Fireplace smoke exhaust fan

Abstract

The utility model is suitable for the technical field of fireplace smoke exhaust fans, and provides a fireplace smoke exhaust fan which comprises an outer smoke pipe communicated with a fireplace flue. The exhaust mechanism is arranged at the end part of one side of the outer smoke pipe; the exhaust mechanism comprises a hood which is in threaded fit with the outer smoke pipe; the assembling seat is arranged in the hood; the smoke exhaust fan rotates on the inner side of the assembly seat; a heat dissipation cover is arranged on the side, away from the outer smoke pipe, of the hood, and a plurality of heat dissipation holes and smoke guide grooves are formed in the end side, away from the hood, of the heat dissipation cover; according to the utility model, the design of detachable connection is adopted, so that the stability and the sealing performance are ensured, the convenience of assembly and maintenance is greatly improved, the mounting and dismounting processes are simple and rapid, the operation difficulty is reduced, the smoke exhaust fan is guided by the fan to guide smoke, and the smoke guide groove which is inclined upwards is matched with the design of the smoke guide groove which is inclined upwards, so that the smoke exhaust efficiency is improved. Smoke is effectively guided to flow according to a preset path, disorder and vortex are reduced, the smoke exhaust efficiency and stability are improved, and pollution of the smoke to the outer wall is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of fireplace smoke exhaust fans, and in particular relates to a fireplace smoke exhaust fan. Background Art

[0002] As a traditional heating device, fireplaces are widely used in homes and commercial places. However, as people's pursuit of quality of life improves, especially the requirements for indoor air quality become increasingly stringent, the problem of fireplace smoke exhaust has gradually become prominent and has received widespread attention.

[0003] Traditional smoke exhaust systems often have some inherent defects in their design. For example, the smoke exhaust efficiency is low, which means that the smoke generated by the fireplace cannot be quickly and effectively discharged to the outside, resulting in a decrease in indoor air quality and affecting the health and comfort of the occupants;

[0004] What is more noteworthy is that the smoke exhaust duct of traditional fireplaces often adopts an integrated structural design. Although this structure ensures the stability and sealing of the duct to a certain extent, after long-term use, its internal parts may malfunction or performance degradation due to smoke corrosion and accumulated dust. However, due to the integrity of the duct, it becomes extremely difficult to disassemble and repair it, and even the duct structure needs to be destroyed for repair, which undoubtedly increases the difficulty and cost of maintenance. Utility Model Content

[0005] The utility model provides a fireplace smoke exhaust fan, aiming to solve the problems that the traditional smoke exhaust system has low smoke exhaust efficiency, smoke retention and backflow, and the integrated smoke exhaust duct is difficult to repair, which increases the difficulty and cost of maintenance.

[0006] The utility model is implemented as follows: a fireplace smoke exhaust fan comprises an external smoke pipe connected to the fireplace flue; an exhaust mechanism is arranged at one end of the external smoke pipe; the exhaust mechanism comprises: a hood, the hood is a cylindrical structure; an external thread is provided on the side of the hood opposite to the external smoke pipe; an internal thread is provided on the inner side of the external smoke pipe, the hood and the external smoke pipe thread cooperate; an assembly seat is arranged in the hood; a smoke exhaust fan rotates on the inner side of the assembly seat; a motor is arranged on the other side of the assembly seat, the output end of the motor is fixedly connected with the end key of the smoke exhaust fan; a heat dissipation cover is provided on the side of the hood away from the external smoke pipe, a plurality of heat dissipation holes are provided on the end side of the heat dissipation cover away from the hood, and smoke guide grooves are provided on the outer sides of the plurality of heat dissipation holes.

[0007] Preferably, the heat dissipation cover is cylindrical, a plurality of first threaded holes are penetrated through the side wall of the heat dissipation cover, a plurality of second threaded holes are penetrated through the side wall of the hood, and each corresponding first threaded hole and the inner thread of the second threaded hole are matched with the same fastening screw.

[0008] Preferably, the outer diameter of the heat dissipation cover matches the inner diameter of the hood.

[0009] Preferably, the smoke guide groove is arranged to be inclined upward, and the inclination angle of the smoke guide groove is between 30° and 60°.

[0010] Preferably, it also includes a connecting seat, which is integrally formed with the outer smoke pipe, and is arranged on a side of the outer smoke pipe away from the machine cover, and the connecting seat has a plurality of reserved holes distributed in a ring shape along its axis.

[0011] Preferably, sealing gaskets are provided at the connections between the outer smoke pipe, the hood and the heat dissipation cover.

