CN220477102U

CN220477102U - Handheld appliance with double-layer sealing structure

Info

Publication number: CN220477102U
Application number: CN202321960323.6U
Authority: CN
Inventors: 高峰; 陈绳龙; 黄伟
Original assignee: Guangdong Leafless Technology Co ltd
Current assignee: Guangdong Leafless Technology Co ltd
Priority date: 2023-07-25
Filing date: 2023-07-25
Publication date: 2024-02-13
Anticipated expiration: 2033-07-25

Abstract

The utility model discloses a handheld device with a double-layer sealing structure, which comprises: the handle assembly comprises a mounting bracket, a first air channel is arranged in the mounting bracket, the upper end of the mounting bracket is provided with a first mounting opening communicated with the first air channel, and the edge of the first mounting opening extends out of the butt joint edge; the air duct assembly comprises an inner shell, a second air duct is arranged in the inner shell, a second mounting port communicated with the second air duct is formed in the inner shell, a first edge is outwards extended from the edge of the second mounting port, a second edge is arranged on the outer wall of the inner shell, the second edge is arranged around the first edge, a sealing groove is formed between the first edge and the second edge at intervals, and the butt joint edge is closely spliced with the sealing groove in a matched manner; the first edge and the second edge of the sealing groove are respectively and tightly attached to the inner side and the outer side of the butt joint edge of the first mounting opening to form a double-layer sealing surface, so that the mounting bracket and the inner shell are tightly mounted during assembly, and the phenomenon of air leakage is greatly reduced.

Description

Handheld appliance with double-layer sealing structure

Technical Field

The utility model relates to an electric hair drier, in particular to a handheld device with a double-layer sealing structure.

Background

Some existing high-speed hair dryers have motors installed inside a handle sleeve for use. The started motor will generate an air flow with a certain pressure, and the air flow is conveyed to the air duct part along the handle sleeve. The gas is easy to seep outwards at the joint position of the handle sleeve and the air cylinder, so that the pressure of the gas in the high-speed electric hair drier is weakened, and the performance and the wind pressure effect of the electric hair drier are affected.

Disclosure of Invention

The present utility model aims to solve at least one of the above-mentioned technical problems in the related art to some extent. Therefore, the utility model provides a handheld device with a double-layer sealing structure.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a handpiece of a double seal structure according to an embodiment of the first aspect of the present utility model includes:

the handle assembly comprises a mounting bracket, a first air duct is arranged in the mounting bracket, a first mounting opening communicated with the first air duct is formed in the upper end of the mounting bracket, and a butt joint edge extends out of the edge of the first mounting opening;

the dryer subassembly, dryer subassembly includes the inner shell, the inside of inner shell is equipped with the second wind channel, be equipped with on the inner shell with the second installing port of second wind channel intercommunication, the edge of second installing port outwards extends first edge, be equipped with the second edge on the outer wall of inner shell, the second edge encircles first edge sets up, first edge with the interval forms the seal groove between the second edge, butt joint edge with the seal groove cooperation is inseparable pegging graft.

The handheld device with the double-layer sealing structure has at least the following beneficial effects: the first edge and the second edge of the sealing groove are respectively and tightly attached to the inner side and the outer side of the butt joint edge of the first mounting opening to form a double-layer sealing surface, so that the mounting bracket and the inner shell are tightly mounted during assembly, and the phenomenon of air leakage is greatly reduced.

According to some embodiments of the utility model, the seal groove has a draft angle.

According to some embodiments of the utility model, the inner shell comprises a front shell and a rear shell which are mutually butted, a first half hole is formed in the shell wall of the front shell, a second half hole is formed in the shell wall of the rear shell, and the first half hole and the second half hole are matched to form the second mounting opening.

According to some embodiments of the utility model, the first half-hole has a larger pore size than the second half-hole.

According to some embodiments of the present utility model, the first edge corresponding to the second half hole has a direction-changing portion, the direction-changing portion extends gradually in an arc shape toward the end of the first edge corresponding to the first half hole, and the butt joint edge is provided with a bending position corresponding to the direction-changing portion.

According to some embodiments of the utility model, the second edge at the corresponding position of the turning part is provided with a notch.

According to some embodiments of the utility model, the handle assembly is further provided with a toggle switch assembly, the toggle switch assembly comprises a toggle button and a sealing cover plate, the sealing cover plate covers the toggle button, the sealing cover plate is provided with a hydrophobic guide groove, and the hydrophobic guide groove is arranged around the toggle button.

