CN211901613U - Closed air volume adjusting valve - Google Patents
Closed air volume adjusting valve Download PDFInfo
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- CN211901613U CN211901613U CN202020226053.6U CN202020226053U CN211901613U CN 211901613 U CN211901613 U CN 211901613U CN 202020226053 U CN202020226053 U CN 202020226053U CN 211901613 U CN211901613 U CN 211901613U
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Abstract
The utility model discloses a closed air volume adjusting valve, which relates to the field of gas emission and comprises a valve body frame, blades and an adjusting device, wherein a first sealing cover plate and a second sealing cover plate are arranged at two ends of the valve body frame, side plates are arranged at two sides of the valve body frame, a plurality of blades are arranged between the first sealing cover plate and the second sealing cover plate, the upper ends of the blades are rotationally connected with the first sealing cover plate, the lower ends of the blades are rotationally connected with the second sealing cover plate, two sides of the blades are sealed and attached, the joint of the first sealing cover plate and the blades is provided with a jack, the adjusting device comprises a plurality of transmission gears and gear bolts, the transmission gears are arranged at the outer side of the first sealing cover plate, the transmission gears are mutually meshed, the upper ends of the blades are connected with the centers of the transmission gears through the gear, the other end of the gear bolt is connected with the center of the transmission gear. The utility model discloses the gas tightness is good, has solved the seal problem when the governing valve is closed.
Description
Technical Field
The utility model relates to a gas emission field especially relates to a closed air regulation valve.
Background
Air regulation valve is indispensable accessory in industry and civil buildings ventilation and air purification, the requirement to air quality is higher and higher in production and life now, especially medical field requires the air quality extremely high, but common air regulation valve leakproofness is not good on the market, the key point is at the overlap joint between and the blade and the sealed of both sides, prior art, it is hard overlap joint to handle blade and blade overlap joint department and blade and frame overlap joint department, namely blade edge direct overlap joint, under the condition that the blade is unfairness, the wind pressure is big or high temperature blade is heated and is out of shape, the valve has the too big problem of air leakage, influence valve sealing performance, cause the gas leakage after the filtration.
Disclosure of Invention
The invention aims to provide a closed air volume adjusting valve which is simple in structure, improves the tightness of the air volume adjusting valve and solves the problem of gas leakage.
The invention provides the following technical scheme:
a closed air volume adjusting valve comprises a valve body frame, blades and an adjusting device, wherein a first sealing cover plate and a second sealing cover plate are arranged at two ends of the valve body frame, side plates are arranged at two sides of the valve body frame, two sides of the first sealing cover plate are connected with the upper ends of the side plates, two sides of the second sealing cover plate are connected with the lower ends of the side plates, a plurality of blades are arranged between the first sealing cover plate and the second sealing cover plate, the upper ends of the blades are rotatably connected with the first sealing cover plate, the lower ends of the blades are rotatably connected with the second sealing cover plate, two sides of the blades are in sealing fit with each other, jacks are arranged at the joints of the first sealing cover plate and the blades, the adjusting device comprises a plurality of transmission gears and gear plugs, the transmission gears are arranged at the outer sides of the first sealing cover plate, the transmission gears are mutually meshed, the upper ends, the other end of the gear bolt is connected with the center of the transmission gear, the blades can rotate along with the rotation of the transmission gear, and the blades can be separated from each other through rotation and can also be tightly attached through rotation.
Furthermore, the blade two ends are provided with a knife edge cover plate, the center of the knife edge cover plate is provided with a jack, one end of the gear bolt penetrates through the jack of the first sealing cover plate, the end part of the gear bolt is embedded into the jack of the knife edge cover plate, and the other end of the gear bolt is embedded into the center of the transmission gear.
Furthermore, the cross section of the gear bolt is a regular polygon, a regular polygon jack which is the same as the cross section of the gear bolt is arranged at the center of the transmission gear, a regular polygon jack which is the same as the cross section of the gear bolt is arranged at the center of the knife edge cover plate, the end part of the gear bolt is embedded into the jack of the transmission gear, the end part of the gear bolt is in interference fit with the jack of the transmission gear, the other end of the gear bolt penetrates through the jack of the first sealing cover plate, and the end part of the gear bolt is embedded into the jack of the knife edge cover.
