CN213928665U - Two-stage compression cylinder capable of doing work in whole course - Google Patents
Two-stage compression cylinder capable of doing work in whole course Download PDFInfo
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- CN213928665U CN213928665U CN202023223455.XU CN202023223455U CN213928665U CN 213928665 U CN213928665 U CN 213928665U CN 202023223455 U CN202023223455 U CN 202023223455U CN 213928665 U CN213928665 U CN 213928665U
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Abstract
The utility model discloses a second grade compression cylinder of whole acting of ability belongs to varactor formula machinery technical field, and it includes the casing, characterized in that: the shell is internally provided with a first-stage cylinder cavity, a connecting cavity and a second-stage cylinder cavity which are sequentially distributed, the connecting cavity is communicated with an air inlet, the first-stage cylinder cavity and the second-stage cylinder cavity are relatively distributed, the radial section of the second-stage cylinder cavity is smaller than that of the first-stage cylinder cavity, a first-stage piston connected with a first-stage piston rod is assembled in the first-stage cylinder cavity, a second-stage piston connected with a second-stage piston rod is assembled in the second-stage cylinder cavity, and the first-stage piston rod is hinged to the second-stage piston rod in the connecting cavity. The cylinder ensures that no matter how the primary piston and the secondary piston move, a rodless cavity is always in a compression working state, so that the working efficiency is improved; and the secondary rodless cavity is used for carrying out secondary pressurization on the gas after the primary rodless cavity is pressurized, so that the continuity of the compression work is realized.
Description
Technical Field
The utility model belongs to the technical field of the varactor formula machinery, concretely relates to second grade compression cylinder of ability whole journey acting.
Background
With the development of the automobile industry technology, the air suspension technology is gradually perfected and is gradually applied to the suspension system of the vehicle. The air spring is used for buffering vibration from wheels, the air pressure of the air spring is adjusted in real time according to road conditions, the hardness of the air spring is changed accordingly, and the purposes of improving comfort and stability of a vehicle in the driving process are achieved.
In practical applications, an air pump is usually used to provide compressed air for the air spring, so as to adjust the elastic coefficient of the air spring. When the air spring needs to be hardened, the air pump works, and air is compressed and then is filled into the air spring; when the air spring needs to be softened, part of the compressed air is released.
Most of the existing air pumps are provided with a motor to drive a piston to reciprocate so as to realize air suction and compression, and thus, half of the stroke of the motor is used for air suction, and the other half of the stroke is used for compressing air, so that only the compression part is used for really generating valuable useful work, and the working efficiency of the motor is greatly reduced.
Disclosure of Invention
The utility model aims to solve the technical problem that a can whole second grade compression cylinder of acting is provided, can make one-level piston and second grade piston remove to same direction, and the one-level rodless chamber is breathed in turn with the second grade rodless chamber and is compressed.
In order to solve the technical problem, the technical scheme of the utility model is that: design a can whole second grade compression cylinder of doing work, including the casing, its characterized in that: a first-stage cylinder cavity, a connecting cavity and a second-stage cylinder cavity are arranged in the shell and are sequentially distributed, the connecting cavity is communicated with the air inlet, the first-stage cylinder cavity and the second-stage cylinder cavity are oppositely distributed, and the radial section of the second-stage cylinder cavity is smaller than that of the first-stage cylinder cavity;
a first-stage piston is assembled in the first-stage cylinder cavity, the first-stage piston divides the first-stage cylinder cavity into a first-stage rod cavity and a first-stage rodless cavity, a first-stage air inlet is formed in the first-stage piston and is communicated with the first-stage rod cavity and the first-stage rodless cavity, a first one-way valve capable of switching on and off the first-stage air inlet is arranged on the first-stage air inlet, a first-stage rodless cavity is communicated with a first-stage air outlet, and a second one-way valve capable of switching on and off;
a second-stage piston is assembled in the second-stage cylinder cavity, the second-stage piston divides the second-stage cylinder cavity into a second-stage rod cavity and a second-stage rodless cavity, the second-stage rodless cavity is communicated with a second-stage air inlet hole and a second-stage air outlet hole, the second-stage air inlet hole is communicated with the first-stage air outlet hole, a third one-way valve capable of switching on and off the second-stage air inlet hole is arranged on the second-stage air inlet hole, and a fourth one-way valve capable of switching on and off the second-stage air outlet hole is arranged on the second-stage air outlet hole;
the first-stage piston is connected with a first-stage piston rod, the second-stage piston is connected with a second-stage piston rod, the first-stage piston rod is hinged with the second-stage piston rod in the connecting cavity, and the first-stage piston rod or the second-stage piston rod is provided with a connecting hole.
