Handle lock attachment and cabinet
The handle locking device, designed using the lever principle, solves the problem of complex rotating structures and large space occupation of storage nodes, enabling simple and compact rotation of the storage box and meeting the high space utilization requirements of servers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- FULIAN PRESION ELECTRONICS (TIANJIN) CO LTD
- Filing Date
- 2021-07-27
- Publication Date
- 2026-05-29
AI Technical Summary
In existing technologies, the rotating structure of storage nodes within the server chassis is complex and occupies a large amount of space, making it difficult to meet the requirements of high space utilization for servers.
The handle locking device, designed using the lever principle, uses the cooperation of the first and second handles to rotate the storage box relative to the base by a set angle. The distance between the power point and the fulcrum is greater than the distance between the resistance point and the fulcrum, reducing the driving force requirement, and the position is maintained by the limiting component and the limiting post.
The simplified rotating structure of the storage box saves driving force, reduces the external size of the rotating components, and adapts to higher space utilization requirements.
Smart Images
Figure CN115686140B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of storage device technology, and in particular to a handle locking device and a chassis. Background Technology
[0002] With the rapid development of all aspects of society, higher demands are being placed on space utilization. For example, servers require simplicity and compactness, which leads to more stringent requirements for the internal space of servers. A large number of hard drives are stored in storage nodes, which are placed inside the server chassis. When a hard drive needs to be replaced, the storage node needs to be rotated at a certain angle to remove the hard drive. To meet the higher space utilization requirements of servers, the structure used for rotating storage nodes needs to be simple and compact. Summary of the Invention
[0003] In view of this, this application provides a simple and compact handle locking device and chassis.
[0004] In a first aspect, this application provides a handle locking device. The handle locking device includes a base, a storage box, and a rotating assembly. The storage box is rotatably mounted on the base. The rotating assembly includes a first handle and a second handle. The first handle includes a connecting portion, a first extension portion, and a second extension portion. A rotating shaft is provided on the storage box, and the connecting portion is rotatably connected to the rotating shaft. The rotation direction of the connecting portion about the rotating shaft is opposite to the rotation direction of the storage box relative to the base. One end of the first extension portion is disposed on the connecting portion, and the other end extends toward one side of the connecting portion to abut against the base. One end of the second extension portion is disposed on the connecting portion, and the other end extends toward the side of the connecting portion opposite to the first extension portion. The second handle is slidably disposed on the second extension portion and is movable to the outside of the end of the second extension portion opposite to the connecting portion.
[0005] Clearly, in the above design, the handle locking device uses a lever principle to rotate the storage box relative to the base by a set angle. The end of the second handle away from the connecting part is the power point; the end of the first extension away from the connecting part contacts the base, and this contact point is the fulcrum; the connection between the connecting part and the rotating shaft is the resistance point. Because the first and second extensions extend to both sides of the connecting part, the distance between the power point and the fulcrum is greater than the distance between the resistance point and the fulcrum. Sliding the second handle beyond the second extension further increases the distance between the power point and the fulcrum, saving the force required to drive the storage box to rotate. When it is not necessary to drive the storage box to rotate, the second handle can move along the second extension towards the connecting part, reducing the external dimensions of the rotating assembly.
[0006] In one possible design, the rotating assembly also includes a limiting member disposed on the storage box and having a retaining part that can be elastically deformed. The retaining part has a retaining groove, and the first handle has a retaining shaft. When the storage box is not rotating relative to the base, the retaining shaft can be retained in the retaining groove.
[0007] Obviously, in the above design, the locking shaft can be stably locked in the slot without the action of external force. When the storage box does not rotate relative to the base, the rotating component is fixed relative to the base and the storage box.
[0008] In one possible design, the rotating assembly further includes a positioning element, which comprises a body and a positioning portion disposed on the body. The body is disposed on the second handle, and a second extension has two positioning grooves spaced apart. The body is elastically deformable, allowing the positioning portions to slide along the second extension and engage with the two positioning grooves respectively.
[0009] Clearly, in the above design, the positioning part slides into the two spaced positioning slots, fixing the sliding distance of the second handle relative to the first handle. When the storage box is in the two positions before and after rotation, the position of the second handle is stationary relative to the first handle, facilitating the operation of the second handle.
[0010] In one possible design, the second handle is provided with a groove, and the second extension is provided with a protrusion that is slidably disposed within the groove.
