod and inner cylinder body, form holding cavity in the annular, in the counterbore of this end end of piston rod oil drain valve is installed, the other end activity of piston rod is passed the plug endoporus and is stretched out oil cylinder loam cake exterior edge face; Offer oil inlet passage in cylinder pedestal, the interior oil inlet and outlet of this oil inlet passage communicates with holding cavity in the annular and leans with draining ball on the oil drain valve that is installed in tailpiece of the piston rod, and the outer oil inlet and outlet of oil inlet passage communicates with annular outer holding cavity; Described suction valve radially be nested with on oil cylinder, cover and the gas-entered passageway on it with the annular outside holding cavity communicate.
2. two-way oil hydraulic cylinder according to claim 1 is characterized in that: described oil drain valve mainly is made up of ball cover, draining ball, spring, fixing frame, valve body; Described valve body is the counterbore on the piston rod rod end, and described fixing frame is set in the spring housing, and spring is nested with in counterbore, and the two ends of spring lean respectively in draining ball and counterbore bottom, and ball cover is socketed in outside the draining ball.
3. two-way oil hydraulic cylinder according to claim 1 is characterized in that: described modulating valve mainly is made up of adjusting air pressure knob handle, adjusting knob, valve body; The through hole of described valve body for radially offering along the oil cylinder loam cake, on oil cylinder, cover two oily passages of turnover offering respectively with annular in holding cavity, annular outside holding cavity communicate; The inner activity of described adjusting knob is arranged in the through hole of oil cylinder loam cake, the outer end of adjusting knob is connected with adjusting air pressure knob handle, the inner at adjusting knob radially offers oil duct, covers on the import and export of this oil duct and the oil cylinder that two oily passages of turnover offering are relative also can to form dislocation.
4. two-way oil hydraulic cylinder according to claim 1 is characterized in that: described suction valve comprises the gentle seat of gas seat cap; Cover on oil cylinder and offer the gas seat hole that air feed seat cap and gas seat penetrate, this gas seat hole communicates with the outer holding cavity of annular, and described gas seat, gas seat cap are placed through in this gas seat hole successively.
5. two-way oil hydraulic cylinder according to claim 1, it is characterized in that: the oil inlet passage of described cylinder pedestal is provided with the nut with oil inlet passage, be provided with the collar and seal washer in regular turn on the interior oil inlet and outlet of cylinder pedestal oil inlet passage, the sealing packing ring can lean with the draining ball on the oil drain valve.
6. two-way oil hydraulic cylinder according to claim 1 is characterized in that: the holding cavity place of communicating is provided with sleeve pipe outside the gas-entered passageway of suction valve and annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205970675U CN201896808U (en) | 2010-11-01 | 2010-11-01 | Bidirectional oil hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205970675U CN201896808U (en) | 2010-11-01 | 2010-11-01 | Bidirectional oil hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201896808U true CN201896808U (en) | 2011-07-13 |
Family
ID=44254716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205970675U Expired - Fee Related CN201896808U (en) | 2010-11-01 | 2010-11-01 | Bidirectional oil hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201896808U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533875A (en) * | 2014-12-26 | 2015-04-22 | 随州市双翼隆基机械科技有限公司 | Electric hydraulic oil cylinder |
| CN106086863A (en) * | 2016-08-23 | 2016-11-09 | 孟玲 | Grease chamber's sealing device for oil pressure tool |
| CN107605848A (en) * | 2017-08-24 | 2018-01-19 | 深圳市罗伯医疗科技有限公司 | A kind of hydraulic cylinder and knee joint assistant robot |
| CN108071732A (en) * | 2017-08-24 | 2018-05-25 | 深圳市罗伯医疗科技有限公司 | Adjustable hydraulic formula damper |
-
2010
- 2010-11-01 CN CN2010205970675U patent/CN201896808U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533875A (en) * | 2014-12-26 | 2015-04-22 | 随州市双翼隆基机械科技有限公司 | Electric hydraulic oil cylinder |
| CN106086863A (en) * | 2016-08-23 | 2016-11-09 | 孟玲 | Grease chamber's sealing device for oil pressure tool |
| CN107605848A (en) * | 2017-08-24 | 2018-01-19 | 深圳市罗伯医疗科技有限公司 | A kind of hydraulic cylinder and knee joint assistant robot |
| CN108071732A (en) * | 2017-08-24 | 2018-05-25 | 深圳市罗伯医疗科技有限公司 | Adjustable hydraulic formula damper |
| CN108071732B (en) * | 2017-08-24 | 2020-04-07 | 深圳市罗伯医疗科技有限公司 | Adjustable hydraulic damper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110713 Termination date: 20131101 |