CN111405410A - Magnetic suction type telescopic device and head-mounted equipment - Google Patents
Magnetic suction type telescopic device and head-mounted equipment Download PDFInfo
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- CN111405410A CN111405410A CN202010313023.3A CN202010313023A CN111405410A CN 111405410 A CN111405410 A CN 111405410A CN 202010313023 A CN202010313023 A CN 202010313023A CN 111405410 A CN111405410 A CN 111405410A
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- magnetic
- magnetic attraction
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- piece
- cavity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1008—Earpieces of the supra-aural or circum-aural type
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
- Headphones And Earphones (AREA)
Abstract
The invention discloses a magnetic attraction type telescopic device which comprises a shell, a sliding piece and a magnetic attraction mechanism. A cavity is formed in the housing, and an insertion opening is formed at one end of the cavity. The sliding piece is provided with an insertion end and a telescopic end, and the insertion end is inserted into the cavity through the insertion opening and is limited in the cavity in a sliding manner; the telescopic end extends out from the insertion opening. The magnetic attraction mechanism comprises at least two first magnets and at least one second magnet; the first magnet is arranged on the inner wall surface of the cavity and the second magnet is arranged on the side surface of the sliding piece; or the first magnet is arranged on the side surface of the sliding part and the second magnet is arranged on the inner wall surface of the cavity; the first magnets are arranged along the moving direction of the sliding piece; when the sliding part is static, the at least one second magnet and the at least one first magnet are attracted; the sliding piece slides, and the second magnet moves from one first magnet to the other first magnet and is mutually adsorbed. The magnetic type telescopic device is simple in structure and small in size. The invention also discloses a head-mounted device with the magnetic type telescopic device.
Description
Technical Field
The invention belongs to the technical field of head-mounted equipment, and particularly relates to a magnetic type telescopic device and head-mounted equipment.
Background
The head-mounted equipment is worn on the head, such as a headset, a hearing aid and the like, and comprises a head band and speaker modules arranged at two ends of the head band, wherein the connection part of the head band and the speaker modules is generally provided with a telescopic adjusting device for enabling the speaker modules to be more attached to ears, and the telescopic adjusting device is telescopic to adjust the positions of the speaker modules.
Chinese patent CN201821455405.4 discloses a headphone's extending structure, including lid and flexible subassembly, the lid includes lid and lower lid, the lid is equipped with the sliding tray down, flexible subassembly slidable mounting is in the sliding tray, the tank bottom interval of sliding tray is provided with the lug, forms between two adjacent lugs to hold the position, flexible subassembly includes bandeau, extensible member and shell fragment, bandeau fixed mounting is in the top of extensible member, the shell fragment includes convex part, buffer part and hook portion, be equipped with logical groove and installation piece on the extensible member, the convex part stretches out in logical groove, and the convex part is held and is held in holding the position, hook portion pothook is in the installation piece, the upper surface of buffer part and the lower surface butt of bandeau, the extensible member is equipped with spacing pothook. The disadvantages of the telescopic structure are: 1. the parts are many, the structure is complex, and the processing and the manufacturing are not easy; the volume is large, and the earphone is not suitable for small-sized earphones; 2. the elastic sheet is easy to deform and lose efficacy, so that the elastic sheet cannot be adjusted in a telescopic mode.
Disclosure of Invention
The invention aims to provide a magnetic attraction type telescopic device and a head-mounted device, and aims to solve the technical problems that a telescopic mechanism of the head-mounted device in the prior art is complex in structure and large in size.
