Battery cover buckling structure

Abstract

The utility model provides a battery cover buckling structure, which is used for connecting a battery cover and a lock shell, the battery cover buckling structure comprises a lock catch assembly, the lock shell is provided with a placing cavity for accommodating the lock catch assembly, and the lock catch assembly comprises an ejection component and a key component; the ejection part and the key part are respectively and movably arranged, a limiting part is arranged on the key part, and a mounting part is arranged on the battery cover; wherein the battery cover has a locking state in matched connection with the lock shell and a taking-out state separated from the lock shell; when the battery cover is in a locking state, the limiting piece on the mounting component is in matched connection with the mounting piece on the battery cover, and at least part of the ejection component is in contact with the battery cover; and when the battery cover is in the taken-out state, the ejection part ejects the battery cover out. According to the utility model, the problems in the prior art that the difficulty of opening the battery cover is increased and the user experience is reduced because the battery cover is buckled and taken out for a long time in a slipknot manner and the buckling position is easy to deform are solved.

Description

Technical Field

[0001] This utility model relates to the field of smart door lock technology, and more specifically, to a battery cover snap-fit ​​structure. Background Technology

[0002] Currently, with the rapid development of the smart lock industry, user experience has become a key consideration in product design. The increasing functionality of smart locks has led to a significant increase in power consumption, prompting an upgrade from traditional dry-cell batteries to lithium batteries, which offer longer battery life but are heavier and larger. This shift presents new challenges to the installation and removal of the battery cover, requiring the design of a stable yet easy-to-operate latching structure.

[0003] However, existing battery cover fastening methods, whether relying on a snap-fit ​​design or a screw-fixed method, have significant shortcomings. While snap-fit ​​designs are simple to operate, repeated use over time can lead to wear or deformation of the snap mechanism. This is especially problematic when bearing the additional weight of the lithium battery, reducing its stability within the lock body and posing a risk of battery loosening or even power loss during severe vibrations or door slams. Screw-fixed methods, while ensuring battery cover stability, require specialized tools for disassembly, increasing complexity and time costs, significantly impacting user experience, and contradicting the convenience sought by modern smart devices. Utility Model Content

[0004] The main objective of this invention is to provide a solution to the problem that in the prior art, the use of a snap-on mechanism for battery covers can easily cause deformation of the snap, leading to increased difficulty in opening the battery cover and reduced user experience.

[0005] To achieve the above objectives, according to one aspect of the present invention, a battery cover fastening structure is provided for connecting a battery cover and a lock housing. The battery cover fastening structure includes a locking assembly. The lock housing has a cavity for accommodating the locking assembly. The locking assembly includes an ejector component and a button component, which are movably disposed respectively. The button component is provided with a limiting member, and the battery cover is provided with a mounting member. The battery cover has a locked state that is engaged with the lock housing and a removed state that is separated from the lock housing. When the battery cover is in the locked state, the limiting member on the button component is engaged with the mounting member on the battery cover, and at least a portion of the ejector component contacts the battery cover. When the battery cover is in the removed state, the ejector component ejects the battery cover.

[0006] Furthermore, the latch assembly also includes: a button bracket, with the button component movably connected to the button bracket; and a mounting bracket, with the ejector component movably mounted on the mounting bracket and in contact with the battery cover. The button bracket and the mounting bracket are interconnected, and the button bracket is connected to the placement cavity of the lock housing.

[0007] Furthermore, the limiting component includes two limiting protrusions, and the mounting component includes two mounting plates, each with a mounting hole, so that when the battery cover is in the locked state, the two limiting protrusions are respectively inserted into the two mounting holes.

[0008] Furthermore, the button component is provided with a button protrusion, and the lock shell is provided with a through hole communicating with the placement cavity, and the button protrusion is movably inserted into the through hole.

[0009] Furthermore, the button bracket is provided with two first connecting slots, and the locking assembly also includes two first elastic members, one end of each of the two first elastic members being connected to the two first connecting slots respectively, and the other end of each of the two first elastic members being connected to the button bracket respectively.

