Hot air floor blowing machine

Abstract

The utility model discloses a hot air floor blowing machine which comprises a base, a volute and a wind wheel, the volute is provided with a conductive strip and a heating piece, the conductive strip extends in the rotating direction of the volute, the heating piece is arranged on one side of an air outlet and is electrically connected with the conductive strip, and the base is provided with a conductive contact. The conductive contact abuts against the conductive strip and moves along the conductive strip when the volute rotates relative to the base. The conductive strip and the heating piece are arranged on the volute, the conductive contact is arranged on the base, the heating piece is arranged on one side of the air outlet and electrically connected with the conductive strip, and the conductive contact abuts against the conductive strip, so that the heating piece can be electrified and heated through the conductive strip and the conductive contact, hot air can be output by the floor blowing machine, and the floor drying efficiency is high. Meanwhile, the conductive strip extends in the rotating direction of the volute, and the conductive contact moves along the conductive strip when the volute rotates relative to the base, so that the heating piece can continuously heat the air when the volute rotates (namely, hot air can be swung out during electrification).

Description

Technical Field

[0001] The utility model relates to the field of blowing devices, in particular to a hot air floor blower. Background Art

[0002] A floor blower is a device that blows air onto the ground to dry the ground. The existing floor blower includes a housing, a volute provided on the housing, and a wind wheel provided in the volute. The volute can rotate relative to the housing to adjust the air outlet angle, and the wind wheel can rotate relative to the volute to blow air. The floor blower has a simple structure and flexible air outlet. However, since the floor blower can only blow cold air, the evaporation speed of the ground moisture is slow, the ground drying time is long, and the efficiency is low. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a hot air floor blower to solve the problems that the existing floor blower can only blow cold air, the ground drying time is long, and the efficiency is low.

[0004] The utility model is realized by the following technical solutions:

[0005] The hot air floor blower includes a base, a volute and a wind wheel. The volute is rotatably connected to the base. The volute has a wind guiding cavity, an air inlet and an air outlet. The wind wheel is accommodated in the wind guiding cavity to drive air to flow from the air inlet to the air outlet. The volute is provided with a conductive strip and a heating element. The conductive strip extends in the rotation direction of the volute. The heating element is arranged on one side of the air outlet and is electrically connected to the conductive strip. The base is provided with a conductive contact, and the conductive contact abuts against the conductive strip and moves along the conductive strip when the volute rotates relative to the base.

[0006] Further, a grille member is detachably and fixedly connected to the volute at the air outlet. The grille member partially extends into the wind guiding cavity. One end of the grille member extending into the wind guiding cavity is detachably and fixedly connected to the heating element.

[0007] Further, the grille member has two limiting portions extending from the air outlet into the wind guiding cavity. The two limiting portions are oppositely arranged to cooperate with each other to clamp the heating element. The limiting portion is provided with a stop portion for restricting the heating element from moving away from the grille member.

[0008] Further, the grille member has a plurality of grid bars arranged vertically and horizontally. The grid bars are oppositely arranged to cooperate with the stop portion to clamp the heating element.

[0009] Further, an installation groove is provided on one side of the volute opposite to the conductive contact. A jack is provided at the bottom of the installation groove. The conductive strip is embedded in the installation groove and partially extends into the wind guiding cavity from the jack to be connected to the heating element.

[0010] Further, the volute rotates relative to the base about the axis of the air inlet, and the installation groove is annularly arranged outside the air inlet.

[0011] Further, the base has an assembly cavity and an exposed hole. The conductive contact is accommodated in the assembly cavity and partially extends out of the base from the exposed hole to abut against the conductive strip.

[0012] Further, there are 2 conductive strips and 4 conductive contacts. Among the four conductive contacts, two conductive contacts abut against one conductive strip, and the other two conductive contacts abut against the other conductive strip.

[0013] Further, the base has two limiting arms oppositely arranged in the rotation direction of the volute. The limiting arms are used to abut against the air outlet end of the volute to limit the rotation of the volute, and the central angle corresponding to the conductive strip is not less than the included angle between the two limiting arms.

[0014] The advantages of this technical solution are as follows: by providing a conductive strip and a heating element on the volute, a conductive contact is provided on the base, the heating element is arranged on one side of the air outlet and electrically connected to the conductive strip, and the conductive contact abuts against the conductive strip. Therefore, the heating element can be powered on and heated up through the conductive strip and the conductive contact, realizing that the floor blower blows hot air, shortening the time for drying the ground, and having high dry ground efficiency. At the same time, since the conductive strip extends along the rotation direction of the volute and the conductive contact moves along the conductive strip when the volute rotates relative to the base, the heating element can continuously heat the air when the volute rotates (that is, it can swing out hot air during power-on), and there is no need for wiring connection to avoid wire winding or pulling and breaking when the volute rotates. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for description in the embodiments.

