CN210034547U - Double-open type metal flue check valve - Google Patents
Double-open type metal flue check valve Download PDFInfo
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- CN210034547U CN210034547U CN201920188201.7U CN201920188201U CN210034547U CN 210034547 U CN210034547 U CN 210034547U CN 201920188201 U CN201920188201 U CN 201920188201U CN 210034547 U CN210034547 U CN 210034547U
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Abstract
The utility model provides a double open type metal flue check valve has solved the current oil extraction cigarette check valve can not open completely, the easy adhesion in case baffle edge and the poor problem of fire behavior. The technical scheme is as follows: the metal valve body is internally provided with a baffle type metal valve core inclined towards the closing direction, the edge of the baffle type valve core is provided with a rubber sealing ring, a plurality of quickly-installed torsion springs are uniformly distributed on the installation edge of the valve body, a longitudinal double rotating shaft inclined towards the closing direction is arranged in the middle of the metal valve body, the baffle type metal valve core is a double-sector semicircular metal baffle and is symmetrically arranged in the valve body through the double rotating shaft, and the pressure welding surface of the rubber sealing ring is provided with a sealing convex edge. The opening of the valve core is not limited by the opening of the flue port, the flue is not shielded, the edges of the valve core baffle plates are not easy to adhere, and the fire resistance is strong.
Description
Technical Field
The utility model relates to a kitchen flue oil extraction cigarette check valve, especially a double open type metal flue check valve are applicable to kitchen shared flue and indoor oil extraction cigarette pipeline intercommunication.
Background
The oil smoke exhaust outlet of each household kitchen of the resident of the existing building is a shared smoke exhaust channel which is communicated up and down, an oil smoke exhaust check valve is installed at the oil smoke exhaust outlet in order to prevent the smell of the inverted smoke from returning, the valve cover is generally made of plastic materials, the sealing edge of the valve cover is easy to adhere to the channel, the fire is not prevented, and the fire hazard safety hazard is easily caused. According to the requirements of the national ministry of construction, the flue check valve has a fireproof function. The applicant of the present invention discloses in patent document No. CN206545713U, a fire-proof oil smoke discharging check valve for all-metal kitchen shared flue, which comprises: the metal valve body, the metal smoke tube and the metal valve plate with the periphery embedded with the sealing strips are connected to the upper portion of the metal smoke tube through hinges, sealing rubber strips are arranged on the installation edge of the metal valve body, and a plurality of rapid installation torsion springs are uniformly distributed. Although the valve has the function of isolating oil smoke, the baffle type valve core is circular, the flue is also of a cylindrical structure, the opening of the baffle type valve core is limited by the shape of the flue, so that the valve cannot be completely opened, the ventilation quantity is blocked, the ventilation effect is reduced, and the baffle type valve core cannot be automatically closed due to the fact that the baffle type valve core is received when a fire disaster happens to any one of two sides of a channel of the check valve, so that the valve needs to be integrally turned over, the switch is difficult, and potential safety hazards still exist.
Disclosure of Invention
The utility model aims at providing a double open type metal flue check valve has solved current oil extraction cigarette check valve can not open completely, the easy adhesion in case baffle edge and the poor problem of fire behavior. The opening of the valve core is not limited by the opening of the flue port, the flue is not shielded, the edges of the valve core baffle plates are not easy to adhere, and the fire resistance is strong.
The technical scheme of the utility model is that: this double open type metal flue check valve includes the metal valve body of being connected with logical chimney, is provided with the baffling metal case to closing direction slope in the metal valve body, and baffling case edge is provided with rubber seal, is provided with a plurality of quick installation torsional springs at valve body installation limit equipartition, and the technical essential is: the middle of the metal valve body is provided with a longitudinal double-rotating shaft inclined towards the closing direction, the baffle type metal valve core is a double-fan semicircular metal baffle and is symmetrically arranged in the valve body through the double-rotating shaft, and the pressure joint surface of the rubber sealing ring is provided with a sealing convex edge.
The cross section of the sealing convex rib is in a protruding tip shape.
The connecting end of the semicircular metal baffle is provided with an integrated shaft sleeve which is sleeved and connected with the rotating shaft through the shaft sleeve.
