CN209510773U - Internal-circulation type hydraulically extensible cylinder - Google Patents
Internal-circulation type hydraulically extensible cylinder Download PDFInfo
- Publication number
- CN209510773U CN209510773U CN201822253955.4U CN201822253955U CN209510773U CN 209510773 U CN209510773 U CN 209510773U CN 201822253955 U CN201822253955 U CN 201822253955U CN 209510773 U CN209510773 U CN 209510773U
- Authority
- CN
- China
- Prior art keywords
- oil circuit
- oil
- steel ball
- cylinder barrel
- spring
- 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
Landscapes
- Actuator (AREA)
Abstract
The utility model discloses a kind of internal-circulation type hydraulically extensible cylinders, including cylinder barrel, plunger pump, handle, check valve, reversal valve, hydraulic lock and First piston bar；Cylinder barrel is divided into rod chamber and rodless cavity, and in the rod chamber piston motion of cylinder barrel, the side of the rod chamber of cylinder barrel is connected to by plunger with plunger pump First piston bar, and plunger pump free end is connect with handle, and cylinder barrel rod chamber is provided with check valve, reversal valve and hydraulic lock.The utility model is using circulation in hydraulic oil, built in compensator, main body cylinder block material is using high-intensitive aircraft aluminum, embedded inner cylinder tube selection high-quality steel, small in volume, dwell time are long, long-time service is not required to repairing, easy to carry and operation, long service life are not influenced by ambient temperature humidity.
Description
Technical field
The utility model belongs to high-altitude supertension line service technique field, is related to a kind of internal-circulation type hydraulically extensible cylinder.
Background technique
Currently, can all use when porcelain vase is replaced in power construction high altitude operation and arrive fixture and tightening device.Due to conducting wire and
Tension between porcelain vase is larger, and with the raising of voltage class, common lead screw tonnage is inadequate, and laborious, is unable to satisfy and applies
Work requirement；Normal hydraulic cylinder can not pressure maintaining, pressure release is too fast after especially commutating, and the instant impact generated to conducting wire when pressure release is not
Destruction only is generated to shaft tower, more the life security of operator is caused to seriously affect, and cannot effectively control when pressure release
The flexible scale of piston rod.And the oil cylinder volume and weight with pressure maintaining is larger, is essentially all outer circulation type band independence oil sources, takes
With very inconvenient, it is not suitable in high altitude operation.
Summary of the invention
The utility model provides a kind of internal-circulation type hydraulically extensible cylinder, solves existing hydraulic cylinder commutation pressure release instant impact
Shaft tower and personnel are impacted, cannot effectively control the problem of flexible scale of piston rod.
The utility model the technical scheme adopted is that internal-circulation type hydraulically extensible cylinder, including cylinder barrel, plunger pump, handle,
Check valve, reversal valve, hydraulic lock and First piston bar；Cylinder barrel is divided into rod chamber and rodless cavity, and First piston bar is done in cylinder barrel
The side of piston motion, the rod chamber of cylinder barrel is connected to by integrated valve block with plunger pump, and plunger, plunger pump are provided in plunger pump
Free end is connect with handle, and check valve, reversal valve and hydraulic lock are provided in integrated valve block；Check valve pipeline both ends are respectively set
There are the first steel ball and the second steel ball, the first steel ball and check valve pipe ends contact position are provided with the first horizontal spring, unidirectionally
Valve valve port is connected to by the first oil circuit with plunger pump, the check valve pipeline both ends bottom difference where the first steel ball and the second steel ball
It is vertically connected with the second oil circuit and the 4th oil circuit, the second oil communication has the first oil storage tank, and the 4th oil communication has third
Oil storage tank；The tenth oil circuit, the 11st oil circuit, the 12nd oil circuit and the tenth three oil circuits are successively arranged in parallel with inside reversal valve, the
Ten oil circuits are connected to the first oil storage tank, and the tenth three oil circuits are connected to third oil storage tank, are led between the tenth oil circuit and the 11st oil circuit
Connecting pipeline connection is crossed, the connecting pipeline at the 11st oil circuit is provided with spring, and the connecting pipeline at the place of the tenth oil circuit is provided with
The third steel ball contacted with spring, the 12nd oil circuit and the tenth three oil circuits are connected to by connecting pipeline, the company at the tenth three oil circuits
Siphunculus road one end is provided with spring, and the connecting pipeline other end at the 12nd oil circuit is provided with the 4th steel ball contacted with spring,
Reversal valve is provided with reversal valve handle close to the tenth three oil circuits side.
