Bluetooth earphone charging box rotating shaft structure

Abstract

The utility model relates to the field of Bluetooth headset charging box pivot structure of pivot structure, including the lower cover of upper cover and bottom setting, the upper cover connection place installs the axle rod, and the both sides of axle rod have first gear, and first gear outside passes through connecting shaft sleeve torsional spring. The lower cover connection place opens the installation groove, and torsional spring one end links first gear surface, and the other end links the inner wall of installation groove. The inner wall of installation groove corresponds the installation cylinder of connecting axle place, and connecting axle is placed in the installation cylinder. The second gear is installed in the corresponding position of installation groove upper surface and first gear, and first gear is engaged with second gear. The structure passes through gear engagement, realizes smooth opening and closing when the upper cover rotates, and torsional spring stores and releases the elastic potential energy, provides the resilience, makes the upper cover keep stable, avoids sudden closing or slackening, the installation cylinder fixed connecting axle, strengthens the overall stability, reduces the wobble of rotation, and further promotes the convenience and use experience that the user opens and closes the charging box.

Description

Technical Field

[0001] This utility model relates to the field of hinge structures, specifically to a hinge structure for a Bluetooth headset charging case. Background Technology

[0002] Bluetooth earphone charging cases, as an important accessory for Bluetooth earphones, are mainly used to store earphones and provide charging functionality. The hinge structure is the core component connecting the upper and lower covers, directly affecting the smoothness and stability of the charging case's opening and closing, as well as the user experience. The design of the hinge structure must balance the smoothness of the opening and closing action, the control of the rebound force, and the overall structural stability to meet the needs of users who frequently open and close the case.

[0003] Traditional hinge structures lack gear transmission mechanisms and rely solely on simple shaft connections, resulting in uneven opening and closing of the top and bottom covers, which can easily lead to jamming or wobbling. The design of the torsion spring may not fully consider the storage and release of elastic potential energy, resulting in insufficient or uneven rebound force during the rotation of the top cover, which may cause sudden closing or loosening, affecting ease of use. In addition, the fixing method of the connecting shaft may be relatively simple, which can easily cause wobbling during rotation, reducing the overall stability of the hinge structure and further affecting the user's experience of opening and closing the charging case. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned defects and provide a hinge structure for a Bluetooth headset charging case, which reduces shaking during rotation, thereby improving the convenience and user experience of opening and closing the charging case. It solves the technical problem that the existing technology reduces the overall stability of the hinge structure and further affects the user's experience of opening and closing the charging case.

[0005] The objective of this utility model is achieved through the following means:

[0006] A Bluetooth earphone charging case hinge structure includes an upper cover, a lower cover at the bottom of the upper cover, a shaft at the connection of the upper cover, first gears on both sides of the shaft, connecting shafts on the outer sides of the first gears, and torsion springs sleeved on the surfaces of the connecting shafts. A mounting groove is provided at the connection of the lower cover, one end of each torsion spring is connected to the surface of the first gear, and the other end of each torsion spring is connected to the inner wall of the mounting groove. Mounting cylinders are installed at positions corresponding to the connecting shafts on the inner wall of the mounting groove, and the connecting shafts are installed inside the mounting cylinders. Second gears are installed at positions corresponding to the first gears on the upper surface of the mounting groove, and the surfaces of the first gears mesh with the surfaces of the second gears.

[0007] Furthermore, a baffle is installed at the bottom of the upper cover. The position and size of the baffle are adapted to the mounting groove. The baffle can effectively block dust, reduce the probability of impurities entering the mounting groove, and ensure the long-term stable operation of the rotating shaft structure.

[0008] Furthermore, a support base is installed in the inner cavity of the mounting slot, and a support groove is formed on the upper surface of the support base. Support rods are evenly distributed inside the support groove. During the use of the charging box, the frequent opening and closing of the top cover will generate a large force on the rotating structure. The support rods are evenly distributed in the support groove, which can disperse these forces and avoid excessive local stress that may cause structural deformation or damage. Moreover, the uniform support distribution can ensure that the rotating structure is subjected to balanced forces in all directions, making the opening and closing of the top cover more stable and improving the structural stability and reliability of the entire charging box.

