Headset clamping force test fixture

Abstract

The utility model discloses a headset clamping force test fixture, including base, first lap joint spare, second lap joint spare and pressure measuring device. First lap joint spare is connected in base, and second lap joint spare is connected in base and is located first lap joint spare one side, and first lap joint spare and second lap joint spare are in turn along the distribution of X axle direction, and first lap joint spare and second lap joint spare at least one is provided with pressure measuring device, and pressure measuring device is configured as detecting the pressure that ear cover exerts to first lap joint spare and / or second lap joint spare, and pressure measuring device has integrated measurement module and display module. Through pressure measuring device, the pressure that ear cover exerts to lap joint spare can be directly detected, thereby realizes the measurement to earphone clamping force, and has improved the accuracy and repeatability of test data. Compared with the traditional measurement tension mode needs to hang the tension meter of hook, and the measurement result is more stable.

Description

Technical Field

[0001] This utility model relates to the field of headphone testing fixtures, and in particular to a headphone clamping force testing fixture. Background Technology

[0002] Over-ear headphones rely on the elasticity of the headband to provide clamping force to the earcups to secure them to the user's head. During headphone production, the clamping force of the earcups needs to be tested to ensure that the clamping force is within the set range, thus ensuring the comfort of using over-ear headphones. For over-ear Bluetooth headphones or over-ear noise-canceling headphones, a certain clamping force is even more necessary to ensure the effectiveness of isolating external noise.

[0003] Commonly available headphone clamping force testing fixtures typically employ a structure where a force gauge is fixed to one side, connected to the headphone earcups via hooks, and a pulling force is applied to measure the clamping force. This type of fixture, requiring a relatively long force gauge and hook connection on one side, results in a large overall length, bulky structure, and significant space consumption. Furthermore, the hook connection method is susceptible to introducing testing errors if the connection is not secure or the hooks become loose, affecting the accuracy and consistency of the measurement results. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a headphone clamping force testing fixture, which can reduce the size of the fixture while improving the stability of the test.

[0005] A headphone clamping force testing fixture according to an embodiment of the present invention includes: a base, a first connector, a second connector, and a pressure measuring device. The first connector is connected to the base; the second connector is connected to the base and located on one side of the first connector, and the first connector and the second connector are distributed sequentially along the X-axis direction; at least one of the first connector and the second connector is provided with the pressure measuring device, the pressure measuring device being configured to detect the pressure exerted by the earcups on the first connector and / or the second connector, and the pressure measuring device integrating a measuring module and a display module.

[0006] The headphone clamping force testing fixture according to the embodiments of this utility model has at least the following beneficial effects: By setting a base as a basic support platform, the stability and reliability of the testing process are ensured. The pressure measuring device can directly detect the pressure exerted by the earcups on the connectors, thereby realizing the measurement of the headphone clamping force and improving the accuracy and repeatability of the test data. Compared with the traditional method of measuring tensile force, which requires a hook to hang a force gauge, the method of directly connecting the pressure measuring device to the first connector and / or the second connector and measuring the pressure does not require a hook, making the measurement results more stable.

[0007] According to some embodiments of the present invention, it also includes an earphone holder connected to the base, the earphone holder being used to support the headband, and the first connecting member, the earphone holder, and the second connecting member being distributed sequentially along the X-axis direction.

[0008] According to some embodiments of this utility model, it also includes a multi-model adapter component, wherein the first connector and the second connector can move relative to each other to adjust the distance between the first connector and the second connector in the X-axis direction, and the headphone holder is movably connected to the base along the X-axis direction.

[0009] According to some embodiments of the present invention, the pressure measuring device is in two sets, and the two sets of pressure measuring devices are respectively connected to the first overlapping member and the second overlapping member.

