Portable waist hanging fan

Abstract

The utility model relates to a kind of portable hanging waist fan, and its technical solution main points are: including: shell, blower mechanism, power storage mechanism and exhaust hood;The exhaust hood is provided with exhaust frame;The exhaust hood is detachably installed in the front end of the shell one side, to cooperate formation is used to accommodate the installation cavity of blower mechanism and power storage mechanism;The power storage mechanism is installed in the rear end of installation cavity;The blower mechanism is installed in the front end of the installation cavity, and its air outlet is towards the exhaust frame;The outer wall of the shell is provided with at least one hanging buckle;The power storage mechanism is electrically connected with the blower mechanism;The hanging buckle design of shell outer wall is realized in multiple scenarios Fixed, without occupying hand, solve the problem that traditional handheld fan affects operation, adapt to the work needs of outdoor population such as construction worker, sanitation worker.

Description

Technical Field

[0001] This utility model relates to the field of fan equipment technology, and more specifically, it relates to a portable waist-mounted fan. Background Technology

[0002] During the hot summer months, construction workers, sanitation workers, fishermen, farmers, steelworkers, and other groups need to work outdoors for extended periods. Among existing cooling methods, traditional handheld fans occupy the hands, hindering work operations; desktop fans are not portable and cannot be moved with the body; and ordinary neck fans have weak airflow and limited cooling effect.

[0003] Meanwhile, if workers in high-temperature environments do not take effective measures to prevent heatstroke and cool down, they will not only feel extremely uncomfortable, but also be prone to heatstroke and other health problems, which will directly lead to a decline in work efficiency. In addition, some existing portable fans lack power display function, so users cannot predict the battery life, and the wind speed adjustment is inconvenient and difficult to adapt to the heat dissipation needs of different scenarios. Therefore, a new convenient waist-mounted fan is proposed. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a convenient waist-mounted fan to solve the technical problems existing in the background technology.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a portable waist-mounted fan, comprising: a housing, a blower mechanism, a power storage mechanism, and an exhaust hood; the exhaust hood is provided with an exhaust frame; the exhaust hood is detachably installed on one side of the front end of the housing to form a mounting cavity for accommodating the blower mechanism and the power storage mechanism; the power storage mechanism is installed at the rear end of the mounting cavity; the blower mechanism is installed at the front end of the mounting cavity, and its air outlet faces the exhaust frame; the outer wall of the housing is provided with at least one hook; the power storage mechanism is electrically connected to the blower mechanism.

[0006] Optionally, the exhaust hood is a triangular structure; the assembly angle between the exhaust frame and the outer shell is 30°-45°.

[0007] Optionally, the blower mechanism includes: a motor, a motor base, and a fan blade structure; the motor base is installed in the mounting cavity at an angle parallel to the exhaust frame; the motor is installed inside the motor base, and its output end passes through the motor base and is fixedly connected to the fan blade structure.

[0008] Optionally, a circuit board is provided inside the mounting cavity; the circuit board can be electrically connected to the motor and the energy storage mechanism respectively; a gear switch is provided on the circuit board; a mounting part is provided on the exhaust hood; the gear switch protrudes from the side wall of the mounting part.

[0009] Optionally, the energy storage mechanism includes: an assembly housing and at least one battery; the assembly housing is installed inside the mounting cavity; the battery is installed inside the assembly housing; and the battery is electrically connected to the circuit board.

[0010] Optionally, the mounting portion is provided with a charging port for charging the battery and a power indicator light strip; the power indicator light strip is electrically connected to the battery through the circuit board.

[0011] Optionally, the sidewalls of the outer casing are provided with a hollow structure.