Furthermore, the fourth check valve is a fourth valve plate which can be opened in the direction far away from the second-stage rodless cavity.
Furthermore, the valve further comprises a limiting piece which can block the opened fourth valve plate.
Furthermore, the first check valve is a first valve plate, the first valve plate is arranged on the end wall of the primary piston, and the first valve plate is arranged close to the primary rodless cavity.
Furthermore, the second check valve is a second valve plate which can be opened towards the direction far away from the primary rodless cavity.
Furthermore, the third check valve is a third valve plate which can be opened towards the direction of the second-stage rodless cavity.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the first-stage cylinder cavity and the second-stage cylinder cavity are distributed oppositely, and the first-stage piston rod is hinged with the second-stage piston rod in the connecting cavity, so that the first-stage piston and the second-stage piston can move towards the same direction at the same time, and the first-stage rodless cavity and the second-stage rodless cavity alternately suck air and compress the air, namely, no matter how the first-stage piston and the second-stage piston move, a rodless cavity is always in a compression working state, and the working efficiency is improved; and the secondary rodless cavity is used for carrying out secondary pressurization on the gas after the primary rodless cavity is pressurized, so that the continuity of the compression work is realized.
2. Because the first check valve, the second check valve, the third check valve and the fourth check valve all adopt the form of the elastic valve plate, the structure of the check valves is simplified, and the installation structure is also simplified, so that the cylinder is more compact in structure, fault points are reduced, and the stability of the operation of the cylinder is favorably maintained.
3. Because still set up the spacing piece that can restrict the fourth valve block and open the degree, can avoid the fourth valve block because of the too big circumstances that can not normally reset of damage of expansion range, further guarantee the reliable work of cylinder.
4. The utility model discloses simple structure can make one-level cylinder and second grade cylinder be in compression operating condition in turn for the kinetic energy of motor is in whole acting state, has improved work efficiency, is convenient for in industry popularize and apply.
Drawings
Fig. 1 is a first perspective exploded view of the present invention;
FIG. 2 is a second perspective exploded view of the present invention;
FIG. 3 is a view in the direction A of FIG. 1;
FIG. 4 is a cross-sectional view B-B of FIG. 3;
fig. 5 is a cross-sectional view C-C of fig. 4.
The labels in the figure are: 1. a housing; 2. a connecting cavity; 3. a first-stage rod cavity; 4. a primary rodless cavity; 5. connecting holes; 6. an air inlet; 7. hinging a shaft; 8. a second-stage rod cavity; 9. a secondary rodless cavity; 10. a primary air inlet; 11. a first valve plate; 12. a primary air outlet; 13. a second valve plate; 14. a secondary air inlet; 15. a third valve plate; 16. a fourth valve plate; 17. a limiting sheet; 18. a secondary air outlet; 19. a secondary piston rod; 20. a primary piston rod; 21. a primary piston; 22. a secondary piston.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 4, the utility model discloses have seted up the one-level jar chamber that distributes in proper order, connect chamber 2 and second grade jar chamber in casing 1, connect chamber 2 intercommunication air inlet 6, one-level jar chamber is relative form distribution with second grade jar chamber, and the radial cross-section in second grade jar chamber is less than one-level jar chamber. The first-stage cylinder cavity is internally provided with a first-stage piston 21, and the first-stage piston 21 is connected with a first-stage piston rod 20. The primary piston 21 divides the primary cylinder chamber into a primary rod chamber 3 and a primary rodless chamber 4. As shown in fig. 1, a primary air inlet 10 is formed in a primary piston 21, the primary air inlet 10 is communicated with a primary rod cavity 3 and