A hair dryer's duct mechanism

Abstract

This utility model discloses a duct mechanism for a hair dryer, relating to the field of hair dryers. It includes an installation tube, a connecting block fixedly connected to the outer side of the installation tube, a stud fixedly connected to one side of the connecting block, a threaded sleeve provided outside the stud, a short rod fixedly connected to the lower end of the threaded sleeve, a rotating block provided outside the short rod, and a locking rod fixedly connected to the lower end of the rotating block. The advantages of this utility model are: the length of the installation tube can be extended through components such as the stud, threaded sleeve, short rod, rotating block, and connecting plate, thereby expanding the coverage area, avoiding cleaning dead corners, and improving the cleaning effect; the end cap can be quickly installed and removed through components such as the installation block, pressure rod, spring, locking block, and fixing block, allowing for flexible replacement according to actual conditions and reducing the difficulty of replacement.

Description

Technical Field

[0001] This utility model relates to the field of hair dryers, and in particular to a duct mechanism for a hair dryer. Background Technology

[0002] A handheld hair dryer is a lightweight and portable cleaning tool. It is typically small and lightweight, making it easy for users to hold and operate. Its working principle involves using a motor to drive a fan, generating a strong airflow that is then directed outwards through a duct. It has a wide range of applications in cleaning scenarios, such as clearing fallen leaves and dust from roads, debris from factory workshops, and clutter from yards. Its flexibility and efficiency allow it to quickly blow debris to a designated area, facilitating subsequent centralized cleaning and significantly saving manpower and time costs. It is a practical and helpful tool for daily cleaning and maintenance of specific locations. However, in existing technologies, because the length of the air duct of a hair dryer is relatively fixed, it is difficult for the hair dryer to effectively reach areas with complex spatial structures and hidden locations during actual cleaning operations, which can easily create cleaning dead corners and seriously affect the cleaning effect. Utility Model Content

[0003] The purpose of this invention is to provide a duct mechanism for a hair dryer to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a blower duct mechanism, including an installation tube, a connecting block fixedly connected to the outer side of the installation tube, a stud fixedly connected to one side of the connecting block, a threaded sleeve provided outside the stud, a short rod fixedly connected to the lower end of the threaded sleeve, a rotating block provided outside the short rod, a locking rod fixedly connected to the lower end of the rotating block, an adjusting tube provided inside the installation tube, a retaining ring fixedly connected to the outer side of the adjusting tube, a connecting plate fixedly connected to the outer side of the adjusting tube near the retaining ring, and a locking hole provided inside the connecting plate.

[0005] Preferably, an end cap is provided on the left side of the regulating tube, an installation block is fixedly connected to one side of the end cap, a fixing block is fixedly connected to the outer edge of the regulating tube, and a slot is provided on one side of the fixing block.

[0006] Preferably, the mounting block has a connecting post inside, a sliding groove is formed on the outer side of the connecting post, a slider is slidably connected inside the sliding groove, a pressure rod is fixedly connected to one side of the slider, a locking block is fixedly connected to the upper end of the pressure rod, and a spring is provided inside the connecting post.

[0007] Preferably, the internal thread of the sleeve is adapted to the external thread of the stud.

[0008] Preferably, the rotating block is rotatably connected to the screw sleeve via a short rod.

[0009] Preferably, the number of fixing blocks is two sets, and they are symmetrically arranged about the centerline of the regulating tube.

[0010] Preferably, the slider slides within the groove via a pressure rod, a locking block, and a spring.

[0011] Using the above technical solution, by rotating the threaded sleeve, the external thread of the stud causes the sleeve to move the rotating block upwards, while the locking rod slides out of the locking hole, releasing the restriction on the adjusting tube. At this point, the adjusting tube can be pulled to one side to allow it to slide inside the installation tube. After the adjusting tube has moved to the appropriate position, the threaded sleeve is rotated in the opposite direction, pushing the rotating block downwards. The locking rod re-enters the locking hole, re-restricting the adjusting tube and completing the extension operation of the installation tube. The components such as the stud, threaded sleeve, short rod, rotating block, and connecting plate allow for the extension of the installation tube's length, thereby expanding the coverage area, avoiding cleaning dead spots, and improving the cleaning effect.

[0012] Using the above technical solution, by pushing the locking block, the locking block drives the pressure rod to move downward and compresses the spring. At this time, the locking block will disengage from the inside of the slot and pull the end cover to one side. The end cover drives the mounting block to slide out from the inside of the fixing block, realizing the disassembly of the end cover. Similarly, during installation, the mounting block is slid into the inside of the fixing block. When it reaches the preset position, the spring rebounds and pushes the locking block back into the slot, completing the installation of the end cover. In addition, the setting of the slider and the slide groove can also improve the stability of the pressure rod during lifting and lowering. Through the components such as the mounting block, pressure rod, spring, locking block, and fixing block, the end cover can be quickly installed and removed, and can be flexibly replaced according to the actual situation, while also reducing the difficulty of replacement. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the internal structure of the installation pipe of this utility model.