[0010] According to some embodiments of this utility model, it further includes a multi-model adapter component, which includes a slide rail, a connector sliding seat, a placement bracket sliding seat, and a second locking mechanism. The slide rail is connected to the base along the X-axis direction. The connector sliding seat is slidably disposed on the slide rail. The second connector is connected to the connector sliding seat. The movement of the connector sliding seat can change the distance between the first connector and the second connector. The placement bracket sliding seat is slidably connected to the slide rail. The earphone placement bracket is connected to the placement bracket sliding seat. The sliding of the placement bracket sliding seat along the slide rail can change the relative position of the earphone placement bracket and the first connector. The second locking mechanism is connected to the placement bracket sliding seat and is used to fix the relative position between the placement bracket sliding seat and the slide rail.

[0011] According to some embodiments of the present invention, the multi-model adapter component further includes a first locking mechanism, which is movably connected to the overlapping member sliding seat and is used to lock the relative position of the overlapping member sliding seat and the slide rail.

[0012] According to some embodiments of the present invention, the first locking mechanism includes a locking base, a first locking seat, and a first locking member. The locking base is connected to the base and is arranged along the X-axis. The first locking seat is connected to the sliding seat of the connecting member. The first locking member is screwed onto the first locking seat and one end of the first locking member can abut against the locking base.

[0013] According to some embodiments of the present invention, the earphone holder includes a base component, a lifting component, and fasteners. The base component is connected to the sliding seat of the holder. The lifting component is vertically connected to the base component. The fasteners are screwed onto the base component and one end abuts against the surface of the lifting component. The lifting component is provided with a height scale. The upper end of the lifting component is provided with a headband connector, and the earphone headband is attached to the headband connector.

[0014] According to some embodiments of the present invention, the base is provided with a distance scale, which is set along the X-axis direction and is used to measure the moving distance of the sliding seat of the overlapping component and the sliding seat of the placement frame.

[0015] According to some embodiments of the present invention, both the placement rack sliding seat and the overlapping member sliding seat are provided with a scale protrusion, and the projection of the scale protrusion along the Z-axis on the upper surface of the base coincides with the projection of the distance scale along the Z-axis on the upper surface of the base.

[0016] According to some embodiments of the present invention, the base further includes at least two blocking members, which are respectively located at both ends of the slide rail in the X-axis direction. The blocking members can abut against the overlapping member sliding seat and the placement rack sliding seat to restrict the overlapping member sliding seat and the placement rack sliding seat from separating from the slide rail.

[0017] Additional aspects and advantages of this invention 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 invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 1 ; Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 2 (Headphones omitted); Figure 3 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 3 (Headphones omitted); Figure 4 This is a top view of an embodiment of the present utility model; Figure 5 This is a schematic diagram of the structure of the multi-model adapter components according to an embodiment of the present invention; Figure 6 This is a top view of the multi-model adapter components according to an embodiment of the present utility model; Figure 7 for Figure 6A magnified view of a section at point A in the middle; Figure 8 This is a schematic diagram of the headphone holder according to an embodiment of the present invention; Figure 9 This is a top view of the headphone holder according to an embodiment of the present invention; Figure 10 for Figure 9 Sectional view of section BB; Figure 11 This is a schematic diagram of the structure of a headset.

[0019] Figure label: Base 10, Distance scale 11; 20. Headphone holder; 21. Base component; 22. Lifting component; 23. Fastener; 24. Headband connector; First lap joint 30; Second lap joint 40; Pressure measuring device 50; Multi-model adapter components 60 include slide rail 61, overlapping sliding seat 62, first locking mechanism 63, locking base 631, first locking seat 632, first locking component 633, placement rack sliding seat 64, second locking mechanism 65, second locking seat 651, second locking stud 652, and blocking component 66; The scale protrudes 70 degrees; Headphones 80, headband 81, earmuffs 82. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as hindering this utility model.

[0021] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as an obstacle to this utility model.

[0022] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0024] Reference Figure 11 A typical over-ear headphone 80 includes a headband 81 and two earcups 82. Currently, common headphone clamping force testing fixtures on the market usually employ a structure where a force gauge is fixed to one side, connected to the earcups 82 via hooks, and a pulling force is applied to measure the clamping force. This type of fixture, due to the need for a relatively long force gauge and hook connection structure on one side, results in a large overall length, bulky structure, and significant space consumption. Furthermore, because of the hook connection method, insecure attachment or loose hooks can easily introduce testing errors, affecting the accuracy and consistency of the measurement results.

