WO2021218720A1

WO2021218720A1 - Embedded telescopic apparatus and head-mounted device

Info

Publication number: WO2021218720A1
Application number: PCT/CN2021/088550
Authority: WO
Inventors: 朱达云
Original assignee: 朱达云
Priority date: 2020-04-30
Filing date: 2021-04-21
Publication date: 2021-11-04
Also published as: CN211656354U

Abstract

Disclosed in the present utility model is an embedded telescopic apparatus, comprising a housing, a sliding member and a telescopic gear shift mechanism. A cavity is formed in the housing and the cavity is provided with an insertion port. The sliding member is provided with a telescopic end and an insertion end, wherein the insertion end is inserted into the cavity through the insertion port and slidably limited in the cavity, and the telescopic end can extend out of the insertion port in a telescopic manner. The telescopic gear shift mechanism comprises a strip-shaped gear shift recess and a limiting protrusion, wherein the gear shift recess is arranged on the side wall of the cavity and the limiting protrusion is arranged on the side surface of the sliding member. The limiting protrusion is embedded in the gear shift recess and slidably limited between two ends of the gear shift recess; the gear shift recess is provided with at least two gear parts and at least one elastic limiting part, wherein the gear parts and the elastic limiting part are alternately arranged and in mutual communication, the elastic limiting part limits the limiting protrusion in the gear parts, and when the sliding member slides, the limiting protrusion slides from one gear part to another gear part. The gear shift mechanism has the advantages of a simple structure, a small size, firmness and durability.

Description

Embedded telescopic device and head-mounted equipment

Technical field

The utility model belongs to the technical field of telescopic devices, in particular to an embedded telescopic device and head-mounted equipment.

Background technique

A headset is a device worn on the head, such as a headset, a head-mounted hearing aid, and a head-mounted hearing aid. Headphones are composed of a headband and speaker modules arranged at both ends of the headband. In order for the speaker module to fit the ears better, a telescopic adjustment device is generally provided at the connection between the headband and the speaker module, and the telescopic adjustment device expands to adjust the speaker module. The position allows users to use the headset more comfortably.

Chinese patent CN201821455405.4 discloses a telescopic structure of a headset, including a cover body and a telescopic assembly. The cover body includes an upper cover body and a lower cover body. The lower cover body is provided with a sliding groove. The assembly is slidably mounted in the sliding groove. The groove bottom of the sliding groove is provided with convex blocks at intervals, and a clamping position is formed between two adjacent convex blocks. It is fixedly installed above the telescopic part, the elastic piece includes a convex part, a buffer part and a hook part, the telescopic part is provided with a through groove and a mounting block, the convex part protrudes from the through groove, and the convex part is clamped In the holding position, the hook part is hooked to the mounting block, the upper surface of the buffer part abuts against the lower surface of the headband, and the telescopic member is provided with a limit hook. The disadvantages of the above telescopic structure are: 1. The elastic sheet is affected by the pressure exerted on it by the headband and the resistance of the sliding direction when the elastic sheet slides, and the surface is also worn by friction, which is easy to deform and cause the elastic structure to fail; 2. Due to the size of the elastic sheet The smaller the size, the easier it is to deform due to force. Therefore, the telescopic structure is limited by the shrapnel, the structure is complex, and the volume is larger.

Utility model content

The purpose of the utility model is to provide an embedded telescopic device and a head-mounted device, which aims to solve the technical problems of the complex structure and large volume of the embedded telescopic device in the prior art.

