CN215891330U - Poppet valve sealed by compressed air - Google Patents
Poppet valve sealed by compressed air Download PDFInfo
- Publication number
- CN215891330U CN215891330U CN202122071495.5U CN202122071495U CN215891330U CN 215891330 U CN215891330 U CN 215891330U CN 202122071495 U CN202122071495 U CN 202122071495U CN 215891330 U CN215891330 U CN 215891330U
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- hollow shaft
- sealing
- valve
- sealing ring
- valve body
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Abstract
The utility model discloses a poppet valve sealed by compressed air, which comprises a valve body and a sealing mechanism, wherein a circular plate is arranged at the top of the valve body, a sealing ring is arranged at the bottom of the valve body, a cylinder is arranged above the circular plate, a hollow shaft is vertically arranged in the middle of the circular plate, the top of the hollow shaft is connected with the cylinder, the bottom of the hollow shaft is fastened and connected with a valve plate, and the sealing mechanism is symmetrically arranged at the contact positions of the left end and the right end of the valve plate and the sealing ring; sealing mechanism includes trachea, quick connector, clamping ring, and the middle part of sealing ring is provided with the clamping ring, and the top of clamping ring is provided with quick connector, and quick connector's one end is linked together with the sealing ring, and the other end is linked together with the trachea, and the surperficial edge of sealing ring is seted up flutedly along the circumferencial direction, and the recess is linked together with quick connector, and the bottom of clamping ring matches and is provided with the sealing strip. The utility model not only greatly reduces the construction requirement, solves the problem of complex processing, but also saves the labor, improves the working efficiency and has wide applicability.
Description
Technical Field
The utility model relates to a poppet valve, in particular to a poppet valve sealed by compressed air.
Background
The existing poppet valve adopts a fine machining mode in a sealing mode, the flatness is 0.1mm, the gap is small, and the standard is basically reached. But has high requirements on the quality of personnel, complicated processing and high cost and labor consumption. Therefore, it is necessary to develop a practical, convenient and economical sealing method.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a poppet valve sealed by compressed air.
In order to solve the technical problems, the utility model adopts the technical scheme that: a poppet valve sealed by compressed air comprises a valve body and a sealing mechanism, wherein a circular plate is arranged at the top of the valve body, a sealing ring is arranged at the bottom of the valve body, a cylinder is arranged above the circular plate, a hollow shaft is vertically arranged in the middle of the circular plate, the top of the hollow shaft is connected with the cylinder, the bottom of the hollow shaft is fixedly connected with a valve plate, the cylinder drives the valve plate to move up and down through the hollow shaft, the valve plate is movably connected with the sealing ring, and the sealing mechanism is symmetrically arranged at the contact positions of the left end and the right end of the valve plate and the sealing ring;
sealing mechanism includes trachea, quick connector, clamping ring, and the middle part of sealing ring is provided with the clamping ring, and the top of clamping ring is provided with quick connector, and quick connector's one end is linked together with the sealing ring, and the other end is linked together with the trachea, and the surperficial edge of sealing ring is seted up flutedly along the circumferencial direction, and the recess is linked together with quick connector, and the valve plate covers the recess and extends to the direction that is close to the valve body inner wall, and the bottom matching of clamping ring is provided with the sealing strip.
Preferably, the hollow shaft penetrates through the center of the circular plate and extends upwards and downwards respectively, the top of the hollow shaft is connected with a piston rod of the air cylinder through a floating joint, and the bottom of the hollow shaft is connected with the valve plate through a shaft sleeve in a fastening mode.
Preferably, the sealing strip is circular, and the sealing strip is fixedly connected with the bottom of the valve body.
Preferably, the diameter of the pressure ring is greater than the diameter of the sealing ring.
Preferably, the top of the circular plate is vertically provided with an air cylinder seat, the top end of the air cylinder seat is provided with an air cylinder, and the air cylinder seat is sleeved outside the hollow shaft.
Preferably, the valve body is externally provided with a waste gas air duct support in a matching manner.
The utility model not only greatly reduces the construction requirement, solves the problem of complex processing, but also saves the labor, improves the working efficiency and has wide applicability.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: 1. an exhaust duct support; 2. a valve body; 3. a circular plate; 4. a cylinder block; 5. a hollow shaft; 6. a cylinder; 7. a valve plate; 8. a seal ring; 9. a sealing strip; 10. pressing a ring; 11. a quick connector; 12. an air tube; 13. a floating joint; 14. a shaft sleeve; 15. and (4) a groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The poppet valve sealed by compressed air as shown in fig. 1 comprises a valve body 2, and an exhaust air duct support 1 is arranged outside the valve body 2 in a matching manner. It still includes sealing mechanism, and the top of valve body 2 is provided with plectane 3, the bottom is provided with sealing ring 8, and the top of plectane 3 is provided with cylinder 6, and the top of plectane 3 is vertical to be provided with cylinder block 4, and the top of cylinder block 4 is provided with cylinder 6, and cylinder block 6 cover is arranged outside hollow shaft 5. The middle part of the circular plate 3 is vertically provided with a hollow shaft 5, the hollow shaft 5 penetrates through the center of the circular plate 3 and respectively extends upwards and downwards, the top of the hollow shaft 5 is connected with a piston rod of the cylinder 6 through a floating joint 13, and the bottom of the hollow shaft is fastened and connected with the valve plate 7 through a shaft sleeve 14.