[0011] Clearly, in the above design, the second handle is slidably connected to the first handle, but does not detach from the first handle.
[0012] In one possible design, the storage box is provided with a first limiting post, and the pivot of the storage box relative to the base and the first limiting post are respectively located on opposite sides of the pivot. The second extension is provided with a first limiting groove on the side opposite to the first extension. The first limiting post engages with the first limiting groove, which can support the second extension and keep the storage box and the base at a set angle.
[0013] Obviously, in the above design, the first limiting post is engaged with the first limiting groove, so that the storage box is kept at a set angle relative to the base.
[0014] In one possible design, the storage box is provided with a second limiting post, and the pivot of the storage box relative to the base is located on the same side of the pivot. A second limiting groove is provided on the second extension or connecting part. The second limiting post engages with the second limiting groove, which can stop the first handle when the storage box is not rotating relative to the base, thereby fixing the first handle.
[0015] Obviously, in the above design, the second limiting post on the storage box is engaged with the second limiting groove to share the force exerted on the limiting member by the first handle and the second handle.
[0016] In one possible design, the second handle includes a main body, a first sliding part, and a second sliding part. The main body is located on the side of the first handle away from the storage box, and the first sliding part and the second sliding part are respectively disposed on opposite sides of the main body, and both are bent and extended between the first handle and the storage box.
[0017] Obviously, in the above design, when the second handle is rotated, both sides of the second handle along the rotation direction are covered by the first handle, which increases the strength of the second handle and avoids excessive local stress on the protrusion and the groove wall.
[0018] In one possible design, the first handle also includes a roller, which is rotatably disposed at the end of the first extension opposite to the connecting portion.
[0019] Clearly, in the above design, the roller abuts against the base. This causes the first handle to roll on the base, reducing the friction between the first handle and the base, and thus reducing the external force applied to the second handle to drive the storage box to rotate.
[0020] In one possible design, the first extension and the second extension extend in parallel directions, and each makes an obtuse angle with the connecting part.
[0021] Obviously, in the above design, when there is no need to rotate the storage box, the first extension and the second extension are parallel to the bottom wall of the base, which reduces the size of the rotating assembly in the direction perpendicular to the bottom wall of the base.
[0022] Secondly, this application provides a chassis including a hard drive module and a handle locking device. The handle locking device includes a base, a storage compartment, and a rotating assembly. The storage compartment is rotatably mounted on the base. The rotating assembly includes a first handle and a second handle. The first handle includes a connecting portion, a first extension, and a second extension. A rotating shaft is provided on the storage compartment, and the connecting portion is rotatably connected to the rotating shaft. The rotation direction of the connecting portion about the rotating shaft is opposite to the rotation direction of the storage compartment relative to the base. One end of the first extension is disposed on the connecting portion, and the other end extends toward one side of the connecting portion to abut against the base. One end of the second extension is disposed on the connecting portion, and the other end extends toward the side of the connecting portion opposite to the first extension. The second handle is slidably disposed on the second extension and is movable to the outside of the end of the second extension opposite to the connecting portion. The hard drive module is disposed inside the storage compartment.
[0023] Clearly, in the above design, the handle locking device uses a lever principle to rotate the storage box relative to the base by a set angle. The end of the second handle away from the connecting part is the power point; the end of the first extension away from the connecting part contacts the base, and this contact point is the fulcrum; the connection between the connecting part and the rotating shaft is the resistance point. Because the first and second extensions extend to both sides of the connecting part, the distance between the power point and the fulcrum is greater than the distance between the resistance point and the fulcrum. Sliding the second handle beyond the second extension further increases the distance between the power point and the fulcrum, saving the force required to drive the storage box to rotate. When there is no need to drive the storage box to rotate, the second handle can move along the second extension towards the connecting part, reducing the external dimensions of the rotating assembly and meeting the requirements of higher space utilization in the chassis. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of a chassis provided in an embodiment of this application.
[0025] Figure 2 for Figure 1 The diagram shows a partial exploded view of the handle locking device in the chassis when removing or placing the hard drive.
[0026] Figure 3 for Figure 1 The diagram shows the connection between the rotating component and the storage tank in the chassis.
[0027] Figure 4 for Figure 3 An exploded view of the rotating assembly shown.
[0028] Figure 5 for Figure 4 The diagram shows a portion of the handle locking device from another perspective.
