Air duct type electric heater easy to connect and use

Abstract

The utility model relates to an air duct type electric heater easy to connect and use, which belongs to the technical field of air duct type electric heaters, and comprises a heating pipeline, a ventilating pipeline, an electric heater main body, a fixing bolt, a filter cartridge placing plate, a cleaning plate and a dust collecting cloth bag, and the flange edge and the connecting slot can be connected through a fixing bolt. The dust removal device is provided with the barrel-shaped filter screen, dust filtration treatment can be conducted on air in the air duct, the cleaning plate with the cleaning brush is arranged for the barrel-shaped filter screen, the reciprocating driving structure is arranged for the cleaning plate, dust on the outer wall of the barrel-shaped filter screen can be brushed and cleaned, and the air inlet structure and the air exhaust structure are arranged. And dust on the surface of the cylindrical filter screen can be cleaned and collected through airflow, so that the cylindrical filter screen can be uniformly taken out for treatment after being cleaned for multiple times, and compared with a traditional dust filtering structure, the ventilation effect can be guaranteed without frequent disassembly and cleaning.

Description

Technical Field

[0001] This utility model relates to the field of duct-type electric heater technology, and in particular to a duct-type electric heater that is easy to connect and use. Background Technology

[0002] A duct-type electric heater is a device that uses electricity to heat air. It is usually installed in a ventilation duct. It heats the air directly by passing electricity through internal electric heating elements (such as heating tubes or heating wires). A fan drives the air to flow, so that the cold air passes evenly through the heating elements and is then heated and delivered to the target area.

[0003] A search revealed a Chinese patent with publication number CN202223386603.9, which discloses a duct-type electric heater. This heater incorporates an auxiliary device where the dustproof mesh is connected and installed using a magnetic assembly consisting of a magnetic plate and a magnetic plate. This eliminates the need for complicated installation and removal. The dustproof assembly can be replaced without turning a knob to move the circular plate away from the annular pressure plate, making replacement convenient and effective. Furthermore, the included installation device secures the flange on the duct surface to the side-mounted anti-collision bracket, thus connecting the duct-type electric heater housing to the duct.

[0004] The above-mentioned technical solution has the following drawbacks. Although the dust filter screen can be easily positioned and removed for replacement using a magnetic structure, it is inconvenient to disassemble and replace it when the filter screen has accumulated a lot of dust during actual use. To facilitate cleaning of the dust filter structure, prevent dust from adhering to the heating element and affecting heat exchange efficiency, and improve service life, a duct-type electric heater that is easy to connect and use is proposed. The heating pipe has a connection slot on the flange side corresponding to the ventilation pipe, which facilitates temporary connection and alignment of bolt holes, making it easy to connect by bolts. A cylindrical filter screen is provided to filter dust from the air in the duct. A cleaning plate with a cleaning brush is provided for the cylindrical filter screen, and a reciprocating drive structure is provided for the cleaning plate to brush and clean the dust on the outer wall of the cylindrical filter screen. An air inlet structure and an air outlet structure are provided, which can clean and collect dust on the surface of the cylindrical filter screen through airflow, making it easy to remove and dispose of after multiple cleanings. Compared with the traditional dust filter structure, ventilation effect can be guaranteed without frequent disassembly and cleaning.

[0005] In view of this, this work improves and solves the above problems. Through dedicated research and application of theoretical principles, a technical solution with a reasonable design that can effectively improve the above defects has finally been proposed.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the general background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] This utility model provides an easy-to-connect and use duct-type electric heater, which solves the problems mentioned in the background. It is equipped with a connection slot, which facilitates temporary connection and alignment of bolt holes, making the connection more convenient. It can brush and clean the dust on the outer wall of the cylindrical filter screen, and can clean and collect dust on the surface of the cylindrical filter screen through airflow, so that it can be removed and disposed of after multiple cleanings. Compared with traditional dust filter structures, it can ensure ventilation effect without frequent disassembly and cleaning.