[0025] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a headphone clamping force testing fixture, which can reduce the size of the fixture while improving the stability of the test.

[0026] Reference Figures 1 to 10 The headphone clamping force testing fixture includes: a base 10, a first connector 30, a second connector 40, and a pressure measuring device 50.

[0027] The first connector 30 is connected to the base 10; the second connector 40 is connected to the base 10 and located on one side of the first connector 30, and the first connector 30 and the second connector 40 are distributed sequentially along the X-axis direction; at least one of the first connector 30 and the second connector 40 is provided with a pressure measuring device 50, which is configured to detect the pressure applied by the earmuff 82 to the first connector 30 and / or the second connector 40, and the pressure measuring device 50 integrates a measuring module and a display module.

[0028] In this embodiment of the invention, the base 10 serves as a basic support platform, ensuring stability and reliability during the testing process. The pressure measuring device 50 can directly detect the pressure exerted by the earcups 82 on the connectors, thereby measuring the earphone clamping force and improving the accuracy and repeatability of the test data. Compared to traditional methods of measuring tensile force that require a hook to attach a force gauge, the pressure measuring device 50 is directly connected to the first connector 30 and / or the second connector 40 to measure the pressure, eliminating the need for a hook and making the measurement results more stable.

[0029] It should be noted that, through the above structural design, this utility model replaces traditional tensile force measurement with pressure measurement, avoiding the use of a tensile gauge, reducing the overall size of the fixture, and improving the portability and applicability of the equipment; at the same time, it eliminates the hook connection method, effectively avoiding measurement errors caused by unstable connection, and improving the accuracy and reliability of test results.

[0030] It should be noted that in some other embodiments of this utility model, the first overlapping member 30 and the second overlapping member 40 are an integral structure.

[0031] When the headphones 80 to be measured are of uniform size, the first connector 30 and the second connector 40 can be fixed as a whole on the base 10 without adjusting the distance between them. At the same time, the relative positions of the headphone holder 20 and the base 10 are fixed, so there is no need to move the first connector 30, the second connector 40 and the headphone holder 20 during measurement, which improves the stability and efficiency of the measurement results.

[0032] It should be noted that in some embodiments of this utility model, the pressure measuring device 50 may be a device that integrates a measuring module (such as a pressure sensor) and a display module, such as, but not limited to, a digital electronic scale.

[0033] An electronic scale, purchased commercially, can be directly installed on at least one of the first and second connectors 30 and 40. The scale can then be used to measure the pressure exerted by the earcups 82 on the first and / or second connectors 30. Furthermore, the electronic scale replaces the traditional method of "partially connecting the earcup 82 with a hook and applying tension to measure the clamping force," reducing the fixture's size in the X-axis direction and improving its portability.

[0034] Meanwhile, the electronic scale integrates a pressure sensor and a display module. By integrating the pressure sensor and display module into one unit, the electronic scale serves as a pressure measuring device 50. It is installed on at least one of the first and second connecting parts to measure the clamping force of the ear cover 82. This avoids the electronic scale moving as a whole when the first and second connecting parts move, and avoids interference from the wiring to the movement of the first and second connecting parts when the pressure sensor and display module are separated. This improves the measurement frequency and measurement efficiency.

[0035] It is worth noting that, referring to Figures 1 to 3 In some embodiments of this utility model, the headphone clamping force testing fixture also includes a headphone placement bracket 20, which is connected to the base 10 and is used to support the headband 81. The first connecting member 30, the headphone placement bracket 20, and the second connecting member 40 are distributed sequentially along the X-axis direction.

[0036] The headphone holder 20 is used to simulate the support of the human head, allowing the headband 81 to overlap naturally and more realistically reproduce the actual wearing state. The first overlap piece 30 and the second overlap piece 40 are located on both sides of the headphone holder 20, forming a symmetrical structure, which can accurately simulate the clamping effect of the earcups 82 on the head.

