Ventilation structure for hair care appliance

Abstract

The utility model discloses a ventilation structure for a hair care appliance, which comprises a shell, air guide pieces and a connector, and the air guide pieces comprise a front air guide piece and a rear air guide piece; the front air guide piece and the rear air guide piece are installed on the front section and the rear section in the shell respectively, and the front air guide piece and the rear air guide piece are connected end to end to divide an air channel in the shell into at least two sections. The front air guide piece and the inner wall of the shell are separated into a plurality of front air outlet channels through the main body outer wall and the separation pieces, and the rear air guide piece and the inner wall of the shell are separated into a plurality of rear air outlet channels through the main body outer wall and the separation pieces; a center hole channel is formed in the center of the rear air guide piece, all the front air outlet channels are communicated with the center hole channel, and the center hole channel and all the rear air outlet channels are communicated with the main machine body through connectors. Therefore, the requirement for the assembly precision of the air guide piece is lowered while more uniform front and back air outlet is achieved, and the tolerance is improved. And the adjacent air outlet channels are separated from each other, and no communication space is reserved, so that air flows cannot crossflow mutually.

Description

Technical Field

[0001] This utility model relates to the field of hair care tools, and in particular to a ventilation structure for hair care appliances, such as hair care combs. Background Technology

[0002] Hair care tools such as hair combs are widely used in the hair care industry. These tools typically have a nozzle (air nozzle) connected to the air outlet, primarily used for focusing and guiding airflow. The nozzle is roughly cylindrical in shape, hollow inside forming an air inlet channel and an air vent connected to the channel. The nozzle also has several air outlet holes connected to the air inlet channel. This traditional nozzle structure generally lacks a flow distribution mechanism; the airflow entering the air inlet channel is pushed forward, resulting in a smaller or even no airflow near the air vent, while the airflow further away is larger, causing uneven airflow. To address this, various ventilation structures have been designed to achieve more even airflow from these hair care tools. For example, Chinese invention patent application CN202310502726.4 discloses a uniformly guiding airflow comb structure. This structure uses multiple gradually changing guide vanes to divert the airflow entering the guiding channel as it passes through each vane, resulting in uniform airflow volume and velocity at each outlet. This solves the problem of low airflow near the inlet and high airflow further away in traditional designs. However, this solution is structurally complex, connecting the guide vanes into a single unit via a guide frame. This necessitates high precision in installation dimensions and poor tolerance. Furthermore, the connecting wings and guide frame do not separate adjacent outlet spaces within each section, causing internal airflow to cross-flow and affecting the uniformity of the airflow. Utility Model Content

[0003] This utility model addresses the shortcomings of existing technologies by providing a ventilation structure for hair care devices that features a more rational structural design, lower assembly requirements, better tolerance, and more uniform airflow.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a ventilation structure for a hair care device, comprising a shell, an air guide, and a connector. The shell has a hollow structure forming multiple air outlets. The air guide is disposed in the shell, and the connector is connected to the tail end of the shell for connecting to the main body. The air guide includes at least two sections with a split structure, a front section being the front air guide and a rear section being the rear air guide. The front air guide is installed in the front section inside the shell, and the rear air guide is installed in the rear section inside the shell. The front and rear air guides are connected end to end, dividing the internal air duct of the shell into at least two sections. The outer wall of the front air guide is provided with... Several outwardly protruding isolation plates are provided, each of which is sealed and connected to the inner wall of the housing. The front section of the internal air duct of the housing is divided into several mutually isolated front air outlet channels by the outer wall of the main body of the front air guide, the inner wall of the housing, and the isolation plates. Several outwardly protruding isolation plates are provided on the outer wall of the rear air guide, each of which is sealed and connected to the inner wall of the housing. The rear section of the internal air duct of the housing is divided into several mutually isolated rear air outlet channels by the outer wall of the main body of the rear air guide, the inner wall of the housing, and the isolation plates. The rear air guide has a central channel that runs through the front and rear. Each front air outlet channel is connected to this central channel. The central channel and each rear air outlet channel are connected to the main body through connectors.

[0005] Furthermore, the air guide includes two parts, namely a front air guide and a rear air guide. The rear air guide has at least two plug-in parts at its front end, and the front air guide has pins that mate with the plug-in parts at its rear end. The front air guide and the rear air guide are connected and fixed by inserting the pins into the plug-in parts.

[0006] Furthermore, the housing includes an outer sleeve and an inner frame. The sleeve is fitted onto the outside of the inner frame, and the isolation plate of the front air guide and the partition plate of the rear air guide are respectively sealed and connected to the inner wall of the inner frame.

[0007] Furthermore, the front end of the front air guide is locked and fixed to the inner frame, the rear end of the inner frame is locked and fixed to the connector, and the rear air guide is inserted and fixed to the connector through its partition plate.

[0008] Furthermore, both the front and rear air guides have a structure that is wider at the front and narrower at the rear. The main body of the front air guide is a sealed structure, while the center of the main body of the rear air guide is a central channel that is wider at the front and narrower at the rear.