[0010] Furthermore, the mounting bracket is provided with a guide hole, and the ejector component is movably disposed in the guide hole along the extension direction of the guide hole. The guide hole is provided with a limiting groove on its inner wall along its circumferential direction, and the ejector component is provided with a mounting protrusion on its outer circumferential wall along its circumferential direction. The mounting protrusion is limited and connected to the limiting groove.

[0011] Furthermore, the button bracket is provided with a second connecting groove, and the locking assembly also includes a second elastic member, one end of which is connected to the end of the ejector component away from the battery cover, and the other end of which is connected to the second connecting groove.

[0012] Furthermore, the button bracket is provided with two first connection holes, and the mounting bracket is provided with two second connection holes that correspond one-to-one with the two first connection holes, so that the two first connecting parts are respectively inserted into the first connection holes and the second connection holes to connect the button bracket and the mounting bracket.

[0013] Furthermore, the mounting bracket is provided with two third connection holes, and the placement cavity of the lock case is provided with two fourth connection holes that correspond one-to-one with the two third connection holes, so that two second connection components are respectively inserted into the third connection holes and the fourth connection holes, so that the mounting bracket is connected to the placement cavity.

[0014] Furthermore, a fixing member is provided on one end of the battery cover opposite to the mounting member. The fixing member includes two fixing plates, and two fixing holes are respectively provided in the placement cavity of the lock case. The two fixing plates are respectively inserted into the two fixing holes.

[0015] This invention provides a battery cover fastening structure for connecting a battery cover and a lock housing. The battery cover fastening structure includes a latching assembly. The lock housing has a cavity for accommodating the latching assembly. The latching assembly includes an ejector component and a button component. The ejector component and the button component are movably disposed. The button component has a limiting member, and the battery cover has a mounting member. The battery cover has a locked state that engages with the lock housing and a removable state that is separated from the lock housing. When the battery cover is in the locked state, the limiting member on the button component engages with the mounting member on the battery cover, and at least a portion of the ejector component contacts the battery cover. When the battery cover is in the removable state, the ejector component ejects the battery cover.

[0016] In this way, by controlling the movement of the button component (pressing), the mounting part on the battery cover and the limiting part on the button component are engaged and connected, thus ensuring the battery cover's stability in the locked state. Simultaneously, when the battery cover is fixed relative to the lock housing, the inner wall of the battery cover abuts against the ejector component. Then, by pressing the button component in the opposite direction, the mounting part on the battery cover disengages from the limiting part on the button component, and the battery cover is ejected by the movement of the ejector component. This greatly simplifies the battery cover disassembly process. The ejected portion allows the user to remove the battery cover completely, reducing the difficulty of opening the battery cover and improving the user experience. Even when the lock housing is subjected to severe vibration or external impact, it effectively prevents the battery from loosening, ensuring stable operation of the device. This also solves the problem in existing technologies where the battery cover uses a snap-lock mechanism, which easily deforms the latch after prolonged fastening and removal, increasing the difficulty of opening the battery cover and reducing the user experience.

[0017] Compared to the existing technology that relies on a snap-fit ​​design, the ejector and limiting components in this application are designed to be movable, which reduces the risk of wear and deformation. Even under long-term repeated use, it can maintain good fastening performance and extend the service life of the battery cover and lock case. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0019] Figure 1 An exploded view of an embodiment of the battery cover fastening structure according to the present invention is shown.

[0020] The above figures include the following reference numerals:

[0021] 10. Battery cover; 11. Mounting component; 110. Mounting plate; 1101. Mounting hole; 12. Fixing component; 120. Fixing plate; 20. Lock case; 21. Placement cavity; 22. Through hole; 23. Fourth connecting hole; 24. Fixing hole; 30. Ejector component; 31. Mounting protrusion; 32. Second elastic component; 40. Button component; 41. Limiting component; 410. Limiting protrusion; 42. Button protrusion; 43. First connecting groove; 44. First elastic component; 45. Second connecting groove; 50. Button bracket; 51. First connecting hole; 52. First connecting component; 60. Mounting bracket; 61. Guide hole; 62. Third connecting hole; 63. Second connecting component. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] To address the problem that existing battery covers using snap fasteners are prone to deformation when fastened and removed over extended periods, leading to increased difficulty in opening the cover and reduced user experience, this invention provides a battery cover fastening structure.

