Heating furnace with external fan

Abstract

The heating furnace comprises a heating furnace main body and the fan, an air inlet box is assembled on the outer side of the heating furnace main body, a communicating air frame is assembled at the top end of the air inlet box, and the top end of the communicating air frame is connected with the heating furnace main body; an air pipe is assembled at the output end of the fan, a communicating pipe is assembled on the side portion of the air inlet box, and a sealing cover is assembled between the air pipe and the communicating pipe. Sealing openings are formed in the two side walls of the sealing cover, the air pipe is inserted into the left sealing opening, and the communicating pipe is inserted into the right sealing opening; a filter body is assembled at the end part of the air pipe in the sealing cover, a filter opening is formed in the side wall of the filter body, and a filter screen is mounted in the filter opening; according to the heating furnace with the external draught fan, the dust removal net is arranged at the air inlet of the air inlet box, so that air sucked into the outside is filtered, the sealing cover is arranged at the air pipe of the draught fan, the filtering body is arranged in the sealing cover, the sucked air can be secondarily filtered, and the situation that the draught fan is blocked, and use is affected is prevented.

Description

Technical Field

[0001] This patent relates to the field of heating stoves, specifically a heating stove with an external fan. Background Art

[0002] A heating furnace is a type of civilian boiler, which mainly refers to a normal-pressure boiler that can meet people's heating needs. In order to increase the output of warm air, existing heating furnaces have built-in fans to increase the output of warm air. Since the temperature inside the heating furnace is relatively high, the internal electrical and sealing components of the fan are easily aged due to the heat, resulting in a shorter service life of the fan. In addition, when the outside air enters the hot air channel inside the heating furnace through the fan, the gas flow rate is relatively fast, and the air stays in the hot air channel for a short time. The air is discharged outside the furnace before it is fully heated, resulting in a low heat utilization rate of the heating furnace. Therefore, an external fan is needed to solve the above problems.

[0003] However, the heating stove with an external fan in the prior art is not convenient for filtering the air inhaled from the outside, and is prone to clogging of the fan, affecting its use. Therefore, there is a need to improve the prior art. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this patent is to provide a heating stove with an external fan.

[0005] The technical solution adopted by this patent to solve its technical problem is: a heating stove with an external fan, including a heating stove body and a fan, an air inlet box is installed on the outside of the heating stove body, a connecting air frame is installed on the top of the air inlet box, and the top of the connecting air frame is connected to the heating stove body;

[0006] The output end of the fan is equipped with an air duct, the side of the air inlet box is equipped with a connecting pipe, and a sealing cover is installed between the air duct and the connecting pipe;

[0007] Both side walls of the sealing cover are provided with sealing openings, the air duct is plugged into the sealing opening on the left side, and the connecting pipe is plugged into the sealing opening on the right side;

[0008] The end of the air duct is located in the sealing cover and is equipped with a filter body, the side wall of the filter body is provided with a filter port, and a filter screen is installed in the filter port;

[0009] An air inlet is provided on the side wall of the air inlet box, and a dustproof net is embedded in the air inlet.

[0010] Furthermore, a fixing ring is mounted on the outside of the filter screen, the outer wall of the fixing ring is fitted with the inner wall of the filter port, a fixing cavity is opened on both sides of the inner wall of the filter body, and a fixing block is installed on both sides of the outer wall of the fixing ring, and the fixing block is installed in the fixing cavity.

[0011] Furthermore, a spring is installed on the top of the fixing block, an insert rod is installed on the end of the spring, a fixing hole is opened through the inner wall of the fixing cavity, and the insert rod is inserted into the fixing hole.

[0012] Furthermore, a limit plate is sleeved on the outside of the insertion rod in the fixing cavity, and the outer diameter of the limit plate is larger than the inner diameter of the fixing hole.

[0013] Furthermore, the end of the insertion rod is provided with an arc surface.

[0014] Furthermore, the inner wall of the sealing cover is provided with an internal thread, and the outer wall of the connecting pipe is provided with an external thread.