[0029] Explanation of main component symbols
[0030] Chassis 200
[0031] Hard disk component 201
[0032] Hard drive 2011
[0033] Hinge 203
[0034] Handle locking device 100
[0035] Base 10
[0036] Storage box 20
[0037] Rotating shaft 21
[0038] First limiting post 23
[0039] Second limiting post 25
[0040] Rotating component 30
[0041] First leader 31
[0042] Connecting part 311
[0043] Second limiting groove 3111
[0044] First extension 313
[0045] Second extension 315
[0046] Protrusion 3151
[0047] 3153 cassette
[0048] Positioning groove 3155
[0049] First limiting groove 3157
[0050] Second-in-command 33
[0051] Slide 3301
[0052] Main body 331
[0053] First sliding part 333
[0054] Second sliding part 335
[0055] Limiting component 35
[0056] Cardholder 351
[0057] Card slot 353
[0058] 36 rollers
[0059] Positioning component 37
[0060] Main body part 371
[0061] Positioning Unit 373
[0062] Fastener 38
[0063] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation
[0064] To further illustrate the technical means and effects adopted by this application to achieve the intended purpose, the following description, in conjunction with the accompanying drawings and embodiments, is provided. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.
[0065] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
[0066] This application provides a handle locking device in several embodiments. The handle locking device includes a base, a storage box, and a rotating assembly. The storage box is rotatably mounted on the base. The rotating assembly includes a first handle and a second handle. The first handle includes a connecting portion, a first extension, and a second extension. A rotating shaft is provided on the storage box, and the connecting portion is rotatably connected to the rotating shaft. The direction of rotation of the connecting portion about the rotating shaft is opposite to the direction of rotation of the storage box relative to the base. One end of the first extension is disposed on the connecting portion, and the other end extends toward one side of the connecting portion to abut against the base. One end of the second extension is disposed on the connecting portion, and the other end extends toward the side of the connecting portion opposite to the first extension. The second handle is slidably disposed on the second extension and is movable to the outside of the end of the second extension opposite to the connecting portion.
[0067] The aforementioned handle locking device uses a lever principle to rotate the storage box relative to the base by a set angle. The end of the second handle away from the connecting part is the power point; the end of the first extension away from the connecting part contacts the base, and this contact point is the fulcrum; the connection between the connecting part and the rotating shaft is the resistance point. Because the first and second extensions extend to both sides of the connecting part, the distance between the power point and the fulcrum is greater than the distance between the resistance point and the fulcrum. Sliding the second handle beyond the second extension further increases the distance between the power point and the fulcrum, saving the force required to drive the storage box to rotate. When it is not necessary to drive the storage box to rotate, the second handle can move along the second extension towards the connecting part, reducing the external dimensions of the rotating assembly.
[0068] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0069] Please also refer to Figure 1 and Figure 2One embodiment of this application provides a chassis 200. The chassis 200 can be a chassis for a server or storage device, etc. The chassis 200 includes a hard disk assembly 201 and a handle locking device 100. The handle locking device 100 includes a base 10, a storage box 20, and a rotating assembly 30. The hard disk assembly 201 includes a plurality of hard disks 2011. The plurality of hard disks 2011 are arranged and stored in the storage box 20. The storage box 20 is rotatably mounted on the base 10. The rotating assembly 30 is used to rotate the storage box 20 relative to the base 10 by a set angle to facilitate the removal and placement of the hard disks 2011 from the storage box 20. The rotating assembly 30 includes a first handle 31 and a second handle 33. The first handle 31 includes a connecting portion 311, a first extension portion 313, and a second extension portion 315. A rotating shaft 21 is provided on the storage box 20, and the connecting portion 311 is rotatably connected to the rotating shaft 21. The direction of rotation of the connecting portion 311 about the rotation axis 21 is opposite to the direction of rotation of the storage box 20 relative to the base 10. One end of the first extension 313 is disposed on the connecting portion 311, and the other end extends to one side of the connecting portion 311 to abut against the base 10. One end of the second extension 315 is disposed on the connecting portion 311, and the other end extends to the side of the connecting portion 311 opposite to the first extension 313. The second handle 33 is slidably disposed on the second extension 315 and can be moved to the outside of the end of the second extension 315 opposite to the connecting portion 311.