[0037] Reference Figure 3 as well as Figures 5 to 7 In some embodiments of this utility model, the first connecting member 30 and the second connecting member 40 can move relative to each other to adjust the distance between the first connecting member 30 and the second connecting member 40 in the X-axis direction, and the headphone holder 20 is movably connected to the base 10 along the X-axis direction.

[0038] Understandably, by moving the first connector 30 and the second connector 40 relative to each other, it is possible to adapt to the measurement of the clamping force of headphones of different sizes. By moving the headphone holder 20, it is possible to ensure the support of the headband 81 during the measurement, so as to simulate the support of the top of the human head on the headband 81, thereby achieving a more stable measurement result.

[0039] It should be noted that in the prior art, another method uses a pressure sensor to measure the clamping force of the earmuff 82 and obtains the measurement data through an external display device. The pressure measuring device 50 integrates a measuring module and a display module, and is installed on at least one of the first and second connecting parts 30 and 40 to measure the clamping force of the earmuff 82. The movement of the first and second connecting parts 30 and 40 causes the pressure measuring device 50 to move as a whole. This avoids interference from the connection lines between the measuring module and the display module when they are separated, thus improving the measurement frequency and efficiency.

[0040] In some embodiments of this utility model, the pressure measuring device 50 is in two sets, and the two sets of pressure measuring devices 50 are respectively connected to the first overlapping member 30 and the second overlapping member 40.

[0041] Understandably, the two sets of pressure measuring devices 50 can measure the pressure of the earmuff 82 on the first overlapping member 30 and the second overlapping member 40 respectively. During the measurement, theoretically, the readings of the two sets of pressure measuring devices 50 should be the same. If the readings are different but the difference is small, the average value of the two can be calculated to determine the clamping force. If the readings are different but the difference is large, it means that the measurement is inaccurate and needs to be measured again.

[0042] The headphone clamping force testing fixture of this utility model also includes a multi-model adapter component 60, which is connected to the base 10. The multi-model adapter component 60 is used to adjust the distance between the first connecting piece 30 and the second connecting piece 40. The headphone placement bracket 20 is connected to the multi-model adapter component 60, which is used to adjust the position of the headphone placement bracket 20 in the X-axis direction.

[0043] In some embodiments of this utility model, the multi-model adapter component 60 expands the applicability of the fixture. By adjusting the distance between the first connector 30 and the second connector 40, it can adapt to headphones of different sizes and models without replacing fixture parts, thus improving testing efficiency and equipment utilization.

[0044] Reference Figure 1 and Figure 3 The multi-model adapter component 60 includes a slide rail 61, a connector sliding seat 62, a placement bracket sliding seat 64, and a second locking mechanism 65. The slide rail 61 is connected to the base 10 along the X-axis. The connector sliding seat 62 is slidably disposed on the slide rail 61. The second connector 40 is connected to the connector sliding seat 62. The movement of the connector sliding seat 62 can change the distance between the first connector 30 and the second connector 40. The placement bracket sliding seat 64 is slidably connected to the slide rail 61. The headphone placement bracket 20 is connected to the placement bracket sliding seat 64. The placement bracket sliding seat 64 can change the relative position of the headphone placement bracket 20 and the first connector 30 by sliding along the slide rail 61. The second locking mechanism 65 is connected to the placement bracket sliding seat 64 and is used to fix the relative position between the placement bracket sliding seat 64 and the slide rail 61.

[0045] It should be noted that, in the embodiments of this utility model, the cooperation between the slide rail 61 and the overlapping member sliding seat 62 enables continuous adjustment of the position of the second overlapping member 40, resulting in a simple structure and convenient operation. The first locking mechanism 63 ensures that the overlapping member sliding seat 62 and the slide rail 61 remain fixed during the test, preventing displacement from affecting the test results and improving test stability.

