Flue gas distributor

Abstract

The utility model relates to a heating stove, in particular to a smoke distributor which comprises a cavity, the front end, the top end and the rear end of the cavity are fixedly connected with a front opening, an upper opening and a rear opening which are communicated with an inner cavity of the cavity respectively, the front opening is connected with a smoke outlet in the rear upper end of a stove body, the upper opening is connected with a direct discharge chimney, and the rear opening is connected with a kang hole. A cavity is formed in the furnace body, a hinged shaft with the axial direction in the left-right direction is rotationally arranged on the cavity, a baffle is fixedly arranged on the hinged shaft in the cavity, one end of a swing plate is fixedly arranged on the hinged shaft outside the cavity, a push-pull rod is hinged to the other end of the swing plate, and the push-pull rod extends in the furnace body to penetrate out of the front end of the furnace body. Compared with the prior art, the operation safety is improved, the adjusting accuracy is enhanced, and the heating experience and the indoor environment are improved.

Description

Technical Field

[0001] This utility model relates to heating furnaces, and more particularly to a flue gas distributor. Background Technology

[0002] In northern regions, using a heating stove in conjunction with a heated kang (a traditional heated platform bed) for winter heating is a long-standing and deeply intertwined method of heating that is closely related to residents' lives. The kang, with its stable heat storage characteristics and human-like heating method, has become a core facility for maintaining comfortable indoor temperatures during the cold season. However, existing technologies have significant flaws in the flue gas connection between the heating stove and the kang, severely restricting the heating experience and the quality of the living environment: Firstly, the lack of a kang surface temperature control mechanism leads to a decrease in comfort. When a traditional heating stove is running, the high-temperature flue gas produced by combustion is directly and entirely introduced into the kang cavity without diversion. Due to the lack of an effective flue gas path adjustment device, the kang surface temperature is excessively high, seriously affecting the user's normal rest and usage experience. Secondly, positive pressure exhaust exacerbates indoor pollution and health risks. When the heating stove uses a positive pressure exhaust method, the flue gas easily escapes into the room through small cracks in the kang surface, mortar joints, and other weak points, not only emitting a pungent odor and polluting indoor air, but also harming the human respiratory system and threatening residents' health.

[0003] Although existing technologies use distributors in the flue path to achieve flue gas diversion, such as the heating and ventilation three-way valve disclosed in CN205079250U, which uses a switching flap to control the connection between the chimney and the kang (heated brick bed), there are still some drawbacks: ① The fixed hand ball is close to the chimney interface, and the surface temperature of the chimney can reach 200℃-300℃, which makes it easy for operators to be burned during adjustment, and the high temperature environment may also affect the service life of the adjustment components; ② Adjustment relies on experience and lacks quantitative adjustment indicators, making it difficult for users to accurately control the flue gas diversion ratio. Utility Model Content

[0004] To overcome the defects or one of the defects in the existing technology, the purpose of this utility model is to provide a flue gas distributor, and the following technical solution is adopted:

[0005] A flue gas distributor includes a cavity. The front end, top end, and rear end of the cavity are respectively fixedly connected to a front opening, an upper opening, and a rear opening that communicate with the cavity. The front opening is connected to the flue gas outlet at the upper rear end of the furnace body, the upper opening is connected to a straight chimney, and the rear opening is connected to a kang (heated brick bed) hole. A hinge shaft with an axial direction of left and right is rotatably mounted on the cavity. A baffle is fixed on the hinge shaft inside the cavity. One end of a swing plate is fixed on the hinge shaft outside the cavity. A push-pull rod is hinged to the other end of the swing plate. The push-pull rod extends through the furnace body and out of the front end of the furnace body.

[0006] Furthermore, the inner end of the rear opening is inclined, with an angle of 120°-150° with the horizontal plane.

[0007] Furthermore, the length and width of the baffle are both greater than or equal to the larger of the upper opening diameter and the rear opening diameter.

[0008] Furthermore, a retaining strip is fixed to the front end of the push-pull rod, and multiple slots are opened on the lower end face of the retaining strip. A retaining opening is provided on the front panel of the furnace body, and the retaining strip passes through the retaining opening. The slots can be respectively locked on the lower edge of the retaining opening.

[0009] Furthermore, when the last slot is engaged on the lower edge of the slot, the lower end of the baffle abuts against the inner end of the rear opening, the front opening and the upper opening are fully connected, and the front opening and the rear opening are disconnected; when the foremost slot is engaged on the lower edge of the slot, the lower end of the baffle abuts against the inner end of the upper opening, the front opening and the upper opening are disconnected, and the front opening and the rear opening are fully connected; when the slot is engaged at any position in the middle of the lower edge of the slot, the lower end of the baffle is suspended, so that the front opening and the upper opening, and the front opening and the rear opening are all in a partially connected state, and the connection ratio is linearly adjusted according to the position of the slot on the slot, thereby realizing the proportional distribution of flue gas flow.

