Air heater with filter screen convenient to clean

Abstract

The utility model discloses an air heater with a filter screen convenient to clean, and relates to the technical field of mechanical fans. The air heater with the filter screen convenient to clean comprises a mounting frame, a feeding assembly is fixedly mounted on one side of the inner bottom wall of the mounting frame, a combustion chamber is fixedly connected to one end of the feeding assembly, a heat converter is fixedly mounted on the upper surface of the combustion chamber, and a connecting assembly is fixedly connected to one side of the outer surface of the combustion chamber; the connecting assembly and the filter screen are arranged on the inner side of the movable plate, the air inlet is protected, dust and impurities in the air can be prevented from entering the equipment, the service life of internal elements is easily affected, the first connecting block and the second connecting block enable one side of the movable plate to be rotationally connected with the combustion chamber through the rotating rod, and the combustion efficiency is improved. And the movable plate is rotationally opened, the first fixing frame can be pulled out of the sliding rod in a sliding mode, and therefore the filter screen is cleaned and replaced, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical fans, in particular to a hot air fan which is convenient for cleaning a filter screen. Background Art

[0002] A hot air blower is a device that heats the air and circulates it. It is widely used in various occasions such as industry, commercial buildings and home heating. Its working principle mainly includes several key steps: first, the hot air blower draws in the surrounding air through a fan or blower; then, the inhaled air is heated by a heat source, which can be an electric heater, gas burner or hot water heat exchanger; next, the heated hot air is sent into the space that needs to be heated and evenly distributed through air ducts or outlets; finally, through air circulation, the hot air blower will draw the cold air back in, effectively heating the entire area.

[0003] Upon investigation, a Chinese utility model patent discloses a hot air blower (publication number: CN209027089U), which includes a hot air blower frame, a combustion chamber installed in the hot air blower frame, a heat conversion system and a detection and protection device. The detection and protection device includes a detection device and a protection device. The hot air blower frame is provided with a fuel tank and a fuel conveyor. The fuel tank, fuel conveyor, combustion chamber and heat conversion system are connected in sequence. The detection device and protection device are fixed on the fuel conveyor. The combustion chamber is provided with a cleaner. The hot air blower frame is provided with a start switch.

[0004] The hot air blower proposed in the aforementioned patent not only improves the combustion efficiency of materials, but also cleans and handles material blockages within the blower, which could lead to reverse combustion and damage to the blower, significantly increasing the safety factor of the hot air blower. Furthermore, the present invention incorporates a protective device connected to the fuel conveyor, which can blow materials back into the combustion chamber and promptly remove ash blown from the combustion chamber into the fuel conveyor, preventing ash from clogging the fuel conveyor.

[0005] However, there is no filter at the air inlet position, which will cause dust and impurities in the air to enter the interior of the equipment, easily affecting the service life of the internal components. Moreover, the filter set in the prior art is mostly located inside the combustion chamber, which is not convenient to clean. Long-term use can easily cause blockage of the filter, affecting the filtering effect.

[0006] Therefore, the present invention provides a hot air blower that is convenient for cleaning the filter to solve the above problems. Utility Model Content

[0007] In view of the deficiencies in the prior art, the present invention provides a hot air blower that is convenient for cleaning the filter, thereby solving the problems raised in the above-mentioned background technology.

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a hot air blower that is convenient for cleaning a filter, comprising a mounting frame, a feeding assembly fixedly mounted on one side of an inner bottom wall of the mounting frame, one end of the feeding assembly fixedly connected to a combustion chamber, a heat converter fixedly mounted on the upper surface of the combustion chamber, a connecting assembly fixedly connected to one side of the outer surface of the combustion chamber, a card slot provided on the inner side of the connecting assembly, a fixing assembly clamped inside the card slot, a driving assembly fixedly connected to the other side of the outer surface of the combustion chamber, and a cleaning assembly fixedly connected to the lower surface of the driving assembly;

[0009] The connecting assembly includes a first connecting block, the back of which is fixedly connected to one side of the outer surface of the combustion chamber, the inner side of the first connecting block is rotatably connected to the second connecting block through a rotating rod, one side of the second connecting block is fixedly connected to a movable plate, the outer surface of the movable plate is provided with an air inlet, a clamping block is fixedly connected to the edge of the outer surface of the movable plate, both ends of the inner side of the movable plate are fixedly connected to a sliding rod, the inner side of the sliding rod is slidably connected to a first fixed frame, and the interior of the first fixed frame is fixedly connected to a filter screen.

