Convenient-to-adjust neck-hanging fan for coal miner

Abstract

The utility model discloses a coal miner's neck-hanging fan convenient to adjust relates to fan technical field, including the two casing, left and right symmetry distribution, the upper end of two casing is equipped with a plurality of wind gap, the end of two casing close to each other is equipped with through slot, and the through slot is equipped with a plurality of wind gap. A second rotating block is mounted at the right end of the shell on the left side, a rotating shaft is fixedly arranged in the second rotating block in a sleeving manner, first rotating blocks are movably connected to the upper end and the lower end of the second rotating block, and the two first rotating blocks are fixedly connected to the left end of the shell on the right side; and the rotating shaft is movably inserted into the two first rotating blocks. The angle between the outer shells can be adjusted through the cooperation of the adjusting component, the first rotating block and the second rotating block, the requirements of most users are met, effective cooling is guaranteed, and comfort is improved.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, and in particular to a neck-hanging fan for coal miners that is easy to adjust. Background Technology

[0002] In recent years, people have increasingly pursued a more convenient lifestyle. To meet the demand for fans during outdoor activities or other life scenarios, various portable fans, such as neckband fans, have emerged on the market. The advent of neckband fans has solved the limitations of handheld fans. Whether for sports, outdoor activities, or office use, neckband fans can free up users' hands, providing a breeze anytime, anywhere without needing to hold the fan.

[0003] The prior art (publication number: CN 212744411 U) discloses a plug-in neck fan, including a bracket and a fan. The bracket has an air duct connected to the fan. The bracket has at least one closed part that blocks the air duct, so that the air duct is partially set on the bracket. The closed part has a plug-in structure that separates the bracket, thereby realizing the assembly and disassembly of the neck fan.

[0004] Although the aforementioned patent allows for disassembly and assembly of the fan by independently setting a plug-in structure on the fan bracket, effectively reducing the size of the neck fan and improving its portability, it has the following drawbacks: the angle between the two air-blowing parts cannot be adjusted during use. Since everyone's body shape is different, a fan with a fixed angle cannot meet the needs of most users, resulting in ineffective cooling or reduced comfort. Further improvements are needed. Therefore, an easily adjustable neck fan for coal miners is proposed. Utility Model Content

[0005] The main purpose of this invention is to provide a neck-mounted fan for coal miners that is easy to adjust, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An easily adjustable neck fan for coal miners includes a housing. Two housings are arranged symmetrically on the left and right sides. Each housing has several air vents at its upper end. Each housing has a through groove at its closest point to the other, and a fan is installed in each of the through grooves. A second rotating block is installed at the right end of the left housing. A rotating shaft is fixedly fitted inside the second rotating block. First rotating blocks are movably connected to the upper and lower ends of the second rotating block. Both first rotating blocks are fixedly connected to the left end of the right housing. The rotating shaft is movably inserted into the two first rotating blocks, and the two housings rotate around the rotating shaft.

[0008] Preferably, an adjustment component is installed at the upper end of the first rotating block on the upper side. The adjustment component is used to fix the angle between the two outer shells. The adjustment component includes a first gear disk, which is installed on the first rotating block on the upper side. A second gear disk is meshed with the upper end of the first gear disk. A spring is fixedly connected to the upper end of the second gear disk. A circular plate is fixedly connected to the upper end of the spring. A flange is provided on the outer surface of the second gear disk.

[0009] Preferably, the upper end of the rotating shaft sequentially passes through the first gear disk and the second gear disk and extends to the upper side of the second gear disk. The circular plate is installed at the upper end of the rotating shaft. The spring is movably sleeved on the upper part of the outer cylindrical surface of the rotating shaft. Several protrusions arranged in a ring array are fixedly sleeved on the upper part of the outer cylindrical surface of the rotating shaft. The protrusions are movably sleeved inside the second gear disk.

[0010] Preferably, a first hollow tube is installed at the lower end of the circular plate, a second hollow tube is movably fitted on the inner cylindrical surface of the first hollow tube, a sealing groove is opened on the inner cylindrical surface of the first hollow tube, a sealing ring is provided in the sealing groove, and the lower end of the second hollow tube is fixedly connected to the upper end of the second gear disc.

[0011] Preferably, the outer shell is a hollow structure.