The utility model is further characterized in that,
Hydraulic lock top is provided with the second oil storage tank, and hydraulic lock inside center is provided with the tenth be connected to the second oil storage tank
Five oil circuits are provided with the 5th steel ball at the 15th oil circuit, and one end is provided with second piston bar inside hydraulic lock, and second piston bar is drawn
Outlet and the 5th steel ball end thereof contacts, the hydraulic lock inside other end are provided with second spring, and second spring and the 5th steel ball are another
There is piston on top between end, and hydraulic lock is internally provided with the 14th oil circuit, and the 14th oil circuit passes through the 8th oil circuit and the 12nd oil circuit
Connection.
Further, the 11st oil circuit has been sequentially communicated third oil circuit and the 5th oil circuit, and the 5th oil circuit and the 14th oil circuit connect
Logical, the 5th oil communication has the 7th oil circuit, and the second oil storage tank is communicated with the 6th oil circuit, and the first oil circuit top is communicated with the 9th oil
Road.
Further, the 4th steel ball is located in connecting pipeline closely and diameter is greater than the 12nd oil circuit and the tenth three oil circuits
Diameter, third steel ball is located in connecting pipeline closely and diameter is greater than the diameter of the tenth oil circuit and the 11st oil circuit, the first steel
The diameter of ball and the second steel ball is all larger than the pipeline diameter of check valve.
Further, it is provided with inner cylinder tube in the rod chamber of cylinder barrel, compensator inner cylinder tube is provided in the rodless cavity of cylinder barrel, mends
It repays device inner cylinder tube one end and is provided with gas vent, gas vent is connected with one end of third spring, another end in contact setting of third spring
There is compensator piston, the compensator inner cylinder tube other end is communicated with the 16th oil circuit, the 16th oil circuit and the 9th oil communication.
Further, inner cylinder tube is connect by screw thread with integrated valve block.
The utility model has the beneficial effects that
High-altitude line maintenance for supertension line replaces porcelain vase and various requirement oil cylinder volume weight is small, is convenient for
It carries and operation, distance of stretch out and draw back is controllable and the flexible biggish workplace of strength；
Meet the requirement of power construction high and medium operation, when effectively solving hydraulic cylinder pressure release, instant impact is to shaft tower
And personnel impact；
It can quickly commutate, the flexible scale of piston rod is effectively controlled；
Using recycling in hydraulic oil, built in compensator, main body cylinder block material is using high-intensitive aircraft aluminum, embedded inner casing
Cylinder selects high-quality steel, and small in volume, the dwell time is long, and long-time service is not required to repairing, and easy to carry and operation uses the longevity
Life length, is not influenced by ambient temperature humidity.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described.It should be evident that the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the utility model internal-circulation type hydraulically extensible cylinder.
Fig. 2 is the A-A cross-sectional view of the utility model.
Fig. 3 is the B-B cross-sectional view of the utility model.
Fig. 4 is the C-C cross-sectional view of the utility model.
Fig. 5 is the D-D cross-sectional view of the utility model.
Fig. 6 is the E-E cross-sectional view of the utility model.
Fig. 7 is the F-F cross-sectional view of the utility model.
Fig. 8 is the G-G cross-sectional view of the utility model.
In figure, 1. handles, 2. plunger pumps, 3. check valves, 4. First piston bars, 5. reversal valves, 6. hydraulic locks, 7. cylinder barrels,
8. the first oil circuit, 9. second oil circuits, 10. first oil storage tanks, 11. third oil circuits, 12. the 4th oil circuits, 13. third oil storage tanks, 14.
5th oil circuit, 15. the 6th oil circuits, 16. the 7th oil circuits, 17. the 8th oil circuits, 18. the 9th oil circuits, 19. inner cylinder tubes, 20. pile-up valves
Block；
201. plunger；
301. first steel balls, 302. first springs, 303. second steel balls；
501. the tenth oil circuits, 502. third steel balls, 504. the 11st oil circuits, 505. the 12nd oil circuits, 506. the 4th steel balls,
507. the tenth three oil circuits, 508. reversal valve handles；
601. second springs, 602. pistons, 603. the 5th steel balls, 604. second piston bars, 605. the 14th oil circuits, 606.