[0024] Please refer to Figure 1 As shown, this utility model provides a battery cover fastening structure for connecting a battery cover 10 and a lock housing 20. The battery cover fastening structure includes a latching assembly. The lock housing 20 has a placement cavity 21 for accommodating the latching assembly. The latching assembly includes an ejector component 30 and a button component 40. The ejector component 30 and the button component 40 are movably disposed. The button component 40 is provided with a limiting member 41, and the battery cover 10 is provided with a mounting member 11. The battery cover 10 has a locked state that is engaged with the lock housing 20 and a removed state that is separated from the lock housing 20. When the battery cover 10 is in the locked state, the limiting member 41 on the button component 40 is engaged with the mounting member 11 on the battery cover 10, and at least a portion of the ejector component 30 is in contact with the battery cover 10. When the battery cover 10 is in the removed state, the ejector component 30 ejects the battery cover 10.

[0025] By applying the technical solution of this utility model, the movement of the button component 40 is controlled (pressed) to make the mounting part 11 on the battery cover 10 cooperate with the limiting part 41 on the button component 40, thus ensuring the fixation of the battery cover 10 in the locked state. Simultaneously, when the battery cover 10 is fixed relative to the lock housing 20, the inner wall of the battery cover 10 abuts against the ejector component 30. Then, when the button component 40 is pressed, it moves in the opposite direction, causing the mounting part 11 on the battery cover 10 to disengage from the limiting part 41 on the button component 40. The battery cover 10 is then ejected by the movement of the ejector component 30. This greatly simplifies the disassembly process of the battery cover 10. The ejected portion allows the user to remove the battery cover 10 completely, reducing the difficulty of opening the battery cover 10 and improving the user experience. Even when the lock housing 20 is subjected to severe vibration or external impact, it effectively prevents the battery from loosening, ensuring the stable operation of the device. This solves the problem in the existing technology where the battery cover 10 uses a snap fastener, which can easily cause deformation of the fastener when it is fastened and removed over a long period of time, thus increasing the difficulty of opening the battery cover 10 and reducing the user experience.

[0026] Compared to the existing technology that relies on a snap-fit ​​design, the ejector component 30 and the limiting component 41 in this application adopt a movable design, which reduces the risk of wear and deformation. Even under long-term repeated use, it can maintain good snap-fit ​​performance and extend the service life of the battery cover 10 and the lock shell 20.

[0027] In this application, the locking assembly further includes a button bracket 50 and a mounting bracket 60; the button component 40 is movably connected to the button bracket 50; the ejector component 30 is movably disposed on the mounting bracket 60 and contacts the battery cover 10; the button bracket 50 and the mounting bracket 60 are interconnected; and the button bracket 50 is connected within the placement cavity 21 of the lock housing 20. Through the above arrangement, the design of the button bracket 50 and the mounting bracket 60 respectively ensures the coordination of the button component 40 and the ejector component 30 during their movement. Simultaneously, the connection between the button bracket 50 and the mounting bracket 60 forms a stable support structure, enhancing the mechanical strength and stability of the entire locking structure, maintaining good locking and unlocking performance even in complex working environments.

[0028] Specifically, the limiting member 41 includes two limiting protrusions 410, and the mounting member 11 includes two mounting plates 110, each with a mounting hole 1101. When the battery cover 10 is in the locked state, the two limiting protrusions 410 respectively pass through the two mounting holes 1101. Through the above arrangement, the button component 40 drives the two limiting protrusions 410 to move and engage with the mounting holes 1101 on the two mounting plates 110, achieving multi-point fixation of the battery cover 10 in the locked state. Compared with single-point fixation, this significantly improves the stability of the battery cover 10. Even if it is subjected to vibration or impact inside the lock housing 20, the battery cover 10 is not easy to loosen, ensuring good contact between the battery and the device and avoiding the risk of power failure due to battery loosening. At the same time, when the battery cover 10 is in the locked state, it abuts against the ejector component 30, facilitating the subsequent removal of the battery cover 10 and greatly simplifying the operation.