[0012] Preferably, each of the two outer casings has a cover installed at one end close to the other, and the two covers are located on the left and right sides of the two through slots, respectively.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. By setting up adjustment components, a first rotating block, and a second rotating block to work together, the angle between the outer shells can be adjusted. When the angle needs to be adjusted, pull the second gear plate upward so that the second gear plate is no longer engaged with the first gear plate. Then rotate the second outer shell on the right side to adjust the angle between the two outer shells. This makes it convenient to wear around the neck of users of different body types. At the same time, it allows the air discharged from the vent to blow towards different parts of the user's face, meeting the needs of most users, ensuring effective cooling, and improving comfort.

[0015] 2. By setting up protective components, the spring can be protected. During use, the first and second hollow tubes can prevent external moisture from contacting the spring, preventing the spring from rusting and causing the second gear plate and the first gear plate to not mesh tightly, thus ensuring the elasticity of the spring and allowing the angle between the two outer shells to be fixed and adjusted normally. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the entire structure presented in this embodiment;

[0017] Figure 2 This is a schematic diagram of the partial explosion structure in this embodiment;

[0018] Figure 3 This is a partial structural diagram of this embodiment;

[0019] Figure 4 This is an exploded view of the adjusting component in this embodiment;

[0020] Figure 5 This is a schematic diagram of the structure of the adjusting component in this embodiment;

[0021] Figure 6 This is a schematic diagram of the protective component in this embodiment.

[0022] In the diagram: 1. Outer shell; 2. Rotating shaft; 3. Air vent; 4. Cover; 5. First rotating block; 6. Second rotating block; 7. Adjusting component; 8. Through groove; 9. Fan; 10. Protective component; 21. Protrusion; 71. First gear plate; 72. Second gear plate; 73. Flange; 74. Spring; 75. Circular plate; 101. First hollow tube; 102. Second hollow tube; 103. Sealing groove; 104. Sealing ring. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] like Figures 1-6 As shown, an adjustable neck fan for coal miners includes a housing 1. Two housings 1 are symmetrically arranged. Each housing 1 has several air vents 3 at its upper end. Each housing 1 has a through-slot 8 at its closest point, and a fan 9 is installed in each through-slot 8. The fan 9 is explosion-proof and moisture-proof. In use, the two housings are worn around the neck, and the fan 9 is turned on. The fan draws outside air into the housing 1 and then exhausts it through the air vents 3, blowing air towards the user's head. However, due to differences in body shape, a fixed-angle fan cannot meet the needs of most users, resulting in the exhaust air not being directed to the effective area, thus failing to effectively cool the area or reducing comfort.

[0027] To address the aforementioned issues, a second rotating block 6 is installed at the right end of the left outer shell 1. A rotating shaft 2 is fixedly fitted inside the second rotating block 6. Both the upper and lower ends of the second rotating block 6 are movably connected to first rotating blocks 5. Both first rotating blocks 5 are fixedly connected to the left end of the right outer shell 1. The rotating shaft 2 is movably inserted into the two first rotating blocks 5. The angle between the two outer shells 1 can be adjusted via the rotating shaft 2, making it convenient for users of different body types to wear around their necks. At the same time, the air discharged from the vent 3 can blow towards different parts of the user's face, meeting the needs of most users, ensuring effective cooling, and improving comfort.

[0028] Meanwhile, after the angle between the two outer shells 1 is adjusted, it needs to be fixed to ensure that the wind can blow to the designated position. For this purpose, an adjustment component 7 is installed on the upper end of the first rotating block 5 on the upper side. The angle between the two outer shells 1 is fixed by the adjustment component 7. The adjustment component 7 includes a first gear disk 71, which is installed on the first rotating block 5 on the upper side. The upper end of the first gear disk 71 is meshed with a second gear disk 72. The upper end of the second gear disk 72 is fixedly connected to a spring 74. In the initial state, the spring 74 is in a compressed state. The upper end of the spring 74 is fixedly connected to a circular plate 75. The outer surface of the second gear disk 72 is provided with a flange 73. The upper end of the rotating shaft 2 moves sequentially through the first gear disk 71 and the second gear disk 72 and extends to the upper side of the second gear disk 72. 75 is installed on the upper end of the rotating shaft 2. The spring 74 is movably sleeved on the upper part of the outer cylindrical surface of the rotating shaft 2. Several protrusions 21 arranged in a ring array are fixedly sleeved on the upper part of the outer cylindrical surface of the rotating shaft 2. The protrusions 21 are movably sleeved in the second gear disk 72. The protrusions 21 are used to restrict the second gear disk 72 to only move up and down. After using the adjusting component 7, the second gear disk 72 is pulled upward through the flange 73, so that the second gear disk 72 and the first gear disk 71 are no longer meshed. The spring 74 is further compressed. Then, the outer shell 1 on the right side is rotated to adjust the angle between the two outer shells 1. After the adjustment is completed, the second gear disk 72 is released. The spring 74 drives the second gear disk 72 to move downward through the elastic force, so that the second gear disk 72 and the first gear disk 71 re-mesh, so that the two outer shells 1 cannot rotate.