[0015] Figure 3 This is a schematic diagram of the connecting block structure of this utility model.

[0016] Figure 4 This is a schematic diagram of the regulating tube structure of this utility model.

[0017] Figure 5 This is a schematic diagram of the end cap structure of this utility model.

[0018] Figure 6 This is a schematic diagram of the internal structure of the mounting block of this utility model.

[0019] In the diagram: 1. Mounting tube; 2. Connecting block; 3. Stud; 4. Screw sleeve; 5. Short rod; 6. Rotating block; 7. Clamping rod; 8. Retaining ring; 9. Adjusting tube; 10. Connecting plate; 11. Clamping hole; 12. Fixing block; 13. Clamping groove; 14. End cap; 15. Mounting block; 16. Connecting column; 17. Slide groove; 18. Sliding block; 19. Pressure rod; 20. Clamping block; 21. Spring. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] Example 1 Please see Figures 1-6 This utility model provides a technical solution: a blower duct mechanism, including an installation tube 1, a connecting block 2 fixedly connected to the outside of the installation tube 1, a stud 3 fixedly connected to one side of the connecting block 2, a threaded sleeve 4 provided outside the stud 3, a short rod 5 fixedly connected to the lower end of the threaded sleeve 4, a rotating block 6 provided outside the short rod 5, a locking rod 7 fixedly connected to the lower end of the rotating block 6, an adjusting tube 9 provided inside the installation tube 1, a retaining ring 8 fixedly connected to the outside of the adjusting tube 9, a connecting plate 10 fixedly connected to the outside of the adjusting tube 9 near the retaining ring 8, a locking hole 11 opened inside the connecting plate 10, the internal thread of the threaded sleeve 4 is adapted to the external thread of the stud 3, and the rotating block 6 is rotatably connected to the threaded sleeve 4 through the short rod 5.

[0022] Specifically, rotating the threaded sleeve 4 causes the rotating block 6 to move upward under the action of the external thread of the stud 3. The locking rod 7 then slides out of the locking hole 11, releasing the restriction on the adjusting tube 9. At this point, the adjusting tube 9 can be pulled to one side to slide inside the mounting tube 1. After the adjusting tube 9 has moved to the appropriate position, rotating the threaded sleeve 4 in the opposite direction pushes the rotating block 6 downward. The locking rod 7 re-enters the locking hole 11, re-restricting the adjusting tube 9 and completing the extension operation of the mounting tube 1. The components, including the stud 3, threaded sleeve 4, short rod 5, rotating block 6, and connecting plate 10, can extend the length of the mounting tube 1, thereby expanding the coverage area, avoiding cleaning dead spots, and improving the cleaning effect.

[0023] Example 2 Please see Figures 1-6This utility model provides a technical solution: a blower duct mechanism, wherein an end cap 14 is provided on the left side of the adjusting tube 9, an mounting block 15 is fixedly connected to one side of the end cap 14, a fixing block 12 is fixedly connected to the outer edge of the adjusting tube 9, a slot 13 is provided on one side of the fixing block 12, a connecting post 16 is provided inside the mounting block 15, a sliding groove 17 is provided on the outer side of the connecting post 16, a slider 18 is slidably connected inside the sliding groove 17, a pressure rod 19 is fixedly connected to one side of the slider 18, a locking block 20 is fixedly connected to the upper end of the pressure rod 19, a spring 21 is provided inside the connecting post 16, and there are two sets of fixing blocks 12, which are symmetrically arranged about the center line of the adjusting tube 9. The slider 18 slides in the sliding groove 17 through the pressure rod 19, the locking block 20 and the spring 21.

[0024] Specifically, pushing the locking block 20 causes the pressure rod 19 to move downwards and compress the spring 21. At this time, the locking block 20 will disengage from the inside of the slot 13 and pull the end cover 14 to one side. The end cover 14 drives the mounting block 15 to slide out from the inside of the fixing block 12, thus removing the end cover 14. Similarly, during installation, the mounting block 15 is slid into the inside of the fixing block 12. When it reaches the preset position, the spring 21 rebounds and pushes the locking block 20 back into the slot 13, completing the installation of the end cover 14. In addition, the slider 18 and the slide groove 17 can also improve the stability of the pressure rod 19 when it is raised and lowered. Through the components such as the mounting block 15, the pressure rod 19, the spring 21, the locking block 20, and the fixing block 12, the end cover 14 can be quickly installed and removed, and can be flexibly replaced according to the actual situation, while also reducing the difficulty of replacement.

