CN203906435U - Lifting oil cylinder - Google Patents
Lifting oil cylinder Download PDFInfo
- Publication number
- CN203906435U CN203906435U CN201420292558.7U CN201420292558U CN203906435U CN 203906435 U CN203906435 U CN 203906435U CN 201420292558 U CN201420292558 U CN 201420292558U CN 203906435 U CN203906435 U CN 203906435U
- Authority
- CN
- China
- Prior art keywords
- oil
- cylinder
- cylinder barrel
- valve body
- draining
- 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.)
- Expired - Fee Related
Links
- 238000003860 storage Methods 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000003921 oil Substances 0.000 description 75
- 230000004069 differentiation Effects 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Actuator (AREA)
Abstract
A lifting oil cylinder comprises an upper cylinder tube cover, a cylinder tube, a lifting piston rod and a lower cylinder tube cover. The lifting piston rod penetrates through the cylinder tube and penetrates out of the upper cylinder tube cover. The lifting oil cylinder is characterized in that the cylinder tube is arranged in an oil reservoir casing, and an inner cavity of the oil reservoir casing is communicated with an inner cavity of the cylinder tube. A cavity is formed in the lower cylinder tube cover, the cavity is in single-way communication with the inner cavity of the cylinder tube through an oil drain valve body, a piston assembly for pressing oil into the oil reservoir casing in the single direction and a connector interacting with the piston assembly are further arranged in the cavity, a mechanism for opening the oil drain valve body is further arranged on the connector, the connector is fixedly connected with an oil pump pedal shaft, and the connector drives the piston assembly and the oil drain valve body respectively when rotating in double directions.
Description
Technical field
The utility model relates to hoist cylinder, is specifically related to a kind of oil pump, oil cylinder, the integrated hydraulic lifting oil cylinder of oil storage cylinder.
Background technique
Hydraulic jack is widely used in industrial production and medical instruments field, and kind and function are also a lot.Hydraulic jack is generally made up of several parts such as cylinder barrel, piston rod, cylinder cap, piston, Sealings.
Current most hydraulic lifting oil cylinder is an independently cylinder body, need external oil pipe input or emit hydraulic oil and carry out the lifting of control piston bar, the Chinese utility model patent " with the hoist cylinder of correcting parts " that is 201220583219.5 as the patent No. discloses a kind of hoist cylinder that comprises cylinder body, piston rod, piston and oil cylinder head, this hoist cylinder is provided with filler opening and oil outlet, can control the lifting of piston rod after being external on oil pump.For another example the Chinese utility model patent " Self-unlocking hoist cylinder " that the patent No. is 201020545619.8 also discloses a kind of overturning oil cylinder, and this overturning oil cylinder is provided with multiple ozzles and is used for for pressure oil, and pressure oil is provided by external oil pump.So this class hoist cylinder independently cannot use, more inconvenient.In addition, the most volume of current hoist cylinder is larger, is not suitable for using in some small spaces.
Summary of the invention
For deficiency of the prior art, the utility model provides a kind of hoist cylinder, this hoist cylinder compact structure, and volume is small and exquisite, and by oil pump, oil cylinder, oil storage cylinder integrated design, easy to use.
The utility model is achieved through the following technical solutions: a kind of hoist cylinder, comprise cylinder barrel upper cover, cylinder barrel, lifting piston rod, cylinder barrel lower cover, described lifting piston rod is located in described cylinder barrel, and pass described cylinder barrel upper cover, it is characterized in that, described cylinder barrel is placed in oil storage cylinder, and described oil storage cylinder inner chamber communicates with described inner cavity of cylinder, in described cylinder barrel lower cover, be provided with cavity, described cavity is by valve body and the inner cavity of cylinder unilaterally connected of draining the oil, in described cavity, be also provided with for by the unidirectional oil piston assembly of oil storage cylinder and the link acting on mutually with piston assembly of being pressed into, on described link, be also provided with the mechanism of opening the valve body of draining the oil, described link is fixedly connected with oil pump step axle, and when described link Double-directional rotary, drive respectively described piston assembly and the valve body of draining the oil.
