Operating mechanism for hard disk carriers

Abstract

The utility model discloses a kind of operating mechanisms of hard disk bracket, it includes main frame, handle assembly and button assembly.First accommodating groove and second accommodating groove are possessed by main frame.Handle assembly is set in first accommodating groove.Button assembly is set in second accommodating groove.Handle assembly includes operating handle.One end of operating handle is connected with main frame, and the other end of operating handle is provided with a recess.Button assembly includes slider, elastic member and pressing piece.Slider includes two crossbeam parts connected with each other.A recess is formed between the two crossbeam parts, and the inner side edge of the recess forms a first inclined surface, and the recess exposes the first inclined surface.Slider is pushed by elastic member and makes crossbeam part be clamped into recess.Pressing piece includes a protrusion with a second inclined surface.Pressing piece is assembled on slider, and the protrusion is inserted into recess so that the second inclined surface abuts against the first inclined surface.

Description

Technical Field

[0001] This utility model relates to an operating mechanism, and more particularly to an operating mechanism for a hard disk tray. Background Technology

[0002] The operating mechanisms of existing hard drive caddies mostly use handles and buttons located at different pivot positions, with torsion springs providing the spring force for return or release. The pivot structure of the handle is usually equipped with a torsion spring so that the handle automatically releases when unlocked; in contrast, the pivot structure of the button uses a torsion spring so that the button automatically resets after operation.

[0003] However, in existing structures, buttons and handles are usually individual parts, connected together with the torsion spring on the same pivot axis. During actual assembly, all parts must be positioned before a pin is used to secure the torsion spring in the correct position and provide the expected elasticity. This assembly process not only increases assembly difficulty and time but also raises the risk of misalignment or torsion spring dislocation during assembly. Therefore, the existing technology still has room for improvement. Utility Model Content

[0004] This utility model mainly provides an operating mechanism for a hard disk tray to solve the problem that in the prior art, both the button and the handle rely on the elastic force of the torsion spring to operate, which requires them to be assembled together, resulting in difficult assembly, increased labor time, and easy misalignment or torsion spring dislocation.

[0005] One embodiment of this utility model discloses an operating mechanism for a hard drive tray, comprising a main frame, a handle assembly, and a button assembly. The main frame has a first receiving groove and a second receiving groove arranged adjacent to each other. The handle assembly is disposed in the first receiving groove. The button assembly is disposed in the second receiving groove. The handle assembly includes an operating handle. One end of the operating handle is pivotally connected to the main frame, and the other end of the operating handle has a recess. The button assembly includes a slider, an elastic member, and a pressing member. The slider includes two interconnected crossbeams. A notch is formed between the two crossbeams, and the slider forms a first inclined surface on the inner edge of the notch, with the notch exposing the first inclined surface. The elastic member is connected to the slider, and the slider is pushed by the elastic force applied by the elastic member, causing the two crossbeams to engage in the recess of the operating handle. The pressing member includes a protrusion with a second inclined surface. The pressing member is assembled on the slider, and the protrusion is inserted into the notch, causing the second inclined surface to abut against the first inclined surface, thereby creating a sliding engagement.

[0006] Optionally, the slider also includes a guide groove, the guide groove and the notch are respectively disposed on opposite sides of the slider, and the main frame also includes a T-shaped guide rail, the T-shaped guide rail is disposed on the bottom wall of the main frame, and the T-shaped guide rail is used to engage with the guide groove.

[0007] Optionally, the pressing component includes an upper plate and two upright portions, the two upright portions being connected to the two sides of the upper plate respectively, each upright portion having an adjacently arranged snap-fit ​​hole and a third inclined surface; wherein, the side wall of the second receiving groove has two locking protrusions, corresponding to the two snap-fit ​​holes of the pressing component respectively, and each locking protrusion has a fourth inclined surface; wherein, when the button assembly is assembled in the second receiving groove of the main frame, the fourth inclined surfaces of the two locking protrusions abut against the two third inclined surfaces of the pressing component, and slide into the two snap-fit ​​holes respectively along the third inclined surfaces.

[0008] Optionally, two limiting ribs are provided on the inner side of the two upright parts respectively, and the protrusion is located between the two limiting ribs. When the pressing part and the slider are assembled together, the slider is limited between the two limiting ribs.

[0009] Optionally, when the pressing member is pressed and the protrusion moves downward, the second inclined surface slides relative to the first inclined surface, thereby pushing the slider to move away from the handle assembly and compressing the elastic member, and further releasing the crossbeam from the recess to release the handle assembly.

