Gas water heater choke

Abstract

The utility model relates to the technical field of choke devices, in particular to a choke device of a gas water heater, which comprises a pipe body, an air outlet end of the pipe body is in threaded connection with a steel support, a plurality of choke sheets are arranged on the inner wall of the steel support, an air outlet channel is arranged at a connecting end of the pipe body, and a connecting support is arranged at one end of the inner wall of the pipe body close to the air outlet channel. A supporting frame is arranged at the front end of the connecting support, and an abutting film is arranged on the inner wall of the supporting frame. According to the improved air choke, convection is formed between the air choke pieces and cold air, the air choke pieces can prevent too much cold airflow from entering the water heater, heat loss in the water tank is reduced, frost cracking of the water tank is effectively prevented, the abutting film in the blocking mechanism can respond rapidly and effectively block the air outlet channel, cold air and strong wind are prevented from invading the water heater, and the service life of the water heater is prolonged. Meanwhile, the connecting support can disperse wind power and guide airflow to enter the inner wall of the pipe body through the ventilation holes and to be exhausted from the exhaust holes.

Description

Technical Field

[0001] The utility model relates to the technical field of wind blocking devices, in particular to a wind blocking device for a gas water heater. Background Art

[0002] A gas water heater heats water by burning a fuel gas such as natural gas, liquefied petroleum gas, or city gas. It's a common household hot water supply device, widely used in homes, hotels, public bathrooms, and other places. The basic operating principle of a gas water heater is that an ignition device ignites a mixture of gas and air, generating combustion. The heat generated by combustion is transferred to the flowing water through a heat exchanger, heating it. Users can control the water temperature by adjusting the gas and water flow rates. Modern gas water heaters are typically equipped with various safety features, such as overheating protection, oxygen deficiency protection, and flameout protection, to ensure safe use.

[0003] A draft damper is a device used in gas appliances (such as gas water heaters, gas stoves, and gas boilers). Its primary purpose is to prevent flameout or flashback caused by excessive or inappropriate wind. This is particularly important in gas water heaters, as the flame is generated during operation, and changes in wind or airflow can disrupt the flame's normal combustion. The draft damper's design controls the amount of air entering the combustion chamber and blocks strong external wind from blowing directly onto the flame, thereby maintaining flame stability and safety.

[0004] In the process of realizing the present invention, the inventors found that the existing technology has the following problems: 1. The existing wind blocker can only block the wind that blows directly in, and cannot change the flow direction and flow rate of the fluid inside the smoke pipe, and cannot effectively block the wind to prevent the water heater tank from freezing and cracking; 2. The wind blocking effect of the existing wind blocker is not tight enough, and its wind blocking structure still has shortcomings in terms of rapid response and effective blocking, and the flexibility in self-regulation is not high. Utility Model Content

[0005] The purpose of the present invention is to provide a gas water heater wind blocker to solve the problem that the existing wind blocker proposed in the above background technology can only block the wind that blows directly in, cannot change the flow direction and flow rate of the fluid inside the smoke pipe, cannot effectively block the wind and thus prevent the water heater tank from freezing and cracking, and the wind blocking effect of the existing wind blocker is not tight enough, and its wind blocking structure still has shortcomings in terms of rapid response and effective blocking, and at the same time, it has low flexibility in terms of self-regulation. In order to achieve the above purpose, the present invention provides the following technical solutions: a gas water heater wind blocker, comprising a pipe body, the air outlet end of the pipe body is threadedly connected to a steel bracket, the inner wall of the steel bracket is provided with a plurality of wind blocking plates, the connecting end of the pipe body is provided with an air outlet channel, the inner wall of the pipe body is provided with a connecting bracket at one end close to the air outlet channel, the front end of the connecting bracket is provided with a support frame, and the inner wall of the support frame is provided with a resist film.

[0006] Further preferably, the air outlet end of the tube body is provided with a plurality of grooves, the front end of the steel bracket is provided with a plurality of mounting screws, and the grooves and the mounting screws are threadedly connected by fastening screws.

