Smoke pipe components and household appliances

Abstract

The present invention provides a smoke duct assembly and household appliance. The smoke duct assembly comprises: a tube body, enclosing a tube cavity; a retaining ring, disposed at the end of the tube cavity, with a plurality of first through holes circumferentially arranged on the retaining ring. The plurality of first through holes are radially distributed about the central axis of the tube body, and the first through holes are connected to the tube cavity. By disposing the retaining ring at the end of the tube body, the smoke duct assembly and household appliance ensure that smoke entering the tube body and discharged axially can be directly discharged from the tube body through the first through holes in the axial direction, thereby ensuring smooth smoke exhaust and effective smoke exhaust.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a cigarette pipe assembly and a household appliance. Background Art

[0002] The gas water heater can provide a corresponding air volume by controlling the speed of the fan to maintain the gas water heater to perform burner operation under good conditions.

[0003] Exhaust pipes used in gas water heaters typically feature multiple, evenly spaced exhaust holes radially distributed along the outlet of a circular pipe to discharge harmful combustion fumes. However, since the exhaust pipe's exhaust direction is axial, and the radial arrangement of the exhaust holes creates significant exhaust resistance, resulting in uneven exhaust and poor exhaust performance. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that the radial arrangement of the smoke exhaust holes leads to large smoke exhaust resistance, thereby providing a smoke pipe assembly with non-radial arrangement of the smoke exhaust holes.

[0005] In order to solve the above technical problems, the present invention provides a cigarette tube assembly, comprising: a tube body, which encloses a tube cavity; a retaining ring, which is arranged at the end of the tube cavity, and a plurality of first through holes are arranged in a circumferential direction on the retaining ring, and the plurality of first through holes are radially distributed with the axis of the tube body as the center, and the first through holes are connected to the inner cavity.

[0006] Optionally, the cigarette tube assembly further comprises: a bulge provided at one end of the tube body, the bulge having an inner cavity connected to the tube cavity, the inner diameter of the bulge being larger than the inner diameter of the tube body, and the retaining ring being provided on the bulge.

[0007] Optionally, the convex hull includes: a convex shell, circumferentially arranged on the tube body, and the convex shell encloses the inner cavity; wherein the retaining ring is arranged at the end of the convex shell.

[0008] Optionally, the convex shell is conical, and has a first end and a second end. The inner diameter of the first end is smaller than the inner diameter of the second end, and the retaining ring is provided at the second end.

[0009] Optionally, the convex shell is a conical shell; and / or the convex shell and the tube body are integrally formed.

[0010] Optionally, the convex bulge is provided with a plurality of second through holes along the radial direction of the tube body at one end close to the first through hole, and the plurality of second through holes are arranged in sequence around the inner cavity, and the second through holes are communicated with the inner cavity.

[0011] Optionally, the retaining ring includes a guide portion, the guide portion is convexly arranged facing the smoke exhaust direction, and the first through hole is provided in the guide portion.

[0012] Optionally, the retaining ring is annular, and the smoke tube assembly further includes: an end cover connected to the retaining ring, and a plurality of the first through holes are provided on the outside of the end cover.

[0013] Optionally, the smoke tube assembly further includes: a bend tube connected to the other end of the tube body.

[0014] Therefore, another technical problem to be solved by the present invention is to overcome the defect that the radial arrangement of the smoke exhaust holes leads to large smoke exhaust resistance, thereby providing a household appliance with non-radial arrangement of the smoke exhaust holes.

[0015] In order to solve the above technical problems, the present invention provides a household appliance, comprising: a smoke pipe assembly as described in any one of the items, wherein the smoke pipe assembly is suitable for extending outdoors.

[0016] The technical solution of the present invention has the following advantages:

[0017] 1. The smoke pipe assembly provided by the present invention provides a retaining ring at the end of the pipe body, so that the smoke entering the pipe body and discharged axially can be directly discharged from the pipe body through the first through hole in the axial direction, and the smoke exhaust is smooth, ensuring the smoke exhaust effect.