[0010] Optionally, the slider also includes a connecting part, and a positioning hole is provided on the side wall of the second receiving groove. One end of the elastic element is connected to the connecting part, and the other end of the elastic element is engaged in the positioning hole.

[0011] Optionally, the main frame has a first pivot portion in the first receiving groove, the first pivot portion is located on one side of the first receiving groove relative to the second receiving groove, and the first pivot portion has a pivot hole; wherein, one end of the operating handle has a second pivot portion, the second pivot portion includes a locking hole, a positioning groove and a limiting groove, the positioning groove is arranged in a ring and surrounds the locking hole, the limiting groove communicates with the positioning groove, and the extension direction of the limiting groove is arranged along the tangential direction of the positioning groove.

[0012] Optionally, the handle assembly further includes a torsion spring and a pivot member. The torsion spring includes a first extended end and a second extended end. When the handle assembly is assembled in the first receiving groove of the main frame, the torsion spring is disposed in the positioning groove, the first extended end is disposed in the limiting groove, and the second pivot member is disposed in a recessed area next to the first pivot member of the main frame. The second extended end of the torsion spring abuts against the inner side of the recessed area. The pivot member passes through the pivot hole and is inserted into the locking hole so that the operating handle can rotate relative to the main frame with the pivot member as the axis.

[0013] Optionally, the pivot member includes a guide portion and a locking portion. Both the guide portion and the locking portion are cylindrical. The diameter of the guide portion is larger than the diameter of the locking portion. When the pivot member passes through the pivot hole of the first pivot portion and is inserted into the locking hole, the guide portion is inserted and positioned in the pivot hole, and the locking portion is fixed in the locking hole.

[0014] Optionally, the handle assembly further includes a stop member, which is fixed to one end of the operating handle where the second pivot portion is provided, and is located on the same side of the operating handle as the second pivot portion, and one end of the stop member further forms a hook-shaped portion.

[0015] In summary, the operating mechanism of the hard drive tray provided by this utility model involves configuring the handle assembly and the button assembly in different receiving slots, and using the inclined surface cooperation between the slider and the pressing member to generate relative sliding to activate the unlocking action of the handle assembly. Since the button assembly does not rely on a torsion spring for actuation, and it is not necessary to pivotally connect the button assembly, the handle assembly, and their torsion spring to the same axis, the assembly process is simplified, and the risk of misalignment or torsion spring dislocation is reduced, thereby improving overall assembly efficiency and reliability.

[0016] The above-disclosed content is only a preferred and feasible embodiment of the present utility model, and is not intended to limit the claims of the present utility model. Therefore, all equivalent technical changes made based on the content of the present utility model specification and drawings are included in the claims of the present utility model. Attached Figure Description

[0017] Figure 1 This is a schematic diagram showing the operating mechanism of the hard drive tray of this utility model in a locked state.

[0018] Figure 2 This is a schematic diagram showing the operating mechanism of the hard drive tray of this utility model in the released state.

[0019] Figure 3 This is a schematic diagram of the button assembly of this utility model assembled on the main frame.

[0020] Figure 4 This is a schematic diagram of the slider and elastic element of the button assembly of this utility model.

[0021] Figure 5 This is another schematic diagram of the slider and elastic element of the button assembly of this utility model.

[0022] Figure 6 This is a schematic diagram of the pressing component of the button assembly of this utility model.

[0023] Figure 7 This is another schematic diagram of the pressing component of the button assembly of this utility model.

[0024] Figure 8 This is a partial schematic diagram of the main frame of this utility model.

[0025] Figure 9 This is a schematic diagram of the handle assembly of this utility model.

[0026] Figure 10This is a schematic diagram showing that the second pivot part of the handle assembly of this utility model does not have a torsion spring.

[0027] Figure 11 A schematic diagram showing the torsion spring installed at the second pivot point of the handle assembly of this utility model.

[0028] Figure 12 This is a schematic diagram of the pivot connector of this utility model, which is inserted to connect the main frame and the operating handle.

[0029] Figure 13 This is a cross-sectional view of the operating mechanism of the hard drive tray of this utility model in the locked state.

[0030] Figure 14 This is a cross-sectional view of the operating mechanism of the hard drive tray of this utility model in the released state. Detailed Implementation

[0031] The following specific embodiments illustrate the relevant implementation methods disclosed in this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. This utility model can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this utility model. Furthermore, the accompanying drawings of this utility model are for simple illustrative purposes only and are not depictions of actual dimensions, as stated in advance. The following embodiments will further describe the relevant technical content of this utility model in detail, but the disclosed content is not intended to limit the scope of protection of this utility model.

