CN215980227U - Novel oil cylinder with piston rod attached with oil pipe - Google Patents
Novel oil cylinder with piston rod attached with oil pipe Download PDFInfo
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- CN215980227U CN215980227U CN202122141323.0U CN202122141323U CN215980227U CN 215980227 U CN215980227 U CN 215980227U CN 202122141323 U CN202122141323 U CN 202122141323U CN 215980227 U CN215980227 U CN 215980227U
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Abstract
The utility model discloses a novel oil cylinder with a piston rod attached with an oil pipe, which comprises: the cylinder bottom is connected with the cylinder body and is provided with an oil outlet; the piston rod is arranged in the cylinder body, an oil inlet is formed in the extending end of the piston rod, and the interior of the piston rod is hollow; the central oil pipe penetrates through the piston rod, the tail end of the central oil pipe is fixedly connected with the end cover, and the end cover is fixed on the cylinder bottom; the guide sealing unit is arranged at the bottom of the piston rod and can movably guide and seal the space between the piston rod and the central oil pipe; the oil inlet is communicated with the oil outlet after sequentially passing through the central oil pipe and the oil way. The utility model ensures that the oil passage is always independent of two cavities of the oil cylinder without influencing the normal work of the oil cylinder, thereby not only realizing the normal use of the oil cylinder in a space environment with compact structure, but also providing oil passages for other mechanisms. Meanwhile, the utility model also has the advantages of compact structure, simple and convenient use and the like.
Description
Technical Field
The utility model relates to the technical field of oil cylinders, in particular to a novel oil cylinder with a piston rod attached with an oil pipe.
Background
The hydraulic cylinder is an actuating element which converts hydraulic energy into mechanical energy in a hydraulic device and realizes linear reciprocating motion or swinging reciprocating motion. The reciprocating motion device has simple structure and reliable work, can avoid a speed reducer when the reciprocating motion is realized, has no transmission clearance, and moves stably, thereby being widely applied to hydraulic systems of various machines. The main components of the hydraulic cylinder are composed of a cylinder barrel, a cylinder cover, a piston rod, a sealing system, a buffer device and an exhaust device.
The common double-acting oil cylinder is generally provided with an oil inlet and an oil outlet which are respectively responsible for the extension and retraction of a piston rod, and in some specific occasions, oil needs to pass through the interior of the oil cylinder, but the normal use of the oil cylinder cannot be influenced, and the function can be realized by an inappropriate oil cylinder at present.
SUMMERY OF THE UTILITY MODEL
Therefore, in order to solve the above technical problems, it is necessary to provide a novel oil cylinder with a piston rod attached with an oil pipe, which has a compact structure and is simple and convenient to use.
The utility model provides a novel hydro-cylinder of piston rod additional oil pipe, includes:
the cylinder bottom is connected with the cylinder body and is provided with an oil outlet;
the piston rod is arranged inside the cylinder body, an oil inlet is formed in the extending end of the piston rod, and the interior of the piston rod is hollow;
the central oil pipe penetrates through the piston rod, the tail end of the central oil pipe is fixedly connected with an end cover, and the end cover is fixed on the cylinder bottom;
the guide sealing unit is arranged at the bottom of the piston rod and can movably guide and seal the space between the piston rod and the central oil pipe;
the oil inlet is communicated with the oil outlet after sequentially passing through the central oil pipe and the oil way.
In one embodiment, the guide sealing unit includes:
the guide sleeve is fixed at the bottom of the piston rod through a nut;
the first sealing ring is arranged between the guide sleeve and the piston rod;
and the second sealing ring is arranged between the guide sleeve and the central oil pipe.
In one embodiment, the number of the second sealing rings is multiple, and the second sealing rings are distributed at intervals along the length direction of the guide sleeve.
In one embodiment, a third sealing ring is arranged between the end cover and the cylinder bottom.
In one embodiment, the end cover is connected with the cylinder bottom through screws.
Above-mentioned novel oil cylinder of additional logical oil pipe of piston rod, through set up central oil pipe in the piston rod, and remove the direction and seal between piston rod and the central oil pipe through the sealed unit of direction, fluid can flow in from the oil inlet of the overhanging end of piston rod, and flow out from the oil-out behind the oil circuit of central oil pipe and end cover in proper order, it can stretch out or when retracting at the piston rod, guarantee that the fluid route is independent of two chambeies of hydro-cylinder all the time and do not influence the normal work of hydro-cylinder, thereby in compact structure's space environment, can realize the normal use of hydro-cylinder, can provide the oil circuit for other mechanisms again. Meanwhile, the utility model also has the advantages of compact structure, simple and convenient use and the like.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a cylinder with a novel piston rod attached with an oil pipe;
fig. 2 is a schematic diagram of the novel cylinder with the piston rod attached with an oil pipe, which is disclosed by the utility model, when the piston rod is extended out.
Detailed Description
To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-2, an embodiment of the present invention provides a cylinder with a piston rod attached with an oil pipe, including: the cylinder bottom 3, the piston rod 10, the central oil pipe 9 and the guide sealing unit.
