Protective fan

Abstract

The utility model belongs to the field of fans, and particularly relates to a protective fan which comprises a base, fan blades, a fixing shell, a protective cover body and a square locking device. An air inlet end is arranged on the side wall of the base, an opening in the top wall of the base forms an air outlet end, and the fan blades rotate in the base so as to convey air flow from the air inlet end to the air outlet end. A fixed shell with an opening is arranged on the top wall of the base, and the square locking device detachably surrounds the periphery of the fixed shell. The upper end of the fixing shell is further connected with a protective cover body, and a filtering layer used for filtering is arranged in the protective cover body. The detachable square locking devices are arranged on the periphery of the fixing shell of the fan, so that the occurrence probability of safety accidents is greatly reduced. Air flow is driven by the fan blades to flow in from the side wall of the base, flows out from the air outlet end of the top wall of the base, penetrates through the fixed shell and the filter layer in the protective cover body and then is discharged out of the body, and the stability of the whole fan is enhanced through the multi-layer connecting structure.

Description

Technical Field

[0001] The utility model belongs to the field of fans, and in particular relates to a protective fan. Background Art

[0002] In the existing technology, fans are a common ventilation equipment widely used in homes, offices, factories and other places. However, the traditional fan design has shortcomings in terms of safety. Specifically, when the fan blades rotate at high speed, if the user or an object accidentally touches them, it is very easy to cause a safety accident. In addition, traditional fans often do not have effective filtering devices during the air intake process, causing dust and impurities in the air to directly enter the room, posing a threat to the user's health.

[0003] In order to solve the above problems, some improved fans have appeared on the market, but most of them only improve a specific aspect of the fan, such as adding a protective net to reduce the damage of the fan blades to the user, or adding a filter to improve the air quality. However, these improvement schemes often have problems such as complex structure, inconvenient installation, poor filtering effect, etc., and fail to comprehensively consider the overall performance and safety of the fan. Utility Model Content

[0004] The purpose of the utility model is to provide a protective fan to solve the above problems.

[0005] To achieve the above-mentioned purpose, the utility model provides a protective fan, including a base, a fan blade, a fixed shell, a protective cover body and a square locking device. An air inlet end is provided on the side wall of the base, and an air outlet end is formed by an opening on the top wall of the base. The fan blade rotates in the base to transport the airflow from the air inlet end to the air outlet end. An open fixed shell is provided on the top wall of the base, and the square locking device is detachably enclosed around the fixed shell. The upper end of the fixed shell is also connected to the protective cover body, and a filter layer for filtering is provided in the protective cover body.

[0006] Furthermore, a motor is installed in the base, and a driving end of the motor is connected to the fan blades to drive the fan blades to rotate.

[0007] Furthermore, a plurality of first mounting holes are provided on the base, a second mounting hole is provided at a corner of the fixed shell, and a locking member passes through the second mounting hole and is connected to the first mounting hole.

[0008] Furthermore, a top protrusion is provided at the corner of the fixed shell, and the square locking device includes a first locking piece and a second locking piece. Two relative abutment parts are provided at the inward middle ends of the two pieces, and a gap groove is provided between the two abutment parts. The top protrusion extends into the gap groove, so that the first locking piece and the second locking piece are both engaged and connected with the fixed shell.

[0009] Furthermore, buckles are provided at both ends of the first locking member, and correspondingly, snap-fitting portions are provided at both ends of the second locking member, and the buckles extend into the snap-fitting portions to form a snap-fitting connection.

[0010] Furthermore, both ends of the first locking member are provided with vertical grooves, and both ends of the second locking member are provided with matching convex grooves, which extend into the grooves to form a positioning connection.

[0011] Furthermore, the protective cover body is provided with a penetrating communication groove, and an arc-shaped groove which is recessed inward is provided in the communication groove, and the filter layer is clamped in the arc-shaped groove.