[0070] The second handle 33 slides along the second extension 315 to the outer side of the end of the second extension 315 opposite to the connecting part 311. Rotating the second handle 33 causes the first handle 31 to rotate around the rotating shaft 21, and through the lever principle, the storage box 20 rotates relative to the base 10 by the set angle. The end of the second handle 33 opposite to the connecting part 311 is the power point; the end of the first extension 313 opposite to the connecting part 311 contacts the base 10, and this contact point is the fulcrum; the connecting part 311 is rotatably connected to the rotating shaft 21, and the gravity of the storage box 20 and its structure acts on the connecting part 311, making the connection between the connecting part 311 and the rotating shaft 21 a resistance point. Because the first extension 313 and the second extension 315 extend to both sides of the connecting part 311, the distance between the power point and the fulcrum is greater than the distance between the resistance point and the fulcrum. Furthermore, the second handle 33 makes the distance between the power point and the fulcrum greater than the distance between the resistance point and the fulcrum, saving the force required to drive the storage box 20 to rotate. When there is no need to drive the storage box 20 to rotate, the second handle 33 can move along the second extension 315 toward the connecting part 311, reducing the outer size of the rotating assembly 30 and meeting the requirements of higher space utilization of the chassis 200.
[0071] It is understood that in other possible embodiments, the storage box 20 may also store other items besides the hard disk 2011. The handle locking device 100 may also be applied to other devices or equipment that require rotating the storage box 20 to retrieve or place items stored in the storage box 20.
[0072] In one embodiment, the storage box 20 is rotatably connected to the base 10 via a hinge 203, but this is not a limitation. Specifically, one end of the bottom wall of the storage box 20 is rotatably connected to the bottom wall of the storage box 20, and the other end can be driven away from the base 10 by the rotating assembly 30. It is understood that in other embodiments, the storage box 20 may also be connected to the base 10 via other rotatable structures.
[0073] In one embodiment, when the storage box 20 and the base 10 do not rotate relative to each other, the bottom of the storage box 20 abuts against the base 10, and the base 10 supports the storage box 20. It is understood that in other embodiments, the storage box 20 may only contact the base 10 at its rotatable connection point, without contact in other areas. The storage box 20 is rotatably connected to the base 10 and also rotatably connected to the first handle 31, and abuts against the base 10 via the first handle 31, so that the first handle 31 and the base 10 jointly support the storage box 20.
[0074] For clarity in the following description, the position of the storage box 20 when it does not rotate relative to the base 10 is defined as the first position; the position when the storage box 20 rotates relative to the base 10 to the defined angle is defined as the second position.
[0075] Please also refer to Figure 3 , Figure 4 and Figure 5 The rotating assembly 30 also includes a limiting member 35. The limiting member 35 is disposed on the storage box 20. The limiting member 35 is provided with a retaining part 351 that can elastically deform. The retaining part 351 is provided with a retaining groove 353. The first handle 31 is provided with a retaining shaft 3153. When the storage box 20 is not rotating relative to the base 10, that is, when the storage box 20 is in the first position, the retaining shaft 3153 can be retained in the retaining groove 353. The retaining part 351 is generally an arc-shaped structure including an opening. During the process of the retaining shaft 3153 entering the retaining groove 353, the retaining part 351 elastically deforms to enlarge the opening of the retaining groove 353 to allow the retaining part 351 to enter. After the retaining shaft 3153 is fully inserted into the retaining groove 353, the retaining part 351 returns to its original shape, and the opening of the retaining groove 353 becomes smaller to stop the retaining shaft 3153. Without the action of external force, the retaining shaft 3153 can be stably retained in the retaining groove 353.
[0076] It is understood that in other possible implementations, the retaining part 351 on the limiting member 35 can also be other elastically deformable structures, as long as it is provided with a slot 353, the retaining shaft 3153 can be engaged or disengaged by external force.
[0077] When the storage box 20 does not need to be rotated, the retaining shaft 3153 is held in the retaining groove 353, and the rotating assembly 30 is fixed in position relative to the base 10 and the storage box 20. When the storage box 20 needs to be rotated, a force is applied to the retaining shaft 3153, causing the retaining shaft 3153 to disengage from the retaining groove 353, and a force is applied to the second handle 33, causing the second handle 33 to drive the first handle 31 to rotate around the rotating shaft 21. The end of the first extension 313 away from the connecting part 311 moves relative to the base 10, thereby causing the storage box 20 to rotate relative to the base 10 to the second position.
