Headphone headband adjusting structure

Abstract

The utility model discloses a headphone headband adjusting structure, which relates to the technical field of headphone headbands and comprises a headband, a fixed strip and a movable strip, the movable strip is provided with a rectangular slot, a T-shaped shaft fixedly connected with the fixed strip is arranged in the rectangular slot in a sliding manner, a movable plate is arranged on the T-shaped shaft in a sliding manner, and the movable plate is fixedly connected with the fixed strip. A plurality of clamping blocks are fixed to the top face of the movable strip at equal intervals, an insertion block fixedly connected with the bottom face of the movable plate is arranged between every two adjacent clamping blocks, and a synchronous force application part is arranged between every two T-shaped shafts. According to the utility model, through the arrangement of the synchronous force application part, the lifting assembly is simply and upwards pulled, so that the two movable belts synchronously contract to the inner side of the arc-shaped groove, and the extrusion assembly simultaneously applies upward acting force to the movable plates, so that the two movable plates synchronously slide along the corresponding T-shaped shaft rod bodies, and the fixation of the two movable strips is synchronously relieved; manual sequential operation is not needed, the working efficiency can be improved to a certain extent, and the practicability is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to headband technology field of head -wearing earphone, concretely relates to a head -wearing earphone headband adjusting structure. BACKGROUND

[0002] Earphone is divided by wearing mode and has in-ear earphone and head -wearing earphone etc., wherein, head -wearing earphone has headband and earshell at the left and right ends of headband, and needs to use two earshells to fix the ear in the use process.

[0003] The prior art patent no. CN221863053U headband leather sheath structure of head -wearing earphone, after adjusting the distance between earphone cover and headband to the appropriate size, the second block and the first block are mutually matched, and the earphone cover is fixed, the distance between the earphone cover and the headband is changed after the headband is separated from the head of the user, so that subsequent use is facilitated, and use is convenient;

[0004] But the fixing and unlocking of the two earphone covers of the above patent are carried out in sequence, cannot realize synchronization, need manual sliding activity plate on two fixed sleeves respectively, and the actual operation is complicated and laborious, and the working efficiency is low. UTILITY MODEL CONTENTS

[0005] To solve the above technical problem, a headband adjusting structure of head -wearing earphone is provided, which solves the problem that the fixing and unlocking of the two earphone covers in the prior art are carried out in sequence, cannot realize synchronization, need manual sliding activity plate on two fixed sleeves respectively, and the actual operation is complicated and laborious, and the working efficiency is low.

[0006] To achieve the above purpose, the utility model adopts the technical scheme that a headband adjusting structure of head -wearing earphone includes headband, fixed strip fixed at both ends of the headband and movable strip slidingly arranged on the fixed strip, rectangular slot is formed in the movable strip, T-shaped shaft fixedly connected with the fixed strip is slidingly arranged in the rectangular slot, movable plate is slidingly arranged on the T-shaped shaft, the top surface of the movable strip is equidistantly fixed with a plurality of blocks, the block between two adjacent blocks is provided with the plug fixedly connected with the bottom surface of the movable plate, and the synchronous force applying part is arranged between the two T-shaped shafts.

[0007] The synchronous force applying part comprises an arc-shaped slot arranged in the inner wall of the headband, two movable bands symmetrically arranged in the arc-shaped slot, and a pulling assembly arranged between the two movable bands.

[0008] Preferably, the pulling assembly comprises a pulling block in the shape of inverted L and fixed to the top surface of the movable plate, and the band of the movable band is fixed with a pressure applying block in the shape of right trapezoid, and the end of the pulling block is in abutment with the inclined surface of the pressure applying block.

[0009] Preferably, the pulling assembly is a pulling band arranged outside the pressure applying block, and the two ends of the pulling band are arranged in the arc-shaped slot and fixed to the two movable bands respectively.

[0010] Preferably, the bottom surface of the movable band is attached with an arc-shaped bottom plate fixed to the end of the headband, and the two sides of the movable band are slidably arranged with arc-shaped sliding rails fixed to the top surface of the arc-shaped bottom plate.

[0011] Preferably, the end of the arc-shaped bottom plate is fixed with a connecting piece, and the connecting piece is fixed with an elastic band between the movable band.

