An electronic device key mounting structure
By using a snap-fit mechanism and a U-shaped unlocking plate, the problem of loosening and abnormal noise after repeated disassembly and assembly of traditional snap-fit button installation structures is solved, achieving quick disassembly and assembly and a stable connection, thus improving the reliability and ease of maintenance of electronic devices.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN HENGFA TECH CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-28
AI Technical Summary
Traditional snap-on button installation structures are prone to weakening of the locking force due to metal fatigue or plastic aging during repeated disassembly and assembly, resulting in problems such as loosening and abnormal noise. In addition, disassembly is cumbersome and increases maintenance costs.
It adopts a snap-fit mechanism, a U-shaped unlocking plate and related matching structures. It uses a trapezoidal snap-fit block and a first spring to achieve quick fixation. The U-shaped unlocking plate can be disassembled without tools. The arc-shaped snap-fit block and arc-shaped slot enhance stability. The sealing ring and the limiting ring ensure sealing and sliding range.
It improves the efficiency of button assembly and disassembly, enhances connection stability and sealing, reduces malfunctions caused by loosening, and lowers maintenance costs.
Smart Images

Figure CN224569906U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic equipment technology, specifically to a button mounting structure for electronic equipment. Background Technology
[0002] As a core component of human-computer interaction, the reliability of the button's installation structure, ease of disassembly and assembly, and sealing performance directly affect the user experience and lifespan of the device. Currently, most mainstream button installation structures use snap-fit fixing.
[0003] However, traditional snap-fit components are subjected to repeated elastic deformation during multiple disassembly and assembly processes, which can easily lead to a decrease in the locking force due to metal fatigue or plastic aging. This can result in problems such as loose keycaps and abnormal clicking noises. In severe cases, it can even cause key jamming and failure, directly affecting the accuracy of the device's operation response. Moreover, the snap-fit structure is mostly a hidden design, which requires the use of tools to pry it open during disassembly. This is not only cumbersome, but may also cause damage to the keycap body and the edge of the device shell due to improper force, significantly increasing repair costs. Utility Model Content
[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a button mounting structure for electronic devices to solve the problems mentioned in the background. This utility model has a novel structure. By setting up a snap-fit mechanism, a U-shaped unlocking plate, and related cooperating structures, during installation, the trapezoidal snap-fit block can automatically snap into the slot under the action of the first spring, realizing the quick fixation of the guide post and the mounting bracket. When disassembly is required, simply press the U-shaped unlocking plate to push the trapezoidal snap-fit block to compress the first spring and retract into the receiving slot, releasing the snap-fit state. The entire process does not require additional tools, greatly improving the efficiency of button assembly and disassembly, and facilitating later maintenance and replacement.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an electronic device button mounting structure, comprising an electronic device housing, an mounting groove on the upper side of the housing, a guide post slidably fitted on the inner wall of the mounting groove, a button cap slidably fitted on the inner wall of the housing, a mounting bracket fixedly connected to the inner wall of the button cap, a connecting groove on the lower side of the mounting bracket, storage grooves on both sides of the guide post, a snap-fit mechanism inside the storage groove, a U-shaped unlocking plate slidably fitted on the upper side of the guide post, a trigger spring mounted on the lower side of the inner wall of the mounting groove, a trigger plate cooperating with the trigger spring fixedly connected to the lower end of the guide post, and a cover plate threadedly fitted on the upper side of the button cap.
[0006] Furthermore, the locking mechanism includes a trapezoidal locking block that slides into the inner wall of the storage groove. A guide rod is fixedly connected to the side of the trapezoidal locking block near the guide post. A first spring is sleeved on the guide rod. The inner walls of the connecting groove are provided with locking grooves that cooperate with the trapezoidal locking block on both sides.
[0007] Furthermore, the guide rod is slidably fitted on one side of the inner wall of the storage groove, and the two ends of the first spring abut against the trapezoidal block and the inner wall of the storage groove, respectively.
[0008] Furthermore, both sides of the guide post are fixedly connected with arc-shaped locking blocks, and both sides of the inner wall of the connecting groove are provided with arc-shaped locking grooves that cooperate with the arc-shaped locking blocks.