Second oil storage tank, 607. the 15th oil circuits；
701. gas vents, 702. third springs, 703. compensator inner cylinder tubes, 704. the 16th oil circuits, 705. compensators are living
Plug.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model internal-circulation type hydraulically extensible cylinder, as Figure 1-Figure 8, including cylinder barrel 7, plunger pump 2, handle 1, list
To valve 3, reversal valve 5, hydraulic lock 6 and First piston bar 4；Cylinder barrel 7 divides for rod chamber and rodless cavity, and First piston bar 4 is in cylinder barrel 7
Piston motion is inside done, the side of the rod chamber of cylinder barrel 7 is connected to by integrated valve block 20 with plunger pump 2, is provided with column in plunger pump 2
Plug 201,2 free end of plunger pump is connect with handle 1, and check valve 3, reversal valve 5 and hydraulic lock 6 are provided in integrated valve block 20；
3 pipeline both ends of check valve are respectively arranged with the first steel ball 301 and the second steel ball 303, the first steel ball 301 and check valve
3 pipe ends contact positions are provided with the first horizontal spring 302, and 3 valve port of check valve is connected to by the first oil circuit 8 with plunger pump 2,
3 pipeline both ends bottom of check valve where first steel ball 301 and the second steel ball 303, which is respectively perpendicular, is communicated with the second oil circuit 9 and the
Four oil circuits 12, the second oil circuit 9 are communicated with the first oil storage tank 10, and the 4th oil circuit 12 is communicated with third oil storage tank 13；
The tenth oil circuit 501, the 11st oil circuit 504, the 12nd oil circuit 505 and are successively arranged in parallel with inside reversal valve 5
Ten three oil circuits 507, the tenth oil circuit 501 are connected to the first oil storage tank 10, and the tenth three oil circuits 507 are connected to third oil storage tank 13, the
It is connected between ten oil circuits 501 and the 11st oil circuit 504 by connecting pipeline, the connecting pipeline at the 11st oil circuit 504 is provided with
Spring, the connecting pipeline at the place of the tenth oil circuit 501 are provided with the third steel ball 502 contacted with spring, the 12nd oil circuit 505 and
Ten three oil circuits 507 are connected to by connecting pipeline, and connecting pipeline one end at the tenth three oil circuits 507 is provided with spring, the 12nd oil
The connecting pipeline other end at road 505 is provided with the 4th steel ball 506 contacted with spring, and reversal valve 5 is close to the tenth three oil circuits 507
Side is provided with reversal valve handle 508.
6 top of hydraulic lock is provided with the second oil storage tank 606, and 6 inside center of hydraulic lock is provided with to be connected with the second oil storage tank 606
The 15th logical oil circuit 607 is provided with the 5th steel ball 603 at the 15th oil circuit 607, and 6 inside one end of hydraulic lock is provided with second
Piston rod 604, the second piston bar 604 pull out end and 603 end thereof contacts of the 5th steel ball, the setting of the 6 inside other end of hydraulic lock
There is second spring 601, there is piston 602 on top between 603 other end of second spring 601 and the 5th steel ball, and hydraulic lock 6 is internally provided with
14th oil circuit 605, the 14th oil circuit 605 are connected to by the 8th oil circuit 17 with the 12nd oil circuit 505.
11st oil circuit 504 has been sequentially communicated third oil circuit 11 and the 5th oil circuit 14, the 5th oil circuit 14 and the 14th oil circuit
605 connections, the 5th oil circuit 14 are communicated with the 7th oil circuit 16, and the second oil storage tank 606 is communicated with the 6th oil circuit 15, the first oil circuit 8 top
End is communicated with the 9th oil circuit 18.
4th steel ball 506 is located in connecting pipeline closely and diameter is greater than the 12nd oil circuit 505 and the tenth three oil circuits 507
Diameter, third steel ball 502 is located in connecting pipeline closely and diameter is greater than the tenth oil circuit 501 and the 11st oil circuit 504
The diameter of diameter, the first steel ball 301 and the second steel ball 303 is all larger than the pipeline diameter of check valve 3.
It is provided with inner cylinder tube 19 in the rod chamber of cylinder barrel 7, compensator inner cylinder tube 703 is provided in the rodless cavity of cylinder barrel 7, mends
It repays 703 one end of device inner cylinder tube and is provided with gas vent 701, gas vent 701 is connected with one end of third spring 702, third spring 702
Another end in contact is provided with compensator piston 705, and 703 other end of compensator inner cylinder tube is communicated with the 16th oil circuit 704, and the 16th
Oil circuit 704 is connected to the 9th oil circuit 18.