[0018] 2. The smoke tube assembly provided by the present invention has an inner diameter of the convex bulge that is larger than the inner diameter of the tube body, so that the multiple first through holes provided on the retaining ring can be located outside the tube cavity in the axial extension direction. The inner wall of the convex bulge can guide the smoke, which is more conducive to the smoke being discharged from the smoke tube assembly.

[0019] 3. The smoke tube assembly provided by the present invention forms a convex hull through a convex shell, and has a simple structure.

[0020] 4. The smoke pipe assembly provided by the present invention has a retaining ring arranged at the second end with a larger inner diameter. The retaining ring also has a guiding effect on the smoke, which is more conducive to the discharge of the smoke.

[0021] 5. The smoke tube assembly provided by the present invention simplifies the structure by providing a conical convex shell.

[0022] 6. The smoke pipe assembly provided by the present invention has the function of gathering smoke by the inner concave side of the inner cavity of the retaining ring toward the convex bump, which is more conducive to the smoke being discharged from the smoke pipe assembly through the first through hole.

[0023] 7. The smoke tube assembly provided by the present invention blocks the bulge by the end cover to prevent foreign matter and a large amount of rainwater from entering the smoke tube assembly.

[0024] 8. The smoke pipe assembly provided by the present invention is arranged at the other end of the pipe body through a bend pipe, which is convenient for installation.

[0025] 9. The smoke tube assembly provided by the present invention is arranged at the end with the largest inner diameter through the second through hole. Since the inner wall of the convex shell gradually increases axially toward the end close to the end cover, the position of the end close to the end cover in the convex shell is lower than the inner bottom of the tube cavity. Rainwater can gather at the intersection position and will not flow back, thereby achieving good rain protection effect.

[0026] 10. The household appliance provided by the present invention includes the above-mentioned smoke pipe assembly, and thus has any one of the advantages of the above-mentioned smoke pipe assembly, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 A schematic diagram of the three-dimensional structure of a smoke exhaust pipe provided in one embodiment of the prior art;

[0029] Figure 2 A schematic diagram of the three-dimensional structure of a straight pipe with a plugging cover of a smoke exhaust pipe provided in an embodiment of the prior art;

[0030] Figure 3 A schematic diagram of the three-dimensional structure of a straight pipe with a plugging cover of a smoke exhaust pipe provided in another embodiment of the prior art;

[0031] Figure 4 for Figure 3 A in the figure shows the enlarged structural diagram;

[0032] Figure 5 A schematic diagram of the three-dimensional structure of a smoke tube assembly provided in one embodiment of the present invention;

[0033] Figure 6 A schematic diagram of a partial structure of a smoke tube assembly provided in one embodiment of the present invention;

[0034] Figure 7 for Figure 6 Schematic diagram of the enlarged structure at P in FIG;

[0035] Figure 8 A schematic diagram of the three-dimensional structure of a smoke tube assembly provided in another embodiment of the present invention;

[0036] Figure 9 A schematic diagram of a partial front view of a smoke tube assembly provided in one embodiment of the present invention;

[0037] Figure 10 A schematic side view of a partial structure of a smoke tube assembly provided in one embodiment of the present invention;

[0038] Figure 11 A schematic diagram of the main structure of a smoke tube assembly provided in another embodiment of the present invention;

[0039] Figure 12 for Figure 1 The schematic diagram of the structure at Q in the figure is enlarged;

[0040] Figure 13 A schematic diagram of the three-dimensional structure of a household appliance provided in one embodiment of the present invention.

