CN111692608B

CN111692608B - Opening device and water heater comprising same

Info

Publication number: CN111692608B
Application number: CN202010556088.0A
Authority: CN
Inventors: 吴帅; 朱海龙; 魏苗苗
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2022-04-15
Anticipated expiration: 2040-06-17
Also published as: CN111692608A

Abstract

The invention discloses an opening device and a water heater comprising the same, wherein the opening device is used for opening and closing a smoke exhaust port of a smoke collecting hood, the opening device comprises a trigger piece and a valve plate, the trigger piece and the valve plate jointly close the smoke exhaust port, the valve plate can be turned and opened relative to the smoke exhaust port, and the valve plate is limited at the position for closing the smoke exhaust port by the trigger piece; when the trigger piece is opened in a translation mode relative to the smoke exhaust port, the trigger piece releases the limit of the valve plate. This opening device is based on the mode that the trigger piece opened through the translation for the valve plate realizes the upset to open because of removing spacing after the trigger piece opens the inside and outside passageway of intercommunication of exhaust port, and avoids the exhaust port under by the closed condition completely, leads to directly opening the valve plate through the upset mode because of the windage problem and is difficult to implement, opens difficult scheduling problem.

Description

Opening device and water heater comprising same

Technical Field

The invention relates to an opening device and a water heater comprising the same.

Background

In winter, outside cold air easily enters the 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. Consequently, all be provided with the anti-downdraft baffle of opening through the translation mode in most discharge fume, nevertheless when discharging fume the pipe and warp, perhaps smoke stain piles up, appear the baffle often and open the difficulty, problem that can't open completely influences the user and uses. 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 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.

Disclosure of Invention

The invention aims to overcome the defect that a baffle plate in the prior art cannot be opened flexibly, and provides an opening device and a water heater comprising the same.

The invention solves the technical problems through the following technical scheme:

an opening device is used for opening and closing a smoke exhaust port of a smoke collecting hood and comprises a trigger piece and a valve plate, wherein the trigger piece and the valve plate jointly close the smoke exhaust port, the valve plate can be turned over and opened relative to the smoke exhaust port, and the valve plate is limited by the trigger piece at a position for closing the smoke exhaust port;

when the trigger piece is opened in a translation mode relative to the smoke exhaust port, the trigger piece releases the limit of the valve plate.

In this scheme, this opening device passes through the mode that the translation was opened based on the trigger piece for the valve plate realizes the upset to open because of removing spacing after the trigger piece opens the inside and outside passageway of intercommunication of exhaust port, and avoid the exhaust port under by the encapsulated situation completely, lead to directly opening the valve plate through the upset mode because of the windage problem and be difficult to implement, open difficult scheduling problem. This opening device opens and opens the dual mode through utilizing the translation simultaneously to open and overturn to combine the respective advantage of dual mode, effectively solved all kinds of valve plates that are used for sealing the exhaust port among the prior art and opened the problem of difficulty.

Preferably, one end of the valve plate is hinged to the inner side of the fume collecting hood, and when the trigger releases the limit on the valve plate, the other end of the valve plate is turned downwards to open through self gravity.

In this scheme, the one end of valve plate is articulated, is relieved spacing back when the valve plate, and the valve plate of being convenient for relies on self gravity to overturn downwards and open. The opening process depends on the self gravity of the valve plate, extra power drive is not needed, and the opening sensitivity can be adjusted according to the weight of the valve plate.

Preferably, the valve plate is provided with a driven part at one end in a hinged manner, the trigger part is provided with a driving part corresponding to the driven part, and when the trigger part is closed relative to the smoke exhaust port in a translation manner, the driving part acts on the driven part and drives the valve plate to be turned and closed.

In this scheme, be provided with initiative portion on triggering the piece, be provided with the driven part on the valve plate, initiative portion triggers the driven part, realizes closing of valve plate.

Preferably, the driven parts are respectively arranged at two ends of the valve plate in the width direction, and the driving parts in one-to-one correspondence with the driven parts are arranged on the trigger part.

In this scheme, two driven portions and two initiative portion cooperations, the atress of the balanced valve plate of being convenient for to compare drive power bigger, the reliability is higher with a driven portion and initiative portion cooperation.