[0008] The present invention provides the following solution to the above-mentioned technical problems: A duct-type electric heater that is easy to connect and use includes a heating pipe, a ventilation pipe, an electric heater body, fixing bolts, a filter cartridge mounting plate, a cleaning plate, and a dust collection bag. The ventilation pipe is provided with a flange, and the heating pipe is provided with a connecting slot corresponding to the flange. The flange and the connecting slot can be connected by fixing bolts. The electric heater body is installed at the heating pipe. The heating pipe is provided with a heating chamber, a dust filtering chamber, and a dust collection chamber. An air intake equipment box is installed on the heating pipe. An air intake pump and a blowpipe are installed in the air intake equipment box. The air intake pump and the blowpipe are connected. The blowpipe is uniformly and fixedly connected to the air nozzles. The filter cartridge mounting plate is uniformly and fixedly installed with filter screens. The filter cartridge mounting plate is snapped into the dust filtration chamber. The heating pipe is equipped with a brake stepper motor. The drive end of the brake stepper motor is fixedly connected to a reciprocating screw. The reciprocating screw is threaded with a screw nut. The screw nut is fixedly connected to a load-bearing slider. The load-bearing slider is fixedly connected to a cleaning plate. The cleaning plate is uniformly provided with cleaning holes. Cleaning brushes are uniformly and fixedly installed on the inner wall of the cleaning holes. The cleaning brushes are in contact with the filter screens. The dust collection bag is snapped into the dust collection chamber. An exhaust hopper is installed in the dust collection chamber. The exhaust hopper is connected to an exhaust pump.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, the inner wall of the connecting slot is provided with a sealing gasket, and the flange edge and the connecting slot are evenly provided with bolt holes corresponding to the fixing bolts. The sealing gasket can seal the connection between the flange edge and the connecting slot, and the flange edge and the connecting slot can be connected by bolts.

[0011] Furthermore, the electric heater body is provided with a heating element, which is placed inside the heating chamber. The connection between the heating chamber and the heating element is sealed, and the heating element of the electric heater body can heat the inside of the heating chamber.

[0012] Furthermore, multiple sets of air jet nozzles are evenly arranged corresponding to the filter screen cylinder, and these multiple sets of air jet nozzles can perform dust removal treatment on the filter screen cylinder by blowing air.

[0013] Furthermore, the heating pipe is provided with a slot corresponding to the filter cartridge mounting plate. The filter cartridge mounting plate can be inserted into the slot of the heating pipe for positioning, and the filter screen of the filter cartridge mounting plate can filter dust from the incoming air.

[0014] Furthermore, the reciprocating screw is rotatably connected to the inner wall of the dust filter chamber, and a limit rod is fixedly installed in the dust filter chamber. The load-bearing slider has a sliding hole corresponding to the limit rod, and the inner wall of the sliding hole is slidably connected to the limit rod. The dust filter chamber is rotatably connected to the reciprocating screw through a sealed bearing. The reciprocating screw can rotate stably on the inner wall of the dust filter chamber, so that the load-bearing slider can slide stably on the outer wall of the limit rod. The limit rod can stably limit the load-bearing slider.

[0015] Furthermore, the dust collection bag is equipped with a rectangular frame, and the dust collection chamber is provided with a slot corresponding to the rectangular frame. The dust collection bag can be stably inserted into the slot of the dust collection chamber, and the dust collection bag can collect and process the dust under cleaning.

[0016] Furthermore, the heating pipe is equipped with a sealed maintenance door corresponding to the dust collection bag and filter cartridge mounting plate. By opening the sealed maintenance door, the filter cartridge and dust collection bag can be removed and replaced.

[0017] This utility model provides an easy-to-connect and use duct-type electric heater, which has the following advantages:

[0018] 1. The connecting slots on both sides of the heating pipe can be temporarily snapped into the flanges of the ventilation pipes on both sides and can be aligned with the bolt holes, so as to facilitate connection by fixing bolts. A sealing gasket is provided at the gap between the flange and the connecting slot to seal the connection.

