In-ear earphone capable of avoiding sound leakage

Abstract

The utility model relates to the technical field of earphones, in particular to an in-ear earphone capable of avoiding sound leakage, which comprises an earphone main body, one end of the earphone main body is connected with an earphone handle, the other end of the earphone main body is provided with a sound guide tube, a thread groove is arranged outside the sound guide tube along the circumference of the sound guide tube, and a limiting block is arranged outside the thread groove. A fixing ring is arranged on one side of the limiting block and connected with an earplug sleeve, a clamping groove is formed in the earplug sleeve, an annular protruding block is arranged on the side wall of the inner side of the earplug sleeve, an annular pit is formed in one side of the clamping groove, and one end of the earplug sleeve is connected with an earplug sleeve. The structure of the sound guide tube, the threaded groove, the limiting block, the fixing ring, the earplug sleeve, the clamping groove, the annular protruding block, the annular concave part and the earplug sleeve is utilized, and the problems that due to the fact that the silica gel earplug and an ear hole are in a negative pressure state, when the silica gel earplug is pulled out or adjusted every time, the silica gel earplug shifts and even falls off, sound leakage is caused, and use is inconvenient are solved.

Description

Technical Field

[0001] This utility model relates to the field of headphone technology, specifically to an in-ear headphone that avoids sound leakage. Background Technology

[0002] In-ear headphones insert the sound output end deeper into the user's outer ear and use the elastic deformation of silicone ear tips to adapt to the different contours of the user's outer ear. These headphones use silicone ear tips to seal the user's outer ear, thereby isolating external sounds and improving sound quality. In traditional in-ear headphones, the silicone ear tips are simply assembled by nesting them in slots.

[0003] Because the silicone earplugs are in a negative pressure state with the ear canal, the silicone earplugs will shift or even fall off every time they are pulled out or adjusted, causing sound leakage and inconvenience.

[0004] Therefore, it is particularly important to design an in-ear headphone that avoids sound leakage in order to overcome the above-mentioned technical defects and improve overall practicality. Utility Model Content

[0005] The purpose of this invention is to provide an in-ear headphone that avoids sound leakage, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An in-ear headphone designed to prevent sound leakage includes a headphone body, one end of which is connected to a headphone stem, and the other end of which is provided with a sound guide tube. The sound guide tube has a threaded groove along its circumference on its outer side, a limiting block is provided outside the threaded groove, a fixing ring is provided on one side of the limiting block, the fixing ring is connected to an earplug sleeve, the earplug sleeve has a slot inside, an annular protrusion is provided on the inner sidewall of the earplug sleeve, an annular recess is provided on one side of the slot, and one end of the earplug sleeve is connected to an earplug sleeve.

[0008] As a preferred embodiment of this utility model, the earplug cover has a double-layer structure, including an outer layer of ultra-soft silicone and an inner layer of memory foam.

[0009] As a preferred embodiment of this utility model, the earplug sleeve is made of a blend of polycarbonate and thermoplastic elastomer, and the annular protrusion and annular recess are made of silicone.

[0010] As a preferred embodiment of this utility model, the limiting block is adapted to the annular recess, and the limiting block can be displaced along the length direction of the sound guide tube.

[0011] As a preferred embodiment of this utility model, the slot and the fixing ring are adapted to each other and are connected by a snap-fit.

[0012] As a preferred embodiment of this utility model, the limiting block is made of a blend of polycarbonate and thermoplastic elastomer, and its cross-section has a wedge-shaped structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention utilizes an in-ear headphone designed to prevent sound leakage. The structure comprises a sound guide tube, threaded groove, limiting block, fixing ring, earplug sleeve, slot, annular protrusion, annular recess, and earplug sleeve. By machining a threaded groove in the sound guide tube and assembling a limiting block, the fixing ring and earplug sleeve are engaged and limited by the slot. Rotating the limiting block along the threaded groove moves it to press firmly against the annular recess. This, combined with the deformation of the ultra-soft silicone in the double-layer earplug sleeve and the delayed rebound of the memory foam, forms a dynamic seal. Finally, the axial displacement of the limiting block achieves a triple-layer anti-leakage structure of threaded limiting, snap-fit ​​constraint, and deformation compensation. This solves the problem of sound leakage and inconvenience caused by the silicone earplug shifting or even falling off during removal or adjustment due to the negative pressure between the silicone earplug and the ear canal. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the entire utility model;

[0016] Figure 2 This is a schematic diagram of the sound guide tube assembly of this utility model;

[0017] Figure 3 This is a schematic diagram of the planar structure of the sound guide tube assembly of this utility model.

