Portable ventilation equipment

Abstract

The utility model provides portable ventilation equipment which comprises a noise reduction shell, a ventilation fan, an air inlet pipe, an exhaust pipe and a plurality of spiral pipelines, and relates to the technical field of ventilation equipment, the design of the noise reduction shell and built-in sound insulation cotton is adopted, the whole ventilation device is designed into a whole, and the portable ventilation equipment is convenient to carry and move; and meanwhile, mechanical vibration and pneumatic noise generated during operation of the ventilation fan are effectively reduced. And through the combination of the spiral pipeline and the diffusion cover, the flowing path of the air flow is prolonged, the air flow is dispersed, and turbulence and impact noise are further reduced. The bent flow guide base arranged in the noise reduction box can guide airflow to pass stably, noise caused by direct impact of the airflow is avoided, uniform discharging of the airflow is achieved through the exhaust outlets in the top and the bottom, and it is ensured that the noise reduction effect is maximized.

Description

Technical Field

[0001] This utility model relates to the field of ventilation equipment technology, and in particular to a portable ventilation device. Background Technology

[0002] In complex environments such as industrial production, construction, and mining operations, workers often face serious problems such as poor air circulation and the accumulation of harmful gases, which directly threaten their health and safety. Ventilation equipment has become an indispensable tool for improving the working environment. However, existing ventilation equipment has many shortcomings in worker environments, mainly in terms of portability, noise, adaptability, energy consumption and maintenance costs, and operational complexity.

[0003] First, existing ventilation equipment is often bulky and heavy, making it inconvenient for workers to carry and move, which greatly reduces work efficiency when frequent changes in work locations are required. Second, the significant noise generated by the equipment during operation not only interferes with normal communication and instruction transmission among workers, but may also cause long-term damage to their hearing, affecting their physical and mental health. Summary of the Invention

[0004] This utility model provides a portable ventilation device, including a noise-reducing shell, a ventilation fan, an air inlet pipe, an air outlet pipe, and multiple spiral pipes. The ventilation fan is fixedly installed inside the noise-reducing shell. The air inlet pipe is fixedly installed through the left side of the noise-reducing shell, and both sides of the air inlet pipe are open structures. The right side of the air inlet pipe is connected to the air inlet of the ventilation fan. The air outlet pipe is fixedly installed inside the noise-reducing shell. The left side of the air outlet pipe is an open structure, and the right side of the air outlet pipe is a closed structure. The left side of the air outlet pipe is connected to the exhaust port of the ventilation fan. One end of each of the multiple spiral pipes is connected to the right side of the air outlet pipe, and the other end of each of the multiple spiral pipes is fixedly installed through the right side of the noise-reducing shell.

[0005] Preferably, a diffusion shroud is fixedly provided at the other end of each of the spiral pipes.

[0006] Preferably, a noise reduction box is fixedly installed on the right side of the noise reduction housing, and a plurality of curved air guide seats are fixedly installed on the left side inside the noise reduction box, with each curved air guide seat corresponding to each diffuser cover. Exhaust vents are provided on the top and bottom of the noise reduction box.

[0007] Preferably, all parts inside the noise-reducing housing, the air inlet pipe, and the air outlet pipe are wrapped with sound-insulating cotton.

[0008] Preferably, a height adjuster is provided at the bottom of the noise-reducing housing, and multiple self-locking casters are fixedly installed at the bottom of the height adjuster.

[0009] This invention provides a portable ventilation device with the following improvements and advantages compared to existing technologies: The device employs a noise-reducing shell and built-in sound-insulating cotton, integrating the entire ventilation unit into a single unit for easy carrying and movement, while effectively reducing mechanical vibration and aerodynamic noise generated during fan operation. The combination of a spiral duct and a diffuser extends the airflow path and disperses the airflow, further reducing turbulence and impact noise. A curved guide seat inside the noise-reducing box guides the airflow smoothly, preventing direct airflow impact and noise generation, and the top and bottom exhaust vents ensure uniform airflow discharge, maximizing noise reduction. Furthermore, the device's height adjuster and self-locking casters allow it to adapt to different working environments, facilitating worker movement and positioning, greatly improving work efficiency, and meeting the needs of frequent worker movement and prolonged use. Attached Figure Description

[0010] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the main structure of the noise-reducing shell of this utility model.

[0013] Explanation of reference numerals in the attached figures:

[0014] 1. Noise-reducing housing; 2. Ventilation fan; 3. Air inlet duct; 4. Air outlet duct; 5. Spiral duct; 6. Diffuser; 7. Noise-reducing box; 8. Curved air guide seat; 9. Air outlet; 10. Height adjuster; 11. Self-locking pulley. Detailed Implementation

[0015] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0017] In the description of this utility model, it should be understood that 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 as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" 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 based on the specific circumstances.