In order to achieve the above-mentioned purpose, an embedded telescopic device provided by the present invention includes:

A housing, a cavity is formed in the housing, and the cavity has an insertion port;

The embedded telescopic device also includes:

A sliding member, the sliding member has a telescopic end and an insertion end, the insertion end is inserted into the cavity through the insertion port and is slidably confined in the cavity, and the telescopic end telescopically extends out of the cavity Insertion port; and

A telescopic shifting mechanism, the telescopic shifting mechanism includes a long shifting recess and a limiting protrusion; the shifting recess is provided on the side wall of the cavity and the limiting protrusion Provided on the side surface of the sliding member; or, the shifting recess is provided on the side surface of the sliding member and the limiting protrusion is provided on the side wall of the cavity;

The limiting protrusion is embedded in the shifting concave portion and is slidably limited between the two ends of the shifting concave portion; the shifting concave portion includes at least two consecutively arranged gear portions and at least one elastic limiting portion, The stop part and the elastic stop part are alternately arranged and communicate with each other; the elastic stop part restricts the stop protrusion in the stop part; the sliding part slides, the stop The convex piece slides from one of the stop portions to the other of the stop portions.

Optionally, the limiting protrusion is matched with the blocking portion, and the limiting protrusion is closely matched with the elastic limiting portion.

Optionally, the limiting protrusion is provided on the side surface of the sliding member and adjacent to the insertion end.

Optionally, the limiting protrusion is provided on the side wall of the cavity and adjacent to the insertion port.

Optionally, the embedded telescopic device further includes an electric wire; the electric wire passes through the sliding member through a first through hole or is integrally formed in the sliding member.

Optionally, the embedded telescopic device further includes a rigid strip; the rigid strip penetrates the sliding member through a second through hole or is integrally formed in the sliding member.

Optionally, a wire compartment is formed between the insertion end and the back wall of the cavity, and a lead hole communicating with the wire compartment is provided on the wall surface of the cavity; the tail of the wire is accommodated in the housing The wire bin, the end of which is led out from the lead hole.

Optionally, the limiting protrusion is a protrusion or a marble. The marble includes an elastic member and a bead, and the bead is provided on the elastic member.

Optionally, a tension groove is provided at one or both ends of the shift recess.

The utility model also provides a headgear including a headband, the headband has two mounting ends; the headgear also includes the embedded telescopic device, the embedded telescopic device is arranged in the installation End up.

The above-mentioned one or more technical solutions in the embedded telescopic device and the head-mounted device provided by the embodiment of the present invention have at least one of the following technical effects:

1. The embedded telescopic device realizes the telescopic shifting of the sliding member through the telescopic shifting mechanism. The telescopic shifting mechanism includes a shifting concave portion and a limiting protrusion. When the telescopic shifting, the sliding member slides, and the limiting protrusion One of the gears slides to the other gear to realize telescopic shifting; the shifting structure has a simple structure and is easy to manufacture; the embedded telescopic device with the shifting structure is correspondingly simple in structure, small in size, and sturdy Durable, long service life, not prone to failure;

2. The head-mounted device with the embedded telescopic device correspondingly has the advantages of simple structure, easy manufacture, small volume, and the telescopic function is not easy to fail.

Description of the drawings

In order to explain the technical solutions in the embodiments of the present utility model more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only for the utility model. For some of the new embodiments, those of ordinary skill in the art can obtain other drawings based on these drawings without creative labor.

Fig. 1 is a schematic diagram of the structure of the embedded telescopic device provided in the first embodiment of the utility model.

Fig. 2 is another structural schematic diagram of the embedded telescopic device provided in the first embodiment of the present invention.

FIG. 3 is a schematic diagram of the structure of the head-mounted device provided by Embodiment 2 of the present invention.

4 is a schematic structural diagram of the embedded telescopic device provided in Embodiment 3 of the utility model.

FIG. 5 is a schematic diagram of the structure of the sliding member provided in Embodiment 3 of the present invention.

Fig. 6 is a schematic diagram of the structure of the embedded telescopic device provided in the fourth embodiment of the present invention.

FIG. 7 is a schematic diagram of the structure of the embedded telescopic device provided by Embodiment 5 of the present invention.

Detailed ways

The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary, and are intended to explain the embodiments of the present utility model, and should not be understood as a limitation to the present utility model.

Example 1

As shown in FIGS. 1 to 2, this embodiment provides an embedded telescopic device 100, which includes a housing 110, a sliding member 120 and a telescopic shifting mechanism 130. A cavity 111 is formed in the housing 110, and the cavity 111 has an insertion port 1111. The sliding member 120 has a telescopic end 121 and an insertion end 122. The insertion end 122 is inserted into the cavity 111 through the insertion port 1111 and is slidably confined in the cavity 111. The telescopic end 121 is telescopically Extend the insertion port 1111.