[0009] Furthermore, a sealing ring is installed on the outer side of the guide post, and the outer side of the sealing ring is interference-fitted with the inner wall of the mounting groove.
[0010] Furthermore, a limit ring is fixedly connected to the guide post.
[0011] Furthermore, an abutment ring is fixedly connected to the guide post, and a second spring is provided on the lower side of the abutment ring. The two sides of the second spring abut against the abutment ring and the inner wall of the mounting groove, respectively.
[0012] Furthermore, two limiting rods are fixedly connected to the upper side of the mounting bracket, and the U-shaped unlocking plate is slidably fitted on the limiting rods. A third spring is sleeved on the two limiting rods, and the two ends of the third spring abut against the mounting bracket and the U-shaped unlocking plate respectively.
[0013] The beneficial effects of this utility model are:
[0014] 1. This utility model, by setting up a snap-fit mechanism, a U-shaped unlocking plate and related matching structures, allows the trapezoidal snap-fit block to automatically snap into the slot under the action of the first spring during installation, achieving quick fixation between the guide post and the mounting bracket. When disassembly is required, simply press the U-shaped unlocking plate to push the trapezoidal snap-fit block to compress the first spring and retract into the receiving slot, releasing the snap-fit state. The entire process does not require additional tools, greatly improving the efficiency of button disassembly and assembly, and facilitating later maintenance and replacement.
[0015] 2. By setting arc-shaped locking blocks and arc-shaped slots, this utility model enhances the stability of the connection between the guide post and the mounting bracket. The cooperation between the arc-shaped locking blocks and arc-shaped slots can further limit the relative wobbling between the two on the basis of the locking mechanism, making the button more stable during use, reducing problems such as button failure caused by loose connection, and improving the reliability of button operation. Attached Figure Description
[0016] Figure 1This is a three-dimensional structural diagram of an electronic device button mounting structure according to the present invention;
[0017] Figure 2 This is a schematic cross-sectional view of the electronic device housing according to the present invention, which describes an electronic device button mounting structure.
[0018] Figure 3 This is a schematic diagram of the cover plate separation structure of the button mounting structure of an electronic device according to the present invention;
[0019] Figure 4 This is a schematic cross-sectional view of the keycap structure of the electronic device key mounting structure of this utility model;
[0020] Figure 5 This is a schematic diagram of the guide post connection structure of an electronic device button mounting structure according to the present invention;
[0021] Figure 6 This is a schematic diagram of the snap-fit mechanism of an electronic device button mounting structure according to the present invention.
[0022] In the diagram: 1. Electronic device housing; 2. Mounting slot; 3. Guide post; 4. Keycap; 5. Mounting bracket; 6. Connecting slot; 7. Storage slot; 8. Snap-fit mechanism; 81. Trapezoidal snap block; 82. Guide rod; 83. First spring; 84. Snap slot; 9. U-shaped unlocking plate; 10. Trigger spring; 11. Trigger plate; 12. Cover plate; 13. Arc-shaped snap block; 14. Arc-shaped snap slot; 15. Sealing ring; 16. Limiting ring; 17. Abutment ring; 18. Second spring; 19. Limiting rod; 20. Third spring. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] Please refer to Figures 1 to 6This utility model provides a technical solution: an electronic device button mounting structure, including an electronic device housing 1, an mounting groove 2 on the upper side of the electronic device housing 1, a guide post 3 slidably fitted on the inner wall of the mounting groove 2, a button cap 4 slidably fitted on the inner wall of the electronic device housing 1, a mounting bracket 5 fixedly connected to the inner wall of the button cap 4, a connecting groove 6 on the lower side of the mounting bracket 5, storage grooves 7 on both sides of the guide post 3, a snap-fit mechanism 8 inside the storage groove 7, a U-shaped unlocking plate 9 slidably fitted on the upper side of the guide post 3, a trigger spring 10 installed on the lower side of the inner wall of the mounting groove 2, a trigger plate 11 that cooperates with the trigger spring 10 fixedly connected to the lower end of the guide post 3, and a cover plate 12 threadedly fitted on the upper side of the button cap 4. The button cap 4 is connected to the guide post 3 through the connecting groove 6 of the mounting bracket 5. The guide post 3 slides in the mounting groove 2. When the button cap 4 is pressed, the guide post 3 drives the trigger plate 11 to move down and trigger the trigger spring 10 to realize the button function. The cover plate 12 is threadedly connected to the button cap 4 to protect the internal structure. The basic trigger function of the button is realized through the cooperation of various components. The cover plate 12 plays the role of protecting the internal structure and aesthetics.
