CN212690320U - Piston device - Google Patents
Piston device Download PDFInfo
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- CN212690320U CN212690320U CN202021433022.4U CN202021433022U CN212690320U CN 212690320 U CN212690320 U CN 212690320U CN 202021433022 U CN202021433022 U CN 202021433022U CN 212690320 U CN212690320 U CN 212690320U
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Abstract
The utility model discloses a piston device, include: the cylinder body is provided with an arc-shaped part, and a medium inlet and a medium outlet are formed in the side wall of the arc-shaped part; the piston is rotatably arranged on the arc-shaped part of the cylinder body, and a volume cavity is formed between the piston and the medium inlet and between the piston and the medium outlet; and the transmission assembly is connected with the piston and can drive the piston to rotate. The utility model discloses set up arc portion on the cylinder body, and set up medium import and medium export at the lateral wall of arc portion, make and form the volume chamber between piston and the medium import and the medium export, along with the reciprocating rotation of piston, the volume in volume chamber changes, when the volume in volume chamber enlarges, the medium gets into the volume chamber from the medium import, when the volume in volume chamber shrinks, the medium is discharged from the medium export, realize the function of inhaling into medium and discharge medium, and during the piston motion, the piston can not produce lateral pressure to the cylinder wall, frictional resistance reduces, and efficiency improves.
Description
Technical Field
The utility model relates to a fluid machinery equipment field especially relates to a piston device.
Background
The existing reciprocating piston structure is widely used for internal combustion engines and various pumps, such as air pumps, water pumps, oil pumps and other medium pumps. Under the push-pull action of the piston, the piston can be subjected to the lateral force of the cylinder wall, and the lateral force generates larger friction force, so that the efficiency of the piston mechanism is reduced.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model aims at providing a piston device with simple structure, frictional resistance are little, efficient characteristics.
The utility model discloses a piston device, include:
the cylinder body is provided with an arc-shaped part, and a medium inlet and a medium outlet are formed in the side wall of the arc-shaped part;
the piston is rotatably arranged on the arc-shaped part of the cylinder body, and a volume cavity is formed between the piston and the medium inlet and between the piston and the medium outlet;
and the transmission assembly is connected with the piston and can drive the piston to rotate.
The utility model discloses a piston device is through setting up arc portion on the cylinder body, and set up medium import and medium export at the lateral wall of arc portion, make and form the volume chamber between piston and the medium import and the medium export, along with the reciprocating rotation of piston, the volume in volume chamber changes, when the volume in volume chamber enlarges, the medium gets into the volume chamber from the medium import, when the volume in volume chamber shrinks, the medium is discharged from the medium export, and during the piston motion, the piston can not produce lateral pressure to the cylinder wall, frictional resistance reduces, and efficiency improves.
In one embodiment of the above technical solution, the piston is plate-shaped, and the arc-shaped portion has an arc-shaped surface;
one end of the piston is rotatably arranged on one side opposite to the arc-shaped surface through a rotating shaft, and one end of the piston can slide along the arc-shaped surface.
The plate-shaped piston is simple in structure and convenient to install, and due to the positioning effect of the rotating shaft, the piston cannot generate lateral pressure on the cylinder wall when rotating, so that the friction resistance is reduced.
In an embodiment of the above technical solution, the piston includes two plates, a sealing groove is formed in a gap between the two plates, and a sealing member is disposed at one end of the two plates, which is close to the arc surface. The piston is arranged into two layers, and the sealing element is additionally arranged, so that the sealing effect of the piston can be improved, and a medium is prevented from seeping out of the end part of the piston.
In one embodiment of the above technical solution, the rotating shaft is pivotally connected and fixed by a bearing, and the bearing is a rolling bearing or a sliding bearing. The rolling bearing and the sliding bearing are simple in structure, convenient to install and use and stable in structure.
In one embodiment, the transmission assembly includes a crankshaft and a connecting rod; one end of the crankshaft is pivoted with an external power source, the other end of the crankshaft is hinged with one end of the connecting rod, and the other end of the connecting rod is connected with the piston. The crankshaft is driven by an external power source to rotate, so that the connecting rod rotates to drive the piston to rotate in the arc-shaped part in a reciprocating mode.
In one embodiment of the above technical solution, the piston device further includes a crankshaft support, and the one end of the crankshaft is pivotally connected to the crankshaft support. The crankshaft support is pivoted with one end of the crankshaft, so that the crankshaft is more stably pivoted.
In an embodiment of the above technical solution, the piston device further includes a connecting support, the connecting support is fixedly connected to the piston, and the other end of the connecting rod is hinged to the connecting support.
In one embodiment of the above technical solution, the other end of the connecting rod is hinged to the connecting support through a pin. The hinge pin has simple structure, is convenient to install and use and is suitable for being used as a hinged connecting piece.
In one embodiment of the above technical solution, the cylinder body includes an upper cylinder body and a lower cylinder body, and the upper cylinder body is detachably connected to the lower cylinder body;
the arc-shaped part is positioned on the upper cylinder body;
one end of the connecting rod is pivoted in the lower cylinder body.
