CN219796131U - High-tightness fireproof check valve with rear adjustable locking device - Google Patents
High-tightness fireproof check valve with rear adjustable locking device Download PDFInfo
- Publication number
- CN219796131U CN219796131U CN202320009483.6U CN202320009483U CN219796131U CN 219796131 U CN219796131 U CN 219796131U CN 202320009483 U CN202320009483 U CN 202320009483U CN 219796131 U CN219796131 U CN 219796131U
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- Prior art keywords
- valve
- fireproof
- sheet
- ventilation
- hinge
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- 238000009423 ventilation Methods 0.000 claims abstract description 49
- 230000006835 compression Effects 0.000 claims abstract description 37
- 238000007906 compression Methods 0.000 claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 claims abstract description 8
- 239000000779 smoke Substances 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims abstract description 7
- 230000005484 gravity Effects 0.000 claims description 6
- 239000006233 lamp black Substances 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- Check Valves (AREA)
Abstract
A high-tightness fireproof check valve with a rear adjustable locking device comprises a valve housing, an interface, a valve ventilation backboard, an installation spring, a hinge master slice, a hinge sub slice, a valve blade, a sealing ring, a reset spring, a fireproof compression rod, a fixing screw, a compression rod spring, a fireproof slice, a safety hook and an adjusting screw; the sealing effect is good, and the smoke backflow and fire spreading during fire can be effectively prevented; the split modular design can adapt to the requirements of different ventilation hose calibers of the range hood by replacing valve casings with interfaces with different diameters.
Description
Technical Field
The utility model relates to a high-tightness fireproof check valve with a rear adjustable locking device, and belongs to the technical field of flue ventilation.
Background
In a city where a high building stands up, a building is a living place where people cannot leave. Most of the kitchen flues in the building are designed uniformly, one main flue penetrates through all layers of residential kitchens, a vent is reserved for each household, most of households can install a range hood, and a range hood pipeline is connected to the vent, so that kitchen oil smoke is conveniently discharged into the building ventilation flue through the range hood. In order to prevent the oil smoke from flowing backward into the kitchen, most households choose to install check valves at the flue ventilation openings. However, when a dangerous situation occurs, such as a fire disaster in a building, the check valve cannot prevent the fire, and the fire may flow backward to the home of other people through the flue, so that the fire spreads. Under the condition, the high-tightness fireproof check valve with the rear-mounted adjustable locking device can trigger the locking device under a high-temperature environment to firmly lock the valve blade of the check valve, thereby achieving the sealing effect and preventing the fire from spreading. Meanwhile, in order to adapt to the diameter sizes of the smoke exhaust hoses of different lampblack absorbers, the high-tightness fireproof check valve with the rear adjustable locking device is designed in a split module mode, and the diameter sizes of the smoke exhaust hoses of the lampblack absorbers can be adapted by replacing valve casings to select interfaces with different diameters so as to meet the requirements of different conditions.
Disclosure of Invention
The utility model provides a high-tightness fireproof check valve with a rear adjustable locking device for realizing ventilation, fireproof and check of a flue.
The technical scheme of the utility model is as follows:
a high-tightness fireproof check valve with a rear adjustable locking device comprises a valve housing, an interface, a valve ventilation backboard, an installation spring, a hinge master slice, a hinge sub slice, a valve blade, a sealing ring, a reset spring, a fireproof compression rod, a fixing screw, a compression rod spring, a fireproof slice, a safety hook and an adjusting screw; the edge of the valve shell is tilted to form a groove, a vent is arranged in the center of one surface of the groove, which protrudes, and an interface is arranged at the vent and used for connecting a ventilation hose of the range hood; the edge of the valve ventilation backboard is just matched with the edge of the groove formed by the valve shell, a ventilation opening is arranged at the center of the valve ventilation backboard, and a small section of inclined ventilation pipeline with height difference is arranged at the ventilation opening; the valve shell is fixedly connected with the valve ventilation backboard through screws, and the valve shell with the interfaces with different diameters can be replaced to adapt to the requirements of hose calibers of different range hoods; the two sides of the valve casing are respectively provided with an installation spring for the fixed installation of the check valve.