[0007] Further preferably, the wind-blocking sheet is arranged obliquely, opposite to the direction of air entry.

[0008] Further preferably, the air outlet channel is a T-shaped channel, and the aperture of the air outlet end is smaller than the diameter of the membrane.

[0009] Further preferably, the connecting bracket, the supporting frame and the abutment membrane together constitute a blocking mechanism.

[0010] Further preferably, the connecting bracket is an L-shaped bracket, with its front and rear ends being arranged obliquely and converging in front and diverging in the back, a vent hole is opened on the upper surface of the connecting bracket, and the tail end of the connecting bracket is connected to the inner wall interlayer of the tube body.

[0011] Further preferably, a plurality of exhaust holes are provided at the front end of the outer wall of the tube body.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In the present invention, after the external cold air or wind enters the interior of the pipe body from the air outlet end thereof, it will first come into contact with the wind baffle. The air flow passes through the wind baffle. Since the wind baffle is arranged obliquely and in the opposite direction to the air entry direction, air convection will be formed. During this period, the inclined wind baffle can guide the flow direction of the external air into the pipe body, which helps to control the air flow speed and direction, ensures the smooth entry of the air flow, effectively buffers the direct impact of the cold air flow on the inside of the pipe body, avoids machine failure caused by temperature fluctuations caused by the encounter between cold and hot air, helps to extend the service life of the water heater, and by forming convection with the cold air, the wind baffle can prevent excessive cold air flow from entering the inside of the water heater, reduce heat loss in the water tank, and effectively prevent the water tank from freezing and cracking.

[0014] In the present invention, when cold air or strong wind invades from the outside, the resistance film will move inwards due to the wind pressure, thereby fitting tightly to the air outlet end of the air outlet channel, effectively blocking the cold air and strong wind from entering the smoke exhaust duct and the inside of the water tank of the water heater. When the wind stops, the resistance film will return to its original shape due to its own elasticity and leave the air outlet end of the air outlet channel. During this period, the blocking mechanism can respond quickly and effectively block the air outlet channel, preventing the invasion of cold air and strong wind, helping to avoid the internal temperature of the water heater from being too low, thereby reducing the water heater caused by too low temperature. The risk of failure or damage. At the same time, the conical inclined setting of the L-shaped connecting bracket, which gathers at the front end and disperses at the rear end, can effectively guide strong winds and cold air to flow along the inclined direction of the connecting bracket, disperse the wind force, and reduce the force of direct impact on the inner wall of the pipe body. At the same time, through the air vents opened on the surface of the connecting bracket, strong winds and cold air will be guided into the inner wall interlayer of the pipe body, and the cold air and strong winds will be guided to the exhaust holes opened on the outer wall of the front end of the pipe body for discharge, so as to avoid excessive air from entering the water heater and the inside of the water tank, thereby avoiding freezing and cracking of the water tank, damage to the equipment, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the steel bracket structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the wind-blocking piece of the utility model;

[0018] Figure 4 This is a schematic diagram of the membrane-resisting structure of the utility model.

[0019] In the figure: 1. tube body; 101. groove; 102. exhaust hole; 2. steel bracket; 201. mounting screw; 3. wind baffle; 4. air outlet channel; 5. connecting bracket; 501. vent hole; 6. support frame; 7. membrane. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0021] See also Figures 1 to 4 The utility model provides a technical solution: a gas water heater wind blocker, comprising a pipe body 1, the air outlet end of the pipe body 1 is threadedly connected to a steel bracket 2, the inner wall of the steel bracket 2 is provided with a plurality of wind blocking plates 3, the connecting end of the pipe body 1 is provided with an air outlet channel 4, and the end of the inner wall of the pipe body 1 close to the air outlet channel 4 is provided with a connecting bracket 5, the front end of the connecting bracket 5 is provided with a supporting frame 6, and the inner wall of the supporting frame 6 is provided with a resisting membrane 7.