[0025] In this embodiment, the snap-fit mechanism 8 includes a trapezoidal snap-fit block 81 that slides on the inner wall of the storage groove 7. A guide rod 82 is fixedly connected to the side of the trapezoidal snap-fit block 81 near the guide post 3. A first spring 83 is sleeved on the guide rod 82. Slots 84 that mate with the trapezoidal snap-fit block 81 are provided on both sides of the inner wall of the connecting groove 6. The guide rod 82 slides on one side of the inner wall of the storage groove 7, and the two ends of the first spring 83 abut against the trapezoidal snap-fit block 81 and the inner wall of the storage groove 7, respectively. When the guide post 3 engages with the connecting groove 6 of the mounting bracket 5, the trapezoidal snap-fit block 81 pops out of the storage groove 7 under the action of the first spring 83 and snaps into the slot 84, thus achieving the snap-fit fixation between the guide post 3 and the mounting bracket 5. When separation is required, the trapezoidal snap-fit block 81 compresses the first spring 83 and retracts into the storage groove 7 through relevant operations. The snap-fit mechanism 8 enables the quick connection and fixation of the guide post 3 and the mounting bracket 5, ensuring the stability of the connection.
[0026] In this embodiment, arc-shaped locking blocks 13 are fixedly connected to both sides of the guide post 3, and arc-shaped locking grooves 14 that mate with the arc-shaped locking blocks 13 are opened on both sides of the inner wall of the connecting groove 6. A sealing ring 15 is installed on the outer side of the guide post 3, and the outer side of the sealing ring 15 is press-fitted with the inner wall of the mounting groove 2. A limit ring 16 is fixedly connected to the guide post 3. An abutment ring 17 is fixedly connected to the guide post 3, and a second spring 18 is provided on the lower side of the abutment ring 17. The two sides of the second spring 18 abut against the abutment ring 17 and the inner wall of the mounting groove 2, respectively. Two limit rods 19 are fixedly connected to the upper side of the mounting bracket 5. A U-shaped unlocking plate 9 is slidably fitted on the limit rods 19, and a third spring 20 is sleeved on the two limit rods 19. The two ends of the third spring 20 abut against the mounting bracket 5 and the U-shaped unlocking plate 9, respectively. When the guide post 3 and the connecting groove 6 are engaged, the arc-shaped locking block 13 engages with the arc-shaped locking groove 14, further enhancing the stability of the connection; the sealing ring 15 is interference-fitted with the inner wall of the mounting groove 2, which plays a sealing role; the limiting ring 16 restricts the sliding range of the guide post 3; when the button cap 4 is pressed, the abutting ring 17 compresses the second spring 18; after being released, the second spring 18 resets and drives the guide post 3 back to its original position; the U-shaped unlocking plate 9 slides on the limiting rod 19; the third spring 20 ensures its initial position when it is not under force; the arc-shaped locking block 13 and the arc-shaped locking groove 14 improve the connection stability; the sealing ring 15 prevents dust and liquid from entering; the limiting ring 16 prevents the guide post 3 from sliding excessively; the second spring 18 realizes the automatic reset of the button; the limiting rod 19 and the third spring 20 ensure the normal operation of the U-shaped unlocking plate 9.
