A key stroke detection calibration device for a bluetooth headset

Abstract

The utility model discloses a kind of button stroke detection calibration devices for bluetooth headset, it is related to electronic equipment detection technical field, including body and base, the upper end surface of body is fixed with base, the middle part of base is equipped with placing groove. The rubber elastic pad layer of the placing groove on the base of the button stroke detection calibration device for bluetooth headset can increase and buffer protection with earphone friction force, prevent earphone from being damaged when being placed;Symmetrical arc clamping plate cooperates with elastic buffer pad and can better adhere to earphone to realize firm clamping, spring provides clamping force, pressure sensor real-time monitoring avoids improper clamping force, damper prevents clamping plate movement impact earphone;Two groups of displacement sensors symmetrically arranged on mounting bracket can accurately monitor key displacement change from different directions, obtain key actual moving track and displacement amount comprehensively, effectively improve the accuracy and stability of detection calibration, guarantee the reliability and high efficiency of bluetooth headset key detection calibration work.

Description

Technical Field

[0001] This utility model relates to the field of electronic device testing technology, specifically a button travel detection and calibration device for Bluetooth headsets. Background Technology

[0002] With the development of technology, Bluetooth headsets have been widely used due to their convenience. As an important operating component, the travel distance of the buttons on Bluetooth headsets directly affects the user experience. If the button travel distance is too large, it will lead to unresponsive operation; if the travel distance is too small, accidental touches may occur. Therefore, the button travel distance needs to be tested and calibrated during the production process of Bluetooth headsets.

[0003] However, existing button travel detection and calibration devices for Bluetooth headsets still have some problems in use: Existing button travel detection and calibration devices for Bluetooth headsets mostly rely on manual methods for detecting and calibrating the button travel of Bluetooth headsets. This involves manually pressing the button and using simple tools to measure the travel, and then manually calibrating based on the measurement results. This method is not only inefficient but also highly susceptible to human factors, making it difficult to guarantee detection accuracy and calibration consistency, and thus cannot meet the needs of large-scale production. Therefore, we propose a button travel detection and calibration device for Bluetooth headsets to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this invention is to provide a button travel detection and calibration device for Bluetooth headsets, in order to solve the problem that the button travel detection and calibration devices for Bluetooth headsets mentioned in the background art mostly rely on manual methods for detecting and calibrating the button travel of Bluetooth headsets. This involves manually pressing the button and using simple tools to measure the travel, and then manually calibrating based on the measurement results. This is not only inefficient, but also greatly affected by human factors, making it difficult to guarantee detection accuracy and calibration consistency, and thus failing to meet the needs of large-scale production.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a button travel detection and calibration device for Bluetooth headsets, comprising a body and a base. The base is fixed to the upper surface of the body, and a placement groove is formed in the middle of the base. Two sets of clamping plates are symmetrically installed in the middle of the base. Two sets of springs are symmetrically installed on the inner side of the base, and the other end of the springs is fixedly connected to one side of the clamping plate. A pressure sensor is installed at the connection between the spring and the clamping plate. Two sets of dampers are symmetrically installed on the inner side of the base, and the output end of the damper is fixedly connected to one side of the clamping plate. A mounting bracket is fixed inside the base, and a displacement sensor is installed above the mounting bracket. A fixing bracket is bolted to the inner top of the body. A motor is bolted to the inside of the body. A lead screw is movably connected to the output end of the motor. A slider is threaded to the outer surface of the lead screw. A bracket is fixed to the outer side of the slider, and a calibration head is installed in the middle of the bracket.

[0006] Using the above technical solution, the motor drives the lead screw to rotate, which in turn moves the slider and calibration head. The calibration head presses the Bluetooth headset button. At the same time, the clamping plate clamps the headset under the action of the spring and damper. The pressure sensor measures the clamping force, and the displacement sensor measures the movement distance of the calibration head. This obtains relevant data on the button travel. By measuring the button travel data, the button travel of the Bluetooth headset can be accurately detected and calibrated, ensuring that the button pressing feel and function meet the standard requirements.

[0007] Preferably, the outer surface of the placement groove is provided with an elastic pad, and the elastic pad is made of rubber.