[0032] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various components, these components should not be limited by these terms. These terms are primarily used to distinguish one component from another. Furthermore, the term "or" as used herein should, as appropriate, include any combination of one or more related listed items.

[0033] Example

[0034] See Figures 1 to 3 As shown, this utility model provides an operating mechanism D, which is mounted on a hard disk tray (not shown in the figure). The hard disk tray is a front-mounted extraction area of ​​an industrial computer or server chassis, used to carry and replace hard disk devices.

[0035] The operating mechanism D mainly includes a main frame 1, a handle assembly 2, and a button assembly 3. The main frame 1 has a first receiving groove 101 and a second receiving groove 102 arranged adjacent to each other. The handle assembly 2 is disposed in the first receiving groove 101. The handle assembly 2 mainly includes an operating handle 21. One end of the operating handle 21 is pivotally connected to the main frame 1 so that the operating handle 21 can rotate relative to the main frame 1; the other end of the operating handle 21 is provided with a recess 20. The button assembly 3 is disposed in the second receiving groove 102 and forms a corresponding engagement relationship with the recess 20 provided in the operating handle 21 to control the rotation state of the operating handle 21 relative to the main frame 1.

[0036] See Figures 3 to 5 As shown, the button assembly 3 mainly includes a slider 31, an elastic element 32, and a pressing element 33. The pressing element 33 is assembled on the slider 31, while the elastic element 32 (e.g., a spring) can be connected to the slider 31. This utility model does not limit the connection method between the elastic element 32 and the slider 31. For example, such as... Figure 5 As shown, the slider 31 may have a cylindrical connecting portion 313 for the first end 321 of the elastic member 32 to be fitted onto it, thereby connecting the elastic member 32 to the slider 31; the second end 322 of the elastic member 32 abuts against the side wall 1021 of the main frame 1 (see...). Figure 3 The side wall 1021 is located on one side of the second receiving groove 102.

[0037] As described above, the slider 31 includes two crossbeam portions 311 connected to each other, and a notch 312 is formed between the two crossbeam portions 311. A first inclined surface 312S is formed on the inner edge of the notch 312 of the slider 31, located at the connection point of the two crossbeam portions 311. The notch 312 exposes the first inclined surface 312S of the slider 31, allowing for a sloped sliding engagement with a mating component (such as the second inclined surface 331S of the protrusion 331 mentioned later). Furthermore, the slider 31 also includes a guide groove 314, which is disposed on opposite sides (or upper and lower sides) of the slider 31, respectively, of the notch 312. When the handle assembly 2 and the button assembly 3 are assembled together on the main frame 1, the slider 31, under the elastic force applied by the elastic member 32, causes the two crossbeam portions 311 to engage with the recess 20 of the operating handle 21 (see...). Figure 2 and Figure 3 ).

[0038] See Figures 6 to 8As shown, the pressing member 33 includes a protrusion 331, which has a second inclined surface 331S. When the pressing member 33 is assembled to the slider 31, the protrusion 331 inserts into the recess 312 and the second inclined surface 331S abuts against the exposed first inclined surface 312S. Furthermore, the pressing member 33 structurally includes an upper plate portion 332 and two upright portions 333 respectively connected to the two sides of the upper plate portion 332 and extending downward from both sides of the upper plate portion 332. Each upright portion 333 has adjacently arranged snap-fit ​​holes 3330 and a third inclined surface 333S. Figure 7 and Figure 8 As shown, the second receiving groove 102 has two locking protrusions 12 on its side wall, each locking protrusion 12 having a fourth inclined surface 12S. Furthermore, the main frame 1 also includes a T-shaped guide rail 11, which is disposed on the bottom wall of the main frame 1 and located between the two locking protrusions 12. The two locking protrusions 12 correspond to two snap-fit ​​holes 3330, and the fourth inclined surfaces 12S of the two locking protrusions 12 correspond to the third inclined surfaces 333S of the two upright portions 333.

