Hinge device and electronic device

Abstract

The application discloses a hinge device and electronic equipment, relates to the hinge technical field, and is characterized in that a driving wheel is connected with a turnover support, a stop elastic sheet is connected with a fixing base, and a driven wheel is rotationally connected to the driving wheel; when the turnover support drives the driving wheel to rotate forward, a pushing rod slides along a sliding groove, a clamping part can be clamped on a one-way tooth, and the turnover support hovers relative to the fixing base; or the pushing rod drives the driven wheel to rotate through the sliding groove wall, a butt joint part extrudes a convex part, the stop elastic sheet is elastically deformed, and then the clamping part is separated from the one-way tooth; when the turnover support drives the driving wheel to rotate reversely, the pushing rod slides along the sliding groove, when the one-way tooth passes the clamping part, the pushing rod drives the driven wheel to rotate through the sliding groove wall, the butt joint part is separated from the convex part, the stop elastic sheet returns to a free state, and the turnover support can be reset relative to the fixing base. Therefore, the problem that the turnover hovering and the barrier-free reset cannot be considered simultaneously is solved, and the technical effect of improving the maintenance efficiency is achieved.

Description

Technical Field

[0001] This application relates to the field of hinge technology, and more particularly to a hinge device and electronic device. Background Technology

[0002] In modular electronic devices, a layered structure is often used to improve space utilization. When maintenance of the lower-level module is required, the upper-level module needs to be frequently disassembled and reassembled. Although existing technologies have corresponding flipping mechanisms to flip the upper-level module to expose the lower-level module, thereby improving maintenance convenience, the existing flipping mechanisms cannot take into account both hovering and unobstructed reset during the flipping process, resulting in low maintenance efficiency. Summary of the Invention

[0003] This application provides a hinge device and an electronic device to at least solve the problem of low maintenance efficiency caused by the inability to simultaneously handle hovering and unobstructed reset during the flipping process.

[0004] This application provides a hinge device suitable for electronic devices. The electronic devices include a fixed base and a flip bracket. The hinge device includes a driving wheel, a driven wheel, and a stop spring. The driving wheel is connected to the flip bracket, the stop spring is connected to the fixed base, and the driven wheel is rotatably connected to the driving wheel. The driving wheel is equipped with a push rod and a one-way tooth, and the driven wheel is equipped with an abutment part and a sliding groove. The push rod is inserted into the sliding groove and can slide around the circumference of the driving wheel; the stop spring is equipped with a snap-fit ​​part and a protrusion. When the flipping bracket drives the driving wheel to rotate in the forward direction, the push rod slides along the sliding groove, and the locking part can lock into the one-way tooth, and the flipping bracket is suspended relative to the fixed seat; or the push rod drives the driven wheel to rotate through the groove wall of the sliding groove, and the abutting part squeezes the protrusion, causing the stop spring to undergo elastic deformation, thereby causing the locking part to disengage from the one-way tooth. When the flip bracket drives the drive wheel to rotate in the opposite direction, the push rod slides along the sliding groove. When the one-way tooth passes the locking part, the push rod drives the driven wheel to rotate through the groove wall of the sliding groove, causing the abutment part to separate from the protrusion part. The stop spring returns to its free state, and the flip bracket can be reset relative to the fixed seat.

[0005] An electronic device includes a fixed base, a flip bracket, and the aforementioned hinge device. The fixed base includes a device housing and a chassis ear connected to each other. The chassis ear includes a chassis ear housing and a chassis ear bracket connected to each other. The chassis ear bracket is disposed on the device housing. The driving wheel of the hinge device is connected to the flip bracket. The stop spring of the hinge device is connected to the chassis ear housing. The driven wheel of the hinge device is rotatably connected to the driving wheel.

[0006] The hinge device of this application utilizes the sliding stroke of the push rod within the sliding groove to divide the operation of the tilting bracket into three stages: In the first stage, the bracket rotates forward until the engaging part engages with the one-way tooth, suspending the tilting bracket at the target angle, allowing maintenance personnel to perform maintenance without manual support. In the second stage, the bracket continues to rotate forward, the push rod drives the driven wheel to rotate through the sliding groove wall, the abutment part presses against the protrusion, causing the engaging part to disengage from the one-way tooth, unlocking the tilting bracket and allowing it to tilt in the opposite direction. In the third stage, the bracket rotates in the opposite direction, the one-way tooth passes the engaging part, the driven wheel is driven to rotate, the abutment part separates from the protrusion, the stop spring returns to its free state, and the tilting bracket automatically resets. These three stages are sequentially connected without additional operation, allowing the tilting bracket to achieve both suspension and unobstructed reset within the same hinge device, effectively solving the problem of low maintenance efficiency in existing tilting mechanisms. Attached Figure Description

[0007] To more clearly illustrate the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0008] Figure 1 A schematic diagram of the hinge device provided in an embodiment of this application (right hinge device). Figure 2 This application provides a schematic diagram of the hinge device (left hinge device) in an embodiment. Figure 3 This is a schematic diagram of the drive wheel of the hinge device provided in the embodiments of this application; Figure 4 A schematic diagram of the stop spring of the hinge device provided in the embodiments of this application; Figure 5 An exploded structural diagram of the chassis lugs and hinge device of the electronic device provided in the embodiments of this application; Figure 6 A first exploded structural diagram of the chassis lugs, hinge device, and mounting base of the electronic device provided in the embodiments of this application; Figure 7 for Figure 6 A magnified view of a portion of point A in the middle; Figure 8 A second exploded structural diagram of the chassis lug, hinge device, and mounting base provided in an embodiment of this application; Figure 9 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application; Figure 10 This is a schematic diagram of the structure of the flip bracket of the electronic device provided in the embodiment of this application, which is flipped to 0°. Figure 11 for Figure 10 A state diagram of the fixed base, hinge device, and flip-up bracket; Figure 12 This is a schematic diagram of the structure of the flip bracket of the electronic device provided in the embodiment of this application, which is flipped by 30°. Figure 13 for Figure 12 A state diagram of the fixed base, hinge device, and flip-up bracket; Figure 14 This is a schematic diagram of the structure of the flip bracket of the electronic device provided in the embodiment of this application, which is flipped 60°. Figure 15 for Figure 14 A state diagram of the fixed base, hinge device, and flip-up bracket; Figure 16 This is a schematic diagram of the structure of the flip bracket of the electronic device provided in the embodiment of this application, which is flipped 90°. Figure 17 for Figure 16 A diagram showing the status of the fixed base, hinge mechanism, and flip-up bracket.

[0009] The above figures include the following reference numerals: 1. Fixed base; 2. Flipping bracket; 3. Drive wheel; 4. Driven wheel; 5. Stop spring; 6. Push rod; 7. One-way tooth; 8. Abutment part; 9. Sliding groove; 10. Snap-fit ​​part; 11. Protrusion; 12. Limiting end; 13. Sliding surface; 14. Abutment surface; 15. Positioning surface; 16. Rotating shaft; 17. Through hole; 18. Positioning pin; 19. Positioning hole; 20. Active fastener; 21. Active locking hole; 22. Limiting pin; 23. Stroke limiting surface; 24. First limiting surface; 25. Second limiting surface 26. Boss; 27. Rubber gasket; 28. Through hole; 29. ​​Spring body; 30. Snap-fit ​​end; 31. Spring locking hole; 32. Abutment end; 33. Spring fastener; 34. Left hinge device; 35. Right hinge device; 36. Equipment housing; 37. Chassis ear; 38. Chassis ear housing; 39. Chassis ear bracket; 40. Positioning part; 41. Positioning groove; 42. Bearing column; 43. Bearing part; 44. Left chassis ear; 45. Right chassis ear; 46. Cover plate; 47. Receiving cavity; 48. Inclined guide surface. Detailed Implementation

[0010] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0011] It should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and 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 of this application. The terms "installed," "connected," and "joined" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two elements. The terms "parallel," "perpendicular," and "equal" include the described situation and situations similar to the described situation, the range of which is within an acceptable deviation range, wherein the acceptable deviation range is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, where an acceptable deviation range for approximate parallelism can be, for example, within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, where an acceptable deviation range for approximate perpendicularity can also be, for example, within 5°. "Equal" includes absolute equality and approximate equality, where an acceptable deviation range for approximate equality can be, for example, a difference between the two equal items being less than or equal to 5% of either one. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0012] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0013] Example 1 like Figure 8 and Figure 9 As shown, the electronic device of this application includes a fixed base 1 and a flip bracket 2, and a hinge device is suitable for the electronic device. Hardware such as circuit boards can be mounted on both the fixed base 1 and the flip bracket 2. The hinge device connects the flip bracket 2 and the fixed base 1, enabling the flip bracket 2 to flip relative to the fixed base 1. This facilitates the hovering and unobstructed resetting of the flip bracket 2 relative to the fixed base 1 when maintaining hardware located below the flip bracket 2 on the fixed base 1, thus solving the problem of low maintenance efficiency caused by the inability of existing hinge devices to simultaneously handle hovering and unobstructed resetting.