Inner cylinder tube 19 is connect by screw thread with integrated valve block 20.
The object that the end of First piston bar 4 and the end of cylinder barrel 7 and needs are stretched or are tightened first by the utility model
Body is firm to link together, and is not limited only to screw thread or hinge connection.Then reversal valve 5 is passed through 508, reversal valve handle
It is pulled according to demand and stretches shelves or shrink shelves, then fluctuate handle 1, keeps the plunger 201 in plunger pump 2 up and down, will
Hydraulic oil is pressed into the rod chamber or rodless cavity of cylinder interior, and piston rod 4 is allowed to carry out stretching motion.The utility model is in hydraulic oil
Intermediate link into cylinder interior joined check valve 3, reversal valve 5 and hydraulic lock 6, so dynamic in the commutation of First piston bar 4
When work biggish impact force will not be generated because of moment pressure release.Piston rod 4 is when fully extended, rodless cavity body in cylinder barrel 7
Product is greater than the volume of the rod chamber in cylinder barrel 7 in complete withdraw of piston rod 4, therefore part hydraulic oil caused by volume differences is just
Compensator piston 705 is pushed by oil circuit 704, is stored in the compensator of cylinder barrel 7.Inner cylinder tube 19 and compensator inner cylinder tube 703
It is all made of steel material, the frictional resistance of piston can be not only effectively reduced using the inner cylinder tube of steel material, moreover it is possible to which improving should
The service life of product, 19 end screw thread of inner cylinder tube and the firm connection of integrated valve block 20.
When stretching shelves, that is, piston rod 4 is protruding, the working principle of all parts and hydraulic oil: hydraulic oil when stretching shelves
It is that rodless cavity is entered by 7 inside rod chamber of cylinder barrel, it is internal in load-carrying working condition in order to illustrate the function of hydraulic lock
Hydraulic oil has certain pressure, and hydraulic oil itself will enter with pressure from the rod chamber inside cylinder barrel 7 by the 6th oil circuit 15
Second oil storage tank 606 of hydraulic lock 6 is flowed by the second oil storage tank 606 to 6 the 15th oil circuit 607 of inside of hydraulic lock.But by
The effect of 601 own resilient of second spring inside hydraulic lock 6 pushes piston 602, and piston 602 withstands the 5th steel ball 603, together
When hydraulic oil pressure act also on above steel ball 603, therefore the 15th oil circuit 607 inside hydraulic lock 6 is by the 5th steel ball 603
It blocks.So hydraulic oil can not enter rodless cavity from rod chamber inside oil cylinder, so that hydraulic lock 6 be made to lock in not swinging handle 1
Firmly the purpose of pressure reaches.When fluctuate handle 1 when, the plunger 201 inside plunger pump 2 moves up and down, and makes 7 inside of cylinder barrel the
Hydraulic oil in one oil circuit 8 pushes the first steel ball 301 inside check valve 3, and the first steel ball 303 is close and squeezes the first spring
302, to allow the first oil circuit 8 to be connected to the second oil circuit 9, then due to the second steel ball 302 between the first oil circuit 8 and the 4th oil circuit 12
Compression blocks.Hydraulic oil enters the first oil storage tank 10 by the second oil circuit 9, enters the inside of reversal valve 5 the from the first oil storage tank 10
Ten oil circuits 501, hydraulic oil push 5 inside third steel ball 502 of reversal valve to roll to compressing at spring, and then make inside reversal valve the
Ten oil circuits 501 are connected to the 11st oil circuit 504, and hydraulic oil flows into third oil circuit 11 by the 11st oil circuit 504, then by third oil
Road 11 flows into the 5th oil circuit 14.14 a portion of the 5th oil circuit is flowed into be directly entered inside cylinder barrel 7 by the 7th oil circuit 16
Rodless cavity pushes First piston bar 4 protruding, and another part hydraulic oil enters the end of hydraulic lock 6 by the 7th oil circuit 16,
Then second piston bar 604 inside hydraulic lock is pushed, second piston bar 604 pushes the 5th steel ball 603, makes internal 15th oil circuit
607 are connected to the second oil storage tank 606, thus open hydraulic lock 6, allow hydraulic oil in 7 inside rod chamber of cylinder barrel by the
