CN216767943U - Two-stage cylinder - Google Patents
Two-stage cylinder Download PDFInfo
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- CN216767943U CN216767943U CN202122443678.5U CN202122443678U CN216767943U CN 216767943 U CN216767943 U CN 216767943U CN 202122443678 U CN202122443678 U CN 202122443678U CN 216767943 U CN216767943 U CN 216767943U
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- cylinder
- piston rod
- air
- air cylinder
- cover plate
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Abstract
A second-stage air cylinder comprises a first air cylinder lower cover plate and a first air cylinder upper cover plate, a first air cylinder barrel is installed between the first air cylinder lower cover plate and the first air cylinder upper cover plate, a first air cylinder piston rod is arranged inside the first air cylinder barrel, a second air cylinder piston rod which is coaxially arranged with the first air cylinder piston rod is arranged inside the first air cylinder piston rod, a second air cylinder upper cover plate matched with the second air cylinder piston rod is installed at the outer end of the first air cylinder piston rod, and a cavity between the second air cylinder upper cover plate and the second air cylinder piston rod is set to be a second air cylinder rod cavity. The cylinder has small volume and is suitable for occasions with large stroke and small installation size; the air passages of the first air cylinder and the second air cylinder are separately controlled, three strokes can be realized, the sum of the stroke of the first air cylinder, the stroke of the second air cylinder and the stroke of the first air cylinder is increased, and the stroke of the air cylinders is increased.
Description
Technical Field
The utility model relates to the technical field of cylinder structures, in particular to a two-stage cylinder.
Background
The air cylinder is a pneumatic element for converting pressure energy of compressed air into mechanical energy in pneumatic transmission, and in the prior art, the air cylinder mainly comprises a piston, a cylinder sleeve, an end cover and the like, wherein the piston freely and linearly moves in the cylinder sleeve, and the existing air cylinder piston only can realize reciprocating linear motion with a single stroke and cannot meet the requirement of lifting equipment with a large stroke under the same installation height.
Disclosure of Invention
The utility model aims to solve the technical problem of the prior art and provides a secondary cylinder which has smaller volume and small occupied space and is suitable for occasions with large stroke and small installation size, and the specific scheme is as follows:
the utility model relates to a two-stage cylinder, which is characterized in that: the cylinder structure comprises a first cylinder lower cover plate and a first cylinder upper cover plate, wherein a first cylinder barrel is arranged between the first cylinder lower cover plate and the first cylinder upper cover plate, a first cylinder piston rod is arranged inside the first cylinder barrel, a second cylinder piston rod which is coaxially arranged with the first cylinder piston rod is arranged inside the first cylinder piston rod, a cavity between the bottom of the second cylinder piston rod and the first cylinder piston rod is set to be a second cylinder rodless cavity, a second cylinder upper cover plate which is matched with the second cylinder piston rod is arranged at the outer end part of the first cylinder piston rod, and a cavity between the second cylinder upper cover plate and the second cylinder piston rod is set to be a second cylinder rod cavity; one side of the first cylinder lower cover plate is provided with a first cylinder air inlet which is communicated with a rodless cavity in the first cylinder barrel, one side of the first cylinder upper cover plate is provided with a first cylinder air outlet which is communicated with a rod cavity in the first cylinder barrel; and a second air cylinder air inlet hole is formed in one side of the second air cylinder upper cover plate and is communicated with the rodless cavity of the second air cylinder through a flexible air pipe, the flexible air pipe is wound on a piston rod of the second air cylinder, a second air cylinder exhaust hole is formed in the second air cylinder upper cover plate on the opposite side of the second air cylinder air inlet hole, and the second air cylinder exhaust hole is communicated with the rod cavity of the second air cylinder.
The technical problem to be solved by the utility model can be further realized by the following technical scheme that a first cylinder sealing ring is arranged between a first cylinder lower cover plate and a first cylinder barrel.
The technical problem to be solved by the utility model can be further realized by the following technical scheme that a second cylinder sealing ring is arranged between the first cylinder piston rod and the second cylinder upper cover plate.
The technical problem to be solved by the utility model can be further realized by the following technical scheme that an installation chamber for installing a second cylinder piston rod is arranged in the first cylinder piston rod, and the second cylinder piston rod moves linearly along the installation chamber.
The technical problem to be solved by the utility model can be further realized by the following technical scheme that the first air cylinder air inlet hole and the first air cylinder air outlet hole are arranged on the same side.
