阅读说明：本技术 一种暖风机 (Warm air blower ) 是由 陶斯宏 廖海波 陈其 于 2018-07-23 设计创作，主要内容包括：本发明公开了一种暖风机,包括壳体和保护罩,所述壳体设有新风口,所述保护罩可拆卸地罩设于所述新风口处。当用户不使用新风口时,保护罩能够起到封堵新风口的作用,避免虫鼠进入暖风机内部,提高暖风机的安全性能。(The invention discloses a warm air blower which comprises a shell and a protective cover, wherein the shell is provided with a fresh air opening, and the protective cover is detachably covered at the fresh air opening. When the user does not use the fresh air opening, the protective cover can play the effect of shutoff fresh air opening, avoids the worm and mouse to get into inside the electric fan heater, improves the security performance of electric fan heater.)

1. The utility model provides a warm air blower, its characterized in that includes casing and safety cover, the casing is equipped with the fresh air mouth, safety cover detachably covers and locates fresh air mouth department.

2. The fan heater according to claim 1, wherein the protective cover is connected with the fresh air inlet through a plurality of connecting ribs to form a knock-out hole structure.

3. The fan heater according to claim 1, wherein the protective cover is rotatably or snap-fittingly connected with respect to the fresh air opening for opening or closing the fresh air opening.

4. The fan heater according to claim 1, wherein the fresh air opening is circular or arcuate.

5. The fan heater according to claim 1, wherein a cavity is provided on the outside of the bottom of the housing, and the fresh air inlet is integrally formed in the cavity.

6. The warm-air drier according to claim 1, further comprising a limiting clamp, wherein the limiting clamp comprises a baffle and a fixing part which are integrated, the limiting clamp is fixed on the inner side of the shell through the fixing part, the baffle is of a net structure and faces the fresh air opening to block the fresh air opening, and insects and rats are prevented from entering the inside of the warm-air drier from the fresh air opening while ventilation is allowed.

7. The warm-air drier according to claim 6, wherein the limiting clamp is Z-shaped and comprises a first plane, a second plane which is bent by 90 degrees relative to the first plane and a third plane which is bent by 90 degrees relative to the second plane from top to bottom, the baffle is arranged on the first plane, and the fixing part is arranged on the third plane.

8. The warm-air drier according to claim 7, wherein the fixing portion comprises two first folding edges and a first threaded hole, the first folding edges are arranged in parallel and opposite to each other, the first folding edges are bent by 90 degrees relative to the third plane and are located on one side, far away from the first plane, of the third plane, the first threaded hole is located on the third plane and is located between the two first folding edges, a boss is arranged on the inner side of the shell along the axial direction of the fresh air port, the boss is matched with the two first folding edges to limit the limiting card, a second threaded hole corresponding to the first threaded hole is arranged on the boss, and the first threaded hole and the second threaded hole are connected through screws so that the limiting card is fixed on the boss.

9. The warm-air drier according to claim 7, wherein a second window is arranged in the middle of the second plane and used for avoiding the fresh air pipe.

10. The fan heater according to claim 7, further comprising a clamp for fixing the fresh air duct; the hoop is semicircular and comprises a first supporting leg and a second supporting leg, the first supporting leg is provided with a third folded edge which is bent outwards, the second supporting leg is provided with a fourth folded edge which is bent outwards, and a third threaded hole is formed in the fourth folded edge;

and the left side and the right side of the second plane are respectively provided with a fourth threaded hole and a third window, the clamp is clamped with the third window through the third folded edge and is connected with the third threaded hole and the fourth threaded hole through screws, so that the clamp and the limiting clamp are connected and fixed, and the fresh air pipe is locked.

Technical Field

The invention relates to the field of air conditioners, in particular to a fan heater.

Background

The warm (hot) air blower is an air source heat pump indoor air conditioner mainly with a warming function, and in order to ensure fresh indoor air, a through hole is usually designed on a shell and is used as a fresh air port, outdoor fresh air is introduced into a room through the fresh air port through a hose, so that the freshness of the indoor air is improved, and the breathing health of a user is ensured.

However, in actual use, part of customers may not use the fresh air opening, so that the fresh air opening is not sealed, and thus, insects, mice and other small animals can easily enter the warm air blower, so that not only bacteria are easily generated, and the health of a human body is affected, but also peculiar smell is generated due to the existence of animal corpses such as insects, mice and the like in the warm air blower, and even the internal structure of the machine body is damaged, so that potential safety hazards are generated.

Accordingly, the prior art is yet to be improved and developed.

Disclosure of Invention

In view of the defects of the prior art, the invention aims to provide a warm air blower, and aims to solve the problem that insects and rats can enter the warm air blower through a fresh air opening to generate potential safety hazards when the fresh air opening is not used in the conventional warm air blower.