[0009] Furthermore, each of the support rods is equipped with a connecting rod at its connecting end, and a connecting cylinder is installed on the inner wall of the support groove at a position corresponding to the connecting rod. The connecting rods are all installed inside the connecting cylinders. This mating design between the connecting rods and the connecting cylinders enhances the stability of the connection between the support rod and the support base. This connection method not only withstands significant tensile and compressive forces but also allows for slight movement of the support rod within the connecting cylinder to accommodate minor deformations during the charging box's use, preventing stress concentration and damage caused by a rigid structural connection. Simultaneously, this detachable connection method facilitates replacement of the support rod when it is damaged, reducing maintenance costs and time.

[0010] Furthermore, mounting blocks are installed in the inner cavity of the mounting groove at positions corresponding to the second gear, and mounting rods are installed on the connecting side of the second gear. The mounting rods are inserted into the surface of the mounting blocks. The design of the mounting blocks and rods provides a stable mounting base for the second gear. By inserting the mounting rods into the mounting blocks, the second gear is ensured to be fixed in position within the mounting groove, preventing displacement or loosening during use and guaranteeing accurate meshing between the second and first gears. Accurate meshing is crucial for the normal operation of the shaft structure, ensuring smooth and stable opening and closing of the top cover and avoiding problems such as jamming or abnormal noise. In addition, this installation method facilitates the installation and disassembly of the second gear, making maintenance and replacement convenient.

[0011] Furthermore, slots are formed on both sides of the upper surface of the mounting groove, and the lower part of the second gear is located inside the slots. The slot design provides reasonable installation space for the second gear, allowing it to accurately mesh with the first gear. It also limits the second gear, preventing horizontal displacement and ensuring stable gear meshing. Moreover, the slots protect the second gear from damage caused by external objects. This design also makes the entire shaft structure more compact, saving internal space in the charging case and facilitating the miniaturization and weight reduction of the charging case.

[0012] The beneficial effects of this invention are as follows: the meshing of the first gear and the second gear enables a smooth opening and closing action when the upper cover rotates relative to the lower cover through gear transmission. The torsion spring can store and release elastic potential energy during the rotation of the upper cover, providing appropriate rebound force to keep the upper cover stable and prevent sudden closing or loosening. At the same time, the fixing effect of the mounting cylinder on the inner wall of the mounting groove on the connecting shaft enhances the overall stability of the rotating shaft structure and reduces shaking during rotation, thereby improving the convenience and user experience of opening and closing the charging box. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the top cover of this utility model;

[0015] Figure 3 This is a schematic diagram of the connection structure between the shaft and the support base of this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the shaft of this utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the lower cover of this utility model;

[0018] Figure 6 This is a schematic diagram of the mounting groove of this utility model;

[0019] Figure 7 This is a schematic diagram of the structure of the support base of this utility model;

[0020] Figure 8 This is a schematic diagram of the structure of the support rod of this utility model;

[0021] Figure 9 This is a schematic diagram of the structure of the second gear of this utility model;

[0022] In the diagram, 1. Upper cover; 2. Lower cover; 3. Shaft; 4. First gear; 5. Connecting shaft; 6. Torsion spring; 7. Mounting groove; 8. Mounting cylinder; 9. Second gear; 10. Baffle; 11. Support base; 12. Support groove; 13. Support rod; 14. Connecting rod; 15. Connecting cylinder; 16. Mounting block; 17. Mounting rod; 18. Slot. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] In this embodiment, refer to Figures 1-9The specific implementation of the Bluetooth earphone charging case hinge structure includes an upper cover 1, a lower cover 2 at the bottom of the upper cover 1, a shaft 3 installed at the connection of the upper cover 1, a first gear 4 installed on both sides of the surface of the shaft 3, a connecting shaft 5 installed on the outer side of the first gear 4, a torsion spring 6 sleeved on the surface of the connecting shaft 5, an installation groove 7 opened at the connection of the lower cover 2, one end of the torsion spring 6 connected to the surface of the first gear 4, and the other end of the torsion spring 6 connected to the inner wall of the installation groove 7, an installation cylinder 8 installed at the corresponding position of the inner wall of the installation groove 7 and the connecting shaft 5, the connecting shaft 5 installed inside the installation cylinder 8, and a second gear 9 installed at the corresponding position of the upper surface of the installation groove 7 and the first gear 4 meshing with the surface of the second gear 9.