[0010] A further improvement of the technical solution of the present utility model is that the feeding assembly includes a driving motor, the lower surface of the driving motor is fixedly mounted on one side of the inner bottom wall of the mounting frame, the output end of the driving motor is fixedly connected to a conveying shaft, the outer surface of the conveying shaft is rotatably connected to an outer cylinder, and the upper part of the outer surface of the outer cylinder is fixedly connected to a storage cylinder.

[0011] A further improvement of the technical solution of the present utility model is that the fixing assembly includes a sphere, the outer side of the outer surface of the sphere is clamped to the inside of the slot, the inner side of the outer surface of the sphere is fixedly connected to a first spring, and one end of the first spring is fixedly connected to a limiting block.

[0012] A further improvement of the technical solution of the present utility model is that the driving component includes a shell, one side of the shell is fixedly connected to the other side of the outer surface of the combustion chamber, a servo motor is fixedly installed inside the shell, the output end of the servo motor is fixedly connected to a gear, the outer surface of the gear is fixedly connected to a gear ring, and the inner side of the gear ring is fixedly connected to a support plate.

[0013] A further improvement of the technical solution of the present utility model is that the cleaning component includes a force-bearing plate, the upper surface of the force-bearing plate is fixedly connected to the lower surface of the support plate, one side of the force-bearing plate is fixedly connected to a telescopic rod, one end of the telescopic rod is fixedly connected to a cleaning plate, and one side of the cleaning plate is fixedly connected to a second spring near the periphery of the telescopic rod.

[0014] A further improvement of the technical solution of the present utility model is that: the upper surface of the gear ring is rotatably connected to a positioning ring, and the outer surface of the positioning ring is fixedly connected to the inner wall of the combustion chamber.

[0015] A further improvement of the technical solution of the present invention is that an ash outlet is provided on the lower surface of the combustion chamber, and an ash discharge assembly is fixedly connected to the lower surface of the combustion chamber at the periphery of the ash outlet.

[0016] A further improvement of the technical solution of the present utility model is that the ash discharge assembly includes an extension tube, the upper surface of the extension tube is fixedly connected to the lower surface of the combustion chamber at the periphery of the ash outlet, the inner wall of the extension tube is fixedly connected to a second fixed frame, and the interior of the second fixed frame is fixedly connected to a blocking net.

[0017] A further improvement of the technical solution of the present invention is that a hot air blower is fixedly installed on the other side of the inner bottom wall of the mounting frame, and the output end of the hot air blower is respectively connected to the combustion chamber and the heat converter.

[0018] A further improvement of the technical solution of the present utility model is that: the edges of the mounting frame and the lower surface of the combustion chamber are fixedly connected with universal wheels, and the outer surface of the heat converter is fixedly connected with an air outlet pipe.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. Through the setting of the connecting assembly, the filter is arranged on the inner side of the movable plate to protect the air inlet, which can prevent dust and impurities in the air from entering the interior of the equipment, which can easily affect the service life of the internal components. The first connecting block and the second connecting block rotatably connect one side of the movable plate to the combustion chamber through the rotating rod. By rotating the movable plate to open, the first fixed frame can be slid out of the sliding rod to clean and replace the filter. The operation is convenient and can prevent the filter from being blocked and affecting the filtering effect.

[0021] 2. Through the provided driving assembly and cleaning assembly, the servo motor is started by an external power supply, and the gear ring is driven to rotate through the gear, so that the support plate drives the force plate to rotate, and then the cleaning plate is pushed to contact the inner wall of the combustion chamber through the second spring. The telescopic rod provides support force for the second spring, thereby rotating and cleaning the inner wall of the combustion chamber and the filter screen, avoiding excessive accumulation of dust on the inner wall of the combustion chamber, affecting the combustion rate, and reducing the number of times the filter screen needs to be disassembled, cleaned and replaced, thereby reducing the maintenance burden on the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the overall structure of the hot air blower to facilitate cleaning of the filter;

[0023] Figure 2Schematic diagram of the internal structure of the combustion chamber in the hot air blower to facilitate cleaning of the filter;

[0024] Figure 3 Schematic diagram of the installation structure of the filter in the hot air blower to facilitate cleaning of the filter;

[0025] Figure 4 Schematic diagram of the structure of the gear ring in the hot air blower to facilitate cleaning of the filter;

[0026] Figure 5 Schematic diagram of the structure of the conveying shaft in the hot air blower to facilitate cleaning of the filter.