[0015] Furthermore, a smoke exhaust pipe is installed at the top of the heating stove body, and an air outlet is opened on the outer wall of the heating stove body.

[0016] The beneficial effects of this patent are:

[0017] A heating stove with an external fan has a simple structure and is easy to operate. The external fan is arranged on the outside of the heating stove main body, and an air inlet box is arranged between the two. A dust removal net is arranged at the air inlet of the air inlet box to filter the air inhaled from the outside. A sealing cover is provided at the air duct of the fan, and a filter body is provided in the sealing cover. The inhaled air can be filtered twice to prevent the fan from being blocked and affecting its use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of this patent.

[0019] Figure 2 It is a cross-sectional view of the sealing cover of this patent.

[0020] Figure 3 It is a schematic diagram of the fixed body of this patent.

[0021] Figure 4 This is a structural diagram of Part A of this patent.

[0022] Explanation of the accompanying symbols: 1. Heating stove main body; 2. Connecting air frame; 3. Fan; 4. Air duct; 5. Sealing cover; 6. Connecting pipe; 7. Dust screen; 8. Air inlet; 9. Air inlet box; 10. Sealing port; 11. Filter body; 12. Internal thread; 13. External thread; 14. Filter port; 15. Fixing ring; 16. Filter screen; 17. Fixing cavity; 18. Fixing hole; 19. Arc surface; 20. Insert rod; 21. Limiting plate; 22. Spring; 23. Fixing block; 24. Exhaust pipe; 25. Air outlet. DETAILED DESCRIPTION

[0023] The present invention is further described below with reference to specific embodiments. It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this patent, those skilled in the art may make various changes or modifications to the present invention, and that these equivalent forms also fall within the scope defined by the appended claims.

[0024] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4 This is a schematic diagram of the structure of this patent, a heating stove with an external fan, including a heating stove body 1 and a fan 3, the outside of the heating stove body 1 is equipped with an air inlet box 9, the top of the air inlet box 9 is equipped with a ventilation frame 2, the top of the ventilation frame 2 is connected to the heating stove body 1, the heating stove body 1 is the same as the one in the prior art patent No. CN202323033954.6, the model of the fan 3 is DFZA-B, the fan 3 is connected to the air inlet box 9, so as to inhale the outside air;

[0025] The output end of the fan 3 is equipped with an air duct 4, the side of the air inlet box 9 is equipped with a connecting pipe 6, and a sealing cover 5 is installed between the air duct 4 and the connecting pipe 6;

[0026] The sealing cover 5 has sealing openings 10 on both sides. The air duct 4 is plugged into the sealing opening 10 on the left side, and the connecting pipe 6 is plugged into the sealing opening 10 on the right side.

[0027] The end of the air duct 4 is located in the sealing cover 5 and is equipped with a filter body 11. The side wall of the filter body 11 is provided with a filter port 14. A filter screen 16 is installed in the filter port 14. The filter screen 16 can prevent dust from entering the fan 3 and causing blockage.

[0028] The side wall of the air inlet box 9 is provided with an air inlet 8 , and a dustproof net 7 is embedded in the air inlet 8 . External air is sucked in through the air inlet 8 and is prevented from entering by the dustproof net 7 .

[0029] The outside of the filter screen 16 is provided with a fixing ring 15, and the outer wall of the fixing ring 15 is fitted with the inner wall of the filter port 14. The inner walls on both sides of the filter body 11 are provided with fixing cavities 17, and the outer walls on both sides of the fixing ring 15 are installed with fixing blocks 23. The fixing blocks 23 are installed in the fixing cavities 17. By installing the fixing blocks 23 into the fixing cavities 17, the fixing ring 15 is installed in the filter port 14, and the outer wall of the fixing ring 15 is fitted with the inner wall of the filter building 14.

[0030] A spring 22 is installed at the top of the fixing block 23, and an insertion rod 20 is installed at the end of the spring 22. A fixing hole 18 is opened through the inner wall of the fixing cavity 17, and the insertion rod 20 is inserted into the fixing hole 18. Through the elasticity of the spring 22, the insertion rod 20 is inserted into the fixing hole 18, thereby fixing the fixing block 23 in the fixing cavity 17.