[0039] During the assembly stage of button assembly 3, slider 31, elastic element 32, and pressing element 33 are pre-assembled into button assembly 3, and then placed together in the second receiving groove 102. Button assembly 3 extends from the first receiving groove 101 along the assembly direction N (see...). Figure 3 The two locking protrusions 12 are pushed into the second receiving groove 102. During the insertion process, the fourth inclined surfaces 12S of the two locking protrusions 12 abut against the third inclined surfaces 333S of the two upright parts 333 and slide relative to each other, so that each locking protrusion 12 is guided into the corresponding snap-fit ​​hole 3330 (see Figure 7 and Figure 8 At the same time, the guide groove 314 of the slider 31 also engages with the T-shaped guide rail 11. This allows the button assembly 3 to be securely fixed within the second receiving groove 102.

[0040] like Figures 3 to 6 As shown, a positioning hole 13 is also provided on the side wall 1021 of the second receiving groove 102. When the button assembly 3 is installed in the second receiving groove 102 along the assembly direction N, the second end 322 of the elastic member 32 is engaged in the positioning hole 13, thereby positioning the elastic member 32 and preventing it from shifting laterally during the subsequent compression stroke. In addition, the pressing member 33 has a limiting rib 334 on the inner side of each upright part 333, and the protrusion 331 is located between the two limiting ribs 334. When the pressing member 33 is assembled to the slider 31, the slider 31 is limited between the two limiting ribs 334.

[0041] See Figure 2 and Figure 3As shown, the main frame 1 has a first pivot portion 14 in the first receiving groove 101, and the first pivot portion 14 has a pivot hole 140. Specifically, the first pivot portion 14 is disposed on the side of the first receiving groove 101 away from the second receiving groove 102, that is, the first pivot portion 14 and the second receiving groove 102 are located on opposite sides of the first receiving groove 101.

[0042] See Figure 9 and Figure 10 As shown, the operating handle 21 is pivotally connected to one end of the main frame 1 and has a second pivot portion 24. The second pivot portion 24 has a locking hole 241, a positioning groove 242, and a limiting groove 243. The positioning groove 242 is arranged in a ring around the locking hole 241. The limiting groove 243 communicates with the positioning groove 242, and the extending direction of the limiting groove 243 is arranged along the tangential direction of the positioning groove 242.

[0043] See also Figures 10 to 12 As shown, the handle assembly 2 includes an operating handle 21, a torsion spring 22, and a pivot member 23. The torsion spring 22 includes a first extended end 221 and a second extended end 222. The torsion spring 22 is disposed in the positioning groove 242, while the first extended end 221 is disposed in the limiting groove 243. Furthermore, during the assembly of the handle assembly 2 and the main frame 1, the second pivot part 24 is first disposed in the recessed area 15 formed next to the second pivot part 24 on the main frame 1; then, the second extended end 222 of the torsion spring 22 abuts against the inner side of the recessed area 15, and the pivot member 23 passes through the through hole 10 of the main frame 1 and the pivot hole 140 of the first pivot part 14, and is further inserted into the locking hole 241 to connect to the second pivot part 24, thereby allowing the operating handle 21 to rotate relative to the main frame 1 about the pivot member 23 as an axis.

[0044] Since the first straightened end 221 is located in the limiting groove 243, the torsion spring 22 is positioned thereby, thus causing the torsion spring 22 to be subjected to compression deformation (see...). Figure 13 This prevents rotational displacement. Furthermore, the second pivot portion 24 also has a limiting wall 244. This limiting wall 244 extends circumferentially along the positioning groove 242 and has a stepped height difference compared to other outer peripheral sections of the second pivot portion 24. The height difference created by this limiting wall 244 limits or stops the second straight end 222 of the torsion spring 22 during its rotational stroke.

[0045] like Figure 3 , Figure 11 and Figure 12As shown, the pivot member 23 includes a guide portion 231 and a locking portion 232. Both the guide portion 231 and the locking portion 232 are cylindrical, with the diameter of the guide portion 231 being larger than the diameter of the locking portion 232. When the pivot member 23 passes through the pivot hole 140 of the first pivot member 14 and is inserted into the locking hole 241, the guide portion 231 is inserted and positioned within the pivot hole 140 to provide pivot guidance and support; that is, the guide portion 231 and the pivot hole 140 are not fixedly connected. On the other hand, the locking portion 232 is fixed in the locking hole 241 (the fixing method is not limited; for example, in one embodiment, the locking portion 232 may form an external thread, and the locking hole 241 may correspondingly form an internal thread, and the two are fixed in the locking hole 241 by thread engagement), thereby completing the axial locking of the pivot member 23 and the second pivot member 24. Since the guide portion 231 does not lock into the pivot hole 140, the operating handle 21 can rotate relative to the main frame 1 about the aforementioned pivot member 23.