[0027] In the figure: 1. Mounting frame; 2. Combustion chamber; 3. Heat converter; 4. First connecting block; 5. Second connecting block; 6. Movable plate; 7. Block; 8. Sliding rod; 9. First fixed frame; 10. Filter; 11. Drive motor; 12. Conveying shaft; 13. Outer cylinder; 14. Storage cylinder; 15. Sphere; 16. First spring; 17. Limit block; 18. Shell; 19. Servo motor; 20. Gear; 21. Gear ring; 22. Support plate; 23. Force plate; 24. Telescopic rod; 25. Cleaning plate; 26. Second spring; 27. Positioning ring; 28. Extension pipe; 29. Second fixed frame; 30. Screen; 31. Hot air blower; 32. Universal wheel; 33. Air outlet pipe. DETAILED DESCRIPTION

[0028] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise indicated.

[0029] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0030] In addition, numerous specific details are provided in the following specific examples to better illustrate the present application. Those skilled in the art will appreciate that the present application can be practiced without certain specific details. In some instances, methods, means, and components well known to those skilled in the art are not described in detail in order to highlight the main purpose of the present application.

[0031] Reference Figure 1-Figure 5 , this utility model provides three technical solutions:

[0032] Example 1:

[0033] A hot air blower for convenient filter cleaning includes a mounting frame 1, a feeding assembly fixedly mounted on one side of an inner bottom wall of the mounting frame 1, one end of the feeding assembly fixedly connected to a combustion chamber 2, a heat converter 3 fixedly mounted on the upper surface of the combustion chamber 2, a connecting assembly fixedly connected to one side of an outer surface of the combustion chamber 2, a card slot provided on the inner side of the connecting assembly, a fixing assembly being carded in the interior of the card slot, a driving assembly fixedly connected to the other side of the outer surface of the combustion chamber 2, and a cleaning assembly fixedly connected to the lower surface of the driving assembly;

[0034] The connecting assembly includes a first connecting block 4, the back of the first connecting block 4 is fixedly connected to one side of the outer surface of the combustion chamber 2, the inner side of the first connecting block 4 is rotatably connected to the second connecting block 5 by a rotating rod, and one side of the second connecting block 5 is fixedly connected to a movable plate 6, the outer surface of the movable plate 6 is provided with an air inlet, and the edge of the outer surface of the movable plate 6 is fixedly connected to a card block 7. Both ends of the inner side of the movable plate 6 are fixedly connected to a sliding rod 8, and the inner side of the sliding rod 8 is slidably connected to a first fixed frame 9. The interior of the first fixed frame 9 is fixedly connected to a filter screen 10. The filter screen 10 is arranged on the inner side of the movable plate 6 to protect the air inlet, which can prevent dust and impurities in the air from entering the interior of the equipment, which can easily affect the service life of the internal components. The first connecting block 4 and the second connecting block 5 make one side of the movable plate 6 rotatably connected to the combustion chamber 2 by the rotating rod. By rotating the movable plate 6 to open, the first fixed frame 9 can be slid out of the sliding rod 8, so that the filter screen 10 can be cleaned and replaced, which is easy to operate and can prevent the filter screen 10 from being blocked and affecting the filtering effect.

[0035] Example 2:

[0036] Based on Example 1:

[0037] The feeding assembly includes a driving motor 11, the lower surface of which is fixedly mounted on one side of the inner bottom wall of the mounting frame 1, and the output end of the driving motor 11 is fixedly connected to a conveying shaft 12, the outer surface of the conveying shaft 12 is rotatably connected to an outer cylinder 13, and the upper part of the outer surface of the outer cylinder 13 is fixedly connected to a storage cylinder 14. The combustible material is placed inside the storage cylinder 14, and falls into the inner part of the outer cylinder 13 under the action of gravity. Then, an external power supply is connected to start the driving motor 11, which drives the conveying shaft 12 to rotate, thereby conveying the combustible material to the inside of the combustion chamber 2, saving the worker's physical strength and ensuring the stability of the combustion material transportation.

[0038] The fixing assembly includes a sphere 15, the outer side of the outer surface of the sphere 15 is clamped to the inside of the slot, and the inner side of the outer surface of the sphere 15 is fixedly connected to a first spring 16. One end of the first spring 16 is fixedly connected to a limit block 17. After the movable plate 6 is closed, the block 7 is clamped to both sides of the limit block 17. The first spring 16 pushes the sphere 15 so that it is clamped to the inside of the slot opened on the block 7, thereby limiting the position of the block 7 and preventing the movable plate 6 from opening by itself.