The technical scheme of the invention is as follows:

the utility model provides a warm air blower, includes casing and safety cover, the casing is equipped with the fresh air mouth, safety cover detachably covers and locates fresh air mouth department.

The warm air blower is characterized in that the protective cover is connected with the fresh air inlet through a plurality of connecting ribs to form a knock-off hole structure.

The warm air blower is characterized in that the protective cover is rotatably connected or buckled relative to the fresh air opening and used for opening or closing the fresh air opening.

The warm air blower is characterized in that the fresh air opening is circular or arched.

The fan heater, wherein, the bottom outside of casing is provided with the cavity, the fresh air inlet integration is formed in the cavity.

The electric fan heater, wherein, still include spacing card, spacing card includes baffle and the fixed part of integration, spacing card passes through the fixed part is fixed in the inboard of casing, the baffle is network structure and just right fresh air inlet for the shutoff fresh air pipe prevents that the worm and mouse from getting into inside the electric fan heater from the fresh air pipe when allowing taking a breath.

The warm air blower is characterized in that the limiting clamp is Z-shaped and comprises a first plane, a second plane and a third plane, wherein the second plane is bent for 90 degrees relative to the first plane, the third plane is bent for 90 degrees relative to the second plane, the baffle is arranged on the first plane, and the fixing part is arranged on the third plane.

The electric fan heater, wherein, the fixed part includes two first hem that are parallel and set up relatively to and first screw hole, first hem for the third plane 90 buckles, and is located keep away from on the third plane one side of first plane, first screw hole is located on the third plane, and be in for two in the middle of the first hem, the inboard of casing is followed the axis direction of fresh air inlet sets up a boss, boss and two first hem cooperation, it is right spacing to spacing card carries out spacingly, be provided with on the boss with the corresponding second screw hole of first screw hole adopts the screw connection first screw hole with the second screw hole, thereby will spacing card is fixed on the boss.

The warm air blower is characterized in that a second window is arranged in the middle of the second plane and used for avoiding a fresh air pipe.

The warm air blower further comprises a hoop used for fixing the fresh air pipe; the hoop is semicircular and comprises a first supporting leg and a second supporting leg, the first supporting leg is provided with a third folded edge which is bent outwards, the second supporting leg is provided with a fourth folded edge which is bent outwards, and a third threaded hole is formed in the fourth folded edge;

and the left side and the right side of the second plane are respectively provided with a fourth threaded hole and a third window, the clamp is clamped with the third window through the third folded edge and is connected with the third threaded hole and the fourth threaded hole through screws, so that the clamp and the limiting clamp are connected and fixed, and the fresh air pipe is locked.

Has the advantages that: according to the warm air blower, the detachable protective cover is designed at the fresh air opening, so that when a user does not use the fresh air opening, the protective cover can play a role in blocking the fresh air opening, insects and mice are prevented from entering the interior of the warm air blower, and the safety performance of the warm air blower is improved.

Drawings

Fig. 1 is a structural view of a preferred embodiment of a fresh air inlet of a fan heater according to the present invention.

Fig. 2 is a partially enlarged view of a fresh air opening of the warm air blower of fig. 1.

Fig. 3 is a partially enlarged view (exploded view) of a preferred embodiment of a fan heater of the present invention.

Fig. 4 is a schematic structural view (exploded view) of the fresh air inlet of the present invention located in the cavity outside the bottom of the casing.

Fig. 5 is a structural diagram of a preferred embodiment of a limit card inside the fan heater of the present invention.

Fig. 6 is a top view of the stopper card of fig. 5.

Fig. 7 is an exploded view of the assembly of the limit card and the boss on the housing, taken along line a-a of fig. 6.

Fig. 8 is a view showing a structure of a yoke in the interior of the fan heater of the present invention.

Fig. 9 is an assembly effect diagram of the fresh air duct, the limit clip and the clamp inside the fan heater of the invention.

Detailed Description

The invention provides a warm air blower, and in order to make the purpose, technical scheme and effect of the invention clearer and clearer, the invention is further described in detail below. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that, the inner side of the housing in the present invention refers to the side of the housing facing the inside of the machine body after being assembled on the fan heater; for convenience of description, the upper, lower, left and right sides of the limit card are all referred to by the placing angle of the attached drawings, and specifically, the description of the technical scheme of the invention is different along with the difference of the viewing angles.

The invention provides a preferred embodiment of a warm air blower, which is shown in fig. 1 and comprises a shell 1 and a protective cover 21, wherein a fresh air opening 2 is arranged on the shell 1, the protective cover 21 is detachably covered at the fresh air opening 2, and a partially enlarged view is shown in fig. 2. Preferably, the diameter D of the fresh air port 2₁Diameter D of fresh air pipe 5₂Satisfies the following conditions: d₁= D₂Plus or minus 1 mm. When fresh air port 2 is in a non-working state (i.e. fresh air port 2 is not used), protective cover 21 can play a role in blocking fresh air port 2, thereby preventing insects and mice from entering the interior of the warm air blower and improving warm airThe safety performance of the fan; when the user uses the fresh air opening 2, the protective cover is detached, the fresh air pipe 5 is installed again, and the connection and installation mode refers to fig. 3.