[0022] In this embodiment, Figure 1 and Figure 2 As shown, the air outlet end of the pipe body 1 is provided with a plurality of grooves 101, and the front end of the steel bracket 2 is provided with a plurality of mounting screws 201, and the grooves 101 and the mounting screws 201 are threadedly connected by fastening screws; it should be noted that before using the wind blocking device in the present invention, the operator can first engage the mounting screws 201 provided at the front end of the steel bracket 2 with the grooves 101 provided at the air outlet end of the pipe body 1, and use the fastening screws to pass through the corresponding screw holes of the two and tighten them, so that the steel bracket 2 can be screwed to the pipe body 1, and the wind blocking piece 3 provided on the inner wall of the steel bracket 2 will be on the pipe body. 1 plays a wind-blocking role. During this period, the design of the groove 101 and the mounting screw block 201 allows the steel bracket 2 to be firmly connected to the pipe body 1 by fastening the screws, ensuring the stable installation of the wind-blocking piece 3 in the pipe body 1, and can prevent the steel bracket 2 from loosening or shifting during use, thereby increasing the strength of the overall structure of the steel bracket 2, so that it can remain stable in extreme wind environments, and extend the service life of the equipment. At the same time, through threaded installation, the entire steel bracket 2 can be easily installed on the pipe body 1, and can also be easily disassembled for cleaning or replacement, thereby improving the convenience of maintenance.

[0023] In this embodiment, Figure 1 and Figure 3As shown, the wind baffle 3 is set obliquely, opposite to the direction of air entering. It should be noted that after the steel bracket 2 is threadedly connected to the pipe body 1, the wind baffle 3 provided on the inner wall of the steel bracket 2 will also be inside the pipe body 1. When the external cold air or wind enters the interior of the pipe body 1 from the air outlet end, it will first contact the wind baffle 3. Its airflow passes through the wind baffle 3. Because the wind baffle 3 is set obliquely and opposite to the direction of air entering, air convection will be formed. During this period, the inclined wind baffle 3 can guide the flow direction of external air into the pipe body 1, which helps to control the airflow speed and direction, ensure that the airflow enters smoothly, effectively buffer the direct impact of the cold airflow on the inside of the pipe body 1, avoid machine failure caused by temperature fluctuations caused by the encounter of cold and hot air, and help to extend the service life of the water heater. By forming convection with the cold air, the wind baffle 3 can prevent excessive cold airflow from entering the water heater, reduce heat loss in the water tank, and effectively prevent the water tank from freezing and cracking.

[0024] In this embodiment, Figure 1 and Figure 4 As shown, the air outlet channel 4 is a T-shaped channel, and the aperture of its air outlet end is smaller than the diameter of the membrane 7; it should be noted that when encountering strong winds, a large amount of cold air will be poured into the interior of the tube body 1, and after being intercepted by the wind-blocking plate 3, a lot of cold air will still flow into the deep of the tube body 1. At the same time, its cold air flow will blow the membrane 7 inward, causing it to extend and directly adhere to the air outlet end of the air outlet channel 4 at its rear end. During this period, because the air outlet channel 4 is a T-shaped channel and the aperture of its air outlet end is smaller than the diameter of the membrane 7, the membrane 7 will be completely blocked in the air outlet channel 4 without leaving a gap, thereby effectively blocking cold air and strong winds from entering the exhaust pipe and water tank of the water heater. When the wind stops, the membrane 7 will return to its original shape due to its own elasticity, thereby releasing the blockage of the air outlet channel 4, ensuring internal air circulation and smooth smoke exhaust.