[0008] Using the above technical solution, the elastic pad of rubber material has good elasticity and flexibility. When the Bluetooth headset is placed in the placement groove with the elastic pad, the pad will undergo elastic deformation due to the pressure of the headset. On the one hand, it can increase the friction between the headset and the placement groove, prevent the headset from shaking or shifting during the testing and calibration process, and ensure the accuracy of the test; on the other hand, it can play a buffering and protective role, and prevent the headset surface from being scratched by the placement groove.

[0009] Preferably, the clamping surface of the clamping plate has an arc-shaped structure, and an elastic buffer pad is adhered to the side of the clamping plate facing the placement groove.

[0010] Using the above technical solution, the clamping surface of the clamp is arc-shaped, which can better fit the curvature of the Bluetooth headset shell; when the clamp holds the headset, the elastic buffer pad will undergo elastic deformation due to the force. The arc-shaped structure and the elastic buffer pad work together to increase the contact area between the clamp and the headset, making the clamping more stable. At the same time, the elastic buffer pad can buffer the clamping force and prevent damage to the headset due to excessive clamping.

[0011] Preferably, two sets of displacement sensors are symmetrically arranged along both sides of the placement groove.

[0012] By adopting the above technical solution, displacement sensors symmetrically arranged on both sides are used to monitor the displacement changes of Bluetooth headset buttons during the pressing process from different directions simultaneously. By comparing the data collected by the sensors on both sides, the actual movement trajectory and displacement of the button can be obtained more accurately, which can improve the accuracy and reliability of button travel detection, avoid errors that may occur due to single-sided detection, and detect whether there are any abnormalities such as displacement when the button is pressed, ensuring that the detection results truly reflect the button performance.

[0013] Preferably, a limiting shaft is fixed in the middle of the fixed frame and on one side parallel to the lead screw, and the slider is slidably connected to the limiting shaft.

[0014] Using the above technical solution, when the motor drives the lead screw to rotate and move the slider, the slider is simultaneously slidably connected to a limiting shaft parallel to the lead screw. The limiting shaft restricts the slider's freedom in other directions except for moving along the lead screw axis, ensuring that the slider can only make linear reciprocating motion along the lead screw, preventing it from deflecting or wobbling during rotation, thereby improving the stability and accuracy of the calibration head movement and ensuring the accuracy of Bluetooth headset button travel detection calibration.

[0015] Preferably, a control panel is installed on the top of the machine body, and four sets of support feet are installed on the bottom of the machine body, with anti-slip texture on the bottom surface of the support feet.

[0016] By adopting the above technical solution, the control panel allows operators to easily set parameters, start and stop the device; the support feet and their anti-slip texture can stably support the device and prevent it from sliding or shifting due to vibration or external force during operation, ensuring that the testing and calibration work can be carried out normally.

[0017] Compared with the prior art, the beneficial effects of this utility model are: 1. The rubber elastic pad layer in the slot on the base increases the friction with the headphones and provides cushioning protection to prevent damage when the headphones are placed; the symmetrical arc-shaped clamping plate, together with the elastic cushioning pad, can better fit the headphones for a stable clamping, the spring provides clamping force, the pressure sensor monitors in real time to avoid improper clamping force, and the damper prevents the clamping plate from impacting the headphones; the two sets of displacement sensors symmetrically set on the mounting bracket can accurately monitor the button displacement changes from different directions, comprehensively obtain the actual movement trajectory and displacement of the buttons, effectively improve the accuracy and stability of detection and calibration, and ensure the reliability and efficiency of Bluetooth headphone button detection and calibration work; 2. The internal structure of the machine is securely connected to the motor via bolts. The motor drives the lead screw to rotate. The rotational motion is converted into linear motion of the slider along the lead screw axis by the threaded connection between the slider and the lead screw, as well as the sliding connection between the slider and the limit shaft. This ensures smooth and precise slider movement, avoiding movement deviation and wobbling. The bracket fixed on the outside of the slider moves synchronously with the slider, causing the calibration head to accurately press the Bluetooth headset button. This ensures the positioning accuracy and movement stability of the calibration head during the testing and calibration process, thereby improving the accuracy and reliability of Bluetooth headset button travel testing and calibration, and contributing to improved product quality and production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of this utility model from the front view; Figure 2 This is a schematic diagram of the internal structure of the base of this utility model; Figure 3 This is a schematic diagram of the elastic clamping plate structure of this utility model; Figure 4 This is a schematic diagram of the adjustment structure of the calibration head of this utility model.