Will the cylinder body is even last cylinder body and lower cylinder body, go up the cylinder body and act on the medium business turn over, lower cylinder body then is used for the installation drive assembly, and can dismantle the connection and conveniently carry out dismouting maintenance to the structure in the cylinder body.
Compared with the prior art, the utility model discloses a piston device is through setting up arc portion on the cylinder body, and set up medium import and medium export at the lateral wall of arc portion, make and form the volume chamber between piston and the medium import and the medium export, along with the reciprocating rotation of piston, the volume in volume chamber changes, when the volume in volume chamber enlarges, the medium gets into the volume chamber from the medium import, when the volume in volume chamber reduces, the medium is discharged from the medium export, realize the function of inhaling medium and discharge medium, and during the piston motion, the piston can not produce lateral pressure to the cylinder wall, frictional resistance reduces, and efficiency improves. The utility model discloses a piston device has characteristics such as simple structure, frictional resistance are little, efficient.
For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a preferred structure of the piston device of the present invention.
Detailed Description
The terms of orientation of up, down, left, right, front, back, top, bottom, and the like, referred to or may be referred to in this specification, are defined relative to their configuration, and are relative concepts. Therefore, it may be changed according to different positions and different use states. Therefore, these and other directional terms should not be construed as limiting terms.
The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a preferred structure of a piston device according to the present invention.
The utility model discloses a piston device, including cylinder body 1, piston 2 and drive assembly 3.
The cylinder body 1 is provided with an arc-shaped part 10, and the side wall of the arc-shaped part 10 is provided with a medium inlet 101 and a medium outlet 102;
the piston 2 is rotatably arranged on the arc-shaped part 10 of the cylinder 1, and a volume cavity A is formed between the piston 2 and the medium inlet 101 and the medium outlet 102;
the transmission assembly 3 is connected with the piston 2 and can drive the piston 2 to rotate.
The cylinder body 1 is provided with the arc-shaped part 10, the side wall of the arc-shaped part 10 is provided with the medium inlet 101 and the medium outlet 102, a volume cavity A is formed between the piston 2 and the medium inlet 101 and the medium outlet 102, the volume of the volume cavity A changes along with the reciprocating rotation of the piston 2, when the volume of the volume cavity A is enlarged, a medium enters the volume cavity A from the medium inlet 101, when the volume of the volume cavity A is reduced, the medium is discharged from the medium outlet 102, the functions of sucking the medium and discharging the medium are realized, and when the piston 2 moves, the piston 2 cannot generate lateral pressure on the cylinder wall, the friction resistance is reduced, and the efficiency is improved.
Specifically, the piston 2 is plate-shaped, the arc portion 10 has an arc surface 100, and the arc surface 100 of the present embodiment has a sector-shaped cross section.
One end of the piston 2 is rotatably disposed at one side opposite to the arc-shaped surface 100 through a rotating shaft 9, and one end of the piston can slide along the arc-shaped surface 100.
The plate-shaped piston 2 is simple in structure and convenient to install, and the piston 2 cannot generate lateral pressure on a cylinder wall when rotating due to the positioning effect of the rotating shaft 9, so that the friction resistance is reduced.
Preferably, the piston 2 includes two plates, a sealing groove 20 is formed in a gap between the two plates, and a sealing member 21 is disposed at one end of the two plates, which is close to the arc surface 100. The piston 2 is provided with two layers and the sealing member 21 is added, so that the sealing effect can be improved, and the medium can be prevented from leaking out of the end part of the piston 2.
Further, the rotating shaft 9 is pivotally connected and fixed through a bearing 91, and the bearing 91 is a rolling bearing or a sliding bearing. The rolling bearing and the sliding bearing are simple in structure, convenient to install and use and stable in structure.
Preferably, the transmission assembly 3 comprises a crankshaft 31 and a connecting rod 32; one end of the crankshaft 31 is pivotally connected to an external power source, the other end thereof is hinged to one end of the connecting rod 32, and the other end of the connecting rod 32 is connected to the piston 2. The crankshaft 31 is rotated by an external power source, so that the connecting rod 32 is rotated to drive the piston 2 to rotate back and forth in the arc portion 10.
Further, the piston device further comprises a crankshaft support 4, and the one end of the crankshaft 31 is pivoted through the crankshaft support 4. The one end of the crankshaft 31 is pivoted through the crankshaft support 4, so that the pivoting of the crankshaft 31 is more stable.
In addition, the piston device further comprises a connecting support 5, the connecting support 5 is fixedly connected with the piston 2, and the other end of the connecting rod 32 is hinged to the connecting support 5.
Preferably, the other end of the connecting rod 32 is hinged to the connecting support 5 through a pin 6. The pin shaft 6 is simple in structure, convenient to install and use and suitable for being used as a hinged connecting piece.