In the preferred embodiment of the connection mode between the protection cover 21 and the fresh air inlet 2, as shown in fig. 2, the protection cover 21 and the fresh air inlet 2 are connected by a plurality of connecting ribs to form a knock-off hole structure. In the figure, the fresh air opening 2 is arc-shaped, and has a certain clamping and fixing effect when a fresh air pipe 5 (generally a hose) is installed, and of course, the fresh air opening 2 can also be designed to be circular. When the user uses fresh air opening 2, cut the splice bar with the instrument, take off the safety cover, then install fresh air pipe 5. Another example of the connection mode of the protective cover 21 and the fresh air inlet 2 is as follows: the protective cover 21 is rotatably connected with respect to the fresh air opening 2, specifically, the protective cover 21 is hinged at the edge of the fresh air opening 2, the protective cover 21 can rotate around the hinge, when the rotating shaft is parallel to the axis of the fresh air opening 2, the protective cover 21 rotates in a plane parallel to the shell, and when the rotating shaft is perpendicular to the axis of the fresh air opening 2, a flip structure is formed, and the fresh air opening can be opened or closed. Another example of the connection mode of the protective cover 21 and the fresh air inlet 2 is as follows: the protective cover 21 is buckled on the fresh air opening 2, and when the fresh air opening needs to be used, the protective cover 21 is taken down.

The fresh air opening of the invention can be arranged on the bottom surface or any side surface of the shell, and the preferable structure is as follows: the bottom outer side of the shell 1 is provided with a concave cavity 13, the fresh air opening 2 is integrally formed in the concave cavity 13, and as shown in fig. 4, when the fresh air pipe 5 is installed, the fresh air pipe can be hidden in the concave cavity 13, so that the space is saved.

Further, when the user uses fresh air inlet 2, after fresh air inlet 2 is provided with a fresh air pipe, insects and mice can still enter the interior of the fan heater through the fresh air pipe from the outdoor environment, and potential safety hazards are caused. The invention can also solve the problem by arranging a baffle with a net structure at the end close to the fresh air pipe in the warm air blower. Specifically, set up a spacing card 3, spacing card is including baffle 31 and the fixed part 32 of integration, spacing card 3 passes through fixed part 32 is fixed in the inboard of casing 1, baffle 31 is network structure and just right fresh air inlet 2, and the mesh can be circular, square or other anomalous geometry for the shutoff fresh air pipe prevents that the worm and mouse from getting into the electric fan heater inside from the fresh air pipe when allowing taking a breath.

By arranging the limiting card 3, the invention can effectively prevent insects, mice and other small animals from entering the machine under the two conditions of using the fresh air opening and not using the fresh air opening, thereby effectively solving the potential safety hazard.

In light of the above technical solutions, those skilled in the art can easily think of the structure of the position-limiting card 3 that can solve the above technical problems, for example, the position-limiting card 3 is designed to be "L" shaped, as shown in fig. 3, one surface of the "L" shape is a baffle 31, the other surface of the "L" shape is provided with a fixing portion 32, and specifically, the surface can be provided with a threaded hole and fixed on the side wall of the housing by screws.

Fig. 5 shows a structure of a preferred embodiment of a position-limiting card 3 according to the present invention, where the position-limiting card 3 is "Z" shaped and includes, from top to bottom, a first plane 301, a second plane 302 bent at an angle of 90 ° with respect to the first plane, and a third plane 303 bent at an angle of 90 ° with respect to the second plane, a baffle 31 of a mesh structure is disposed on the first plane 301, and the fixing portion 32 is disposed on the third plane 303. Compared with the L-shaped limiting clamp, the Z-shaped limiting clamp can be directly fixed on the bottom surface of the shell (located on the same surface as the fresh air opening) and is convenient to mount.

