CN219282151U - Compact structure's multisection hydraulic cylinder - Google Patents
Compact structure's multisection hydraulic cylinder Download PDFInfo
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- CN219282151U CN219282151U CN202320187513.2U CN202320187513U CN219282151U CN 219282151 U CN219282151 U CN 219282151U CN 202320187513 U CN202320187513 U CN 202320187513U CN 219282151 U CN219282151 U CN 219282151U
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Abstract
The utility model discloses a multi-section hydraulic cylinder with a compact structure, which comprises a main cylinder, a primary hydraulic rod, a secondary hydraulic rod and a tertiary hydraulic rod, wherein the tertiary hydraulic rod is arranged in the secondary hydraulic rod, the secondary hydraulic rod is arranged in the primary hydraulic rod, the primary hydraulic rod is arranged in the main cylinder, an oil inlet and an oil outlet are arranged at the lower part of the main cylinder, a primary piston is hermetically and slidingly embedded in the inner side wall of the main cylinder, an oil channel is arranged at the upper end of the main cylinder and is communicated with a primary rod body, the secondary piston is hermetically and slidingly embedded in the inner side wall of the primary rod body, and an oil channel is arranged at the upper end of the primary rod body and is communicated with the secondary rod body. According to the utility model, the hydraulic oil cylinder has a multi-stage structure, so that the hydraulic oil cylinder has a longer stroke, the lifting can be carried out at one time, and a user can complete the lifting work by only placing the multi-stage jack once; the multi-stage embedded structure is adopted, the master cylinder is retracted into the master cylinder after completion, the master cylinder is suitable for occasions with narrow positions, the master cylinder adopts a single oil inlet and outlet port design, and the master cylinder is lifted by a single action, is convenient to move and is suitable for popularization.
Description
Technical Field
The utility model relates to the technical field of oil cylinders, in particular to a multi-section hydraulic oil cylinder with a compact structure.
Background
The oil cylinder is a hydraulic executing element which converts hydraulic energy into mechanical energy and does linear reciprocating motion. The device has simple structure and reliable operation. When the hydraulic cylinder is used for realizing reciprocating motion, a speed reducing device can be omitted, a transmission gap is avoided, the motion is stable, the hydraulic cylinder is widely applied to hydraulic systems of various machines, an oil inlet and an oil outlet are formed in a cylinder barrel of a commonly used hydraulic cylinder and are respectively connected to a hydraulic station for working, but in the use of some practical scenes, the following problems are encountered, the side is not connected with a standard hydraulic station, the installation space of the cylinder is limited, the conventional cylinder is not installed, and the cylinder is required to have a long-distance telescopic length.
Most of the multi-stage hydraulic cylinders in the current market are designed in a mode of connecting the hydraulic pump through the two oil ports, but in some scenes, the hydraulic cylinders need to be moved frequently, such as a jack, and the like, but the hydraulic pumps and the hydraulic stations are large in size and inconvenient to move, so that the problem that the hydraulic cylinders cannot be normally used due to the fact that the hydraulic pumps and the hydraulic stations are not used in the use scene easily occurs, meanwhile, different jacking lengths are needed in different scenes, the problem that the jacking distance is too long unlike the common hydraulic cylinders do fixed-distance reciprocating expansion and contraction is also caused, and meanwhile, the problem of the installation space of the cylinders needs to be considered, so that the problem is solved by designing a multi-section hydraulic cylinder with a compact structure.
Disclosure of Invention
The utility model discloses a multi-section hydraulic cylinder with a compact structure, which mainly aims to overcome the defects and the shortcomings in the prior art.