[0014] like Figure 1and Figure 2 As shown, the hinge device of this application includes a driving wheel 3, a driven wheel 4, and a stop spring 5. The driving wheel 3 is connected to the flipping bracket 2 and rotates synchronously with the flipping bracket 2. The stop spring 5 is connected to the fixed base 1. The driven wheel 4 is rotatably connected to the driving wheel 3, so that the flipping bracket 2 can be hovered and reset without obstruction relative to the fixed base 1 through the cooperation of the driving wheel 3, the driven wheel 4, and the stop spring 5.

[0015] The driving wheel 3 is cylindrical, and a push rod 6 extends from the end face of the driving wheel 3 near the driven wheel 4 toward the driven wheel 4. The push rod 6 is cylindrical and parallel to the axis of the driving wheel 3. A one-way tooth 7 is also provided on the end face of the driving wheel 3 near the driven wheel 4. The one-way tooth 7 is located on the edge area of ​​the end face of the driving wheel 3 near the circumferential surface, so that the one-way tooth 7 can cooperate with the stop spring 5 to operate. The structure is simple and compact.

[0016] The driven wheel 4's axis coincides with the axis of the driving wheel 3. The driven wheel 4 has a sliding groove 9, which is arc-shaped and extends circumferentially around the axis of the driving wheel 3. The push rod 6 is inserted axially into the sliding groove 9 and can slide circumferentially along the driving wheel 3. The driven wheel 4 is also provided with an abutment part 8, which cooperates with the protrusion 11.

[0017] The stop spring 5 has a locking part 10 and a protrusion 11. The locking part 10 engages or disengages with the one-way tooth 7. When the locking part 10 engages with the one-way tooth 7, the driving wheel 3 is fixed relative to the stop spring 5, thereby suspending the flipping bracket 2 relative to the fixed base 1. When the locking part 10 disengages from the one-way tooth 7, the driving wheel 3 can rotate relative to the stop spring 5, so that the flipping bracket 2 can be reset relative to the fixed base 1. The protrusion 11 cooperates with the abutment part 8 of the driven wheel 4 to realize the reset operation of the flipping bracket 2 relative to the fixed base 1.

[0018] When the user lifts the flip bracket 2, causing the flip bracket 2 to drive the drive wheel 3 to rotate in the forward direction, the push rod 6 slides along the sliding groove 9. In the initial stage of sliding, the push rod 6 does not contact the groove wall of the sliding groove 9, and the push rod 6 is in idle stroke. At this time, the locking part 10 can lock onto the one-way tooth 7. When the locking part 10 locks onto the one-way tooth 7 and the user releases the flip bracket 2, under the action of the flip bracket 2's own gravity, the flip bracket 2 has the tendency to drive the drive wheel 3 to rotate in the reverse direction. Therefore, the locking part 10 abuts against the one-way tooth 7 to prevent the drive wheel 3 from rotating in the reverse direction, and the flip bracket 2 is suspended relative to the fixed base 1. Based on this, when the flipping bracket 2 continues to rotate forward until the push rod 6 slides to abut against the wall of the sliding groove 9, under the action of the flipping bracket 2 continuing to rotate forward, the push rod 6 drives the driven wheel 4 to rotate forward through the wall of the sliding groove 9. The driven wheel 4 drives the abutting part 8 to rotate forward. The abutting part 8 gradually contacts and squeezes the protrusion 11. The protrusion 11 is displaced under the squeezing of the abutting part 8. The displacement of the protrusion 11 causes the stop spring 5 to undergo elastic deformation. The locking part 10 moves away from the one-way tooth 7 under the action of the elastic deformation of the stop spring 5, thereby causing the locking part 10 to separate from the one-way tooth 7.

[0019] When the locking part 10 separates from the one-way tooth 7 and the user drops the flip bracket 2, causing the drive wheel 3 to rotate in the opposite direction, the push rod 6 slides along the sliding groove 9. Following the one-way tooth 7 past the locking part 10, the push rod 6 drives the driven wheel 4 to rotate through the groove wall of the sliding groove 9. The driven wheel 4 drives the abutment part 8 to rotate, and the abutment part 8 gradually disengages from the protrusion 11, causing the stop spring 5 to return to its free state. The locking part 10 is in a free position and outside the area of ​​the one-way tooth 7. The flip bracket 2 smoothly resets relative to the fixed base 1, achieving unobstructed reset. In this application, the forward rotation direction is counterclockwise, and the reverse rotation direction is clockwise.

[0020] The hinge device of this application utilizes the sliding stroke of the push rod 6 within the sliding groove 9 to divide the operation of the flipping bracket 2 into three stages: In the first stage, the bracket rotates forward until the engaging part 10 engages with the one-way tooth 7, suspending the flipping bracket 2 at the target angle, allowing maintenance personnel to perform maintenance without manual support. In the second stage, the bracket continues to rotate forward, and the push rod 6 drives the driven wheel 4 to rotate through the groove wall of the sliding groove 9. The abutment part 8 presses against the protrusion 11, causing the engaging part 10 to disengage from the one-way tooth 7, unlocking the flipping bracket 2 and allowing it to flip in the opposite direction. In the third stage, the bracket rotates in the opposite direction, and after the one-way tooth 7 passes the engaging part 10, the driven wheel 4 is driven to rotate, the abutment part 8 separates from the protrusion 11, the stop spring 5 returns to its free state, and the flipping bracket 2 automatically resets. These three stages are sequentially connected without additional operation, allowing the suspension and unobstructed reset of the flipping bracket 2 to be achieved within the same hinge device, effectively solving the problem of low maintenance efficiency in existing flipping mechanisms.

[0021] like Figure 3 As shown, several one-way teeth 7 are provided, with the inclination direction of the several one-way teeth 7 being consistent, and all the one-way teeth 7 are arranged circumferentially around the driving wheel 3. The angle between two adjacent one-way teeth 7 is set according to actual needs. Preferably, three one-way teeth 7 are provided, and the central angle between two adjacent one-way teeth 7 is 30°.

[0022] like Figure 10 and Figure 11 As shown, the flip bracket 2 is horizontally arranged by default, meaning the angle between the flip bracket 2 and the horizontal plane is 0°. When the user rotates the flip bracket 2 forward, the flip bracket 2 drives the drive wheel 3 to rotate forward, and the drive wheel 3 drives the one-way tooth 7 to rotate forward. When the locking part 10 on the stop spring 5 engages with the first one-way tooth 7, the user releases the flip bracket 2. Under the weight of the flip bracket 2 itself, the first one-way tooth 7 and the locking part 10 are in contact, and the first one-way tooth 7 restricts the locking part 10 from rotating in the opposite direction. At this time, the angle between the flip bracket 2 and the horizontal plane is 30°, as shown. Figure 12 and Figure 13 As shown, this allows the flip bracket 2 to hover at a position 30° relative to the horizontal plane. When the user continues to rotate the flip bracket 2 forward, and the locking part 10 engages with the second one-way tooth 7, the user releases the flip bracket 2. Under the weight of the flip bracket 2 itself, the second one-way tooth 7 and the locking part 10 are in abutment, and the second one-way tooth 7 restricts the locking part 10 from rotating in the opposite direction. At this time, the angle between the flip bracket 2 and the horizontal plane is 60°, as shown. Figure 14 and Figure 15 As shown, this allows the flip bracket 2 to hover at a 60° angle relative to the horizontal plane. When the user continues to rotate the flip bracket 2 forward, and the locking part 10 engages with the third one-way tooth 7, the user releases the flip bracket 2. Under the weight of the flip bracket 2 itself, the third one-way tooth 7 and the locking part 10 are in contact, and the third one-way tooth 7 restricts the locking part 10 from rotating in the opposite direction. At this time, the angle between the flip bracket 2 and the horizontal plane is 90°, as shown. Figure 16 and Figure 17 As shown, this allows the flip bracket 2 to hover at a 90° angle relative to the horizontal plane. Therefore, users can position the flip bracket 2 at different hovering angles according to actual working conditions, freeing up space for maintenance of hardware such as circuit boards and storage devices beneath it. By arranging multiple unidirectional teeth 7 in the same direction around the drive wheel 3, the flip bracket 2 can achieve step-by-step flipping and hovering. Maintenance personnel can perform maintenance operations at multiple angles without manual support, solving the problem of low maintenance efficiency caused by the inability of existing flipping mechanisms to simultaneously achieve step-by-step hovering and unobstructed reset.