Preferably, when the trigger closes the smoke exhaust port, one end of the trigger abuts against the valve plate and limits the valve plate at a position for closing the smoke exhaust port;

when the trigger piece is opened in a translation mode relative to the smoke exhaust port, one end of the trigger piece releases the limit of the valve plate.

In this scheme, trigger the one end and the valve plate butt of piece, realize the spacing of valve plate. The trigger piece removes the spacing to the valve plate when moving to the direction of keeping away from the valve plate, and then opens the exhaust port.

Preferably, when the trigger piece is closed in a translational manner relative to the smoke exhaust port, one end, close to the valve plate, of the trigger piece drives the valve plate to be turned and closed.

Preferably, the trigger is a secondary valve plate.

In this scheme, trigger spare closes the exhaust port for vice valve plate and valve plate jointly, can reduce the area and the drive power of valve plate, and the operation of opening and closing the process of valve plate is more nimble. Meanwhile, the auxiliary valve plate is firstly opened to communicate the inside and the outside of the smoke outlet, so that the problem that the valve plate is difficult to open due to the fact that air pressure difference is generated on the two sides of the valve plate due to wind resistance is solved.

Preferably, the opening device further comprises a power unit which drives the trigger to switch between translational opening and translational closing.

In this scheme, through power unit drive trigger piece, trigger piece drives the valve plate and switches between opening and closing two states, realizes automated operation, need not artificial intervention.

Preferably, the power unit comprises an impeller, a gear set and a connecting piece which are sequentially connected, one end of the connecting piece is further hinged to one end of the trigger piece, and the power driving the impeller to rotate starts the trigger piece to move and open relative to the smoke exhaust port through the gear set and the connecting piece.

In this scheme, the rotatory power of impeller passes through gear train, connecting piece and turns into drive power drive trigger piece, realizes the translation of trigger piece, and then drive the valve plate. During the conversion process, the gear set has an amplifying effect, converting less wind into more driving force. The power for driving the impeller comes from an exhaust fan in the fume collecting hood or the flow of flue gas generated after the combustion of fuel gas.

Preferably, the power unit further comprises an elastic element, and the elastic element drives the trigger piece to be closed in a translation mode relative to the smoke exhaust.

In this scheme, when impeller stall, the drive power of trigger spare is zero, needs to close the valve plate this moment, prevents to discharge fume the interior down draught of mouth. The power for closing the valve plate comes from the elastic element, the valve plate is closed through the restoring force of the elastic element, and manual intervention is not needed in opening and closing the smoke exhaust port.

The utility model provides a water heater, its includes the collection petticoat pipe, water heater still includes foretell opening device, opening device install in the collection petticoat pipe.

In this scheme, when the water heater started, there was the flue gas that flows in the collection petticoat pipe, and the flue gas drives the impeller rotation, and the rotation of impeller realizes opening of valve plate through power unit conversion and transmission to triggering.

On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.

The positive progress effects of the invention are as follows: this opening device is based on the mode that the trigger piece opened through the translation for the valve plate realizes the upset to open because of removing spacing after the trigger piece opens the inside and outside passageway of intercommunication of exhaust port, and avoids the exhaust port under by the closed condition completely, leads to directly opening the valve plate through the upset mode because of the windage problem and is difficult to implement, opens difficult scheduling problem. This opening device opens and opens the dual mode through utilizing the translation simultaneously to open and overturn to combine the respective advantage of dual mode, effectively solved all kinds of valve plates that are used for sealing the exhaust port among the prior art and opened the problem of difficulty.

Drawings

Fig. 1 is a schematic perspective view of an opening device according to a preferred embodiment of the invention.

Fig. 2 is a schematic structural view of the opening device according to a preferred embodiment of the present invention, in which the valve plate is in an open state.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic structural view of a valve plate of the opening device in a closed state according to a preferred embodiment of the present invention.

Fig. 5 is an enlarged view of a portion B in fig. 4.

Fig. 6 is a schematic diagram illustrating a state in which the driving portion drives the driven portion to turn over according to a preferred embodiment of the invention.