The valve ventilation backboard comprises a ventilation pipeline, a hinge main sheet, a hinge sub sheet, a hinge main sheet, a reset spring, a hinge main sheet and a valve ventilation backboard, wherein the hinge sub sheet is arranged on one side of the ventilation pipeline which is high, the hinge sub sheet is connected with the hinge main sheet through a screw, the screw is provided with the reset spring, one end of the reset spring is pressed on the hinge sub sheet, and the other end of the reset spring is pressed on the hinge main sheet; an upward tilting sheet is arranged at the contact position of the hinge master slice and the reset spring, and the elasticity of the reset spring can be finely adjusted by adjusting the upward tilting angle of the sheet; the tail end of the hinge master slice is designed in an upward tilting arrow shape, and the hinge master slice can play a limiting role on the fireproof compression rod when the fireproof compression rod works.
The hinge master slice is connected with the valve blade through a screw, and the valve blade can be firmly pressed on a ventilation pipeline of the valve ventilation backboard under the combined action of the reset spring and gravity; the sealing ring is arranged on the valve blade, so that the tightness of the valve can be effectively improved; when the range hood works, under the action of wind force, the valve blades are in an open state, so that normal ventilation can be realized; when the range hood is closed, the valve blade is in a closed state under the action of the reset spring and gravity, so that the backward flow of the oil smoke can be prevented.
The top end of the hinge sub-sheet is provided with a fireproof compression bar which is connected with the hinge sub-sheet through a screw, and the screw is provided with a compression bar spring; one end of the compression bar spring is clamped at the other screw arranged on the hinge sub-sheet, and the other end of the compression bar spring is pressed on two sides of the fixing screw arranged on the fireproof compression bar.
The side surface of the top end of the hinge sub-sheet is provided with a safety hook; the fireproof sheet is in a hook shape, and the tail end of the fireproof sheet is provided with a hole; one end of the fireproof sheet is hooked on a fixed screw on the fireproof compression bar, and the other end of the fireproof sheet is fixed on the safety hook through the hole; when the fireproof sheet is damaged, a new fireproof sheet can be replaced so as to ensure that the check valve is normally used; when the conflagration takes place, under the environment of high temperature, the fire prevention piece will fuse, then can trigger fire prevention depression bar work, under the effect of depression bar spring, the fire prevention depression bar will firmly press on the hinge master slice, firmly lock the valve blade.
The top of the fireproof compression bar is provided with an adjusting screw, and the pressure of the fireproof compression bar can be adjusted through the adjusting screw, so that the sealing effect of the valve blade is adjusted.
The beneficial effects of the utility model are as follows:
the high-tightness fireproof check valve with the rear adjustable locking device has good sealing effect and can effectively prevent lampblack from flowing backwards and fire from spreading during fire; the split modular design can adapt to the requirements of different ventilation hose calibers of the range hood by replacing valve casings with interfaces with different diameters.
Drawings
FIG. 1 is a perspective view of a high closure fire check valve with a rear adjustable locking device;
FIG. 2 is a top view of a high closure fire check valve with a rear adjustable locking device;
FIG. 3 is a front view of a high closure fire check valve with a rear adjustable locking device;
FIG. 4 is a side open view of a high closure fire check valve with a rear adjustable locking device;
FIG. 5 is a partial view of a high closure fire check valve latch with a rear adjustable latch;
FIG. 6 is a diagram of a high closure fire check valve locked state with a rear adjustable locking device;
wherein, 1, valve casing; 2. an interface; 3. a valve ventilation back plate; 4. installing a spring; 5. a hinge master; 6. hinge sub-sheets; 7. a valve blade; 8. a seal ring; 9. a return spring; 10. a fireproof compression bar; 11. a set screw; 12. a compression bar spring; 13. a fire protection sheet; 14. a safety hook; 15. and (5) adjusting a screw.
Detailed Description
The utility model is further illustrated, but not limited, by the following examples and figures of the specification.