[0012] This utility model features a hook design on the outer wall of the shell for secure mounting in various scenarios, eliminating the need for handheld operation and solving the problem of traditional handheld fans interfering with work. It is suitable for the work needs of outdoor workers such as construction workers and sanitation workers. The triangular exhaust hood conforms to the curve of the human waist, and the lightweight shell and hollow structure further reduce weight, resulting in no noticeable burden even after long-term wear. The detachable assembly makes it easy to store and carry. The 30°-45° assembly angle between the exhaust frame and the shell, combined with the guiding effect of the triangular exhaust hood, ensures that the airflow accurately covers the core heat dissipation areas such as the chest, abdomen, and neck. Compared with the dispersed airflow of ordinary neck fans, the heat dissipation is more targeted. The speed switch protrudes from the side wall of the mounting part, supporting blind operation to adjust the wind speed, which is suitable for quick operation when workers are wearing gloves or busy. The power indicator light bar intuitively reflects the remaining power, solving the problem of existing portable fans not having a predictive power supply. The shell is made of impact-resistant engineering plastic PC material, and with the grid protective structure of the exhaust frame, it can resist minor collisions and foreign object intrusion during outdoor work, extending the product's service life and making it suitable for harsh working environments. Attached Figure Description

[0013] Figure 1 This is an assembly drawing of this utility model; Figure 2 This is a schematic diagram showing the structural relationship between the blower mechanism and the exhaust hood during the assembly of this utility model; Figure 3 This is a schematic diagram of the structure of the outer shell and the energy storage mechanism in this utility model.

[0014] In the diagram: 1. Outer shell; 2. Blower mechanism; 21. Motor mount; 3. Energy storage mechanism; 31. Assembly box; 4. Exhaust hood; 5. Exhaust frame; 6. Hook; 7. Power indicator light strip; 8. Gear switch; 9. Charging port; 10. Hollow structure. Detailed Implementation

[0015] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0016] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0017] In this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] like Figure 1-3As shown, this utility model provides a portable waist-mounted fan, including: a housing 1, a blower mechanism 2, a power storage mechanism 3, and an exhaust hood 4; the exhaust hood 4 is provided with an exhaust frame 5; the exhaust hood 4 is detachably installed on one side of the front end of the housing 1 to form a mounting cavity for accommodating the blower mechanism 2 and the power storage mechanism 3; the power storage mechanism 3 is installed at the rear end of the mounting cavity; the blower mechanism 2 is installed at the front end of the mounting cavity, and its air outlet faces the exhaust frame 5; the outer wall of the housing 1 is provided with at least one hook 6; the power storage mechanism 3 is electrically connected to the blower mechanism 2.

[0020] In this embodiment, as Figure 1-3 As shown, the outer shell 1 is made of impact-resistant engineering plastic PC injection molding, combining lightweight and impact resistance. Two hooks 6 are symmetrically arranged on its outer wall. The hooks 6 adopt an elastic snap-fit ​​structure, which can be directly fastened to the worker's belt, the edge of their workwear pocket, or the safety helmet strap, achieving hand-held fixation. The exhaust hood 4 is detachably installed on one side of the front end of the outer shell 1 via a snap-fit ​​structure or screws, forming a closed mounting cavity with the inner wall of the outer shell 1. This mounting cavity is designed according to functional partitions, with a reserved mounting position for the energy storage mechanism 3 at the rear and space for the air blower mechanism 2 at the front, ensuring a compact layout of components and preventing interference. The energy storage mechanism 3 and the air blower mechanism 2 are electrically connected via wires. After connection, the airflow generated by the air blower mechanism 2 is directionally blown out through the exhaust frame 5 on the exhaust hood 4, completing heat dissipation.

[0021] Furthermore, the exhaust hood 4 is a triangular structure exhaust hood 4; the assembly angle between the exhaust frame 5 and the outer shell 1 is 30°-45°.