[0017] Figure 1 is a three-dimensional view of the hot air floor blower disclosed in the embodiment;

[0018] Figure 2 is a partial three-dimensional view of the hot air floor blower disclosed in the embodiment (hiding part of the base and the volute);

[0019] Figure 3 is Figure 2 the partial enlarged view at A in

[0020] Figure 4 is an exploded view of the hot air blower for blowing the ground disclosed in the embodiment;

[0021] Figure 5 is a cross-sectional view of the hot air blower for blowing the ground disclosed in the embodiment;

[0022] Figure 6 is Figure 5 a partial enlarged view at position B in

[0023] Figure 7 is a three-dimensional view of the volute in the embodiment;

[0024] Figure 8 is Figure 7 a partial enlarged view at position C in

[0025] Figure 9 is a three-dimensional view of the base in the embodiment;

[0026] Figure 10 is Figure 9 a partial enlarged view at position D in Specific Embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0028] Embodiment: As Figure 1-10 shown, the hot air blower for blowing the ground includes a base 1, a volute 2 and a wind wheel 3. The volute 2 is rotatably connected to the base 1. The volute 2 has a wind guiding cavity 201, an air inlet 202 and an air outlet 203. The wind wheel 3 is accommodated in the wind guiding cavity 201 and is used to drive air to flow from the air inlet 202 to the air outlet 203. A conductive strip 4 and a heating element 5 are provided on the volute 2. The conductive strip 4 extends in the rotation direction of the volute 2. The heating element 5 is arranged on one side of the air outlet 203 and is electrically connected to the conductive strip 4. A conductive contact 6 is provided on the base 1. The conductive contact 6 abuts against the conductive strip 4 and moves along the conductive strip 4 when the volute 2 rotates relative to the base 1. Among them, the heating element 5 is an electric heating element. The conductive contact 6 is connected to an internal power supply or an external power supply through a wire (not shown in the figure), and the conductive strip 4 is connected to the heating element 5 through a wire (not shown in the figure). When the internal power supply or the external power supply supplies power, the heating element 5 is energized and heated up through the conductive strip 4 and the conductive contact 6, so that the air flowing through it to the air outlet 203 is heated up, realizing that the blower blows out hot air, shortening the time for drying the ground, and having high dry ground efficiency.

[0029] In summary, the present embodiment provides a hot air floor blower to solve the problems of the existing floor blower that can only blow cold air, resulting in a long drying time and low efficiency for the ground. This is mainly achieved by arranging a conductive strip 4 and a heating element 5 on the volute 2, providing a conductive contact 6 on the base 1, with the heating element 5 disposed on one side of the air outlet 203 and electrically connected to the conductive strip 4, and the conductive contact 6 abutting against the conductive strip 4. Therefore, the heating element 5 can be powered on and heated up through the conductive strip 4 and the conductive contact 6, enabling the floor blower to blow hot air, shortening the drying time of the ground, and having a high dry ground efficiency. At the same time, since the conductive strip 4 extends along the rotation direction of the volute 2 and the conductive contact 6 moves along the conductive strip 4 when the volute 2 rotates relative to the base 1, the heating element 5 can continuously heat the air when the volute 2 rotates (i.e., it can swing and blow hot air during power-on), and there is no need for wiring connections to avoid wire entanglement or breakage due to pulling during the rotation of the volute 2.

[0030] In an embodiment of the present invention, a grille member 7 is detachably and fixedly connected to the air outlet 203 of the volute 2, and a part of the grille member 7 extends into the air guide cavity 201, and a heating element 5 is detachably and fixedly connected to the end of the grille member 7 extending into the air guide cavity 201. The above arrangement detachably and fixedly connects the grille member 7 to the air outlet 203 and detachably and fixedly connects the heating element 5 to the grille member 7, which not only prevents users from directly contacting the heating element 5 but also facilitates the assembly and maintenance of the heating element 5.

[0031] In an embodiment of the present invention, the grille member 7 has two limiting portions 701 extending from the air outlet 203 into the air guide cavity 201, and the two limiting portions 701 are oppositely arranged to cooperate with each other to clamp the heating element 5, and a stop portion 702 for restricting the heating element 5 from moving away from the grille member 7 is provided on the limiting portion 701. Since the grille member 7 has two limiting portions 701 that cooperate with each other to clamp the heating element 5, and the stop portion 702 for restricting the heating element 5 from moving away from the grille member 7 is provided on the limiting portion 701, the assembly of the heating element 5 and the grille member 7 is stable.

[0032] In an embodiment of the present invention, the grille member 7 has a plurality of grid bars 703 that intersect vertically and horizontally, and the grid bars 703 are oppositely arranged to cooperate with the stop portion 702 to clamp the heating element 5. Since the grid bars 703 are oppositely arranged to cooperate with the stop portion 702 to clamp the heating element 5, the assembly of the heating element 5 and the grille member 7 is stable.

[0033] In an embodiment of the present invention, an installation groove 204 is provided on the side of the volute 2 opposite to the conductive contact 6, a jack 205 is provided at the bottom of the installation groove 204, the conductive strip 4 is embedded in the installation groove 204 and part of it extends into the air guide cavity 201 from the jack 205 to be connected to the heating element 5. The above arrangement sets the installation groove 204 on the side of the volute 2 opposite to the conductive contact 6 and sets the jack 205 at the bottom of the installation groove 204, and the conductive strip 4 is embedded in the installation groove 204 and part of it extends into the air guide cavity 201 from the jack 205 to be connected to the heating element 5. Therefore, the assembly of the conductive strip 4 and the volute 2 is stable.