In order to achieve the above object, the present invention provides a magnetic suction type telescopic device, comprising:
the device comprises a shell, a first fixing piece and a second fixing piece, wherein a cavity is formed in the shell, and one end of the cavity is provided with an insertion hole; and
the sliding piece is provided with an insertion end and a telescopic end, and the insertion end is inserted into the cavity through the insertion port and is limited in the cavity in a sliding manner; the telescopic end extends out of the insertion opening;
this formula telescoping device is inhaled to magnetism still includes:
the magnetic attraction mechanism comprises at least two first magnetic attraction pieces and at least one second magnetic attraction piece; the first magnetic attraction piece and the second magnetic attraction piece are both magnets or respectively a magnet and an iron piece, and the first magnetic attraction piece and the second magnetic attraction piece are magnetically attracted;
the first magnetic attraction piece is arranged on the inner wall surface of the cavity, and the second magnetic attraction piece is arranged on the side surface of the sliding piece;
or the first magnetic part is arranged on the side surface of the sliding part and the second magnetic part is arranged on the inner wall surface of the cavity;
the first magnetic suction pieces are arranged along the moving direction of the sliding piece; when the sliding part is static, the at least one first magnetic attraction piece and the at least one second magnetic attraction piece attract each other; the sliding part slides, and the second magnetic attraction piece moves from one first magnetic attraction piece to the other first magnetic attraction piece and is mutually attracted.
Optionally, the plurality of first magnetic attraction pieces are arranged on the inner wall surface of the cavity, and the polarities of any two adjacent first magnetic attraction pieces are opposite; the two second magnetic suction pieces are arranged on the side surface of the sliding piece and are adjacent to the insertion end, and the polarities of the two second magnetic suction pieces are opposite; when the sliding part is static, the two second magnetic attraction pieces are respectively attracted with the two first magnetic attraction pieces, the sliding part slides, and the two second magnetic attraction pieces move from the two first magnetic attraction pieces to the other two first magnetic attraction pieces and are respectively attracted to each other.
Optionally, the plurality of first magnetic attracting elements are arranged on the inner wall surface of the cavity; the magnetic poles of the first magnetic suction pieces are arranged in the same way; and the second magnetic part is arranged on the side surface of the sliding part and is adjacent to the insertion end.
Optionally, the first magnetic attraction pieces are disposed on a side surface of the sliding member, and the second magnetic attraction piece is disposed on an inner wall surface of the cavity and adjacent to the insertion opening.
Optionally, an electric wire is inserted into the sliding part or integrally formed in the sliding part; the sliding part is provided with a first through hole arranged along the length direction of the sliding part, and the electric wire penetrates through the sliding part through the first through hole.
Optionally, a rigid strip is inserted into the sliding member or integrally formed in the sliding member; the sliding piece is provided with a second through hole arranged along the length direction of the sliding piece; the rigid strip penetrates through the second through hole and is arranged in the sliding part, and the tail end of the rigid strip is limited at an outlet of the second through hole.
Optionally, the insertion end and the rear wall of the cavity are formed with a wire bin, and a lead hole communicated with the wire bin is further formed in the wall surface of the cavity.
Optionally, a first limiting portion adjacent to the insertion end is arranged on the sliding member, and a second limiting portion adjacent to the telescopic end is arranged on the sliding member; the insertion hole is provided with a third limiting part, and the sliding piece is limited by matching the first limiting part or the second limiting part with the third limiting part respectively.
Optionally, a guide groove is formed in one side wall or two opposite side walls of the cavity, and the sliding member is matched with the guide groove.
The invention also provides a head-mounted device, which comprises a head band, a first connecting piece and a second connecting piece, wherein the head band is provided with two mounting ends; this head-mounted apparatus still includes foretell magnetism and inhales formula telescoping device, two magnetism is inhaled formula telescoping device and is located two respectively the installation is served.
