CN212429793U - Opening device and gas water heater comprising same - Google Patents
Opening device and gas water heater comprising same Download PDFInfo
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- CN212429793U CN212429793U CN202021130620.4U CN202021130620U CN212429793U CN 212429793 U CN212429793 U CN 212429793U CN 202021130620 U CN202021130620 U CN 202021130620U CN 212429793 U CN212429793 U CN 212429793U
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- valve plate
- opening device
- impeller
- gear
- rack
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Abstract
The utility model discloses an opening device and contain its gas heater, its exhaust port that is used for opening and closes the collection petticoat pipe, opening device includes the valve plate, the valve plate cover completely in the exhaust port is relative the exhaust port can be opened, opening device still includes drive assembly and impeller, the impeller sets up in the collection petticoat pipe, drive assembly by impeller drive, and set up to be in the impeller receives the wind back drive the valve plate is opened. The valve plate is arranged in the smoke collecting hood by the opening device, the impeller is driven to rotate by wind of the smoke exhaust port, the rotation of the impeller is converted into acting force applied to the valve plate through the transmission assembly, the smoke exhaust port is further driven to open by the valve plate, and the problem that the valve plate is blocked or is difficult to open is solved.
Description
Technical Field
The utility model relates to an opening device and contain its gas heater.
Background
In winter, outside cold air easily enters the gas water heater from the smoke tube, so that water in the pipeline is frozen, water path parts are burst, and the use and equipment safety of a user are seriously affected. Therefore, all be provided with the down-draft prevention baffle of opening in most smoke exhaust pipe, nevertheless when the pipe deformation of discharging fume, perhaps smoke stain piles up, appear often that the baffle passes through the wind-force of exhaust fan and open the difficulty, influence the user and use. At present, in order to guarantee the flexible opening of the baffle, a certain gap is usually reserved between the baffle and the inner wall of the pipeline, however, cold air enters the gas water heater or the range hood through the gap, and water in the pipeline freezes to damage equipment. Therefore, the method of arranging the gap between the baffle and the inner wall of the pipeline cannot solve the fundamental problem and has larger potential safety hazard of equipment.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an opening device and contain its gas heater in order to overcome the defect that the baffle of preventing downdraught among the prior art opened the difficulty.
The utility model discloses an above-mentioned technical problem is solved through following technical scheme:
the utility model provides an opening device, its exhaust port that is used for opening and closes collection petticoat pipe, opening device includes the valve plate, the valve plate cover completely in the exhaust port is relative the exhaust port can be opened, opening device still includes drive assembly and impeller, the impeller sets up in the collection petticoat pipe, drive assembly by the impeller drive, and set up to be in the impeller receives the wind back drive the valve plate is opened.
In this scheme, set up the impeller in the collection petticoat pipe, utilize the wind drive impeller rotation of flow in the collection petticoat pipe, the rotation of impeller turns into an effort of applying the valve plate through drive assembly, and then drives the valve plate and opens the exhaust port. The transmission assembly converts the wind power for driving the impeller into the driving force to open the valve plate in the conversion process, extra energy is not required to be consumed in the whole opening process, and the problem that the valve plate is blocked or is difficult to open is solved.
Preferably, the transmission assembly includes a rack and pinion mechanism by which rotation of the impeller is converted into horizontal movement imparted to the valve plate.
In this scheme, rack and pinion connects reliably, and is durable, even receive a small amount of oil smoke erosion, does not influence its operation yet, and life is high.
Preferably, the rack and pinion mechanism comprises a sun gear, a planet gear, a ring gear, a planet carrier gear and a rack; the impeller is coaxially connected with the sun gear, the planetary gear is installed on the support of the planet carrier gear, the sun gear and the planetary gear are located in the gear ring, the planetary gear is meshed with the sun gear in an external mode and meshed with the gear ring in an internal mode, the planet carrier gear is meshed with the rack, and the rack drives the valve plate.
In this scheme, utilize big drive ratio between sun gear and the planet wheel, turn into the rotation of impeller and drive power drive rack, the rethread rack transmits and opens the exhaust port for the valve plate.
Preferably, the transmission assembly further comprises a connecting piece, one end of the connecting piece is connected to the valve plate, and the other end of the connecting piece is connected to the rack, wherein the connecting piece is connected to one end of the valve plate and provided with a plurality of connecting points, and the connecting points are arranged at intervals along the moving direction of the rack.
