Foldable electric heater

Abstract

The utility model discloses a foldable electric heater, which belongs to the field of electric heaters and is characterized in that a main frame is connected with a foldable turnover frame through a hinge device, the separated ends of the foldable turnover frame and the main frame are respectively provided with a fixing block and a fixing frame, the side wall of the fixing frame is provided with a notch, a fastening bolt is inserted into the fixing block, and the fixing block penetrates through the notch and is sleeved with an abutting nut; the folding turnover frame and the main frame are fixed; the outer end of the folding overturning frame is connected with an isolation cover through a mounting frame, and a draught fan is arranged in the isolation cover. The heating pipe is located in the middle of the inner cavity of the main frame to optimize heating efficiency. The separation nets are arranged at the openings at the two ends to prevent dust and foreign matters and ensure the equipment to be clean and safe. And the fan is aligned with the folding and overturning frame, so that a multi-state blowing function is realized. Separation nets are installed at openings in the two ends to prevent dust and foreign matter from entering. A filter screen is arranged at the inner end of the folding turnover frame to filter air impurities. The anti-skidding gasket and the buffering gasket are installed at proper positions to prevent skidding and reduce noise.

Description

Technical Field

[0001] The utility model relates to the field of electric heaters, in particular to a foldable electric heater. Background Art

[0002] An electric heater is a heating device that converts electrical energy into heat. It uses a built-in heating element to convert electrical energy into heat, which is then dissipated into the room through a fan or natural convection, thereby raising the indoor temperature. Electric heaters offer instant heating, are easy to move, and are simple to install, making them suitable for use in homes, offices, dormitories, and other places. Common types of electric heaters include oil-filled radiators, ceramic heaters, quartz tube heaters, and electric heating film heaters. Exercise caution when using these heaters and avoid leaving them unattended for extended periods to prevent fires and other safety hazards.

[0003] Due to their large size, electric heaters, especially when equipped with fans and other components, take up more space. This can be a practical disadvantage, especially in living environments with limited space. The larger size means more floor space is required to accommodate the heater, which can restrict furniture placement and room layouts. Furthermore, larger units are more difficult to transport and store, especially when the heater needs to be moved frequently. Utility Model Content

[0004] The main purpose of the present invention is to provide a foldable electric heater, which can effectively solve the problems raised in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A foldable electric heater comprises a main frame, a heating tube and an isolation net. The heating tube is installed in the middle section of the inner cavity of the main frame, and two isolation nets are installed at the openings at both ends of the main frame. The electric heating operation is achieved by heating through the heating tube.

[0007] The main frame is connected to the folding and flipping frame through a hinge device. The folding and flipping frame and the main frame are respectively provided with a fixing block and a fixing frame at the separation end. The side wall of the fixing frame is provided with a notch. A fastening bolt is inserted into the fixing block, and a fastening nut is inserted through the notch to achieve fixation between the folding and flipping frame and the main frame.

[0008] The outer end of the folding and flipping frame is connected to an isolation cover through a mounting frame, and a fan is provided inside the isolation cover, and the fan is aimed at the folding and flipping frame to realize a blowing operation;

[0009] When the fan is flipped to the side of the main frame, it is in the cold air blowing state, the heating tube is used alone as the electric heating state, and when the fan is aimed at the heating tube, it is in the hot air blowing state.

[0010] In an optional solution of the present invention, the main frame is a square frame, the cross section of the folding and flipping frame is designed to be an isosceles trapezoid, and a filter is installed at the inner end of the folding and flipping frame;

[0011] In an optional solution of the present invention, the four corner openings of the mounting frame are aligned with the screw holes on the folding and flipping frame, and bolts are inserted to fix the mounting frame to the folding and flipping frame. The isolation cover is fixed to the mounting frame by bolts, and the fan motor is fixed to the isolation cover;

[0012] An optional solution of the present invention is that the fixing frame is welded and fixed to the main frame, the folding and flipping frame is welded and fixed to the fixing block, the screw hole on the fixing block is adapted to the fastening bolt, one end of the fastening bolt is provided with a rotating handle, and the fastening bolt is adapted to the thread of the fastening nut, the surface of the fastening nut is provided with a rubber anti-slip gasket, and it is pressed against the fixing frame;

[0013] In an optional solution of the present invention, the interface between the main frame and the folding and flipping frame is provided with anti-slip pads and buffer pads, and support frames are provided at both ends of the heating tube, and the support frames are connected to the main frame by bolts;

[0014] According to an optional solution of the present invention, the isolation net is fixed to the main frame by bolts, and the isolation net is composed of crisscrossing net rods and a support frame, and the net rods are welded to the support frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The heating tubes are cleverly designed and installed midway within the main frame's inner cavity, ensuring maximum heating efficiency. Carefully designed and effectively placed isolation screens at both end openings of the main frame prevent dust and foreign matter from entering the heating tubes, ensuring the heater's cleanliness and safety. The fan is precisely aligned with the folding and flipping frame, enabling a blower operation and further versatility, including cooling, heating, and hot air.