Further, the cylinder body 1 comprises an upper cylinder body 11 and a lower cylinder body 12, and the upper cylinder body 11 is detachably connected with the lower cylinder body 12. The upper cylinder 11 and the lower cylinder 12 of the present embodiment are preferably detachably connected by bolts.
The arc portion 10 is located at the upper cylinder 11. One end of the connecting rod 32 is pivoted in the lower cylinder 12, and the crankshaft support 4 of the embodiment is also arranged in the lower cylinder 12.
Will cylinder body 1 is even last cylinder body 11 and lower cylinder body 12, it acts on the medium business turn over to go up cylinder body 11, lower cylinder body 12 is then used for the installation drive assembly 3, and can dismantle the connection and conveniently carry out dismouting maintenance to the structure in the cylinder body 1.
Further, a rotatable inlet baffle 7 is arranged on the inner side of the medium inlet 101.
The outside of the medium outlet 102 is provided with a rotatable outlet baffle 8.
Preferably, the inlet baffle 7 and the outlet baffle 8 are pivotally fixed to the side walls of the arc portion 10 by a rotating shaft, respectively.
An inlet baffle 7 and an outlet baffle 8 are respectively arranged on the inner side of the medium inlet 101 and the outer side of the medium outlet 102, and a one-way channel is respectively formed on the medium inlet 101 and the medium outlet 102, so that the medium is prevented from flowing out of the medium inlet 101 and is prevented from flowing in from the medium outlet 102.
The utility model discloses a piston device can regard as uses such as internal-combustion engine, air compressor, liquid pump, raises the efficiency. When the pump is used as a pump, the output flow is uniform; when the engine is used as an internal combustion engine, the engine outputs power and has relatively uniform rotating speed.
Compared with the prior art, the utility model discloses a piston device is through setting up arc portion 10 on cylinder body 1, and set up medium import 101 and medium export 102 at the lateral wall of arc portion 10, make and form volume chamber A between piston 2 and medium import 101 and the medium export 102, along with piston 2's reciprocating rotation, volume chamber A's volume changes, when volume chamber A's volume enlarges, the medium gets into volume chamber A from medium import 101, when volume chamber A's volume reduces, the medium is discharged from medium export 102, realize the function of inhaling medium and discharge medium, and when piston 2 moved, piston 2 can not produce lateral pressure to the cylinder wall, frictional resistance reduces, and efficiency improves. The utility model discloses a piston device has characteristics such as simple structure, frictional resistance are little, efficient.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (9)
1. A piston device, comprising:
the cylinder body is provided with an arc-shaped part, and a medium inlet and a medium outlet are formed in the side wall of the arc-shaped part;
the piston is rotatably arranged on the arc-shaped part of the cylinder body, and a volume cavity is formed between the piston and the medium inlet and between the piston and the medium outlet;
and the transmission assembly is connected with the piston and can drive the piston to rotate.
2. The piston device of claim 1, wherein: the piston is plate-shaped, and the arc-shaped part is provided with an arc-shaped surface;
one end of the piston is rotatably arranged on one side opposite to the arc-shaped surface through a rotating shaft, and one end of the piston can slide along the arc-shaped surface.
3. The piston device of claim 2, wherein: the piston comprises two layers of plates, a sealing groove is formed in a gap between the two layers of plates, and a sealing piece is arranged at one end, close to the arc-shaped surface, of each of the two layers of plates.
4. The piston device of claim 2, wherein: the rotating shaft is fixed through a bearing pin joint, and the bearing is a rolling bearing or a sliding bearing.
5. The piston device of claim 2, wherein: the transmission assembly comprises a crankshaft and a connecting rod; one end of the crankshaft is pivoted with an external power source, the other end of the crankshaft is hinged with one end of the connecting rod, and the other end of the connecting rod is connected with the piston.
6. The piston device of claim 5, wherein: the piston device further comprises a crankshaft support, and one end of the crankshaft is pivoted through the crankshaft support.
7. The piston device of claim 6, wherein: the piston device further comprises a connecting support, the connecting support is fixedly connected with the piston, and the other end of the connecting rod is hinged to the connecting support.
8. The piston device of claim 7, wherein: the other end of the connecting rod is hinged to the connecting support through a pin shaft.
9. Piston device according to any of claims 5-8, wherein: the cylinder body comprises an upper cylinder body and a lower cylinder body, and the upper cylinder body is detachably connected with the lower cylinder body;
the arc-shaped part is positioned on the upper cylinder body;
one end of the connecting rod is pivoted in the lower cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021433022.4U CN212690320U (en) | 2020-07-20 | 2020-07-20 | Piston device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021433022.4U CN212690320U (en) | 2020-07-20 | 2020-07-20 | Piston device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212690320U true CN212690320U (en) | 2021-03-12 |
Family
ID=74898369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021433022.4U Active CN212690320U (en) | 2020-07-20 | 2020-07-20 | Piston device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212690320U (en) |
-
2020
- 2020-07-20 CN CN202021433022.4U patent/CN212690320U/en active Active
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