In this scheme, the connecting piece is convenient for adjust the interval between rack and the valve plate, also is convenient for transmit the direction of drive power simultaneously. The connecting piece is connected to the valve plate through a plurality of tie points, improves the atress of connecting piece, prevents that rack from twisting, crooked when driving the valve plate, improves the accuracy of sliding motion.
Preferably, the number of the valve plates is two, the two valve plates are respectively driven by one rack, the two racks are respectively located on two sides of the planet carrier gear, and the two valve plates are driven along opposite directions.
In this scheme, two valve plates are compared with a valve plate, and the drive power of valve plate reduces, and the gliding stroke of valve plate shortens, can open fast or close the exhaust port.
Preferably, the fume collecting hood comprises a fume exhaust pipe, and the outer edges of the two valve plates are respectively provided with an edge part which extends to the fume exhaust pipe in a convex manner; when the two valve plates seal the smoke exhaust port together, the edge portion wraps the smoke exhaust pipe.
In this scheme, the outward flange of valve plate is provided with limit portion, and when the valve plate was closed, limit portion wrapped up the exhaust port, improved sealed effect, prevented that outdoor air current from flowing backward.
Preferably, the opening device further comprises an elastic element acting on the valve plate and providing a restoring force to restore the valve plate from the open state to the closed state.
In this scheme, when there is not wind to flow in the collection petticoat pipe, impeller stall, drive assembly's drive power is zero this moment, and elastic element provides a restoring force and resets the valve plate to the closed position, prevents that the backdraft from getting into the collection petticoat pipe.
Preferably, the valve plate is opened in translation relative to the smoke exhaust.
In this scheme, the translation is opened and is only needed to overcome the frictional force of valve plate, need not to overcome the gravity of valve plate, and the power of drive valve plate is less, opens level and smooth and easy, and the reliability is high.
Preferably, the opening device further comprises a guide rail, the guide rail is arranged in the smoke collecting hood, and the valve plate is limited on the guide rail in a sliding manner.
In the scheme, the valve plate is arranged on the guide rail and can slide along the guide rail, so that the driving force of the valve plate during opening and closing is reduced, and the valve plate slides smoothly; meanwhile, due to the guidance of the guide rail, the sliding position of the valve plate is ensured to be accurate.
The utility model provides a gas water heater, its includes the collection petticoat pipe, gas water heater still includes foretell opening device, opening device set up in the collection petticoat pipe.
In this scheme, this opening device relies on the kinetic energy that the flue gas flows to drive the valve plate through drive assembly when opening the exhaust port, relies on elastic element's elasticity drive valve plate when closing the exhaust port, and the full automatic control of switch of valve plate need not additionally energy consumption in whole journey, and energy saving and consumption reduction is effectual.
On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.
The utility model discloses an actively advance the effect and lie in: the valve plate is arranged in the smoke collecting hood by the opening device, the impeller is driven to rotate by wind of the smoke exhaust port, the rotation of the impeller is converted into acting force applied to the valve plate through the transmission assembly, and then the valve plate is driven to open the smoke exhaust port. The transmission assembly converts the wind power for driving the impeller into a driving force in the horizontal direction to drive the valve plate to open, and the problem that the valve plate is blocked or difficult to open is solved.
Drawings
Fig. 1 is a schematic perspective view of an opening device according to a preferred embodiment of the present invention.
Fig. 2 is a schematic view of an opening state of the opening device according to a preferred embodiment of the present invention.
Fig. 3 is a schematic side view of an opening device according to a preferred embodiment of the present invention.
Fig. 4 is an exploded schematic view of a gear mechanism according to a preferred embodiment of the present invention.
Description of reference numerals:
a smoke collecting hood 10, a smoke exhaust port 10a
Rear cover 40
Valve plate 1
Edge 11
Sun gear 21
Planet carrier gear 24
Connecting piece 5
Elastic element 6
Detailed Description
The present invention will be more clearly and completely described below by way of examples and with reference to the accompanying drawings, but the present invention is not limited thereto.
As shown in fig. 1 to 4, the present embodiment discloses an opening device provided in a smoke collecting hood 10 for opening and closing a smoke discharge port 10a of the smoke collecting hood 10, the opening device including: valve plate 1, sun gear 21, planet gear 22, ring gear 23, planet carrier gear 24, rack 25, impeller 3, guide rail 4, connecting piece 5 and elastic element 6.