[0019] 2. The dust filtration chamber is equipped with a filter screen to filter the incoming air. Some of the filtered dust adheres to the outer wall of the filter screen, while some falls into the dust collection bag in the dust collection chamber under gravity for collection. The filter screen can prevent dust from adhering to the heating element and affecting the heat exchange effect and service life.

[0020] 3. Equipped with a cylindrical filter screen, it can filter dust from the air in the duct. The cylindrical filter screen is equipped with a cleaning plate with a cleaning brush and a reciprocating drive structure, which can brush and clean the dust on the outer wall of the cylindrical filter screen. It is equipped with an air inlet structure and an air outlet structure, which can clean and collect dust on the surface of the cylindrical filter screen through airflow, so that it can be easily removed and disposed of after multiple cleanings. Compared with traditional dust filtration structures, it can ensure ventilation effect without frequent disassembly and cleaning.

[0021] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0023] Figure 1 A schematic diagram of a duct-type electric heater that is easy to connect and use is provided in one embodiment of this utility model;

[0024] Figure 2 A front view of a duct-type electric heater that is easy to connect and use, provided in an embodiment of this utility model;

[0025] Figure 3 A top-view structural diagram of an easy-to-connect and use duct-type electric heater according to an embodiment of this utility model;

[0026] Figure 4 This is a schematic diagram of the heating chamber in a duct-type electric heater that is easy to connect and use, according to an embodiment of the present invention.

[0027] Figure 5 This is a schematic diagram of the structure of the electric drive mechanism for the cleaning plate in a duct-type electric heater that is easy to connect and use, according to an embodiment of the present invention.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Heating pipe; 2. Ventilation pipe; 3. Electric heater body; 4. Flange edge; 5. Connecting slot; 6. Fixing bolt; 7. Sealing gasket; 8. Heating element; 9. Heating chamber; 10. Dust filter chamber; 11. Dust collection chamber; 12. Air intake equipment box; 13. Air intake pump; 14. Blowpipe; 15. Air nozzle; 16. Filter cartridge mounting plate; 17. Brake stepper motor; 18. Reciprocating screw; 19. Screw nut; 20. Load-bearing slider; 21. Limit rod; 22. Cleaning plate; 23. Cleaning brush; 24. Dust collection bag; 25. Exhaust hopper; 26. Exhaust pump; 27. Sealed inspection door; 28. Filter screen cylinder. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-5 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0031] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] like Figure 1-5As shown, an easy-to-connect and use duct-type electric heater includes a heating pipe 1, a ventilation duct 2, an electric heater body 3, fixing bolts 6, a filter cartridge mounting plate 16, a cleaning plate 22, and a dust collection bag 24. The ventilation duct 2 is provided with a flange 4, and the heating pipe 1 is provided with a connecting slot 5 corresponding to the flange 4. The flange 4 and the connecting slot 5 can be connected by the fixing bolts 6. The electric heater body 3 is installed at the heating pipe 1. The heating pipe 1 is provided with a heating chamber 9, a dust filtering chamber 10, and a dust collection chamber 11. An air intake equipment box 12 is installed on the heating pipe 1. An air intake pump 13 and a blowpipe 14 are installed in the air intake equipment box 12. The air intake pump 13 and the blowpipe 14 are connected and the blowpipe 14 is uniformly and fixedly connected. The system includes a jet nozzle 15, a filter cartridge mounting plate 16 on which filter screens 28 are evenly fixedly installed, a filter cartridge mounting plate 16 inserted into a dust filtration chamber 10, a brake stepper motor 17 installed on a heating pipe 1, the drive end of the brake stepper motor 17 being fixedly connected to a reciprocating screw 18, a screw nut 19 being threaded onto the reciprocating screw 18, a load-bearing slider 20 being fixedly connected to the screw nut 19, a cleaning plate 22 being fixedly connected to the load-bearing slider 20, a cleaning plate 22 having evenly spaced cleaning holes, a cleaning brush 23 being evenly fixedly installed on the inner wall of the cleaning holes, the cleaning brush 23 being in contact with the filter screen 28, a dust collection bag 24 inserted into a dust collection chamber 11, an exhaust hopper 25 installed in the dust collection chamber 11, and an exhaust pump 26 connected to the exhaust hopper 25.