[0046] Specifically, in the embodiments of this utility model, when measuring the larger size of the earphone 80, because the width between its two earcups 82 is relatively wide, it is necessary to use a multi-model adapter component 60 to adjust the width between the first connecting piece 30 and the second connecting piece 40. The operator can use various driving methods such as manual, linear motor drive, and cylinder drive to drive the connecting piece sliding seat 62 and the placement bracket sliding seat 64 to slide along the slide rail 61. When the placement bracket sliding seat 64 slides so that the earphone placement bracket 20 is located in the middle position of the first connecting piece 30 and the second connecting piece 40 as required by the design, the placement bracket sliding seat 64 is locked by the second locking mechanism 65. When the connecting piece sliding seat 62 moves to the designed position, the operator can read the pressure data displayed by the pressure measuring device 50 at that time and convert it to obtain the clamping force data.

[0047] When measuring the size of a small headphone 80, the operator can use various driving methods such as manual, linear motor drive, and cylinder drive to drive the sliding seat 62 of the connector and the sliding seat 64 of the placement rack to slide along the slide rail 61. When the sliding seat 64 of the placement rack slides so that the headphone placement rack 20 is in the middle position of the first connector 30 and the second connector 40 as required by the design, the sliding seat 64 of the placement rack is locked by the second locking mechanism 65. When the sliding seat 62 of the connector moves to the designed position, the operator can read the pressure data displayed by the pressure measuring device 50 at that time and convert it to obtain the clamping force data.

[0048] Reference Figure 3 The multi-model adapter also includes a first locking mechanism 63, which is movably connected to the lap member sliding seat 62 and is used to lock the relative position of the lap member sliding seat 62 and the slide rail 61.

[0049] It is understood that in the embodiments of this utility model, when it is necessary to change the size of the measuring earphone 80, after adjusting the distance between the first connector 30 and the second connector 40, the relative position of the connector sliding seat 62 and the base 10 can be locked by the first locking mechanism 63 for subsequent measurement.

[0050] Reference Figure 3 The first locking mechanism 63 includes a locking base 631, a first locking seat 632, and a first locking member 633. The locking base 631 is connected to the base 10 and is arranged parallel to the slide rail 61. The first locking seat 632 is connected to the connecting member sliding seat 62. The first locking member 633 is screwed onto the first locking seat 632, and one end of the first locking member 633 can abut against the locking base 631.

[0051] Understandably, the first locking mechanism 63 achieves positional fixation through the abutment of the first locking element 633 and the locking base element 631. This structure is simple, reliable, and easy to adjust, exhibiting excellent anti-loosening performance. It effectively maintains the sliding seat 62 of the overlapping component in the set position, ensuring test repeatability. This mechanical locking method achieves reliable locking through threaded force amplification. It is simple, durable, and inexpensive, requiring no additional tools and suitable for high-frequency adjustment and locking needs.

[0052] It should be noted that by setting the locking base component 631, the first locking component 633 can be prevented from directly abutting against the slide rail 61, thereby preventing the slide rail 61 from wearing and deforming under long-term use. When the locking base component 631 wears and deforms under long-term use, it can be easily replaced, reducing the maintenance cost of the fixture.

[0053] It should be noted that in some embodiments of this utility model, the locking base 631 is a long strip-shaped component extending along the X-axis direction, and the locking base 631 is detachably connected to the base 10.

[0054] Reference Figure 3 In some embodiments of this utility model, the multi-model adapter component 60 further includes a second locking mechanism 65, which is connected to the placement rack slide seat 64 and is used to fix the relative position between the placement rack slide seat 64 and the slide rail 61.

[0055] It is understood that, in the embodiments of this utility model, the relative position of the headphone holder 20 and the first connecting member 30 can be adjusted by the sliding bracket sliding seat 64, ensuring that the headphone holder 20 can always be adjusted to the middle position between the first connecting member 30 and the second connecting member 40, thereby improving the stability of the measurement. The second locking mechanism 65 ensures that the headphone holder 20 is fixed in position during the test, improving the consistency and accuracy of the test.