As shown in fig. 1, two guide rails 4 are arranged inside the smoke collecting hood 10, the valve plate 1 is limited on the guide rails 4 in a sliding manner, so that the valve plate 1 can slide conveniently, and the valve plate 1 can slide to an accurate position every time by means of guidance of the guide rails 4. The valve plate 1 completely covers the exhaust port 10a and is translatably openable relative to the exhaust port 10 a. When the valve plate 1 is opened in a translation mode, only the friction force of the valve plate 1 needs to be overcome, the force for driving the valve plate 1 is small, and the valve plate 1 is opened smoothly. The transmission assembly 2 is driven by the impeller 3 and is arranged to drive the valve plate 1 open after the impeller 3 is subjected to wind.
In the embodiment, the valve plate 1 is arranged in the smoke collecting hood 10, the impeller 3 is driven to rotate by wind, the rotation of the impeller 3 is converted into an acting force applied to the valve plate 1 through the transmission assembly 2, and then the valve plate 1 is driven to open the smoke exhaust port 10 a. The transmission assembly 2 converts the wind power for driving the impeller 3 into driving force, drives the valve plate 1 to be opened, does not need to consume extra energy in the whole opening process, and solves the problem that the valve plate 1 is blocked or is difficult to open. In this embodiment, the flowing kinetic energy of the wind in the fume collecting hood 10 comes from the exhaust fan of the gas water heater. In other embodiments, the kinetic energy of the wind flow may also be from the combustion gas induced airflow flow.
As shown in fig. 2, the guide rail 4 is sleeved with an elastic element 6, one end of the elastic element 6 is fixed on the guide rail 4, the other end of the elastic element 6 acts on the valve plate 1, and the elastic element 6 provides a restoring force for restoring the valve plate 1 from the open state to the closed state. When no wind exists in the fume collecting hood 10, the impeller 3 stops rotating, the driving force of the transmission assembly 2 is zero at the moment, and the elastic element 6 provides restoring force to reset the valve plate 1 to the closing position, so that the downdraft is prevented from entering the fume collecting hood 10. The elastic element 6 of the present embodiment is a spring.
As shown in fig. 2-4, the transmission assembly 2 includes a rack and pinion mechanism, and the rotation of the impeller 3 is converted into a force applied to the valve plate 1 through the rack and pinion mechanism, so as to drive the valve plate 1 to move horizontally. The gear rack is connected reliably, and is durable, and life is high, even receive a small amount of oil smoke erosion, does not influence the operation yet.
As shown in fig. 4, the rack and pinion mechanism includes a sun gear 21, three pinion gears 22, a ring gear 23, a carrier gear 24, and a rack 25; the impeller 3 is coaxially connected to a sun gear 21, three planet gears 22 are mounted on a carrier of a planet carrier gear 24, the sun gear 21 and the planet gears 22 are located in a ring gear 23, the planet gears 22 are externally meshed with the sun gear 21 and internally meshed with the ring gear 23, the planet carrier gear 24 is meshed with a rack 25, and the rack 25 acts on the valve plate 1 through a connecting piece 5. The gear mechanism is disposed in the accommodating cavity defined by the front cover 30 and the rear cover 40, and is used for preventing dust and prolonging the service life of the gear mechanism.
The gear rack mechanism converts the rotation of the impeller 3 into larger driving force by using the difference of the transmission ratio between the sun wheel and the planet wheel, drives the rack 25, and then transmits the driving force to the valve plate 1 through the rack 25 to open the smoke outlet 10 a.
In order to facilitate the adjustment of the direction of the driving force transmitted by the rack 25, the transmission assembly 2 further comprises a connecting piece 5, the connecting piece 5 is of a V-shaped structure, the open end of the V-shaped structure is connected to the bottom surface of the valve plate 1 along the moving direction of the valve plate 1, the closed end of the V-shaped structure is connected to the rack 25, the stress of the connecting piece 5 can be improved by the V-shaped structure, the rack 25 is prevented from twisting and skewing when driving the valve plate 1, and the accuracy of sliding action.
As shown in fig. 2, in order to rapidly open and close the exhaust port 10a, the number of the valve plates 1 is two, and the two valve plates 1 are respectively driven by a rack 25, and the two racks 25 are respectively located at both sides of the planet carrier gear 24, so that the two valve plates 1 are driven in opposite directions. Meanwhile, the outer edges of the two valve plates 1 are provided with edge parts 11 which extend and protrude towards the smoke exhaust pipe 20, and the joint surfaces of the two valve plates 1 are not provided with the edge parts 11. When the two valve plates 1 seal the smoke outlet 10a together, the edge part 11 wraps the smoke exhaust pipe 20 of the smoke collecting cover 10, so that the sealing effect is improved, and the outdoor airflow is prevented from flowing backwards. Compared with one valve plate 1, the two valve plates 1 have the advantages that the driving force is reduced, the sliding stroke of the valve plates 1 is shortened, and the smoke exhaust port 10a can be opened or closed quickly.
