Smoke backflow prevention mechanism of particle barbecue oven
By designing a smoke backflow prevention mechanism in the pellet barbecue grill, using the smoke exhaust fan and the conical backflow smoke prevention tube, the smoke path is changed and backflow is prevented, thus solving the smoke backflow problem, improving the emission effect and protecting the health of the barbecue chef.
Patent Information
- Application Number
- CN202422412302.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-10-08
AI Technical Summary
The smoke generated by the existing pellet barbecue stove during the combustion process is easy to flow back, affecting the health of the barbecue chef and having poor emission effect.
A smoke backflow prevention mechanism was designed, including a smoke exhaust fan, a smoke backflow prevention pipe and a conical backflow smoke prevention pipe. The smoke exhaust path was changed and the conical structure was used to prevent smoke backflow. The smoke exhaust area was expanded by combining the smoke hood and the smoke exhaust channel.
It effectively prevents smoke backflow, improves smoke emission effect, and protects the health of barbecue chefs.
Smart Images
Figure CN223365407U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of barbecue grills, in particular to a smoke backflow prevention mechanism for a pellet barbecue grill. Background Art
[0002] A barbecue grill is a barbecue equipment that can be used to make barbecue foods such as grilled lamb kebabs, barbecue, and grilled vegetables. Barbecue grills can be divided into charcoal barbecue grills, gas barbecue grills, and electric barbecue grills according to the different heating sources. According to the different barbecue forms, they can be divided into manual barbecue grills and automatic barbecue grills. According to different uses, they can be divided into household barbecue grills and commercial barbecue grills. The essence of a barbecue grill is to heat and cook food through a heat source. In a narrow sense, a barbecue grill refers to a common barbecue grill that directly allows the heat source to act on the food. In a broad sense, barbecue grills can cover different forms such as teppanyaki, and the fuel of a pellet barbecue grill is mainly pellets.
[0003] There are still certain deficiencies in the use of pellet barbecue grills in the existing technology. Since pellet fuel will produce a large amount of smoke during the combustion process, ordinary smoke exhaust mechanisms will cause smoke reflux when exhausting smoke, which can easily choke the barbecue chef's respiratory tract, affecting his health and resulting in poor smoke exhaust effect. Utility Model Content
[0004] The purpose of the utility model is to provide a pellet barbecue grill anti-smoke backflow mechanism to solve the problem raised in the above background technology that due to the large amount of smoke generated during the combustion of pellet fuel, ordinary smoke exhaust mechanisms will cause smoke backflow when exhausting smoke, and the smoke is easy to choke the barbecue chef's respiratory tract, affecting the health of the body and the poor smoke exhaust effect.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a particle barbecue stove anti-smoke backflow mechanism, comprising a particle barbecue stove, the particle barbecue stove is arranged above the stove frame, the bottom end of the interior of the particle barbecue stove is provided with a ventilation slot, the top end of the interior of the particle barbecue stove is provided with a barbecue mesh plate, smoke exhaust fans are provided on both sides of the particle barbecue stove, the middle position of the interior of the smoke exhaust fan is provided with a fan blade, the bottom surface of the interior of the smoke exhaust fan is provided with a through hole, the outer side of the smoke exhaust fan is provided with a smoke outlet, the smoke outlet is connected to the anti-smoke backflow mechanism. A smoke return pipe is connected, a smoke return pipe is provided at one end of the interior of the smoke return prevention pipe, an inspection cap is provided at the other end of the smoke return prevention pipe, a smoke exhaust port is provided above the smoke exhaust port, a raised smoke exhaust pipe is provided above the smoke exhaust port, a smoke exhaust channel is provided at the rear end above the pellet barbecue grill, smoke collecting hoods are provided at both ends of the smoke exhaust channel, a sealing cover is provided in the middle of the smoke collecting hood, an oil collecting box hanging bracket is provided in the middle of the bottom surface of the smoke exhaust fan, and an oil collecting box is provided inside the oil collecting box hanging bracket.
[0006] In a further embodiment, the cross section of the smoke exhaust channel is configured as a quarter-circular structure, and the bottom surface of the smoke exhaust channel is connected to the pellet barbecue grill by inlaying.