[0012] The above one or more technical solutions in the protective fan provided by the embodiment of the utility model have at least the following technical effects:

[0013] By setting a detachable square locking device around the fixed shell of the fan, it effectively prevents users or objects from directly contacting the high-speed rotating fan blades, thereby greatly reducing the probability of safety accidents. Driven by the fan blades, the wind flows in from the side wall of the base and flows out from the air outlet end of the top wall of the base, passes through the fixed shell and the filter layer in the protective cover body and then is discharged from the body. The multi-layer connection structure enhances the stability of the entire fan. At the same time, the design of the square locking device and the protective cover body makes the installation and removal of the fan more convenient and quick, reduces the difficulty of user operation, and has strong versatility and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 The structure of the protective fan provided by the embodiment of the utility model Figure 1 .

[0016] Figure 2 The structure of the protective fan provided by the embodiment of the utility model Figure 2 .

[0017] Description of main reference numerals: 100, base; 110, fan blade; 120, fixed shell; 130, protective cover; 140, square locking device; 141, first locking member; 142, second locking member; 150, air inlet end; 151, air outlet end; 160, filter layer; 170, motor; 180, first mounting hole; 190, second mounting hole;

[0018] 200, top protrusion; 210, abutment portion; 220, gap groove; 230, buckle; 240, engaging portion; 250, groove; 260, convex groove; 270, connecting groove; 280, arc-shaped groove. DETAILED DESCRIPTION

[0019] The following describes the embodiments of the present invention in detail. Figures 1-2 , wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. Figures 1-2 The described embodiments are exemplary and are intended to be used to explain the embodiments of the present invention, but should not be construed as limiting the present invention.

[0020] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention 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 cannot be understood as a limitation on the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0022] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0023] In the embodiment of the utility model, this case provides a protective fan, including a base 100, a fan blade 110, a fixed shell 120, a protective cover body 130 and a square locking device 140. An air inlet end 150 is provided on the side wall of the base 100, and the top wall opening of the base 100 forms an air outlet end 151. The fan blade 110 rotates in the base 100 to transport the air flow from the air inlet end 150 to the air outlet end 151. A motor 170 is also installed in the base 100, and the driving end of the motor 170 is connected to the fan blade 110 to drive the fan blade 110 to rotate. An open fixed shell 120 is provided on the top wall of the base 100, and the square locking device 140 is detachably enclosed around the fixed shell 120. The upper end of the fixed shell 120 is also connected to the protective cover body 130, and a filter layer 160 for filtering is provided in the protective cover body 130.

[0024] Specifically, by providing a detachable square locking device 140 around the fixed shell 120 of the fan, it is effectively prevented that the user or object directly contacts the high-speed rotating fan blades 110, thereby greatly reducing the probability of safety accidents. Driven by the fan blades 110, the wind flows in from the side wall of the base 100, and flows out from the air outlet end 151 of the top wall of the base 100, passes through the fixed shell 120 and the filter layer 160 in the protective cover body 130, and then is discharged from the body. The multi-layer connection structure enhances the stability of the entire fan. At the same time, the design of the square locking device 140 and the protective cover body 130 makes the installation and removal of the fan more convenient and quick, reduces the difficulty of user operation, and has strong versatility and practicality.

[0025] In another embodiment of the utility model, the base 100 is further provided with a plurality of first mounting holes 180, the corner of the fixed shell 120 is provided with a second mounting hole 190, and a locking member passes through the second mounting hole 190 and is connected to the first mounting hole 180. By respectively providing the first mounting hole 180 and the second mounting hole 190 on the base 100 and the fixed shell 120, and connecting them with the locking member, the assembly process of the fan is greatly simplified. The user or manufacturer only needs to place the fixed shell 120 on the base 100, and then use the locking member (such as screws, bolts, etc.) to fix the two, without the need for complicated installation steps and tools, thereby improving the assembly efficiency.