[0023] like Figure 3As shown, each one-way tooth 7 has a limiting end 12 and a sliding surface 13. The limiting end 12 includes an abutting surface 14 and a positioning surface 15. The abutting surface 14 and the sliding surface 13 extend radially along the driving wheel. The positioning surface 15 is perpendicular to the axis of the driving wheel and is located in the positive rotation direction of the driving wheel. The sliding surface 13 is located downstream of the abutting surface 14.

[0024] There are two ways to set the abutment surface 14. The first way is that the abutment surface 14 extends radially along the drive wheel and axially along the drive wheel. In this case, the abutment surface 14 is set perpendicular to the positioning surface 15. When the locking part 10 is locked to the one-way tooth 7, the locking part 10 directly abuts to the limiting end 12. That is, the locking part 10 directly abuts to the abutment surface 14 and the positioning surface 15. This prevents the one-way tooth 7 from rotating in the opposite direction through the abutment surface 14 and prevents the locking part 10 from moving along the drive wheel axially and away from the stop spring 5 through the positioning surface 15, thus preventing the locking part 10 from deforming. Therefore, by cooperating with the abutment surface 14 and the positioning surface 15 to prevent the drive wheel 3 from rotating in the opposite direction, the locking stability of the locking part 10 and the limiting end 12 is improved, thereby realizing the suspension of the flip bracket 2. The second type is where the abutment surface 14 is inclined, that is, the end of the abutment surface 14 near the stop spring 5 is upstream of the end away from the stop spring 5. In this case, the abutment surface 14 and the positioning surface 15 have an acute angle between them. Figure 3 As shown, when the engaging part 10 engages with the limiting end 12, the engaging part 10 engages within the angle between the abutting surface 14 and the positioning surface 15, which can improve the abutting stability. In addition, the sliding surface 13 is inclined, specifically in the direction that the end of the sliding surface 13 near the stop spring 5 is upstream of the end away from the stop spring 5, so that when the engaging part 10 slides into or out of the tooth groove along the sliding surface 13, the sliding surface 13 can guide the engaging part 10 to smoothly slide over the one-way tooth 7, reducing wear and jamming. By limiting the extension direction and inclination direction of the abutting surface 14, the sliding surface 13 and the positioning surface 15, the engaging part 10 can be reliably positioned and hovered by tightly fitting with the abutting surface 14 and the positioning surface 15 when hovering, and when the flipping bracket 2 continues to rotate forward, the engaging part 10 can smoothly slide over the one-way tooth 7 along the sliding surface 13, solving the problem that the existing flipping mechanism cannot take into account both hovering and unobstructed reset, resulting in low maintenance efficiency.

[0025] like Figure 1 and Figure 2As shown, a rotating shaft 16 extends axially from the axis of the driving wheel 3 toward the driven wheel 4, and a through hole 17 is provided on the driven wheel 4. The driven wheel 4 is fitted onto the rotating shaft 16 through the through hole 17, allowing the driven wheel 4 to rotate relative to the driving wheel 3 around the rotating shaft 16. A sliding groove 9 extends circumferentially around the rotating shaft 16; the driven wheel 4 is positioned between the driving wheel 3 and the stop spring 5, allowing the abutment portion 8 on the driven wheel 4 to cooperate with the protrusion 11 on the stop spring 5 to engage and disengage the locking portion 10 and the one-way tooth 7, and facilitating the insertion of the push rod 6 into the sliding groove 9 on the driven wheel 4, so that the push rod 6 can slide along the sliding groove 9 when the driving wheel 3 rotates, and drive the driven wheel 4 to rotate through the groove wall of the sliding groove 9; thereby realizing the hovering and unobstructed reset of the flipping bracket 2, solving the problem of low maintenance efficiency caused by the inability of the existing flipping mechanism to simultaneously achieve step-by-step hovering and unobstructed reset.

[0026] like Figure 7 As shown, the flip bracket 2 is equipped with a positioning post 18, as... Figure 1 and Figure 2 As shown, the drive wheel 3 has a corresponding positioning hole 19. Preferably, multiple positioning pins 18 and positioning holes 19 are provided, with each positioning hole 19 corresponding to a positioning pin 18. The positioning pin 18 passes through the corresponding positioning hole 19, so that the drive wheel 3 can be positioned relative to the flip bracket 2 through the cooperation of the positioning pin 18 and the positioning hole 19. This provides a pre-position for subsequent fastening and connection, facilitates quick alignment during assembly, and improves assembly efficiency. The hinge device also includes an active fastener 20. The drive wheel 3 has an active locking hole 21, and the flip bracket 2 has a corresponding threaded hole. Preferably, multiple active locking holes 21 and threaded holes are provided, with each active locking hole 21 and threaded hole corresponding to a corresponding threaded hole. The active fastener 20 passes through the active locking hole 21 and is screwed into the corresponding threaded hole, firmly locking the drive wheel 3 onto the flip bracket 2. The active fastener 20 and the positioning post 18 work together. The positioning post 18 undertakes the positioning function, and the active fastener 20 provides the locking force. The two work together to form a reliable fixed connection between the active wheel 3 and the flipping bracket 2.

[0027] like Figure 1 and Figure 2 As shown, a limit post 22 is formed by extending axially along the circumferential side of the driven wheel 4, as... Figure 5As shown, the fixed base 1 is provided with a travel limiting surface 23. When the push rod 6 of the driving wheel 3 drives the driven wheel 4 to rotate through the wall of the sliding groove 9, the limiting post 22 rotates synchronously with the driven wheel 4. When the limiting post 22 rotates to abut against the travel limiting surface 23, the limiting post 22 is blocked by the travel limiting surface 23, and the driven wheel 4 cannot continue to rotate, thereby limiting the rotation angle range of the driven wheel 4. Through the cooperation of the limiting post 22 and the travel limiting surface 23, the forward rotation stroke of the driven wheel 4 is limited, avoiding damage to parts or functional failure caused by the movement of the mechanism exceeding the design range. This allows the hinge device to maintain stable hovering and unobstructed reset performance after multiple flipping cycles.

[0028] like Figure 1 and Figure 5 As shown, a first limiting surface 24 is formed on the driven wheel 4, and a corresponding second limiting surface 25 is formed on the fixed base 1. When the push rod 6 of the driving wheel 3 drives the driven wheel 4 to rotate in the reverse direction through the wall of the sliding groove 9, the first limiting surface 24 rotates synchronously with the driven wheel 4. When the first limiting surface 24 rotates to abut against the second limiting surface 25, the first limiting surface 24 is blocked by the second limiting surface 25, and the driven wheel 4 cannot continue to rotate, thereby limiting the reverse rotation angle range of the driven wheel 4. Through the cooperation of the first limiting surface 24 and the second limiting surface 25, the reverse rotation stroke of the driven wheel 4 is limited, avoiding damage to parts or functional failure caused by the movement of the mechanism exceeding the design range, so that the hinge device can still maintain stable hovering and unobstructed reset performance after multiple flipping cycles.