The utility model is integrated by oil pump, oil cylinder, oil storage cylinder, does not need impressed pressure oil pump.And oil-feed valve body and the valve body of draining the oil are separated from each other in hoist cylinder of the present utility model, during by oil pump step axle rotating connector, rotate and can carry out oil-feed operation to piston action to a side, make lifting piston rod increase; Rotate to opposite side, can carry out Oil drain operation to the valve body effect of draining the oil, lifting piston rod is declined.By the mode of operation differentiation of rise and fall, operate safelyr, can not meet accident.
As preferably, described in drain the oil valve body comprise drain the oil spool with drain the oil spring, the drain the oil mechanism of valve body of described unlatching is the boss of being located on link.Boss is drained the oil for the jack-up spool of draining the oil.
As preferably, described link acts on the second steel ball and drain the oil spool and piston assembly mutually by the first steel ball respectively.Utilize the lubricity of steel ball rolling friction, be operate more smooth and easy.
As preferably, described link is provided with torsion spring.This torsion spring is for carrying out certain restriction to Oil drain operation, and the resistance that need overcome torsion spring just can be drained the oil, and prevents unexpected generation.
As preferably, the piston cavity in described cylinder barrel lower cover and described oil storage cylinder are by oil-feed valve body and inflow pipeline unilaterally connected.
As preferably, described oil pump step axle is fixed on described link by bearing pin.
As preferably, under described cylinder barrel, be covered with oil drainage hole, and the stopper matching.Conveniently hydraulic oil is changed.
Compared with prior art, the utlity model has following beneficial effect:
The utility model compact structure, volume is small and exquisite, and by oil pump, oil cylinder, oil storage cylinder integrated design, easy to use.
The utility model is the mode of operation differentiation of rise and fall, operates safelyr, can not meet accident.
Brief description of the drawings
Fig. 1 is main pseudosection of the present utility model.
Fig. 2 is side cutaway view of the present utility model.
Fig. 3 is A-A direction sectional view in Fig. 1.
Fig. 4 is the sectional drawing of cylinder barrel lower cover of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described further.
See Fig. 1 and Fig. 2, a kind of hoist cylinder, comprises cylinder barrel upper cover 1, cylinder barrel 2, lifting piston rod 4, cylinder barrel lower cover 5, described lifting piston rod 4 is located in described cylinder barrel 2, and passes described cylinder barrel upper cover 1, described cylinder barrel 1 is placed in oil storage cylinder 3, and described oil storage cylinder 3 inner chambers keep communicating by the first through hole 11 of being located on cylinder barrel upper cover 1 with described cylinder barrel 3 inner chambers, are provided with the second through hole 41 in lifting piston rod 4 lower ends simultaneously, ensure that the oily lower end surface that can enter lifting piston rod 4 is also smoothly by its lifting.
In described cylinder barrel lower cover 5, be provided with cavity, described cavity is by valve body 52 and the cylinder barrel 2 inner chamber unilaterally connecteds of draining the oil, in described cavity, be also provided with for by the unidirectional oil piston assembly 51 of oil storage cylinder 3 and the link 53 acting on mutually with piston assembly 51 of being pressed into, on described link 53, be also provided with the mechanism of opening the valve body 52 of draining the oil, described link 53 is fixedly connected with oil pump step axle 55, and drives respectively described piston assembly 3 and the valve body 52 of draining the oil when described link 53 Double-directional rotary.
See Fig. 3, the piston cavity 511 in described cylinder barrel lower cover 5 and described oil storage cylinder 3 are by oil-feed valve body 57 and inflow pipeline 571 unilaterally connecteds.
See Fig. 4, described in drain the oil valve body 52 comprise drain the oil spool 521 with drain the oil spring 523, the drain the oil mechanism of valve body 52 of described unlatching is the boss 532 of being located on link 53.Described link 53 acts on the second steel ball 531 and drain the oil spool 521 and piston assembly 51 mutually by the first steel ball 522 respectively.On described link 53, be also provided with torsion spring 533.Described oil pump step axle 55 is fixed on described link 53 by bearing pin 56, and the cover plate 59 of described cylinder barrel lower cover 5 bottoms is provided with oil drainage hole, and the stopper 54 matching.