[0046] See Figure 13 and Figure 14 As shown, for example, when a user uses the operating mechanism D of this invention to assemble a hard drive tray carrying a hard drive device into a server chassis, they first press the pressing member 33 of the button assembly 3, causing the protrusion 331 to move downwards. This causes the second inclined surface 331S of the protrusion 331 to abut against the first inclined surface 312S of the slider 31, resulting in relative sliding. The protrusion 331 then generates a lateral thrust to push the slider 31 away from the operating handle 21, causing the crossbeam portion 311 of the slider 31 to disengage from the recess 20 of the operating handle 21. Simultaneously, the slider 31, due to the lateral push, compresses the elastic member 32 disposed between the slider 31 and the side wall of the second receiving groove 102, causing the elastic member 32 to undergo compression deformation.

[0047] Once the crossbeam 311 disengages from the recess 20, the operating handle 21 loses the restraint provided by the slider 31, causing the torsion spring 22 to release from its compressed state and generate elastic force, driving the operating handle 21 to rotate about the pivot 23 and eject outward from the first receiving groove 101. It should be further noted that when the operating handle 21 rotates to a specific angle, the restraint portion 211 of the operating handle 21 will abut against the main frame 1 to form a stop, thereby stopping the rotation of the operating handle 21, indicating that the operating handle 21 has been extended to its maximum angle. In this state, the user can hold the operating handle 21 and push the hard drive tray along with the hard drive unit into the server chassis.

[0048] Next, after the hard drive tray is pushed into position, the user presses the operating handle 21 back into the first receiving slot 101. During this pressing process, the operating handle 21 forces the torsion spring 22 to recompress and deform, while the slider 31 returns to its original position due to the relative movement with the operating handle 21, causing the crossbeam 311 to re-engage in the recess 20 of the operating handle 21, thereby locking the operating handle 21 within the first receiving slot 101. In other words, after the operating handle 21 is pressed into the first receiving slot 101 and re-engaged by the slider 31, it is in a stable and fixed state. Similarly, when the user wants to remove the hard drive tray along with the hard drive unit from the server chassis, they first press the pressing member 33 to rotate the operating handle 21 and pop it out of the first receiving slot 101, so that the user can hold the operating handle 21 and pull the hard drive tray out of the server chassis.

[0049] Continue reading Figure 11 As shown, the handle assembly 2 also includes a stop 25. The stop 25 is located on the end of the operating handle 21 that has the second pivot portion 24, meaning that the stop 25 and the second pivot portion 24 are located on the same side of the operating handle 21. One end of the stop 25 is connected to the operating handle 21, and the other end forms a hook-shaped portion 251. The hook-shaped portion 251 is designed to avoid interference with the internal rack of the server chassis (not shown in the figure) when the user rotates the operating handle 21 (whether pushing or removing a hard drive tray into or out of the server chassis).

[0050] Furthermore, once the hard drive tray is installed in the server chassis and the operating handle 21 is pressed into the first receiving slot 101 and secured to the main frame 1, the protruding arm 2511 of the hook-shaped part 251 will act as a barrier due to its contact with the internal carrier (not shown). In other words, before the operating handle 21 is ejected by pressing the pressing member 33, the hook-shaped part 251 will prevent the hard drive tray from being directly pulled out, thereby avoiding unintended detachment.

[0051] Therefore, when the operating handle 21 is pressed in and locked within the first receiving slot 101, the protruding arm 2511 of the hook-shaped part 251 will be blocked by the internal frame of the server chassis, preventing the hard drive tray from being directly pulled out. In other words, the operating handle 21 must be popped out by pressing the pressing member 33 before the obstruction can be released, allowing the hard drive tray to be pulled out. This effectively prevents extraction without unlocking, avoiding the hard drive tray from becoming loose or detached due to misoperation or vibration, thus improving installation stability and usage safety.

[0052] Beneficial effects of the embodiments

[0053] In summary, the operating mechanism D of the hard drive tray provided by this utility model involves configuring the handle assembly 2 and the button assembly 3 in different receiving slots, and using the inclined surface cooperation between the slider 31 and the pressing member 33 to generate relative sliding to initiate the unlocking action of the operating handle 21. Compared with the prior art where the handle and button need to be assembled coaxially, the button assembly 3 and the handle assembly 2 in the operating mechanism D of this utility model do not need to be pivotally connected in the same axis to complete the assembly, thereby simplifying the assembly process and helping to reduce production costs.