[0029] In addition, due to the high humidity in the mine, moisture can cause the spring 74 to rust. Therefore, the spring 74 needs to be kept in a sealed environment. For this purpose, a protective component 10 is installed between the circular plate 75 and the second gear disc 72. A first hollow tube 101 is installed at the lower end of the circular plate 75. A second hollow tube 102 is movably fitted onto the inner cylindrical surface of the first hollow tube 101. A sealing groove 103 is formed on the inner cylindrical surface of the first hollow tube 101, and a sealing ring 104 is installed inside the sealing groove 103. The sealing ring 104 is used for... To fill the gap between the second hollow tube 102 and the first hollow tube 101 and further improve the sealing performance, the lower end of the second hollow tube 102 is fixedly connected to the upper end of the second toothed disc 72. During use, the first hollow tube 101 and the second hollow tube 102 can prevent external moisture from contacting the spring 74, and prevent the spring 74 from rusting, which would cause the second toothed disc 72 and the first toothed disc 71 to not mesh tightly. This ensures the elasticity of the spring 74, so that the angle between the two outer shells 1 can be fixed and adjusted normally.

[0030] The outer casing 1 is a hollow structure, and a battery is installed inside the outer casing 1.

[0031] To prevent foreign objects from coming into contact with the fan 9, a cover 4 is installed at the end of each of the two outer casings 1 that is close to each other. The two covers 4 are located on the left and right sides of the two through slots 8, respectively.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An easily adjustable neck fan for coal miners, comprising a housing (1), characterized in that: Two shells (1) are provided and are symmetrically distributed on the left and right. Several air vents (3) are opened at the upper end of each shell (1). A through groove (8) is opened at the end of each shell (1) that is close to each other. A fan (9) is installed in each of the two through grooves (8). A second rotating block (6) is installed at the right end of the left shell (1). A rotating shaft (2) is fixedly fitted inside the second rotating block (6). A first rotating block (5) is movably connected to the upper and lower ends of the second rotating block (6). The two first rotating blocks (5) are fixedly connected to the left end of the right shell (1). The rotating shaft (2) is movably inserted into the two first rotating blocks (5). The two shells (1) rotate around the rotating shaft (2) as the axis.

2. The easily adjustable neck fan for coal miners according to claim 1, characterized in that: An adjustment component (7) is installed on the upper end of the first rotating block (5) on the upper side. The adjustment component (7) is used to fix the angle between the two outer shells (1). The adjustment component (7) includes a first gear disk (71), which is installed on the first rotating block (5) on the upper side. A second gear disk (72) is meshed with the upper end of the first gear disk (71). A spring (74) is fixedly connected to the upper end of the second gear disk (72). A circular plate (75) is fixedly connected to the upper end of the spring (74). A flange (73) is provided on the outer surface of the second gear disk (72).

3. The easily adjustable neck fan for coal miners according to claim 2, characterized in that: The upper end of the rotating shaft (2) sequentially passes through the first gear disk (71) and the second gear disk (72) and extends to the upper side of the second gear disk (72). The circular plate (75) is installed on the upper end of the rotating shaft (2). The spring (74) is movably sleeved on the upper part of the outer cylindrical surface of the rotating shaft (2). Several protrusions (21) arranged in a ring array are fixedly sleeved on the upper part of the outer cylindrical surface of the rotating shaft (2). The protrusions (21) are movably sleeved inside the second gear disk (72).

4. The easily adjustable neck fan for coal miners according to claim 2, characterized in that: The lower end of the circular plate (75) is equipped with a first hollow tube (101), and a second hollow tube (102) is movably sleeved on the inner cylindrical surface of the first hollow tube (101). A sealing groove (103) is opened on the inner cylindrical surface of the first hollow tube (101), and a sealing ring (104) is provided in the sealing groove (103). The lower end of the second hollow tube (102) is fixedly connected to the upper end of the second gear disc (72).

5. The easily adjustable neck fan for coal miners according to claim 1, characterized in that: The outer shell (1) is a hollow structure.

6. The easily adjustable neck fan for coal miners according to claim 1, characterized in that: Each of the two outer shells (1) has a cover (4) installed at one end close to the other, and the two covers (4) are located on the left and right sides of the two through slots (8), respectively.

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