The telescopic shifting mechanism 130 includes a long shifting recess 131 and a limiting protrusion 132. Specifically, the shifting recess 131 is a hole. In another embodiment of the present invention, the shift recess 131 is a groove. The shifting recess 131 is provided on the side wall of the cavity 111 and the limiting protrusion 132 is provided on the side surface of the sliding member 120, and the limiting protrusion 132 is opposite to the insertion end 122 adjacent. The limiting protrusion 132 is embedded in the shifting recess 131 and is slidably limited between the two ends of the shifting recess 131. The shifting recess 131 includes at least two consecutive gear portions 1311, 1311' and at least one elastic limit portion 1312, the gear portions 1311 and the elastic limit portion 1312 are alternately arranged and communicate with each other. The limiting protrusion 132 closely fits with the elastic limiting portion 1312, and the elastic limiting portion 1312 is made of elastic material, such as elastic rubber, silicone, and soft plastic. The elastic material is affected by the limiting protrusion. When the member 132 is squeezed, the limiting protrusion 132 can be compressed and clamped. The limiting protrusion 132 is matched with the stop portion 1311, 1311'. The elastic limiting portion 1312 limits the limiting protrusion 132 in the blocking portion 1311. When telescopic gear shifting, the sliding member 120 slides, and the limiting protrusion 132 slides from one of the shifting portions 1311 through the elastic limiting portion 1312 to the other shifting portion 1311' to achieve Telescopic shift.

The shift structure 130 has a simple structure and is easy to manufacture. The embedded telescopic device 100 with the shifting structure 130 correspondingly also has the advantages of simple structure, small size, strong and durable, long service life, and not easy to malfunction.

The embedded telescopic device 100 further includes a wire 140. The wire 140 passes through the sliding member 120 through a first through hole 123. The above setting functions as a hidden lead and is more compact.

The embedded telescopic device 100 also includes a rigid bar 150. The rigid strip 150 passes through the sliding member 120 through a second through hole 124. In this embodiment, the rigid strip 150 is a steel wire. In some embodiments of the present invention, the material of the rigid strip 150 may also be plastic, alloy or carbon fiber.

A wire bin 125 is formed between the insertion end 122 and the back wall of the cavity 111, and a lead hole 126 communicating with the wire bin 125 is also provided on the wall surface of the cavity 111. The tail of the wire 140 is accommodated in the wire bin 125, and the end is led out from the lead hole 126. The wire bin 125 plays a role of facilitating lead wire and accommodating wires. The tail of the wire 140 is a flexible spring wire to facilitate the expansion and contraction of the slider 120.

The limiting protrusion 132 is a protrusion. The convex column is a cylinder.

Tension grooves 1313 are provided at both ends of the shifting recess 131. The tension groove 1313 functions to absorb tension and prevent the end of the shift recess 131 from being squeezed and cracked.

Example 2

As shown in FIG. 3, this embodiment provides a headwear device, which includes a headband 200 having two mounting ends 210. The head-mounted device also includes the embedded telescopic device 100 provided in Embodiment 1, and the embedded telescopic device 100 is provided on the mounting end 210. The end of the wire 140 is led out from the lead hole 126 and then electrically connected to a speaker module 300. The head-mounted device with the embedded telescopic device 100 correspondingly also has the advantages of simple structure, easy manufacture, small volume, and less failure of the telescopic function.

Example 3

As shown in Figures 4 and 5, the difference between this embodiment and Embodiment 1 is that the shifting recess 131 is provided on the side of the sliding member 120 and the limiting protrusion 132 is provided on the On the side wall of the cavity 111, the limiting protrusion 132 is adjacent to the insertion port.

The rest of this embodiment is the same as that of Embodiment 1. For the features that are not explained in this embodiment, the explanation of Embodiment 1 is adopted, and will not be repeated here.