Claims

1. An operating mechanism for a hard disk tray, characterized in that, The operating mechanism of the hard drive tray includes: A main frame having a first receiving slot and a second receiving slot arranged adjacent to each other; A handle assembly is disposed in the first receiving groove. The handle assembly includes an operating handle, one end of which is pivotally connected to the main frame, and the other end of which has a recess. A button assembly is disposed in the second receiving slot, the button assembly comprising: A slider includes two crossbeams connected to each other, a notch is formed between the two crossbeams, and the slider forms a first inclined surface at the inner edge of the notch, with the notch exposing the first inclined surface. An elastic element, connected to the slider, pushes the slider under the elastic force applied by the elastic element, causing the two crossbeams to engage in the recess of the operating handle; and A pressing element includes a protrusion having a second inclined surface. The pressing element is assembled on the slider, and the protrusion is inserted into the recess so that the second inclined surface abuts against the first inclined surface to produce an inclined sliding fit.

2. The operating mechanism of the hard disk tray according to claim 1, characterized in that, The slider also includes a guide groove, which and the notch are respectively disposed on opposite sides of the slider. The main frame also includes a T-shaped guide rail, which is disposed on the bottom wall of the main frame and is used to engage with the guide groove.

3. The operating mechanism of the hard disk tray according to claim 2, characterized in that, The pressing component includes an upper plate and two upright parts. The two upright parts are respectively connected to the two sides of the upper plate. Each upright part is provided with an adjacent buckle hole and a third inclined surface. The sidewall of the second receiving groove is provided with two locking protrusions, which correspond to the two buckle holes of the pressing member respectively, and each locking protrusion has a fourth inclined surface; When the button assembly is assembled into the second receiving groove of the main frame, the fourth inclined surface of the two locking protrusions abuts against the two third inclined surfaces of the pressing member, and slides into the two buckle holes along the third inclined surfaces respectively.

4. The operating mechanism of the hard disk tray according to claim 3, characterized in that, The inner sides of the two upright parts are respectively provided with two limiting ribs, and the protrusion is located between the two limiting ribs. When the pressing member and the slider are assembled together, the slider is limited between the two limiting ribs.

5. The operating mechanism of the hard disk tray according to claim 1, characterized in that, When the pressing member is pressed and the protrusion moves downward, the second inclined surface slides relative to the first inclined surface, thereby pushing the slider to move away from the handle assembly and compressing the elastic member, and further releasing the crossbeam from the recess to release the handle assembly.

6. The operating mechanism of the hard disk tray according to claim 1, characterized in that, The slider also includes a connecting part, and a positioning hole is provided on the side wall of the second receiving groove. One end of the elastic element is connected to the connecting part, and the other end of the elastic element is engaged in the positioning hole.

7. The operating mechanism of the hard disk tray according to claim 1, characterized in that, The main frame has a first pivot portion in the first receiving groove. The first pivot portion is located on the side of the first receiving groove relative to the second receiving groove, and the first pivot portion has a pivot hole. One end of the operating handle has a second pivot portion, which includes a locking hole, a positioning groove, and a limiting groove. The positioning groove is arranged in a ring shape and surrounds the locking hole. The limiting groove communicates with the positioning groove, and the extending direction of the limiting groove is arranged along the tangential direction of the positioning groove.

8. The operating mechanism of the hard disk tray according to claim 7, characterized in that, The handle assembly further includes a torsion spring and a pivot member. The torsion spring includes a first extended end and a second extended end. When the handle assembly is assembled into the first receiving groove of the main frame, the torsion spring is disposed in the positioning groove, the first extended end is disposed in the limiting groove, and the second pivot member is disposed in a recessed area next to the first pivot member of the main frame. The second extended end of the torsion spring abuts against the inner side of the recessed area. The pivot member passes through the pivot hole and is inserted into the locking hole, so that the operating handle can rotate relative to the main frame about the pivot member as an axis.

9. The operating mechanism of the hard disk tray according to claim 8, characterized in that, The pivot member includes a guide portion and a locking portion. Both the guide portion and the locking portion are cylindrical. The diameter of the guide portion is larger than the diameter of the locking portion. When the pivot member passes through the pivot hole of the first pivot portion and is inserted into the locking hole, the guide portion is inserted and positioned in the pivot hole, and the locking portion is fixed in the locking hole.

10. The operating mechanism of the hard disk tray according to claim 7, characterized in that, The handle assembly further includes a stop member, which is fixed to one end of the operating handle where the second pivot portion is located, and is located on the same side of the operating handle as the second pivot portion, and one end of the stop member further forms a hook-shaped portion.

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