The technical scheme adopted by the utility model is as follows:
the utility model provides a compact structure's multisection hydraulic cylinder, includes master cylinder, one-level hydraulic stem, second grade hydraulic stem and tertiary hydraulic stem, tertiary hydraulic stem sets up in the second grade hydraulic stem, the second grade hydraulic stem sets up in the one-level hydraulic stem, the one-level hydraulic stem sets up in the master cylinder, lower part one side of master cylinder is provided with the business turn over hydraulic port, the one-level hydraulic stem includes perpendicular connected one-level body of rod and one-level piston, this one-level piston sealed slip inlays locates the inside wall of master cylinder, the one-level body of rod is the barrel, the upper end of master cylinder is provided with the oil passageway, this oil passageway with the one-level body of rod intercommunication; the secondary hydraulic rod comprises a secondary rod body and a secondary piston which are vertically connected, the secondary piston is hermetically and slidably embedded in the inner side wall of the primary rod body, the secondary rod body is a cylinder body, the upper end of the primary rod body is provided with an oil channel, and the oil channel is communicated with the secondary rod body.
Still further, tertiary hydraulic stem includes the tertiary body of rod and the tertiary piston of perpendicular connection, the inboard top of the second grade body of rod is equipped with solid fixed ring, tertiary piston seal slip inlay locate the second grade body of rod inside wall and with gu fixed ring slip butt.
Still further, the primary piston, the secondary piston and the tertiary piston are all equipped with sealing rubber circle along the outside week.
Still further, two of the oil passage set up respectively in the master cylinder with the one-level body of rod, the oil passage includes ring channel and L type hole, the ring channel with the one end intercommunication in L type hole, the ring channel is established respectively the one-level piston with the top of secondary piston, the other end in L type hole respectively with the master cylinder with the one-level body of rod intercommunication.
Furthermore, the oil inlet and outlet port is provided with an oil inlet and outlet valve, and the oil inlet and outlet valve can be connected with the hydraulic pump with a single oil port in an adaptive manner through a hydraulic oil pipeline.
Furthermore, the top of the three-stage hydraulic rod is provided with a quick connector groove with an upward opening.
Furthermore, a square bottom plate is fixedly arranged at the bottom of the main cylinder.
As can be seen from the above description of the present utility model, the present utility model has the following advantages compared with the prior art:
the hydraulic cylinder is provided with a multi-stage structure, so that the hydraulic cylinder has a longer stroke, the lifting can be carried out at one time, the repeated processes of lifting, heightening and re-lifting are avoided, the time is saved, the working efficiency is improved, a user only needs to place a multi-stage jack once to finish lifting, then, the multi-stage embedded structure is adopted, when the hydraulic cylinder is used, the hydraulic cylinder is lifted up step by step, and then is contracted into the master cylinder step by step after finishing, the hydraulic cylinder is suitable for places with narrow positions, the master cylinder adopts a single oil inlet and outlet design, the hydraulic cylinder is suitable for single-action lifting, such as a jack and other machines, the lifting is convenient to move, and finally, the top of the three-stage hydraulic cylinder is provided with a quick connector groove with an upward opening, so that the hydraulic cylinder is suitable for various industries such as petroleum, chemical industry, automobile repair, equipment installation and mining.
Drawings
Fig. 1 is a schematic diagram of the front view structure of the present utility model.
Fig. 2 is a schematic view of a front cross-sectional structure of the present utility model.
Fig. 3 is a schematic top view of the present utility model.
Detailed Description
Specific embodiments of the present utility model will be further described with reference to the accompanying drawings.
As shown in fig. 1 to 3, a multi-section hydraulic cylinder with a compact structure comprises a main cylinder 1, a primary hydraulic rod 2, a secondary hydraulic rod 3 and a tertiary hydraulic rod 4, wherein the tertiary hydraulic rod 4 is arranged in the secondary hydraulic rod 3, the secondary hydraulic rod 3 is arranged in the primary hydraulic rod 2, the primary hydraulic rod 2 is arranged in the main cylinder 1, an oil inlet and outlet 5 is arranged at one side of the lower part of the main cylinder 1, the primary hydraulic rod 2 comprises a primary rod body 21 and a primary piston 22 which are vertically connected, the primary piston 22 is hermetically and slidingly embedded in the inner side wall of the main cylinder 1, the primary rod body 21 is a cylinder body, the upper end of the main cylinder 1 is provided with an oil channel 6, and the oil channel 6 is communicated with the primary rod body 21; the secondary hydraulic rod 3 comprises a secondary rod body 31 and a secondary piston 32 which are vertically connected, the secondary piston 32 is hermetically and slidingly embedded in the inner side wall of the primary rod body 21, the secondary rod body 31 is a cylinder body, the upper end of the primary rod body 21 is provided with an oil channel 6, and the oil channel 6 is communicated with the secondary rod body 31.