Six oil circuits 15 enter the second oil storage tank 606 of hydraulic lock 6, are entered by the second oil storage tank 606 and 607 hydraulic oil of the 15th oil circuit
Rod chamber inside hydraulic lock 6, then the 8th oil circuit 17 is entered by internal 14th oil circuit 605, entered by the 8th oil circuit 17
5 the 12nd oil circuit 505 of inside of reversal valve makes the 12nd oil circuit 505 so that the 4th steel ball 506 be pushed to leave connecting pipeline port
It is connected to the tenth three oil circuits 507.Hydraulic oil enters third oil storage tank 13 by the tenth three oil circuits 507, and hydraulic oil passes through the 4th again
Oil circuit 12 pushes the second steel ball 303 close to the pipeline one end for the check valve 3 for being connected with spring, makes the 4th oil circuit 12, the 9th oil circuit
18 are connected to the first oil circuit 8, and the spring that hydraulic oil flows through the second steel ball 303 at this time enters the first oil circuit 8, therefore forms hydraulic oil
Enter the interior circulation of rodless cavity from 7 inside rod chamber of cylinder barrel.The third spring 702 inside 7 rodless cavity of cylinder barrel is in itself bullet simultaneously
Compensator piston 705 is pushed under the action of power, and the hydraulic oil for being stored in compensator inner cylinder tube 703 is made to pass through the 16th oil circuit 704
Into the 9th oil circuit 18, since the 9th oil circuit 18 has been connected to the first oil circuit 8, so hydraulic oil enters the first oil circuit 8, in this way
It is formed the interior circulation that hydraulic oil enters rodless cavity from 7 inside rod chamber of cylinder barrel.
When shrinking shelves, that is, First piston bar 4 to contract, the course of work of all parts and hydraulic oil: being to shrink now
Shelves, so hydraulic oil is to enter rod chamber by 7 inside rodless cavity of cylinder barrel, pulling reversal valve handle 508 makes reversal valve 5 be in contraction
Shelves.When fluctuate handle 1 when, the plunger 201 inside plunger pump 2 moves up and down, and makes the liquid in 7 the first oil circuit 8 of inside of cylinder barrel
Pressure oil pushes the first steel ball 301 and steel ball 303 inside check valve 3, so that the first oil circuit 8 is allowed to be connected to the second oil circuit 9, first
Then since the compression of the second steel ball 302 blocks between oil circuit 8 and the 4th oil circuit 12.Hydraulic oil enters the first storage by the second oil circuit 9
Oil groove 10 enters the tenth oil circuit 501 of the inside of reversal valve 5 from the first oil storage tank 10, push 5 inside third steel ball 502 of reversal valve to
It is rolled at spring, is connected to 5 the tenth oil circuit 501 of inside of reversal valve with the 11st oil circuit 504.Hydraulic oil passes through the 11st oil circuit
504 flow into third oil circuit 11, then flow into the 5th oil circuit 14 by third oil circuit 11, then pass through 6 the 14th oil circuit of inside of hydraulic lock
605, into the rod chamber of hydraulic lock 6, then push 6 inside second piston bar 604 of hydraulic lock, second piston bar 604 is far from the
Five steel balls 603, while hydraulic oil pushes the 5th steel ball 603, is connected to internal 15th oil circuit 607 with the second oil storage tank 606, this
Sample has turned on hydraulic lock 6, and hydraulic oil is allowed to enter the rod chamber inside cylinder barrel 7 by the second oil storage tank 606 and the 6th oil circuit 15,
Push First piston bar 4 to contract.Extruding of the hydraulic oil inside 7 rodless cavity of cylinder barrel by First piston bar 4 simultaneously, passes through
7th oil circuit 16 enters the 5th oil circuit 14, enters 5 the 12nd oil circuit 505 of inside of reversal valve by the 5th oil circuit 14, pushes the 4th
Steel ball 506 is connected to the 12nd oil circuit 505 with the tenth three oil circuits 507.Hydraulic oil enters third oil by the tenth three oil circuits 507
Slot 13 pushes the second steel ball 303 subsequently into the 4th oil circuit 12, connects the 4th oil circuit 12, the 9th oil circuit 18 and the first oil circuit 8
It is logical, form the interior circulation that hydraulic oil enters rod chamber from 7 inside rodless cavity of cylinder barrel.Then by the hydraulic oil of volume differences generation simultaneously
Enter the 16th oil circuit 704 by the 9th oil circuit 18, then pushes compensator piston 705, be stored in the compensator inner casing of cylinder barrel 7
In cylinder 703.