The one or more technical schemes in the magnetic-type telescopic device and the head-mounted equipment provided by the embodiment of the invention at least have one of the following technical effects:
1. the magnetic attraction type telescopic device fixes the shell and the sliding part in a magnetic attraction mode, and when the sliding part is static, the at least one second magnetic attraction part and the at least one first magnetic attraction part attract each other; when the sliding part extends and retracts, the sliding part slides, and the second magnetic suction part moves from one first magnetic suction part to the other first magnetic suction part and is mutually adsorbed; the magnetic attraction type telescopic device is simple in structure, small in size, easy to install and manufacture, better in hand feeling during drawing and lower in noise; the magnetic attraction type telescopic device using magnetic attraction has higher reliability, is not easy to damage and has longer service life;
2. the head-mounted equipment with the magnetic type telescopic device is smaller in size, more portable and longer in service life.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a magnetic-type telescopic device according to embodiment 1 of the present invention in a contracted state.
Fig. 2 is a schematic structural diagram of an extended state of a magnetic-type telescopic device according to embodiment 1 of the present invention.
Fig. 3 is a cross-sectional view of the magnetic-type telescopic device according to embodiment 1 of the present invention in an extended state.
Fig. 4 is a schematic structural diagram of a head-mounted device according to embodiment 2 of the present invention.
Fig. 5 is a schematic structural diagram of a magnetic-type telescopic device according to embodiment 3 of the present invention in a contracted state.
Fig. 6 is a schematic structural diagram of a magnetic-type telescopic device according to embodiment 4 of the present invention in a contracted state.
Fig. 7 is a schematic structural diagram of a magnetic-type telescopic device according to embodiment 5 of the present invention in a contracted state.
Fig. 8 is a sectional view of a magnetic type expansion device according to embodiment 6 of the present invention.
Fig. 9 is a schematic structural diagram of an insertion port provided in embodiment 6 of the present invention.
Fig. 10 is a sectional view of a magnetic type expansion device according to embodiment 7 of the present invention.
Fig. 11 is a schematic structural diagram of an insertion port provided in embodiment 7 of the present invention.
Fig. 12 is a sectional view of a magnetic type expansion device according to embodiment 8 of the present invention.
Fig. 13 is a schematic structural diagram of an insertion port according to embodiment 8 of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the embodiments of the present invention, and should not be construed as limiting the invention.
Example 1
Referring to fig. 1 to 3, a magnetic attraction type telescopic device 100 provided in the present embodiment includes a housing 110, a sliding member 120, and a magnetic attraction mechanism 130. A cavity 111 is formed in the housing 110, and an insertion opening 1111 is formed at one end of the cavity 111. The sliding member 120 has an insertion end 121 and a telescopic end 122, and the insertion end 121 is inserted into the cavity 111 through the insertion opening 1111 and is slidably confined in the cavity 111. The telescopic end 122 protrudes from the insertion port 1111. The magnetic attraction mechanism 130 includes at least two first magnetic attraction members 131 and at least one second magnetic attraction member 132. Specifically, the first magnetic member 131 and the second magnetic member 132 are both permanent magnets. The first magnetic member 131 is disposed on an inner wall surface of the cavity 111, and the second magnetic member 132 is disposed on a side surface of the slider 120. The first magnetic attraction pieces 131 are arranged along the moving direction of the sliding member 120, and specifically, the first magnetic attraction pieces 131 are uniformly arranged along a straight line.
When the sliding member 120 is at rest, the at least one first magnetic attraction member 131 and the at least one second magnetic attraction member 132 attract each other. When the sliding member 120 extends and retracts, the sliding member 120 slides, and the second magnetic attraction member 132 moves from one of the first magnetic attraction members 131 to the other first magnetic attraction member 131 and attracts each other. The magnetic suction type telescopic device 100 fixes the shell 110 and the sliding part 120 in a magnetic suction mode, so that the magnetic suction type telescopic device 100 is simple in structure, small in size, easy to install and manufacture and better in hand feeling during drawing. The magnetic attraction type telescopic device 100 using magnetic attraction has the advantages of higher reliability, difficult damage and longer service life.