[0025] In this embodiment, Figure 4As shown, the connecting bracket 5, the supporting frame 6 and the resisting membrane 7 together constitute a blocking mechanism; it should be noted that, in normal use, the connecting bracket 5 connects the supporting frame 6 and the resisting membrane 7, so that a gap is left between the air outlet channel 4 and the resisting membrane 7, thereby ensuring the normal discharge of smoke, and when cold air or strong wind invades from the outside, the resisting membrane 7 will move inward due to the wind pressure, thereby fitting tightly to the air outlet end of the air outlet channel 4, effectively blocking cold air and strong wind from entering the exhaust pipe and water tank of the water heater, and after the wind ends, the resisting membrane 7 will return to its original shape due to its own elasticity and leave the air outlet end of the air outlet channel 4. During this period, when external cold air or strong wind tries to enter the water heater, its blocking mechanism can respond quickly and effectively block the air outlet channel 4 to prevent the invasion of cold air and strong wind, which helps to avoid the internal temperature of the water heater from being too low, thereby reducing the risk of water heater failure or damage caused by too low temperature. At the same time, the design of the membrane 7 and its own elastic properties can allow it to automatically adjust its position under the action of wind pressure. Its adaptive characteristics can adapt to different wind conditions. The wind blocking function is achieved without the need for additional mechanical or electronic control systems, avoiding complex control systems, reducing costs and improving reliability.

[0026] In this embodiment, Figure 1 and Figure 4 As shown, the connecting bracket 5 is an L-shaped bracket, and its front and rear ends are arranged obliquely, converging forward and diverging backward. A vent hole 501 is provided on the upper surface of the connecting bracket 5, and the tail end of the connecting bracket 5 is connected to the inner wall interlayer of the tube body 1; it should be noted that when strong wind and cold air invade the interior of the tube body 1 and come into contact with the membrane 7, the cold air flow will come into contact with the connecting bracket 5. At this time, the oblique frame of the connecting bracket 5, which converges forward and diverges backward, will guide the air flow to flow along the prosthesis, and enter the interior of the prosthesis when flowing through the vent hole 501 provided on its surface, and then enter the inner wall interlayer of the tube body 1 connected thereto along the inner wall of the connecting bracket 5, and exhaust from the exhaust. The air is discharged outwards from the hole 102. During this period, the conical inclined setting of the L-shaped connecting bracket 5 with the front end gathering and the rear end dispersing can effectively guide the strong wind and cold air to flow along the inclined direction of the connecting bracket 5, disperse the wind force, and reduce the force of direct impact on the inner wall of the pipe body 1. At the same time, through the vent holes 501 opened on the surface of the connecting bracket 5, the strong wind and cold air will be guided into the inner wall interlayer of the pipe body 1, and the cold air and strong wind will be guided to the exhaust hole 102 opened on the outer wall of the front end of the pipe body 1 for discharge, which helps to improve the exhaust efficiency and avoid excessive air from entering the water heater and the inside of the water tank, thereby avoiding freezing and cracking of the water tank, damage to the equipment, etc.

[0027] In this embodiment, Figure 1 and Figure 2As shown, a plurality of exhaust holes 102 are provided at the front end of the outer wall of the tube body 1; it should be noted that when the cold air flow contacts the connecting bracket 5, the air flow will flow along the inclined direction of the connecting bracket 5 to the vent holes 501 provided on its surface, and enter therefrom and then flow into the inner wall interlayer of the tube body 1 connected thereto. At the same time, the air flow will be pushed by the wind pressure to flow to the exhaust holes 102 provided on the outer wall of the front end of the tube body 1 and discharged therefrom. During this period, the presence of the exhaust holes 102 can provide a clear release channel for cold air and strong winds, so that they can be quickly discharged from the inside of the tube body 1, avoiding these air flows from being retained inside the tube body 1 and preventing them from invading the water heater and the water tank. At the same time, the exhaust effect of the exhaust holes 102 can effectively reduce the pressure exerted by the strong wind on the inside of the tube body 1, preventing the internal parts of the tube body 1 from being damaged due to excessive wind pressure. Moreover, by setting the exhaust holes 102, the air flow content inside the tube body 1 can be effectively controlled, thereby reducing the possibility of intrusion of external cold air and improving the safety of the water heater.