Compared with the prior art, the cylinder has smaller volume and small occupied space, and is suitable for occasions with larger stroke and small installation size; the air passages of the first air cylinder and the second air cylinder are separately controlled, three strokes can be realized, the sum of the stroke of the first air cylinder, the stroke of the second air cylinder and the stroke of the first air cylinder is increased, and the stroke of the air cylinders is increased.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a structure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the secondary air cylinder provided in this embodiment includes a first air cylinder lower cover plate 1 and a first air cylinder upper cover plate 5, a first air cylinder barrel 4 is installed between the first air cylinder lower cover plate 1 and the first air cylinder upper cover plate 5, a first air cylinder piston rod 2 is arranged inside the first air cylinder barrel, a second air cylinder piston rod 7 coaxially arranged with the first air cylinder piston rod is arranged inside the first air cylinder piston rod, a cavity between the bottom of the second air cylinder piston rod 7 and the first air cylinder piston rod 2 is set as a second air cylinder rodless cavity, a second air cylinder upper cover plate 6 matched with the second air cylinder piston rod is installed at the outer end of the first air cylinder piston rod, and a cavity between the second air cylinder upper cover plate 6 and the second air cylinder piston rod 7 is set as a second air cylinder rod cavity; one side of the first cylinder lower cover plate is provided with a first cylinder air inlet 101 which is communicated with a rodless cavity in the first cylinder barrel, one side of the first cylinder upper cover plate is provided with a first cylinder air outlet 102 which is communicated with a rod cavity in the first cylinder barrel; and a second air cylinder air inlet hole 103 is formed in one side of the second air cylinder upper cover plate, the second air cylinder air inlet hole is communicated with a rodless cavity of the second air cylinder through a flexible air pipe, the flexible air pipe 9 is wound on a piston rod of the second air cylinder, a second air cylinder exhaust hole 104 is formed in the second air cylinder upper cover plate on the opposite side of the second air cylinder air inlet hole, and the second air cylinder exhaust hole is communicated with a rod cavity of the second air cylinder. When the first cylinder piston rod is controlled to extend outwards, gas needs to be injected into the first cylinder air inlet, and gas in the rod cavity of the first cylinder barrel is discharged from the first cylinder air outlet hole, and vice versa. Similarly, the same is true of the second cylinder.
A first cylinder sealing ring 3 is arranged between the first cylinder lower cover plate 1 and the first cylinder barrel 4. And a second cylinder sealing ring 8 is arranged between the first cylinder piston rod 2 and the second cylinder upper cover plate 6. And an installation chamber for installing a second cylinder piston rod is arranged in the first cylinder piston rod, and the second cylinder piston rod moves linearly along the installation chamber. The first cylinder inlet hole 101 and the first cylinder outlet hole 102 are arranged on the same side.
The principle of the utility model is as follows: the first cylinder extends and retracts through the air intake of the first cylinder air inlet hole 101 and the air exhaust of the first cylinder air outlet hole 102; the second cylinder intake port 103 then admits air and the second cylinder exhaust port 104 exhausts air to control the second cylinder extension and retraction action.
The method comprises the following operation steps: stretching, namely firstly, enabling the air inlet hole 101 of the first air cylinder to enter, and then stretching out the piston rod of the first air cylinder; then, enabling the air inlet hole 103 of the second air cylinder to enter air, extending out a piston rod of the second air cylinder and jacking the equipment; a retracting action, namely exhausting the second cylinder exhaust hole 104, and then retracting the second cylinder piston rod; the first cylinder exhaust port 102 is then vented and the first cylinder piston rod is then retracted, returning the apparatus to the initial position.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the concept of the present invention in the disclosure of the present invention, and fall into the protection scope of the present invention.
Claims (5)
1. A two-stage cylinder is characterized in that: the cylinder structure comprises a first cylinder lower cover plate and a first cylinder upper cover plate, wherein a first cylinder barrel is arranged between the first cylinder lower cover plate and the first cylinder upper cover plate, a first cylinder piston rod is arranged inside the first cylinder barrel, a second cylinder piston rod which is coaxially arranged with the first cylinder piston rod is arranged inside the first cylinder piston rod, a cavity between the bottom of the second cylinder piston rod and the first cylinder piston rod is set to be a second cylinder rodless cavity, a second cylinder upper cover plate which is matched with the second cylinder piston rod is arranged at the outer end part of the first cylinder piston rod, and a cavity between the second cylinder upper cover plate and the second cylinder piston rod is set to be a second cylinder rod cavity; one side of the first cylinder lower cover plate is provided with a first cylinder air inlet which is communicated with a rodless cavity in the first cylinder barrel, one side of the first cylinder upper cover plate is provided with a first cylinder air outlet which is communicated with a rod cavity in the first cylinder barrel; and a second air cylinder air inlet hole is formed in one side of the second air cylinder upper cover plate and is communicated with the rodless cavity of the second air cylinder through a flexible air pipe, the flexible air pipe is wound on a piston rod of the second air cylinder, a second air cylinder exhaust hole is formed in the second air cylinder upper cover plate on the opposite side of the second air cylinder air inlet hole, and the second air cylinder exhaust hole is communicated with the rod cavity of the second air cylinder.
2. The secondary cylinder of claim 1, wherein: a first cylinder sealing ring is arranged between the first cylinder lower cover plate and the first cylinder barrel.
3. The secondary cylinder of claim 1, wherein: and a second cylinder sealing ring is arranged between the first cylinder piston rod and the second cylinder upper cover plate.
4. The secondary cylinder of claim 1, wherein: and an installation chamber for installing a second cylinder piston rod is arranged in the first cylinder piston rod, and the second cylinder piston rod linearly moves along the installation chamber.
5. The secondary cylinder of claim 1, wherein: the first cylinder air inlet hole and the first cylinder air outlet hole are arranged on the same side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122443678.5U CN216767943U (en) | 2021-10-11 | 2021-10-11 | Two-stage cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122443678.5U CN216767943U (en) | 2021-10-11 | 2021-10-11 | Two-stage cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216767943U true CN216767943U (en) | 2022-06-17 |
Family
ID=81953509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122443678.5U Active CN216767943U (en) | 2021-10-11 | 2021-10-11 | Two-stage cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216767943U (en) |
-
2021
- 2021-10-11 CN CN202122443678.5U patent/CN216767943U/en active Active
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