[0012] Preferably, a flexible pad is provided on a side of the connecting seat away from the outer smoke pipe.

[0013] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0014] Firstly, the device guides the smoke through the exhaust fan guided by the fan, and cooperates with the upward inclined smoke guide groove to effectively guide the smoke to flow upward within a certain range. This design not only avoids the smoke from being retained inside the fireplace or flowing back downward, but more importantly, the design of the smoke guide groove enables the smoke to flow along a predetermined path, reduces the turbulence and eddy current of the smoke in the system, further improves the efficiency and stability of the smoke exhaust, and avoids the pollution of the smoke to the outer wall.

[0015] Second: The hood, external smoke pipe and heat dissipation cover of the device are designed to be detachably connected, which ensures stability and sealing while greatly improving the convenience of assembly and maintenance. This connection method makes the installation and disassembly process simple and fast, without the need for complex tools or professional skills, reducing the difficulty of operation. At the same time, when maintenance or replacement of parts is required, this design also greatly reduces the workload of disassembly and reinstallation, improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0018] Figure 3 It is a cross-sectional view of the utility model;

[0019] Figure 4 It is a schematic diagram of the hood structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the connection structure between the smoke exhaust fan and the motor of the utility model;

[0021] Figure 6 It is a schematic diagram of the structure of the smoke exhaust fan of the utility model;

[0022] Figure 7 This utility model Figure 3 A schematic diagram of the enlarged structure at point A;

[0023] In the figure: 1. external smoke pipe; 2. hood; 3. external thread; 4. internal thread; 5. assembly seat; 6. smoke exhaust fan; 7. motor; 8. heat dissipation cover; 9. heat dissipation hole; 10. smoke guide groove; 11. first threaded hole; 12. second threaded hole; 13. fastening screw; 14. connecting seat; 15. reserved hole; 16. sealing gasket; 17. flexible pad. DETAILED DESCRIPTION

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0025] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0026] The utility model embodiment provides a fireplace smoke exhaust fan, such as Figure 1-7 As shown, it includes an external smoke pipe 1 connected to the fireplace flue; an exhaust mechanism arranged at one end of the external smoke pipe 1; the exhaust mechanism includes: a hood 2, the hood 2 is a cylindrical structure; an external thread 3 is provided on the side of the hood 2 opposite to the external smoke pipe 1; an internal thread 4 is provided on the inner side of the external smoke pipe 1, and the hood 2 and the external smoke pipe 1 are threadedly matched; an assembly seat 5 is provided in the hood 2; a smoke exhaust fan 6 rotated on the inner side of the assembly seat 5; a motor 7 is provided on the other side of the assembly seat 5, and the output end of the motor 7 is fixedly connected with the end key of the smoke exhaust fan; a heat dissipation cover 8 is provided on the side of the hood 2 away from the external smoke pipe 1, and a plurality of heat dissipation holes 9 are provided on the end side of the heat dissipation cover 8 away from the hood 2, and smoke guide grooves 10 are provided on the outer sides of the plurality of heat dissipation holes 9.

[0027] It should be noted that due to the defects of low smoke exhaust efficiency, smoke retention and backflow in traditional smoke exhaust systems, and the difficulty of repairing integrated smoke exhaust ducts, which increases the difficulty and cost of maintenance, this solution adopts a detachable connection design, which not only ensures stability and sealing, but also greatly improves the convenience of assembly and maintenance, making the installation and disassembly process simple and fast, reducing the difficulty of operation. At the same time, the smoke is guided by the fan to guide the smoke exhaust fan 6 to guide the smoke, and the upward inclined smoke guide groove 10 design is used to effectively guide the smoke to flow along a predetermined path, reducing turbulence and eddy currents, improving the efficiency and stability of smoke exhaust, and avoiding smoke pollution of the outer wall.

[0028] Specifically, in this embodiment, the scheme mainly includes an external smoke pipe 1 connected to the fireplace flue; the smoke generated by the fireplace enters the external smoke pipe 1 through the flue; since the hood 2 and the external smoke pipe 1 are tightly connected by threaded fitting, it is ensured that the smoke can smoothly enter the exhaust mechanism without leakage;

[0029] Inside the exhaust mechanism, the assembly seat 5 fixes the exhaust fan 6 and the motor 7; after the motor 7 is started, its output end drives the exhaust fan 6 to rotate; the rotation of the fan generates negative pressure, sucking the smoke in the external smoke pipe 1 into the hood 2; as the fan continues to rotate, the smoke is sucked in and pushed to the other side of the hood 2, and finally discharged through the heat dissipation holes 9 on the heat dissipation cover 8;