[0031] The outer portion of the inserting rod 20 is located in the fixing cavity 17 and is sleeved with a limiting plate 21 . The outer diameter of the limiting plate 21 is larger than the inner diameter of the fixing hole 18 .

[0032] The end of the insertion rod 20 is provided with an arc surface 19 , which facilitates the insertion rod 20 to enter and exit the fixing hole 18 .

[0033] The inner wall of the sealing cover 5 is provided with an internal thread 12 , and the outer wall of the connecting pipe 6 is provided with an external thread 13 . The sealing cover 5 is connected to the connecting pipe 6 by threaded engagement, and the sealing cover 5 can move left and right outside the air duct 4 .

[0034] A smoke exhaust pipe 24 is installed at the top of the heating stove body 1 , and an air outlet 25 is opened on the outer wall of the heating stove body 1 .

[0035] Working process and principle: When in use, start the heating stove main body 1 and the fan 3. The fan 3 is connected to the air inlet box 9, and can inhale external air from the air inlet 8. At the same time, it is dust-proofed through the dustproof net 7 and enters the interior of the heating stove main body 1 through the connecting frame 2.

[0036] It will be apparent to those skilled in the art that this patent is not limited to the details of the exemplary embodiments described above, and that this patent can be implemented in other specific forms without departing from the spirit or essential characteristics of this patent. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of this patent is defined by the appended claims rather than the foregoing description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be encompassed within this patent. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0037] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A heating stove with an external fan, comprising a heating stove body (1) and a fan (3), characterized in that: An air inlet box (9) is mounted on the outside of the heating stove body (1), a connecting air frame (2) is mounted on the top of the air inlet box (9), and the top of the connecting air frame (2) is connected to the heating stove body (1); The output end of the fan (3) is equipped with an air duct (4), the side of the air inlet box (9) is equipped with a connecting pipe (6), and a sealing cover (5) is installed between the air duct (4) and the connecting pipe (6); Both side walls of the sealing cover (5) are provided with sealing openings (10), the air duct (4) is plugged into the sealing opening (10) on the left side, and the connecting pipe (6) is plugged into the sealing opening (10) on the right side; The end of the air duct (4) is located in the sealing cover (5) and is equipped with a filter body (11). The side wall of the filter body (11) is provided with a filter port (14), and a filter screen (16) is installed in the filter port (14). An air inlet (8) is provided on the side wall of the air inlet box (9), and a dustproof net (7) is embedded in the air inlet (8).

2. The heating stove with an external fan according to claim 1, characterized in that: A fixing ring (15) is sleeved on the outside of the filter screen (16), and the outer wall of the fixing ring (15) is arranged in contact with the inner wall of the filter port (14). The inner walls on both sides of the filter body (11) are provided with fixing cavities (17). The outer walls on both sides of the fixing ring (15) are provided with fixing blocks (23), and the fixing blocks (23) are installed in the fixing cavities (17).

3. The heating stove with an external fan according to claim 2, characterized in that: A spring (22) is installed at the top of the fixing block (23), an insert rod (20) is installed at the end of the spring (22), a fixing hole (18) is formed through the inner wall of the fixing cavity (17), and the insert rod (20) is inserted into the fixing hole (18).

4. The heating stove with an external fan according to claim 3, characterized in that: The outside of the insertion rod (20) is located in the fixing cavity (17) and is sleeved with a limit plate (21), wherein the outer diameter of the limit plate (21) is larger than the inner diameter of the fixing hole (18).

5. The heating stove with an external fan according to claim 4, characterized in that: The end of the insertion rod (20) is provided with an arc surface (19).

6. The heating stove with an external fan according to claim 1, characterized in that: The inner wall of the sealing cover (5) is provided with an internal thread (12), and the outer wall of the connecting pipe (6) is provided with an external thread (13).

7. The heating stove with an external fan according to claim 1, characterized in that: The top of the heating stove body (1) is equipped with a smoke exhaust pipe (24), and the outer wall of the heating stove body (1) is provided with an air outlet (25).

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