The inboard edge of rubber seal is provided with integral type rubber and detains, detains the hole joint with semicircular metal baffle through rubber.
The middle of the rubber sealing ring is provided with a sealing connection section which covers the double rotating shafts and is provided with an arch part, and the sealing connection section is also provided with the integrated rubber buckle and the buckle hole joint corresponding to the semicircular metal baffle.
The metal is stainless steel.
The utility model has the advantages and beneficial effects that: because the double-fan semicircular metal baffles are arranged in the valve through the inclined longitudinal double rotating shaft, the metal valve core can be closed from the middle to two sides, so that the opening and closing of the baffle type metal valve core are not limited by the opening of the flue opening and can be completely opened, the opening angle is larger than that of the integrated baffle, and the opening radius of the double-fan semicircular metal baffles is smaller, so that the opening is convenient; because adopt metal material case and set up rubber seal and seal the valve body tang, make fire behavior obtain very big improvement, utilize the sealed bead crimping metal valve body tang at edge, form the viscidity adhesion that antiseized seal structure can avoid the oil smoke to form, prevent that the case can't open. And moreover, the valve core made of metal materials has the advantages of high temperature resistance, corrosion resistance, long service life and the like, so that the defect that the baffle cannot be completely opened in the circular valve barrel is overcome, and the valve core is not limited by the opening of the flue opening, does not shield the flue, is convenient to install and the like.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
Fig. 1 is a schematic longitudinal sectional structural view of an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1A;
FIG. 3 is a schematic structural view of an outlet end of an embodiment of the present invention;
FIG. 4 is a schematic view of the structure of the double-leaf semicircular metal baffle of the present invention;
FIG. 5 is a schematic structural view of the rubber seal ring of the present invention;
FIG. 6 is a cross sectional view of the connection of the double-leaf semicircular metal baffle plate and the rubber seal ring of the present invention;
FIG. 7 is a schematic structural view of an open state of a flapper valve core according to an embodiment of the present invention;
fig. 8 is a schematic view of a structure of a usage status of the embodiment of the present invention.
The sequence numbers in the figures illustrate: the range hood comprises a valve body 1, a baffle type valve core 2, a metal baffle 2-1, a rubber sealing ring 2-2, a sealing rib 2-3, a rubber buckle 2-4, a buckle hole 2-5, a sealing connection section 2-6, a quick installation torsion spring 3, a rotating shaft 4, a rotating shaft bracket 5, a smoke tube 6, a rotating shaft sleeve 7, a common flue 8 and a smoke ventilator pipe 9.
Detailed Description
According to the detailed description of the present invention in fig. 1-8, the embodiment is as shown in fig. 1 to 6, a double open type metal flue check valve, which comprises a metal valve body 1, a baffle type metal valve core 2 and a smoke through tube 6, wherein the valve body 1 is of a cylinder shell type, the smoke through tube 6 is arranged at the inlet end of the valve body, the interference fit is formed, the interference fit is pressed in the smoke through tube, the inner seal is tight, and a plurality of torsion springs 3 are rapidly installed and uniformly distributed at the installation edge of the valve body. The metal valve body 1, the baffle type metal valve core 2 and the smoke through tube 6 can be made of stainless steel materials or other metal materials capable of preventing oil smoke corrosion, preferably stainless steel components, are manufactured by a stainless steel stamping and stretching process, and have the advantages of high temperature resistance, corrosion resistance, long service life and the like. The metal valve body is provided with a longitudinal double-rotating shaft 4 which inclines towards the closing direction in the middle, two ends of the rotating shaft are fixed on the metal valve body through a rotating shaft support 5, the baffle type metal valve core is a double-fan semicircular metal baffle 2-1 and is symmetrically arranged in the valve body through the double rotating shafts, the baffle type metal valve core is also arranged to incline towards the closing direction and is closed by the self gravity, and the metal valve core is flexible in switching and tight in sealing. The optimal angle between the metal baffle 2-1 and the radial direction of the valve body in the closed state is 17 degrees. The edge of the baffle type valve core is provided with a rubber sealing ring 2-2, and the pressure joint surface of the rubber sealing ring is provided with a sealing convex edge 2-3 which is used for being pressed on a spigot of a smoke through tube 6 to seal the passage in a closing state.