Examples
As shown in the figure
A high-tightness fireproof check valve with a rear adjustable locking device comprises a valve housing 1, an interface 2, a valve ventilation back plate 3, an installation spring 4, a hinge master plate 5, a hinge sub plate 6, a valve blade 7, a sealing ring 8, a reset spring 9, a fireproof compression rod 10, a fixing screw 11, a compression rod spring 12, a fireproof sheet 13, a safety hook 14 and an adjusting screw 15; the edge of the valve shell 1 is tilted to form a groove, a vent is arranged in the center of one surface of the groove, which protrudes, and an interface 2 is arranged at the vent and used for connecting a ventilation hose of the range hood; the edge of the valve ventilation backboard 3 is just matched with the edge of the groove formed by the valve shell 1, a ventilation opening is arranged at the center of the valve ventilation backboard 3, and a small section of inclined ventilation pipeline with height difference is arranged at the ventilation opening; the valve shell 1 is fixedly connected with the valve ventilation backboard 3 through screws, and the valve shell 1 with the interfaces 2 with different diameters can be replaced to adapt to the requirements of hose calibers of different range hoods; the two sides of the valve casing 1 are respectively provided with a mounting spring 4 for the fixed mounting of the check valve.
A hinge sub-sheet 6 is arranged on one high side of the ventilation pipeline of the valve ventilation backboard 3, the hinge sub-sheet 6 is connected with the hinge master sheet 5 through a screw, a reset spring 9 is arranged on the screw, one end of the reset spring 9 is pressed on the hinge sub-sheet 6, and the other end is pressed on the hinge master sheet 5; the contact position of the hinge master plate 5 and the reset spring 9 is provided with an upward tilting sheet, and the elastic force of the reset spring 9 can be finely adjusted by adjusting the upward tilting angle of the sheet; the tail end of the hinge master plate 5 is designed to be an upward-tilting arrow, and the fireproof pressing rod 10 can be limited when the fireproof pressing rod 10 works.
The hinge master plate 5 is connected with the valve blades 7 through screws, and under the combined action of the reset spring 9 and gravity, the valve blades 7 can be firmly pressed on a ventilation pipeline of the valve ventilation backboard 3; the sealing ring 8 is arranged on the valve blade 7, so that the tightness of the valve can be effectively improved; when the range hood works, under the action of wind force, the valve blades 7 are in an open state, so that normal ventilation can be realized; when the range hood is closed, the valve blade 7 is in a closed state under the action of the return spring 9 and gravity, so that the backward flow of the oil smoke can be prevented.
The top end of the hinge sub-sheet 6 is provided with a fireproof compression bar 10, the fireproof compression bar 10 is connected with the hinge sub-sheet 6 through a screw, and the screw is provided with a compression bar spring 12; one end of the compression bar spring 12 is clamped at the other screw arranged on the hinge sub-sheet 6, and the other end of the compression bar spring is pressed at two sides of the fixing screw 11 arranged on the fireproof compression bar 10.
The side surface of the top end of the hinge sub-sheet 6 is provided with a safety hook 14; the fireproof sheet 13 is in a hook shape, and the tail end of the fireproof sheet is provided with a hole; one end of a fireproof sheet 13 is hooked on a fixing screw 11 on the fireproof compression bar 10, and the other end is fixed on a safety hook 14 through a hole; when the fireproof sheet 13 is damaged, a new fireproof sheet can be replaced so as to ensure the normal use of the check valve; when a fire disaster occurs, under the high-temperature environment, the fireproof sheet 13 is fused, the fireproof pressure rod 10 is triggered to work, and under the action of the pressure rod spring 12, the fireproof pressure rod 10 is firmly pressed on the hinge master 5, and the valve blade 7 is firmly locked.
The top of the fireproof compression bar 10 is provided with an adjusting screw 15, and the pressure of the fireproof compression bar 10 can be adjusted through the adjusting screw 15, so that the sealing effect of the valve blade 7 is adjusted.