a primary rodless cavity 4, a first valve plate 11 is mounted on the end wall of the primary piston 21, and the first valve plate 11 can cover the primary air inlet 10 and is arranged close to the side of the primary rodless cavity 4. As shown in fig. 2, the housing 1 is provided with a second valve plate 13, the second valve plate 13 can cover the primary air outlet hole 12, and the second valve plate 13 can only be opened in a direction away from the primary rodless cavity 4. The secondary cylinder cavity is internally provided with a secondary piston 22, the secondary piston 22 is connected with a secondary piston rod 19, the secondary piston rod 19 is hinged with a primary piston rod 20 in the connecting cavity 2 through a hinge shaft 7, the secondary piston rod 19 is provided with a connecting hole 5, and the secondary piston rod 19 can be connected with a power device such as a motor and the like through the connecting hole 5. The secondary piston 22 divides the secondary cylinder cavity into a secondary rod cavity 8 and a secondary rodless cavity 9, the secondary rodless cavity 9 is communicated with a secondary air inlet 14 and a secondary air outlet 18, and the secondary air inlet 14 is communicated with a primary air outlet 12. As shown in fig. 5, a third valve plate 15 capable of sealing the secondary air intake hole 14 is provided on the housing 1 in the secondary rodless chamber 9, so that the third valve plate 15 can only open into the secondary rodless chamber 9. As shown in fig. 3, the housing 1 is further provided with a fourth valve plate 16 capable of sealing the second-stage air outlet 18, the fourth valve plate 16 can only open in a direction away from the second-stage rodless cavity 9, the housing 1 is further provided with a limiting plate 17, and the limiting plate 17 can block the open fourth valve plate 16 to limit the opening degree of the fourth valve plate 16.
The working process of the utility model is as follows:
when the secondary piston rod 19 is pushed into the secondary cylinder cavity, the primary piston rod 20 is pulled out of the primary cylinder cavity, so that the primary rodless cavity 4 becomes large, the second valve plate 13 blocks the primary air outlet hole 12, the first valve plate 11 blocks the primary air inlet hole 10, the pressure in the primary rodless cavity 4 is rapidly reduced, vacuum occurs, the first valve plate 11 is forced to open, the blocking effect on the primary air inlet hole 10 is lost, and air enters the primary air inlet hole 10 through the air inlet 6 and the connecting cavity 2 and enters the primary rodless cavity 4. When the primary piston 21 pushes into the primary cylinder cavity, the primary rodless cavity 4 is reduced, air in the primary rodless cavity is compressed, when the pressure is increased to a certain degree, the second valve plate 13 is pushed open, so that compressed air enters the secondary air inlet hole 14 from the primary air outlet hole 12, the secondary rodless cavity 9 is in the process of being enlarged, the third valve plate 15 is opened, air compressed by the primary rodless cavity 4 enters the secondary rodless cavity 9, when the secondary piston rod 19 pushes into the secondary cylinder cavity again, air pushes open the fourth valve plate 16 after secondary compression, is discharged from the secondary air outlet hole 18, and compressed air with higher pressure is supplied. Thus, when the primary piston rod 20 and the secondary piston rod 19 move towards the direction of the secondary rodless cavity 9 together, the primary rodless cavity 4 sucks air, and the secondary rodless cavity 9 is compressed; when the first-stage piston rod 20 and the second-stage piston rod 19 move towards the first-stage rodless cavity 4 together, the first-stage rodless cavity 4 is compressed, and the second-stage rodless cavity 9 sucks air, namely the first-stage rodless cavity 4 and the second-stage rodless cavity 9 alternately suck air and compress the air, so that no matter how the piston rods move, one rodless cavity is always in a real acting state, the working efficiency of the air cylinder is improved, and the second-stage rodless cavity 9 compresses the air compressed by the first-stage rodless cavity 4 again, and the air supply pressure is improved.