[0018] In the diagram: 1. Headphone body; 101. Headphone stem; 102. Sound tube; 103. Threaded groove; 104. Limiting block; 105. Fixing ring; 106. Earplug sleeve; 107. Slot; 108. Annular protrusion; 109. Annular recess; 110. Earplug sleeve. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are provided. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0021] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] For examples, please refer to Figure 1-3 This utility model provides a technical solution:

[0024] An in-ear headphone designed to prevent sound leakage includes a headphone body 1. One end of the headphone body 1 is connected to a headphone stem 101, and the other end of the headphone body 1 is provided with a sound guide tube 102. A threaded groove 103 is provided along the circumference of the sound guide tube 102. A limiting block 104 is provided outside the threaded groove 103. A fixing ring 105 is provided on one side of the limiting block 104. The fixing ring 105 is connected to an earplug sleeve 106. A slot 107 is provided inside the earplug sleeve 106. An annular protrusion 108 is provided on the inner sidewall of the earplug sleeve 106. An annular recess 109 is provided on one side of the slot 107. One end of the earplug sleeve 106 is connected to an earplug sleeve 110. The sound guide tube 102 has a sound guide tube 102 on its outer wall. The threaded groove 103 is machined, and the limiting block 104 of polycarbonate / TPE blend material is assembled into the preset position of the threaded groove 103. Then, the fixing ring 105 and the earplug sleeve 106 are engaged and limited through the slot 107. Then, the limiting block 104 is rotated to move along the threaded groove 103 until it is in close contact with the annular recess 109, thus limiting the earplug sleeve 106. The double-layer earplug sleeve 110 achieves dynamic sealing through the initial deformation of the outer ultra-soft silicone and the delayed rebound of the inner memory foam. Finally, the limiting block 104 is adjusted to move axially along the sound tube 102, forming a triple anti-leakage system composed of threaded mechanical limiting, snap-fit ​​structure constraint and material deformation compensation.

[0025] The earbud sleeve 110 has a double-layer structure, consisting of an outer layer of ultra-soft silicone and an inner layer of memory foam. The outer layer of ultra-soft silicone provides an initial deformation seal, while the inner layer of memory foam continuously compensates for micro-deformation of the ear canal. The earbud tube 106 is made of a blend of polycarbonate and thermoplastic elastomer to ensure its resistance to bending. The annular protrusion 108 and annular recess 109 are made of silicone. The slot 107 engages with the retaining ring 105 to limit the position of the earbud tube. The limiting block 104... The limiting block 104 is adapted to the annular recess 109 and can be displaced along the length of the sound tube 102, so that the limiting block 105 can squeeze the annular recess 109 and limit the position of the earplug sleeve. The slot 107 is adapted to the fixing ring 105 for a snap-fit ​​connection, which helps to limit the position of the earplug sleeve. The limiting block 104 is made of a blend of polycarbonate and thermoplastic elastomer, and its cross-section is wedge-shaped to increase friction and prevent the earplug sleeve 106 from shifting.

[0026] The working process of this utility model is as follows: When using this type of in-ear headphone that avoids sound leakage, firstly, a threaded groove 103 is machined on the outer wall of the sound guide tube 102. The limiting block 104 made of polycarbonate / TPE blend material is assembled into the preset position of the threaded groove 103. Then, the fixing ring 105 and the earplug sleeve 106 are engaged and limited by the slot 107. Then, the limiting block 104 is rotated to move along the threaded groove 103 until it is in close contact with the annular recess 109, thus limiting the earplug sleeve 106. The double-layer earplug sleeve 110 achieves dynamic sealing through the initial deformation of the outer ultra-soft silicone and the delayed rebound of the inner memory foam. Finally, the limiting block 104 is adjusted to move axially along the sound guide tube 102, forming a triple sound leakage prevention system composed of threaded mechanical limiting, snap-fit ​​structure constraint and material deformation compensation.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An in-ear headphone that avoids sound leakage, comprising a headphone body (1), characterized in that: One end of the headphone body (1) is connected to the headphone stem (101), and the other end of the headphone body (1) is provided with a sound guide tube (102). The sound guide tube (102) has a threaded groove (103) along its circumference on the outside. A limiting block (104) is provided on the outside of the threaded groove (103). A fixing ring (105) is provided on one side of the limiting block (104). The fixing ring (105) is connected to the earplug sleeve (106). A slot (107) is provided inside the earplug sleeve (106). An annular protrusion (108) is provided on the inner side wall of the earplug sleeve (106). An annular recess (109) is provided on one side of the slot (107). One end of the earplug sleeve (106) is connected to the earplug sleeve (110).

2. The in-ear headphone for avoiding sound leakage according to claim 1, characterized in that: The earplug cover (110) has a double-layer structure, including an outer layer of ultra-soft silicone and an inner layer of memory foam.

3. An in-ear headphone for avoiding sound leakage according to claim 1, characterized in that: The earplug sleeve (106) is made of a blend of polycarbonate and thermoplastic elastomer, and the annular protrusion (108) and annular recess (109) are made of silicone.

4. An in-ear headphone for avoiding sound leakage according to claim 1, characterized in that: The limiting block (104) is adapted to the annular recess (109), and the limiting block (104) can be displaced along the length direction of the sound guide tube (102).

5. An in-ear headphone for avoiding sound leakage according to claim 1, characterized in that: The slot (107) is adapted to the fixing ring (105) for a snap-fit ​​connection.

6. An in-ear headphone for avoiding sound leakage according to claim 1, characterized in that: The limiting block (104) is made of a blend of polycarbonate and thermoplastic elastomer, and its cross-section has a wedge-shaped structure.

Images