[0010] Furthermore, the surface of the card strip is marked with the words "Kang Open" and "Kang Closed", which correspond to the connected or disconnected state of the rear opening, respectively; wherein, the "Kang Open" mark corresponds to the card slot position when the rear opening is connected, and the "Kang Closed" mark corresponds to the card slot position when the rear opening is disconnected.

[0011] Furthermore, the front end of the card strip is fixedly connected to the handle ball head.

[0012] Furthermore, the ball head of the handle is a high-temperature resistant plastic ball head.

[0013] Furthermore, the number of card slots is 20.

[0014] Furthermore, the width of the latch is slightly larger than the width of the latch strip, and the height of the latch is much larger than the height of the latch strip to accommodate the swing amplitude of the push-pull rod.

[0015] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0016] Improved operational safety: The push-pull rod extends to the front of the furnace body, allowing operators to work away from the high-temperature chimney interface, avoiding burns and improving operational safety.

[0017] Enhanced adjustment precision: Through the cooperation of push-pull rods, swing plates, hinge shafts and baffles, the flue gas channel can be precisely controlled. The on / off state and connection ratio between the front and upper inlets and between the front and rear inlets can be accurately adjusted according to the position of the slot. This overcomes the problems of existing technology that rely on experience and lack quantitative indicators, and achieves precise flue gas diversion control.

[0018] Improve heating experience and indoor environment: The amount of flue gas entering the kang (heated brick bed) and the direct exhaust chimney can be flexibly adjusted to avoid excessively high kang surface temperature and flue gas escaping into the room, ensuring a comfortable kang temperature, reducing indoor air pollution, and improving the user's heating experience and living environment quality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a structural schematic diagram of the push-pull rod, locking strip, and handle ball head of this utility model.

[0021] Figure 3-5 This is a structural schematic diagram of the baffle of this utility model in different states.

[0022] Figure 6 This is a schematic diagram of the structure of this utility model on the furnace body.

[0023] Figure 7 yes Figure 6 Enlarged view of a section at point A Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] like Figure 1-2 The flue gas distributor shown includes a cavity 1. The front end, top end and rear end of the cavity 1 are respectively fixed to a front port 2, an upper port 3 and a rear port 4 that communicate with the cavity. The front port 2 is connected to the flue gas outlet at the upper rear end of the furnace body, the upper port 3 is connected to the straight exhaust chimney and the rear port 4 is connected to the kang hole. A hinge shaft 5 with the axial direction in the left and right direction is rotatably installed on the cavity 1. A baffle 6 is fixed on the hinge shaft 5 inside the cavity. One end of a swing plate 7 is fixed on the hinge shaft 5 outside the cavity. A push-pull rod 8 is hinged to the other end of the swing plate 7. The push-pull rod 8 extends all the way out of the furnace body and out of the front end of the furnace body.

[0026] In this embodiment, the adjustment components are operated from the front of the furnace body via a push-pull rod, positioning them away from the high-temperature area of ​​the chimney. Users do not need to contact the high-temperature components near the chimney interface, avoiding the risk of burns during operation. This also reduces the impact of high temperatures on the adjustment structure, improving equipment durability. In positive pressure exhaust scenarios, adjustment allows some flue gas to be directly discharged into the chimney, reducing the amount of flue gas entering the kang (heated brick bed), lowering the pressure inside the kang, and preventing flue gas from escaping through gaps in the kang surface.

[0027] In another preferred embodiment, such as Figure 3The inner end of the rear outlet 4 is inclined, with an angle α of 120°-150° to the horizontal plane. This design optimizes the flow path of flue gas within the cavity, effectively reducing the flow resistance when flue gas enters the kang (heated brick bed) and avoiding pressure buildup caused by abrupt right-angle changes in the flow channel. The inclined flow channel allows flue gas to be introduced into the kang more smoothly, reducing the risk of leakage through gaps under positive pressure within the kang. It also helps to evenly distribute the flue gas flow, improving the stability of heat transfer during kang heating and preventing indoor pollution problems caused by localized overheating or excessive pressure.