[0034] Preferably, the inner wall of the connecting slot 5 is provided with a sealing gasket 7, and the flange edge 4 and the connecting slot 5 are evenly provided with bolt holes corresponding to the fixing bolts 6. The sealing gasket 7 can seal the connection between the flange edge 4 and the connecting slot 5, and the flange edge 4 and the connecting slot 5 can be connected by bolts.

[0035] Preferably, the electric heater body 3 is provided with a heating element 8, which is placed inside the heating chamber 9. The connection between the heating chamber 9 and the heating element 8 is sealed. The heating element 8 of the electric heater body 3 can heat the heating chamber 9.

[0036] Preferably, multiple sets of air nozzles 15 are evenly arranged corresponding to the filter cylinder 28, and the multiple sets of air nozzles 15 can perform dust removal treatment on the filter cylinder 28 by blowing air.

[0037] Preferably, the heating pipe 1 is provided with a slot corresponding to the filter cartridge mounting plate 16, and the filter cartridge mounting plate 16 can be inserted into the slot of the heating pipe 1 for positioning, and the filter screen 28 of the filter cartridge mounting plate 16 can filter dust from the incoming air.

[0038] Preferably, the reciprocating screw 18 is rotatably connected to the inner wall of the dust filter chamber 10, and the dust filter chamber 10 is fixedly installed with a limiting rod 21. The load-bearing slider 20 has a sliding hole corresponding to the limiting rod 21, and the inner wall of the sliding hole is slidably connected to the limiting rod 21. The dust filter chamber 10 is rotatably connected to the reciprocating screw 18 through a sealed bearing. The reciprocating screw 18 can rotate stably on the inner wall of the dust filter chamber 10, so that the load-bearing slider 20 can slide stably on the outer wall of the limiting rod 21. The limiting rod 21 can stably limit the load-bearing slider 20.

[0039] Preferably, the dust collection bag 24 is equipped with a rectangular frame, and the dust collection chamber 11 is provided with a slot corresponding to the rectangular frame. The dust collection bag 24 can be stably inserted into the slot of the dust collection chamber 11, so that the dust collection bag 24 can collect and process the dust under cleaning.

[0040] Preferably, the heating pipe 1 is provided with a sealed inspection door 27 corresponding to the dust collection bag 24 and the filter cartridge mounting plate 16. The filter cartridge 28 and the dust collection bag 24 can be removed and replaced by opening the sealed inspection door 27.

[0041] The specific working principle and usage method of this utility model are as follows: The connecting slots 5 on both sides of the heating pipe 1 can be temporarily engaged with the flange edges 4 of the ventilation pipes 2 on both sides and can be aligned with the bolt holes, thereby facilitating connection by fixing bolts 6. A sealing gasket 7 is provided at the gap between the flange edge 4 and the connecting slot 5 to seal the connection. Air enters the heating pipe 1 through the ventilation pipe 2. A filter screen cylinder 28 is provided in the dust filter chamber 10 to filter the incoming air. Some of the filtered dust adheres to the outer wall of the filter screen cylinder 28, and some falls into the dust collection bag 24 of the dust collection chamber 11 under the action of gravity for collection. Air passes through the heating chamber 9 of the heating pipe 1, and the heating element 8 of the electric heater body 3 can heat the air. The filter screen cylinder 28 can prevent dust from adhering to the heating element 8, affecting the heat exchange effect and service life. After a period of use, the ventilation can be temporarily closed. Ventilation of air duct 2 involves starting the intake air pump 13, exhaust air pump 26, and brake stepper motor 17. The intake air pump 13 introduces external air into the blowpipe 14 and sprays it out through the nozzle 15, thereby blowing away the dust adhering to the filter cylinder 28. The brake stepper motor 17 rotates the reciprocating screw 18, which drives the load-bearing slider 20 to rise and fall through the screw nut 19. The limit rod 21 limits the load-bearing slider 20, allowing the cleaning plate 22 to move vertically up and down in contact with the filter cylinder 28. The cleaning brush 23 then cleans the dust on the surface of the filter cylinder 28, effectively improving the cleaning effect. The exhaust air pump 26 extracts air from the dust collection chamber 11, allowing the cleaned dust to be collected in the dust collection bag 24. After multiple cleanings, the sealed inspection door 27 can be opened to remove the dust collection bag 24 for unified disposal.

