CN220248533U - Novel three-stage lifting oil cylinder for car - Google Patents
Novel three-stage lifting oil cylinder for car Download PDFInfo
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- CN220248533U CN220248533U CN202321521859.8U CN202321521859U CN220248533U CN 220248533 U CN220248533 U CN 220248533U CN 202321521859 U CN202321521859 U CN 202321521859U CN 220248533 U CN220248533 U CN 220248533U
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- 238000007789 sealing Methods 0.000 claims description 28
- 239000003921 oil Substances 0.000 description 34
- 239000010720 hydraulic oil Substances 0.000 description 8
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of oil cylinders, in particular to a novel three-stage lifting oil cylinder for a car, which comprises a cylinder body, wherein a first-stage piston rod is arranged on the inner side of the cylinder body in a sliding manner, a first-stage rod cavity and a first-stage rodless cavity are formed in the cylinder body by the first-stage piston rod, a second-stage piston rod is arranged on the inner side of the first-stage piston rod in a sliding manner, a second-stage rod cavity and a second-stage rodless cavity are formed in the first-stage piston rod by the second-stage piston rod, and a third-stage rod cavity and a third-stage rodless cavity are formed in the second-stage piston rod.
Description
Technical Field
The utility model relates to the technical field of oil cylinders, in particular to a novel three-stage lifting oil cylinder for a car.
Background
The hydraulic cylinder is an executive component in a hydraulic transmission system, and is an energy conversion device for converting hydraulic energy into mechanical energy and used for driving a working mechanism to do linear reciprocating motion or reciprocating swing. Hydraulic cylinders generally include a cylinder barrel and a piston rod assembly including a piston and a piston rod. The piston is fixedly connected to the end part of the piston rod, the outer circumferential surface of the piston is in sliding fit with the inner cavity of the cylinder barrel, the piston divides the inner cavity of the cylinder barrel into a rod cavity and a rodless cavity, and one of the rod cavity or the rodless cavity is filled with oil to push the piston to drive the piston rod to move, so that the piston rod extends out of the cylinder barrel to drive the working mechanism.
The three-stage hydraulic cylinder is arranged in order to realize large stroke in a small enough installation space so as to meet the requirement of a mechanism on the maximum installation distance of the oil cylinder, the running speed of the three-stage hydraulic cylinder is generally limited by the structure and the flow of a hydraulic system, if the speed of the oil cylinder is increased, the oil cylinder and the system are deformed greatly only by increasing the oil inlet diameter of the oil cylinder and the flow of the system, but the deformation of the oil cylinder and the system is large, the system power is increased, the quick running of the oil cylinder is particularly important under the condition of small flow, and at present, the three-stage hydraulic cylinder is mainly in a traditional mode and cannot meet the requirements of high speed, heavy load and small flow, so that the three-stage hydraulic cylinder is inconvenient to use.
Disclosure of Invention
The utility model provides a novel three-stage lifting oil cylinder for a car, which aims to solve the defects of small load and low speed in the prior art.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the novel three-level lifting oil cylinder for the car transporting vehicle comprises a cylinder body, a first-level piston rod is arranged on the inner side of the cylinder body in a sliding mode, a first-level rod cavity and a first-level rodless cavity are formed in the cylinder body through the first-level piston rod, a second-level piston rod is arranged on the inner side of the first-level piston rod in a sliding mode, a second-level rod cavity and a second-level rodless cavity are formed in the first-level piston rod through the second-level piston rod, a third-level piston rod is arranged on the inner side of the second-level piston rod in a sliding mode, a third-level rod cavity and a third-level rodless cavity are formed in the second-level piston rod through the third-level piston rod, an A center hole is formed in the lower side of the first-level piston rod, and a B center hole is formed in the lower side of the second-level piston rod.
Preferably, the cylinder body upside is equipped with one-level cylinder cap, one-level cylinder cap inboard is equipped with A screw hole, one-level cylinder cap passes through A screw hole threaded connection with the cylinder body, one-level cylinder cap inboard is equipped with A sealing washer, one-level piston rod periphery is equipped with a plurality of B sealing washer.
Preferably, the upper side of the primary piston rod is provided with a secondary cylinder cover, the inner side of the secondary cylinder cover is provided with a B threaded hole, the secondary cylinder cover is in threaded connection with the primary piston rod through the B threaded hole, the inner side of the secondary cylinder cover is provided with a C sealing ring, and the periphery of the secondary cylinder cover is provided with a plurality of D sealing rings.