Further, adjusting device includes adjustment handle, adjustment handle is last to have the jack, drive gear includes a driving gear and a plurality of driven gear, the gear bolt includes the transmission shaft, transmission shaft one end runs through the jack of first sealed apron, and in the jack of the edge of a knife apron of tip embedding blade, the transmission shaft other end runs through the center of driving gear, and passes adjustment handle's jack, the transmission shaft cross section is the same with the gear bolt.
Through the structure, the adjusting handle is rotated to drive the transmission shaft to rotate, the transmission shaft drives the driving gear to rotate, the transmission gears are buckled with each other in pairs, so that the gear bolts penetrating through the transmission gears rotate together, the gear bolts penetrate into the knife edge cover plate on the blade, and when the gear bolts rotate, the gear bolts can drive the blade and the knife edge cover plate to rotate due to the fact that the gear bolts are tightly attached to the insertion holes in the knife edge cover plate.
Furthermore, a positioning plate is arranged on the outer side of the first sealing cover plate and located at the upper end of the driving gear, one end of the transmission shaft penetrates through the center of the positioning plate and penetrates through a jack of an adjusting handle, the adjusting handle is arranged at the upper end of the positioning plate, scale marks are arranged on one side of the positioning plate, a groove opposite to the scale marks is arranged on the other side of the positioning plate, the groove is arc-shaped, a positioning bolt and a pointer are arranged on the adjusting handle, the pointer points to the scale marks, one end of the positioning bolt is embedded into the groove of the positioning plate, and the other end of the positioning bolt is arranged.
Furthermore, the joint of the first sealing cover plate and the knife edge cover plate at the upper end of the blade is provided with an elastic sealing gasket, the joint of the second sealing cover plate and the knife edge cover plate at the lower end of the blade is provided with an elastic sealing gasket, the sealing gasket comprises polyurethane sponge and PET, and the PET is wrapped outside the polyurethane sponge.
Further, there are arc arch and recess in the both sides of blade, the sealing strip is equipped with in the recess of blade, and the sealing strip has the arc recess, the arc arch of blade can laminate with the arc recess of sealing strip.
Furthermore, the side plate on be equipped with the deep bead, be equipped with curved sealing strip on the deep bead, sealing strip on the deep bead can laminate with the blade.
Accessible mortise and tenon joint structure dress sealing strip in the notch, and the sealing strip can form closely the interlock with the arc arch, the leakproofness between blade and blade has been improved, and the curb plate has the deep bead can closely laminate with the blade, thereby make when the governing valve is closed blade and deep bead in close contact with and blade also closely the interlock through arc arch and sealing strip, thereby the leakproofness of governing valve both sides has been improved, there is sealed the leakproofness that has improved both ends at blade both ends and sealed apron junction, the gas tightness at governing valve both ends has been increaseed, make air regulation valve reach complete sealing when the blade is closed from this, the gas tightness has been improved, the problem of gas leakage has been solved, the energy consumption is reduced.
Furthermore, the knife edge cover plate is made of plastic.
The invention has the beneficial effects that:
the utility model discloses simple structure, the recess through arc arch and sealing strip is closely occluded between the blade, and the flexible soft package in blade both ends, so guaranteed the seal when whole governing valve is closed, reduced gas leakage and energy consumption.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is an exploded view of the present invention;
fig. 2 is a bottom view of the sealing cover plate of the present invention;
FIG. 3 is a bottom view of the knife-edge cover plate of the present invention;
FIG. 4 is a top view of the knife-edge cover plate of the present invention;
FIG. 5 is an enlarged view of the vane adjustment apparatus of the present invention;
FIG. 6 is an enlarged view of the vane adjustment apparatus of the present invention;
fig. 7 is an enlarged view of a portion a of fig. 1.