For the technical scheme that the L-shaped limiting card 3 is directly fixed by the screws, the defects are as follows: when one screw is adopted for fixing, the limiting card 3 is easy to rotate and is not restrained sufficiently; when a plurality of screws are used for fixing, the installation and the disassembly are troublesome, and the relative position between the threaded holes has higher precision requirement. To this end, the present invention provides a preferred structure of the fixing portion 32, as shown in fig. 5-7, the fixing portion 32 includes two first folding edges 321 that are parallel and opposite to each other, and a first threaded hole 322, the first folding edges 321 are bent by 90 ° with respect to the third plane 3031 and are located on one side of the third plane 303 away from the first plane 301, the first threaded hole 322 is located on the third plane 303 and is located between the two first folding edges 321, a boss 11 is disposed on the inner side of the casing 1 along the axial direction of the fresh air inlet 2, as shown in fig. 2 (top view) and fig. 7 (perspective view), the boss 11 is engaged with the two first folding edges 321 to limit the limiting card 3, a second threaded hole 12 corresponding to the first threaded hole 322 is disposed on the boss 11, and the first threaded hole 322 and the second threaded hole 12 are connected by a screw, thereby fixing the limit card 3 on the boss 11, and the assembly mode refers to fig. 6. The fixing structure is convenient to mount and dismount, good in fixing effect and capable of preventing insects and mice from entering the hidden danger inside the fan heater from the gap due to the fact that the fresh air pipe is loosened.

In order to improve the overall strength of the component, the present invention may provide a second folded edge 3032 at the edge of the third plane 303 of the position-limiting card 3, and design the first folded edge 321 to a position in the middle of the third plane 303. Specifically, as shown in fig. 5, two first windows 3031 are disposed on the third plane 303, the two first windows 3031 are respectively located at two sides of the first threaded hole 322, one first folded edge 321 (refer to fig. 5 and 7) is disposed on each of the parallel edges where the distance between the two first windows 3031 is relatively short, two second folded edges 3032 bent by 90 ° are disposed at the edge of the third plane 303, the second folded edges 3032 are parallel to the first folded edges 321, and the bending direction is also the same as the bending direction of the first folded edges 321.

In order to improve the matching between the fresh air duct 5 and the limit card 3, a second window 3021 may be disposed in the middle of the second plane 302 for avoiding the fresh air duct 5, and the avoiding effect is shown in fig. 7.

The structure of the warm air blower is further optimized, and the fresh air pipe 5 is fixed by the hoop 4. Specifically, the hoop 4 is semicircular and includes a first leg 41 and a second leg 42, as shown in fig. 8, a third folding edge 43 bent outward is disposed on the first leg 41, a fourth folding edge 44 bent outward is disposed on the second leg 42, a third threaded hole 441 is disposed on the fourth folding edge 44, and a fourth threaded hole 3023 and a third window 3022 are disposed on each of the left and right sides of the second plane 302. The assembly mode is as shown in fig. 7 and 9, the clamp 4 is clamped with the third window 3022 through the third folding edge 43, and is connected with the third threaded hole 441 and the fourth threaded hole 3023 through screws, so that the clamp 4 is connected and fixed with the limit clamp 3, and the fresh air duct 5 is locked, and the assembly effect is as shown in fig. 9.

In order to further improve the overall strength of the component, the invention may further provide a plurality of fifth folding edges 3011 on the edge of the first plane 301 of the position limiting card 3, specifically, as shown in fig. 5, the folding direction of the fifth folding edges 3011 faces the third plane 303.

The invention discloses a better warm air blower installation fresh air pipe, which comprises the following steps: (1) shearing the protective cover connecting block on the fresh air port 2 by using shearing pliers or other tools, and taking down the protective cover; inserting a fresh air pipe 5 wound with a sealing rubber strip or daub into a fan heater through a fresh air port 2 on a shell 1; (2) the clamp 4 is preassembled. The third folding edge 43 of the clamping hoop 4 is clamped into a third window 3022 on the second plane 302 of the limiting clamp 3; (3) fixing the limiting clamp 3 on the boss 11 of the shell 1 by using a screw, then opening the second support leg 42 of the hoop 4 outwards by a certain angle, sleeving the fresh air pipe 2 into the hoop 4, removing external force to enable the second support leg 42 to recover under elastic restoring force, and enabling the hoop 4 to generate certain clamping force on the fresh air pipe 2; (4) finally, the screw is fixed to the fourth screw hole 3023 on the second plane 302 of the position-limiting clamp 3 through the third screw hole 441 on the fourth folding edge 44 of the clamping hoop 4. And the installation of the fresh air pipe 5 is completed.

In summary, the invention provides the warm air blower, the detachable protective cover is designed at the fresh air inlet, so that when a user does not use the fresh air inlet, the protective cover can play a role of blocking the fresh air inlet, insects and mice are prevented from entering the warm air blower, and the safety performance of the warm air blower is improved; when the user uses the fresh air opening, the protective cover is opened (or taken down), and then the fresh air pipe is installed. The warm air blower can adapt to different application scenes. The invention further optimizes the internal structure of the warm air blower, and can prevent insects and mice from entering the warm air blower from the outside through the fresh air pipe by arranging the limiting clamp structure; the invention also provides an improved scheme of the fixing part of the limit card. Finally, the invention also comprises a scheme of further fixing the fresh air pipe through the clamp.

It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.