[0007] In a further embodiment, the smoke hood is connected to the smoke exhaust channel by welding, a plurality of smoke inlets are provided on the surface of the smoke exhaust channel, and the smoke hood is fixedly connected to the smoke exhaust fan by a second fixing bolt.
[0008] In a further embodiment, the bottom of the smoke exhaust fan is fixedly connected to the pellet barbecue grill via a mounting bracket, and the mounting bracket is fixedly connected to the pellet barbecue grill via bolts.
[0009] In a further embodiment, the oil collecting box and the oil collecting box suspension frame are connected by inlaying, and the cross section of the oil collecting box is provided with an inverted trapezoidal structure.
[0010] In a further embodiment, the cross-section of the backflow smoke prevention tube is set to a conical structure, and the backflow smoke prevention tube and the anti-smoke backflow tube are set to an integrated structure, and the anti-smoke backflow tube is fixedly connected to the smoke outlet by a first fixing bolt.
[0011] In a further embodiment, the elevated smoke exhaust pipe is fixedly connected to the smoke exhaust port via a plug-in head, a rainproof cap is provided on the top of the elevated smoke exhaust pipe, and the rainproof cap is fixedly connected to the elevated smoke exhaust pipe via threads.
[0012] Compared with the prior art, the beneficial effects of the present invention are:
[0013] 1. The utility model prevents smoke backflow in two ways. First, the smoke exhaust fans are arranged on both sides of the pellet barbecue grill to change the smoke emission path so that the smoke is discharged from the middle to both sides. Compared with the traditional vertical installation structure, this installation method can increase the internal obstruction points, so that the smoke path is not smooth enough, thereby achieving the effect of preventing smoke backflow. Second, a tapered backflow smoke prevention tube is provided at one end of the inner side of the anti-smoke backflow tube. The backflow smoke prevention tube is set to a tapered structure to reduce the smoke outlet position of the pipe mouth. When the smoke refluxes, due to the small pipe mouth, the refluxed smoke will be concentrated around the reflux smoke prevention tube and cannot enter the pipe, thereby achieving the effect of preventing smoke backflow and improving the smoke exhaust effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic structural diagram of a smoke backflow prevention mechanism for a pellet barbecue grill according to the present invention;
[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the pellet barbecue grill of the present invention;
[0016] Figure 3This is a schematic diagram of the internal structure of the smoke backflow prevention pipe of the present invention;
[0017] Figure 4 This is a side view of the smoke exhaust fan of the present invention;
[0018] Figure 5 This is a structural schematic diagram of the smoke collection hood of the present utility model.
[0019] In the figure: 1. Rainproof cap; 2. Raised smoke exhaust pipe; 3. Smoke exhaust port; 4. Inspection cap; 5. Anti-smoke backflow pipe; 6. Pellet barbecue grill; 7. Grill rack; 8. Ventilation slots; 9. Smoke exhaust fan; 10. Smoke outlet; 11. Smoke hood; 12. Smoke outlet; 13. Smoke exhaust duct; 14. Sealing cover; 15. Grill mesh; 16. Plug head; 17. Backflow smoke prevention pipe; 18. First fixing bolt; 19. Fan blade; 20. Mounting bracket; 21. Oil collection box hanging bracket; 22. Oil collection box; 23. Through port; 24. Second fixing bolt. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0021] See also Figure 1-5The utility model provides an embodiment of a particle barbecue stove smoke backflow prevention mechanism, comprising a particle barbecue stove 6, the particle barbecue stove 6 is arranged above the stove frame 7, the bottom end of the interior of the particle barbecue stove 6 is provided with a ventilation slot 8, the top of the interior of the particle barbecue stove 6 is provided with a barbecue mesh plate 15, smoke exhaust fans 9 are provided on both sides of the particle barbecue stove 6, the middle position of the interior of the smoke exhaust fan 9 is provided with a fan blade 