Preferably, the secondary piston rod upside is equipped with tertiary cylinder cap, tertiary cylinder cap inboard is equipped with C screw hole, tertiary cylinder cap and secondary piston rod pass through C screw hole threaded connection, tertiary cylinder cap inboard is equipped with E sealing washer, tertiary cylinder cap periphery is equipped with a plurality of F sealing washer.
Preferably, through holes are formed in the peripheries of the primary piston rod and the secondary piston rod.
Preferably, the cylinder body periphery is equipped with first oil inlet, second oil inlet is equipped with to second level piston rod periphery, first oil inlet and second oil inlet all external oil pipe.
The novel three-stage lifting oil cylinder for the car truck has the beneficial effects that:
(1) Through setting up cylinder body, one-level piston rod, one-level have pole chamber, one-level rodless chamber, second grade piston rod, second grade have pole chamber, second grade rodless chamber, tertiary piston rod, tertiary have pole chamber, tertiary rodless chamber, through-hole, A centre bore, B centre bore, first oil inlet, second oil inlet, oil pipe make it have high-speed, heavy load, the function of low discharge, can make hydraulic system's power reduce, reduce whole hydraulic system's cost.
(2) Through setting up one-level cylinder cap, A screw hole, A sealing washer, B sealing washer, second grade cylinder cap, C screw hole, C sealing washer, D sealing washer, tertiary cylinder cap, C screw hole, E sealing washer, F sealing washer make it have spacing, sealed effect, can make hydro-cylinder structure closely, improve the security.
Drawings
Fig. 1 is a schematic view of a front cut-away perspective structure of a novel three-stage lifting cylinder for a car;
FIG. 2 is a schematic view of the enlarged partial perspective structure of FIG. 1 according to the present utility model
Fig. 3 is a schematic front perspective view of a novel three-stage lifting cylinder for a car.
In the figure: the cylinder comprises a cylinder body, a first-level piston rod, a first-level rod cavity, a first-level rodless cavity, a second-level piston rod, a second-level rod cavity, a second-level rodless cavity, a third-level piston rod, a third-level rod cavity, a third-level rodless cavity, a first-level cylinder cover, a threaded hole, a 13A sealing ring, a 14B sealing ring, a second-level cylinder cover, a 16B threaded hole, a 17C sealing ring, a 18D sealing ring, a third-level cylinder cover, a 20C threaded hole, a 21E sealing ring, a 22F sealing ring, a 23 through hole, a 24A central hole, a 25B central hole, a first oil inlet, a second oil inlet and an oil pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-3, a novel three-stage lifting oil cylinder for a car is provided, hydraulic oil conveyed by an oil pipe 28 enters a first oil inlet 26, and is gradually filled into a first-stage rodless cavity 4 along with the flow of the hydraulic oil, then enters a second-stage rodless cavity 7 along with passing through an A center hole, the second-stage rodless cavity 7 is gradually filled into a third-stage rodless cavity 10, a plurality of B sealing rings are arranged on the periphery of the first-stage piston rod, a plurality of D sealing rings 18 are arranged on the periphery of a second-stage cylinder cover 15, a plurality of F sealing rings 22 are arranged on the periphery of the third-stage cylinder cover 19, so that the hydraulic oil is prevented from entering other chambers, the thrust of the oil cylinder is multiplied by the effective area of a contact surface, so that the pressure of the oil cylinder firstly acts on the first-stage piston rod 2, then acts on the second-stage piston rod 5 and the third-stage piston rod 8 sequentially, and then the piston rod extends out, one side of the first-stage piston rod 2 touches a first-stage cylinder cover 11 along with the extending of the first-stage piston rod 2, the first-stage cylinder cover 11 is in threaded connection with the cylinder body 1 through an A threaded hole 12, the second-stage cylinder cover 15 is in threaded connection with the first-stage cylinder cover 2 through the B threaded hole 16, the third-stage cylinder cover 19 is in threaded connection with the first-stage piston rod 2, and the third-stage piston rod is in threaded connection through the threaded hole 20, and the third-stage piston rod is in threaded connection, and the threaded connection is not in consideration.