[0025] The first gear 4 on both sides of the shaft 3 meshes with the second gear 9 on the inner wall of the mounting groove 7, so that when the upper cover 1 rotates relative to the lower cover 2, the opening and closing action is achieved through gear transmission. The torsion spring 6 on the connecting shaft 5 is connected to the first gear 4 and the inner wall of the mounting groove 7 at both ends, which can store and release elastic potential energy during the rotation of the upper cover 1, providing appropriate rebound force to keep the upper cover 1 stable and avoid sudden closing or loosening. At the same time, the fixing effect of the mounting cylinder 8 on the inner wall of the mounting groove 7 on the connecting shaft 5 enhances the overall stability of the rotating shaft structure, reduces shaking during rotation, and thus improves the convenience and user experience of opening and closing the charging box.

[0026] A baffle 10 is installed at the bottom of the top cover 1. The position and size of the baffle 10 are matched with the mounting groove 7. The baffle 10 can effectively block dust, reduce the probability of impurities entering the mounting groove 7, and ensure the long-term stable operation of the rotating shaft structure.

[0027] The inner cavity of the mounting slot 7 is equipped with a support base 11. The upper surface of the support base 11 is provided with a support groove 12. Support rods 13 are evenly distributed inside the support groove 12. During the use of the charging box, the frequent opening and closing of the top cover 1 will generate a large force on the rotating structure. The support rods 13 are evenly distributed in the support groove 12, which can disperse these forces and avoid excessive local stress that may cause structural deformation or damage. Moreover, the even distribution of support can ensure that the rotating structure is subjected to balanced forces in all directions, making the opening and closing of the top cover 1 more stable and improving the structural stability and reliability of the entire charging box.

[0028] Each end of the support rod 13 is equipped with a connecting rod 14, and a connecting cylinder 15 is installed on the inner wall of the support groove 12 at a position corresponding to the connecting rod 14. The connecting rod 14 is installed inside the connecting cylinder 15. The mating design of the connecting rod 14 and the connecting cylinder 15 enhances the stability of the connection between the support rod 13 and the support base 11. This connection method can not only withstand greater tensile and compressive forces, but also allows the support rod 13 to move slightly within the connecting cylinder 15 to accommodate minor deformations during use of the charging box, avoiding stress concentration and damage caused by a rigid structural connection. Furthermore, this detachable connection method facilitates replacement of the support rod 13 when it is damaged, reducing maintenance costs and time.

[0029] Mounting blocks 16 are installed in the inner cavity of the mounting slot 7 at positions corresponding to the second gear 9. Mounting rods 17 are installed on the connecting side of the second gear 9, and the mounting rods 17 are inserted into the surface of the mounting blocks 16. The design of the mounting blocks 16 and mounting rods 17 provides a stable mounting base for the second gear 9. By inserting the mounting rods 17 into the mounting blocks 16, the position of the second gear 9 in the mounting slot 7 is fixed, preventing displacement or loosening during use, and ensuring accurate meshing between the second gear 9 and the first gear 4. Accurate meshing is crucial for the normal operation of the shaft structure, ensuring smooth and stable opening and closing of the upper cover 1, avoiding problems such as jamming or abnormal noise. In addition, this installation method also facilitates the installation and disassembly of the second gear 9, making maintenance and replacement convenient.