The utility model also provides a gas heater, it includes collection petticoat pipe 10 and foretell opening device, and opening device sets up in the collection petticoat pipe. When the exhaust port 10a of the smoke collecting hood 10 is opened, the valve plate 1 is driven to be opened by the flowing kinetic energy of wind generated by the work of the gas water heater through the transmission component 2, and when the exhaust port 10a is closed, the valve plate 1 is driven to be closed by the elasticity of the elastic element 6, so that the whole-process automatic operation is realized, the additional energy consumption is not needed, and the energy saving and consumption reducing effects are good.
Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (10)
1. The utility model provides an opening device, its exhaust port that is used for opening and closing collection petticoat pipe, opening device includes the valve plate, the valve plate cover completely in the exhaust port is relative the exhaust port can be opened, its characterized in that, opening device still includes drive assembly and impeller, the impeller sets up in the collection petticoat pipe, drive assembly by the impeller drive, and set up to be in the impeller receives the drive behind the wind the valve plate is opened.
2. The opening device of claim 1, wherein the transmission assembly comprises a rack and pinion mechanism by which rotation of the impeller is translated into horizontal movement of the application of the valve plate.
3. The opening device of claim 2, wherein the rack and pinion mechanism comprises a sun gear, a planet gear, a ring gear, a planet carrier gear, and a rack gear; the impeller coaxial coupling in the sun gear, planetary gear install in on planetary carrier gear's the support, sun gear with planetary gear is located the inside of ring gear, planetary gear with sun gear external toothing and with the ring gear internal toothing, planetary carrier gear with the rack toothing, the rack drive the valve plate.
4. The opening device of claim 3, wherein the transmission assembly further comprises a connecting member having one end connected to the valve plate and the other end connected to the rack, wherein the connecting member has a plurality of connecting points at one end connected to the valve plate, the plurality of connecting points being spaced apart in a moving direction of the rack.
5. The opening device according to claim 3, wherein said valve plates are two in number and are driven by one of said racks, respectively, said two racks being located on either side of said carrier gear, respectively, said two valve plates being driven in opposite directions.
6. The opening device of claim 5, wherein the fume collecting hood comprises a fume exhaust pipe, and the outer edges of the two valve plates are provided with edge parts which extend in the direction of the fume exhaust pipe and are convex; when the two valve plates close the smoke exhaust port together, the edge portion wraps the smoke exhaust pipe.
7. The opener apparatus of any one of claims 1 to 6, further comprising a resilient member that acts on the valve plate and provides a restoring force that returns the valve plate from the open condition to the closed condition.
8. The opening device of any one of claims 1 to 6, wherein the valve plate is opened in translation relative to the smoke exhaust.
9. The opening device according to any one of claims 1 to 6, further comprising a guide rail disposed within the fume collection hood, the valve plate being slidably retained on the guide rail.
10. A gas water heater including a smoke collection hood, characterized in that the gas water heater further includes an opening device according to any one of claims 1 to 9, the opening device being provided within the smoke collection hood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021130620.4U CN212429793U (en) | 2020-06-17 | 2020-06-17 | Opening device and gas water heater comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021130620.4U CN212429793U (en) | 2020-06-17 | 2020-06-17 | Opening device and gas water heater comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212429793U true CN212429793U (en) | 2021-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021130620.4U Active CN212429793U (en) | 2020-06-17 | 2020-06-17 | Opening device and gas water heater comprising same |
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| Country | Link |
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| CN (1) | CN212429793U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116551229A (en) * | 2023-07-04 | 2023-08-08 | 山东威猛工程机械有限公司 | Panel welding protection machanism |
-
2020
- 2020-06-17 CN CN202021130620.4U patent/CN212429793U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116551229A (en) * | 2023-07-04 | 2023-08-08 | 山东威猛工程机械有限公司 | Panel welding protection machanism |
| CN116551229B (en) * | 2023-07-04 | 2023-09-19 | 山东威猛工程机械有限公司 | Panel welding protection machanism |
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