[0078] In one embodiment, the first handle 31 further includes a roller 36. The roller 36 is rotatably disposed at the end of the first extension 313 opposite to the connecting portion 311. The roller 36 abuts against the base 10. This causes the first handle 31 to roll on the base 10, reducing the friction between the first handle 31 and the base 10, and thus reducing the external force applied to the second handle 33 to drive the storage box 20 to rotate. It is understood that in other embodiments, the roller 36 may also be omitted. The side of the first extension 313 opposite to the connecting portion 311 may also slide along the bottom wall of the base 10.
[0079] In one embodiment, the first extension 313 and the second extension 315 extend in parallel directions, and their angles with the connecting portion 311 are obtuse angles. When the storage box 20 does not need to be rotated, the first extension 313 and the second extension 315 are parallel to the bottom wall of the base 10, reducing the size of the rotating assembly 30 in the direction perpendicular to the bottom wall of the base 10. It is understood that in other embodiments, the angle between the first extension 313 and the connecting portion 311 may be different from the angle between the second extension 315 and the connecting portion. This is simply a matter of the first extension 313 and the second extension 315 extending to both sides of the connecting portion 311, increasing the distance between the power point and the fulcrum.
[0080] The second handle 33 is slidably connected to the first handle 31 without detaching from the first handle 31. Specifically, the second handle 33 is provided with a groove 3301, and the second extension 315 is provided with a protrusion 3151. The protrusion 3151 is slidably disposed in the groove 3301 and stops the second handle 33, so that the second handle 33 is slidably connected to the first handle 31.
[0081] To increase the strength of the second handle 33, the second handle 33 covers a portion of the first handle 31. Specifically, the second handle 33 includes a main body 331, a first sliding part 333, and a second sliding part 335. The main body 331 is located on the side of the first handle 31 facing away from the storage box 20. The first sliding part 333 and the second sliding part 335 are respectively disposed on opposite sides of the main body 331, and both are bent and extended between the first handle 31 and the storage box 20. When the second handle 33 is rotated, both sides of the second handle 33 cover the first handle 31 along the rotation direction, increasing the strength of the second handle 33 and avoiding excessive local stress on the protrusion 3151 and the groove wall of the slide 3301.
[0082] The second handle 33 slides a fixed distance relative to the first handle 31. When the storage box 20 is in the first position and the second position, the second handle 33 is stationary relative to the first handle 31, facilitating operation of the second handle 33. Specifically, the rotating assembly 30 also includes a positioning member 37. The positioning member 37 includes a body portion 371 and a positioning portion 373. The positioning portion 373 is mounted on the body portion 371 by a fastener 38. The body portion 371 is mounted on the second handle 33. The second extension portion 315 is provided with two positioning grooves 3155 spaced apart. The body portion 371 can elastically deform, allowing the positioning portion 373 to slide along the second extension portion 315 and engage with the two positioning grooves 3155 respectively.
[0083] Specifically, the positioning member 37 is generally an elastic sheet-like structure, wherein the positioning part 373 is formed by bending a portion of the body part 371, but is not limited thereto. For example, in other embodiments, the positioning part 373 may also be a columnar structure made of soft rubber material and bonded to the body part 371, wherein the body part 371 elastically deforms so that the positioning part 373 can be inserted into the positioning groove 3155.
[0084] To maintain the storage box 20 in the second position, a first limiting post 23 is provided on the storage box 20. The pivot of the storage box 20 relative to the base 10 and the first limiting post 23 are located on opposite sides of the pivot 21. A first limiting groove 3157 is provided on the side of the second extension 315 opposite to the first extension 313. The first limiting post 23 engages with the first limiting groove 3157, supporting the second extension 315 and maintaining the storage box 20 at the set angle with the base 10. This allows the storage box 20 to be held in the second position without external force, facilitating the retrieval and placement of items inside the storage box 20.
[0085] To reduce the force exerted on the limiting member 35 by the first handle 31 and the second handle 33, a second limiting post 25 is provided on the storage box 20 to share this force. The rotation axis of the storage box 20 relative to the base 10 and the second limiting post 25 are located on the same side of the rotation axis 21. A second limiting groove 3111 is provided on the connecting part 311. When the storage box 20 does not rotate relative to the base 10, that is, when the storage box 20 is in the first position, the second limiting post 25 can be engaged with the second limiting groove 3111 to stop and support the first handle 31, thereby fixing the first handle 31. It can be understood that in other embodiments, the second limiting groove 3111 may also be provided on the second extension 315.