[0030] The upper surface of the mounting slot 7 has slots 18 on both sides. The lower part of the second gear 9 is located inside the slots 18. The design of the slots 18 provides reasonable installation space for the second gear 9, allowing it to accurately mesh with the first gear 4. Simultaneously, the slots 18 limit the movement of the second gear 9, preventing horizontal displacement and ensuring stable gear meshing. Furthermore, the slots 18 protect the second gear 9 from damage caused by external objects. This design also makes the entire rotating shaft structure more compact, saving internal space in the charging case and facilitating the miniaturization and weight reduction of the charging case.

[0031] In the hinge structure of the Bluetooth earphone charging case, the first gear 4 on both sides of the shaft 3 meshes with the second gear 9 on the inner wall of the mounting groove 7, realizing the smooth opening and closing of the upper cover 1 relative to the lower cover 2 when rotating; the torsion spring 6 on the connecting shaft 5 is connected to the first gear 4 and the inner wall of the mounting groove 7 at both ends, storing and releasing elastic potential energy during the rotation of the upper cover 1 to provide a rebound force, making the upper cover 1 stable; the mounting cylinder 8 on the inner wall of the mounting groove 7 fixes the connecting shaft 5 to enhance the overall stability; the baffle 10 at the bottom of the upper cover 1 prevents dust from entering the mounting groove 7; the support groove 12 on the inner cavity support seat 11 of the mounting groove 7 is evenly distributed within the support groove 12. The evenly distributed support rods 13 disperse the force generated by the frequent opening and closing of the top cover 1. The connecting rods 14 at their connecting ends are installed in the connecting cylinders 15 inside the inner wall of the support groove 12 to enhance the connection stability. The mounting block 16 in the inner cavity of the mounting groove 7, which corresponds to the second gear 9, and the mounting rod 17 on the connecting side of the second gear 9, ensure that the position of the second gear 9 is fixed. The slots 18 on both sides of the upper surface of the mounting groove 7 provide installation space, limit and protect the second gear 9, making the entire rotating shaft structure compact and improving the convenience of opening and closing the charging box, the user experience, and the structural stability and reliability of the charging box.

[0032] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A hinge structure for a Bluetooth earphone charging case, comprising an upper cover, a lower cover at the bottom of the upper cover, and a shaft installed at the connection point of the upper cover, characterized in that: First gears are mounted on both sides of the shaft surface. Connecting shafts are mounted on the outer sides of the first gears. Torsion springs are sleeved on the surfaces of the connecting shafts. Mounting grooves are provided at the connection points of the lower cover. One end of each torsion spring is connected to the surface of the first gear, and the other end of each torsion spring is connected to the inner wall of the mounting groove. Mounting cylinders are installed at the corresponding positions of the inner wall of the mounting groove and the connecting shafts. The connecting shafts are installed inside the mounting cylinders. Second gears are mounted at the corresponding positions of the first gears on the upper surface of the mounting groove. The surfaces of the first gears mesh with the surfaces of the second gears.

2. The hinge structure of the Bluetooth earphone charging case according to claim 1, characterized in that: A baffle is installed at the bottom of the top cover, and the position and size of the baffle are adapted to the mounting groove.

3. The hinge structure of the Bluetooth earphone charging case according to claim 1, characterized in that: The mounting groove has a support base installed inside, and the upper surface of the support base has a support groove, with support rods evenly distributed inside the support groove.

4. The hinge structure of the Bluetooth earphone charging case according to claim 3, characterized in that: Each of the support rods is equipped with a connecting rod at its connecting end, and a connecting cylinder is installed on the inner wall of the support groove at a position corresponding to the connecting rod. The connecting rod is installed inside the connecting cylinder.

5. The hinge structure of the Bluetooth earphone charging case according to claim 1, characterized in that: Mounting blocks are installed in the inner cavity of the mounting groove at positions corresponding to the second gear, and mounting rods are installed on the connecting side of the second gear, with the mounting rods inserted into the surface of the mounting blocks.

6. The hinge structure of the Bluetooth earphone charging case according to claim 1, characterized in that: The upper surface of the mounting groove has slots on both sides, and the lower part of the second gear is located inside the slots.

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