Warm air blower

Abstract

The utility model discloses a warm air blower, which relates to the field of warm air blowers, and adopts the technical scheme that the warm air blower comprises a machine body, a heat insulation net is mounted on the front side of the machine body, a ventilation grille is arranged on the rear side of the machine body, protective shells are arranged on two sides of the machine body, rolling columns are arranged in the two protective shells, and covering cloth is fixedly connected onto the rolling columns. One end of the covering cloth can be fixed to the machine body, and a containing groove is formed in the ventilation grille. When the machine body needs to be stored, people pull out one end of the shielding cloth and fix the other end of the shielding cloth to the machine body, at the moment, the winding column can apply pulling force to the shielding cloth, so that the shielding cloth can be tightly attached to the machine body, the ventilation fence and the heat insulation net are both shielded and sealed by the shielding cloth, and the difficulty that water vapor and dust enter the machine body can be increased; and the containing groove is formed, so that people can put moisture absorption tools such as a drying bag into the containing groove, the immersion of water vapor in the machine body is reduced, and the overall service life of elements in the fan heater is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of heaters, and more specifically, it relates to a heater. Background Technology

[0002] A fan heater is a small heating device that generates hot air using electricity, mainly used for rapid heating of local spaces or small areas.

[0003] These small space heaters are generally used in winter when temperatures are low. In other seasons, people need to store them and use them again the following winter. The front and back of the space heater are connected to the internal heating wires and other structures. When the air humidity is high, such as during the humid season, moisture can easily affect the internal heating wires and other electrical structures, thus affecting the lifespan of the space heater's internal structure.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a warm air heater.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a heater, including a body, a heat insulation net installed on the front side of the body, a ventilation grille provided on the rear side of the body, protective shells provided on both sides of the body, a winding column provided inside each of the two protective shells, the winding column being rotatable inside the protective shell, a cover cloth fixedly connected to the winding column, one end of the cover cloth always protruding outside the protective shell, the openings of the two protective shells facing opposite directions, one end of the cover cloth being fixed to the body, the winding column being able to provide a force to roll the cover cloth toward the protective shell, and a receiving groove provided on the ventilation grille.

[0007] The present invention is further configured such that: an upper rail shell and a lower rail shell are fixedly connected to both the front and rear sides of the machine body, and a sliding groove is provided on the side of the upper rail shell and the lower rail shell facing each other; the heat insulation net and the ventilation grille are located between the corresponding upper rail shell and the lower rail shell; and the upper and lower ends of the covering cloth can be embedded in the sliding groove.

[0008] The present invention is further configured such that: elastic strips are fixedly connected to the inner walls of both the upper and lower rail shells, and the elastic strips are used to press the cover cloth against the machine body.

[0009] The present invention is further configured such that a retaining piece is fixedly connected to one end of the cover that protrudes from the protective shell.

[0010] The present invention is further configured such that: a hook and loop fastener is adhered to the retaining sheet, and a loop and loop fastener is fixedly connected to the body, with the two ends of the loop and loop fastener extending to the upper rail shell and the lower rail shell respectively.

[0011] The present invention is further configured such that: a torsion spring is provided on the winding column, one end of the torsion spring is engaged with the inner wall of the protective shell, and the other end of the torsion spring is engaged with the winding column.

[0012] In summary, this utility model has the following beneficial effects:

[0013] When the unit needs to be stored, one end of the cover is pulled out and laid across the insulation net or ventilation grille. The other end of the cover is then fixed to the unit. At this time, the retractor provides tension to the cover, which allows it to be pressed tightly against the unit. After both covers are pulled out and fixed, the ventilation grille and insulation net will be blocked and closed by the covers, making it more difficult for moisture and dust to enter the unit. The inclusion of a storage compartment allows people to place desiccant bags and other moisture-absorbing tools inside, thereby reducing the intrusion of moisture into the unit and ensuring the overall lifespan of the internal components of the heater. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0016] Figure 3 This is a cross-sectional view of the present invention;

[0017] Figure 4 for Figure 3 Enlarged view of part A in the middle.

[0018] In the diagram: 1. Body; 2. Heat insulation mesh; 3. Ventilation grille; 4. Protective shell; 5. Covering cloth; 6. Receiving groove; 7. Upper rail shell; 8. Lower rail shell; 9. Slide groove; 10. Elastic strip; 11. Velcro surface. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] A type of heater, such as Figure 1 and Figure 2As shown, the device includes a body 1, with a heat insulation net 2 installed on the front side and a ventilation grille 3 on the rear side. Protective shells 4 are installed on both sides of the body 1, each containing a winding post that can rotate within the shell. A cover 5 is fixedly connected to the winding post, with one end of the cover 5 always protruding outside the shell 4. The openings of the two shells 4 face opposite directions. One end of the cover 5 can be fixed to the body 1. The winding post provides a force to roll the cover 5 towards the shell 4. The ventilation grille 3 has a receiving groove 6. The cover 5 is coated with a waterproof coating to reduce moisture penetration. During use, both cover 5 are rolled up on the winding post and only one cover 5 is in use. One end of the cover 5 protrudes outside the protective shell 4, thus not affecting the overall use of the unit 1. When the unit 1 needs to be stored, one end of the cover 5 is pulled out and spans the heat insulation net 2 or ventilation grille 3. The other end of the cover 5 is then fixed to the unit 1. At this time, the retracting column can provide a pulling force to the cover 5, thereby making the cover 5 stick tightly to the unit 1. After the two covers 5 are pulled out and fixed respectively, the ventilation grille and heat insulation net 2 will be blocked and closed by the cover 5, thereby increasing the difficulty for moisture and dust to enter the unit 1. In addition, the opening of the receiving slot 6 allows people to put desiccant bags and other moisture-absorbing tools into the receiving slot 6, thereby reducing the infiltration of moisture into the unit 1 and ensuring the overall lifespan of the internal components of the heater.