Still further, tertiary hydraulic stem 4 includes perpendicular tertiary body of rod 41 and tertiary piston 42 that connect, the inboard top of secondary body of rod 41 is equipped with solid fixed ring 43, tertiary piston 42 sealed sliding inlay locate the inside wall of secondary body of rod 31 and with gu fixed ring 43 sliding butt.
Still further, the outer peripheries of the primary piston 22, the secondary piston 32 and the tertiary piston 42 are provided with sealing rubber rings 7.
Still further, the two oil passages 6 are respectively provided in the master cylinder 1 and the primary rod body 21, the oil passage 6 includes an annular groove 61 and an L-shaped hole 62, the annular groove 61 is communicated with one end of the L-shaped hole 62, the annular groove 61 is respectively provided above the primary piston 22 and the secondary piston 32, and the other end of the L-shaped hole 62 is respectively communicated with the master cylinder 1 and the primary rod body 21.
Furthermore, the oil inlet and outlet port 5 is provided with an oil inlet and outlet valve 51, and the oil inlet and outlet valve 51 can be connected with the hydraulic pump with a single oil port in an adaptive manner through a hydraulic oil pipeline.
Still further, the top of tertiary hydraulic stem 4 is equipped with quick-operation joint recess 8 that the opening upwards.
Further, a square bottom plate 9 is fixedly arranged at the bottom of the main cylinder 1.
Specific examples:
firstly, a plurality of sections of hydraulic cylinders are placed on a station needing to be jacked, then, an oil inlet and outlet valve 51 can be connected with a single-oil-port hydraulic pump through a hydraulic oil pipeline, hydraulic oil is pushed into a main cylinder 1 through the hydraulic pump and drives a first-stage hydraulic rod 2 to jack upwards, when the first hydraulic rod 2 is pushed upwards and reaches the upper surface of an oil channel 6, hydraulic oil is pushed into the first-stage hydraulic rod 2 through an annular groove 61 from an L-shaped hole 62, hydraulic oil in the first-stage hydraulic rod 2 pushes a second-stage hydraulic rod 3 to jack upwards, when the second-stage hydraulic rod 3 is pushed upwards and reaches the upper surface of the oil channel 6, the same hydraulic oil is pushed into the second-stage hydraulic rod 3 through an annular groove 61 from an L-shaped hole 62, hydraulic oil in the second-stage hydraulic rod 3 pushes a third-stage hydraulic rod 4 to jack upwards, the third-stage hydraulic rod 4 is jacked upwards until the third-stage hydraulic rod 4 abuts against a fixed ring 43, quick joint grooves 8 at the top of the third-stage hydraulic rod 4 can be sleeved with different mechanical joints, finally, after the jacked, the hydraulic oil in the second-stage hydraulic rods 3, the first-stage hydraulic rod 2 and the main cylinder 1 are respectively, and finally, the hydraulic rods 4 are embedded in the main cylinder 1 one by one, and finally, shrink down.