[0029] like Figure 1 and Figure 2As shown, the driven wheel 4 is plate-shaped, and a boss 26 is formed on the circumferential side wall of the driven wheel 4 protruding radially outward. Along the forward rotation direction of the driving wheel, a first limiting surface 24 is formed on the upstream side end face of the boss 26. Preferably, the first limiting surface 24 is a plane passing through the axis of the driven wheel 4. When the driven wheel 4 rotates in the reverse direction to the limit position, the upstream end face abuts against the second limiting surface 25 on the fixed base 1 to prevent the driven wheel 4 from continuing to rotate, thereby limiting the reverse rotation limit of the driven wheel 4. The downstream side of the boss 26 forms an abutment portion 8, which is inclined so that the distance between the abutment portion 8 and the stop spring 5 gradually increases along the forward rotation direction of the driving wheel. When the flipping bracket 2 drives the driving wheel 3 to rotate forward, and the push rod 6 drives the driven wheel 4 to rotate through the groove wall of the sliding groove 9, the abutment portion 8 rotates accordingly and presses the protrusion 11 on the stop spring 5, lifting the protrusion 11 and causing the upper part of the stop spring 5 to elastically deform in the direction away from the driving wheel 3, and the locking portion 10 disengages from the one-way tooth 7. The inclined abutment portion 8 can improve the smoothness of sliding when the abutment portion 8 and the protrusion 11 are pressed together. In addition, by forming the first limiting surface 24 and the abutment portion 8 on the same boss 26 structure, the driven wheel 4 can achieve both the limiting function and the action of pressing the protrusion 11 during rotation. The structure is compact, the number of parts is reduced, and the assembly complexity is reduced.

[0030] like Figure 1 and Figure 2 As shown, the hinge device also includes a rubber pad 27 with a through hole 28 in the middle. The rubber pad 27 is fitted onto the shaft 16 of the driving wheel 3 through the through hole 28, positioning it between the driving wheel 3 and the driven wheel 4. When the driven wheel 4 is fitted onto the shaft 16, it presses against the rubber pad 27. The rubber pad 27 fills the axial gap between the driving wheel 3 and the driven wheel 4. When the flipping bracket 2 drives the driving wheel 3 to rotate forward or backward, the rubber pad 27 provides a buffering effect, absorbing the axial impact and vibration between the driving wheel 3 and the driven wheel 4, reducing friction and wear between metal parts, and reducing noise during rotation. At the same time, the elastic restoring force of the rubber pad 27 allows the driven wheel 4 to maintain a stable relative position with the driving wheel 3 when not driven by the push rod 6, preventing unnecessary axial movement of the driven wheel 4 on the shaft 16.

[0031] like Figure 1 , Figure 2 and Figure 4As shown, the stop spring 5 includes a spring body 29, a locking part 10, and a protrusion 11, both of which are disposed on the spring body 29. The locking part 10 extends from the spring body 29 toward the driving wheel 3, and the protrusion 11 extends from the spring body 29 toward the driven wheel 4. Preferably, the spring body 29, the locking part 10, and the protrusion 11 are integrally formed. When the flipping bracket 2 drives the driving wheel 3 to rotate in the forward direction, the abutment part 8 on the driven wheel 4 presses the protrusion 11 and drives the protrusion 11 to move away from the one-way tooth 7. After being pushed, the protrusion 11 transmits the force to the spring body 29. The upper half of the spring body 29 bends away from the one-way tooth 7 and generates elastic deformation. The locking part 10 moves synchronously away from the one-way tooth 7 along with the deformation of the spring body 29, and then disengages from the one-way tooth 7. With both the locking part 10 and the protrusion 11 located on the same spring body 29, when the driven wheel 4 abuts against the protrusion 11, the spring body 29 undergoes elastic deformation as a whole. The disengagement of the locking part 10 is completed synchronously with the deformation of the spring body 29, eliminating the need for additional linkage parts. This results in a compact structure with direct deformation transmission and rapid response. When the flipping bracket 2 drives the driving wheel 3 to rotate in the opposite direction, the driven wheel 4 rotates in the opposite direction, and the abutment part 8 separates from the protrusion 11. The protrusion 11 no longer bears the abutment force of the abutment part 8, and the spring body 29 recovers its free state through its own elasticity. At this time, the locking part 10 is located outside the area of ​​the one-way tooth 7. When the flipping bracket 2 is rotated forward again, the locking part 10 and the one-way tooth 7 engage normally again.

[0032] like Figure 1 , Figure 2 and Figure 4As shown, the spring body 29 extends towards the driven wheel 4 to form a protrusion 11. The protrusion 11 is provided with an inclined guide surface 48. Along the positive rotation direction of the driving wheel, the protrusion height of the inclined guide surface 48 towards the driven wheel 4 gradually increases. The inclined guide surface 48 is correspondingly disposed on the rotation path of the abutment part 8. The plane perpendicular to the axis of the driving wheel is defined as the projection plane. That is, the projection of the rotation path of the abutment part 8 on the projection plane and the projection of the inclined guide surface 48 on the projection plane intersect, so that the abutment part 8 can normally abut against the inclined guide surface 48 when rotating. Since the width (radial distance) of the abutment part 8 is relatively wide, the inclined guide surface 48 can also be set such that the protrusion height of the inclined guide surface 48 towards the driven wheel 4 gradually increases from top to bottom, as long as it is ensured that the abutment part 8 and the inclined guide surface 48 can abut normally. When the flipping bracket 2 drives the driving wheel 3 to rotate in the forward direction, the push rod 6 slides in the sliding groove 9 and drives the driven wheel 4 to rotate. The abutting part 8 of the driven wheel 4 then slides against the inclined guide surface 48. As the abutting part 8 rotates in the forward direction, the inclined guide surface 48 is subjected to a thrust in the direction away from the one-way tooth 7. This thrust is transmitted to the spring body 29, causing the spring body 29 to bend in the direction away from the one-way tooth 7 and generate elastic deformation. The locking part 10 then disengages from the one-way tooth 7. When the flipping bracket 2 drives the driving wheel 3 to rotate in the reverse direction, the driven wheel 4 rotates in the reverse direction, and the abutting part 8 slides in the reverse direction along the inclined guide surface 48. Subsequently, the abutting part 8 completely separates from the inclined guide surface 48, and the spring body 29 no longer bears external force. It recovers its free state by its own elasticity, and the locking part 10 then returns to the position separated from the one-way tooth 7 area. By gradually increasing the height of the inclined guide surface 48, the abutment part 8 can smoothly push the inclined guide surface 48 during sliding, causing the spring body 29 to undergo controllable elastic deformation. The locking part 10 smoothly disengages from the one-way tooth 7. After separation, the spring body 29 can automatically return to its free state without manual assistance, achieving unobstructed reset of the flip bracket 2. This solves the problem of low maintenance efficiency caused by the inability of existing flip mechanisms to simultaneously handle step-by-step hovering and unobstructed reset. Specifically, when the abutment part 8 separates from the inclined guide surface 48, the abutment sliding amount of the locking part 10 relative to the abutment part 8 along the drive wheel axis has a first length, and the maximum distance between the inclined guide surface 48 and the spring body 29 along the drive wheel axis is a second length. The second length is greater than the first length, so that the sliding amount of the inclined guide surface 48 along the drive wheel axis is greater than the abutment sliding amount of the locking part 10 relative to the abutment part 8 along the drive wheel axis, so as to facilitate the normal separation of the locking part 10 and the abutment part 8.

[0033] like Figure 1 , Figure 2 and Figure 4As shown, the latching part 10 is a latching plate formed by bending from the spring body 29 toward the driving wheel 3. The latching plate bends from the top of the spring body 29 toward the driven wheel 4, and the bending angle is not a right angle, so that the latching plate is tilted relative to the spring body 29. Preferably, along the positive rotation direction of the driving wheel, the end of the latching plate near the spring body 29 is located upstream of the end away from the spring body 29. The driven wheel 4 and the stop spring 5 are arranged parallel to each other, and the latching plate is tilted relative to the driven wheel 4. The bending line of the latching plate and the spring body 29 has an angle with respect to the horizontal plane. The free end of the snap-fit ​​plate facing the drive wheel 3 is thickened to form a snap-fit ​​end 30. The snap-fit ​​end 30 engages or disengages with the limiting end 12 of the one-way tooth 7 on the circumferential edge of the drive wheel 3. The thickening treatment gives the snap-fit ​​end 30 higher structural strength when it engages with the limiting end 12, making it less prone to bending deformation or wear due to repeated engagement and disengagement. Preferably, the end of the snap-fit ​​end 30 is folded, equivalent to the thickness of two snap-fit ​​plates. When the snap-fit ​​end 30 engages with the limiting end 12, as... Figure 7 As shown, the force exerted by the limiting end 12 on the locking part 10 can be decomposed into three orthogonal components: a component Y along the axis of the drive wheel towards the stop spring 5, a vertically downward component Z, and a horizontal component X towards the housing ear 37. These three components are perpendicular to each other, meaning the resultant force exerted by the limiting end 12 on the locking part 10 is from the upper left to the lower right. The positioning surface 15 is perpendicular to the axis of the drive wheel, forming an axial limit on the locking end 30 to prevent it from moving along the axis of the drive wheel towards the drive wheel 3. The spring body 29 provides support for the locking end 30 through the locking plate, preventing it from moving along the axis of the drive wheel towards the spring body 29. By tilting the snap-fit ​​plate and setting the bending angle, the force direction of the snap-fit ​​end 30 when it contacts the limiting end 12 is decomposed into three orthogonal components. The snap-fit ​​end 30 is limited and blocked in the axial direction by the positioning surface 15 and supported by the spring body 29, and cannot move towards or away from the driving wheel 3. It is supported by the spring body 29 in the vertical and horizontal directions. The snap-fit ​​end 30 is stably limited in all three directions, and will not produce unexpected deformation or axial movement. This ensures the stability and reliability of the snap-fit ​​engagement in the hovering state and prevents the flip bracket 2 from loosening due to gravity or external force.