[0026] In another embodiment of the utility model, a top protrusion 200 is further provided at the corner of the fixed shell 120, and the square locking device 140 includes a first locking member 141 and a second locking member 142, and two opposing abutting portions 210 are provided at the inward middle ends of the two abutting portions 210, and a gap groove 220 is provided between the two abutting portions 210. The top protrusion 200 extends into the gap groove 220, so that the first locking member 141 and the second locking member 142 are both engaged and connected with the fixed shell 120. The top protrusion 200 at the corner of the fixed shell 120 cooperates with the gap groove 220 between the first locking member 141 and the second locking member 142 in the square locking device 140, so that the two are engaged and connected. This design makes the assembly process simple and quick, without the need for additional tools or complicated steps, while ensuring the stability of the connection. Even after long-term use, due to this mechanical locking structure, the connection is not easy to loosen, thereby ensuring the stability and safety of the fan.

[0027] In another embodiment of the utility model, buckles 230 are provided at both ends of the first locking member 141, and correspondingly, engaging portions 240 are provided at both ends of the second locking member 142, and the buckles 230 extend into the engaging portions 240 to form a snap connection. Vertical grooves 250 are also provided at both ends of the first locking member 141, and matching convex grooves 260 are also provided at both ends of the second locking member 142, and the convex grooves 260 extend into the grooves 250 to form a positioning connection. Specifically, buckles 230 are provided at both ends of the first locking member 141, and engaging portions 240 matched therewith are provided at both ends of the second locking member 142. This snap connection method enables the two to be quickly and accurately combined together without the need for additional tools or complicated steps. In addition to the snap connection, vertical grooves 250 are also provided at both ends of the first locking member 141, and matching convex grooves 260 are provided at both ends of the second locking member 142. When the protrusion 260 extends into the groove 250, the two form a positioning connection, further enhancing the stability of the connection.

[0028] In another embodiment of the utility model, the protective cover body 130 is provided with a through-connecting groove 270, and an arc-shaped groove 280 is provided in the connecting groove 270, and the filter layer 160 is clamped in the arc-shaped groove 280. Specifically, by clamping the filter layer 160 in the arc-shaped groove 280, the filter layer 160 is firmly installed on the protective cover body 130. This design effectively prevents the filter layer 160 from being displaced or falling off due to vibration or airflow impact during use, and ensures that the fan continuously and stably outputs filtered clean air.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A protective fan, characterized in that: It includes a base, fan blades, a fixed shell, a protective cover body and a square locking device; an air inlet end is provided on the side wall of the base, and an air outlet end is formed by an opening on the top wall of the base, and the fan blades rotate in the base to transport the airflow from the air inlet end to the air outlet end; the fixed shell with an opening is provided on the top wall of the base, and the square locking device can be detachably surrounded by the fixed shell; the upper end of the fixed shell is also connected to the protective cover body, and a filter layer for filtering is provided in the protective cover body.

2. The protective fan according to claim 1, characterized in that: A motor is also installed in the base, and a driving end of the motor is connected to the fan blades to drive the fan blades to rotate.

3. The protective fan according to claim 1, characterized in that: The base is also provided with a plurality of first mounting holes, a corner of the fixing shell is provided with a second mounting hole, and a locking member passes through the second mounting hole and is connected with the first mounting hole.

4. The protective fan according to claim 1, characterized in that: The corner of the fixed shell is also provided with a protruding protrusion, and the square locking device includes a first locking piece and a second locking piece. Two relative abutment parts are provided at the inward middle ends of the two pieces, and a gap groove is provided between the two abutment parts. The protruding protrusion extends into the gap groove, so that the first locking piece and the second locking piece are both engaged and connected with the fixed shell.

5. The protective fan according to claim 4, characterized in that: Buckles are provided at both ends of the first locking member, and correspondingly, engaging portions are provided at both ends of the second locking member, and the buckles extend into the engaging portions to form an engaging connection.

6. The protective fan according to claim 4, characterized in that: Both ends of the first locking member are provided with vertical grooves, and both ends of the second locking member are provided with matching convex grooves, and the convex grooves extend into the grooves to form a positioning connection.

7. The protective fan according to claim 1, characterized in that: The protective cover body is provided with a penetrating communication groove, and an arc-shaped groove which is recessed inward is provided in the communication groove, and the filter layer is clamped in the arc-shaped groove.

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