The first magnetic attraction pieces 131 are disposed on an inner wall surface of the cavity 111. The magnetic poles of the first magnetic attraction pieces 131 are arranged in the same order. Specifically, a first groove (not shown in the figure) matched with the first magnetic attraction piece 131 is arranged on the inner wall surface of the cavity 111, and the first magnetic attraction piece 131 is embedded into the first groove, so that the installation is stable. In this embodiment, the number of the first magnetic attraction pieces 131 is 4. In some embodiments of the present invention, the number of the first magnetic attraction pieces 131 is 3, 5 or 6, etc. One of the second magnetic elements 132 is disposed on a side of the slider 120 adjacent to the insertion end 121. Specifically, a second groove (not shown) is disposed on a side surface of the sliding member 120, and the second magnetic member 132 is embedded in the second groove.
An electric wire 150 is inserted into the sliding member 120. The sliding member 120 is provided with a first through hole 123 arranged along a length direction thereof, and the electric wire 150 is inserted into the sliding member 120 through the first through hole 123.
A rigid bar 140 is disposed through the slider 120. The slider is provided with a second aperture 126 disposed along its length. The rigid bar 140 is inserted into the sliding member 120 through the second through hole 126, and the end of the rigid bar 140 is limited at the outlet of the mounting hole 123. The rigid strip 140 is a steel wire. In some embodiments of the invention, the rigid strip 140 is a rigid plastic wire, an aluminum alloy wire, or a carbon fiber wire.
The insertion end 121 and the wall surface of the cavity 111 form a wire chamber 1112, and the rear wall of the cavity 111 is further provided with a lead hole 1113 communicated with the wire chamber 1112. The wires 150 enter the wire chamber 1112 through the first through hole 123, and the tail of the wire 150 is received in the wire chamber 1112 and the end of the wire 150 is led out from the lead hole 1113. The tail of the wire 150 is preferably a retractable spring wire. The structure can be a hidden ground lead, further simplifies the structure, improves the integration level and beautifies the appearance of the product.
The sliding member 120 is provided with a first limiting portion 124 adjacent to the insertion end 121, the sliding member 120 is provided with a second limiting portion 125 adjacent to the telescopic end 122, and the first limiting portion 124 and the second limiting portion 125 are two side walls of a strip-shaped groove. The insertion opening 1111 is provided with a third limiting portion 11111, and the third limiting portion 11111 is a stop block matched with the strip-shaped groove. The sliding member 120 is limited by the first limiting portion 124 or the second limiting portion 125 cooperating with the third limiting portion 11111. When the sliding member 120 is inserted to the maximum stroke, the third limiting portion 11111 blocks the second limiting portion 125, so as to realize limiting. When the sliding member 120 is drawn out to the maximum stroke, the third limiting portion 11111 blocks the first limiting portion 124, so as to realize limiting.
Example 2
Referring to fig. 4, the head-mounted device provided in this embodiment includes a head band 200, and the head band 200 has two mounting ends 210. The head-mounted device further comprises a magnetic type telescopic device 100 provided by embodiment 1, wherein the magnetic type telescopic device 100 is respectively arranged on the mounting end 210. Specifically, the mounting end 210 is fixedly connected to the telescopic end 122 of the sliding member 120, and the sliding member 120 is arc-shaped and long. A speaker module (not shown) is fixedly coupled to the housing 110. The housing 110 is correspondingly arc-shaped and long.
The head-mounted equipment with the magnetic type telescopic device 100 is smaller in size, more portable and longer in service life.
Example 3
Referring to fig. 5, the difference between the present embodiment and embodiment 1 is: the first magnetic attraction pieces 131 and 131' are disposed on an inner wall surface of the cavity 111. The polarities of any two adjacent first magnetic attraction pieces 131 and 131' are opposite. In this embodiment, the number of the first magnetic attraction pieces 131 and 131' is 6. In some embodiments of the present invention, the number of the first magnetic attracting elements 131, 131' is 4, 8, 10, etc. The two second magnetic attraction pieces 132, 132 'are disposed on the side surface of the sliding member 120 and adjacent to the insertion end 121, and the polarities of the two second magnetic attraction pieces 132, 132' are opposite. When the sliding member 120 is stationary, the two second magnetic attraction members 132 and 132 ' respectively attract the two first magnetic attraction members 131 and 131 ', and when the sliding member 120 slides, the two second magnetic attraction members 132 and 132 ' move from the two first magnetic attraction members 131 and 131 ' to the other two first magnetic attraction members 131 and 131 ' and respectively attract each other. The above arrangement can provide the hand feeling during pulling, and the two second magnetic attraction pieces 132 and 132 'respectively attract the two first magnetic attraction pieces 131 and 131' more strongly and stably.