[0056] Reference Figure 3 In some embodiments of this utility model, the second locking mechanism 65 includes a second locking seat 651 and a second locking stud 652. The second locking seat 651 is connected to the placement bracket sliding seat 64, and the second locking stud 652 is screwed onto the second locking seat 651. One end of the second locking stud 652 can abut against the locking base member 631.

[0057] Understandably, the second locking mechanism 65 has the same structure as the first locking mechanism 63. It locks the sliding seat 64 of the placement frame by abutting against the locking base 631 with the second locking stud 652, thereby improving the stability during testing. The threaded locking has a self-locking characteristic, which can maintain the stability of the position even under vibration testing environment. At the same time, it makes it easy for operators to judge the degree of tightening by feel, reducing test deviations caused by under-tightening or over-tightening.

[0058] Reference Figure 2 as well as Figures 8 to 10 The headphone holder 20 includes a base component 21, a lifting component 22, and a fastener 23. The base component 21 is connected to the holder sliding seat 64. The lifting component 22 is vertically connected to the base component 21. The fastener 23 is screwed onto the base component 21 and one end abuts against the surface of the lifting component 22. The lifting component 22 is provided with a height scale. The upper end of the lifting component 22 is provided with a headband connector 24, and the headphone headband is attached to the headband connector 24.

[0059] Understandably, the headphone holder 20 is height-adjustable to accommodate different curvatures of the headband 81 and wearing conditions. A height gauge facilitates precise control of the lifting height, fasteners 23 ensure the lifting mechanism 22 remains stable at the set height, and the design of the headband overlap 24 makes the headband 81 overlap more secure, making the test more consistent with actual usage.

[0060] It is understood that in some embodiments of this utility model, the headphone holder 20 simulates the support of the head on the headband 81 from the top of the head. The relative position of the headphone holder 20 and the first connecting piece 30 can be adjusted by sliding the holder slide seat 64 to ensure that the headphone holder 20 can always be adjusted to the middle position between the first connecting piece 30 and the second connecting piece 40, simulating the clamping of the head on both sides of the headphone, thereby accurately simulating the usage scenario of the headphone for measurement and obtaining a more accurate clamping force.

[0061] Reference Figure 1 and Figure 4 In some embodiments of this utility model, a distance scale 11 is provided on the base 10. The distance scale 11 is set along the X-axis and is used to measure the moving distance of the overlapping component sliding seat 62 and the placement rack sliding seat 64. The distance scale 11 can quickly and accurately determine the moving target position of the placement rack sliding seat 64 and the overlapping component sliding seat 62, improving the ease of use.

[0062] Reference Figure 1 and Figure 4 In some embodiments of this utility model, both the placement rack sliding seat 64 and the overlapping member sliding seat 62 are provided with a scale protrusion 70. The projection of the scale protrusion 70 along the Z-axis direction on the upper surface of the base 10 coincides with the projection of the distance scale 11 along the Z-axis direction on the upper surface of the base 10.

[0063] It is understood that in some embodiments of this utility model, the cooperation between the distance scale 11 and the scale protrusion 70 enables accurate reading of the sliding seat position, which facilitates the staff to quickly and accurately adjust the position of the placement frame sliding seat 64 and the overlapping component sliding seat 62, thereby improving testing efficiency and the consistency of results.

[0064] Reference Figure 2 and Figure 3 The base 10 also includes at least two blocking members 66, which are located at both ends of the slide rail 61 in the X-axis direction. The blocking members 66 can abut against the overlapping member sliding seat 62 and the placement rack sliding seat 64 to restrict the overlapping member sliding seat 62 and the placement rack sliding seat 64 from separating from the slide rail 61.

[0065] It is understood that in some embodiments of this utility model, the blocking member 66 effectively limits the range of movement on the overlapping member sliding seat 62 and the placement rack sliding seat 64, preventing them from dislodging from the slide rail 61, enhancing the safety and reliability of equipment operation, and avoiding equipment damage or test interruption caused by the dislodging of the sliding parts.

