An electric hair dryer
By designing a combination of a smooth filter plate and a cleaning rod in the electric blower, the problem of air inlet blockage in dusty environments is solved, achieving smooth air intake and extended equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI CAREER TECHNICAL COLLEGE
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-23
AI Technical Summary
In dusty environments, the air intake protection structure of existing hair dryers is easily clogged by fine dust, resulting in reduced airflow and weakened airflow, which affects the efficiency and lifespan of the equipment.
An electric hair dryer with a filter plate and a cleaning rod was designed. The filter plate has a smooth surface to reduce dust adhesion, and the cleaning rod is cleaned by a brush. Combined with a limiting mechanism to stabilize the moving rod, it ensures smooth air intake.
It effectively prevents dust blockage, ensures smooth airflow, extends equipment life, and improves efficiency and safety.
Smart Images

Figure CN224386955U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hair dryer technology, and in particular to an electric hair dryer. Background Technology
[0002] Electric hair dryers, as a common drying and styling tool, work by relying on a motor-driven fan to draw in air, which is then heated by a heating element and blown out from the air outlet. To prevent foreign objects (such as hair or large dust particles) from entering the machine and damaging the motor or causing safety hazards, a protective grille or filter is usually installed at the air inlet.
[0003] However, in certain specific operating environments (such as workshops, laboratories, construction sites, and other dusty practical scenarios), the existing air inlet protection structure of hair dryers has significant shortcomings. Fine dust particles can easily penetrate or adhere to the surface and interior of the filter, quickly accumulating and forming blockages. This blockage leads to a significant decrease in airflow, a sharp drop in the hair dryer's efficiency, weakened airflow, and poor drying / styling effects. Furthermore, insufficient airflow can cause poor motor heat dissipation, triggering frequent overheating protection activation and even risking motor burnout, severely impacting the normal use and lifespan of the equipment. Therefore, we propose an electric hair dryer to solve these problems. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an electric hair dryer.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An electric hair dryer includes a handle and a housing. The top of the handle is fixedly connected to the housing, and a connecting sleeve is fixedly connected to the right side of the housing. A fixing ring is inserted inside the connecting sleeve, and a filter plate is fixedly inserted inside the fixing ring. An air inlet is fixedly connected to the right side of the fixing ring, and a circular groove is formed at the center of the air inlet. A second movable rod is inserted inside the circular groove, and a first movable rod is fixedly connected to the left side of the second movable rod. A hole is formed at the center of the filter plate, and the first movable rod passes through and is connected to the hole via a bearing. Fixing rings are symmetrically fixedly fitted on both sides of the surface of the first movable rod, and a cleaning rod is fixedly connected to the top of the fixing ring.
[0007] Preferably, the inner wall of the connecting sleeve is provided with an internal thread, and the outer wall of the fixing ring is provided with an external thread, wherein the internal thread of the inner wall of the connecting sleeve is adapted to the external thread of the outer wall of the fixing ring.
[0008] Preferably, the cleaning rod is provided in two sets, and the surface of the two sets of cleaning rods is provided with brushes, and the brushes abut against the outer walls of both sides of the filter plate.
[0009] Preferably, the inner wall of the circular groove at the center of the air inlet is uniformly provided with limiting grooves, the outer wall of the second movable rod is uniformly provided with embedded grooves, and a limiting pin is inserted into the embedded groove. The other end of the limiting pin is inserted into the limiting groove, and the end of the limiting pin located inside the limiting groove is a semi-circular mechanism.
[0010] Preferably, a spring is fixedly connected to one end of the limiting pin inside the recess, and the end of the spring away from the limiting pin is fixedly connected to the inner wall of the recess.
[0011] Preferably, a lever block is fixedly connected to the right side surface of the second movable rod.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. The filter plate in this device can filter fine dust, and its surface is smoothed (such as electroplating or spraying an oleophobic layer), making it difficult for dust to adhere and easier to be blown away by the airflow or to fall off easily during cleaning. The stubborn stains adhering to the surface of the filter plate can be cleaned by rotating the fixing ring, ensuring smooth air intake, thereby achieving the effect of preventing blockage and extending the life of the blower.