The electric wire is integrally formed in the sliding part in an injection molding mode. The rigid strip is integrally formed in the sliding member.
The rest of this embodiment is the same as embodiment 1, and the features not explained in this embodiment are explained by embodiment 1, which is not described again here.
Example 4
Referring to fig. 6, the difference between the present embodiment and embodiment 1 is: the first magnetic attraction pieces 131 are disposed on the side surface of the sliding member 120, and the magnetic poles of the first magnetic attraction pieces 131 are arranged in the same manner. In this embodiment, the number of the first magnetic attraction pieces 131 is 4. In some embodiments of the present invention, the number of the first magnetic attraction pieces 131 is 3, 5 or 6, etc. One of the second magnetic attraction pieces 132 is disposed on an inner wall surface of the cavity 111 and adjacent to the insertion opening 1111.
The first position-limiting portion 124 and the second position-limiting portion 125 are both a protrusion, and the third position-limiting portion 11111 is a stop.
The rest of this embodiment is the same as embodiment 1, and the features not explained in this embodiment are explained by embodiment 1, which is not described again here.
Example 5
Referring to fig. 7, the difference between the present embodiment and embodiment 1 is: the first magnetic attraction pieces 131 with the same magnetic pole arrangement are uniformly arranged on one side wall surface of the cavity 111, and the first magnetic attraction pieces 131' with the same magnetic pole arrangement are uniformly arranged on the other side wall surface of the cavity 111; the two second magnetic attracting elements 132, 132' are respectively disposed on two side surfaces of the sliding element 120. The above arrangement can increase the resistance when the slider 120 is drawn.
The rest of this embodiment is the same as embodiment 1, and the features not explained in this embodiment are explained by embodiment 1, which is not described again here.
Example 6
Referring to fig. 8 and 9, the present embodiment is different from embodiment 1 in that: a guide groove 1114 is arranged on one bottom side wall of the cavity 111, and the sliding part 120 is matched with the guide groove 1114. The guide groove 1114 serves as a limit, and limits the movement of the slider 120 to prevent the slider from shaking.
The third stopper 11111 is a baffle provided on the bottom side of the insertion port 1111. The first limiting part and the second limiting part are stop blocks matched with the baffle plates.
The rest of this embodiment is the same as embodiment 1, and the features not explained in this embodiment are explained by embodiment 1, which is not described again here.
Example 7
Referring to fig. 10 and 11, the present embodiment is different from embodiment 6 in that: the guide channel 1114' is disposed at a top sidewall of the cavity 111.
The third stopper 11111' is a baffle provided on the top side of the insertion port 1111.
The rest of this embodiment is the same as embodiment 6, and the features not explained in this embodiment are explained by embodiment 6, which is not described again here.
Example 8
Referring to fig. 12 and 13, the present embodiment is different from embodiment 6 in that: guide grooves 1114 and 1114 'are formed in two opposite side walls of the cavity 111, and the sliding member 120 is matched with the guide grooves 1114 and 1114'. The two guide grooves 1114 and 1114' can further improve the guide and limiting effects.
The third limiting portions 11111 and 11111' are respectively baffles arranged on the bottom side and the top side of the insertion port 1111.
The rest of this embodiment is the same as embodiment 6, and the features not explained in this embodiment are explained by embodiment 6, which is not described again here.