As can be seen from the above description of the present utility model, the present utility model has the following advantages compared with the prior art:
the hydraulic cylinder is provided with a multi-stage structure, so that the hydraulic cylinder has a longer stroke, the lifting can be carried out at one time, the repeated processes of lifting, heightening and re-lifting are avoided, the time is saved, the working efficiency is improved, a user only needs to place a multi-stage jack once to finish lifting, then, the multi-stage embedded structure is adopted, when the hydraulic cylinder is used, the hydraulic cylinder is lifted up step by step, and then is contracted into the master cylinder step by step after finishing, the hydraulic cylinder is suitable for places with narrow positions, the master cylinder adopts a single oil inlet and outlet design, the hydraulic cylinder is suitable for single-action lifting, such as a jack and other machines, the lifting is convenient to move, and finally, the top of the three-stage hydraulic cylinder is provided with a quick connector groove with an upward opening, so that the hydraulic cylinder is suitable for various industries such as petroleum, chemical industry, automobile repair, equipment installation and mining.
The foregoing is merely illustrative of specific embodiments of the present utility model, and the design concept of the present utility model is not limited thereto, and any insubstantial modifications made by the present utility model shall fall within the scope of the present utility model.
Claims (7)
1. A compact structure's multisection hydraulic cylinder, its characterized in that: the hydraulic oil control device comprises a main cylinder, a primary hydraulic rod, a secondary hydraulic rod and a tertiary hydraulic rod, wherein the tertiary hydraulic rod is arranged in the secondary hydraulic rod, the secondary hydraulic rod is arranged in the primary hydraulic rod, the primary hydraulic rod is arranged in the main cylinder, an oil inlet and outlet is formed in one side of the lower part of the main cylinder, the primary hydraulic rod comprises a primary rod body and a primary piston which are vertically connected, the primary piston is hermetically and slidingly embedded in the inner side wall of the main cylinder, the primary rod body is a cylinder body, and an oil channel is arranged at the upper end of the main cylinder and is communicated with the primary rod body; the secondary hydraulic rod comprises a secondary rod body and a secondary piston which are vertically connected, the secondary piston is hermetically and slidably embedded in the inner side wall of the primary rod body, the secondary rod body is a cylinder body, the upper end of the primary rod body is provided with an oil channel, and the oil channel is communicated with the secondary rod body.
2. The compact multi-section hydraulic cylinder of claim 1, wherein: the three-level hydraulic rod comprises a three-level rod body and a three-level piston which are vertically connected, a fixed ring is arranged at the top of the inner side of the two-level rod body, and the three-level piston is hermetically and slidably embedded in the inner side wall of the two-level rod body and is slidably abutted with the fixed ring.
3. The multi-section hydraulic cylinder with compact structure according to claim 2, wherein: and sealing rubber rings are arranged on the outer side edges of the primary piston, the secondary piston and the tertiary piston.
4. The compact multi-section hydraulic cylinder of claim 1, wherein: the two oil channels are respectively arranged in the main cylinder and the primary rod body, the oil channels comprise annular grooves and L-shaped holes, the annular grooves are communicated with one ends of the L-shaped holes, the annular grooves are respectively arranged above the primary piston and the secondary piston, and the other ends of the L-shaped holes are respectively communicated with the main cylinder and the primary rod body.
5. The compact multi-section hydraulic cylinder of claim 1, wherein: the oil inlet and outlet port is provided with an oil inlet and outlet valve, and the oil inlet and outlet valve can be connected with the hydraulic pump with a single oil port in an adaptive manner through a hydraulic oil pipeline.
6. The compact multi-section hydraulic cylinder of claim 1, wherein: and the top of the three-stage hydraulic rod is provided with a quick connector groove with an upward opening.
7. The compact multi-section hydraulic cylinder of claim 1, wherein: and a square bottom plate is fixedly arranged at the bottom of the main cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320187513.2U CN219282151U (en) | 2023-02-09 | 2023-02-09 | Compact structure's multisection hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320187513.2U CN219282151U (en) | 2023-02-09 | 2023-02-09 | Compact structure's multisection hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219282151U true CN219282151U (en) | 2023-06-30 |
Family
ID=86933701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320187513.2U Active CN219282151U (en) | 2023-02-09 | 2023-02-09 | Compact structure's multisection hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219282151U (en) |
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2023
- 2023-02-09 CN CN202320187513.2U patent/CN219282151U/en active Active
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