[0029] Specifically, the button component 40 is provided with a button protrusion 42, and the lock housing 20 is provided with a through hole 22 communicating with the placement cavity 21. The button protrusion 42 is movably inserted into the through hole 22. With the above arrangement, after pressing the button component 40, the two mounting plates 110 on the battery cover 10 can be inserted between the limiting protrusion 410 on the button component 40 and the inner wall of the placement cavity 21. Then, the button component 40 is released so that the two limiting protrusions 410 on the button component 40 are respectively inserted into the two mounting holes 1101, thereby fixing the battery cover 10.

[0030] To allow the button component 40 to be movably positioned relative to the button bracket 50, the button bracket 50 is provided with two first connecting slots 43. The locking assembly also includes two first elastic elements 44, one end of which is connected to the two first connecting slots 43, and the other end of which is connected to the button bracket 50. Through this arrangement, the first elastic elements 44 provide elastic restoring force to the button component 40, allowing it to automatically return to its original position after operation, eliminating the need for manual reset by the user and improving operational convenience and user experience. Simultaneously, the elastic restoring mechanism reduces hard contact and friction between the button component 40 and the lock housing 20 or other structural components, reducing wear caused by long-term use. Furthermore, the cushioning effect of the elastic elements effectively reduces noise generated during operation, improving the product's quietness and durability.

[0031] In this embodiment, the first elastic element 44 is a spring.

[0032] In this application, as Figure 1As shown, the mounting bracket 60 is provided with a guide hole 61. The ejector component 30 is movably disposed within the guide hole 61 along its extension direction. A limiting groove is provided on the inner wall of the guide hole 61 along its circumferential direction, and a mounting protrusion 31 is provided on the outer circumferential wall of the ejector component 30 along its circumferential direction. The mounting protrusion 31 is limited and connected to the limiting groove. Through the above arrangement, the cooperation between the mounting protrusion 31 and the limiting groove limits the displacement of the ejector component 30 along the extension direction of the guide hole 61. The limiting groove has a certain length along the length direction of the guide hole 61, so that the ejector component 30 has a certain amount of displacement along the extension direction of the guide hole 61. This can restrict the ejector component 30 when it moves to a specific position, preventing excessive displacement or detachment of the ejector component 30.

[0033] Specifically, the button bracket 50 is provided with a second connecting groove 45, and the locking assembly also includes a second elastic element 32. One end of the second elastic element 32 is connected to the end of the ejector component 30 away from the battery cover 10, and the other end of the second elastic element 32 is connected to the second connecting groove 45. Through the above arrangement, the design of the second elastic element 32 provides elastic restoring force for the ejector component 30, ensuring that the ejector component 30 can automatically return to its original position after the ejection action is completed, maintaining stable contact with the battery cover 10. At the same time, the other end of the second elastic element 32 is fixed in the second connecting groove 45, ensuring the stable positioning of the second elastic element 32 and preventing the second elastic element 32 from shifting or falling off during operation. When the battery cover 10 is in the locked state, the battery cover 10 presses against the ejector component 30, causing the ejector component 30 to compress the second elastic member 32. At this time, the ejector component 30 abuts against the battery cover 10, so that when the battery cover 10 and the button component 40 are subsequently released and in the removed state, the elastic restoring force of the second elastic member 32 enables the ejector component 30 to automatically eject the battery cover 10, so that the entire battery cover 10 can be completely removed through the ejected part of the battery cover 10. This greatly reduces the difficulty of operation and solves the problem that the existing technology of using a snap fastener to fasten and remove the battery cover 10 for a long time is prone to deformation of the fastener, which increases the difficulty of opening the battery cover 10 and reduces the user experience.

[0034] In this embodiment, the second elastic element 32 is a spring.