Fig. 7 is an exploded view of a gear set according to a preferred embodiment of the present invention.

Fig. 8 is a schematic structural view of a protective cover according to a preferred embodiment of the invention.

Fig. 9 is a schematic structural diagram of a trigger according to a preferred embodiment of the invention.

Description of reference numerals:

a smoke collecting hood 10, a smoke exhaust port 10a

Valve plate 1

Driven part 11, mounting hole 111, recess 112

Trigger part 2

Active part 21

Power unit 3

Gear set 31

Sun gear 311

Planetary gear 312

Planetary carrier 313

Hinge 3131

Ring gear 314

Connecting piece 32

Elastic element 33

Impeller 34

Protective cover 4

Guide chute 41

Abutment 42

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 9, the present embodiment discloses an opening device, which is used for opening and closing a smoke exhaust port 10a of a smoke collecting hood 10, the opening device includes a trigger 2 and a valve plate 1, the trigger 2 and the valve plate 1 jointly close the smoke exhaust port 10a, the valve plate 1 can be turned over and opened relative to the smoke exhaust port 10a, and the valve plate 1 is limited by the trigger 2 at a position for closing the smoke exhaust port 10 a; when the trigger piece 2 is opened in a translation mode relative to the smoke exhaust port 10a, the trigger piece 2 can release the limit of the valve plate 1, so that the valve plate 1 is turned downwards under the action of gravity and opened relative to the smoke exhaust port 10 a.

In this embodiment, this opening device is based on the mode that trigger 2 opened through the translation for valve plate 1 is after trigger 2 communicates exhaust fume collecting hood 10 with the external world, removes spacing and can realize the upset and open it because of trigger 2, and avoids exhaust port 10a under totally by the encapsulated situation, leads to directly opening the valve plate through the upset mode because of the windage problem and is difficult to implement, opens difficult scheduling problem.

This opening device opens and opens the dual mode through utilizing the translation simultaneously and overturn to combine the respective advantage of dual mode, effectively solved all kinds of valve plates that are used for sealing exhaust port 10a among the prior art and opened the problem of difficulty.

As shown in fig. 2 to 6, the valve plate 1 is hinged to the inner side of the smoke collecting hood 10 through its mounting hole 111. Specifically, a rotating shaft (not shown in the figure) connected with the smoke collecting cover 10 is arranged on the inner side of the smoke collecting cover 10, and the valve plate 1 is connected with the rotating shaft through the mounting hole 111, so that the aim of overturning relative to the smoke collecting cover 10 is fulfilled. After the trigger part 2 relieves the limit to the valve plate 1, the valve plate 1 is turned downwards by the gravity of the valve plate 1 without being driven by extra power, and the opening sensitivity can be adjusted according to the weight of the valve plate 1. The valve plate 1 is hinged to one end of the smoke collecting cover 10 and is provided with a driven part 11, and in the embodiment, the mounting hole 111 is arranged on the driven part 11. The driven portion 11 is also provided with a circular arc-shaped groove 112.

When the valve plate 1 is in a closed state, the groove 112 is located right above the hinge shaft, so that the valve plate 1 can be conveniently turned over, and the driving force is reduced. Be provided with the initiative portion 21 that corresponds with driven part 11 on trigger piece 2, initiative portion 21 is the hemisphere arch, and the hemisphere arch matches with convex recess 112 to through the removal of the relative convex recess 112 of hemisphere arch, realize spacing to valve plate 1, and drive the purpose that valve plate 1 upwards overturned and closed, both combine, separate more smoothly.

Specifically, when the trigger 2 moves in the direction of translational closing relative to the smoke outlet 10a, as shown in fig. 6, the hemispherical protrusion of the driving portion 21 acts on the circular arc-shaped groove 112 of the driven portion 11 and drives the valve plate 1 to turn and close in the direction of the arrow.

In this embodiment, the valve plate 1 is provided with driven portions 11 at both ends in the width direction, respectively, and the trigger 2 is provided with driving portions 21 corresponding to the driven portions 11 one to one. The two driven parts 11 are matched with the two driving parts 21, so that the stress of the valve plate 1 is balanced, and compared with the situation that one driven part 11 is matched with the driving part 21 for overturning, the generated driving force is larger and the reliability is higher.