Reference numerals: 1. positioning the bolt; 2. an adjusting handle; 3. a transmission gear; 4. a gear bolt; 5. a first sealing cover plate; 6. a gasket; 7. a knife edge cover plate; 71. a sealing strip; 72. a notch; 73. an arc-shaped bulge; 8. a blade; 9. a side plate; 10. a pointer; 11. Scale lines; 12. positioning a plate; 13. a drive shaft; 14. a wind deflector; 15. a second sealing cover plate; 16. a driving gear; 17. a driven gear.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1, a closed air volume adjusting valve, including the valve body frame, a plurality of blades 8, the valve body frame is by first sealed apron 5, second sealed apron 15 and curb plate 9 are constituteed, be equipped with a plurality of blades 8 between first sealed apron 5 and the second sealed apron 15, edge of a knife apron 7 is equipped with at 8 both ends of blade, 8 both sides of blade are equipped with arc arch 73 and notch 72 respectively, notch 72 is equipped with sealing strip 71 through tenon fourth of the twelve earthly branches structure, there is the arc recess that can closely laminate with arc arch 73 on the sealing strip 71, sealing strip 71 can closely interlock with arc arch 73, blade 8 closely laminates with blade 8 through arc arch 73 with the sealing strip 71 in the notch 72 when air volume adjusting valve closes, both sides curb plate 9 is equipped with 14, wind-guard 14 closely laminates with blade 8 when blade 8 wind-guard is closed. The knife edge cover plate 7, the first sealing cover plate 5 and the second sealing cover plate 15 are provided with the sealing gasket 6, the sealing gasket 6 is made of polyurethane sponge and wrapped by PET materials, the design is adopted to improve the air volume adjusting valve tightness, and the problem of gas leakage when the adjusting valve is closed is solved.
A transmission gear 3 is arranged in the first sealing cover plate 5, the transmission gear 3 is meshed with each other, a gear bolt 4 penetrates through the transmission gear 3, the transmission gear 3 is divided into a driving gear 16 and a driven gear 17, a transmission shaft 13 penetrates through the center of the driving gear 16 and then penetrates through an insertion hole of the first sealing cover plate 5 to be embedded into an insertion hole of the knife edge cover plate 7, the other end of the transmission shaft is connected with an adjusting handle 2, the gear bolt 4 penetrates through the first sealing cover plate 5 to be inserted into an insertion hole of the knife edge cover plate 7 of the blade 8, the other end of the gear bolt is embedded into the center of the driven gear 17, a positioning plate 12 is arranged on the first sealing cover plate 5, one side of the positioning plate 12 is provided with a scale mark 11, the other side of the positioning plate 12 is provided with an arc-shaped groove opposite to the scale mark, the adjusting handle 2 is provided, make driving gear 16 rotate through transmission shaft 13, driving gear 16 rotates back and drives driven gear 17 and rotate, and later gear bolt 4 also rotates with blade 8, controls the rotation of blade 8 through this kind of mode, realizes opening and closing of air regulation valve.
The working mode of the invention is as follows:
when the air quantity needs to be adjusted, the adjusting handle 2 is rotated, the positioning bolt 1 rotates in the groove of the positioning plate 12, the pointer 10 on the adjusting handle 2 rotates on the scale mark 11, and the transmission gear 3 can rotate along with the adjusting handle 2 because the adjusting handle 2 is connected with the transmission shaft 13, and the transmission shaft 13 penetrates through the transmission gear 3 and is inserted into the knife edge cover plate 7 of the blade 8. The center of the transmission gear 3 is provided with a gear bolt 4, the gear bolt 4 penetrates through the first sealing cover plate 5 to be inserted into a knife edge cover plate 7 of the blade 8, and the blade 8 rotates along with the gear bolt 4 when the transmission gear 3 rotates. When the blade 8 is closed, the arc-shaped protrusion 73 can be meshed with the sealing strip 71 on the notch 72, so that the regulating valve is completely closed, the air tightness of the regulating valve is improved, and the gas leakage is reduced.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A closed air volume adjusting valve is characterized in that: the valve comprises a valve body frame, blades and an adjusting device, wherein a first sealing cover plate and a second sealing cover plate are arranged at two ends of the valve body frame, side plates are arranged at two sides of the valve body frame, two sides of the first sealing cover plate are connected with the upper ends of the side plates, two sides of the second sealing cover plate are connected with the lower ends of the side plates, a plurality of blades are arranged between the first sealing cover plate and the second sealing cover plate, the upper ends of the blades are rotatably connected with the first sealing cover plate, the lower ends of the blades are rotatably connected with the second sealing cover plate, two sides between the blades are in sealing fit, jacks are arranged at the joints of the first sealing cover plate and the blades, the adjusting device comprises a plurality of transmission gears and gear plugs, the transmission gears are arranged at the outer sides of the first sealing cover plate, the transmission gears are mutually meshed, the upper ends of, the other end of the gear bolt is connected with the center of the transmission gear.