[0009] Furthermore, the plug portion is aligned with the isolation plate of the front air guide, and the plug pin is located at the tail end of the isolation plate opposite to the plug portion.

[0010] Preferably, the front air guide has 2-8 baffles, and the rear air guide has 2-8 baffles.

[0011] Furthermore, the number of partition plates on the front air guide is the same as the number of partition plates on the rear air guide, and they are aligned front to back.

[0012] Furthermore, an end cap is provided at the front end of the housing, and the end cap is fastened to the front air guide component by a snap fastener; a decorative cover is provided at the center of the front end of the end cap.

[0013] Furthermore, several insertion slots are provided at the tail of the connector, and the main body is inserted into the insertion slots through the insertion pins to form a detachable assembly structure with the connector.

[0014] This invention utilizes a segmented structure where the air guide components are independent of each other. The air duct is divided into at least two sections, front and rear, through a front-to-back assembly of each section. This achieves more uniform airflow while reducing the precision requirements for the air guide components' assembly. Even with significant dimensional differences, stable assembly is achieved, improving tolerance. Furthermore, the isolation plates and partitions of the front and rear air guide components are sealed and connected to the inner frame, separating adjacent air outlet channels without any connecting space. This prevents airflow from flowing between them, further enhancing the uniformity of airflow. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is an exploded structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the first longitudinal section of this utility model;

[0018] Figure 4 This is a schematic diagram of the second longitudinal section of the present invention;

[0019] Figure 5 This is a side view of the present invention;

[0020] Figure 6 This is a cross-sectional view of the present invention;

[0021] Figure 7 This is a structural diagram showing the front and rear air guides and end caps in their assembled state.

[0022] Figure 8 This is a structural schematic diagram of the front and rear air guides and end caps assembled from another angle.

[0023] Figure 9 This is a schematic diagram showing the disassembled state of the front and rear air guide components;

[0024] Figure 10 This is a longitudinal sectional view of the present invention assembled with the main body.

[0025] In the diagram, 1 is the sleeve, 2 is the inner frame, 21 is the comb, 3 is the rear air guide, 31 is the partition plate, 32 is the rear air outlet channel, 33 is the central channel, 34 is the plug-in part, 4 is the front air guide, 41 is the isolation plate, 42 is the front air outlet channel, 43 is the pin, 5 is the connector, 51 is the plug slot, 6 is the end cover, 61 is the protrusion, 7 is the decorative cover, and 8 is the main body. Detailed Implementation

[0026] In this embodiment, refer to Figures 1-10 The ventilation structure for the hair care device includes a shell, an air guide, and a connector 5. The shell has a hollow structure forming multiple air outlets. The air guide is disposed within the shell. The connector 5 is connected to the tail end of the shell for connecting the main body 8. The shell includes an outer sleeve 1 and an inner frame 2. The sleeve 1 is fitted onto the outside of the inner frame 2. A comb 21 is disposed on the inner frame 2, and the comb 21 extends from the sleeve 1 for combing hair. The air guide includes at least two separate sections, a front air guide 4 and a rear air guide 3. The front air guide 4 is installed in the front section inside the inner frame 2, and the rear air guide 3 is installed in the rear section inside the inner frame 2. The front air guide 4 and the rear air guide 3 are connected end to end, dividing the internal air duct of the inner frame 2 into at least two sections. The outer wall of the front air guide 4... The upper part is provided with several outwardly protruding isolation plates 41, each isolation plate 41 is sealed and connected to the inner wall of the inner frame 2. The front section of the internal air duct of the inner frame 2 is divided into several mutually isolated front air outlet channels 42 by the outer wall of the main body of the front air guide 4, the inner wall of the inner frame 2 and the isolation plates 41. The outer wall of the rear air guide 3 is provided with several outwardly protruding isolation plates 31, each isolation plate 31 is sealed and connected to the inner wall of the inner frame 2. The rear section of the internal air duct of the inner frame 2 is divided into several mutually isolated rear air outlet channels 32 by the outer wall of the main body of the rear air guide 3, the inner wall of the inner frame 2 and the isolation plates 31. The rear air guide 3 has a central channel 33 that runs through the front and rear. Each front air outlet channel 42 is connected to the central channel 33. The central channel 33 and each rear air outlet channel 32 are connected to the main body 8 through the connector 5. The air blown out by the main body 8 enters the rear air outlet channel 32 and the central channel 33 through the connector 5. The air entering the rear air outlet channel 32 is evenly blown out through the air outlet holes at the rear of the inner frame 2 and the sleeve 1. The air entering the central channel 33 continues forward into the front air outlet channel 42, and then is evenly blown out through the air outlet holes at the front of the inner frame 2 and the sleeve 1. Figure 3 As shown.

[0027] At least two plug-in portions 34 are provided at the front end of the rear air guide 3, and a pin 43 that matches the plug-in portion 34 is provided at the rear end of the front air guide 4. The front air guide 4 and the rear air guide 3 are connected and fixed by inserting the pin 43 into the plug-in portion 34.