Example 9
The present embodiment is different from embodiment 1 in that: the first magnetic member 131 is a magnet, and the second magnetic member 132 is a ferrous member.
The rest of this embodiment is the same as embodiment 1, and the features not explained in this embodiment are explained by embodiment 1, which is not described again here.
Example 10
The present embodiment is different from embodiment 1 in that: the first magnetic member 131 is a ferrous member, and the second magnetic member 132 is a magnet.
The rest of this embodiment is the same as embodiment 1, and the features not explained in this embodiment are explained by embodiment 1, which is not described again here.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Magnetic attraction type telescopic device comprises:
the device comprises a shell, a first fixing piece and a second fixing piece, wherein a cavity is formed in the shell, and one end of the cavity is provided with an insertion hole; and
the sliding piece is provided with an insertion end and a telescopic end, and the insertion end is inserted into the cavity through the insertion port and is limited in the cavity in a sliding manner; the telescopic end extends out of the insertion opening;
it is characterized by also comprising:
the magnetic attraction mechanism comprises at least two first magnetic attraction pieces and at least one second magnetic attraction piece; the first magnetic attraction piece and the second magnetic attraction piece are both magnets or respectively a magnet and an iron piece, and the first magnetic attraction piece and the second magnetic attraction piece are magnetically attracted;
the first magnetic attraction piece is arranged on the inner wall surface of the cavity, and the second magnetic attraction piece is arranged on the side surface of the sliding piece;
or the first magnetic part is arranged on the side surface of the sliding part and the second magnetic part is arranged on the inner wall surface of the cavity;
the first magnetic suction pieces are arranged along the moving direction of the sliding piece; when the sliding part is static, the at least one first magnetic attraction piece and the at least one second magnetic attraction piece attract each other; the sliding part slides, and the second magnetic attraction piece moves from one first magnetic attraction piece to the other first magnetic attraction piece and is mutually attracted.
2. A magnetic suction type telescopic device according to claim 1, wherein a plurality of the first magnetic suction pieces are arranged on the inner wall surface of the cavity, and the polarities of any two adjacent first magnetic suction pieces are opposite; the two second magnetic suction pieces are arranged on the side surface of the sliding piece and are adjacent to the insertion end, and the polarities of the two second magnetic suction pieces are opposite; when the sliding part is static, the two second magnetic attraction pieces are respectively attracted with the two first magnetic attraction pieces, the sliding part slides, and the two second magnetic attraction pieces move from the two first magnetic attraction pieces to the other two first magnetic attraction pieces and are respectively attracted to each other.
3. A magnetic suction type telescopic device according to claim 1, wherein a plurality of the first magnetic suction pieces are provided on an inner wall surface of the cavity; the magnetic poles of the first magnetic suction pieces are arranged in the same way; and the second magnetic part is arranged on the side surface of the sliding part and is adjacent to the insertion end.
4. A magnetic suction type telescopic device according to claim 1, wherein a plurality of the first magnetic suction members are provided on a side surface of the slider, and one of the second magnetic suction members is provided on an inner wall surface of the cavity and adjacent to the insertion port.
5. A magnetic suction type telescopic device according to any one of claims 1 to 4, characterized in that an electric wire is inserted into the sliding member or is integrally formed in the sliding member; the sliding part is provided with a first through hole arranged along the length direction of the sliding part, and the electric wire penetrates through the sliding part through the first through hole.
6. A magnetic suction type telescopic device according to any one of claims 1 to 4, characterized in that a rigid bar is inserted into the sliding member or is integrally formed in the sliding member; the sliding piece is provided with a second through hole arranged along the length direction of the sliding piece; the rigid strip penetrates through the second through hole and is arranged in the sliding part, and the tail end of the rigid strip is limited at an outlet of the second through hole.
7. A magnetic suction type telescopic device according to any one of claims 1 to 4, characterized in that the insertion end and the rear wall of the cavity are formed with a wire chamber, and the wall surface of the cavity is further provided with a wire hole communicated with the wire chamber.