The utility model can be not only used for supertension line high-altitude line maintenance replacement porcelain vase, and weight small in size
Gently, easy to carry, it is suitble to outdoor study, can be also used for the insurmountable field of the manual lead screw of large-tonnage.With existing product ratio
Compared with more reasonable structure, use scope are more extensive, operation is more flexible, time saving and energy saving.Solves the pressure instability of existing product appearance
Fixed, the dwell time is short, cannot effectively control the distance of stretch out and draw back of piston rod, and it is big that when release leads to the problem of instant impact.
The above is only the preferred embodiment of the utility model only, is not intended to limit the protection model of the utility model
It encloses.Any modification, equivalent substitution, improvement and etc. made within the spirit and principle of the present invention, are all contained in this reality
With in novel protection scope.
Claims (6)
1. internal-circulation type hydraulically extensible cylinder, which is characterized in that including cylinder barrel (7), plunger pump (2), handle (1), check valve (3),
Reversal valve (5), hydraulic lock (6) and First piston bar (4)；The cylinder barrel (7) is divided into rod chamber and rodless cavity, the first piston
Bar (4) does piston motion in cylinder barrel (7), and the side of the rod chamber of the cylinder barrel (7) passes through integrated valve block (20) and plunger pump
(2) it is connected to, is provided with plunger (201) in the plunger pump (2), plunger pump (2) free end is connect with handle (1), described
Check valve (3), reversal valve (5) and hydraulic lock (6) are provided in integrated valve block (20)；
Check valve (3) the pipeline both ends are respectively arranged with the first steel ball (301) and the second steel ball (303), first steel ball
(301) check valve (3) pipe ends contact position is provided with horizontal the first spring (302), check valve (3) valve port passes through
First oil circuit (8) is connected to plunger pump (2), check valve (3) pipe where first steel ball (301) and the second steel ball (303)
Road both ends bottom, which is respectively perpendicular, is communicated with the second oil circuit (9) and the 4th oil circuit (12), and second oil circuit (9) is communicated with the first storage
Oil groove (10), the 4th oil circuit (12) are communicated with third oil storage tank (13)；
The tenth oil circuit (501), the 11st oil circuit (504), the 12nd oil circuit are successively arranged in parallel with inside the reversal valve (5)
(505) it is connected to the tenth three oil circuits (507), the tenth oil circuit (501) with the first oil storage tank (10), the tenth three oil circuits
(507) it is connected to third oil storage tank (13), passes through connecting pipeline between the tenth oil circuit (501) and the 11st oil circuit (504)
It is connected to, the connecting pipeline at the 11st oil circuit (504) is provided with spring, the communicating pipe at the place of the tenth oil circuit (501)
Road is provided with the third steel ball (502) contacted with spring, and the 12nd oil circuit (505) and the tenth three oil circuits (507) pass through company
Lead to pipeline connection, connecting pipeline one end at the tenth three oil circuits (507) is provided with spring, the 12nd oil circuit (505)
The connecting pipeline other end at place is provided with the 4th steel ball (506) contacted with spring, and the reversal valve (5) is close to the tenth three oil circuits
(507) side is provided with reversal valve handle (508).
2. internal-circulation type hydraulically extensible cylinder according to claim 1, which is characterized in that hydraulic lock (6) the top setting
Have the second oil storage tank (606), hydraulic lock (6) inside center is provided with the 15th oil being connected to the second oil storage tank (606)
Road (607), the 5th steel ball (603) is provided at the 15th oil circuit (607), and the internal one end of the hydraulic lock (6) is provided with
Second piston bar (604), the second piston bar (604) pull out end and the 5th steel ball (603) end thereof contacts, the hydraulic lock
(6) the internal other end is provided with second spring (601), is pushed up between the second spring (601) and the 5th steel ball (603) other end
Have piston (602), the hydraulic lock (6) is internally provided with the 14th oil circuit (605), and the 14th oil circuit (605) passes through the
Eight oil circuits (17) are connected to the 12nd oil circuit (505).
3. internal-circulation type hydraulically extensible cylinder according to claim 2, which is characterized in that the 11st oil circuit (504) according to
Secondary to be communicated with third oil circuit (11) and the 5th oil circuit (14), the 5th oil circuit (14) is connected to the 14th oil circuit (605), described
5th oil circuit (14) is communicated with the 7th oil circuit (16), and second oil storage tank (606) is communicated with the 6th oil circuit (15), and described first
Oil circuit (8) top is communicated with the 9th oil circuit (18).