[0034] In the embodiment of the present utility model, the volute 2 rotates relative to the base 1 around the axis of the air inlet 202, and the installation groove 204 is arranged in a ring shape outside the air inlet 202. By arranging the installation groove 204 outside the air inlet 202, the setting position of the installation groove 204 is reasonable and compact.

[0035] In the embodiment of the present utility model, the base 1 has an assembly cavity 101 and an exposed hole 102. The conductive contact 6 is accommodated in the assembly cavity 101 and partially extends out of the base 1 from the exposed hole 102 to abut against the conductive bar 4. Since the conductive contact 6 is accommodated in the assembly cavity 101 and partially extends out of the base 1 from the exposed hole 102 to abut against the conductive bar 4, the assembly of the conductive contact 6 and the base 1 is stable.

[0036] In the embodiment of the present utility model, there are 2 conductive bars 4 and 4 conductive contacts 6. Among the four conductive contacts 6, two conductive contacts 6 abut against one conductive bar 4, and the other two conductive contacts 6 abut against the other conductive bar 4.

[0037] In the embodiment of the present utility model, the base 1 has two limiting arms 103 that are oppositely arranged in the rotation direction of the volute 2. The limiting arms 103 are used to abut against the air outlet end of the volute 2 to limit the rotation of the volute 2, and the central angle corresponding to the conductive bar 4 is not less than the included angle between the two limiting arms 103. Since the base 1 has two limiting arms 103 that are oppositely arranged in the rotation direction of the volute 2, the rotation amplitude of the volute 2 is restricted to avoid excessive rotation of the volute 2. Also, since the central angle corresponding to the conductive bar 4 is not less than the included angle between the two limiting arms 103, the conductive bar 4 and the conductive contact 6 always remain in contact within the rotation amplitude of the volute 2, ensuring stable conduction.

[0038] It should be understood that in the present utility model, terms such as "first" and "second" are used to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the orientation or positional relationship indicated by terms such as "center of the circle", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0039] As described above, one or more embodiments are provided in combination with specific contents, and it is not determined that the specific implementation of the present utility model is only limited to these descriptions. Any approximation, similarity to the method, structure, etc. of the present utility model, or several technical deductions or substitutions made under the premise of the concept of the present utility model should be regarded as the protection scope of the present utility model.

Claims

1. A hot air floor blower, comprising a base, a volute and a wind wheel, wherein the volute is rotatably connected to the base, the volute has an air guide cavity, an air inlet and an air outlet, the wind wheel is accommodated in the air guide cavity and is used to drive air to flow from the air inlet to the air outlet, characterized in that: A conductive strip and a heating element are provided on the volute, wherein the conductive strip extends in the rotation direction of the volute, and the heating element is provided on one side of the air outlet and is electrically connected to the conductive strip. A conductive contact is provided on the base, wherein the conductive contact abuts against the conductive strip and moves along the conductive strip when the volute rotates relative to the base.

2. The hot air floor blower according to claim 1, characterized in that: The volute is detachably fixedly connected with a grille member at the air outlet, the grille member partially extends into the air guide cavity, and one end of the grille member extending into the air guide cavity is detachably fixedly connected with the heating member.

3. The hot air floor blower according to claim 2, characterized in that: The grille member has two limiting portions extending from the air outlet toward the air guide cavity, the two limiting portions are arranged opposite to each other to cooperate and clamp the heating element, and the limiting portions are provided with a stopper portion for limiting the heating element from moving away from the grille member.

4. The hot air floor blower according to claim 3, characterized in that: The grille member has a plurality of crisscrossed grid bars, and the grid bars are arranged opposite to the stopper to cooperate with and clamp the heating element.

5. The hot air floor blower according to claim 1, characterized in that: A mounting groove is provided on one side of the volute opposite to the conductive contact, a plug hole is provided at the bottom of the mounting groove, the conductive strip is embedded in the mounting groove and partially extends from the plug hole into the air guide cavity to be connected with the heating element.

6. The hot air floor blower according to claim 5, characterized in that: The volute rotates relative to the base around the axis of the air inlet, and the mounting groove ring is arranged outside the air inlet.

7. The hot air floor blower according to claim 1, characterized in that: The base has an assembly cavity and an exposed hole. The conductive contact is accommodated in the assembly cavity and partially extends out of the exposed hole so that the base abuts against the conductive strip.

8. The hot air floor blower according to claim 1, characterized in that: There are two conductive strips and four conductive contacts. Among the four conductive contacts, two conductive contacts abut against one conductive strip, and the other two conductive contacts abut against another conductive strip.

9. The hot air floor blower according to claim 1, characterized in that: The base has two limit arms arranged opposite to each other in the rotation direction of the volute, and the limit arms are used to abut against the air outlet end of the volute to limit the rotation of the volute, and the central angle corresponding to the conductive strip is not less than the included angle of the two limit arms.

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