The top of the hollow shaft 5 is connected with a cylinder 6, the bottom of the hollow shaft is fastened with a valve plate 7, the cylinder 6 drives the valve plate 7 to move up and down through the hollow shaft 5, the valve plate 7 is movably connected with a sealing ring 8, and sealing mechanisms are symmetrically arranged at the contact positions of the left end and the right end of the valve plate 7 and the sealing ring 8; drive hollow shaft 5 through cylinder 6 and upwards or move down, hollow shaft 5 reciprocates and drives valve plate 7 and reciprocate, when valve plate 7 rebound, waste gas gets into from 2 bottoms of valve body, discharge from 2 lateral walls of valve body, when valve plate 7 rebound, valve plate 7 extrudees sealing ring 8 downwards, in order to prevent to have the interval between valve plate 7 and the sealing ring 8, let in gas through trachea 12 and quick connector 11 respectively from the both sides of sealing ring 8, gas gets into in the recess 15 on 8 surfaces of sealing ring, form airtight, avoid waste gas to leak from the clearance of valve plate 7 and sealing ring 8, reach zero leakage.
Sealing mechanism includes trachea 12, quick connector 11, clamping ring 10, sealing ring 8's middle part is provided with clamping ring 10, clamping ring 10's top is provided with quick connector 11, quick connector 11's one end is linked together with sealing ring 8, the other end is linked together with trachea 12, sealing ring 8's surface edge has seted up recess 15 along the circumferencial direction, recess 15 is linked together with quick connector 11, valve plate 7 covers recess 15 and extends to the direction that is close to 2 inner walls of valve body, clamping ring 10's bottom matching is provided with sealing strip 9. The sealing strip 9 is circular, and the sealing strip 9 is fixedly connected with the bottom of the valve body 2. The diameter of the pressure ring 10 is larger than the diameter of the sealing ring 8. The air pipe 12 is in communication with a compressed air pipe.
The action principle of the utility model is as follows: firstly, when the valve plate 7 is opened, the compressed air pipe is cut off to ventilate, and the waste gas normally passes through; and secondly, when the valve plate 7 is closed, the compressed air pipe is opened for ventilation to form positive air pressure with the valve plate 7, so that the waste gas is prevented from leaking from the gap between the valve plate and the sealing ring, and zero leakage is achieved.
According to the utility model, gas is flushed between the valve plate and the sealing ring, and the sealing is carried out in a gas sealing mode, so that the construction requirement is greatly reduced, the problem of complex processing is solved, the waste gas is prevented from leaking from the gap between the valve plate and the sealing ring, zero leakage is achieved, and the valve is practical, convenient and economical. In addition, the design has simple structure and convenient use, and can be widely applied to various poppet valves.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make variations, modifications, additions or substitutions within the technical scope of the present invention.
Claims (6)
1. A poppet valve sealed by compressed air, comprising a valve body (2), characterized in that: the valve body is characterized by further comprising a sealing mechanism, wherein a circular plate (3) is arranged at the top of the valve body (2), a sealing ring (8) is arranged at the bottom of the valve body, a cylinder (6) is arranged above the circular plate (3), a hollow shaft (5) is vertically arranged in the middle of the circular plate (3), the top of the hollow shaft (5) is connected with the cylinder (6), the bottom of the hollow shaft (5) is fixedly connected with a valve plate (7), the cylinder (6) drives the valve plate (7) to move up and down through the hollow shaft (5), the valve plate (7) is movably connected with the sealing ring (8), and the sealing mechanisms are symmetrically arranged at the contact positions of the left end and the right end of the valve plate (7) and the sealing ring (8);
sealing mechanism includes trachea (12), quick connector (11), clamping ring (10), the middle part of sealing ring (8) is provided with clamping ring (10), the top of clamping ring (10) is provided with quick connector (11), the one end of quick connector (11) is linked together with sealing ring (8), the other end is linked together with trachea (12), the surperficial edge of sealing ring (8) is seted up flutedly (15) along the circumferencial direction, recess (15) are linked together with quick connector (11), valve plate (7) cover recess (15) and extend to the direction that is close to valve body (2) inner wall, the bottom matching of clamping ring (10) is provided with sealing strip (9).
2. A poppet valve sealed with compressed air according to claim 1, wherein: the hollow shaft (5) penetrates through the center of the circular plate (3) and extends upwards and downwards respectively, the top of the hollow shaft (5) is connected with a piston rod of the cylinder (6) through a floating joint (13), and the bottom of the hollow shaft is connected with the valve plate (7) through a shaft sleeve (14) in a fastening mode.
3. A poppet valve sealed with compressed air according to claim 2, wherein: the sealing strip (9) is circular, and the sealing strip (9) is fixedly connected with the bottom of the valve body (2).
4. A poppet valve sealed with compressed air according to claim 3, wherein: the diameter of the pressing ring (10) is larger than that of the sealing ring (8).
5. A poppet valve sealed with compressed air according to claim 4, wherein: the top of the circular plate (3) is vertically provided with an air cylinder seat (4), the top end of the air cylinder seat (4) is provided with an air cylinder (6), and the air cylinder seat (6) is sleeved outside the hollow shaft (5).
6. A poppet valve sealed with compressed air according to claim 5, wherein: the valve body (2) is externally provided with a waste gas air duct support (1) in a matching manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122071495.5U CN215891330U (en) | 2021-08-31 | 2021-08-31 | Poppet valve sealed by compressed air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122071495.5U CN215891330U (en) | 2021-08-31 | 2021-08-31 | Poppet valve sealed by compressed air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215891330U true CN215891330U (en) | 2022-02-22 |
Family
ID=80502953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122071495.5U Active CN215891330U (en) | 2021-08-31 | 2021-08-31 | Poppet valve sealed by compressed air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215891330U (en) |
-
2021
- 2021-08-31 CN CN202122071495.5U patent/CN215891330U/en active Active
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