When use, foot pedal makes oil pump step axle 55 repeatedly rotate towards a direction, drive link 53 repeatedly to rotate in the same direction, thereby constantly extrusion piston assembly 51 enters oil pressure in oil storage cylinder 3.In piston assembly 51, also there is individual event passage that oil can be entered in piston cavity 511, and be constantly pressed in oil storage cylinder 3.The oil entering in oil storage cylinder 3 enters in cylinder barrel 2 inner chambers by the first through hole 11, then enters in the second through hole 41, and lifting piston rod 4 is upwards released, and completes lift operations.
Need to decline time, foot pedal rotates backward oil pump step axle 55, and overcome the resistance of torsion spring 533, make boss 532 push the first steel ball 522 and then push the spool 521 of draining the oil, open the valve body 52 of draining the oil, now under Action of Gravity Field, oil falls to making the return trip empty in chamber, and lifting piston rod 4 declines simultaneously, completes step-down operation.
The utility model is the mode of operation differentiation of rise and fall, and the direction of rotating is different, operates safelyr, can not meet accident.
Claims (7)
1. a hoist cylinder, comprise cylinder barrel upper cover (1), cylinder barrel (2), lifting piston rod (4), cylinder barrel lower cover (5), described lifting piston rod (4) is located in described cylinder barrel (2), and pass described cylinder barrel upper cover (1), it is characterized in that, described cylinder barrel (1) is placed in oil storage cylinder (3), and described oil storage cylinder (3) inner chamber communicates with described cylinder barrel (3) inner chamber, in described cylinder barrel lower cover (5), be provided with cavity, described cavity is by the valve body of draining the oil (52) and cylinder barrel (2) inner chamber unilaterally connected, in described cavity, be also provided with for by the unidirectional oil piston assembly (51) of oil storage cylinder (3) and the link (53) acting on mutually with piston assembly (51) of being pressed into, on described link (53), be also provided with the mechanism of opening valve body (52) of draining the oil, described link (53) is fixedly connected with oil pump step axle (55), and when described link (53) Double-directional rotary, drive respectively described piston assembly (3) and the valve body of draining the oil (52).
2. a kind of hoist cylinder according to claim 1, it is characterized in that, the described valve body of draining the oil (52) comprises the spool of draining the oil (521) and the spring (523) of draining the oil, and described unlatching is drained the oil the mechanism of valve body (52) for being located at the boss (532) on link (53).
3. a kind of hoist cylinder according to claim 2, is characterized in that, described link (53) acts on the second steel ball (531) and the spool of draining the oil (521) and piston assembly (51) mutually by the first steel ball (522) respectively.
4. according to a kind of hoist cylinder described in claims 1 to 3 any one, it is characterized in that, described link (53) is provided with torsion spring (533).
5. a kind of hoist cylinder according to claim 4, is characterized in that, the piston cavity (511) in described cylinder barrel lower cover (5) and described oil storage cylinder (3) are by oil-feed valve body (57) and inflow pipeline (571) unilaterally connected.
6. a kind of hoist cylinder according to claim 5, is characterized in that, described oil pump step axle (55) is fixed on described link (53) by bearing pin (56).
7. a kind of hoist cylinder according to claim 6, is characterized in that, described cylinder barrel lower cover (5) is provided with oil drainage hole, and the stopper matching (54).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420292558.7U CN203906435U (en) | 2014-06-04 | 2014-06-04 | Lifting oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420292558.7U CN203906435U (en) | 2014-06-04 | 2014-06-04 | Lifting oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906435U true CN203906435U (en) | 2014-10-29 |
Family
ID=51780718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420292558.7U Expired - Fee Related CN203906435U (en) | 2014-06-04 | 2014-06-04 | Lifting oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906435U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982485A (en) * | 2014-06-04 | 2014-08-13 | 宁波科艺医疗器械有限公司 | Lifting cylinder |
| 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 |
-
2014
- 2014-06-04 CN CN201420292558.7U patent/CN203906435U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982485A (en) * | 2014-06-04 | 2014-08-13 | 宁波科艺医疗器械有限公司 | Lifting cylinder |
| 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 |
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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: 20141029 Termination date: 20180604 |