According to some embodiments of the utility model, the handle assembly further comprises a handle sleeve that is sleeved outside the mounting bracket.

According to some embodiments of the utility model, the cartridge assembly further comprises an outer housing, the outer housing being sleeved outside the inner housing.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is an exploded schematic view of the structure of the present utility model;

FIG. 2 is a schematic structural view of a mounting bracket;

FIG. 3 is a schematic structural view of the inner shell;

FIG. 4 is an exploded view of the structure of FIG. 3;

fig. 5 is a schematic structural view of the sealing cover plate.

Reference numerals: a mounting bracket 100; a first air duct 110; a first mounting port 120; abutting the rim 121; bending position 122; an inner case 200; a second air duct 210; a second mounting port 220; a first rim 221; a second rim 222; a seal groove 223; a front case 230; a first half hole 231; a rear case 240; a second half hole 241; a turning portion 242; a notch 243; toggle button 310; a sealing cover plate 320; a hydrophobic guide groove 321; a handle sleeve 400; a housing 500.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

The utility model relates to a handheld device with a double-layer sealing structure, which comprises a handle assembly and a wind barrel assembly.

As shown in fig. 1, 2 and 3, the handle assembly includes a mounting bracket 100 and a handle sleeve 400. The handle sleeve 400 is sleeved outside the mounting bracket 100, and the handle sleeve 400 serves as a protective shell of the mounting bracket 100. The mounting bracket 100 is cylindrical, and has a hollow interior to form a first air duct 110. The first air duct 110 is used for installing a motor therein. The upper end of the mounting bracket 100 is opened as a first mounting port 120. The first mounting port 120 communicates with the first air duct 110. The edge of the first mounting opening 120 extends upwardly to form a butt edge 121. The duct assembly includes an inner case 200, and a second duct 210 is provided inside the inner case 200. The second duct 210 may have a heat generating component and the like mounted therein. The inner case 200 is provided with a second mounting opening 220, and the second mounting opening 220 is communicated with the second air duct 210. A second rim 222 extends downwardly from the edge of the second mounting opening 220. A second rim 222 extends downwardly from a lower portion of the outer wall of the inner shell 200. The second edge 222 is disposed around the first edge 221. The second rim 222 and the first rim 221 have a gap therebetween, which is defined as a sealing groove 223. The shape of the seal groove 223 is oriented to match the shape of the abutting edge 121. When installed, the handle assembly is placed under the air duct assembly, with the first mounting port 120 and the second mounting port 220 facing. The abutting edge 121 is then inserted upwardly into the sealing groove 223, and the abutting edge 121 is tightly connected to the sealing groove 223, thereby connecting the first air duct 110 and the second air duct 210. After the sealing groove 223 is connected with the abutting edge 121, the mounting frame and the inner housing 200 are locked to each other by using screws. The first mounting port 120 and the second mounting port 220 serve as joints of the first air duct 110 and the second air duct 210, the first edge 221 and the second edge 222 of the sealing groove 223 are respectively and tightly attached to the inner side and the outer side of the butt joint edge 121 of the first mounting port 120 to form a double-layer sealing surface, and other sealing fittings such as sealing rings are not needed here, so that the tight mounting during the assembly of the mounting bracket 100 and the inner shell 200 can be ensured, and the phenomenon of air leakage is greatly reduced.

In some embodiments of the present utility model, the seal groove 223 has a draft angle. The inner shell 200 is an injection molding piece, and the draft angle of the sealing groove 223 is set to be convenient for demoulding after molding on one hand, and can be more closely attached to the butt joint edge 121 to prevent air leakage on the other hand.