19, the bottom surface of the interior of the smoke exhaust fan 9 is provided with a through hole 23, a smoke outlet 10 is provided on the outside of the smoke exhaust fan 9, the smoke outlet 10 is connected to the smoke backflow prevention pipe 5, one end of the interior of the smoke backflow prevention pipe 5 is provided with a backflow smoke blocking pipe 17, the other end of the smoke backflow prevention pipe 5 is provided with an inspection cap 4, a smoke outlet 3 is provided above the backflow smoke blocking pipe 17, a heightened smoke exhaust pipe 2 is provided above the smoke outlet 3, and a smoke exhaust channel 13 is provided at the rear end above the particle barbecue stove 6. Smoke hoods 11 are provided at both ends, a sealing cover 14 is provided in the middle of the smoke hood 11, an oil collecting box hanger 21 is provided in the middle of the bottom surface of the smoke exhaust fan 9, and an oil collecting box 22 is provided inside the oil collecting box hanger 21; the stove rack 7 is used to support and fix the pellet barbecue grill 6, the pellet barbecue grill 6 is used to barbecue food, the ventilation slots 8 are used to increase the ventilation in the pellet barbecue grill 6 to make the fuel flame more vigorous, the barbecue mesh plate 15 is used to place food, the smoke exhaust fan 9 is used to discharge barbecue smoke, the opening 23 is used to discharge the smoke oil collected inside downwardly, the smoke backflow prevention pipe 5 is used to prevent smoke backflow, the smoke exhaust channel 13 is used to expand the smoke exhaust area, the smoke hood 11 is used to collect smoke together, the oil collecting box hanger 21 is used to install and fix the oil collecting box 22, and the oil collecting box 22 is used to collect and store the smoke oil.
[0022] The cross-section of the smoke exhaust duct 13 is set to a quarter-circular structure, and the bottom surface of the smoke exhaust duct 13 is connected to the pellet barbecue grill 6 by inlaying, which facilitates the installation of the bottom surface of the smoke exhaust duct 13 and the pellet barbecue grill 6; the smoke hood 11 and the smoke exhaust duct 13 are connected by welding, and a plurality of smoking ports 12 are provided on the surface of the smoke exhaust duct 13, and the smoke hood 11 and the smoke exhaust fan 9 are fixedly connected by a second fixing bolt 24. The welding connection is used to increase the firmness of the installation of the smoke hood 11 and the smoke exhaust duct 13, and the second fixing bolt 24 is used to fix the smoke hood 11 and the smoke exhaust fan 9.
[0023] The bottom of the smoke exhaust fan 9 is fixedly connected to the pellet barbecue grill 6 through the mounting bracket 20, and the mounting bracket 20 is fixedly connected to the pellet barbecue grill 6 by bolts. The mounting bracket 20 is used to assemble and fix the bottom of the smoke exhaust fan 9 to the pellet barbecue grill 6; the oil collecting box 22 is connected to the oil collecting box suspension bracket 21 by inlaying, and the cross-section of the oil collecting box 22 is provided with an inverted trapezoidal structure, which facilitates the installation or disassembly of the oil collecting box 22 through the inlay connection.
[0024] The cross-section of the backflow smoke prevention tube 17 is set to a conical structure, and the backflow smoke prevention tube 17 and the anti-smoke backflow tube 5 are set to an integrated structure, and the anti-smoke backflow tube 5 is fixedly connected to the smoke outlet 10 by a first fixing bolt 18. The conical structure can shrink the tube mouth of the backflow smoke prevention tube 17 to prevent smoke from flowing back into the backflow smoke prevention tube 17.
[0025] The raised smoke exhaust pipe 2 is fixedly connected to the smoke exhaust port 3 through a plug-in head 16. A rainproof cap 1 is provided on the top of the raised smoke exhaust pipe 2, and the rainproof cap 1 is fixedly connected to the raised smoke exhaust pipe 2 through threads. The plug-in head 16 is used to assemble and fix the raised smoke exhaust pipe 2 and the smoke exhaust port 3, and the rainproof cap 1 is used to seal the top of the raised smoke exhaust pipe 2 to prevent rainwater from entering.