[0022] In this embodiment, as Figure 1-2 As shown, the exhaust hood 4 adopts a triangular structure design, and its outline conforms to the curve of the human waist, avoiding hard compression with clothing or body when worn; the assembly angle between the exhaust frame 5 and the outer shell 1 is set at 35 degrees. This angle has been ergonomically tested and can make the blown airflow accurately target the chest, abdomen and neck area of ​​the operator, avoiding airflow deviation that would lead to heat dissipation failure; the slanted side design of the triangular exhaust hood 4 also increases the exhaust area. Combined with the grid structure of the exhaust frame 5, it can ensure smooth airflow and prevent foreign objects from entering the installation cavity and damaging internal components.

[0023] Furthermore, the blower mechanism 2 includes: a motor, a motor base 21, and a fan blade structure; the motor base is installed in the mounting cavity at an angle parallel to the exhaust frame 5; the motor is installed inside the motor base 21, and its output end passes through the motor base 21 and is fixedly connected to the fan blade structure.

[0024] In this embodiment, as Figure 1-2As shown, the blower mechanism 2 consists of a motor, a motor mount 21, and a fan blade structure. The motor is a DC brushless motor, which has the advantages of low power consumption, high speed, and quiet operation. The motor mount 21 is made of impact-resistant engineering plastic PC injection molding and is fixed in the preset slot at the front end of the mounting cavity by bolts. The installation angle of the motor mount 21 is consistent with that of the exhaust frame 5, ensuring that the end face of the motor mount 21 is completely parallel to the exhaust frame 5. The motor is embedded in the motor mount 21 and fixed by a buckle. After the motor output shaft passes through the through hole in the center of the motor mount 21, it is fixed to the fan blade structure by a key connection. The fan blade is made of impact-resistant engineering plastic PC injection molding and has a streamlined design. When rotating, it can generate a strong airflow to meet the rapid heat dissipation requirements in outdoor high-temperature environments.

[0025] Furthermore, a circuit board is provided inside the mounting cavity; the circuit board can be electrically connected to the motor and the energy storage mechanism 3 respectively; a gear switch 8 is provided on the circuit board; a mounting part is provided on the exhaust hood 4; the gear switch 8 protrudes from the side wall of the mounting part.

[0026] In this embodiment, as Figure 1-3 As shown, a circuit board mounting slot is provided inside the mounting cavity near the side wall of the outer shell 1. The circuit board is fixed in the slot with screws. Its input end is electrically connected to the energy storage mechanism 3, and its output end is connected to the motor's wiring terminal to realize power transmission and control. The circuit board integrates a speed regulation module with 9 gears, corresponding to the 9-gear adjustment function of the gear switch 8. One side of the exhaust hood 4 extends to form a protruding mounting part. The gear switch 8 is fixed to the circuit board by welding, and its operating end protrudes from the side wall of the mounting part, which makes it convenient for operators to blindly adjust the wind speed while wearing the fan without removing it.

[0027] Furthermore, the energy storage mechanism 3 includes: an assembly housing and at least one battery; the assembly housing 31 is installed in the mounting cavity; the battery is installed in the assembly housing 31; and the battery is electrically connected to the circuit board.

[0028] In this embodiment, as Figure 1-3 As shown, the energy storage mechanism 3 includes an assembly box 31 and a lithium battery, which is fixed in the limiting groove at the rear end of the mounting cavity by screws. The inner side of the assembly box 31 is provided with a slot that matches the size of the lithium battery. After the lithium battery is inserted into the slot, it is fixed by cable ties to prevent the battery from shifting due to vibration during operation. The positive and negative terminals of the lithium battery are connected to the power interface on the circuit board through wires to form a stable power supply circuit.

[0029] Furthermore, the mounting portion is provided with a charging port 9 for charging the battery and a power indicator light strip 7; the power indicator light strip 7 is electrically connected to the battery through the circuit board.

[0030] In this embodiment, as Figure 1-2As shown, the surface of the mounting part has a long groove, and the charging interface and the power indicator light strip 7 are integrated into the groove. The charging port 9 supports fast charging, which makes it convenient for operators to quickly replenish the power through a power bank or the construction site distribution box. The power indicator light strip 7 has red, yellow and green colors, which correspond to the three states of low power, medium power and full power, respectively. The light strip is electrically connected to the circuit board through wires to provide real-time feedback on the remaining power of the battery and avoid the operation being affected by sudden power outages.