The cylinder bottom 3 is connected with a cylinder body 11, and an oil outlet 12 is arranged on the cylinder bottom 3; the piston rod 10 is arranged inside the cylinder body 11, an oil inlet 13 is formed in the extending end of the piston rod 10, and the piston rod 10 is hollow inside; a central oil pipe 9 penetrates through the piston rod 10, the tail end of the central oil pipe 9 is fixedly connected with an end cover 4, and the end cover 4 is fixed on the cylinder bottom 3; the guide sealing unit is arranged at the bottom of the piston rod 10 and can movably guide and seal between the piston rod 10 and the central oil pipe 9; an oil path 14 is arranged inside the end cover 4, and the oil inlet 13 is communicated with the oil outlet 12 after sequentially passing through the central oil pipe 9 and the oil path 14.
Above-mentioned novel oil cylinder of additional oil pipe that leads to of piston rod, through set up central oil pipe 9 in piston rod 10, and remove direction and seal between piston rod 10 and central oil pipe 9 through the sealed unit of direction, fluid can flow in from the oil inlet 13 of the overhanging end of piston rod 10, and flow out from oil-out 12 behind the oil circuit 14 of central oil pipe 9 and end cover 4 in proper order, it can be when piston rod 10 stretches out or retracts, guarantee that the fluid route is independent of the two chambeies of hydro-cylinder all the time and do not influence the normal work of hydro-cylinder, thereby in compact structure's space environment, can realize the normal use of hydro-cylinder, can provide the oil circuit for other mechanisms again. For example: the telescopic arm of the crane is long after extending out, the inner space of the telescopic arm is limited, and the oil cylinder adopting the structure can achieve two purposes at one stroke. Meanwhile, the utility model also has the advantages of compact structure, simple and convenient use and the like.
In an embodiment of the present invention, the guide sealing unit includes: guide sleeve 6, first sealing washer 7 and second sealing washer 8.
The guide sleeve 6 is fixed at the bottom of the piston rod 10 through a nut 5; the first sealing ring 7 is arranged between the guide sleeve 6 and the piston rod 10; the second sealing ring 8 is arranged between the guide sleeve 6 and the central oil pipe 9. In this embodiment, when the piston rod 10 stretches out or retracts, the piston rod 10 drives the guide sleeve 6 to slide relative to the central oil pipe 9, the guide sleeve 6 plays a role in guiding, and the stability of the device is improved. In addition, first sealing washer 7 and second sealing washer 8 can play sealed effect, avoid revealing of fluid.
Optionally, in order to further improve the sealing performance, the number of the second sealing rings 8 is multiple, and the multiple second sealing rings 8 are distributed at intervals along the length direction of the guide sleeve 6.
Optionally, a third sealing ring 2 is arranged between the end cover 4 and the cylinder bottom 3 to avoid oil leakage in the oil passage 14.
In an embodiment of the present invention, the end cover 4 is connected to the cylinder bottom 3 by a screw 1. The connection is simple and convenient.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-described examples merely represent several embodiments of the present application and are not to be construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (5)
1. The utility model provides a novel oil cylinder of piston rod additional oil pipe, its characterized in that includes:
the cylinder bottom (3) is connected with the cylinder body (11), and an oil outlet (12) is formed in the cylinder bottom (3);
the piston rod (10) is arranged inside the cylinder body (11), an oil inlet (13) is formed in the extending end of the piston rod (10), and the interior of the piston rod (10) is hollow;
the central oil pipe (9) penetrates through the piston rod (10), the tail end of the central oil pipe (9) is fixedly connected with the end cover (4), and the end cover (4) is fixed on the cylinder bottom (3);
the guide sealing unit is arranged at the bottom of the piston rod (10) and can movably guide and seal between the piston rod (10) and the central oil pipe (9);
an oil way (14) is arranged inside the end cover (4), and the oil inlet (13) is communicated with the oil outlet (12) after sequentially passing through the central oil pipe (9) and the oil way (14).
2. The new cylinder with the piston rod attached with the oil pipe as claimed in claim 1, wherein the guiding sealing unit comprises:
the guide sleeve (6) is fixed at the bottom of the piston rod (10) through a nut (5);
the first sealing ring (7) is arranged between the guide sleeve (6) and the piston rod (10);
and the second sealing ring (8) is arranged between the guide sleeve (6) and the central oil pipe (9).
3. The new cylinder with the piston rod provided with the oil pipe is characterized in that the number of the second sealing rings (8) is multiple, and the multiple second sealing rings (8) are distributed at intervals along the length direction of the guide sleeve (6).
4. The new cylinder with the piston rod provided with the oil pipe is characterized in that a third sealing ring (2) is arranged between the end cover (4) and the cylinder bottom (3).
5. The new cylinder with the piston rod provided with the oil pipe is characterized in that the end cover (4) is connected with the cylinder bottom (3) through a screw (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122141323.0U CN215980227U (en) | 2021-09-07 | 2021-09-07 | Novel oil cylinder with piston rod attached with oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122141323.0U CN215980227U (en) | 2021-09-07 | 2021-09-07 | Novel oil cylinder with piston rod attached with oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215980227U true CN215980227U (en) | 2022-03-08 |
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ID=80467460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122141323.0U Active CN215980227U (en) | 2021-09-07 | 2021-09-07 | Novel oil cylinder with piston rod attached with oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215980227U (en) |
-
2021
- 2021-09-07 CN CN202122141323.0U patent/CN215980227U/en active Active
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