2. The closed air volume adjusting valve according to claim 1, wherein: the blade is characterized in that blade edge cover plates are arranged at two ends of the blade, an insertion hole is formed in the center of each blade edge cover plate, one end of each gear bolt penetrates through the insertion hole of the first sealing cover plate, the end part of each gear bolt is embedded into the insertion hole of each blade edge cover plate, and the other end of each gear bolt is embedded into the center of each transmission gear.
3. The closed air volume adjusting valve according to claim 2, characterized in that: the cross section of gear bolt is regular polygon, drive gear's center has the regular polygon jack the same with gear bolt cross section, the center of edge of a knife apron has the regular polygon jack the same with gear bolt cross section, gear bolt tip embedding drive gear's jack, gear bolt tip and drive gear's jack interference fit, the jack of first sealed apron is run through to the gear bolt other end, just in the jack of edge of a knife apron is inlayed to the tip of gear bolt.
4. The closed air volume adjusting valve according to claim 2, characterized in that: adjusting device includes adjustment handle, adjustment handle is last to have the jack, drive gear includes a driving gear and a plurality of driven gear, the gear bolt includes the transmission shaft, transmission shaft one end runs through the jack of first sealed apron, and in the jack of the edge of a knife apron of tip embedding blade, the transmission shaft other end runs through the center of driving gear, and passes adjustment handle's jack, the transmission shaft cross section is the same with the gear bolt.
5. The closed air volume adjusting valve according to claim 4, wherein: the positioning plate is arranged on the outer side of the first sealing cover plate and located at the upper end of the driving gear, one end of the transmission shaft penetrates through the center of the positioning plate and penetrates through a jack of the adjusting handle, the adjusting handle is arranged at the upper end of the positioning plate, scale marks are arranged on one side of the positioning plate, a groove opposite to the scale marks is arranged on the other side of the positioning plate, the groove is arc-shaped, a positioning bolt and a pointer are arranged on the adjusting handle, the pointer points to the scale marks, one end of the positioning bolt is embedded into the groove of the positioning plate, and the other end of the positioning bolt.
6. The closed air volume adjusting valve according to claim 1, wherein: the elastic sealing gasket is arranged at the joint of the first sealing cover plate and the knife edge cover plate at the upper end of the blade, the elastic sealing gasket is arranged at the joint of the second sealing cover plate and the knife edge cover plate at the lower end of the blade, the sealing gasket comprises polyurethane sponge and PET, and the PET is wrapped outside the polyurethane sponge.
7. The closed air volume adjusting valve according to claim 1, wherein: the two sides of the blade are provided with arc-shaped bulges and grooves, the sealing strip is arranged in the groove of the blade, the sealing strip is provided with an arc-shaped groove, and the arc-shaped bulges of the blade can be attached to the arc-shaped groove of the sealing strip.
8. The closed air volume adjusting valve according to claim 1, wherein: the side plate on be equipped with the deep bead, curved sealing strip is equipped with on the deep bead, sealing strip on the deep bead can laminate with the blade.
9. The closed air volume adjusting valve according to claim 6, wherein: the knife edge cover plate is made of plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020226053.6U CN211901613U (en) | 2020-02-28 | 2020-02-28 | Closed air volume adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020226053.6U CN211901613U (en) | 2020-02-28 | 2020-02-28 | Closed air volume adjusting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211901613U true CN211901613U (en) | 2020-11-10 |
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ID=73300349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020226053.6U Active CN211901613U (en) | 2020-02-28 | 2020-02-28 | Closed air volume adjusting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211901613U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576766A (en) * | 2020-12-10 | 2021-03-30 | 艾尔科建设工程(江苏)有限公司 | Constant air volume valve with duty mode |
-
2020
- 2020-02-28 CN CN202020226053.6U patent/CN211901613U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576766A (en) * | 2020-12-10 | 2021-03-30 | 艾尔科建设工程(江苏)有限公司 | Constant air volume valve with duty mode |
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