[0066] It is worth noting that the X-axis direction in this article is the same as the X-axis direction shown in the coordinate system of the accompanying diagram.

[0067] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention. Furthermore, in the description of the present invention, the reference to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicates that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A fixture for testing the clamping force of headphones, characterized in that, include: Base; The first connecting piece is connected to the base; The second lap member is connected to the base and located on one side of the first lap member. The first lap member and the second lap member are distributed sequentially along the X-axis direction. A pressure measuring device is provided on at least one of the first and second overlap members, the pressure measuring device being configured to detect the pressure exerted by the earmuff on the first and / or second overlap members, the pressure measuring device integrating a measuring module and a display module.

2. The headphone clamping force testing fixture according to claim 1, characterized in that, It also includes an earphone holder connected to the base, the earphone holder being used to support the headband, and the first connector, the earphone holder, and the second connector being distributed sequentially along the X-axis.

3. The headphone clamping force testing fixture according to claim 2, characterized in that, The first and second connecting pieces can move relative to each other to adjust the distance between them in the X-axis direction, and the headphone holder is movably connected to the base along the X-axis direction.

4. The headphone clamping force testing fixture according to claim 2 or 3, characterized in that, The pressure measuring device consists of two sets, which are respectively connected to the first overlapping member and the second overlapping member.

5. The headphone clamping force testing fixture according to claim 3, characterized in that, It also includes multiple model adapter components, which include a slide rail, a connector sliding seat, a placement bracket sliding seat, and a second locking mechanism. The slide rail is connected to the base along the X-axis. The connector sliding seat is slidably disposed on the slide rail. The second connector is connected to the connector sliding seat. The movement of the connector sliding seat can change the distance between the first connector and the second connector. The placement bracket sliding seat is slidably connected to the slide rail. The earphone placement bracket is connected to the placement bracket sliding seat. The sliding of the placement bracket sliding seat along the slide rail can change the relative position of the earphone placement bracket and the first connector. The second locking mechanism is connected to the placement bracket sliding seat and is used to fix the relative position between the placement bracket sliding seat and the slide rail.

6. The headphone clamping force testing fixture according to claim 5, characterized in that, The multi-model adapter component also includes a first locking mechanism, which is movably connected to the lap joint sliding seat and is used to lock the relative position of the lap joint sliding seat and the slide rail.

7. The headphone clamping force testing fixture according to claim 6, characterized in that, The first locking mechanism includes a locking base, a first locking seat, and a first locking member. The locking base is connected to the base and is arranged along the X-axis. The first locking seat is connected to the sliding seat of the connecting member. The first locking member is screwed onto the first locking seat, and one end of the first locking member can abut against the locking base.

8. The headphone clamping force testing fixture according to claim 5, characterized in that, The headphone holder includes a base component, a lifting component, and fasteners. The base component is connected to the sliding seat of the holder. The lifting component is vertically connected to the base component. The fasteners are screwed onto the base component and one end abuts against the surface of the lifting component. The lifting component is provided with a height scale. The upper end of the lifting component is provided with a headband connector, and the headphone headband is attached to the headband connector.

9. The headphone clamping force testing fixture according to claim 5, characterized in that, The base is provided with a distance scale, which is set along the X-axis and is used to measure the moving distance of the overlapping component sliding seat and the placement frame sliding seat.

10. The headphone clamping force testing fixture according to claim 9, characterized in that, Both the placement rack sliding seat and the overlapping component sliding seat are provided with a scale protrusion. The projection of the scale protrusion along the Z-axis on the upper surface of the base coincides with the projection of the distance scale along the Z-axis on the upper surface of the base.

11. The headphone clamping force testing fixture according to claim 5, characterized in that, The base is also provided with at least two blocking members, which are respectively located at both ends of the slide rail in the X-axis direction. The blocking members can abut against the overlapping member sliding seat and the placement frame sliding seat to prevent the overlapping member sliding seat and the placement frame sliding seat from separating from the slide rail.

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