The hydraulic oil is fed into the second oil inlet 27 through the oil pipe 28 when the oil cylinder is required to retract after all extending, the hydraulic oil is gradually filled with the first-stage rod cavity 3 along with the flow of the hydraulic oil, the pressure is applied to the first-stage rod cavity 3, the third-stage piston rod 8 is gradually retracted under the action of gravity and hydraulic pressure, the hydraulic oil sequentially enters the second-stage rod cavity 6 and the third-stage rod cavity 9 through the through holes 23, the second-stage piston rod 5 and the first-stage piston rod 2 are gradually retracted, and the hydraulic oil feeding device has the functions of high speed, heavy load, low flow, limiting and sealing through the structure, so that the power of a hydraulic system is reduced, the cost of the whole hydraulic system is reduced, the structure of the oil cylinder is compact, and the safety is improved.
It should be noted that:
the application proposes: the tubing 28 is conventional in the art, and its specific methods of use and functions are not described in detail herein.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The utility model provides a sedan-chair fortune is novel tertiary lift cylinder for car, includes cylinder body (1), its characterized in that, cylinder body (1) inboard slides and is equipped with one-level piston rod (2), one-level piston rod (2) form one-level have pole chamber (3) and one-level rodless chamber (4) in cylinder body (1), one-level piston rod (2) inboard slides and is equipped with second grade piston rod (5), second grade piston rod (5) form second grade have pole chamber (6) and second grade rodless chamber (7) in one-level piston rod (2), second grade piston rod (5) inboard slides and is equipped with tertiary piston rod (8), tertiary piston rod (8) form tertiary have pole chamber (9) and tertiary rodless chamber (10) in second grade piston rod (5), one-level piston rod (2) downside is equipped with A centre bore (24), second grade piston rod (5) downside is equipped with B centre bore (25).
2. The novel three-stage lifting oil cylinder for the car according to claim 1, wherein a first-stage cylinder cover (11) is arranged on the upper side of the cylinder body (1), an A threaded hole (12) is formed in the inner side of the first-stage cylinder cover (11), the first-stage cylinder cover (11) is in threaded connection with the cylinder body (1) through the A threaded hole (12), an A sealing ring (13) is arranged in the inner side of the first-stage cylinder cover (11), and a plurality of B sealing rings (14) are arranged on the periphery of the first-stage piston rod (2).
3. The novel three-stage lifting oil cylinder for the car according to claim 1, wherein a second-stage cylinder cover (15) is arranged on the upper side of the first-stage piston rod (2), a B threaded hole (16) is formed in the inner side of the second-stage cylinder cover (15), the second-stage cylinder cover (15) and the first-stage piston rod (2) are in threaded connection through the B threaded hole (16), a C sealing ring (17) is arranged in the inner side of the second-stage cylinder cover (15), and a plurality of D sealing rings (18) are arranged on the periphery of the second-stage cylinder cover (15).
4. The novel three-stage lifting oil cylinder for the car according to claim 1, wherein a three-stage cylinder cover (19) is arranged on the upper side of the second-stage piston rod (5), a C threaded hole (20) is formed in the inner side of the three-stage cylinder cover (19), the three-stage cylinder cover (19) and the second-stage piston rod (5) are in threaded connection through the C threaded hole (20), an E sealing ring (21) is arranged in the inner side of the three-stage cylinder cover (19), and a plurality of F sealing rings (22) are arranged on the periphery of the three-stage cylinder cover (19).
5. The novel three-stage lifting oil cylinder for the car according to claim 1, wherein the peripheries of the primary piston rod (2) and the secondary piston rod (5) are respectively provided with a through hole (23).
6. The novel three-stage lifting oil cylinder for the car according to claim 1, wherein a first oil inlet (26) is formed in the periphery of the cylinder body (1), a second oil inlet (27) is formed in the periphery of the secondary piston rod (5), and the first oil inlet (26) and the second oil inlet (27) are externally connected with an oil pipe (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321521859.8U CN220248533U (en) | 2023-06-15 | 2023-06-15 | Novel three-stage lifting oil cylinder for car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321521859.8U CN220248533U (en) | 2023-06-15 | 2023-06-15 | Novel three-stage lifting oil cylinder for car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220248533U true CN220248533U (en) | 2023-12-26 |
Family
ID=89265970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321521859.8U Active CN220248533U (en) | 2023-06-15 | 2023-06-15 | Novel three-stage lifting oil cylinder for car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220248533U (en) |
-
2023
- 2023-06-15 CN CN202321521859.8U patent/CN220248533U/en active Active
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