[0030] The design of the heat dissipation cover 8 not only helps to discharge smoke, but also enhances the heat dissipation effect through the heat dissipation holes 9 thereon; these heat dissipation holes 9 allow the heat generated by the motor 7 and the smoke exhaust fan 6 to escape, thereby preventing overheating; at the same time, the smoke guide grooves 10 outside the heat dissipation holes 9 can guide the direction of smoke flow, ensure that the smoke can be discharged smoothly, and reduce the possibility of smoke staying;

[0031] During the entire working process, the threaded connection method ensures the stability and sealing between the exhaust mechanism and the external smoke pipe 1, while improving the convenience of subsequent disassembly and maintenance, so that the entire smoke exhaust system can operate efficiently and safely.

[0032] In a further preferred embodiment of the present invention, Figure 2 As shown, the heat dissipation cover 8 is cylindrical, and a plurality of first threaded holes 11 are penetrated through the side wall of the heat dissipation cover 8, and a plurality of second threaded holes 12 are penetrated through the side wall of the hood 2, and each corresponding first threaded hole 11 and the internal thread 4 of the second threaded hole 12 are matched with the same fastening screw 13.

[0033] In this embodiment, the heat dissipation cover 8 and the hood 2 are first plugged in and assembled, and then fixed by screwing the fastening screws 13. This assembly method not only significantly improves the convenience of installation and makes the operation simpler and faster, but also ensures the stability of the connection and the reliability of the exhaust mechanism during operation. Through the dual fixation of plugging in and fastening the screws 13, the connection between the heat dissipation cover 8 and the hood 2 is more secure, effectively preventing loosening and falling off.

[0034] In a further preferred embodiment of the present invention, Figure 1-2 As shown, the outer diameter of the heat dissipation cover 8 is consistent with the inner diameter of the hood 2.

[0035] In this embodiment, when fixing by tightening the screws 13, since the sizes of the two are consistent, the screws can be stressed more evenly, avoiding uneven stress and looseness problems caused by size mismatch. This stable connection not only ensures the reliability of the exhaust mechanism during operation, but also extends its service life.

[0036] In a further preferred embodiment of the present invention, Figure 3 As shown, the smoke guide groove 10 is tilted upward, and the tilt angle of the smoke guide groove 10 is between 30° and 60°.

[0037] In this embodiment, the upwardly inclined smoke guide groove 10 can effectively guide the smoke to flow upward and prevent the smoke from being retained inside the fireplace or flowing back downward. This helps to ensure that the smoke can be discharged smoothly and improve the smoke exhaust efficiency. Within the range of 30° to 60°, the smoke guide groove 10 can maintain a sufficient inclination to guide the smoke to rise, and will not increase the smoke flow due to excessive angle.

[0038] In a further preferred embodiment of the present invention, Figure 1-2 As shown, it also includes a connecting seat 14, which is integrally formed with the outer smoke pipe 1. The connecting seat 14 is arranged on a side of the outer smoke pipe 1 away from the hood 2, and the connecting seat 14 has a plurality of reserved holes 15 distributed in an annular manner along its axis.

[0039] In this embodiment, the one-piece design ensures the connection strength and stability between the connection base 14 and the external smoke pipe 1, avoiding problems such as air leakage or falling off due to loose connection, and the reserved hole 15 is used to fix the device to the wall.

[0040] In a further preferred embodiment of the present invention, Figure 2 As shown, sealing gaskets 16 are provided at the connections between the outer smoke pipe 1, the hood 2 and the heat dissipation cover 8.

[0041] In this embodiment, the sealing gasket 16 can fill the tiny gap at the connection to ensure that the smoke can be discharged smoothly through the outer smoke pipe 1, thereby improving the smoke exhaust efficiency.

[0042] In a further preferred embodiment of the present invention, Figure 3 As shown, a flexible pad 17 is provided on the side of the connecting seat 14 away from the outer smoke pipe 1 .

[0043] In this embodiment, the flexible pad 17 can provide good sealing performance. Since the smoke exhaust system may generate vibration or slight displacement during operation, the flexible pad 17 can fill these dynamic gaps to ensure a tight connection between the connecting seat 14 and other components to prevent smoke leakage.