[0012] Compared with the prior art, the present application has the advantages that the synchronous force applying part is arranged to simply pull the pulling assembly, the two movable bands are synchronously retracted into the arc-shaped slot, the movable plate is simultaneously subjected to upward force by the squeezing assembly, the two movable plates are synchronously slid along the corresponding T-shaped shaft, the fixation of the two movable strips is simultaneously released, and compared with the prior art, the operation is not required to be sequentially performed by manual operation, the working efficiency is improved to a certain extent, and the practicability is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0014] Figure 2 It is a schematic diagram of the internal structure of the present application;

[0015] Figure 3 It is a schematic diagram of the internal structure of the present application; Figure 2 It is a schematic diagram of the structure of A in the present application.

[0016] Reference numerals in the drawing are:

[0017] 1 headband; 2 fixed strip; 3 movable strip; 4 T-shaped shaft; 5 movable plate; 6 spring; 7 clamping block; 8 pulling block; 9 arc-shaped groove; 10 movable belt; 11 pressing block; 12 pulling belt; 13 arc-shaped bottom plate; 14 arc-shaped sliding rail; 15 connecting piece; 16 elastic belt. DETAILED DESCRIPTION

[0018] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments in the following description are only as examples, and other obvious modifications can be thought of by those skilled in the art.

[0019] Referring to Figures 1-3 As shown in the figure, a headphone headband adjusting structure comprises a headband 1, fixed strips 2 fixed at both ends of the headband 1 and movable strips 3 slidingly arranged on the fixed strips 2, the bottom end of the movable strip 3 is fixed with a headphone cover, a rectangular slot is formed in the movable strip 3, a T-shaped shaft 4 fixedly connected with the fixed strip 2 is slidingly arranged in the rectangular slot, a movable plate 5 located above the movable strip 3 is slidingly arranged on the T-shaped shaft 4, a plurality of clamping blocks 7 are equidistantly fixed on the top surface of the movable strip 3, an insertion block fixedly connected with the bottom surface of the movable plate 5 is arranged between two adjacent clamping blocks 7, a spring 6 is further sleeved on the T-shaped shaft 4, and the two ends of the spring 6 are fixedly connected with the movable plate 5 and the horizontal section of the T-shaped shaft 4 respectively;

[0020] In use, when the distance between the headphone cover and the headband 1 needs to be adjusted, the user needs to pull the movable plate 5 up on the T-shaped shaft 4 and compress the spring 6 to deform, so that the insertion block is withdrawn from between the two adjacent clamping blocks 7, that is, the fixing of the movable strip 3 is released, then the movable strip 3 is moved, the movable strip 3 moves outside the T-shaped shaft 4 through the slot, so as to adjust the distance between the headphone cover and the headband 1, after the distance between the headphone cover and the headband 1 is adjusted to an appropriate size, the force acting on the movable plate 5 is released, the movable plate 5 drives the insertion block to be reinserted between the two adjacent clamping blocks 7 under the action of the spring 6, and the movable strip 3 is fixed again to limit the position of the headphone cover.

[0021] Further, referring to Figure 2 and Figure 3 It is worth noting that a synchronous force applying part is arranged between the two T-shaped shafts 4;

[0022] The synchronous force applying part comprises an arc-shaped groove 9 arranged in the inner wall of the headband 1, two movable belts 10 symmetrically slidingly arranged on the two sides inside the arc-shaped groove 9 and a pulling assembly arranged between the two movable belts 10, the movable belts 10 are arranged on the belts outside the headband 1, and the two T-shaped shafts 4 are located in the two rectangular avoiding openings respectively, and the rectangular avoiding openings are further provided with extrusion assemblies for pulling the movable plate 5 upward;

[0023] Through the setting of the synchronous force applying part, the simple pulling assembly is pulled up, the two movable belts 10 are synchronously contracted inside the arc-shaped groove 9, the squeezing assembly simultaneously exerts an upward force on the movable plate 5, the two movable plates 5 are synchronously slid along the corresponding T-shaped shaft 4, the fixing on the two movable strips 3 is simultaneously released, and compared with the prior art, manual operation is not required, the operation efficiency is improved to a certain extent, and the practicability is enhanced.

[0024] Further, referring to Figure 3 It is worth noting that the squeezing assembly comprises a pulling block 8 in an inverted L shape and fixed to the top surface of the movable plate 5, and the belt body of the movable belt 10 is fixed with a pressure applying block 11 in a right trapezoidal shape, and the end of the pulling block 8 abuts against the inclined surface of the pressure applying block 11.