[0014] 2. In this device, the spring pushes the limiting pin into the limiting groove through its own elastic force. The limiting pin can limit the distance between the second movable rod and the air inlet, thereby ensuring the stability of the second movable rod and preventing it from shaking randomly during use, thus assisting the stability of the mechanism during use. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of an electric hair dryer proposed in this utility model;
[0016] Figure 2 This is a three-dimensional structural diagram of an electric hair dryer according to the present invention, showing a cracked shape.
[0017] Figure 3 for Figure 1 A three-dimensional exploded schematic diagram of the fixed ring and the first movable rod structure in the middle;
[0018] Figure 4 for Figure 1 A three-dimensional cross-sectional diagram of the air inlet structure;
[0019] Figure 5 for Figure 1 A three-dimensional exploded schematic diagram of the second movable rod, limit pin, and spring structure.
[0020] In the diagram: 1. Handle; 2. Outer shell; 3. Connecting sleeve; 4. Fixing ring; 5. Filter plate; 6. Air inlet; 7. Pry block; 8. Fixing ring; 9. Cleaning rod; 10. First movable rod; 11. Second movable rod; 12. Limit pin; 13. Spring. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Reference Figure 1-5 An electric hair dryer includes a handle 1 and a housing 2. The top of the handle 1 is fixedly connected to the housing 2, and the right side of the housing 2 is fixedly connected to the connecting sleeve 3. A fixing ring 4 is inserted inside the connecting sleeve 3, and a filter plate 5 is fixedly inserted inside the fixing ring 4. An air inlet 6 is fixedly connected to the right side of the fixing ring 4, and a circular groove is formed at the center of the air inlet 6. A second movable rod 11 is inserted inside the circular groove, and a first movable rod 10 is fixedly connected to the left side of the second movable rod 11. A hole is formed at the center of the filter plate 5, and the first movable rod 10 passes through and is connected to the hole through the hole via a bearing. Fixing rings 8 are symmetrically fixedly fitted on both sides of the surface of the first movable rod 10, and a cleaning rod 9 is fixedly connected to the top of the fixing rings 8.
[0023] Reference Figure 2 It can be seen that the inner wall of the connecting sleeve 3 is provided with an internal thread, and the outer wall of the fixing ring 4 is provided with an external thread. The internal thread of the inner wall of the connecting sleeve 3 and the external thread of the outer wall of the fixing ring 4 are compatible. During use, the internal and external threads can be used together to achieve quick installation and disassembly, which facilitates cleaning of the filter plate 5.
[0024] Reference Figure 3 It can be seen that there are two sets of cleaning rods 9, and the surfaces of the two sets of cleaning rods 9 are equipped with brushes. The brushes abut against the outer walls of both sides of the filter plate 5. During use, the brushes on the outer walls of the cleaning rods 9 abut against the outer walls of the filter plate 5. When the cleaning rods 9 are rotated, the brushes rub against the surface of the filter plate 5, which can achieve the cleaning effect.
[0025] Reference Figure 3 and Figure 4 It can be seen that the inner wall of the circular groove in the center of the air inlet 6 is uniformly provided with limiting grooves, and the outer wall of the second movable rod 11 is uniformly provided with embedded grooves. A limiting pin 12 is inserted into the embedded groove. The other end of the limiting pin 12 is inserted into the limiting groove. The end of the limiting pin 12 located inside the limiting groove is a semi-arc mechanism. During use, the limiting pin 12 can limit the second movable rod 11 and prevent it from shaking.
[0026] Reference Figure 5 It can be seen that the end of the limiting pin 12 located inside the inner groove is fixedly connected to the spring 13, and the end of the spring 13 away from the limiting pin 12 is fixedly connected to the inner wall of the inner groove. During use, the spring 13 can push the limiting pin 12 to reset and insert it into the inner groove to achieve the limiting.