[0042] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A duct-type electric heater that is easy to connect and use, comprising a heating pipe (1), a ventilation pipe (2), an electric heater body (3), fixing bolts (6), a filter cartridge mounting plate (16), a cleaning plate (22), and a dust collection bag (24), characterized in that: The ventilation duct (2) is provided with a flange (4), and the heating duct (1) is provided with a connecting slot (5) corresponding to the flange (4). The flange (4) and the connecting slot (5) can be connected by fixing bolts (6). The electric heater body (3) is installed at the heating duct (1). The heating duct (1) is provided with a heating chamber (9), a dust filter chamber (10), and a dust collection chamber (11). The heating duct (1) is equipped with an air intake device box (12). An air pump (13) and a blowpipe (14) are installed inside the housing (12). The air pump (13) and the blowpipe (14) are connected. The blowpipe (14) is uniformly and fixedly connected to air nozzles (15). Filter cylinders (28) are uniformly and fixedly installed on the filter cylinder mounting plate (16). The filter cylinder mounting plate (16) is inserted into the dust filter chamber (10). A brake stepper motor (17) is installed on the heating pipe (1). The drive end of the brake stepper motor (17) is connected to the reciprocating wire. A screw (18) is fixedly connected to a reciprocating screw (18), which is threaded with a screw nut (19). A load-bearing slider (20) is fixedly connected to the screw nut (19). The load-bearing slider (20) is fixedly connected to a cleaning plate (22). The cleaning plate (22) has evenly spaced cleaning holes. Cleaning brushes (23) are evenly fixedly installed on the inner wall of each cleaning hole. The cleaning brushes (23) are attached to the filter cylinder (28). The dust collection bag (24) is inserted into the dust collection chamber (11). An exhaust hopper (25) is installed inside the dust collection chamber (11). The exhaust hopper (25) is connected to an exhaust air pump (26). The reciprocating screw (18) is rotatably connected to the inner wall of the dust filter chamber (10). The dust filter chamber (10) is fixedly installed with a limit rod (21). The load-bearing slider (20) has a sliding hole corresponding to the limit rod (21). The inner wall of the sliding hole is slidably connected to the limit rod (21). The dust filter chamber (10) is rotatably connected to the reciprocating screw (18) through a sealed bearing.

2. The duct-type electric heater that is easy to connect and use according to claim 1, characterized in that, The inner wall of the connecting slot (5) is provided with a sealing gasket (7), and the flange edge (4) and the connecting slot (5) are evenly provided with bolt holes corresponding to the fixing bolts (6).

3. The duct-type electric heater that is easy to connect and use according to claim 1, characterized in that, The electric heater body (3) is provided with a heating element (8), which is placed in the heating chamber (9). The connection between the heating chamber (9) and the heating element (8) is sealed.

4. The duct-type electric heater that is easy to connect and use according to claim 1, characterized in that, The jet nozzle (15) is evenly arranged in multiple sets corresponding to the filter cylinder (28).

5. The duct-type electric heater that is easy to connect and use according to claim 1, characterized in that, The heating pipe (1) is provided with a slot corresponding to the filter cartridge mounting plate (16).

6. The duct-type electric heater that is easy to connect and use according to claim 1, characterized in that, The dust collection bag (24) is equipped with a rectangular frame, and the dust collection chamber (11) is provided with a slot corresponding to the rectangular frame.

7. The duct-type electric heater that is easy to connect and use according to claim 1, characterized in that, The heating pipe (1) is equipped with a sealed inspection door (27) corresponding to the dust collection bag (24) and the filter cartridge mounting plate (16).

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