A sliding rail is arranged in the fume collecting hood 10, and the trigger part 2 is limited on the sliding rail and can horizontally slide on the sliding rail.

As shown in fig. 1 and 7, the opening device further comprises a power unit 3, the power unit 3 driving the trigger 2 to switch between translational opening and translational closing. The power unit 3 comprises an impeller 34, a gear set 31 and a connecting piece 32 which are sequentially connected, meanwhile, the other end of the connecting piece 32 is also hinged to one end of the trigger piece 2, and the power driving the impeller 34 to rotate starts the trigger piece 2 to move horizontally relative to the smoke exhaust port 10a through the gear set 31 and the connecting piece 32. The gear set 31 includes a sun gear 311, three planet gears 312, a planet carrier 313 and a ring gear 314, the impeller 34 is coaxially connected to the sun gear 311, the sun gear 311 and the planet gears 312 are arranged in the ring gear 314, the three planet gears 312 are mounted on the planet carrier 313, the planet gears 312 are externally meshed with the sun gear 311 and internally meshed with the ring gear 314, one end of the connecting member 32 is hinged to a hinge portion 3131 of the planet carrier 313, and the other end of the connecting member 32 is hinged to the trigger 2.

As shown in fig. 2 and 4, the power unit 3 further includes an elastic element 33, the elastic element 33 of the present embodiment is a spring, the spring is sleeved on a guide rod of the trigger 2, the guide rod is integrally formed with the trigger 2, one end of the spring acts on the smoke collecting hood 10, the other end of the spring acts on the trigger 2, and the spring provides a restoring force for restoring the trigger 2 from the open position to the closed position. When the impeller 34 stops rotating, the driving force of the trigger 2 is zero, and at this time, the trigger 2 moves horizontally in a direction close to the smoke discharge port 10a by the restoring force of the spring (see the arrow in fig. 2). Thereafter, as shown in fig. 6, the driving portion 21 of the trigger 2 abuts against the driven portion 11 of the valve plate 1, and the valve plate 1 is turned upward to close the smoke discharge port 10a while keeping the valve plate 1 in the closed state. When the smoke exhaust port 10a is opened, the impeller 34 rotates to drive the trigger piece 2 to horizontally move along the direction far away from the valve plate 1, the driving part 21 on the trigger piece 2 is separated from the driven part 11 on the valve plate 1, and the valve plate 1 turns downwards around the hinged end under the self gravity to open the smoke exhaust port 10 a.

In the present embodiment, the power generated by the rotation of the impeller 34 is converted into a driving force through the gear set 31 and the connecting member 32 to drive the valve plate 1 to open. During the conversion, the gear set 31 has an amplifying effect (through a large gear ratio) to convert the wind force driving the impeller 34 into a larger driving force. When the impeller 34 stops rotating, the driving force of the trigger 2 is zero, and at this time, the valve plate 1 needs to be closed to prevent the exhaust port 10a from blowing down. The power for closing the valve plate 1 comes from the elastic element 33, the valve plate 1 is closed by the restoring force of the elastic element 33, and the opening and closing of the smoke outlet 10a are automatically controlled without manual intervention.

As shown in fig. 4 and 8, the power unit further includes a protective cover 4, the protective cover 4 is fixed to the smoke collecting cover 10 and covers the gear set 31, and a guide chute 41 is provided on the protective cover 4, and the guide chute 41 is an arc structure with an axis of the planet carrier 313 as a center. The planet carrier 313 is provided with a hinge 3131 protruding outward, and the hinge 3131 is hinged to the connecting member 32 through the sliding guide groove 41. When the water heater is started, wind can be generated in the smoke collecting hood 10, the impeller 34 is driven by the wind to drive the hinge part 3131, the connecting piece 32 moves along the horizontal direction, and then the triggering piece 2 is driven to move along the direction far away from the valve plate 1, so that the limiting of the valve plate 1 is relieved by the triggering piece 2, and the valve plate 1 is turned over and opened under the self gravity. The wind in the fume collecting hood 10 comes from a fan or a flow of flue gas generated when the gas is burned.