[0019] In the diagram: 1. Body; 2. Control panel; 3. Support leg; 4. Base; 5. Placement slot; 6. Elastic pad; 7. Clamping plate; 8. Spring; 9. Pressure sensor; 10. Damper; 11. Mounting bracket; 12. Displacement sensor; 13. Fixing bracket; 14. Motor; 15. Lead screw; 16. Limiting shaft; 17. Slider; 18. Bracket; 19. Calibration head. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figures 1-4This utility model provides a technical solution: a button travel detection and calibration device for Bluetooth headsets, including a body 1 and a base 4. The base 4 is fixed to the upper surface of the body 1. A placement groove 5 is opened in the middle of the base 4. Two sets of clamping plates 7 are symmetrically installed in the middle of the base 4. Two sets of springs 8 are symmetrically installed on the inner side of the base 4, and the other end of the spring 8 is fixedly connected to one side of the clamping plate 7. A pressure sensor 9 is installed at the connection between the spring 8 and the clamping plate 7. Two sets of dampers 10 are symmetrically installed on the inner side of the base 4, and the output end of the damper 10 is fixedly connected to one side of the clamping plate 7. A mounting bracket 11 is fixed inside the base 4, and a displacement sensor 12 is installed above the mounting bracket 11. An elastic pad 6 is provided on the outer surface of the placement groove 5, and the elastic pad 6 is made of rubber. The clamping surface of the clamping plate 7 has an arc-shaped structure, and an elastic buffer pad is adhered to the side of the clamping plate 7 facing the placement groove 5. Two sets of displacement sensors 12 are symmetrically arranged along both sides of the placement groove 5.

[0022] The base 4, fixed at the upper end of the main body 1, has a placement slot 5 in the middle. The elastic rubber pad 6 on its outer surface can deform elastically when the earphone is placed in, increasing friction and cushioning the earphone. Two sets of clamping plates 7 are symmetrical in the middle of the base 4. Their arc-shaped clamping surfaces cooperate with the bonded elastic cushioning pad to better fit the earphone and hold it firmly. The inner spring 8 provides clamping force, and the pressure sensor 9 can monitor the magnitude of this force in real time. The damper 10 prevents the clamping plates 7 from moving too fast and impacting the earphone. Two sets of displacement sensors 12 are symmetrically arranged on both sides of the placement slot 5 on the mounting bracket 11 inside the base 4. They can monitor the displacement changes when the earphone button is pressed from different directions at the same time. By comparing the data, the actual movement trajectory and displacement of the button can be accurately obtained, realizing accurate detection and calibration of the Bluetooth earphone button travel.

[0023] A mounting bracket 13 is bolted to the inner top of the machine body 1. A motor 14 is bolted to the inside of the machine body 1. A lead screw 15 is movably connected to the output end of the motor 14. A slider 17 is threaded onto the outer surface of the lead screw 15. A bracket 18 is fixed to the outer side of the slider 17. A calibration head 19 is installed in the middle of the bracket 18. A limit shaft 16 is fixed to the middle of the mounting bracket 13 and parallel to the lead screw 15. The slider 17 is slidably connected to the limit shaft 16.

[0024] The motor 14 is securely connected by bolts, and its output end is movably connected to the lead screw 15. When the motor 14 starts running, it drives the lead screw 15 to rotate around its own axis. Since the slider 17 is threadedly connected to the outer surface of the lead screw 15, and the slider 17 is also slidably connected to the limiting shaft 16, which is fixed in the middle of the fixed frame 13 and parallel to the lead screw 15, the limiting shaft 16 restricts the slider 17's freedom of movement in all directions except along the axial direction of the lead screw 15, so that the slider 17 can only make linear reciprocating motion along the lead screw 15. The bracket 18 fixed on the outside of the slider 17 moves synchronously with the slider 17, thereby driving the calibration head 19 in the middle of the bracket 18 to move, thus realizing the pressing operation of the Bluetooth headset button, completing the detection and calibration of the button travel, and ensuring the stability and accuracy of the entire movement process.

[0025] A control panel 2 is installed on the top of the body 1, and four sets of support feet 3 are installed on the bottom of the body 1, with anti-slip texture on the bottom surface of the support feet 3.