[0034] like Figure 4As shown, the spring body 29 has a spring locking hole 31, and one end of the spring body 29 has an abutment end 32 for abutting against the fixed seat 1. The hinge device also includes a spring fastener 33, which passes through the spring locking hole 31 and connects to the fixed seat 1, fixing the spring body 29 to the fixed seat 1. When the locking part 10 engages with the one-way tooth 7, the gravity of the flipping bracket 2 is transmitted to the locking part 10 through the driving wheel 3. The locking part 10 transmits the force to the spring body 29, and the spring body 29 transmits the force to the fixed seat 1 through the abutment end 32 and the spring fastener 33. The fixed seat 1 bears the suspension load, preventing the spring body 29 from plastic deformation or fatigue fracture due to long-term stress. The suspension pressure on the spring body 29 can be directly transmitted to the fixed seat 1, improving the load-bearing capacity and durability of the hinge device in the suspension state. Among them, the spring fastener 33 passes through the spring locking hole 31 to lock the spring body 29 onto the housing 38 of the housing ear 37, and the abutting end 32 abuts against the housing ear bracket 39 of the housing ear 37, ensuring that the stop spring 5 will not shift or loosen during operation, and ensuring the stability of the engagement between the snap-fit ​​part 10 and the one-way tooth 7 and the reliability of the spring body 29 returning to a free state when reset.

[0035] like Figure 8As shown, the hinge device is configured with a left hinge device 34 and a right hinge device 35 arranged symmetrically on the left and right sides. The left hinge device 34 is located on the left side of the fixed base 1, and the right hinge device 35 is located on the right side of the fixed base 1. The driving wheel 3 of the left hinge device 34 is connected to the left side of the flipping bracket 2, and the driving wheel 3 of the right hinge device 35 is connected to the right side of the flipping bracket 2. The driving wheels 3 of the left hinge device 34 and the right hinge device 35 are coaxially arranged. The driven wheel 4 of the left hinge device 34 is rotatably mounted on the driving wheel 3 of the left hinge device 34, and the driven wheel 4 of the right hinge device 35 is rotatably mounted on the driving wheel 3 of the right hinge device 35. The stop spring 5 of the left hinge device 34 is connected to the left side of the fixed base 1, and the stop spring 5 of the right hinge device 35 is connected to the right side of the fixed base 1. Rotating the flip bracket 2 simultaneously drives the driving wheel 3 of the left hinge device 34 and the driving wheel 3 of the right hinge device 35 to rotate in the forward direction, engaging the locking part 10 of the stop spring 5 of the left hinge device 34 with the one-way tooth 7 of the driving wheel 3 of the left hinge device 34, and engaging the locking part 10 of the stop spring 5 of the right hinge device 35 with the one-way tooth 7 of the driving wheel 3 of the right hinge device 35, thereby suspending the flip bracket 2 relative to the fixed seat 1; rotating the flip bracket 2 so that the locking part 10 of the stop spring 5 of the left hinge device 34 disengages from the one-way tooth 7 of the driving wheel 3 of the left hinge device 34 and the locking part 10 of the stop spring 5 of the right hinge device 35 disengages from the one-way tooth 7 of the driving wheel 3 of the right hinge device 35, the flip bracket 2 is rotated in the reverse direction to reset the flip bracket 2 relative to the fixed seat 1. By using a symmetrically arranged double hinge device to provide synchronous hovering on both sides of the flip bracket 2, the flip bracket 2 is subjected to balanced force during rotation, avoiding twisting, deformation or jamming of the flip bracket 2 due to force on one side. This ensures the stability of the hovering angle of the flip bracket 2 and the smoothness of the reset action, and solves the problem of low maintenance efficiency caused by the inability of existing hinge devices to simultaneously handle step-by-step hovering and unobstructed reset.

[0036] Furthermore, a push-button spring clip (not shown in the figure) is provided on the flip bracket 2, and a corresponding locking hole (not shown in the figure) is provided on the drive wheel 3. The push-button spring clip automatically engages with the locking hole under the action of spring force, realizing the quick locking of the drive wheel 3. When disassembling, pressing the pressing end of the spring clip causes the spring clip to retract and disengage from the locking hole, thereby releasing the lock and separating the drive wheel 3 from the flip bracket 2. This allows the drive wheel 3 to be quickly disassembled and installed without tools, facilitating the replacement of the drive wheel 3 and improving maintenance efficiency. At the same time, the locking part 10 is designed as a replaceable wear part. The locking part 10 is detachably connected to the spring body 29 by a snap or a micro screw. The locking part 10 and the one-way tooth 7 frequently engage and disengage, making it the most important wear part. By designing it as a replaceable wear part, only the locking part 10 needs to be replaced when it wears out, instead of replacing the entire stop spring 5. This improves the maintainability and service life of the hinge device and reduces maintenance costs.

[0037] Example 2 An electronic device includes a fixed base 1, a flip bracket 2, and a hinge device as described in Embodiment 1. The flip bracket 2 is connected between the fixed base 1 and the fixed base 1, so that the flip bracket 2 is hinged relative to the fixed base 1 through the hinge device. In the solution described in Embodiment 2, the contents that are the same as or similar to those in the solution described in Embodiment 1 can be referred to the description in Embodiment 1, and will not be repeated here.

[0038] The hinge device of this application is applicable to electronic devices such as servers, switches, and storage devices. Preferably, the electronic device in this application is a server, which includes a fixed base 1 and a flip bracket 2. Figure 9 , Figure 10 , Figure 12 , Figure 14 and Figure 16 As shown, a hinge device is disposed between the flip bracket 2 and the fixed base 1 to realize the flip bracket 2 flipping relative to the fixed base 1.

[0039] The hinge mechanism includes a driving wheel 3, a driven wheel 4, and a stop spring 5. The driving wheel 3 is connected to the flipping bracket 2, the stop spring 5 is connected to the fixed base 1, and the driven wheel 4 is rotatably connected to the driving wheel 3. Through the cooperation of the driving wheel 3, the driven wheel 4, and the stop spring 5, the flipping bracket 2 can be hovered and reset without obstruction relative to the fixed base 1, thus solving the problem of low maintenance efficiency caused by the inability of existing hinge mechanisms to simultaneously achieve both hovering and unobstructed reset.