[0086] The aforementioned chassis 200 and handle locking device 100 utilize a lever principle to rotate the storage box 20 relative to the base 10 by a set angle. The end of the second handle 33 facing away from the connecting portion 311 is the power point; the end of the first extension 313 facing away from the connecting portion 311 contacts the base 10, and this contact point is the fulcrum; the connection between the connecting portion 311 and the rotating shaft 21 is the resistance point. Because the first extension 313 and the second extension 315 extend to both sides of the connecting portion 311, the distance between the power point and the fulcrum is greater than the distance between the resistance point and the fulcrum. The second handle 33 slides outside the second extension 315, further increasing the distance between the power point and the fulcrum, saving the force required to drive the storage box 20 to rotate. When it is not necessary to drive the storage box 20 to rotate, the second handle 33 can move along the second extension 315 towards the connecting portion 311, reducing the external dimensions of the rotating assembly 30 and meeting the requirements of higher space utilization in the chassis 200.
[0087] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and substance of the technical solutions of this application.
Claims
1. A handle locking device, comprising: Base; The storage box is rotatably mounted on the base; The rotating assembly is characterized in that it comprises: The top leader includes: The connecting part is provided with a rotating shaft on the storage box, and the connecting part is rotatably connected to the rotating shaft. The rotation direction of the connecting part about the rotating shaft is opposite to the rotation direction of the storage box relative to the base. A first extension portion, one end of which is disposed on the connecting portion, and the other end extending toward one side of the connecting portion to abut against the base; and The second extension has one end disposed on the connecting part and the other end extending toward the side of the connecting part away from the first extension; The second handle is slidably disposed on the second extension and can be moved to the outside of the end of the second extension opposite to the connecting portion.
2. The handle locking device as described in claim 1, characterized in that: The rotating assembly also includes a limiting member, which is disposed on the storage box and has a retaining part that can be elastically deformed. The retaining part has a retaining groove, and the first handle has a retaining shaft. When the storage box does not rotate relative to the base, the retaining shaft can be retained in the retaining groove.
3. The handle locking device as described in claim 1, characterized in that: The rotating assembly further includes a positioning element, which includes a body and a positioning part, with the positioning part disposed on the body. The main body is disposed on the second handle, and the second extension is provided with two positioning grooves at intervals; The main body can be elastically deformed, allowing the positioning part to slide along the second extension and be respectively engaged in the two positioning grooves.
4. The handle locking device as described in claim 1, characterized in that: The second handle is provided with a sliding groove, and the second extension is provided with a protrusion, which is slidably disposed in the sliding groove.
5. The handle locking device as described in claim 1, characterized in that: The storage box is provided with a first limiting post, and the rotation axis of the storage box relative to the base and the first limiting post are respectively located on both sides of the rotation axis. The second extension is provided with a first limiting groove on the side opposite to the first extension. The first limiting post engages with the first limiting groove, which supports the second extension and keeps the storage box and the base at a set angle.
6. The handle locking device as described in claim 1, characterized in that: The storage box is provided with a second limiting post, and the rotation axis of the storage box relative to the base is located on the same side of the rotation axis as the second limiting post. The second extension or the connecting part is provided with a second limiting groove. The second limiting post engages with the second limiting groove, which can stop the first handle when the storage box does not rotate relative to the base, thus fixing the first handle.
7. The handle locking device as described in claim 1, characterized in that: The second handle includes a main body, a first sliding part, and a second sliding part. The main body is located on the side of the first handle away from the storage box. The first sliding part and the second sliding part are respectively disposed on opposite sides of the main body and both bend and extend between the first handle and the storage box.
8. The handle locking device as described in claim 1, characterized in that: The first handle also includes a roller, which is rotatably disposed at one end of the first extension away from the connecting portion.
9. The handle locking device as described in claim 1, characterized in that: The first extension and the second extension extend in parallel directions, and each makes an obtuse angle with the connecting portion.
10. A chassis, comprising a hard drive module, characterized in that: It also includes the handle locking device as described in any one of claims 1-9, wherein the hard disk module is disposed within the storage box.