[0026] The control panel 2 mounted on top of the main body 1 is connected to key components such as the motor 14, displacement sensor 12, and pressure sensor 9 inside the device via electrical signals. Operators can input commands through the control panel 2, which are processed by the circuit system and converted into corresponding electrical signals to precisely control the start, stop, speed, and direction of the motor 14, thereby adjusting the movement of the calibration head 19. At the same time, it can also receive and display data feedback from the sensors in real time, making it convenient for operators to monitor and adjust the testing and calibration process. The four sets of support feet 3 mounted at the bottom of the main body 1 have anti-slip textures on their bottom surfaces to increase the coefficient of friction with the placement surface. Based on the principle of friction, when the device is subjected to vibrations generated by the operation of the motor 14 or external forces during operation, the anti-slip textures can provide sufficient friction to prevent the device from sliding or shifting, ensuring the stable and reliable operation of the entire testing and calibration device.

[0027] Working principle: For this type of button travel detection and calibration device for Bluetooth headsets, the Bluetooth headset is placed in the placement slot 5 in the middle of the base 4. The elastic pad 6 of the outer surface of the base 4 generates elastic deformation to increase friction and buffer and protect the headset. Two sets of clamping plates 7 firmly hold the headset under the action of springs 8. Pressure sensor 9 monitors the clamping force in real time. Damper 10 prevents the clamping plates 7 from moving too fast and impacting the headset. Two sets of displacement sensors 12 simultaneously monitor the displacement changes when the headset button is pressed from different directions. The motor 14 inside the body 1 starts and drives the lead screw 15 to rotate. The slider 17, which is threaded to the lead screw 15 and slidably connected to the limit shaft 16, moves linearly back and forth along the lead screw 15, driving the bracket 18 and calibration head 19 to move, realizing the pressing operation of the Bluetooth headset button. By comparing the data of displacement sensor 12, the actual movement trajectory and displacement of the button are accurately obtained, and the button travel detection and calibration work is completed.

[0028] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0029] Although the present invention 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 embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A button travel detection and calibration device for Bluetooth headsets, comprising a body (1) and a base (4), characterized in that: A base (4) is fixed to the upper surface of the body (1). A placement groove (5) is provided in the middle of the base (4). Two sets of clamping plates (7) are symmetrically installed in the middle of the base (4). Two sets of springs (8) are symmetrically installed on the inner side of the base (4), and the other end of the spring (8) is fixedly connected to one side of the clamping plate (7). A pressure sensor (9) is installed at the connection between the spring (8) and the clamping plate (7). Two sets of dampers (10) are symmetrically installed on the inner side of the base (4), and the output end of the damper (10) is fixedly connected to one side of the clamping plate (7). The base (4) is fixed with a mounting bracket (11) inside. A displacement sensor (12) is installed above the mounting bracket (11). A fixing bracket (13) is bolted to the top of the body (1). A motor (14) is bolted to the inside of the body (1). A lead screw (15) is movably connected to the output end of the motor (14). A slider (17) is threaded to the outer surface of the lead screw (15). A bracket (18) is fixed to the outer side of the slider (17). A calibration head (19) is installed in the middle of the bracket (18).

2. The button travel detection and calibration device for Bluetooth headsets according to claim 1, characterized in that: The outer surface of the placement groove (5) is provided with an elastic pad (6), and the elastic pad (6) is made of rubber.

3. The button travel detection and calibration device for Bluetooth headsets according to claim 1, characterized in that: The clamping surface of the clamping plate (7) has an arc-shaped structure, and an elastic buffer pad is bonded to the side of the clamping plate (7) facing the placement groove (5).

4. The button travel detection and calibration device for Bluetooth headsets according to claim 1, characterized in that: Two sets of displacement sensors (12) are symmetrically arranged along both sides of the placement groove (5).

5. The button travel detection and calibration device for Bluetooth headsets according to claim 1, characterized in that: A limiting shaft (16) is fixed in the middle of the fixed frame (13) and on one side parallel to the lead screw (15), and the slider (17) is slidably connected to the limiting shaft (16).

6. The button travel detection and calibration device for Bluetooth headsets according to claim 1, characterized in that: A control panel (2) is installed on the top of the body (1), and four sets of support feet (3) are installed on the bottom of the body (1), with anti-slip texture on the bottom surface of the support feet (3).

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