8. A magnetic suction type telescopic device according to any one of claims 1 to 4, wherein the sliding member is provided with a first limit part adjacent to the insertion end, and the sliding member is provided with a second limit part adjacent to the telescopic end; the insertion hole is provided with a third limiting part, and the sliding piece is limited by matching the first limiting part or the second limiting part with the third limiting part respectively.
9. A magnetic suction type telescopic device according to any one of claims 1 to 4, characterized in that a guide groove is provided on one side wall or the opposite side walls of the cavity, and the sliding member is matched with the guide groove.
10. The head-mounted equipment comprises a head band, wherein the head band is provided with two mounting ends; the magnetic suction type telescopic device is characterized by further comprising two magnetic suction type telescopic devices according to any one of claims 1 to 9, wherein the two magnetic suction type telescopic devices are respectively arranged on the two mounting ends.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010313023.3A CN111405410A (en) | 2020-04-20 | 2020-04-20 | Magnetic suction type telescopic device and head-mounted equipment |
| PCT/CN2021/088152 WO2021213332A1 (en) | 2020-04-20 | 2021-04-19 | Magnetic attraction type extendable device and apparatus worn on head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010313023.3A CN111405410A (en) | 2020-04-20 | 2020-04-20 | Magnetic suction type telescopic device and head-mounted equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111405410A true CN111405410A (en) | 2020-07-10 |
Family
ID=71437050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010313023.3A Pending CN111405410A (en) | 2020-04-20 | 2020-04-20 | Magnetic suction type telescopic device and head-mounted equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111405410A (en) |
| WO (1) | WO2021213332A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021213332A1 (en) * | 2020-04-20 | 2021-10-28 | Zhu Dayun | Magnetic attraction type extendable device and apparatus worn on head |
| CN114705234A (en) * | 2022-04-25 | 2022-07-05 | 深圳市道通科技股份有限公司 | Calibration assembly and detection device |
| US20230308799A1 (en) * | 2022-03-24 | 2023-09-28 | Darfon Electronics Corp. | Retractable headphone connection structure and head-mounted audio device therewith |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106331926B (en) * | 2016-08-30 | 2020-12-08 | 深圳市冠旭电子股份有限公司 | Earphone connection structure and headphone |
| CN106358106B (en) * | 2016-08-30 | 2020-12-08 | 深圳市冠旭电子股份有限公司 | Earphone connection structure and headphone |
| CN206042292U (en) * | 2016-08-30 | 2017-03-22 | 深圳市冠旭电子股份有限公司 | Earphone connection structure and headphone |
| CN208940168U (en) * | 2018-09-06 | 2019-06-04 | 佳禾智能科技股份有限公司 | A kind of stretching structure of headphone |
| CN111405410A (en) * | 2020-04-20 | 2020-07-10 | 深圳市创想听力技术有限公司 | Magnetic suction type telescopic device and head-mounted equipment |
-
2020
- 2020-04-20 CN CN202010313023.3A patent/CN111405410A/en active Pending
-
2021
- 2021-04-19 WO PCT/CN2021/088152 patent/WO2021213332A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021213332A1 (en) * | 2020-04-20 | 2021-10-28 | Zhu Dayun | Magnetic attraction type extendable device and apparatus worn on head |
| US20230308799A1 (en) * | 2022-03-24 | 2023-09-28 | Darfon Electronics Corp. | Retractable headphone connection structure and head-mounted audio device therewith |
| TWI829123B (en) * | 2022-03-24 | 2024-01-11 | 達方電子股份有限公司 | Retractable earphone connection structure and head-mounted audio device therewith |
| CN114705234A (en) * | 2022-04-25 | 2022-07-05 | 深圳市道通科技股份有限公司 | Calibration assembly and detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021213332A1 (en) | 2021-10-28 |
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