[0025] Working principle: When using this duct, firstly, it needs to be installed onto the output end of the blower using the mounting plate on one side of the mounting tube 1. After installation, the duct can be put into normal use. During use, different types of end caps 14 can be replaced according to actual needs to improve cleaning efficiency. Specifically, push the locking block 20, which drives the pressure rod 19 downward and compresses the spring 21. At this time, the locking block 20 will disengage from the inside of the locking groove 13 and pull the end cap 14 to one side. The end cap 14 drives the mounting block 15 to slide out from the inside of the fixing block 12, thus removing the end cap 14. Similarly, during installation, slide the mounting block 15 along the inside of the fixing block 12. When it reaches the preset position... Spring 21 rebounds and pushes the locking block 20 back into the slot 13, completing the installation of end cap 14. In addition, the slider 18 and the slide groove 17 can also improve the stability of the pressure rod 19 when it is raised and lowered. The end cap 14 can be quickly installed and removed through the components such as mounting block 15, pressure rod 19, spring 21, locking block 20, and fixing block 12, so that it can be flexibly replaced according to the actual situation, and the difficulty of replacement can also be reduced. When it is necessary to extend the mounting tube 1, rotate the screw sleeve 4. Under the action of the external thread of the stud 3, the screw sleeve 4 drives the rotating block 6 to move upward, and the locking rod 7 slides out from the inside of the locking hole 11, releasing the limit on the adjusting tube 9. At this time, the adjusting tube 9 can be pulled to one side to make it slide inside the mounting tube 1. After the adjusting tube 9 is moved to the appropriate position, the screw sleeve 4 is rotated in the opposite direction. The screw sleeve 4 pushes the rotating block 6 to move downward, and the locking rod 7 re-enters the locking hole 11, thereby limiting the adjusting tube 9 again and completing the extension operation of the installation tube 1. The length of the installation tube 1 can be extended by components such as the stud 3, screw sleeve 4, short rod 5, rotating block 6, and connecting plate 10, thereby expanding the coverage area, avoiding the generation of cleaning dead corners, and improving the cleaning effect.

[0026] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A duct mechanism for a hair dryer, comprising an mounting tube (1), characterized in that: A connecting block (2) is fixedly connected to the outside of the mounting tube (1). A stud (3) is fixedly connected to one side of the connecting block (2). A threaded sleeve (4) is provided on the outside of the stud (3). A short rod (5) is fixedly connected to the lower end of the threaded sleeve (4). A rotating block (6) is provided on the outside of the short rod (5). A locking rod (7) is fixedly connected to the lower end of the rotating block (6). An adjusting tube (9) is provided inside the mounting tube (1). A retaining ring (8) is fixedly connected to the outside of the adjusting tube (9). A connecting plate (10) is fixedly connected to the outside of the adjusting tube (9) near the retaining ring (8). A locking hole (11) is opened inside the connecting plate (10).

2. The air duct mechanism of a hair dryer according to claim 1, characterized in that: An end cap (14) is provided on the left side of the regulating tube (9). An installation block (15) is fixedly connected to one side of the end cap (14). A fixing block (12) is fixedly connected to the outer edge of the regulating tube (9). A slot (13) is provided on one side of the fixing block (12).

3. The air duct mechanism of a hair dryer according to claim 2, characterized in that: The mounting block (15) has a connecting post (16) inside, and a sliding groove (17) is provided on the outer side of the connecting post (16). A slider (18) is slidably connected inside the sliding groove (17). A pressure rod (19) is fixedly connected to one side of the slider (18). A locking block (20) is fixedly connected to the upper end of the pressure rod (19). A spring (21) is provided inside the connecting post (16).

4. The air duct mechanism of a hair dryer according to claim 1, characterized in that: The internal thread of the sleeve (4) is adapted to the external thread of the stud (3).

5. The air duct mechanism of a hair dryer according to claim 1, characterized in that: The rotating block (6) is rotatably connected to the screw sleeve (4) via a short rod (5).

6. The air duct mechanism of a hair dryer according to claim 2, characterized in that: The number of fixed blocks (12) is two sets, and they are symmetrically arranged about the center line of the regulating tube (9).

7. The air duct mechanism of a hair dryer according to claim 3, characterized in that: The slider (18) slides in the groove (17) through the pressure rod (19) in conjunction with the locking block (20) and the spring (21).

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