[0031] Furthermore, the side walls of the outer shell 1 are provided with hollow structures 10.

[0032] In this embodiment, as Figure 1-3 As shown, the outer shell 1 has evenly distributed hollow structures 10 on both sides and the rear end. The hollow areas adopt a honeycomb design, which not only ensures air circulation in the installation cavity and provides sufficient air intake for the blower mechanism 2, but also reduces the overall weight of the fan and reduces the burden on the waist when wearing it.

[0033] This utility model discloses a portable waist-mounted fan. The outer shell features a hook design for secure mounting in various scenarios, eliminating the need for handheld operation and solving the problem of traditional handheld fans hindering work. It is suitable for the work needs of outdoor workers such as construction workers and sanitation workers. The triangular exhaust hood conforms to the curve of the human waist, and the lightweight shell and hollow structure further reduce weight, resulting in no noticeable burden even after prolonged wear. The detachable assembly facilitates storage and portability. The 30°-45° assembly angle between the exhaust frame and the shell, combined with the guiding effect of the triangular exhaust hood, ensures precise airflow coverage of key heat dissipation areas such as the chest, abdomen, and neck. Compared to the dispersed airflow of ordinary neck-mounted fans, this provides more targeted heat dissipation. The speed switch protrudes from the side wall of the mounting part, supporting blind operation for adjusting the wind speed, suitable for quick operation by workers wearing gloves or in busy situations. The power indicator light clearly shows the remaining battery level, solving the problem of existing portable fans lacking battery life prediction. The shell is made of impact-resistant engineering plastic PC injection molding, and the grid protective structure of the exhaust frame can resist minor collisions and foreign object intrusion during outdoor work, extending the product's lifespan and making it suitable for harsh working environments.

[0034] 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 portable waist-mounted fan, characterized in that, include: The device comprises a housing, a blower mechanism, a power storage mechanism, and an exhaust hood; the exhaust hood is provided with an exhaust frame; the exhaust hood is detachably installed on one side of the front end of the housing to form a mounting cavity for accommodating the blower mechanism and the power storage mechanism; the power storage mechanism is installed at the rear end of the mounting cavity; the blower mechanism is installed at the front end of the mounting cavity, with its air outlet facing the exhaust frame; the outer wall of the housing is provided with at least one hook; the power storage mechanism is electrically connected to the blower mechanism.

2. A portable waist-mounted fan according to claim 1, characterized in that, The exhaust hood is a triangular structure; the assembly angle between the exhaust frame and the outer shell is 30°-45°.

3. A portable waist-mounted fan according to claim 2, characterized in that, The blower mechanism includes: a motor, a motor base, and a fan blade structure; the motor base is installed in the mounting cavity at an angle parallel to the exhaust frame; the motor is installed inside the motor base, and its output end passes through the motor base and is fixedly connected to the fan blade structure.

4. A portable waist-mounted fan according to claim 2, characterized in that, A circuit board is provided inside the mounting cavity; the circuit board can be electrically connected to the motor and the energy storage mechanism respectively; a gear switch is provided on the circuit board; a mounting part is provided on the exhaust hood; the gear switch protrudes from the side wall of the mounting part.

5. A portable waist-mounted fan according to claim 4, characterized in that, The energy storage mechanism includes: an assembly housing and at least one battery; the assembly housing is installed inside the mounting cavity; the battery is installed inside the assembly housing; and the battery is electrically connected to the circuit board.

6. A portable waist-mounted fan according to claim 5, characterized in that, The mounting section is provided with a charging port for charging the battery and a power indicator light strip; the power indicator light strip is electrically connected to the battery through the circuit board.

7. A portable waist-mounted fan according to claim 1, characterized in that, The side walls of the outer shell are all provided with a hollow structure.

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