[0018] Please see Figure 1-2 This utility model provides a technical solution: a portable ventilation device, including a noise-reducing shell 1, a ventilation fan 2, an air inlet pipe 3, an exhaust pipe 4, and multiple spiral pipes 5. The ventilation fan 2 is fixedly installed inside the noise-reducing shell 1. The air inlet pipe 3 is fixedly installed through the left side of the noise-reducing shell 1, and both sides of the air inlet pipe 3 are open structures. The right side of the air inlet pipe 3 is connected to the air inlet of the ventilation fan 2. The exhaust pipe 4 is fixedly installed inside the noise-reducing shell 1. The left side of the exhaust pipe 4 is an open structure, and the right side of the exhaust pipe 4 is a closed structure. The left side of the duct 4 is connected to the exhaust port of the ventilation fan 2. Air is drawn in by the ventilation fan, enters the noise reduction housing 1 through the air inlet duct 3, and is then discharged through the exhaust duct 4. One end of multiple spiral pipes 5 is connected to the right side of the exhaust duct 4, and the other end of multiple spiral pipes 5 is fixedly inserted through the right side of the noise reduction housing 1. The air discharged from the exhaust duct 4 is dispersed into each spiral pipe 5. The design of the spiral pipes 5 effectively reduces airflow turbulence and impact noise by extending the airflow path and dispersing the airflow, while improving the uniformity and stability of the airflow.

[0019] Specifically, a diffuser 6 is fixedly installed at the other end of each spiral pipe 5. The diffuser 6 increases the exhaust diameter at the end of the spiral pipe 5. By dispersing and slowing down the high-speed airflow, it reduces the direct impact and turbulence between the airflow and the external air, thereby further reducing the aerodynamic noise during equipment operation and improving the noise reduction effect.

[0020] Specifically, a noise reduction box 7 is fixedly installed on the right side of the noise reduction housing 1, and multiple curved air guide seats 8 are fixedly installed on the left side inside the noise reduction box 7. Each curved air guide seat 8 corresponds to each diffuser 6. Exhaust vents 9 are provided on the top and bottom of the noise reduction box 7. The curved air guide seats 8 can guide the airflow to pass smoothly, avoid the airflow directly impacting and generating noise, and achieve uniform airflow discharge through the exhaust vents 9 at the top and bottom, ensuring the noise reduction effect is maximized.

[0021] Specifically, sound-absorbing cotton is wrapped around all parts inside the noise-reducing housing 1, the air inlet pipe 3, and the air outlet pipe 4. The sound-absorbing cotton improves the overall sound insulation performance of the ventilation device.

[0022] Specifically, a height adjuster 10 is provided on the bottom of the noise reduction housing 1. Multiple self-locking casters 11 are fixedly provided on the bottom of the height adjuster 10. The height adjuster 10 can adjust the height of the ventilation device for easy carrying.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A portable ventilation apparatus, characterized in that Including the noise reduction shell (1), ventilation fan (2), air inlet pipe (3), exhaust pipe (4) and multiple spiral pipe (5), ventilation fan (2) is fixedly arranged in the noise reduction shell (1), the air inlet pipe (3) is fixedly penetrated on the left side of the noise reduction shell (1), and the left and right sides of the air inlet pipe (3) are both open structure, the right side of the air inlet pipe (3) is connected with the air inlet of the ventilation fan (2), the exhaust pipe (4) is fixedly arranged in the noise reduction shell (1), the left side of the exhaust pipe (4) is open structure, and the right side of the exhaust pipe (4) is closed structure, the left side of the exhaust pipe (4) is connected with the air outlet of the ventilation fan (2), one end of multiple spiral pipe (5) is connected with the right side of the exhaust pipe (4), and the other end of multiple spiral pipe (5) is fixedly penetrated on the right side of the noise reduction shell (1), the other end of each spiral pipe (5) is fixedly provided with a diffusion cover (6).

2. A portable ventilation apparatus according to claim 1, wherein The right side of the noise reduction shell (1) is fixedly provided with a noise reduction box (7), a plurality of curved flow seats (8) are fixedly arranged in the left side of the noise reduction box (7), and each curved flow seat (8) corresponds to each diffusion cover (6), the top and bottom of the noise reduction box (7) are provided with exhaust ports (9).

3. A portable ventilation unit according to claim 1, wherein, The noise reduction shell (1) is wrapped with sound insulation cotton.

4. A portable ventilation unit according to claim 1, wherein, The bottom of the noise reduction shell (1) is provided with a height adjuster (10), and the bottom of the height adjuster (10) is fixedly provided with a plurality of self-locking pulleys (11).

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