[0041] Description of reference numerals:

[0042] 1-Gas water heater; 2-Exhaust pipe; 3-Fume pipe assembly;

[0043] 210-straight pipe; 220-blocking cover;

[0044] 211 - smoke exhaust hole; 212 - connecting belt; 213 - bottom of straight pipe;

[0045] 31-tube body; 32-convex hull; 33-end cover; 34-elbow;

[0046] 321 - first through hole; 322 - convex shell; 323 - second through hole; 324 - retaining ring;

[0047] 3241- export department;

[0048] L-the central axis of the tube body;

[0049] M, B, D, and E indicate the direction of falling rain, and K and J indicate the direction of smoke. DETAILED DESCRIPTION

[0050] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0051] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0052] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0053] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0054] Currently, if Figure 1 As shown, the gas water heater 1 uses a smoke exhaust pipe 2 to exhaust smoke. Figure 2 As shown, the exhaust pipe 2 is a circular pipe, including a straight pipe 210 and a plug cover 220. A plurality of evenly distributed exhaust holes 211 are radially opened on the wall of the circular straight pipe 210. The end of the straight pipe 210 is sealed with a plug cover 220 to prevent debris from entering the exhaust pipe 2 and causing blockage. Figure 3 As shown, the straight tube 210 of the smoke exhaust pipe 2 may also be a square tube, and a plurality of evenly distributed smoke exhaust holes 211 are radially opened on the tube wall of the square straight tube 210 .

[0055] During the use of the exhaust pipe 2, the following technical problems were found: 1. Figure 4 As shown, the exhaust direction of the smoke is K, and the exhaust direction of the smoke in the exhaust pipe 2 changes from axial to radial, resulting in large exhaust resistance and uneven exhaust. Figure 2 As shown, connecting strips 212 are located between adjacent smoke exhaust holes 211. When installing the smoke exhaust pipe 2, if the straight pipe 210 is installed horizontally and the bottom 213 of the straight pipe is located exactly on the connecting strip 212, then when it rains (D and B represent the falling directions of rainwater), rainwater will fall into the smoke exhaust holes 211 along the bottom connecting strip 212 and enter the interior of the gas water heater 1. Because rainwater contains sulfur dioxide and other acidic substances, it will corrode the smoke exhaust pipe 2 or the entire unit, shortening the life of the unit.

[0056] Example 1

[0057] like Figure 5 The figure shows a cigarette tube assembly, including: a tube body 31 and a retaining ring 324. The tube body 31 encloses a tube cavity, and the retaining ring 324 is arranged at the end of the tube cavity. A plurality of first through holes 321 are circumferentially arranged on the retaining ring 324. The plurality of first through holes 321 are radially distributed with the central axis L of the tube body as the center, and the first through holes 321 are connected to the tube cavity.

[0058] The aforementioned tube body 31 is a circular tube, or alternatively, a square tube. Taking the circular tube body 31 as an example, by disposing a retaining ring 324 at the end of the tube body 31, a plurality of first through holes 321 are radially distributed about the central axis L of the tube body. This arrangement allows the axes of the first through holes 321 to form an acute angle with the central axis L of the tube body, resulting in the radial distribution of the plurality of first through holes 321 relative to the central axis L of the tube body. This facilitates the direct exit of axially discharged smoke from the tube body 31 through the first through holes 321 in the axial direction, ensuring smooth exhaust and effective smoke removal.

[0059] Further, if Figure 6 As shown, the cigarette tube assembly further includes: a bulge 32 , which is provided at one end of the tube body 31 , and has an inner cavity connected to the tube cavity. The inner diameter of the bulge 32 is larger than the inner diameter of the tube body 31 , and a retaining ring 324 is provided on the bulge 32 .

[0060] The shell of the above-mentioned bulge 32 is arranged around the tube cavity, and the bulge 32 is arranged at the end of the tube body 31. The bulge 32 is arranged to protrude from the tube body 31 in the annular direction. Since the inner diameter of the bulge 32 is larger than the inner diameter of the tube body 31, the multiple first through holes 321 set on the retaining ring 324 can be located outside the tube cavity in the axial extension direction. The inner wall of the bulge 32 can guide the smoke, which is more conducive to the smoke exhaust of the smoke pipe assembly 3.

[0061] Further, if Figure 5 and Figure 6 As shown, the convex hull 32 includes a convex shell 322 , which is circumferentially arranged on the tube body 31 and encloses an inner cavity, wherein a retaining ring 324 is arranged at the end of the convex shell 322 .