[0026] Working principle: When in use, ignite the pellet fuel and place it inside the pellet grill 6, place the grilling mesh plate 15 above the pellet grill 6, start the smoke exhaust fan 9, make the fan blades 19 rotate at high speed, and arrange the grilled food neatly above the grilling mesh plate 15. The smoke generated during the barbecue is sucked into the smoke exhaust channel 13 through the smoking port 12, and is divided into two paths and transported to the smoke collecting hoods 11 at both ends. It is discharged from the smoke outlet 10 into the smoke backflow prevention pipe 5, and then discharged into the smoke backflow prevention pipe 5 through the backflow smoke preventing pipe 17, and then discharged through the smoke exhaust port 3.
[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.
Claims
1. A smoke backflow prevention mechanism for a pellet barbecue stove, comprising a pellet barbecue stove (6), characterized in that: The pellet grill (6) is arranged above the grill frame (7), the bottom end of the interior of the pellet grill (6) is provided with a ventilation slot (8), the top end of the interior of the pellet grill (6) is provided with a grilling mesh plate (15), smoke exhaust fans (9) are provided on both sides of the pellet grill (6), a fan blade (19) is provided at the middle position of the interior of the smoke exhaust fan (9), a through-hole (23) is provided on the bottom surface of the interior of the smoke exhaust fan (9), a smoke outlet (10) is provided on the outside of the smoke exhaust fan (9), the smoke outlet (10) is connected to the smoke backflow prevention pipe (5), and one end of the interior of the smoke backflow prevention pipe (5) is provided with a backflow prevention pipe (15). A smoke backflow prevention pipe (17) is provided, and the other end of the smoke backflow prevention pipe (5) is provided with an inspection cap (4), a smoke exhaust port (3) is provided above the smoke exhaust port (3), and a raised smoke exhaust pipe (2) is provided above the smoke exhaust port (3), a smoke exhaust channel (13) is provided at the rear end above the pellet barbecue grill (6), smoke hoods (11) are provided at both ends of the smoke exhaust channel (13), a sealing cover (14) is provided in the middle of the smoke hood (11), an oil collection box hanging bracket (21) is provided in the middle of the bottom surface of the smoke exhaust fan (9), and an oil collection box (22) is provided inside the oil collection box hanging bracket (21).
2. The smoke backflow prevention mechanism of a pellet barbecue grill according to claim 1, characterized in that: The cross section of the smoke exhaust channel (13) is set to a quarter-circular structure, and the bottom surface of the smoke exhaust channel (13) is connected to the pellet barbecue grill (6) by embedding.
3. The smoke backflow prevention mechanism of a pellet barbecue grill according to claim 1, characterized in that: The smoke hood (11) is connected to the smoke exhaust channel (13) by welding, a plurality of smoke inlets (12) are provided on the surface of the smoke exhaust channel (13), and the smoke hood (11) is fixedly connected to the smoke exhaust fan (9) by a second fixing bolt (24).
4. The smoke backflow prevention mechanism of a pellet barbecue grill according to claim 1, characterized in that: The bottom of the smoke exhaust fan (9) is fixedly connected to the pellet barbecue grill (6) via a mounting bracket (20), and the mounting bracket (20) is fixedly connected to the pellet barbecue grill (6) via bolts.
5. The smoke backflow prevention mechanism of a pellet barbecue grill according to claim 1, characterized in that: The oil collecting box (22) is connected to the oil collecting box hanging frame (21) by embedding, and the cross section of the oil collecting box (22) is provided with an inverted trapezoidal structure.
6. The smoke backflow prevention mechanism of a pellet barbecue grill according to claim 1, characterized in that: The cross section of the backflow smoke preventing pipe (17) is configured as a conical structure, the backflow smoke preventing pipe (17) and the smoke backflow preventing pipe (5) are configured as an integral structure, and the smoke backflow preventing pipe (5) is fixedly connected to the smoke outlet (10) via a first fixing bolt (18).
7. The smoke backflow prevention mechanism of a pellet barbecue grill according to claim 1, characterized in that: The elevated smoke exhaust pipe (2) is fixedly connected to the smoke exhaust port (3) via a plug-in head (16); a rainproof cap (1) is provided on the top of the elevated smoke exhaust pipe (2), and the rainproof cap (1) is fixedly connected to the elevated smoke exhaust pipe (2) via threads.