[0039] The driving assembly includes a shell 18, one side of the shell 18 is fixedly connected to the other side of the outer surface of the combustion chamber 2, and a servo motor 19 is fixedly installed inside the shell 18. The output end of the servo motor 19 is fixedly connected to a gear 20, and the outer surface of the gear 20 is fixedly connected to a gear ring 21, and the inner side of the gear ring 21 is fixedly connected to a support plate 22. The servo motor 19 is started by an external power supply, and the gear ring 21 is driven to rotate through the gear 20, so that the support plate 22 drives the force plate 23 to rotate, so that the cleaning plate 25 can rotate and clean the inner wall of the combustion chamber 2.

[0040] The cleaning assembly includes a force-bearing plate 23, the upper surface of the force-bearing plate 23 is fixedly connected to the lower surface of the support plate 22, one side of the force-bearing plate 23 is fixedly connected to a telescopic rod 24, one end of the telescopic rod 24 is fixedly connected to a cleaning plate 25, one side of the cleaning plate 25 is fixedly connected to a second spring 26 near the outer periphery of the telescopic rod 24, and the cleaning plate 25 is pushed to contact the inner wall of the combustion chamber 2 by the second spring 26. The telescopic rod 24 provides supporting force for the second spring 26, thereby rotating and cleaning the inner wall of the combustion chamber 2 and the filter 10, avoiding excessive accumulation of dust on the inner wall of the combustion chamber 2, affecting the combustion rate, and reducing the number of times the filter 10 is disassembled, cleaned and replaced, thereby reducing the maintenance burden of the operator.

[0041] The upper surface of the gear ring 21 is rotatably connected to a positioning ring 27 , and the outer surface of the positioning ring 27 is fixedly connected to the inner wall of the combustion chamber 2 . The positioning ring 27 facilitates positioning and limiting the gear ring 21 .

[0042] An ash outlet is provided on the lower surface of the combustion chamber 2 , and an ash discharge assembly is fixedly connected to the lower surface of the combustion chamber 2 at the periphery of the ash outlet.

[0043] The ash discharge assembly includes an extension pipe 28, the upper surface of the extension pipe 28 is fixedly connected to the lower surface of the combustion chamber 2 at the periphery of the ash outlet, the inner wall of the extension pipe 28 is fixedly connected to a second fixed frame 29, and the interior of the second fixed frame 29 is fixedly connected to a blocking net 30. The blocking net 30 intercepts incompletely burned materials to ensure the maximum combustion rate of the materials.

[0044] A hot air blower 31 is fixedly installed on the other side of the inner bottom wall of the mounting frame 1. The output ends of the hot air blower 31 are respectively connected to the combustion chamber 2 and the heat converter 3. The hot air blower 31 is connected to the combustion chamber 2, and can send air into the combustion chamber 2 to provide necessary oxygen, promote complete combustion of the fuel, and improve combustion efficiency. The hot air blower 31 is connected to the heat converter 3. By sending hot air from the heat converter 3 into the working space, uniform heating can be achieved to avoid local overheating and uneven temperature.

[0045] Universal wheels 32 are fixedly connected to the edges of the lower surfaces of the mounting frame 1 and the combustion chamber 2, and an air outlet pipe 33 is fixedly connected to the outer surface of the heat converter 3. The universal wheels 32 facilitate the movement of the device.

[0046] Example 3:

[0047] Based on Example 1 and Example 2:

[0048] First, the filter 10 is arranged on the inner side of the movable plate 6 to protect the air inlet, and the first connecting block 4 and the second connecting block 5 rotate the side of the movable plate 6 to the combustion chamber 2 through the rotating rod. By rotating the movable plate 6 to open, the first fixed frame 9 can be slid out of the sliding rod 8, so that the filter 10 can be cleaned and replaced. Then, after the movable plate 6 is closed, the card block 7 is connected to the two sides of the limit block 17, and the first spring 16 pushes the ball 15 to make it connected to the inside of the card slot opened on the card block 7, limiting the position of the card block 7 to prevent the movable plate 6 from opening by itself. Secondly, The combustible material is placed inside the storage barrel 14 and falls into the outer barrel 13 under the action of gravity. The external power supply then starts the drive motor 11 to drive the conveying shaft 12 to rotate, thereby conveying the combustible material to the combustion chamber 2 for combustion. Finally, the external power supply starts the servo motor 19, which drives the gear ring 21 to rotate through the gear 20, so that the support plate 22 drives the force plate 23 to rotate, and then the cleaning plate 25 is pushed to contact the inner wall of the combustion chamber 2 through the second spring 26. The telescopic rod 24 provides support force for the second spring 26, thereby rotating and cleaning the inner wall of the combustion chamber 2 and the filter screen 10.