[0017] To further enhance the heater's performance and safety, two isolation screens are installed at each end of the main frame, effectively preventing the ingress of dust and foreign matter. A filter is also installed at the inner end of the folding frame, effectively filtering out dust and impurities from the air, thereby ensuring air cleanliness. Furthermore, anti-slip pads and cushioning pads are designed and installed in appropriate locations to prevent the heater from sliding during use and reduce noise and damage caused by collisions.

[0018] To further enhance the heater's stability and durability, the mounting bracket is welded to the main frame, and the folding frame is also welded to the fixing block. A handle is provided on one end of the fastening bolt for easy operation. A rubber non-slip pad is specially designed on the surface of the fastening nut to increase friction and prevent loosening, ensuring the heater's stability and safety during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a diagram showing the first usage state of the main frame and the folding and flipping frame of the utility model;

[0020] Figure 2 This is a diagram showing the second usage state of the main frame and the folding and flipping frame of the utility model;

[0021] Figure 3 This is a folding display diagram of the main frame and folding flip frame of the utility model;

[0022] Figure 4 This is a side view of the main frame and folding flip frame of the utility model;

[0023] Figure 5 for Figure 1 Enlarged schematic diagram of point A in the middle.

[0024] In the figure: 1. Main frame; 2. Heating tube; 3. Isolation net; 4. Folding and flipping frame; 5. Hinge device; 6. Fixing frame; 7. Notch; 8. Fixing block; 9. Fastening bolt; 10. Tightening nut; 11. Mounting frame; 12. Fan; 13. Isolation cover. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1 - Figure 5 As shown, a foldable electric heater with a unique design and functionality comprises a main frame 1, a heating tube 2, and a shielding net 3. The heating tube 2 is cleverly mounted midway within the main frame 1, ensuring efficient heating. Two shielding nets 3 are installed at the two end openings of the main frame 1, effectively preventing the ingress of dust and foreign matter while ensuring the safe use of the heating tube 2. Through the heating of the heating tube 2, users can easily achieve electric heating and enjoy a warm environment.

[0027] The main frame 1 is connected to the foldable and flip frame 4 via a hinge assembly 5. The hinge assembly 5 allows for easy separation of the foldable and flip frame 4 from the main frame 1. A fixing block 8 and a fixing bracket 6 are located at the separated ends of the foldable and flip frame 4 and main frame 1, respectively. These two components ensure the heater's stability and safety. The sidewalls of the fixing bracket 6 feature a notch 7, while the fixing block 8 is fitted with a fastening bolt 9, which is then fitted with a locking nut 10 through the notch. This ingenious design ensures a secure connection between the foldable and flip frame 4 and the main frame 1.

[0028] The outer end of the folding and flipping frame 4 is connected to an isolation cover 13 through a mounting frame 11, and a fan 12 is provided inside the cover of the isolation cover 13. The fan 12 is aligned with the folding and flipping frame 4 and realizes the blowing operation, making the functions of the electric heater more diverse. When the fan 12 is flipped to the side of the main frame 1, the electric heater is in a cold air blowing state, and the user can enjoy a cool breeze. When the heating tube 2 is used alone, the electric heater is in an electric heating state, providing warmth to the user. When the fan 12 is aligned with the heating tube 2 to blow air, the electric heater is in a hot air blowing state, and the user can enjoy a warm breeze.

[0029] The main frame 1 adopts a square frame design, which is structurally stable and aesthetically pleasing. The cross-section of the folding and flipping frame 4 is an isosceles trapezoidal design, which is not only aesthetically pleasing but also increases the stability of the electric heater. A filter is also installed at the inner end of the folding and flipping frame 4, effectively filtering out dust and impurities in the air, ensuring clean air.

[0030] The four corner openings of the mounting frame 11 are aligned with the screw holes on the folding and flipping frame 4, and the mounting frame 11 is fixed to the folding and flipping frame 4 by inserting bolts. The isolation cover 13 is fixed to the mounting frame 11 by bolts, and the motor of the fan 12 is fixed to the isolation cover 13, ensuring the stable operation of the fan 12.

[0031] The fixing frame 6 is fixed to the main frame 1 by welding, ensuring the firmness of the structure. The folding flip frame 4 is also fixed to the fixing block 8 by welding, further enhancing the stability of the electric heater. The fixing block 8 is provided with a screw hole, which is adapted to the fastening bolt 9. One end of the fastening bolt 9 is provided with a rotating handle for user convenience. The fastening bolt 9 is adapted to the thread of the fastening nut 10, making the fixation more secure. The surface of the fastening nut 10 is provided with a rubber anti-slip gasket, which presses it against the fixing frame 6, increasing friction and preventing loosening.

[0032] The interface between the main frame 1 and the folding and flipping frame 4 is equipped with anti-slip pads and cushioning pads. These pads not only prevent the heater from sliding during use but also reduce noise and damage caused by collisions. Support brackets are installed at both ends of the heating tube 2 and are connected to the main frame 1 via bolts, ensuring the stability and safety of the heating tube 2.