[0044] Working principle: The smoke generated by the fireplace first enters the external smoke pipe 1 through the flue; in order to ensure that the smoke can smoothly enter the exhaust mechanism without leakage, the hood 2 and the external smoke pipe 1 are tightly connected by threaded fitting; this connection method not only ensures stability and sealing, but also improves the convenience of subsequent disassembly and maintenance;

[0045] Inside the exhaust mechanism, the smoke exhaust fan 6 and the motor 7 are fixed on the assembly seat 5; once the motor 7 is started, its output end drives the smoke exhaust fan 6 to rotate; the rotation of the fan generates negative pressure, effectively sucking the smoke in the external smoke pipe 1 into the hood 2; as the fan continues to rotate, the smoke is smoothly sucked in and pushed to the other side of the hood 2, and finally discharged through the heat dissipation holes 9 on the heat dissipation cover 8;

[0046] The design of the heat dissipation cover 8 not only facilitates the exhaust of smoke, but also significantly enhances the heat dissipation effect through the heat dissipation holes 9 thereon; these heat dissipation holes 9 allow the heat generated by the motor 7 and the smoke exhaust fan 6 to escape, thereby effectively preventing the occurrence of overheating; in addition, the smoke guide groove 10 outside the heat dissipation hole 9 is designed to be inclined upward, which can effectively guide the smoke to flow upward within the range of 30° to 60°, avoiding the smoke from being retained inside the fireplace or flowing back downward, thereby improving the smoke exhaust efficiency;

[0047] It is worth mentioning that sealing gaskets 16 are provided at the connections between the outer smoke pipe 1, the hood 2 and the heat dissipation cover 8; these sealing gaskets 16 can fill the tiny gaps at the connections, ensuring that the smoke can be discharged smoothly through the outer smoke pipe 1, further improving the smoke exhaust efficiency;

[0048] In addition, the connection seat 14, as a part of the external smoke pipe 1, adopts an integrated molding design, which not only ensures the connection strength and stability between the connection seat 14 and the external smoke pipe 1, but also avoids problems such as air leakage or falling off caused by loose connection; the reserved hole 15 on the connection seat 14 is used to connect with the wall or other fixing devices to ensure the stability of the entire smoke exhaust system;

[0049] Finally, the flexible pad 17 arranged on the side of the connecting seat 14 away from the external smoke pipe 1 further enhances the sealing performance of the device; since the smoke exhaust system may produce vibrations or slight displacements during operation, the flexible pad 17 can fill these dynamic gaps and ensure a tight connection between the connecting seat 14 and other components, thereby effectively preventing smoke leakage.

[0050] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0051] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0052] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0053] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A fireplace smoke exhaust fan, characterized in that: include: an external flue pipe connected to the fireplace flue; An exhaust mechanism provided at one end of the outer smoke pipe; The exhaust mechanism comprises: A hood, wherein the hood is a cylindrical structure; The side of the hood opposite to the outer smoke pipe is provided with an external thread; The inner side of the outer smoke pipe is provided with an internal thread, and the hood is matched with the thread of the outer smoke pipe; An assembly seat disposed in the hood; A smoke exhaust fan rotating inside the assembly seat; A motor is arranged on the other side of the assembly seat, and the output end of the motor is fixedly connected with the end key of the smoke exhaust fan; A heat dissipation cover is arranged on the side of the hood away from the outer smoke pipe, a plurality of heat dissipation holes are opened on the end side of the heat dissipation cover away from the hood, and smoke guide grooves are arranged on the outer sides of the plurality of heat dissipation holes.

2. A fireplace smoke exhaust fan according to claim 1, characterized in that: The heat dissipation cover is cylindrically arranged, and a plurality of first threaded holes are penetrated through the side wall of the heat dissipation cover, and a plurality of second threaded holes are penetrated through the side wall of the hood, and each corresponding first threaded hole and the inner thread of the second threaded hole are matched with the same fastening screw.

3. A fireplace smoke exhaust fan as claimed in claim 2, characterized in that: The outer diameter of the heat dissipation cover is consistent with the inner diameter of the hood.

4. A fireplace smoke exhaust fan according to claim 1, characterized in that: The smoke guide groove is arranged to be tilted upward, and the tilt angle of the smoke guide groove is between 30° and 60°.

5. A fireplace smoke exhaust fan as claimed in claim 1, characterized in that: It also includes a connecting seat, which is integrally formed with the outer smoke pipe. The connecting seat is arranged on a side of the outer smoke pipe away from the machine cover, and the connecting seat has a plurality of reserved holes distributed in an annular manner along its axis.

6. A fireplace smoke exhaust fan as claimed in claim 5, characterized in that: Sealing gaskets are provided at the connections between the outer smoke pipe, the engine cover and the heat dissipation cover.

7. A fireplace smoke exhaust fan as claimed in claim 5, characterized in that: A flexible pad is arranged on one side of the connecting seat away from the outer smoke pipe.

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