[0027] When using the device, the guide post 3 and the mounting bracket 5 inside the button cap 4 are connected by the connecting groove 6. At this time, the trapezoidal locking block 81 in the locking mechanism 8 is locked into the locking groove 84 under the action of the first spring 83, and the arc-shaped locking block 13 is locked into the arc-shaped locking groove 14, realizing a stable connection between the two. The cover plate 12 is threaded onto the button cap 4 for protection. When using the button, pressing the button cap 4 moves the guide post 3 downward, which compresses the second spring 18 by the abutting ring 17. The trigger plate 11 at the lower end of the guide post 3 triggers the trigger spring 10 to realize the button function. After being released, the second spring 18 resets, causing the guide post 3 and the button cap 4 to return to their original positions. When unlocking and separation are required, unscrew the cover plate 12, press the U-shaped unlocking plate 9, and let it slide on the limit rod 19 and compress the third spring 20. The U-shaped unlocking plate 9 pushes the trapezoidal block 81 to compress the first spring 83 and retract into the receiving groove 7, thus releasing the latch and achieving separation of the guide post 3 from the mounting bracket 5. The sealing ring 15 ensures the sealing of the mounting groove 2, and the limit ring 16 restricts the sliding stroke of the guide post 3, ensuring that the entire button structure works stably and reliably.
[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model.
[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A button mounting structure for an electronic device, comprising an electronic device housing (1), characterized in that: The upper side of the electronic device housing (1) is provided with a mounting groove (2), the inner wall of the mounting groove (2) is slidably fitted with a guide post (3), the inner wall of the electronic device housing (1) is slidably fitted with a button cap (4), the inner wall of the button cap (4) is fixedly connected with a mounting bracket (5), the lower side of the mounting bracket (5) is provided with a connecting groove (6), both sides of the guide post (3) are provided with storage grooves (7), the inside of the storage groove (7) is provided with a snap-fit mechanism (8), the upper side of the guide post (3) is slidably fitted with a U-shaped unlocking plate (9), the lower side of the inner wall of the mounting groove (2) is equipped with a trigger spring (10), the lower end of the guide post (3) is fixedly connected with a trigger plate (11) that cooperates with the trigger spring (10), and the upper side of the button cap (4) is threadedly fitted with a cover plate (12).
2. The button mounting structure for an electronic device according to claim 1, characterized in that: The snap-fit mechanism (8) includes a trapezoidal snap-fit block (81) that slides on the inner wall of the storage groove (7). A guide rod (82) is fixedly connected to the side of the trapezoidal snap-fit block (81) near the guide post (3). A first spring (83) is sleeved on the guide rod (82). Slots (84) that cooperate with the trapezoidal snap-fit block (81) are opened on both sides of the inner wall of the connecting groove (6).
3. The electronic device button mounting structure according to claim 2, characterized in that: The guide rod (82) is slidably fitted on one side of the inner wall of the storage groove (7), and the two ends of the first spring (83) abut against the trapezoidal block (81) and the inner wall of the storage groove (7), respectively.
4. The electronic device button mounting structure according to claim 1, characterized in that: Both sides of the guide post (3) are fixedly connected with arc-shaped locking blocks (13), and both sides of the inner wall of the connecting groove (6) are provided with arc-shaped locking grooves (14) that cooperate with the arc-shaped locking blocks (13).
5. The electronic device button mounting structure according to claim 1, characterized in that: A sealing ring (15) is installed on the outer side of the guide post (3), and the outer side of the sealing ring (15) is interference-fitted with the inner wall of the mounting groove (2).
6. The electronic device button mounting structure according to claim 1, characterized in that: A limit ring (16) is fixedly connected to the guide post (3).
7. The electronic device button mounting structure according to claim 1, characterized in that: An abutment ring (17) is fixedly connected to the guide post (3). A second spring (18) is provided on the lower side of the abutment ring (17). The two sides of the second spring (18) abut against the inner wall of the abutment ring (17) and the mounting groove (2), respectively.
8. The electronic device button mounting structure according to claim 1, characterized in that: The upper side of the mounting bracket (5) is fixedly connected to two limiting rods (19), and the U-shaped unlocking plate (9) is slidably fitted on the limiting rods (19). A third spring (20) is sleeved on the two limiting rods (19), and the two ends of the third spring (20) abut against the mounting bracket (5) and the U-shaped unlocking plate (9) respectively.