[0033] The isolation net 3 is bolted to the main frame 1. It is composed of crisscrossing rods and a support frame. The rods are welded to the support frame, making the isolation net 3 both strong and durable. It effectively prevents dust and foreign matter from entering the heating tube 2, ensuring the cleanliness and safe use of the electric heater.

[0034] Instructions: Ensure the heater is placed on a flat, stable surface. Check the power outlet and ensure the heater's power cord is properly connected. Plug the heater's power cord into the power outlet. Turn on the heater's power switch to start the heater.

[0035] Select electric heating mode or air blowing mode as needed. Use heating tube 2 directly for heating and enjoy a warm environment. Start fan 12 and select cold air blowing or hot air blowing mode based on the position of fan 12. Adjust the angle and position of folding and flipping frame 4 as needed to achieve the optimal heating or air blowing effect. Use fixing block 8 and fastening bolts 9 to adjust and secure the position of folding and flipping frame 4.

[0036] Avoid leaving the heater unattended for extended periods to prevent accidents. Ensure there are no flammable or explosive items around the heater. Clean the isolation screen 3 and filter regularly to keep the device clean.

[0037] Folding process: Turn off the power switch of the electric heater. Disconnect the power plug and make sure that the electric heater stops working completely. Loosen the fastening bolts 9 so that the folding flip frame 4 can move freely. Remove the connection between the fixing block 8 and the fixing frame 6. Fold the folding flip frame 4 toward the main frame 1 so that it is parallel to or overlaps with the main frame 1. Make sure that the inner end of the folding flip frame 4 is aligned with the inner cavity of the main frame 1. Reinsert the fixing block 8 of the folding flip frame 4 into the screw hole of the fixing frame 6. Tighten the fastening bolts 9 to ensure that the folding flip frame 4 is firmly fixed to the main frame 1. Make sure that there is no dust and debris on the surface and inside of the electric heater. Place the electric heater in a dry and ventilated environment to avoid damage to the equipment due to moisture.

[0038] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used solely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. However, the terms "comprise," "include," or any other variations thereof are intended to encompass 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. In the absence of further limitations, the phrase "comprises a..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the elements.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A foldable electric heater, comprising a main frame (1), a heating tube (2) and an isolation net (3), wherein the heating tube (2) is mounted in the middle section of the inner cavity of the main frame (1), and two isolation nets (3) are mounted at the openings at both ends of the main frame (1), and electric heating operation is achieved by heating through the heating tube (2), characterized in that: The main frame (1) is connected to the folding and flipping frame (4) via a hinge device (5); a fixing block (8) and a fixing frame (6) are respectively provided at the separation ends of the folding and flipping frame (4) and the main frame (1); a notch (7) is provided on the side wall of the fixing frame (6); a fastening bolt (9) is inserted into the fixing block (8), and a fastening nut (10) is provided through the notch (7) to achieve fixation between the folding and flipping frame (4) and the main frame (1); The outer end of the folding and flipping frame (4) is connected to an isolation cover (13) via a mounting frame (11), and a fan (12) is provided inside the isolation cover (13), and the fan (12) is aligned with the folding and flipping frame (4) to realize a blowing operation; When the fan (12) is turned to the side of the main frame (1), it is in a cold air blowing state, the heating tube (2) is used alone in an electric heating state, and when the fan (12) is aimed at the heating tube (2) to blow air, it is in a hot air blowing state.

2. A foldable electric heater according to claim 1, characterized in that: The main frame (1) is a square frame, the cross section of the folding and flipping frame (4) is designed to be an isosceles trapezoid, and a filter screen is installed at the inner end of the folding and flipping frame (4).

3. A foldable electric heater according to claim 2, characterized in that: The four corner openings of the mounting frame (11) are aligned with the screw holes on the folding and flipping frame (4), and bolts are inserted to fix the mounting frame (11) to the folding and flipping frame (4). The isolation cover (13) is fixed to the mounting frame (11) by bolts, and the motor of the fan (12) is fixed to the isolation cover (13).

4. A foldable electric heater according to claim 3, characterized in that: The fixing frame (6) is welded and fixed to the main frame (1), and the folding and flipping frame (4) is welded and fixed to the fixing block (8). The screw hole on the fixing block (8) is adapted to the fastening bolt (9). One end of the fastening bolt (9) is provided with a rotating handle, and the fastening bolt (9) is adapted to the thread of the fastening nut (10). The surface of the fastening nut (10) is provided with a rubber anti-slip gasket, and it is fastened to the fixing frame (6).

5. The foldable electric heater according to claim 4, characterized in that: Anti-slip pads and buffer pads are provided on the interface between the main frame (1) and the folding and flipping frame (4), and support frames are provided at both ends of the heating tube (2), and the support frames are connected to the main frame (1) via bolts.

6. A foldable electric heater according to claim 5, characterized in that: The isolation net (3) is fixed to the main frame (1) by bolts. The isolation net (3) is composed of crisscrossing net rods and a support frame, and the net rods are welded to the support frame.

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