[0062] The convex shell 322 is a shell structure, one end of which is connected to the tube body 31 . The convex shell 322 is circumferentially arranged on the tube body 31 . The retaining ring 324 can be annular, and a plurality of first through holes 321 are evenly distributed circumferentially on the retaining ring 324 .

[0063] Furthermore, if Figure 7As shown, the convex shell 322 is conical and has a first end and a second end. The inner diameter of the first end is smaller than the inner diameter of the second end, and a retaining ring 324 is provided at the second end.

[0064] In the direction of smoke discharge, the inner diameter of the convex shell 322 gradually increases, which is more conducive to the discharge of smoke. By arranging the retaining ring 324 at the second end with a larger inner diameter, the retaining ring 324 also has a guiding effect on the smoke, which is more conducive to the discharge of smoke.

[0065] Furthermore, if Figure 7 As shown, the convex shell 322 is a conical shell, which simplifies the structure of the convex hull 32. Similarly, the convex shell 322 and the tube body 31 are integrally formed, which has good sealing performance and simplifies the overall structure.

[0066] Furthermore, if Figure 7 and Figure 8 As shown, the retaining ring 324 includes a guide portion 3241 , which is convexly arranged facing the smoke exhaust direction, and the first through hole 321 is provided in the guide portion 3241 .

[0067] The above-mentioned outlet portion 4241 is integrally arranged with the main body of the retaining ring 324, so that the outer surface of the outlet portion 3241 convexes toward the direction of smoke exhaust, and the inner surface of the outlet portion 3241 is concave toward the direction of smoke exhaust, which plays a role in gathering smoke and is more conducive to the smoke being discharged from the smoke pipe assembly from the first through hole 321.

[0068] Further, if Figure 10 As shown, the retaining ring 324 is annular, and the smoke tube assembly further includes: an end cover 33 , the end cover 33 is connected to the retaining ring 324 , and a plurality of first through holes 321 are arranged around the outer circumference of the end cover 33 .

[0069] The end cap 33 can be connected to the inner wall of the retaining ring 324 by a threaded connection, making the end cap 33 detachable for easy maintenance. The end cap 33 is used to block the bulge 32 to prevent foreign matter and a large amount of rainwater from entering the smoke pipe assembly.

[0070] Furthermore, as 7 and Figure 9 As shown, the convex bulge 32 is provided with a plurality of second through holes 323 along the radial direction of the tube body 31 at one end close to the first through hole 321 . The plurality of second through holes 323 are arranged in sequence around the inner cavity, and the second through holes 323 are connected to the annular cavity.

[0071] The plurality of second through holes 323 are arranged circumferentially, allowing rainwater entering the convex housing 32 through the second through holes 323 to flow out. Furthermore, because the inner wall of the convex housing 322 gradually widens along the central axis L of the tube body toward the end near the end cap 33, the position within the convex housing 322 near the end cap 33 is lower than the inner bottom of the tube cavity. Rainwater can collect at the intersection, preventing backflow and providing effective rain protection.

[0072] Furthermore, if Figure 8 and Figure 11 As shown, the smoke pipe assembly further includes: an elbow 34 , which is connected to the other end of the pipe body 31 .

[0073] The above-mentioned elbow 34 is arranged at the other end of the pipe body 31 for easy installation.

[0074] Example 2

[0075] like Figure 13 As shown, a household appliance comprises: a smoke pipe assembly according to any one of the items, wherein the smoke pipe assembly is suitable for extending outdoors.

[0076] like Figure 7 As shown, the household appliance may be a gas water heater 1. When it rains, when rainwater falls downward in a radial direction perpendicular to the tube body 31, i.e., D, the rainwater will drip into the convex bulge 32 through the second through hole 323 and the first through hole 321 and reach the bottom. Since the bottom section of the convex bulge 32 is lower than the inner bottom of the tube body 31, the rainwater can flow out of the smoke pipe assembly.