In some embodiments of the present utility model, as shown in fig. 2, 3 and 4, the inner case 200 includes a front case 230 and a rear case 240. The front case 230 and the rear case 240 are spliced back and forth. Wherein, a first half hole 231 is formed on the wall of the front case 230, and a second half hole 241 is formed on the wall of the rear case 240. After the front shell 230 and the rear shell 240 are spliced, the first half hole 231 and the second half hole 241 are matched and connected to form the second mounting port 220. A portion of the second rim 222 is disposed on the front case 230 around the first half hole 231, and another portion of the second rim 222 is disposed on the rear case 240 around the second half hole 241. After the butt edge 121 is matched with the sealing groove 223, the front shell 230 and the rear shell 240 at the position of the first mounting port 120 can be tightly spliced. Further, the first half hole 231 has a larger diameter than the second half hole 241, so that the second mounting hole 220 is formed in an irregular circular shape. The second half hole 241 has a turning portion 242 at both ends of the first rim 221. The direction changing part 242 extends gradually in an arc shape towards the end part of the first edge 221 corresponding to the first half hole 231, and the first edge 221 corresponding to the first half hole 231 and the first edge 221 corresponding to the second half hole 241 are connected through the direction changing part 242. Correspondingly, the butt joint edge 121 is provided with a bending position 122 corresponding to the shape of the turning part 242. The first half hole 231 and the second half hole 241 with different sizes form the special-shaped second mounting port 220, so that the effects of directional positioning and fool-proof mounting can be achieved when the first mounting port 120 is matched and butted, and the mounting direction between the mounting bracket 100 and the inner shell 200 is prevented from being changed to cause misloading. The second edge 222 at the corresponding position of the turning part 242 is provided with a notch 243. The arrangement of the notch 243 can reduce deformation of the sealing groove 223 during injection molding and cooling, and avoid interference during assembly of the butt edge 121 and the sealing groove 223.

As shown in fig. 1 and 5, a toggle switch assembly is also mounted on the handle assembly. The toggle switch assembly includes a toggle button 310 and a seal cover 320. The sealing cover plate 320 is covered on the toggle button 310. The sealing cover plate 320 is provided with a hydrophobic guide groove 321, and the hydrophobic guide groove 321 is arranged around the toggle button 310. When the hands of a user are wet, the liquid adhered to the toggle switch can flow outwards along the hydrophobic guide groove 321, so that the liquid is prevented from flowing into the toggle switch assembly.

In the description of the present specification, reference to the term "some particular embodiments" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A dual-seal handpiece, comprising:

the handle assembly comprises a mounting bracket (100), a first air duct (110) is arranged in the mounting bracket (100), a first mounting opening (120) communicated with the first air duct (110) is formed in the upper end of the mounting bracket (100), and a butt joint edge (121) extends out of the edge of the first mounting opening (120);

the dryer subassembly, dryer subassembly includes inner shell (200), the inside of inner shell (200) is equipped with second wind channel (210), be equipped with on inner shell (200) with second mounting mouth (220) of second wind channel (210) intercommunication, the edge of second mounting mouth (220) outwards extends first edge (221), be equipped with second edge (222) on the outer wall of inner shell (200), second edge (222) encircle first edge (221) set up, first edge (221) with the interval forms seal groove (223) between second edge (222), butt joint edge (121) with seal groove (223) cooperation is inseparable pegging graft.

2. The dual seal handpiece of claim 1, wherein: the seal groove (223) has a draft angle.

3. The dual seal handpiece of claim 1, wherein: the inner shell (200) comprises a front shell (230) and a rear shell (240) which are in butt joint with each other, a first half hole (231) is formed in the shell wall of the front shell (230), a second half hole (241) is formed in the shell wall of the rear shell (240), and the first half hole (231) and the second half hole (241) are matched to form the second mounting opening (220).

4. A dual seal construction handset as defined in claim 3 wherein: the first half-hole (231) has a larger pore diameter than the second half-hole (241).

5. The dual seal handpiece of claim 4, wherein: the first edge (221) corresponding to the second half hole (241) is provided with a turning part (242), the turning part (242) extends towards the end part of the first edge (221) corresponding to the first half hole (231) in an arc gradual change mode, and the butt joint edge (121) is provided with a bending position (122) corresponding to the turning part (242).

6. The dual seal handpiece of claim 5, wherein: the second edge (222) at the corresponding position of the turning part (242) is provided with a notch (243).

7. The dual seal handpiece of claim 1, wherein: still install toggle switch subassembly on the handle subassembly, toggle switch subassembly includes toggle button (310) and sealed apron (320), sealed apron (320) lid is in toggle button (310) are last, be equipped with hydrophobic guide slot (321) on sealed apron (320), hydrophobic guide slot (321) encircle toggle button (310) are set up.

8. The dual seal handpiece of claim 1, wherein: the handle assembly further comprises a handle sleeve (400), and the handle sleeve (400) is sleeved outside the mounting bracket (100).

9. The dual seal handpiece of claim 1, wherein: the air duct assembly further comprises an outer shell (500), and the outer shell (500) is sleeved outside the inner shell (200).