[0040] like Figure 14As shown, the mounting base 1 of the server in this application provides the mounting foundation for the flip bracket 2. The bottom layer of the mounting base 1 is equipped with hardware such as DPU (Data Processing Unit), motherboard, and SFF (Small Form Factor) hardware. The flip bracket 2 is located on the top layer of the mounting base 1, that is, the flip bracket 2 is located above the DPU, motherboard and SFF hardware. The flip bracket 2 is equipped with GPU (Graphics Processing Unit). Therefore, when maintenance is required on the DPU, motherboard and SFF hardware, the flip bracket 2 and the GPU located on the flip bracket 2 need to be flipped to make room for maintenance on the DPU, motherboard and SFF hardware located at the bottom of the GPU. Specifically, when maintenance personnel need to replace or repair the DPU, motherboard, and SFF hardware located at the bottom of the GPU, they rotate the flip bracket 2 forward. The flip bracket 2 drives the drive wheel 3 to rotate forward, and the push rod 6 on the drive wheel 3 slides along the extension direction of the sliding groove 9 in the driven wheel 4. At this time, the locking part 10 on the stop spring 5 can engage with the one-way tooth 7 on the drive wheel 3, and the flip bracket 2 is suspended relative to the fixed base 1, freeing up operating space without manual support. After the repair is completed, the flip bracket 2 is rotated forward again, and the push rod 6... The driven wheel 4 rotates due to the sliding groove 9 wall. The abutment part 8 on the driven wheel 4 presses against the protrusion 11 on the stop spring 5, causing the stop spring 5 to elastically deform, thereby causing the locking part 10 to disengage from the one-way tooth 7. The flip bracket 2 rotates in the opposite direction, and the push rod 6 slides along the sliding groove 9. After the one-way tooth 7 passes the locking part 10, the push rod 6 drives the driven wheel 4 to rotate through the sliding groove 9 wall, causing the abutment part 8 to separate from the protrusion 11. The stop spring 5 returns to its free state, and the flip bracket 2 can be reset relative to the fixed seat 1, completing the maintenance operation. The hinge device enables the flip bracket 2 to hover and reset without obstruction, solving the problem of low maintenance efficiency caused by the inability of the existing flip mechanism to simultaneously achieve hovering and reset without obstruction.

[0041] like Figure 8 and Figure 9 As shown, the mounting base 1 includes a housing 36 and a mounting ear 37, with the mounting ear 37 connected to the housing 36. The mounting ear 37 includes a mounting ear housing 38 and a mounting ear support 39, with the mounting ear support 39 connected to the housing 36 and the mounting ear housing 38 connected to the mounting ear support 39. A receiving cavity 47 is formed between the mounting ear housing 38 and the mounting ear support 39. Figure 5As shown, the stop spring 5 is disposed within the receiving cavity 47. The receiving cavity 47 is formed between the ear housing 38 and the ear bracket 39, and the stop spring 5 is housed within the receiving cavity 47, so that the stop spring 5 of the hinge device is integrated with the fixed base 1, resulting in a compact structure and saving installation space. At the same time, the receiving cavity 47 protects the stop spring 5, preventing it from being deformed or displaced due to external impacts or foreign object interference during long-term use. This ensures the stability of the engagement between the snap-fit ​​part 10 and the one-way tooth 7 and the reliability of the stop spring 5 returning to its free state during reset, thereby ensuring the hovering and unobstructed reset performance of the flip bracket 2 relative to the fixed base 1.

[0042] like Figure 5 As shown, the housing 38 of the box ear is provided with a positioning part 40, and the positioning part 40 is provided with a positioning groove 41. The positioning groove 41 is cylindrical and coaxially arranged with the rotating shaft 16. The end of the rotating shaft 16 of the drive wheel 3 away from the flip bracket 2 passes through the positioning groove 41 and can rotate relative to the positioning groove 41. At the same time, the groove wall of the positioning groove 41 forms a limit on the free end of the rotating shaft 16 along the radial direction of the drive wheel, so as to prevent the rotating shaft 16 from undergoing radial deformation or displacement after long-term use, which would affect the cooperation process of the drive wheel 3, the driven wheel 4 and the stop spring 5. The positioning groove 41 simultaneously achieves the dual functions of rotation and radial limiting on the free end of the rotating shaft 16. This ensures smooth rotation when the drive wheel 3 drives the flipping bracket 2 to rotate in the forward or reverse direction, while preventing the rotating shaft 16 from undergoing radial deformation or displacement due to stress during long-term use. It also ensures the fitting accuracy between the push rod 6 and the sliding groove 9, thereby ensuring the accurate and reliable engagement and disengagement of the locking part 10 and the one-way tooth 7. This improves the stability and durability of the hinge device after multiple flipping cycles.

[0043] like Figure 5 , Figure 6 and Figure 7 As shown, the support column 42 is a columnar structure extending from the side of the flip bracket 2 facing the ear housing 38, and the support part 43 is the arc surface on the ear housing 38 facing the flip bracket 2. When the flip bracket 2 rotates forward to its limit angle, the support column 42 abuts against the support part 43. The support part 43 forms a blocking limit on the support column 42 in the rotation direction of the flip bracket 2, restricting the flip bracket 2 from continuing to rotate forward. Through the cooperation of the support column 42 and the support part 43, the flip bracket 2 is mechanically limited when it rotates forward to its limit angle, preventing the flip bracket 2 from rotating excessively and causing damage to the hinge device or circuit board and other components. At the same time, when the support column 42 abuts against the support part 43, it provides maintenance personnel with a clear tactile feedback, making it easy to determine whether the flip bracket 2 has reached its maximum opening angle.

[0044] like Figure 8 and Figure 9As shown, the chassis ears 37 are configured as a left chassis ear 44 and a right chassis ear 45. The left chassis ear 44 is located on the left side of the equipment housing 36, and the right chassis ear 45 is located on the right side of the equipment housing 36. Both the left and right chassis ears 44 and 45 are located at the front end of the equipment housing 36. The hinge device is configured as a left hinge device 34 and a right hinge device 35 arranged symmetrically. The left hinge device 34 is connected between the left chassis ear 44 and the left side of the flip bracket 2, and the right hinge device 35 is connected between the right chassis ear 45 and the right side of the flip bracket 2. The drive wheel 3 of the left hinge device 34 is connected to the left side of the flip bracket 2, and the drive wheel 3 of the right hinge device 35 is connected to the right side of the flip bracket 2. The stop spring 5 of the left hinge device 34 is connected to the left chassis ear 44, and the stop spring 5 of the right hinge device 35 is connected to the right chassis ear 45.

[0045] like Figure 9 As shown, the electronic device also includes a cover plate 46, which is detachably connected to the device housing 36. When the cover plate 46 is removed from the device housing 36, rotating the flip bracket 2 simultaneously drives the drive wheel 3 of the left hinge device 34 and the drive wheel 3 of the right hinge device 35 to rotate in the forward direction, so that the locking part 10 of the left hinge device 34 engages with the one-way tooth 7 of the left hinge device 34 and the locking part 10 of the right hinge device 35 engages with the one-way tooth 7 of the right hinge device 35, thereby suspending the flip bracket 2 relative to the fixed base 1; when rotating the flip bracket 2 so that the locking part 10 of the left hinge device 34 disengages from the one-way tooth 7 of the left hinge device 34 and the locking part 10 of the right hinge device 35 disengages from the one-way tooth 7 of the right hinge device 35, rotating the flip bracket 2 in the reverse direction so that the flip bracket 2 returns to its original position relative to the fixed base 1, and the cover plate 46 can be installed on the device housing 36.

[0046] The left and right housing ears 44 and 45 are respectively located on the left and right sides of the front end of the equipment housing 36. Together with the symmetrically arranged left and right hinge devices 34 and 35, they provide synchronous hovering on both sides of the flip bracket 2. This ensures balanced force on the flip bracket 2 during rotation, preventing twisting, deformation, or jamming caused by unilateral force, thus guaranteeing the stability of the hovering angle and smoothness of the reset action. The cover plate 46 protects the interior of the equipment housing 36 under normal conditions. For maintenance, removing the cover plate 46 allows for unobstructed maintenance via the forward and reverse rotation of the flip bracket 2. After maintenance, the flip bracket 2 resets, and the cover plate 46 is reinstalled. This simple and efficient operation solves the problem of low maintenance efficiency caused by the inability of existing flip mechanisms to simultaneously achieve hovering and unobstructed reset.

[0047] Example 3 A flipping method is implemented using the hinge device of Embodiment 1 or the electronic device of Embodiment 2. In the scheme described in Embodiment 3, the contents that are the same as or similar to those in the schemes described in Embodiments 1 and 2 can be referred to the descriptions in Embodiments 1 and 2, and will not be repeated here.

[0048] S101, rotate the flip bracket 2 in the forward direction, drive the drive wheel 3 to rotate in the forward direction through the flip bracket 2, push the rod 6 to slide along the extension direction of the sliding groove 9, when the locking part 10 of the stop spring 5 is locked with the one-way tooth 7, the flip bracket 2 is in the target hovering position relative to the fixed seat 1.