[0027] Reference Figure 4 It can be seen that a lever 7 is fixedly connected to the right side surface of the second movable rod 11. During use, the lever 7 helps to rotate the second movable rod 11 to achieve the transmission function.
[0028] Working principle: When using this utility model, according to the appendix Figure 1 Appendix 2, Appendix Figure 3 Appendix Figure 4 and attached Figure 5 As shown, when the filter plate 5 needs to be cleaned, the operator manually rotates the air inlet 6, which drives the fixing ring 4 to rotate, and removes the fixing ring 4 from the inside of the connecting sleeve 3. After disassembly, the operator puts the disassembled mechanism into the water, fixes the fixing ring 4 with one hand, and rotates the lever 7 with the other hand. The lever 7 rotates, which drives the first movable rod 10 to rotate. The first movable rod 10 rotates, which drives the fixing ring 8 to rotate. The fixing ring 8 rotates, which drives the cleaning rod 9 to rotate. The brush on the surface of the cleaning rod 9 can clean the filter plate 5, and the cleaned impurities float in the water.
[0029] After cleaning, remove the mechanism from the water and rinse it a second time with clean water. After cleaning, let it air dry. After drying, align the fixing ring 4 with the connecting sleeve 3, rotate the fixing ring 4 to reset and achieve a fixed connection. The operation is complete. The above is the complete working principle of this utility model.
[0030] In this utility model, the installation, connection or setting methods of all the components mentioned above are common mechanical methods, and the specific structure, model and coefficient index of all the components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be described in detail.
[0031] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.
[0032] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside, and vertical and horizontal" in the terminology only represent the orientation of the term in its conventional use or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, numerals such as "first," "second," and "third" do not represent specific quantities or orders, but are only used to distinguish names. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
Claims
1. An electric hair dryer, comprising a handle (1) and a housing (2), characterized in that, The top of the handle (1) is fixedly connected to the outer shell (2), and the right side of the outer shell (2) is fixedly connected to the connecting sleeve (3). A fixing ring (4) is inserted inside the connecting sleeve (3), and a filter plate (5) is fixedly inserted inside the fixing ring (4). An air inlet (6) is fixedly connected to the right side of the fixing ring (4), and a circular groove is opened at the center of the air inlet (6). A second movable rod (11) is inserted inside the circular groove, and a first movable rod (10) is fixedly connected to the left side of the second movable rod (11). A hole is opened at the center of the filter plate (5), and the first movable rod (10) passes through and is connected to the hole through a bearing. Fixing rings (8) are symmetrically fixedly fitted on both sides of the surface of the first movable rod (10), and a cleaning rod (9) is fixedly connected to the top of the fixing ring (8).
2. The electric hair dryer according to claim 1, characterized in that, The inner wall of the connecting sleeve (3) is provided with an internal thread, and the outer wall of the fixing ring (4) is provided with an external thread. The internal thread of the inner wall of the connecting sleeve (3) is adapted to the external thread of the outer wall of the fixing ring (4).
3. The electric hair dryer according to claim 1, characterized in that, The cleaning rod (9) is provided in two sets, and the surfaces of the two sets of cleaning rods (9) are provided with brushes, and the brushes abut against the outer walls of both sides of the filter plate (5).
4. An electric hair dryer according to claim 1, characterized in that, The inner wall of the circular groove in the center of the air inlet (6) is uniformly provided with a limiting groove, and the outer wall of the second movable rod (11) is uniformly provided with an embedded groove. A limiting pin (12) is inserted into the embedded groove. The other end of the limiting pin (12) is inserted into the limiting groove. The end of the limiting pin (12) located inside the limiting groove is a semi-arc mechanism.
5. An electric hair dryer according to claim 4, characterized in that, The limiting pin (12) is fixedly connected to a spring (13) at one end inside the inner groove, and the end of the spring (13) away from the limiting pin (12) is fixedly connected to the inner wall of the inner groove.
6. An electric hair dryer according to claim 4, characterized in that, A lever block (7) is fixedly connected to the right side surface of the second movable rod (11).