4. internal-circulation type hydraulically extensible cylinder according to claim 2, which is characterized in that the 4th steel ball (506) is located at
In connecting pipeline closely and diameter is greater than the diameter of the 12nd oil circuit (505) and the tenth three oil circuits (507), the third steel ball
(502) it is located in connecting pipeline closely and diameter is greater than the diameter of the tenth oil circuit (501) and the 11st oil circuit (504), it is described
The diameter of first steel ball (301) and the second steel ball (303) is all larger than the pipeline diameter of check valve (3).
5. internal-circulation type hydraulically extensible cylinder according to claim 3, which is characterized in that in the rod chamber of the cylinder barrel (7)
It is provided with inner cylinder tube (19), is provided with compensator inner cylinder tube (703) in the rodless cavity of the cylinder barrel (7), the compensator inner casing
Cylinder (703) one end is provided with gas vent (701), and the gas vent (701) is connected with one end of third spring (702), and described the
Three springs (702) another end in contact is provided with compensator piston (705), and compensator inner cylinder tube (703) other end is communicated with
16th oil circuit (704), the 16th oil circuit (704) are connected to the 9th oil circuit (18).
6. internal-circulation type hydraulically extensible cylinder according to claim 5, which is characterized in that the inner cylinder tube (19) passes through screw thread
It is connect with integrated valve block (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822253955.4U CN209510773U (en) | 2018-12-29 | 2018-12-29 | Internal-circulation type hydraulically extensible cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822253955.4U CN209510773U (en) | 2018-12-29 | 2018-12-29 | Internal-circulation type hydraulically extensible cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209510773U true CN209510773U (en) | 2019-10-18 |
Family
ID=68198485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822253955.4U Expired - Fee Related CN209510773U (en) | 2018-12-29 | 2018-12-29 | Internal-circulation type hydraulically extensible cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209510773U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372823A (en) * | 2018-12-29 | 2019-02-22 | 王斌 | Internal-circulation type hydraulically extensible cylinder |
-
2018
- 2018-12-29 CN CN201822253955.4U patent/CN209510773U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372823A (en) * | 2018-12-29 | 2019-02-22 | 王斌 | Internal-circulation type hydraulically extensible cylinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202829375U (en) | Sequentially-telescopic multistage binding oil cylinder structure | |
| CN209510773U (en) | Internal-circulation type hydraulically extensible cylinder | |
| CN103264071A (en) | Hydraulic barrel shaper | |
| CN109372823A (en) | Internal-circulation type hydraulically extensible cylinder | |
| CN103671008A (en) | Quaternary ultrahigh pressure inflator | |
| CN2169722Y (en) | High effect energy saving pressure increasing device | |
| CN111017785B (en) | Energy-saving hydraulic cylinder for reciprocating lifting | |
| CN203702489U (en) | Fourth-stage ultrahigh-pressure inflator | |
| CN207153784U (en) | A kind of glass retracting device | |
| CN211852373U (en) | Two-stage independent control oil cylinder structure | |
| CN211310658U (en) | Energy-saving hydraulic cylinder for reciprocating lifting action | |
| CN108691853A (en) | A kind of device and method that gravitional force conversion recycles | |
| CN205918692U (en) | Quick type double -acting cylinder | |
| CN213918081U (en) | Spring reset type submarine bolt stretcher | |
| CN208845441U (en) | High-pressure piston type accumulator cylinder body | |
| CN210847407U (en) | High-pressure cold water pneumatic cleaning machine | |
| CN210068402U (en) | Variable plunger pump | |
| CN110627003B (en) | Hydraulic system for lifter | |
| CN107725503A (en) | A kind of oil cylinder structure of hydraulic and hydraulic system with spring assist | |
| CN208565094U (en) | A kind of positive and negative air-pressure conversion equipment | |
| CN209528335U (en) | A kind of controllable type elevating mechanism and its highly controllable up-down furniture | |
| CN209067568U (en) | A kind of new type pressurized cylinder | |
| CN213854443U (en) | Pressurizing device for chlorination chamber | |
| CN208135793U (en) | A kind of open-core type hydraulic jack | |
| CN214583814U (en) | Portable primary and secondary pipe hydraulic source |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191018 Termination date: 20201229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |