An earphone clamping mechanism and detection device

Abstract

This application provides an earphone clamping mechanism and detection device, relating to the field of earphone clamping testing technology. It includes a protective cover plate, a first support plate mounted on the top of the protective cover plate, a detection sensor mounted on one side of the first support plate, and a first clamping plate connected to the side of the detection sensor away from the first support plate. A sliding groove is formed on one side of the first support plate on the protective cover plate. A driving component is disposed between the protective cover plate and the sliding groove, and a second clamping plate is connected to the driving component. A sensor protective cover is connected to the side of the second clamping plate near the first support plate, and a support plate clearance notch is formed at the bottom of the sensor protective cover. Through the sensor protective cover, this application allows the sensor protective cover to move with the second clamping plate under the drive of the driving component. In non-use states (such as during transport), the sensor protective cover can cover the detection sensor to protect it and reduce the risk of collisions.

Description

Technical Field

[0001] This utility model relates to the field of headphone clamping testing technology, and more specifically, to an headphone clamping mechanism and testing device. Background Technology

[0002] Over-ear headphones occupy an important position in the audio equipment market due to their excellent sound quality and good noise isolation. As one of the key performance indicators of over-ear headphones, clamping force has a direct impact on the user's wearing comfort and user experience.

[0003] Precise detection of the clamping force on the earphones is required during the production process. However, in actual production and usage scenarios, the accuracy and stability of the detection sensor, a core component of the detection device, directly affect the accuracy of the detection results. In non-use states, especially during transport, the detection device may be affected by adverse factors such as collisions. Existing detection devices lack effective protection measures for the detection sensor, making it susceptible to damage or performance degradation under these conditions, leading to inaccurate detection data and impacting the quality control of the earphone products. Therefore, we propose an improvement to address this issue by developing an earphone clamping mechanism and detection device. Utility Model Content

[0004] This utility model provides an earphone clamping mechanism, including a protective cover plate, a first support plate mounted on the top of the protective cover plate, a detection sensor mounted on one side of the first support plate, and a first clamping plate connected to the side of the detection sensor away from the first support plate; a sliding groove is formed on the protective cover plate located on one side of the first support plate, a driving component is provided between the protective cover plate and the sliding groove, and a second clamping plate is connected to the driving component; a sensor protective cover is connected to the side of the second clamping plate near the first support plate, and a support plate clearance notch is formed at the bottom of the sensor protective cover; the sensor protective cover can move with the second clamping plate under the drive of the driving component, and in the non-use state, the sensor protective cover can cover the detection sensor to protect the detection sensor and reduce the detection sensor from being impacted;

[0005] By designing a sensor protective cover that can move synchronously with the second clamping plate, the sensor is protected when not in use. The sensor protective cover forms a physical barrier that can directly block external objects from directly colliding with the sensor, reducing the accuracy drift or hardware damage caused by mechanical impact. On the other hand, the linkage design between the sensor protective cover and the second clamping plate eliminates the need for additional operation steps, simplifying the protection process and improving ease of operation.

[0006] As a preferred technical solution of this application, the driving component includes two bearing seats installed at the bottom of the protective cover plate. A first hand-tightening bolt is rotatably connected between the two bearing seats via a bearing. A second support plate is threadedly connected to the outer surface of the first hand-tightening bolt. The top of the second support plate passes through a sliding groove and extends to the top of the protective cover plate. A second clamping plate is installed on the second support plate. The driving method using the first hand-tightening bolt in conjunction with the bearing seats has multiple advantages. In terms of adjustment accuracy, the characteristics of threaded transmission can achieve micro-movement of the second clamping plate, which can accurately adapt to the clamping requirements of different sized headphones and avoid headphone deformation or loose clamping due to excessive adjustment. In terms of operation experience, the first hand-tightening bolt does not require additional tools and can be manually adjusted by the operator, reducing dependence on the operating environment.

[0007] The detection sensor is connected to the first clamping plate and the first support plate by bolts, and the second clamping plate is connected to the second support plate and the sensor protective cover by bolts. The bolt connection design significantly improves the maintenance convenience and expandability of the device. When the detection sensor fails or the sensor protective cover is worn, the parts can be replaced by disassembling the bolts, without having to scrap the entire device, thus reducing maintenance costs.

[0008] As a preferred technical solution of this application, a horizontal support rod is fixedly connected between the first support plate and the slide groove. The outer surface of the horizontal support rod passes through the second support plate. The horizontal support rod can provide auxiliary support and limit the second support plate to improve the stability of the second support plate when it moves. The horizontal support rod and the first hand-tightened bolt form a "double support" structure, which disperses the bending moment on the second support plate and avoids deformation of the second support plate due to stress concentration after long-term use. In terms of motion accuracy, the horizontal support rod forms a radial constraint on the second support plate to prevent it from swaying left and right or tilting up and down during movement, ensuring that the first clamping plate and the second clamping plate remain parallel and improving the stability of the earphone clamping.

[0009] A detection device using an earphone clamping mechanism includes a device protective box installed at the bottom of a protective cover. A controller is installed inside the device protective box. The wiring of the detection sensor passes through the protective cover and extends to the device protective box and is connected to the controller. The protective cover and the device protective box are connected by bolts. The design of the device protective box achieves physical isolation between the controller and the external environment, providing a stable working environment for electronic components. The bolt connection between the protective cover and the device protective box ensures connection strength and facilitates opening the device protective box for wiring maintenance.

[0010] As a preferred technical solution of this application, a first groove is installed on the front of the device protective box, and a touch screen is installed in the first groove. The touch screen is connected to the controller. The setting of the first groove can prevent the touch screen from protruding. The detection sensor is a pressure sensor. The detection data of the detection sensor is transmitted to the controller, and the controller then transmits it to the touch screen for display. The controller can be a PLC controller or a microcontroller. The detection principle, circuit connection, pressure sensor, controller and touch screen model selection are all common knowledge. This application has not improved this part, so it will not be described in detail.

[0011] As a preferred technical solution of this application, a first side groove is provided on one side of the device protective box, and an auxiliary limiting rod is fixedly installed on the inner wall of the first side groove. The auxiliary limiting rod is welded to the inner wall of the first side groove; a second side groove is provided on the other side of the device protective box.

[0012] As a preferred technical solution of this application, the top of the protective cover is provided with several installation threaded holes, and the top of the protective cover is connected to the installation threaded holes by bolts and an auxiliary mechanism.

[0013] As a preferred technical solution of this application, the auxiliary mechanism includes a third support plate, with a fifth support plate and a fourth support plate fixedly connected to both ends of the third support plate respectively. The fifth support plate has mounting through holes, and the mounting through holes, mounting threaded openings, and bolts are used to connect the fifth support plate to the top of the protective cover plate. The third support plate, the fourth support plate, and the fifth support plate are welded together. The number of mounting threaded openings is greater than the number of mounting through holes. This arrangement allows for adjustment of the position of the auxiliary mechanism on the protective cover plate.

[0014] As a preferred technical solution of this application, a second groove is provided on one side of the third support plate. A second hand-tightening bolt is rotatably connected between the second groove and the third support plate through a bearing. A sixth support plate is threadedly connected to the outer surface of the second hand-tightening bolt. Rotating the second hand-tightening bolt can drive the sixth support plate to rise and fall. Through the auxiliary mechanism, the headphones can be assisted in supporting them. The rise and fall of the sixth support plate driven by the second hand-tightening bolt realizes the adjustment of the auxiliary support height. The operator can adjust the support height according to the curvature and thickness of the headband of the headphones, so that the headphones maintain a natural stress state during the testing process and reduce the distortion of test data caused by improper support.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] In the scheme of this application:

[0017] This application features a sensor protective cover that moves with the second clamping plate under the drive of the driving component. In non-use states (such as during transport), the sensor protective cover can cover the detection sensor to protect it and reduce the risk of collisions. Attached Figure Description

[0018] Figure 1 A schematic diagram of the headphone clamping mechanism and detection device provided in this application;

[0019] Figure 2 Another structural schematic diagram of the earphone clamping mechanism and detection device provided in this application;

[0020] Figure 3 A structural schematic diagram of the second support plate provided in this application;

[0021] Figure 4 A bottom view of the protective cover plate provided in this application;

[0022] Figure 5 A structural diagram of the auxiliary mechanism provided in this application;

[0023] Figure 6 This is a schematic diagram of the structure of the sensor protective cover provided in this application for protecting the detection sensor.

[0024] The image shows:

[0025] 1. Protective cover plate; 101. Slide groove; 103. First support plate; 104. Detection sensor; 105. First clamping plate; 106. First hand-tightening bolt; 107. Second support plate; 108. Second clamping plate; 109. Horizontal support rod; 110. Sensor protective cover; 111. Support plate clearance notch; 112. Bearing seat; 2. Mounting threaded port; 3. Device protective box; 301. Touch screen; 302. First side groove; 303. Auxiliary limit rod; 304. Second side groove; 4. Auxiliary mechanism; 401. Third support plate; 402. Fourth support plate; 403. Fifth support plate; 404. Mounting through hole; 405. Second groove; 406. Second hand-tightening bolt; 407. Sixth support plate. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0027] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] Example 1, please refer to Figures 1-3 An earphone clamping mechanism includes a protective cover plate 1, a first support plate 103 mounted on the top of the protective cover plate 1, a detection sensor 104 mounted on one side of the first support plate 103, and a first clamping plate 105 connected to the side of the detection sensor 104 away from the first support plate 103; a sliding groove 101 is formed on the protective cover plate 1 on one side of the first support plate 103, a driving member is provided between the protective cover plate 1 and the sliding groove 101, and the driving member is connected to a second clamping plate 108; a sensor protective cover 110 is connected to the side of the second clamping plate 108 near the first support plate 103, and a support plate clearance notch 111 is formed at the bottom of the sensor protective cover 110; the sensor protective cover 110 can move with the second clamping plate 108 under the drive of the driving member; in the non-use state, the sensor protective cover 110 can cover the detection sensor 104 to protect the detection sensor 104 and reduce the impact of the detection sensor 104.

[0030] By designing a sensor protective cover 110 that can move synchronously with the second clamping plate 108, the detection sensor 104 is protected when not in use. The sensor protective cover 110 forms a physical barrier that can directly block external objects from directly colliding with the detection sensor 104, reducing the accuracy drift or hardware damage of the detection sensor 104 due to mechanical impact. On the other hand, the linkage design between the sensor protective cover 110 and the second clamping plate 108 requires no additional operation steps, simplifying the protection process and improving the ease of operation.

[0031] Furthermore, the driving component includes two bearing seats 112 mounted on the bottom of the protective cover plate 1. A first hand-tightening bolt 106 is rotatably connected between the two bearing seats 112 via a bearing. A second support plate 107 is threadedly connected to the outer surface of the first hand-tightening bolt 106. The top of the second support plate 107 passes through the slide groove 101 and extends to the top of the protective cover plate 1. A second clamping plate 108 is mounted on the second support plate 107. The driving method using the first hand-tightening bolt 106 in conjunction with the bearing seats 112 has multiple advantages. In terms of adjustment accuracy, the characteristics of threaded transmission allow for minute movements of the second clamping plate 108, which can precisely adapt to the clamping requirements of headphones of different sizes, avoiding headphone deformation or loose clamping due to excessive adjustment. In terms of user experience, the first hand-tightening bolt 106 requires no additional tools, and operators can adjust it manually, reducing dependence on the operating environment.

[0032] The detection sensor 104 is connected to the first clamping plate 105 and the first support plate 103 by bolts, and the second clamping plate 108 is connected to the second support plate 107 and the sensor protective cover 110 by bolts. The bolt connection design significantly improves the maintenance convenience and expandability of the device. When the detection sensor 104 fails or the sensor protective cover 110 is worn, the parts can be replaced by disassembling the bolts, without having to scrap the entire device, thus reducing maintenance costs.

[0033] Furthermore, a horizontal support rod 109 is fixedly connected between the first support plate 103 and the slide groove 101. The outer surface of the horizontal support rod 109 passes through the second support plate 107. The horizontal support rod 109 can provide auxiliary support and limit the second support plate 107 to improve the stability of the second support plate 107 when it moves. The horizontal support rod 109 and the first hand-tightening bolt 106 form a "double support" structure, which disperses the bending moment on the second support plate 107 and avoids the deformation of the second support plate 107 due to stress concentration after long-term use. In terms of motion accuracy, the horizontal support rod 109 forms a radial constraint on the second support plate 107 to prevent it from swaying left and right or tilting up and down during movement, ensuring that the first clamping plate 105 and the second clamping plate 108 remain parallel, thus improving the stability of the earphone clamping.

[0034] Example 2, please refer to Figures 1-5A detection device using an earphone clamping mechanism includes a protective cover plate 1, a first support plate 103 mounted on the top of the protective cover plate 1, a detection sensor 104 mounted on one side of the first support plate 103, and a first clamping plate 105 connected to the side of the detection sensor 104 away from the first support plate 103; a sliding groove 101 is formed on the protective cover plate 1 located on one side of the first support plate 103, a driving member is provided between the protective cover plate 1 and the sliding groove 101, and the driving member is connected to a second clamping plate 108, the second clamping plate 108 being close to the first support plate 103. A sensor protective cover 110 is connected to one side of the support plate 103. The bottom of the sensor protective cover 110 is provided with a support plate clearance notch 111. The driving component includes two bearing seats 112 installed at the bottom of the protective cover 1. A first hand-tightening bolt 106 is rotatably connected between the two bearing seats 112 through a bearing. A second support plate 107 is threadedly connected to the outer surface of the first hand-tightening bolt 106. The top of the second support plate 107 passes through the slide groove 101 and extends to the top of the protective cover 1. A second clamping plate 108 is installed on the second support plate 107.

[0035] The detection sensor 104 is connected to the first clamping plate 105 and the first support plate 103 by bolts, and the second clamping plate 108 is connected to the second support plate 107 and the sensor protective cover 110 by bolts. The bolt connection design significantly improves the maintenance convenience and expandability of the device. When the detection sensor 104 fails or the sensor protective cover 110 is worn, the parts can be replaced by disassembling the bolts, without having to scrap the entire device.

[0036] Furthermore, a horizontal support rod 109 is fixedly connected between the first support plate 103 and the slide groove 101. The outer surface of the horizontal support rod 109 passes through the second support plate 107. The horizontal support rod 109 can provide auxiliary support and limit the movement of the second support plate 107 to improve the stability of the second support plate 107 when it moves. The horizontal support rod 109 and the first hand-tightening bolt 106 form a "double support" structure, which disperses the bending moment on the second support plate 107.

[0037] It also includes a device protection box 3 installed at the bottom of the protective cover 1. The device protection box 3 is equipped with a controller. The circuit of the detection sensor 104 passes through the protective cover 1 and extends to the device protection box 3 and is connected to the controller. The protective cover 1 and the device protection box 3 are connected by bolts. The design of the device protection box 3 realizes the physical isolation of the controller from the external environment and provides a stable working environment for electronic components. The bolt connection between the protective cover 1 and the device protection box 3 not only ensures the connection strength, but also makes it easy to open the device protection box 3 for circuit maintenance.