[0035] To achieve the interconnection between the button bracket 50 and the mounting bracket 60, the button bracket 50 is provided with two first connecting holes 51, and the mounting bracket 60 is provided with two second connecting holes corresponding to the two first connecting holes 51. Two first connecting parts 52 are respectively inserted into the first connecting holes 51 and the second connecting holes to connect the button bracket 50 and the mounting bracket 60. Through this arrangement, the connection via the two connecting holes and corresponding connecting parts achieves a stable bond between the button bracket 50 and the mounting bracket 60, improving the mechanical stability of the entire locking assembly, resisting external impacts and vibrations, and ensuring the reliability and durability of the locking assembly under various operating conditions.

[0036] To secure the latch assembly within the housing 21 of the lock housing 20, the mounting bracket 60 has two third connecting holes 62, and the housing 21 of the lock housing 20 has two fourth connecting holes 23 corresponding to the two third connecting holes 62. Two second connecting components 63 are respectively inserted into the third connecting holes 62 and the fourth connecting holes 23, thus connecting the mounting bracket 60 to the housing 21. This secures the mounting bracket 60 within the housing 21 of the lock housing 20 via the second connecting components 63, ensuring its stability, preventing shaking or displacement during operation, and improving the overall stability of the latch assembly.

[0037] In this embodiment, the first connecting component 52 and the second connecting component 63 may be selected as bolts or pins, respectively.

[0038] In this application, a fixing member 12 is provided at one end of the battery cover 10 opposite to the mounting member 11. The fixing member 12 includes two fixing plates 120. Two fixing holes 24 are respectively provided in the placement cavity 21 of the lock housing 20, and the two fixing plates 120 are respectively inserted into the two fixing holes 24. In this way, when installing the battery cover 10, the two fixing plates 120 are first inserted into the two fixing holes 24 on the lock housing 20 to initially position the battery cover 10. Then, the two mounting plates 110 on the battery cover 10 are engaged with the two limiting protrusions 410 on the button component 40 to lock the battery cover 10. The overall operation is convenient, improves assembly efficiency and accuracy, and reduces production costs.

[0039] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0040] The battery cover fastening structure connects the battery cover 10 and the lock housing 20. The battery cover fastening structure includes a latch assembly. The lock housing 20 has a placement cavity 21 for accommodating the latch assembly. The latch assembly includes an ejector component 30 and a button component 40. The ejector component 30 and the button component 40 are movably disposed. The button component 40 is provided with a limiting member 41, and the battery cover 10 is provided with a mounting member 11. The battery cover 10 has a locked state that engages with the lock housing 20 and a removed state that is separated from the lock housing 20. When the battery cover 10 is in the locked state, the limiting member 41 on the mounting member engages with the mounting member 11 on the battery cover 10, and at least a portion of the ejector component 30 contacts the battery cover 10. When the battery cover 10 is in the removed state, the ejector component 30 ejects the battery cover 10. In this way, by controlling the movement of the button component 40, the mounting part 11 on the battery cover 10 is engaged with the limiting part 41 on the button component 40, thus ensuring the fixation of the battery cover 10 in the locked state. Simultaneously, when the battery cover 10 is fixed relative to the lock housing 20, the inner wall of the battery cover 10 abuts against the ejector component 30. Then, by pressing the button component 40 in the opposite direction, the mounting part 11 on the battery cover 10 disengages from the limiting part 41 on the button component 40, and the battery cover 10 is ejected by the movement of the ejector component 30. This greatly simplifies the disassembly process of the battery cover 10. The ejected portion allows the user to remove the battery cover 10 completely, reducing the difficulty of opening the battery cover 10 and improving the user experience. Even when the lock housing 20 is subjected to severe vibration or external impact, it effectively prevents the battery from loosening, ensuring stable operation of the device. This solves the problem in existing technologies where the battery cover uses a snap-lock mechanism, which easily deforms the latch after prolonged fastening and removal, increasing the difficulty of opening the battery cover and reducing the user experience.