First check valve, second check valve, third check valve and fourth check valve except adopting above-mentioned valve block structure, can also adopt the check valve of other concrete structures, as long as can control gaseous one-way circulation can, only adopt the valve block can self carry out automatic start-stop according to the pressure condition, not only simplified self structure, also simplified control structure for the overall structure of cylinder is compacter, has reduced the fault point, does benefit to the stability of cylinder operation.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (6)
1. The utility model provides a can whole second grade compression cylinder of doing work, includes the casing, its characterized in that: a first-stage cylinder cavity, a connecting cavity and a second-stage cylinder cavity are arranged in the shell and are sequentially distributed, the connecting cavity is communicated with the air inlet, the first-stage cylinder cavity and the second-stage cylinder cavity are oppositely distributed, and the radial section of the second-stage cylinder cavity is smaller than that of the first-stage cylinder cavity;
a first-stage piston is assembled in the first-stage cylinder cavity, the first-stage piston divides the first-stage cylinder cavity into a first-stage rod cavity and a first-stage rodless cavity, a first-stage air inlet is formed in the first-stage piston and is communicated with the first-stage rod cavity and the first-stage rodless cavity, a first one-way valve capable of switching on and off the first-stage air inlet is arranged on the first-stage air inlet, a first-stage rodless cavity is communicated with a first-stage air outlet, and a second one-way valve capable of switching on and off the first-stage air outlet is arranged on the first-stage air outlet;
a second-stage piston is assembled in the second-stage cylinder cavity, the second-stage piston divides the second-stage cylinder cavity into a second-stage rod cavity and a second-stage rodless cavity, the second-stage rodless cavity is communicated with a second-stage air inlet hole and a second-stage air outlet hole, the second-stage air inlet hole is communicated with the first-stage air outlet hole, a third one-way valve capable of switching on and off the second-stage air inlet hole is arranged on the second-stage air inlet hole, and a fourth one-way valve capable of switching on and off the second-stage air outlet hole is arranged on the second-stage air outlet hole;
the first-stage piston is connected with a first-stage piston rod, the second-stage piston is connected with a second-stage piston rod, the first-stage piston rod is hinged with the second-stage piston rod in the connecting cavity, and the first-stage piston rod or the second-stage piston rod is provided with a connecting hole.
2. The two-stage compression cylinder capable of doing work in the whole process according to claim 1, characterized in that: the fourth check valve is a fourth valve plate which can be opened towards the direction far away from the second-stage rodless cavity.
3. The two-stage compression cylinder capable of doing work throughout the process of claim 2, wherein: the valve further comprises a limiting piece, and the limiting piece can block the opened fourth valve plate.
4. A two-stage compression cylinder capable of performing work throughout its course as claimed in any one of claims 1 to 3, wherein: the first check valve is a first valve plate, the first valve plate is installed on the end wall of the primary piston, and the first valve plate is arranged close to the primary rodless cavity.
5. A two-stage compression cylinder capable of performing work throughout its course as claimed in any one of claims 1 to 3, wherein: the second check valve is a second valve plate which can be opened towards the direction far away from the primary rodless cavity.
6. A two-stage compression cylinder capable of performing work throughout its course as claimed in any one of claims 1 to 3, wherein: the third check valve is a third valve plate which can be opened towards the direction of the second-stage rodless cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023223455.XU CN213928665U (en) | 2020-12-29 | 2020-12-29 | Two-stage compression cylinder capable of doing work in whole course |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023223455.XU CN213928665U (en) | 2020-12-29 | 2020-12-29 | Two-stage compression cylinder capable of doing work in whole course |
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| Publication Number | Publication Date |
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| CN213928665U true CN213928665U (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023223455.XU Active CN213928665U (en) | 2020-12-29 | 2020-12-29 | Two-stage compression cylinder capable of doing work in whole course |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024008148A1 (en) * | 2022-07-06 | 2024-01-11 | 浙江千机智能科技有限公司 | Power device and compression assembly |
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2020
- 2020-12-29 CN CN202023223455.XU patent/CN213928665U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024008148A1 (en) * | 2022-07-06 | 2024-01-11 | 浙江千机智能科技有限公司 | Power device and compression assembly |
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