[0038] Furthermore, a first groove is installed on the front of the device protective box 3, and a touch screen 301 is installed in the first groove. The touch screen 301 is connected to the controller. The setting of the first groove can prevent the touch screen 301 from protruding. The detection sensor 104 is a pressure sensor. The detection data of the detection sensor 104 is transmitted to the controller, and the controller then transmits it to the touch screen 301 for display. The controller can be a PLC controller or a microcontroller. The detection principle, circuit connection, pressure sensor, controller and touch screen 301 model selection are all common knowledge. This application has not made any improvements to this part, so it will not be described in detail.

[0039] Furthermore, a first side groove 302 is provided on one side of the device protective box 3, and an auxiliary limiting rod 303 is fixedly installed on the inner wall of the first side groove 302. The auxiliary limiting rod 303 is welded to the inner wall of the first side groove 302; a second side groove 304 is provided on the other side of the device protective box 3.

[0040] Furthermore, the top of the protective cover plate 1 is provided with several mounting threaded holes 2, and the top of the protective cover plate 1 is connected to the mounting threaded holes 2 by bolts to an auxiliary mechanism 4.

[0041] Furthermore, the auxiliary mechanism 4 includes a third support plate 401, with a fifth support plate 403 and a fourth support plate 402 fixedly connected to both ends of the third support plate 401. The fifth support plate 403 has a mounting through hole 404, which, together with the mounting threaded port 2 and bolts, connects the fifth support plate 403 to the top of the protective cover plate 1. The third support plate 401, the fourth support plate 402, and the fifth support plate 403 are welded together. The number of mounting threaded ports 2 is greater than the number of mounting through holes 404. This arrangement allows for adjustment of the position of the auxiliary mechanism 4 on the protective cover plate 1.

[0042] Furthermore, a second groove 405 is provided on one side of the third support plate 401. A second hand-tightening bolt 406 is rotatably connected between the second groove 405 and the third support plate 401 via a bearing. A sixth support plate 407 is threadedly connected to the outer surface of the second hand-tightening bolt 406. Rotating the second hand-tightening bolt 406 can drive the sixth support plate 407 to rise and fall. The auxiliary mechanism 4 can provide auxiliary support for the headphones. The rise and fall of the sixth support plate 407 driven by the second hand-tightening bolt 406 realizes the adjustment of the auxiliary support height. The operator can adjust the support height according to the curvature and thickness of the headband of the headphones, so that the headphones maintain a natural stress state during the testing process and reduce the distortion of test data caused by improper support.

[0043] When using, refer to Figure 1Turn the second hand-tightening bolt 406 to move the sixth support plate 407 up and down. Adjust the height of the sixth support plate 407 according to the actual situation. Then turn the first hand-tightening bolt 106. The first hand-tightening bolt 106 moves the second support plate 107 to adjust the distance between the first clamping plate 105 and the second clamping plate 108. Then clamp the headphones between the opposite sides of the first clamping plate 105 and the second clamping plate 108 and provide auxiliary support from the sixth support plate 407. The detection data of the detection sensor 104 is transmitted to the controller, and the controller then transmits it to the touch screen 301 for display.

[0044] During the transfer, the form of this application will be changed from Figure 1 Switch to Figure 6 Specifically, unscrew the bolts fixing the auxiliary mechanism 4, then turn the second hand-tightening bolt 406 to make the sixth support plate 407 contact the fourth support plate 402. Align the mounting through hole 404 with the auxiliary limiting rod 303 and insert it, with the sixth support plate 407 aligned with the second side groove 304. Rotate the second hand-tightening bolt 406 to move the sixth support plate 407 and insert it into the second side groove 304, i.e. Figure 6 As shown, at this time, the auxiliary mechanism 4 covers the touch screen 301 to protect it. Then, rotating the first hand-tightening bolt 106 causes the second clamping plate 108 to move the sensor protective cover 110 towards the first clamping plate 105, i.e. Figure 6 As shown, at this time, the detection sensor 104 is protected between the first clamping plate 105, the sensor protective cover 110, and the second clamping plate 108;