As shown in fig. 2, the middle of the top surface of the protective cover 4 is provided with an abutting portion 42, and when the connecting member 32 slides to the far end in the direction away from the valve plate 1, the side surface of the connecting member 32 abuts against the abutting portion 42, so as to prevent the hinge portion 3131 from sliding over the apex of the circular arc structure and being jammed.

As shown in fig. 4 and fig. 9, in the present embodiment, the triggering member 2 is actually a secondary valve plate, the secondary valve plate and the valve plate 1 together seal the smoke outlet 10a, and the secondary valve plate actually seals approximately half of the area of the smoke outlet 10 a. Through the structure, the area of the valve plate 1 can be reduced, the driving force and the sliding stroke of the valve plate 1 are correspondingly reduced, and the opening and closing processes of the valve plate 1 are simpler and more flexible. Meanwhile, the auxiliary valve plate is firstly opened to communicate the inside and the outside of the smoke outlet 10a, so that the problem that the valve plate 1 is difficult to open due to the fact that air pressure difference is generated on the two sides of the valve plate 1 due to wind resistance is solved.

The embodiment also provides a water heater, which comprises a smoke collecting hood 10 and the opening device, wherein the opening device is arranged in the smoke collecting hood 10. When the water heater is started, flowing smoke exists in the smoke collecting hood 10, the smoke drives the impeller 34 to rotate, the rotation of the impeller 34 is transmitted to the trigger part 2 through the power unit 3, and the valve plate 1 is opened. In other embodiments, the air generated by the opening of the exhaust fan of the water heater can also rotate the impeller 34, thereby driving the valve plate 1 to open.

While specific embodiments of the invention have been described above, it will be appreciated 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 scope of the invention, and these changes and modifications are within the scope of the invention.

Claims

1. An opening device is used for opening and closing a smoke exhaust port of a smoke collecting hood and is characterized by comprising a trigger piece and a valve plate, wherein the trigger piece and the valve plate jointly close the smoke exhaust port, the valve plate can be turned over and opened relative to the smoke exhaust port, and the valve plate is limited by the trigger piece at a position for closing the smoke exhaust port;

2. The opening device according to claim 1, wherein one end of the valve plate is hinged to the inside of the fume collecting hood, and the other end of the valve plate is turned downwards to open by its own weight after the trigger releases the limit of the valve plate.

3. The opening device as claimed in claim 2, wherein the valve plate is provided with a driven portion at one end of the valve plate, the trigger member is provided with a driving portion corresponding to the driven portion, and when the trigger member is closed in a translational manner relative to the smoke discharge port, the driving portion acts on the driven portion and drives the valve plate to turn over and close.

4. The opening device according to claim 3, wherein the driven portions are provided at both ends of the valve plate in the width direction, respectively, and the trigger is provided with the driving portions in one-to-one correspondence with the driven portions.

5. The opening device of claim 1, wherein when the trigger closes the smoke exhaust, one end of the trigger abuts against the valve plate and limits the valve plate to a position closing the smoke exhaust;

6. The opening device of claim 5, wherein when said trigger member is moved in translation relative to said smoke exhaust opening to close, an end of said trigger member adjacent to said valve plate causes said valve plate to flip closed.

7. The opening device of claim 1 wherein the trigger is a secondary valve plate.

8. The opening device according to any one of claims 1 to 7, further comprising a power unit that drives the trigger member to switch between translational opening and translational closing.

9. The opening device of claim 8, wherein the power unit comprises an impeller, a gear set and a connecting piece which are connected in sequence, one end of the connecting piece is further hinged to one end of the trigger piece, and the power for driving the impeller to rotate drives the trigger piece to move in a translation mode relative to the smoke exhaust opening through the gear set and the connecting piece.

10. The opening device of claim 8, wherein the power unit further comprises a resilient element that drives the trigger member to translate closed against the exhaust port.

11. A water heater including a smoke collection hood, wherein the water heater further includes an opening device as claimed in any one of claims 1 to 10 mounted within the smoke collection hood.