[0049] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0050] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hot air blower for facilitating cleaning of a filter screen, comprising a mounting frame (1), characterized in that: A feeding assembly is fixedly mounted on one side of the inner bottom wall of the mounting frame (1), one end of the feeding assembly is fixedly connected to the combustion chamber (2), a heat converter (3) is fixedly mounted on the upper surface of the combustion chamber (2), a connecting assembly is fixedly connected to one side of the outer surface of the combustion chamber (2), a card slot is provided on the inner side of the connecting assembly, a fixing assembly is clamped inside the card slot, a driving assembly is fixedly connected to the other side of the outer surface of the combustion chamber (2), and a cleaning assembly is fixedly connected to the lower surface of the driving assembly; The connecting assembly comprises a first connecting block (4), the back side of the first connecting block (4) is fixedly connected to one side of the outer surface of the combustion chamber (2), the inner side of the first connecting block (4) is rotatably connected to a second connecting block (5) via a rotating rod, one side of the second connecting block (5) is fixedly connected to a movable plate (6), an air inlet is provided on the outer surface of the movable plate (6), a clamping block (7) is fixedly connected to the edge of the outer surface of the movable plate (6), both ends of the inner side of the movable plate (6) are fixedly connected to a sliding rod (8), the inner side of the sliding rod (8) is slidably connected to a first fixed frame (9), and the interior of the first fixed frame (9) is fixedly connected to a filter screen (10).

2. The hot air blower for easy filter cleaning according to claim 1, characterized in that: The feeding assembly comprises a driving motor (11), the lower surface of the driving motor (11) is fixedly mounted on one side of the inner bottom wall of the mounting frame (1), the output end of the driving motor (11) is fixedly connected to a conveying shaft (12), the outer surface of the conveying shaft (12) is rotatably connected to an outer cylinder (13), and the upper part of the outer surface of the outer cylinder (13) is fixedly connected to a storage cylinder (14).

3. The hot air blower for easy filter cleaning according to claim 1, characterized in that: The fixing assembly comprises a sphere (15), the outer side of the outer surface of the sphere (15) is clamped in the interior of the clamping slot, the inner side of the outer surface of the sphere (15) is fixedly connected to a first spring (16), and one end of the first spring (16) is fixedly connected to a limiting block (17).

4. The hot air blower for easy filter cleaning according to claim 1, characterized in that: The driving assembly includes a shell (18), one side of the shell (18) is fixedly connected to the other side of the outer surface of the combustion chamber (2), a servo motor (19) is fixedly installed inside the shell (18), an output end of the servo motor (19) is fixedly connected to a gear (20), an outer surface of the gear (20) is fixedly connected to a gear ring (21), and an inner side of the gear ring (21) is fixedly connected to a support plate (22).

5. The hot air blower for easy filter cleaning according to claim 1, characterized in that: The cleaning assembly comprises a force-bearing plate (23), the upper surface of the force-bearing plate (23) is fixedly connected to the lower surface of the support plate (22), one side of the force-bearing plate (23) is fixedly connected to a telescopic rod (24), one end of the telescopic rod (24) is fixedly connected to a cleaning plate (25), and one side of the cleaning plate (25) is fixedly connected to a second spring (26) near the periphery of the telescopic rod (24).

6. The hot air blower for easy filter cleaning according to claim 4, characterized in that: The upper surface of the gear ring (21) is rotatably connected to a positioning ring (27), and the outer surface of the positioning ring (27) is fixedly connected to the inner wall of the combustion chamber (2).

7. The hot air blower for easy filter cleaning according to claim 1, characterized in that: An ash outlet is provided on the lower surface of the combustion chamber (2), and an ash discharge assembly is fixedly connected to the lower surface of the combustion chamber (2) at the periphery of the ash outlet.

8. The hot air blower for easy filter cleaning according to claim 7, characterized in that: The ash discharge assembly comprises an extension pipe (28), the upper surface of the extension pipe (28) being fixedly connected to the lower surface of the combustion chamber (2) and located at the periphery of the ash outlet, the inner wall of the extension pipe (28) being fixedly connected to a second fixed frame (29), and the interior of the second fixed frame (29) being fixedly connected to a blocking net (30).

9. The hot air blower for easy filter cleaning according to claim 1, characterized in that: A hot air blower (31) is fixedly mounted on the other side of the inner bottom wall of the mounting frame (1), and the output ends of the hot air blower (31) are respectively connected to the combustion chamber (2) and the heat converter (3).

10. The hot air blower for easy filter cleaning according to claim 1, characterized in that: Universal wheels (32) are fixedly connected to the edges of the lower surfaces of the mounting frame (1) and the combustion chamber (2), and an air outlet pipe (33) is fixedly connected to the outer surface of the heat converter (3).

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