Coaxial wall-mounted gas boiler smoke exhaust pipe with built-in filter assembly

Abstract

The utility model discloses a coaxial type fuel gas wall-hanging stove smoke exhaust pipe with a built-in filtering assembly, and relates to the technical field of fuel gas wall-hanging stoves. The smoke exhaust device comprises a smoke exhaust box, an anti-return plate is arranged at the position of a left port in the smoke exhaust box, a filter plate is installed at the position of a right port in the smoke exhaust box, a cleaning frame is arranged on the left side face of the filter plate, a dirt storage box in bolted connection with the lower port of the smoke exhaust box is arranged at the lower port of the smoke exhaust box, and inclined plates inclined relatively are arranged at the left portion and the right portion in the dirt storage box. The inclined plate is inserted into a T-shaped opening in the side wall of the dirt storage box through a T-shaped block fixed to the end face. According to the utility model, the anti-return plate and the assembly pipe are matched for use, so that the backflow of sucked smoke can be avoided, and meanwhile, the cleaning frame and the dirt storage box are matched for use, so that dirt on the filter plate can be conveniently removed and collected.

Description

Technical Field

[0001] This utility model belongs to the technical field of gas wall-hung boilers, and in particular relates to a coaxial gas wall-hung boiler exhaust pipe with built-in filter components. Background Technology

[0002] A wall-hung boiler is a high-efficiency household gas appliance that integrates heating and domestic hot water supply functions. It is usually installed on the wall to save space. Gas wall-hung boilers have a powerful central heating function that can meet the heating needs of multiple rooms. In addition, they can also provide hot water for bathing. The heat preservation function of gas wall-hung boilers is affected by local climate conditions and the building's insulation. Since wall-hung boilers produce a large amount of flue gas when they are working, a corresponding flue pipe is needed to exhaust the flue gas from the boiler.

[0003] However, most existing flue pipes are used in conjunction with exhaust fans to draw in flue gas from the wall-hung boiler. Because these flue pipes lack backflow prevention, when the exhaust fan stops working, the flue gas in the flue pipe can flow back into the boiler, causing leakage. Furthermore, after the filter in the flue pipe filters the flue gas, impurities remain on the filter structure, leading to clogging due to the lack of a cleaning mechanism. Therefore, we provide a coaxial gas wall-hung boiler flue pipe with a built-in filter to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a coaxial gas wall-hung boiler exhaust pipe with built-in filter components. By using the anti-backflow plate and the assembly pipe together, the backflow of the smoked gas can be avoided. At the same time, the cleaning rack and the scale collection box together facilitate the removal and collection of dirt on the filter plate.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a coaxial gas wall-hung boiler exhaust pipe with a built-in filter assembly, including an exhaust box; an anti-backflow plate is provided at the left port of the exhaust box, a filter plate is installed at the right port of the exhaust box, a cleaning rack is provided on the left side of the filter plate, and a scale storage box is bolted to the lower port of the exhaust box. Inclined plates with relative inclination are provided on the left and right sides of the scale storage box, and T-shaped blocks are fixed to the end faces of the inclined plates and inserted into the T-shaped openings on the side walls of the scale storage box.

[0007] The present invention is further configured such that an assembly pipe is installed at the left port of the smoke exhaust box and an installation pipe is installed at the right port of the smoke exhaust pipe.

[0008] The present invention is further configured such that a positioning frame is installed on the top surface of the smoke exhaust box located to the right of the anti-backflow plate, and a spring is provided between the anti-backflow plate and the positioning frame.

[0009] The present invention is further configured such that a positioning arc hole is provided through the lower end face of the positioning frame at the position corresponding to the spring, and an arc-shaped rod passing through the spring and the positioning arc hole is fixed on the right side of the anti-return plate.

[0010] The present invention is further configured such that the upper end face of the anti-backflow plate passes through the sleeve holes on the front and rear sides, and a rotating rod is provided inside the sleeve holes. The front and rear ends of the rotating rod are fitted with sleeves that are bolted to the inner side wall of the exhaust box.

[0011] The present invention is further configured such that a working box is provided inside the smoke exhaust box located to the left of the cleaning rack, and a locking block is fixed on the surface of the working box and bolted to the top surface of the smoke exhaust box.

[0012] The present invention is further configured such that a second bevel gear is fixed to the shaft end of the cleaning frame passing through the working box, and a rotating block is provided outside the smoke exhaust box. The shaft of the rotating block passes through the smoke exhaust box and is fixed to the end face inside the working box with a first bevel gear that meshes with the second bevel gear.