Example 4

As shown in FIG. 6, the difference between this embodiment and Embodiment 1 is that the limiting protrusion 132 is a marble. The marble includes an elastic member 1321 and a bead 1322, and the bead 1322 is fixed on the elastic member 1321. The beads 1322 are spherical beads, and the material can be metal, plastic, glass, or the like.

The electric wire 140 is integrally formed in the sliding member 120. The rigid strip 150 is integrally formed in the sliding member 120. The above-mentioned integral molding can be realized by injection molding during processing.

Example 5

As shown in FIG. 7, the difference between this embodiment and Embodiment 4 is that the shifting recess 131 is provided on the side surface of the sliding member 120 and the limiting protrusion 132 is provided in the cavity 111 On the side wall of the device, the limiting protrusion 132 is adjacent to the insertion port.

The rest of this embodiment is the same as that of Embodiment 4. For the features that are not explained in this embodiment, the explanation of Embodiment 4 is adopted, which will not be repeated here.

Example 6

The difference between this embodiment and Embodiment 4 is that: in this embodiment, the marbles 131 are positioning beads. The positioning beads are also called ball plungers or spring plungers. It is a component composed of shell, spring, ball or cylinder.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model shall be included in this utility model. Within the scope of protection of utility models.

Claims

Embedded telescopic device, including:

A housing, a cavity is formed in the housing, and the cavity has an insertion port;

It is characterized in that it also includes:

A sliding member, the sliding member has a telescopic end and an insertion end, the insertion end is inserted into the cavity through the insertion port and is slidably confined in the cavity, and the telescopic end telescopically extends out of the cavity Insertion port; and

A telescopic shifting mechanism, the telescopic shifting mechanism includes a long shifting recess and a limiting protrusion; the shifting recess is provided on the side wall of the cavity and the limiting protrusion Provided on the side surface of the sliding member; or, the shifting recess is provided on the side surface of the sliding member and the limiting protrusion is provided on the side wall of the cavity;

The limiting protrusion is embedded in the shifting concave portion and is slidably limited between the two ends of the shifting concave portion; the shifting concave portion includes at least two consecutively arranged gear portions and at least one elastic limiting portion, The stop part and the elastic stop part are alternately arranged and communicate with each other; the elastic stop part restricts the stop protrusion in the stop part; the sliding part slides, the stop The convex piece slides from one of the stop portions to the other of the stop portions.
The embedded telescopic device according to claim 1, wherein the limiting protrusion is matched with the blocking portion, and the limiting protrusion is closely matched with the elastic limiting portion.
The embedded telescopic device according to claim 1, wherein the limiting protrusion is provided on a side surface of the sliding member and is adjacent to the insertion end.
The embedded telescopic device according to claim 1, wherein the limiting protrusion is provided on the side wall of the cavity and adjacent to the insertion port.
The embedded telescopic device according to any one of claims 1 to 4, further comprising an electric wire; the electric wire is inserted into the sliding member through a first through hole or is integrally formed on the sliding member Inside.
The embedded telescopic device according to any one of claims 1 to 4, further comprising a rigid bar; the rigid bar penetrates the sliding member through a second perforation or is integrally formed in the sliding member. Mentioned within the sliding part.
The embedded telescopic device according to any one of claims 1 to 4, characterized in that a wire compartment is formed between the insertion end and the rear wall of the cavity, and a wall of the cavity is also provided with A lead hole communicated with the wire bin; the tail of the wire is accommodated in the wire bin, and the end of the wire is led out from the lead hole.
The embedded telescopic device according to any one of claims 1 to 3, wherein the limiting protrusion is a convex column or a marble; the marble includes an elastic member and a bead, and the bead The body is arranged on the elastic member.
The embedded telescopic device according to any one of claims 1 to 4, wherein a tension groove is provided at one or both ends of the shift recess.
Headgear, including a headband, the headband has two mounting ends; characterized in that it also includes the embedded telescopic device according to any one of claims 1-9, the embedded telescopic device is provided in the The installation end.