[0041] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0042] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0043] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship 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. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0044] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0045] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A battery cover fastening structure for connecting a battery cover (10) and a lock housing (20), the battery cover fastening structure comprising a locking assembly, the lock housing (20) having a placement cavity (21) for receiving the locking assembly, characterized in that, The locking assembly includes: The ejector component (30) and the button component (40) are respectively movably arranged. The button component (40) is provided with a limiting component (41), and the battery cover (10) is provided with a mounting component (11). The battery cover (10) has a locked state that is connected to the lock housing (20) and a removed state that is separated from the lock housing (20). When the battery cover (10) is in the locked state, the limiting member (41) on the button component (40) is connected to the mounting member (11) on the battery cover (10), and at least a portion of the ejector component (30) contacts the battery cover (10). When the battery cover (10) is in the removed state, the ejector component (30) ejects the battery cover (10).

2. The battery cover fastening structure according to claim 1, characterized in that, The locking assembly also includes: A button bracket (50) is provided, and the button component (40) is movably connected to the button bracket (50). Mounting bracket (60), the ejector component (30) is movably mounted on the mounting bracket (60) and contacts the battery cover (10), the button bracket (50) is connected to the mounting bracket (60), and the button bracket (50) is connected to the placement cavity (21) of the lock shell (20).

3. The battery cover fastening structure according to claim 2, characterized in that, The limiting member (41) includes two limiting protrusions (410), and the mounting member (11) includes two mounting plates (110). Each mounting plate (110) is provided with a mounting hole (1101) so that when the battery cover (10) is in the locked state, the two limiting protrusions (410) are respectively inserted into the two mounting holes (1101).

4. The battery cover fastening structure according to claim 1, characterized in that, The button component (40) is provided with a button protrusion (42), and the lock shell (20) is provided with a through hole (22) communicating with the placement cavity (21). The button protrusion (42) is movably inserted into the through hole (22).

5. The battery cover fastening structure according to claim 2, characterized in that, The button bracket (50) is provided with two first connecting slots (43) respectively, and the locking assembly further includes: Two first elastic elements (44) are provided, one end of which is respectively connected to the two first connecting grooves (43), and the other end of which is respectively connected to the button bracket (50).

6. The battery cover fastening structure according to claim 2, characterized in that, The mounting bracket (60) is provided with a guide hole (61). The ejector component (30) is movably disposed in the guide hole (61) along the extension direction of the guide hole (61). The guide hole (61) is provided with a limiting groove on its inner wall along its circumferential direction. The ejector component (30) is provided with a mounting protrusion (31) on its outer circumferential wall along its circumferential direction. The mounting protrusion (31) is limited and connected to the limiting groove.

7. The battery cover fastening structure according to claim 2, characterized in that, The button bracket (50) is provided with a second connecting groove (45), and the locking assembly further includes: The second elastic member (32) has one end connected to the end of the ejector (30) away from the battery cover (10), and the other end connected to the second connecting groove (45).

8. The battery cover fastening structure according to claim 2, characterized in that, The button bracket (50) is provided with two first connection holes (51), and the mounting bracket (60) is provided with two second connection holes corresponding to the two first connection holes (51). Two first connection components (52) are respectively inserted into the first connection holes (51) and the second connection holes to connect the button bracket (50) and the mounting bracket (60).

9. The battery cover fastening structure according to claim 2, characterized in that, The mounting bracket (60) is provided with two third connection holes (62), and the placement cavity (21) of the lock shell (20) is provided with two fourth connection holes (23) corresponding to the two third connection holes (62). Two second connection components (63) are respectively inserted into the third connection holes (62) and the fourth connection holes (23) so that the mounting bracket (60) is connected to the placement cavity (21).

10. The battery cover fastening structure according to claim 1, characterized in that, The battery cover (10) is provided with a fixing member (12) at one end opposite to the mounting member (11). The fixing member (12) includes two fixing plates (120). The placement cavity (21) of the lock shell (20) is provided with two fixing holes (24). The two fixing plates (120) are respectively inserted into the two fixing holes (24).

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