[0013] This utility model has the following beneficial effects:

[0014] The exhaust fan draws air into the smoke chamber, creating a negative pressure that controls the rotation of the anti-backflow plate. The anti-backflow plate opens the port of the assembly pipe, allowing the generated smoke to enter the smoke chamber. Therefore, after the exhaust fan stops working, the anti-backflow plate automatically resets and blocks the port of the assembly pipe, thus preventing the backflow of smoke.

[0015] The filter plates perform preliminary filtration of the inhaled flue gas, blocking larger particles. At the same time, the cleaning rack rotates, scraping off the dirt on the surface of the filter plates. The scraped dirt falls directly onto the inclined plate and slides into the dirt collection box. This allows for regular cleaning and recycling of the dirt on the filter plates, preventing them from becoming clogged. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a diagram showing the overall internal structure of this utility model.

[0018] Figure 2This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 3 This is a cross-sectional view of the overall structure of this utility model.

[0020] Figure 4 This is an exploded view of the anti-return plate in this utility model.

[0021] Figure 5 This is a structural assembly diagram of the cleaning frame, rotating block, and working box in this utility model.

[0022] Figure 6 This is a structural assembly diagram of the cleaning frame and rotating block in this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1-Smoke exhaust box, 101-Assembly pipe, 102-Installation pipe, 2-Scale storage box, 201-Inclined plate, 202-T-shaped block, 3-Anti-back plate, 301-Sleeve hole, 302-Arc rod, 303-Positioning frame, 304-Positioning arc hole, 305-Spring, 306-Rotating rod, 307-Sleeve, 4-Filter plate, 5-Cleaning frame, 501-Rotating block, 502-Locking block, 503-Working box, 504-Bevel gear one, 505-Bevel gear two. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0026] Example 1

[0027] Please see Figures 1 to 6 This utility model is a coaxial gas wall-hung boiler exhaust pipe with built-in filter components. Through the cooperation between the anti-backflow plate 3 and the assembly pipe 101, the backflow of the smoked gas can be avoided. At the same time, the cooperation between the cleaning rack 5 and the scale storage box 2 makes it easy to clean and collect the dirt on the filter plate 4.

[0028] Specifically, the exhaust box 1 has an anti-backflow plate 3 installed at the left port of the exhaust box 1, a filter plate 4 installed at the right port of the exhaust box 1, a cleaning rack 5 installed on the left side of the filter plate 4, a scale storage box 2 bolted to the lower port of the exhaust box 1, and inclined plates 201 with relative inclinations installed on the left and right sides of the scale storage box 2. The inclined plates 201 are fixed to the end face with T-shaped blocks 202 and inserted into the T-shaped openings on the side wall of the scale storage box 2. An assembly pipe 101 is installed at the left port of the exhaust box 1, and an installation pipe 102 is installed at the right port of the exhaust pipe.

[0029] The operation process of this embodiment is as follows: With the above-mentioned structure, the assembly pipe 101 at the left end of the flue box 1 is installed at the flue outlet of the gas wall-hung boiler, and the installation pipe 102 at the right end of the flue box 1 is connected to the port of the exhaust fan. Therefore, after the exhaust fan is working, it will draw the flue gas generated in the gas wall-hung boiler. The exhaust fan draws the flue box 1, which creates a certain negative pressure in the flue box 1. This will control the anti-backflow plate 3 to rotate and move. The anti-backflow plate 3 opens the port of the assembly pipe 101, so that the generated flue gas can enter the flue box 1. Then, the filter plate 4 performs preliminary filtration on the drawn flue gas, so that larger particles are filtered and blocked. At the same time, the cleaning rack 5 is controlled to rotate. The cleaning rack 5 scrapes off the dirt on the surface of the filter plate 4. The scraped dirt will fall directly onto the inclined plate 201 and slide into the scale storage box 2.

[0030] Example 2

[0031] Please see Figure 1 , Figure 3 and Figure 4 Based on Example 1, the anti-return plate 3 is reset by the cooperation between the spring 305 and the positioning frame 303.

[0032] Specifically, a positioning frame 303 is installed on the top surface of the smoke exhaust box 1 located to the right of the anti-backflow plate 3. A spring 305 is provided between the anti-backflow plate 3 and the positioning frame 303. A positioning arc hole 304 is provided through the lower end of the positioning frame 303 at the position corresponding to the spring 305. An arc-shaped rod 302 is fixed on the right side of the anti-backflow plate 3, passing through the spring 305 and the positioning arc hole 304. The upper end of the anti-backflow plate 3 has sleeve holes 301 that pass through the front and rear sides. A rotating rod 306 is provided inside the sleeve hole 301. Sleeves 307 that are bolted to the inner side wall of the smoke exhaust box 1 are fitted at the front and rear ends of the rotating rod 306.