[0049] When maintenance personnel need to operate the lower-level circuit board or perform wiring, they rotate the flip bracket 2 forward, causing the drive wheel 3 to rotate synchronously forward. The push rod 6 on the drive wheel 3 then slides within the sliding groove 9 of the driven wheel 4. In the initial sliding phase, the push rod 6 has no travel relative to the sliding groove 9; it only slides relative to the driven wheel 4 without driving it. At this time, the locking part 10 on the stop spring 5 can engage with the one-way tooth 7 on the circumferential edge of the drive wheel 3 under elastic force, preventing the drive wheel 3 from rotating in the opposite direction. The flip bracket 2 then hovers relative to the fixed base 1. Through the engagement of the locking part 10 and the one-way tooth 7, maintenance personnel can perform wiring or other maintenance operations in the freed-up lower-level operating space without manually holding the flip bracket 2, solving the problem of low maintenance efficiency caused by the inability of existing flip mechanisms to simultaneously achieve hovering and unobstructed reset.

[0050] S102, continue to rotate the flip bracket 2 in the forward direction. The flip bracket 2 drives the drive wheel 3 to continue to rotate in the forward direction. The push rod 6 drives the driven wheel 4 to rotate through the sliding groove 9. The abutting part 8 of the driven wheel 4 presses the protrusion 11, causing the stop spring 5 to undergo elastic deformation, thereby causing the locking part 10 to disengage from the one-way tooth 7.

[0051] After maintenance is completed, the rotating bracket 2 continues to rotate forward. The drive wheel 3 continues to rotate, and the push rod 6 slides to abut against the wall of the sliding groove 9. The push rod 6 drives the driven wheel 4 to rotate relative to the drive wheel 3 through the wall of the sliding groove 9. The abutting part 8 on the driven wheel 4 rotates and abuts against the protrusion 11 on the stop spring 5, lifting the protrusion 11. The upper part of the stop spring 5 bends in the direction away from the one-way tooth 7, generating elastic deformation. The locking part 10 then moves in the direction away from the one-way tooth 7, causing the locking part 10 to disengage from the one-way tooth 7.

[0052] S103, the reverse rotation of the flip bracket 2 causes the push rod 6 to slide along the sliding groove 9. When the one-way tooth 7 passes the locking part 10, the push rod 6 drives the driven wheel 4 to rotate through the sliding groove 9, causing the abutting part 8 to separate from the protrusion 11. The stop spring 5 returns to its free state, and the flip bracket 2 resets relative to the fixed seat 1.

[0053] After the locking part 10 disengages from the one-way tooth 7, the flipping bracket 2 rotates in the opposite direction, the driving wheel 3 rotates in the opposite direction, and the push rod 6 slides in the opposite direction along the sliding groove 9. After the one-way tooth 7 passes the locking part 10, the push rod 6 drives the driven wheel 4 to rotate through the sliding groove 9. The abutment part 8 on the driven wheel 4 rotates accordingly and separates from the protrusion 11. The stop spring 5 is no longer subjected to external force and recovers its free state by its own elasticity. The locking part 10 then returns to the position separated from the area of ​​the one-way tooth 7, and the flipping bracket 2 is successfully reset relative to the fixed seat 1. The entire reset process does not require manual assistance and achieves unobstructed reset, solving the problem of low maintenance efficiency caused by the inability of the existing flipping mechanism to simultaneously handle hovering and unobstructed reset.

[0054] Furthermore, S101: The forward rotation of the flipping bracket 2 drives the drive wheel 3 to rotate forward, and the push rod 6 slides along the extension direction of the sliding groove 9. When the locking part 10 of the stop spring 5 engages with the one-way tooth 7, the flipping bracket 2 is in the target hovering position relative to the fixed base 1, specifically including: S110, rotate the flip bracket 2 in the forward direction, drive the drive wheel 3 to rotate in the forward direction through the flip bracket 2, and push the rod 6 to slide along the extension direction of the sliding groove 9.

[0055] The maintenance personnel rotate the flip bracket 2 in the forward direction, which drives the drive wheel 3 to rotate in the forward direction. The push rod 6 on the drive wheel 3 then slides along the extension direction in the sliding groove 9 of the driven wheel 4.

[0056] S111, select one of the multiple one-way teeth 7 as the target one-way tooth, continue to rotate the flip bracket 2 in the forward direction, so that the locking part 10 is locked with the target one-way tooth, and the flip bracket 2 is in the target hovering position relative to the fixed base 1.

[0057] During the forward rotation of the flip bracket 2, the maintenance personnel select one of the multiple one-way teeth 7 as the target one-way tooth, so that the locking part 10 on the stop spring 5 engages with the target one-way tooth. At this time, the flip bracket 2 is in the target hovering position relative to the fixed base 1. By actively selecting the target one-way tooth from the multiple one-way teeth 7 for engagement, the flip bracket 2 can achieve step-by-step flipping and step-by-step hovering. The maintenance personnel can flexibly choose the hovering angle according to the operation needs, without having to hold the flip bracket 2 with their hands throughout the process. They can safely perform wiring or other maintenance operations in the freed-up lower operating space, which solves the problem of low maintenance efficiency caused by the inability of the existing flip mechanism to simultaneously achieve step-by-step hovering and unobstructed reset.

[0058] The hinge device and electronic device provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of this application.

Claims

1. A hinge device suitable for electronic devices, said electronic devices comprising a fixed base (1) and a flip bracket (2), characterized in that, The hinge device includes a drive wheel (3), a driven wheel (4) and a stop spring (5). The drive wheel (3) is connected to the flip bracket (2), the stop spring (5) is connected to the fixed base (1), and the driven wheel (4) is rotatably connected to the drive wheel (3). The driving wheel (3) is provided with a push rod (6) and a one-way tooth (7), the driven wheel (4) is provided with an abutment part (8) and a sliding groove (9), the push rod (6) is inserted into the sliding groove (9) and can slide around the driving wheel (3); the stop spring (5) is provided with a snap-fit ​​part (10) and a protrusion (11); When the flipping bracket (2) drives the driving wheel (3) to rotate in the forward direction, the push rod (6) slides along the sliding groove (9), and the snap-fit ​​part (10) can snap onto the one-way tooth (7), and the flipping bracket (2) is suspended relative to the fixed seat (1); or the push rod (6) drives the driven wheel (4) to rotate through the groove wall of the sliding groove (9), and the abutment part (8) squeezes the protrusion (11), causing the stop spring (5) to undergo elastic deformation, thereby causing the snap-fit ​​part (10) to disengage from the one-way tooth (7); When the flip bracket (2) drives the driving wheel (3) to rotate in the opposite direction, the push rod (6) slides along the sliding groove (9). When the one-way tooth (7) passes the snap-fit ​​part (10), the push rod (6) drives the driven wheel (4) to rotate through the groove wall of the sliding groove (9), causing the abutting part (8) to separate from the protrusion (11), the stop spring (5) returns to its free state, and the flip bracket (2) can be reset relative to the fixed seat (1).

2. The hinge device according to claim 1, characterized in that, The one-way teeth (7) are arranged in a plurality of directions and are arranged circumferentially around the drive wheel (3); when the flipping bracket (2) drives the drive wheel (3) to rotate in the forward direction, the locking part (10) can lock onto one of the one-way teeth (7).

3. The hinge device according to claim 1, characterized in that, The one-way tooth (7) has a limiting end (12) and a sliding surface (13). The limiting end (12) includes an abutment surface (14) and a positioning surface (15). The abutment surface (14) and the sliding surface (13) extend radially along the driving wheel (3). The positioning surface (15) is perpendicular to the axis of the driving wheel (3) and along the positive rotation direction of the driving wheel (3). The sliding surface (13) is located downstream of the abutment surface (14). 14) Extending axially along the drive wheel (3), or the abutting surface (14) is inclined and the end of the abutting surface (14) near the stop spring (5) is located upstream of the end away from the stop spring (5); the sliding surface (13) is inclined and the end of the sliding surface (13) near the stop spring (5) is located upstream of the end away from the stop spring (5); the snap-fit ​​part (10) abuts against or separates from the limiting end (12).

4. The hinge device according to claim 1, characterized in that, The driving wheel (3) is provided with a rotating shaft (16), and the driven wheel (4) is provided with a through hole (17). The driven wheel (4) is sleeved on the rotating shaft (16) through the through hole (17) and can rotate around the rotating shaft (16). The driven wheel (4) is located between the driving wheel (3) and the stop spring (5). The sliding groove (9) extends circumferentially around the rotating shaft (16).