[0028] In another preferred embodiment, the length and width of the baffle 6 are both greater than or equal to the larger of the diameter of the upper opening 3 and the diameter of the rear opening 4. This dimensional matching ensures that the baffle can form a tight fit with the inner end of the upper opening 3 or the rear opening 4 when rotated to its extreme position, thereby achieving a reliable physical seal when the flue gas passage is fully connected or closed. The slightly smaller size design ensures the flexibility of the baffle rotation while blocking the flue gas leakage path through the fit between the edge and the panel. Especially in positive pressure flue gas exhaust scenarios, it can effectively prevent smoke leakage from unused passages, improving the sealing performance and reliability of the equipment under different operating conditions.

[0029] In another preferred embodiment, such as Figure 2 , 6 As shown in Figure 7, the front end of the push-pull rod 8 is fixedly connected to a retaining strip 9. Multiple slots 91 are formed on the lower end face of the retaining strip 9. A retaining slot 11 is provided on the front panel of the furnace body. The retaining strip 9 passes through the retaining slot 11, and the slots 91 can respectively engage with the lower edge of the retaining slot 11. This structure transforms the linear motion of the push-pull rod into precise gear control. Users can move the retaining strip to position the slots at different positions on the lower edge of the retaining slot, thereby intuitively controlling the rotation angle of the baffle. The multiple slots provide quantifiable adjustment nodes, avoiding the reliance on experience in traditional manual adjustment. This makes the control of the flue gas diversion ratio more operable and repeatable, especially suitable for non-professional users to accurately select the flue gas direction according to actual needs, solving the problems of vague and difficult-to-quantify adjustment in existing technologies.

[0030] In another preferred embodiment, when the last slot 91 is engaged on the lower edge of the latch 11, the lower end of the baffle 6 abuts against the inner end of the rear port 4, the front port 2 and the upper port 3 are fully connected, and the front port 2 and the rear port 4 are disconnected; when the foremost slot 91 is engaged on the lower edge of the latch 11, the lower end of the baffle 6 abuts against the inner end of the upper port 3, the front port 2 and the upper port 3 are disconnected, and the front port 2 and the rear port 4 are fully connected; when the slot 91 is engaged at any position in the middle of the lower edge of the latch 11, the lower end of the baffle 6 is suspended, so that the front port 2 and the upper port 3, and the front port 2 and the rear port 4 are all in a partially connected state, and the connection ratio is linearly adjusted according to the position of the slot 91 on the latch 11, thereby realizing the proportional distribution of flue gas flow; Figure 4As shown in the figure. This design achieves stepless control of flue gas flow through mechanical linkage, which not only meets the gradient adjustment of kang temperature during heating, but also takes into account the needs of stove fire intensity during cooking, enabling the equipment to operate efficiently in different usage scenarios and significantly improving the compatibility of heating and cooking.

[0031] In another preferred embodiment, the surface of the locking strip 9 is marked with the words "Kang Open" and "Kang Closed," corresponding to the on or off state of the rear opening 4, respectively. The "Kang Open" marking corresponds to the position of the locking groove 91 when the rear opening 4 is on, and the "Kang Closed" marking corresponds to the position of the locking groove 91 when the rear opening 4 is off. This design transforms the abstract mechanical locking mechanism into intuitive functional indicators, allowing users to quickly determine the on / off state of the rear opening without relying on experience or additional tools. For example, the "Kang Open" marking clearly indicates the kang (heated brick bed) heating mode where flue gas enters the kang hole, while the "Kang Closed" marking indicates the cooking mode where flue gas is directly discharged into the chimney. This is especially suitable for middle-aged and elderly users or first-time users to quickly master the operation method, reducing the risk of kang temperature loss or flue gas leakage due to misoperation, and improving the human-machine interface and safety of the equipment.

[0032] In another preferred embodiment, the front end of the locking strip 9 is fixedly connected to the handle ball head 10. This ergonomic design provides users with a comfortable operating point of force. The circular structure of the handle ball head fits the palm, facilitating pushing and pulling force, especially in scenarios requiring frequent adjustments, reducing operator fatigue and improving adjustment accuracy. The ball head design also makes the movement of the push-pull rod more stable, avoiding slippage or uneven force problems that may occur if the rod-shaped component is directly gripped, thus enhancing the controllability of the operation process.

[0033] In another preferred embodiment, the handle ball head 10 is a high-temperature resistant plastic ball head, such as bakelite. This material has excellent high-temperature resistance and insulation properties, and is not prone to deformation, softening, or conductivity risks due to high temperatures, even after long-term use at the front of the furnace body. Compared to traditional metal or ordinary plastic handles, the high-temperature resistant plastic ball head maintains structural stability, avoids burns to operators from contact with high-temperature components, extends the service life of adjustment components, and ensures reliable operation of the equipment in long-term high-temperature environments.