[0033] The operation process of this embodiment is as follows: When the anti-backflow plate 3 rotates, it will rotate along the rotating rod 306 through the sleeve hole 301. At the same time, the anti-backflow plate 3 will control the arc rod 302 to slide along the path of the positioning arc hole 304 and compress the spring 305. Therefore, when the exhaust fan stops working, the spring 305 will push the anti-backflow plate 3 to reset and block the port of the assembly pipe 101 again. At the same time, when disassembling the anti-backflow plate 3 and the positioning frame 303, the scale box 2 is removed from the lower end of the exhaust box 1. Since the positioning frame 303 is bolted to the inner top wall of the exhaust box 1, the sleeve 307 and the positioning frame 303 can be directly disassembled from the exhaust box 1. The sleeve 307 is pulled out at the end of the rotating rod 306, and the rotating rod 306 can be pulled out in the sleeve hole 301, which facilitates the disassembly and assembly of the anti-backflow plate 3.

[0034] Example 3

[0035] Please see Figure 5 and Figure 6 Based on Example 1, the meshing between bevel gear 504 and bevel gear 505 facilitates control of the rotation of the cleaning frame 5.

[0036] Specifically, a working box 503 is installed inside the smoke exhaust box 1 located to the left of the cleaning frame 5. A locking block 502 is fixed on the surface of the working box 503 and bolted to the top surface of the smoke exhaust box 1. A bevel gear 505 is fixed to the shaft end of the cleaning frame 5 passing through the working box 503. A rotating block 501 is installed outside the smoke exhaust box 1. A bevel gear 504 that meshes with the bevel gear 505 is fixed to the end face of the rotating block 501 that passes through the smoke exhaust box 1 and is inside the working box 503.

[0037] The operation process of this embodiment is as follows: In order to facilitate the control of the rotation of the cleaning frame 5, the rotating block 501 can be controlled to rotate. The rotating block 501 will drive the first bevel gear 504 to rotate and control the second bevel gear 505 to rotate, thereby driving the cleaning frame 5 to rotate on the side of the filter plate 4 to clean the dirt on the side of the filter plate 4.

[0038] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A coaxial gas-fired wall-mounted boiler exhaust pipe with a built-in filter assembly, comprising an exhaust box (1); characterized in that: An anti-backflow plate (3) is provided at the left port of the smoke exhaust box (1), a filter plate (4) is installed at the right port of the smoke exhaust box (1), a cleaning rack (5) is provided on the left side of the filter plate (4), a scale storage box (2) is bolted to the lower port of the smoke exhaust box (1), and an inclined plate (201) is provided on the left and right sides of the scale storage box (2). The inclined plate (201) is fixed to the end face with a T-shaped block (202) and inserted into the T-shaped opening on the side wall of the scale storage box (2).

2. The coaxial gas wall-hung boiler exhaust pipe with built-in filter assembly according to claim 1, characterized in that, An assembly pipe (101) is installed at the left port of the exhaust box (1), and an installation pipe (102) is installed at the right port of the exhaust pipe.

3. The coaxial gas wall-hung boiler exhaust pipe with built-in filter assembly according to claim 1, characterized in that, A positioning frame (303) is installed on the top surface of the smoke exhaust box (1) located to the right of the anti-backflow plate (3), and a spring (305) is provided between the anti-backflow plate (3) and the positioning frame (303).

4. The coaxial gas wall-hung boiler exhaust pipe with built-in filter assembly according to claim 3, characterized in that, The lower end of the positioning frame (303) is provided with a positioning arc hole (304) at the position corresponding to the spring (305), and the right side of the anti-return plate (3) is fixed with an arc rod (302) that passes through the spring (305) and the positioning arc hole (304).

5. The coaxial gas wall-hung boiler exhaust pipe with built-in filter assembly according to claim 1, characterized in that, The upper end face of the anti-backflow plate (3) has sleeve holes (301) that penetrate the front and rear sides. A rotating rod (306) is provided inside the sleeve hole (301). The front and rear ends of the rotating rod (306) are fitted with sleeves (307) that are bolted to the inner side wall of the smoke exhaust box (1).

6. The coaxial gas wall-hung boiler exhaust pipe with built-in filter assembly according to claim 1, characterized in that, Inside the smoke exhaust box (1) located to the left of the cleaning rack (5), there is a work box (503), and a locking block (502) is fixed on the surface of the work box (503) and bolted to the top surface of the smoke exhaust box (1).

7. The coaxial gas wall-hung boiler exhaust pipe with built-in filter assembly according to claim 6, characterized in that, The cleaning frame (5) has a bevel gear two (505) fixed at the shaft end passing through the working box (503). A rotating block (501) is provided outside the smoke exhaust box (1). The shaft of the rotating block (501) passes through the smoke exhaust box (1) and is fixed with a bevel gear one (504) that meshes with the bevel gear two (505) at its end face inside the working box (503).

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