[0021] like Figure 3 and Figure 4 As shown, upper rail shell 7 and lower rail shell 8 are fixedly connected to both the front and rear sides of the body 1. Slide grooves 9 are provided on the opposite sides of the upper rail shell 7 and lower rail shell 8. The heat insulation mesh 2 and ventilation grille 3 are located between the corresponding upper rail shell 7 and lower rail shell 8. Both the upper and lower ends of the cover 5 can be inserted into the slide grooves 9. When pulling the cover 5 out of the protective shell 4, the upper and lower ends of the cover 5 are first inserted into the slide grooves 9 of the upper rail shell 7 and lower rail shell 8 respectively. This arrangement prevents the cover 5 from becoming misaligned during the pulling process. A retaining piece is fixedly connected to the end of the cover 5 that protrudes from the protective shell 4. The retaining piece uses... Made of plastic, the retaining plate gives one end of the cover 5 a certain rigidity. People only need to insert the upper and lower ends of the retaining plate into the upper rail shell 7 and the lower rail shell 8 respectively. Since the upper and lower ends of the retaining plate will be embedded in the corresponding sliding grooves 9, the cover 5 can be driven to slide into the upper rail shell 7 and the lower rail shell 8. Elastic strips 10 are fixedly connected to the inner walls of the upper rail shell 7 and the lower rail shell 8. The elastic strips 10 are used to press the cover 5 against the machine body 1. When the cover 5 slides between the elastic strip 10 and the machine shell, the elastic strip 10 will press one side of the cover 5, thereby reducing the gap between the cover 5 and the machine body 1, thus reducing the entry of air.

[0022] like Figure 1As shown, a hook-and-loop fastener is attached to the sheet, and a loop fastener 11 is fixedly connected to the body 1. The two ends of the loop fastener 11 extend to the upper rail shell 7 and the lower rail shell 8, respectively. There are two loop fasteners 11, both positioned near the protective shell 4. After the sheet 5 is pulled out of the protective shell 4 and passes over the ventilation grille 3 or the heat insulation net 2, the hook-and-loop fastener is directly attached to the loop fastener 11, thus securing one end of the sheet 5. A torsion spring is provided on the winding post. One end of the spring is engaged with the inner wall of the protective shell 4, and the other end of the torsion spring is engaged with the winding post. When people pull the cover 5 out of the protective shell 4, the torsion spring twists, thereby providing a winding force to the cover 5. After one end of the cover 5 is fixed, under the force of the torsion spring, the cover 5 can be made to stick tightly, and it is also convenient for the cover 5 to be retracted into the protective shell 4 later. The cross-section of the protective shell 4 is semi-circular, and there is a gap between the winding post and the inner wall of the protective shell 4 for people to insert their hands, so that people can lift the machine body 1 by inserting their hands into the protective shell 4.

[0023] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A heater, comprising a body (1), wherein a heat insulation mesh (2) is installed on the front side of the body (1), and a ventilation grille (3) is provided on the rear side of the body (1), characterized in that: The body (1) is provided with protective shells (4) on both sides. Each of the two protective shells (4) is provided with a winding column. The winding column can rotate inside the protective shell (4). A cover (5) is fixedly connected to the winding column. One end of the cover (5) is always exposed outside the protective shell (4). The openings of the two protective shells (4) are opposite. One end of the cover (5) can be fixed to the body (1). The winding column can provide a force to roll the cover (5) toward the protective shell (4). The ventilation grille (3) is provided with a receiving groove (6).

2. A heater according to claim 1, characterized in that: The upper rail shell (7) and the lower rail shell (8) are fixedly connected to the front and rear sides of the body (1). The upper rail shell (7) and the lower rail shell (8) are provided with sliding grooves (9) on the side facing each other. The heat insulation net (2) and the ventilation grille (3) are located between the corresponding upper rail shell (7) and the lower rail shell (8). The upper and lower ends of the cover (5) can be embedded in the sliding grooves (9).

3. A heater according to claim 2, characterized in that: Elastic strips (10) are fixedly connected to the inner walls of the upper rail shell (7) and the lower rail shell (8). The elastic strips (10) are used to press the cover (5) against the body (1).

4. A heater according to claim 2, characterized in that: A retaining piece is fixedly connected to one end of the cover (5) that protrudes from the protective shell (4).

5. A heater according to claim 4, characterized in that: The retaining sheet is attached with a hook and loop fastener, and the body (1) is fixedly connected with a hook and loop fastener (11). The two ends of the hook and loop fastener (11) extend to the upper rail shell (7) and the lower rail shell (8), respectively.

6. A heater according to claim 1, characterized in that: The winding post is equipped with a torsion spring. One end of the torsion spring is engaged with the inner wall of the protective shell (4), and the other end of the torsion spring is engaged with the winding post.

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