[0028] The use method and advantages of this utility model: When the gas water heater wind blocker is used, the working process is as follows:

[0029] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, first, the operator can engage the mounting screw block 201 provided at the front end of the steel bracket 2 with the groove 101 provided at the air outlet end of the pipe body 1, and use the fastening screw to pass through the corresponding screw holes of the two and tighten it, so that the steel bracket 2 can be screwed to the pipe body 1, and the wind blocking piece 3 provided on the inner wall of the steel bracket 2 will also be inside the pipe body 1. When the external cold air or wind enters the interior from the air outlet end of the pipe body 1, it will first contact the wind blocking piece 3. Its airflow passes through the wind blocking piece 3. Because the wind blocking piece 3 is obliquely arranged and opposite to the air inlet direction, air convection will be formed. During this period, the inclined wind blocking piece 3 can guide the flow direction of the external air into the pipe body 1, which helps to control the airflow speed and direction, ensure the smooth entry of the airflow, and effectively buffer the direct impact of the cold airflow on the inside of the pipe body 1. To prevent the water tank from freezing and cracking due to excessive cold air entering, a lot of cold air will still enter the deep part of the pipe body 1 after being intercepted by the wind blocking piece 3. At the same time, the cold air will blow the membrane 7 inward, and the membrane 7 will move inward due to the wind pressure, so as to fit tightly to the outlet end of the air outlet channel 4, effectively blocking the cold air and strong wind from entering the exhaust pipe of the water heater and the inside of the water tank. After the wind ends, the membrane 7 will return to its original shape due to its own elasticity. During this period, the cold air will come into contact with the connecting bracket 5. At this time, the oblique frame of the connecting bracket 5, which gathers in front and disperses in the back, will guide the airflow to flow along the prosthesis, and enter into the interior when flowing through the vent 501 opened on its surface, and then enter the inner wall interlayer of the pipe body 1 connected to it along the inner wall of the connecting bracket 5, and be discharged outward from the exhaust hole 102.

[0030] The above shows and describes the basic principles, main features, and advantages of the present invention. Persons skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas water heater air blocker, comprising a pipe body (1), characterized in that: The air outlet end of the tube body (1) is threadedly connected to a steel bracket (2), the inner wall of the steel bracket (2) is provided with a plurality of wind blocking plates (3), the connecting end of the tube body (1) is provided with an air outlet channel (4), the inner wall of the tube body (1) is provided with a connecting bracket (5) at one end close to the air outlet channel (4), the front end of the connecting bracket (5) is provided with a supporting frame (6), and the inner wall of the supporting frame (6) is provided with a resisting membrane (7).

2. The gas water heater air blocker according to claim 1, characterized in that: The air outlet end of the pipe body (1) is provided with a plurality of grooves (101), and the front end of the steel bracket (2) is provided with a plurality of mounting screws (201). The grooves (101) and the mounting screws (201) are threadedly connected by fastening screws.

3. The gas water heater wind blocker according to claim 2, characterized in that: The wind-blocking sheet (3) is arranged obliquely, opposite to the direction of air entry.

4. The gas water heater air blocker according to claim 1, characterized in that: The air outlet channel (4) is a T-shaped channel, and the aperture of the air outlet end is smaller than the diameter of the membrane (7).

5. The gas water heater air blocker according to claim 1, characterized in that: The connecting bracket (5), the supporting frame (6) and the abutting membrane (7) together constitute a blocking mechanism.

6. The gas water heater wind blocker according to claim 1, characterized in that: The connecting bracket (5) is an L-shaped bracket, with its front and rear ends arranged obliquely, converging in front and diverging in the back. A vent hole (501) is provided on the upper surface of the connecting bracket (5), and the rear end of the connecting bracket (5) is connected to the inner wall interlayer of the tube body (1).

7. The air damper for a gas water heater according to claim 1, characterized in that: A plurality of exhaust holes (102) are provided at the front end of the outer wall of the tube body (1).

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