5. The hinge device according to claim 1, characterized in that, The flip bracket (2) is provided with a positioning post (18), and the drive wheel (3) is provided with a positioning hole (19). The positioning post (18) passes through the positioning hole (19) and is positioned in cooperation. The hinge device also includes an active fastener (20). The drive wheel (3) is provided with an active locking hole (21). The active fastener (20) passes through the active locking hole (21) and is connected to the flip bracket (2).

6. The hinge device according to claim 1, characterized in that, The driven wheel (4) is provided with a limit post (22), and the fixed seat (1) is provided with a travel limit surface (23). The limit post (22) cooperates with the travel limit surface (23) to limit movement.

7. The hinge device according to claim 1, characterized in that, The driven wheel (4) is provided with a first limiting surface (24), and the fixed seat (1) is provided with a second limiting surface (25). The first limiting surface (24) and the second limiting surface (25) cooperate to limit the movement.

8. The hinge device according to claim 7, characterized in that, The driven wheel (4) has a boss (26) extending radially outward on its circumferential side. Along the positive rotation direction of the driving wheel (3), the upstream end face of the boss (26) forms the first limiting surface (24), and the downstream end face of the boss (26) forms the abutment portion (8). Along the positive rotation direction of the driving wheel (3), the distance between the abutment portion (8) and the stop spring (5) gradually increases.

9. The hinge device according to claim 4, characterized in that, The hinge device also includes a rubber pad (27), which has a through hole (28). The rubber pad (27) is sleeved on the rotating shaft (16) through the through hole (28). The rubber pad (27) is located between the driving wheel (3) and the driven wheel (4).

10. The hinge device according to claim 3, characterized in that, The stop spring (5) also includes a spring body (29), and the snap-fit ​​part (10) and the protrusion part (11) are both disposed on the spring body (29). When the flip bracket (2) drives the drive wheel (3) to rotate in the forward direction, the abutment part (8) squeezes the protrusion part (11) and drives the protrusion part (11) to move away from the one-way tooth (7), so that the spring body (29) undergoes elastic deformation. When the flip bracket (2) drives the drive wheel (3) to rotate in the reverse direction, the abutment part (8) separates from the protrusion part (11), and the spring body (29) returns to its free state.

11. The hinge device according to claim 10, characterized in that, The spring body (29) extends toward the driven wheel (4) to form the protrusion (11). The protrusion (11) is provided with an inclined guide surface (48). Along the positive rotation direction of the driving wheel (3), the protrusion height of the inclined guide surface (48) toward the driven wheel (4) gradually increases. The abutment part (8) abuts, slides, or separates from the inclined guide surface (48).

12. The hinge device according to claim 11, characterized in that, When the abutting part (8) separates from the inclined guide surface (48), the locking part (10) has a first length of abutting slippage relative to the abutting part (8) along the axial direction of the drive wheel (3), and the maximum distance between the inclined guide surface (48) and the spring body (29) along the axial direction of the drive wheel (3) is a second length, which is greater than the first length.

13. The hinge device according to claim 10, characterized in that, The latching part (10) is a latching plate formed by bending the spring body (29) toward the driving wheel (3). The free end of the latching plate toward the driving wheel (3) is thickened to form a latching end (30). The latching end (30) is latched or separated from the limiting end (12). The latching plate is inclined relative to both the driven wheel (4) and the spring body (29). Along the positive rotation direction of the driving wheel (3), the end of the latching plate near the spring body (29) is located upstream of the end away from the spring body (29). The bending line of the latching plate and the spring body (29) has an angle with respect to the horizontal plane.

14. The hinge device according to claim 10, characterized in that, The spring body (29) is provided with a spring locking hole (31) and an abutment end (32). The hinge device also includes a spring fastener (33). The spring fastener (33) passes through the spring locking hole (31) and is connected to the fixed seat (1). The abutment end (32) abuts against the fixed seat (1).

15. The hinge device according to any one of claims 1-14, characterized in that, The hinge device is configured as a left hinge device (34) and a right hinge device (35) arranged symmetrically on the left and right sides, respectively. The left hinge device (34) is arranged on the left side of the fixed base (1) and the right hinge device (35) is arranged on the right side of the fixed base (1). The drive wheel (3) of the left hinge device (34) is connected to the left side of the flip bracket (2), and the drive wheel (3) of the right hinge device (35) is connected to the right side of the flip bracket (2). The driven wheel (4) of the left hinge device (34) is rotatably mounted on the driving wheel (3) of the left hinge device (34), and the driven wheel (4) of the right hinge device (35) is rotatably mounted on the driving wheel (3) of the right hinge device (35). The stop spring (5) of the left hinge device (34) is connected to the left side of the fixed seat (1), and the stop spring (5) of the right hinge device (35) is connected to the right side of the fixed seat (1). Rotate the flip bracket (2) and simultaneously drive the drive wheel (3) of the left hinge device (34) and the drive wheel (3) of the right hinge device (35) to rotate in the forward direction. Engage the locking part (10) of the stop spring (5) of the left hinge device (34) with the one-way tooth (7) of the drive wheel (3) of the left hinge device (34), and engage the locking part (10) of the stop spring (5) of the right hinge device (35) with the one-way tooth (7) of the drive wheel (3) of the right hinge device (35) to suspend the flip bracket (2) relative to the fixed seat (1). When the rotating bracket (2) is rotated so that the locking part (10) of the stop spring (5) of the left hinge device (34) disengages from the one-way tooth (7) of the drive wheel (3) of the left hinge device (34) and the locking part (10) of the stop spring (5) of the right hinge device (35) disengages from the one-way tooth (7) of the drive wheel (3) of the right hinge device (35), the rotating bracket (2) is rotated in the opposite direction to reset the rotating bracket (2) relative to the fixed seat (1).

16. An electronic device, characterized in that, The device includes a fixed base (1), a flip bracket (2), and a hinge device as described in any one of claims 1-15. The fixed base (1) includes a connected equipment housing (36) and a chassis ear (37). The chassis ear (37) includes a connected chassis ear housing (38) and a chassis ear bracket (39). The chassis ear bracket (39) is disposed on the equipment housing (36). The drive wheel (3) of the hinge device is connected to the flip bracket (2). The stop spring (5) of the hinge device is connected to the chassis ear housing (38). The driven wheel (4) of the hinge device is rotatably connected to the drive wheel (3).

17. The electronic device according to claim 16, characterized in that, The ear housing (38) is provided with a positioning part (40), the positioning part (40) is provided with a positioning groove (41), the end of the rotating shaft (16) of the drive wheel (3) away from the flip bracket (2) passes through the positioning groove (41) and can rotate relative to the positioning groove (41), the rotating shaft (16) cooperates with the positioning groove (41) to limit the position.

18. The electronic device according to claim 16, characterized in that, The flipping bracket (2) is provided with a support column (42), and the ear shell (38) is provided with a support part (43). The support column (42) and the support part (43) cooperate to limit the movement.

19. The electronic device according to any one of claims 16-18, characterized in that, The chassis ear (37) is configured as a left chassis ear (44) and a right chassis ear (45). The left chassis ear (44) is located on the left side of the equipment housing (36), and the right chassis ear (45) is located on the right side of the equipment housing (36). The left hinge device (34) of the hinge device is connected between the left chassis ear (44) and the left side of the flip bracket (2), and the right hinge device (35) of the hinge device is connected between the right chassis ear (45) and the right side of the flip bracket (2).

20. The electronic device according to claim 19, characterized in that, The electronic device also includes a cover plate (46) which is detachably connected to the device housing (36); When the cover plate (46) is removed from the equipment housing (36), the flip bracket (2) is rotated and the drive wheel (3) of the left hinge device (34) and the drive wheel (3) of the right hinge device (35) are simultaneously driven to rotate in the forward direction, so that the locking part (10) of the left hinge device (34) engages with the one-way tooth (7) of the left hinge device (34) and the locking part (10) of the right hinge device (35) engages with the one-way tooth (7) of the right hinge device (35), so as to suspend the flip bracket (2) relative to the fixed seat (1); When the flip bracket (2) is rotated so that the locking part (10) of the left hinge device (34) disengages from the one-way tooth (7) of the left hinge device (34) and the locking part (10) of the right hinge device (35) disengages from the one-way tooth (7) of the right hinge device (35), the flip bracket (2) is rotated in the opposite direction so that the flip bracket (2) is reset relative to the fixed base (1), and the cover plate (46) can be installed on the equipment housing (36).

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