[0028] The front end of the front air guide 4 is locked and fixed to the inner frame 2, the rear end of the inner frame 2 is locked and fixed to the connector 5, and the rear air guide 3 is inserted and fixed to the connector 5 through its partition plate 31.

[0029] Both the front air guide 4 and the rear air guide 3 have a structure that is thicker at the front and thinner at the back, so that the front air outlet channel 42 and the rear air outlet channel 32 gradually become smaller towards the front. The main body of the front air guide 4 has a sealed structure, so the air cannot pass through the front air guide 4 and can only pass through the front air outlet channel 42. The main body of the rear air guide 3 has a central hole 33 that is wider at the front and narrower at the back, which facilitates the diffusion of the air and blows it to each front air outlet channel 42.

[0030] The plug portion 34 includes two locations, which are respectively aligned with two of the isolation plates 41 of the front air guide 4, and the plug pin 43 is located at the tail end of the isolation plate 41 opposite to the plug portion 34.

[0031] The front air guide 4 has 2-8 partition plates 41, and the rear air guide 3 has 2-8 partition plates 31. The number of partition plates 41 on the front air guide 4 and the number of partition plates 31 on the rear air guide 3 are the same, for example, 4 each, and they are aligned front to back.

[0032] An end cover 6 is provided at the front end of the inner frame 2 and the sleeve 1. The end cover 6 is fastened to the front air guide 4 by a snap fastener. A decorative cover 7 is provided at the center of the protrusion 61 at the front end of the end cover 6.

[0033] Several insertion slots 51 are provided at the tail of the connector 5. The main body 8 is inserted into the insertion slots 51 through the insertion pins to form a detachable assembly structure with the connector. This allows for the replacement of main bodies 8 with different functions to meet different usage needs.

[0034] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.

Claims

1. A ventilation structure for a hair care device, comprising a housing, an air guide, and a connector, wherein the housing has a hollow structure forming multiple air outlets, the air guide is disposed within the housing, and the connector is mated to the tail end of the housing for connecting to the main body, characterized in that: The air guide component includes at least two separate sections, front and rear. The front air guide component is installed in the front section inside the housing, and the rear air guide component is installed in the rear section inside the housing. The front and rear air guide components are connected end to end, dividing the internal air duct of the housing into at least two sections. The outer wall of the front air guide component is provided with several outwardly protruding isolation plates, each isolation plate being sealed and connected to the inner wall of the housing. The outer wall of the main body of the front air guide component, the inner wall of the housing, and the isolation plates divide the front section of the internal air duct of the housing into several mutually isolated front air outlet channels. The outer wall of the rear air guide component is provided with several outwardly protruding partition plates, each partition plate being sealed and connected to the inner wall of the housing. The outer wall of the main body of the rear air guide component, the inner wall of the housing, and the partition plates divide the rear section of the internal air duct of the housing into several mutually isolated rear air outlet channels. The rear air guide component has a central through-hole, and each front air outlet channel is connected to this central through-hole. The central through-hole and each rear air outlet channel are connected to the main body through connectors.

2. The ventilation structure for hair care appliances according to claim 1, characterized in that: The air guide includes a front air guide and a rear air guide. The rear air guide has at least two plug-in parts at its front end, and the front air guide has pins that match the plug-in parts at its rear end. The front air guide and the rear air guide are connected and fixed by inserting the pins into the plug-in parts.

3. The ventilation structure for hair care appliances according to claim 1, characterized in that: The housing includes an outer sleeve and an inner frame. The sleeve is fitted onto the outside of the inner frame. The isolation plate of the front air guide and the partition plate of the rear air guide are respectively sealed and connected to the inner wall of the inner frame.

4. The ventilation structure for hair care appliances according to claim 3, characterized in that: The front end of the front air guide is locked and fixed to the inner frame, the rear end of the inner frame is locked and fixed to the connector, and the rear air guide is inserted and fixed to the connector through its partition plate.

5. The ventilation structure for a hair care appliance according to claim 1, characterized in that: Both the front and rear air guides have a structure that is wider at the front and narrower at the back. The main body of the front air guide is a sealed structure, while the main body of the rear air guide has a central channel that is wider at the front and narrower at the back.

6. The ventilation structure for hair care appliances according to claim 2, characterized in that: The plug portion is aligned with the isolation plate of the front air guide, and the plug pin is located at the tail end of the isolation plate opposite to the plug portion.

7. The ventilation structure for hair care appliances according to claim 1, characterized in that: The front air guide has 2-8 baffles, and the rear air guide has 2-8 baffles.

8. The ventilation structure for a hair care appliance according to claim 1 or 7, characterized in that: The number of partition plates on the front air guide is the same as the number of partition plates on the rear air guide, and they are aligned front to back.

9. The ventilation structure for a hair care appliance according to claim 1, characterized in that: An end cap is provided at the front end of the housing, and the end cap is fastened to the front air guide component by a snap fastener; a decorative cover is provided at the center of the front end of the end cap.

10. The ventilation structure for a hair care appliance according to claim 1, characterized in that: Several insertion slots are provided at the tail of the connector. The main body is inserted into the insertion slots through the insertion pins to form a detachable assembly structure with the connector.

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