[0025] When the movable belt 10 is contracted inside the arc-shaped groove 9, the pressure applying block 11 can synchronously move the movable belt 10, so that the inclined edge continuously contacts the end of the pulling block 8, thereby forming an upward force on the movable plate 5, so that the movable plate 5 slides along the T-shaped shaft 4.

[0026] Further, referring to Figure 2 It is worth noting that the pulling assembly is a pulling belt 12 located outside the pressure applying block 11, and both ends of the pulling belt 12 penetrate into the arc-shaped groove 9 and are respectively fixed to the two movable belts 10.

[0027] Pulling the pulling belt 12 outside the headband 1, both ends of the pulling belt 12 can synchronously form a pulling effect on the two movable belts 10, and the two movable belts 10 are synchronously contracted inside the arc-shaped groove 9.

[0028] Further, referring to Figure 3 It is worth noting that the bottom surface of the movable belt 10 is attached with an arc-shaped bottom plate 13 fixed to the end of the headband 1, and the two sides of the movable belt 10 are slidingly clamped with an arc-shaped sliding rail 14 fixed to the top surface of the arc-shaped bottom plate 13.

[0029] When the movable belt 10 is contracted inside the arc-shaped groove 9, the two sides of the movable belt 10 are synchronously slid inside the two arc-shaped sliding rails 14, and the two arc-shaped sliding rails 14 cooperatively effectively limit the movement track of the movable belt 10.

[0030] Further, referring to Figure 3 It is worth noting that the end of the arc-shaped bottom plate 13 is fixed with a connecting piece 15, and the connecting piece 15 is fixed with an elastic belt 16 between the movable belt 10.

[0031] Through the setting of the elastic band 16, when the movable band 10 is forced to contract inside the arc-shaped groove 9, the movable band 10 can synchronously stretch the elastic band 16, and then, by using the elastic force of the elastic band 16, when the pulling of the pulling band 12 is released, the movable band 10 can quickly reset, reduce the extrusion of the pressing block 11 to the pulling block 8, and make the active plate 5 reset under the elastic force of the spring 6, so as to re-achieve the locking of the movable strip 3.

[0032] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A headphone headband adjusting structure, comprising a headband (1), fixed bars (2) fixed to both ends of the headband (1), and a movable bar (3) slidingly arranged on the fixed bars (2), wherein a rectangular slot is formed on the movable bar (3), a T-shaped shaft (4) fixedly connected with the fixed bars (2) is slidingly arranged in the rectangular slot, a movable plate (5) is slidingly arranged on the T-shaped shaft (4), the top surface of the movable bar (3) is equidistantly fixed with a plurality of clamping blocks (7), and an insertion block fixedly connected with the bottom surface of the movable plate (5) is arranged between two adjacent clamping blocks (7). Two T-shaped shafts (4) are provided with a synchronous force applying part; The synchronous force applying part comprises an arc-shaped slot (9) provided in the inner wall of the headband (1), two movable belts (10) symmetrically provided in the arc-shaped slot (9), and a pulling assembly provided between the two movable belts (10). Rectangular avoiding openings are formed on the belts outside the headband (1), and the two T-shaped shafts (4) are located in the two rectangular avoiding openings, respectively. The rectangular avoiding openings are also provided with extrusion assemblies for pulling the movable plate (5).

2. The headband adjustment structure of claim 1, wherein, The extrusion assembly comprises a pulling block (8) in the shape of inverted L and fixed to the top surface of the movable plate (5), and a pressure applying block (11) in the shape of right trapezoid fixed to the belt of the movable belt (10). The end of the pulling block (8) is in abutment with the inclined surface of the pressure applying block (11).

3. The headband adjustment structure of claim 2, wherein, The pulling assembly is a pulling belt (12) located outside the pressure applying block (11). The two ends of the pulling belt (12) are inserted into the arc-shaped slot (9) and fixed to the two movable belts (10), respectively.

4. The headband adjustment structure of claim 1, wherein, The bottom surface of the movable belt (10) is attached with an arc-shaped bottom plate (13) fixed to the end of the headband (1). The two sides of the movable belt (10) are slidably clamped with arc-shaped sliding rails (14) fixed to the top surface of the arc-shaped bottom plate (13).

5. The headphone headband adjustment structure of claim 4, wherein, The end of the arc-shaped bottom plate (13) is fixed with a connecting piece (15), and the connecting piece (15) is fixed with an elastic belt (16) between the movable belt (10).

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