[0077] When it rains, when the angle between the rainwater and the radial direction Z of the tube body 31 is acute or obtuse, i.e., E or M, which represent the direction of the rainwater falling, the rainwater will drip into the convex hull 32 through the first through hole 321 and the second through hole 323 of the convex hull 32 and reach the bottom of the convex hull 32. Due to the influence of additional factors such as gravity, the rainwater will not cross the dividing line.

[0078] The above two rain directions that are most unfavorable to the flue pipe will not cause rainwater to flow across the dividing line and enter the pipe body 31, thereby fundamentally preventing corrosive substances such as sulfur dioxide in the rainwater from entering the water heater and corroding the flue pipe assembly and the water heater, and also ensuring the safety of electrical components.

[0079] The smoke pipe assembly of the present invention is used to exhaust smoke. Figure 11 and Figure 12As shown, the flue gas generated during combustion is discharged in a J-direction. That is, the flue gas enters the pipe body 31 from the water heater through the elbow 34 and reaches the convex bulge 32. It is then exhausted from the first and second through-holes 321 and 323 of the convex bulge 32 to the exterior of the flue assembly. The first through-hole 321 is the primary exhaust port, while the second through-hole 323 has less exhaust capacity. The second through-hole 323 primarily serves to drain any residual rainwater that has entered the flue. The direction of the first through-hole 321 is nearly parallel to the axis of the pipe body 31, resulting in low resistance and smooth exhaust. The timely and smooth exhaust of the flue gas effectively prevents the carbon monoxide produced during combustion from accumulating and then spreading within the unit, thereby improving safety.

[0080] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A smoke pipe assembly, characterized in that: include: The tube body (31) encloses the lumen; A retaining ring (324) is provided at the end of the tube cavity. A plurality of first through holes are sequentially provided in an annular direction on the retaining ring (324). The plurality of first through holes (321) are radially distributed with the central axis (L) of the tube body as the center. The first through holes (321) are in communication with the tube cavity. The retaining ring (324) includes a lead-out portion (3241), the lead-out portion (3241) is convexly arranged facing the smoke exhaust direction, and the first through hole (321) is provided in the lead-out portion (3241).

2. The smoke tube assembly according to claim 1, characterized in that: Also includes: A bulge (32) is provided at one end of the tube body (31), the bulge (32) having an inner cavity connected to the tube cavity, the inner diameter of the bulge (32) being larger than the inner diameter of the tube body (31), and the retaining ring (324) being provided on the bulge (32).

3. The smoke tube assembly according to claim 2, characterized in that: The convex hull (32) comprises: A convex shell (322) is circumferentially arranged on the tube body (31), and the convex shell (322) encloses the inner cavity; Wherein, the retaining ring (324) is provided at the end of the convex shell (322).

4. The smoke tube assembly according to claim 3, characterized in that: The convex shell (322) is conical and has a first end and a second end. The inner diameter of the first end is smaller than the inner diameter of the second end. The second end is provided with the retaining ring (324).

5. The smoke tube assembly according to claim 3, characterized in that: The convex shell (322) is a conical shell; and / or the convex shell (322) and the tube body (31) are integrally formed.

6. The smoke tube assembly according to any one of claims 2 to 5, characterized in that: The convex bulge (32) is provided with a plurality of second through holes (323) along the radial direction of the tube body (31) at one end close to the first through hole (321), and the plurality of second through holes (323) are arranged in sequence around the inner cavity, and the second through holes (323) are communicated with the inner cavity.

7. The smoke tube assembly according to any one of claims 1 to 5, characterized in that: The retaining ring (324) is annular, and the smoke tube assembly further comprises: The end cover (33) is connected to the retaining ring (324), and a plurality of the first through holes (321) are provided on the outside of the end cover (33).

8. The smoke tube assembly according to any one of claims 1 to 5, characterized in that: Also includes: The bent pipe (34) is connected to the other end of the pipe body (31).

9. A household appliance, characterized in that: include: The smoke pipe assembly (3) according to any one of claims 1 to 8, wherein the smoke pipe assembly (3) is suitable for extending outdoors.

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