[0034] In another preferred embodiment, the number of slots 91 is 20. This design strikes a balance between adjustment precision and ease of operation. The 20 evenly distributed slots provide 19 adjustment levels, allowing the flue gas diversion ratio to be subdivided into multiple gradients. Users can finely control the kang temperature according to seasonal changes, the number of people in the room, and other factors, avoiding the crude adjustment mode of "either on or off," and significantly improving the adaptability and comfort of the equipment to different heating needs.

[0035] In another preferred embodiment, the width of the latch 11 is slightly larger than the width of the latching strip 9, and the height of the latch 11 is much larger than the height of the latching strip 9 to accommodate the swing amplitude of the push-pull rod. The clearance in the width direction ensures that the latching strip can smoothly pass through the latch without jamming, while the allowance in the height direction accommodates the angle changes of the push-pull rod during the swing of the swing plate, avoiding adjustment failures caused by mechanical interference. This structural design improves the flexibility and stability of the push-pull rod's movement. Even after long-term use and slight deformation of the components, it can still ensure reliable locking between the slot and the latch, enhancing the durability and reliability of the equipment's mechanical structure.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flue gas distributor, characterized in that, The cavity includes a cavity (1), the front end, top end and rear end of the cavity (1) are respectively fixed to a front opening (2), an upper opening (3) and a rear opening (4) that communicate with the cavity. The front opening (2) is connected to the smoke outlet at the upper rear end of the furnace body, the upper opening (3) is connected to the straight chimney, and the rear opening (4) is connected to the kang hole. A hinge shaft (5) with the axial direction in the left and right direction is mounted on the cavity (1). A baffle (6) is fixed on the hinge shaft (5) inside the cavity. One end of a swing plate (7) is fixed on the hinge shaft (5) outside the cavity. A push-pull rod (8) is hinged on the other end of the swing plate (7). The push-pull rod (8) extends all the way through the furnace body to the front end of the furnace body.

2. The flue gas distributor according to claim 1, characterized in that The inner end of the rear opening (4) is inclined, and the angle (a) between it and the horizontal plane is 120°-150°.

3. The flue gas distributor of claim 1, wherein, The length and width of the baffle (6) are both greater than or equal to the larger of the diameter of the upper opening (3) and the diameter of the rear opening (4).

4. The flue gas distributor of claim 1, wherein, The front end of the push-pull rod (8) is fixed with a retaining strip (9). Multiple slots (91) are opened on the lower end face of the retaining strip (9). A slot (11) is provided on the front panel of the furnace body. The retaining strip (9) passes through the slot (11). The slots (91) can be respectively locked on the lower edge of the slot (11).

5. The flue gas distributor according to claim 4, characterized in that When the last slot (91) is engaged on the lower edge of the slot (11), the lower end of the baffle (6) abuts against the inner end of the rear port (4), the front port (2) and the upper port (3) are fully connected, and the front port (2) and the rear port (4) are disconnected; when the first slot (91) is engaged on the lower edge of the slot (11), the lower end of the baffle (6) abuts against the inner end of the upper port (3), the front port (2) and the upper port (3) are disconnected, and the front port (2) and the rear port (4) are fully connected; when the slot (91) is engaged at any position in the middle of the lower edge of the slot (11), the lower end of the baffle (6) is suspended, so that the front port (2) and the upper port (3) and the front port (2) and the rear port (4) are in a partially connected state, and the connection ratio is linearly adjusted according to the position of the slot (91) on the slot (11) to realize the proportional distribution of flue gas flow.

6. The flue gas distributor according to claim 4, characterized in that The card strip (9) has the words "Kang Open" and "Kang Closed" on its surface, which correspond to the opening or closing state of the rear opening (4) respectively; wherein, the "Kang Open" mark corresponds to the position of the card slot (91) when the rear opening (4) is open, and the "Kang Closed" mark corresponds to the position of the card slot (91) when the rear opening (4) is closed.

7. The flue gas distributor of claim 4, wherein, The front end of the card strip (9) is fixed to the handle ball head (10).

8. The flue gas distributor according to claim 7, characterized in that, The handle ball head (10) is a high-temperature resistant plastic ball head.

9. The flue gas distributor of claim 4, wherein, The number of card slots (91) is 20.

10. The flue gas distributor of claim 4, wherein, The width of the latch (11) is slightly larger than the width of the latch (9), and the height of the latch (11) is much larger than the height of the latch (9) to accommodate the swing amplitude of the push-pull rod.

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