Claims (6)
1. The high-tightness fireproof check valve with the rear adjustable locking device is characterized by comprising a valve housing, an interface, a valve ventilation backboard, an installation spring, a hinge master slice, a hinge sub-slice, valve blades, a sealing ring, a reset spring, a fireproof compression bar, a fixing screw, a compression bar spring, a fireproof slice, a safety hook and an adjusting screw; the edge of the valve shell is tilted to form a groove, a vent is arranged in the center of one surface of the groove, which protrudes, and an interface is arranged at the vent and used for connecting a ventilation hose of the range hood; the edge of the valve ventilation backboard is just matched with the edge of the groove formed by the valve shell, a ventilation opening is arranged at the center of the valve ventilation backboard, and a small section of inclined ventilation pipeline with height difference is arranged at the ventilation opening; the valve shell is fixedly connected with the valve ventilation backboard through screws, and the valve shell with the interfaces with different diameters can be replaced to adapt to the requirements of hose calibers of different range hoods; the two sides of the valve casing are respectively provided with an installation spring for the fixed installation of the check valve.
2. The high-tightness fireproof check valve with the rear adjustable locking device according to claim 1, wherein a hinge sub-sheet is arranged on a ventilation pipeline of the valve ventilation backboard, the hinge sub-sheet is connected with a hinge master sheet through a screw, a reset spring is arranged on the screw, one end of the reset spring is pressed on the hinge sub-sheet, and the other end of the reset spring is pressed on the hinge master sheet; an upward tilting sheet is arranged at the contact position of the hinge master slice and the reset spring, and the elasticity of the reset spring can be finely adjusted by adjusting the upward tilting angle of the sheet; the tail end of the hinge master slice is designed in an upward tilting arrow shape, and the hinge master slice can play a limiting role on the fireproof compression rod when the fireproof compression rod works.
3. The high-tightness fireproof check valve with the rear adjustable locking device according to claim 2, wherein the hinge master slice is connected with the valve blade through a screw, and the valve blade can be firmly pressed on a ventilation pipeline of the valve ventilation backboard under the combined action of a return spring and gravity; the sealing ring is arranged on the valve blade, so that the tightness of the valve can be effectively improved; when the range hood works, under the action of wind force, the valve blades are in an open state, so that normal ventilation can be realized; when the range hood is closed, the valve blade is in a closed state under the action of the reset spring and gravity, so that the backward flow of the oil smoke can be prevented.
4. The high-tightness fireproof check valve with the rear adjustable locking device according to claim 3, wherein the top end of the hinge sub-sheet is provided with a fireproof pressure rod, the fireproof pressure rod is connected with the hinge sub-sheet through a screw, and the screw is provided with a pressure rod spring; one end of the compression bar spring is clamped at the other screw arranged on the hinge sub-sheet, and the other end of the compression bar spring is pressed on two sides of the fixing screw arranged on the fireproof compression bar.
5. The high-tightness fireproof check valve with the rear adjustable locking device according to claim 4, wherein a safety hook is arranged on the side surface of the top end of the hinge sub-sheet; the fireproof sheet is in a hook shape, and the tail end of the fireproof sheet is provided with a hole; one end of the fireproof sheet is hooked on a fixed screw on the fireproof compression bar, and the other end of the fireproof sheet is fixed on the safety hook through the hole; when the fireproof sheet is damaged, a new fireproof sheet can be replaced so as to ensure the normal use of the check valve.
6. The high-tightness fireproof check valve with the rear adjustable locking device according to claim 5, wherein the top end of the fireproof compression bar is provided with an adjusting screw, and the pressure of the fireproof compression bar can be adjusted through the adjusting screw, so that the sealing effect of the valve blade is adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320009483.6U CN219796131U (en) | 2023-01-04 | 2023-01-04 | High-tightness fireproof check valve with rear adjustable locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320009483.6U CN219796131U (en) | 2023-01-04 | 2023-01-04 | High-tightness fireproof check valve with rear adjustable locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219796131U true CN219796131U (en) | 2023-10-03 |
Family
ID=88152059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320009483.6U Active CN219796131U (en) | 2023-01-04 | 2023-01-04 | High-tightness fireproof check valve with rear adjustable locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219796131U (en) |
-
2023
- 2023-01-04 CN CN202320009483.6U patent/CN219796131U/en active Active
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