As a further improvement, the cross section of the sealing convex edge 2-3 can be in a protruding tip shape to form an anti-sticking sealing structure, so that the adhesion of sticky substances formed by oil smoke can be avoided. Can be formed with integral type pivot cover 7 with semicircular metal baffle's link, be connected with 4 suits of pivot through the pivot cover, the integral type axle sleeve processing of being convenient for of this structure is drawn into 4 integral type structures of metal rotating shaft and is highly concentric, rotates in a flexible way. The inner side edge of the rubber sealing ring 2-2 can be also provided with an integrated rubber buckle 2-4 which is clamped with a buckling hole 2-5 of the semicircular metal baffle 2-1 through the rubber buckle to form a multi-point plugging anti-separation structure with the metal baffle, the rubber buckle plays a role of a rubber cushion, and a certain gap is reserved between the baffle and the rubber buckle to form elastic sealing. The middle part of the rubber sealing ring can be provided with a sealing connection section 2-6 which covers the double rotating shafts and is provided with an arch part, and the sealing connection section is also provided with an integrated rubber buckle which is in buckling hole clamping connection with the semicircular metal baffle plate, so that the firmness of the rubber sealing ring is increased, the assembly is facilitated, and the sealing effect is achieved.
As shown in fig. 7 and 8, when the range hood is connected to the range hood duct, the pressure of the flue gas in the chimney pushes the two sides of the flapper valve core to the middle, the flapper valve core is in an open state, the chimney is connected to the range hood duct 9, and the internal flue gas is pumped into the common flue 8.
In conclusion, the purpose of the utility model is realized.
Claims (7)
1. The utility model provides a double open type metal flue check valve, it includes the metal valve body of being connected with logical chimney, is provided with the baffling formula metal case to closing direction slope in the metal valve body, and baffling formula case edge is provided with rubber seal, is provided with a plurality of torsional springs of installing fast, its characterized in that at valve body installation limit equipartition: the middle of the metal valve body is provided with a longitudinal double-rotating shaft inclined towards the closing direction, the baffle type metal valve core is a double-fan semicircular metal baffle and is symmetrically arranged in the valve body through the double-rotating shaft, and the pressure joint surface of the rubber sealing ring is provided with a sealing convex edge.
2. The double open metal flue check valve of claim 1 wherein: the cross section of the sealing convex rib is in a protruding tip shape.
3. The double open metal flue check valve of claim 1 wherein: the connecting end of the semicircular metal baffle is provided with an integrated shaft sleeve which is sleeved and connected with the rotating shaft through the shaft sleeve.
4. The double open metal flue check valve of claim 1 wherein: the inboard edge of rubber seal is provided with integral type rubber and detains, detains the hole joint with semicircular metal baffle through rubber.
5. A double open metal flue check valve according to claim 4 wherein: the middle of the rubber sealing ring is provided with a sealing connection section which covers the double rotating shafts and is provided with an arch part, and the sealing connection section is also provided with the integrated rubber buckle and the buckle hole joint corresponding to the semicircular metal baffle.
6. A double open metal flue check valve according to claim 5 wherein: the cross section of the sealing convex edge is in a protruding tip shape; the connecting end of the semicircular metal baffle is provided with an integrated shaft sleeve which is sleeved and connected with the rotating shaft through the shaft sleeve.
7. A double open metal flue check valve according to any one of claims 1 to 6 wherein: the metal is stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920188201.7U CN210034547U (en) | 2019-02-03 | 2019-02-03 | Double-open type metal flue check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920188201.7U CN210034547U (en) | 2019-02-03 | 2019-02-03 | Double-open type metal flue check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210034547U true CN210034547U (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920188201.7U Active CN210034547U (en) | 2019-02-03 | 2019-02-03 | Double-open type metal flue check valve |
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| Country | Link |
|---|---|
| CN (1) | CN210034547U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114110217A (en) * | 2021-11-18 | 2022-03-01 | 新乡航空工业(集团)有限公司 | One-way valve and manufacturing method thereof |
-
2019
- 2019-02-03 CN CN201920188201.7U patent/CN210034547U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114110217A (en) * | 2021-11-18 | 2022-03-01 | 新乡航空工业(集团)有限公司 | One-way valve and manufacturing method thereof |
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