[0045] When reusing, rotate the first hand-tightening bolt 106 to move the second clamping plate 108 away from the first clamping plate 105, rotate the second hand-tightening bolt 406 to make the sixth support plate 407 contact the fourth support plate 402, then push the third support plate 401 to separate the mounting through hole 404 from the auxiliary limiting rod 303 to remove the auxiliary mechanism 4. Then, fix the fifth support plate 403 to the top of the protective cover plate 1 by passing a bolt through the mounting through hole 404 and engaging it with the mounting thread 2. Figure 1 As shown.

[0046] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. An earphone clamping mechanism, characterized in that, The device includes a protective cover (1), on the top of which a first support plate (103) is installed. A detection sensor (104) is installed on one side of the first support plate (103), and a first clamping plate (105) is connected to the side of the detection sensor (104) away from the first support plate (103). A sliding groove (101) is provided on the protective cover (1) on one side of the first support plate (103). A driving member is provided between the protective cover (1) and the sliding groove (101), and the driving member is connected to a second clamping plate (108). A sensor protective cover (110) is connected to the side of the second clamping plate (108) near the first support plate (103). A support plate clearance notch (111) is provided at the bottom of the sensor protective cover (110).

2. The earphone clamping mechanism according to claim 1, characterized in that, The drive unit includes two bearing seats (112) installed at the bottom of the protective cover plate (1). A first hand-tightening bolt (106) is rotatably connected between the two bearing seats (112) via a bearing. A second support plate (107) is threadedly connected to the outer surface of the first hand-tightening bolt (106). The top end of the second support plate (107) passes through the slide groove (101) and extends to the top of the protective cover plate (1). A second clamping plate (108) is installed on the second support plate (107).

3. The earphone clamping mechanism according to claim 2, characterized in that, A horizontal support rod (109) is fixedly connected between the first support plate (103) and the slide groove (101), and the outer surface of the horizontal support rod (109) passes through the second support plate (107).

4. A detection device, using the earphone clamping mechanism as described in claim 3, characterized in that, The device includes a protective box (3) installed at the bottom of the protective cover (1), and a controller is provided inside the protective box (3). The wiring of the detection sensor (104) passes through the protective cover (1) and extends to the protective box (3) and is connected to the controller.

5. The detection device according to claim 4, characterized in that, The device protective box (3) has a first groove installed on the front, and a touch screen (301) is installed in the first groove and connected to the controller.

6. The detection device according to claim 4, characterized in that, The device protective box (3) has a first side groove (302) on one side, and an auxiliary limiting rod (303) is fixedly installed on the inner wall of the first side groove (302).

7. The detection device according to claim 4, characterized in that, A second side groove (304) is provided on the other side of the device protective box (3).

8. The detection device according to claim 4, characterized in that, The top of the protective cover (1) is provided with several mounting threaded ports (2), and the top of the protective cover (1) is connected to the mounting threaded ports (2) by bolts to an auxiliary mechanism (4).

9. The detection device according to claim 8, characterized in that, The auxiliary mechanism (4) includes a third support plate (401), and a fifth support plate (403) and a fourth support plate (402) are fixedly connected to both ends of the third support plate (401). The fifth support plate (403) has an installation through hole (404), and the installation through hole (404), the installation threaded port (2), and the bolts are used to connect the fifth support plate (403) to the top of the protective cover plate (1).

10. The detection device according to claim 9, characterized in that, The third support plate (401) has a second groove (405) on one side. The second groove (405) and the third support plate (401) are rotatably connected by a second hand-tightening bolt (406) through a bearing. The outer surface of the second hand-tightening bolt (406) is threadedly connected to a sixth support plate (407).

Images