A server cabinet and a lifting device

Abstract

The utility model is suitable for server cabinet field provides an aid and server cabinet of pulling device, including installation base, handle and card mouth, card mouth has first end and second end, first end is provided with the card mouth that cooperates with the buckle position of rack, card mouth is connected in installation base through first rotation axis, handle is connected in installation base through second rotation axis, one of second end and handle is connected with third rotation axis, the other is equipped with sliding structure, third rotation axis is connected in sliding structure, handle is configured as driven rotating around second rotation axis by external force, simultaneously third rotation axis slides through sliding structure and drives card mouth to rotate, make the card mouth switch between locking state and unlocking state, in locking state, the card mouth is connected in the buckle position of rack, in unlocking state, the card mouth is separated from the buckle position of rack. The aid and server cabinet of pulling device provided by the utility model are safe and reliable, do not need other tools cooperation when using, and the operation is time-saving and labor-saving, simple and convenient.

Description

Technical Field

[0001] This utility model belongs to the field of server racks, and in particular relates to a pull-out device and a server rack. Background Technology

[0002] With the increasing application of modern big data, servers, switches, and other functional modules contain more and more heat-generating components with ever-increasing power. This necessitates the use of liquid cooling technology to effectively dissipate the heat generated by these components. However, the significant rebound force of liquid-cooled connectors makes the installation of functional modules more difficult, and existing pull-out aids are insufficient to meet current usage requirements. Against this backdrop, server and switch manufacturers are demanding new requirements for pull-out aids: effortless, reliable, and convenient operation. Utility Model Content

[0003] This utility model aims to solve at least one of the above-mentioned technical problems by providing an auxiliary unloading device and server rack, which is safe and reliable, requires no other tools for use, and is time-saving, labor-saving, simple and convenient to operate.

[0004] The technical solution of this utility model is: a pull-out aid device, including a mounting base for connecting to a functional module, a handle, and a latch. The latch has a first end and a second end, the first end being provided with a latching slot that can engage with a snap-fit ​​position of the frame. The latch is rotatably connected to the mounting base via a first rotating shaft. The handle is rotatably connected to the mounting base via a second rotating shaft. One of the second end and the handle is connected to a third rotating shaft, the other being provided with a sliding structure. The third rotating shaft is rotatably connected to the sliding structure. The handle is configured to be driven by an external force to rotate around the second rotating shaft. During the rotation of the handle around the second rotating shaft, the third rotating shaft slides through the sliding structure and drives the latch to rotate around the first rotating shaft, causing the latch to switch between a locked state and an unlocked state. In the locked state, the latch is engaged with the latch position of the frame; in the unlocked state, the latch is disengaged from the latch position of the frame.

[0005] Optionally, the sliding structure includes a groove disposed on the handle or the second end, and the third rotating shaft may be disposed within the groove; or, The sliding structure includes a sliding sleeve, which is slidably fitted onto the handle or the second end, and the third rotating shaft is rotatably connected to the sliding sleeve; or... The sliding structure includes a slide rail and a slider. The slide rail is located on the handle or the second end, the slider is slidably connected to the slide rail, and the third rotating shaft is rotatably connected to the slider.

[0006] Optionally, it also includes a locking member disposed on the mounting base, the locking member being used to restrict the rotation of the handle in order to maintain the bayonet in the locked state.

[0007] Optionally, the locking member is rotatably connected to the mounting base via a fourth rotating shaft. The locking member is provided with a locking groove, and the handle is provided with a locking tongue that engages with the locking groove. The pull-out device also includes an elastic member installed on the mounting base. The elastic member acts on the locking member so that the locking groove and the locking tongue remain engaged.

[0008] Optionally, it also includes a release component for actuating the locking member to rotate so that the locking groove disengages from the bolt.

[0009] Optionally, it also includes an elastic return member installed between the latch and the mounting base, the elastic return member being configured to apply a restoring force to the latch when the locking groove disengages from the locking tongue, thereby driving the latch to switch from the locked state to the unlocked state.

[0010] Optionally, the release component includes a pressing member, the handle is provided with a through channel, the pressing member passes through the through channel, and the pressing member is driven by an external force to move along the through channel toward the locking member, thereby pushing the locking member to rotate.

[0011] Optionally, it also includes a safety lock assembly disposed on the mounting base, the safety lock assembly being switchable between a first state and a second state, wherein, In the first state, the safety lock assembly acts on the pressing member to restrict its sliding toward the locking member; In the second state, the safety lock assembly releases the constraint on the pressing member, allowing the pressing member to slide toward the locking member.

[0012] Optionally, the safety lock assembly includes an operating member rotatably connected to the mounting base via a fifth rotation axis. The operating member has opposing third and fourth ends. The pressing member is provided with a limiting portion, wherein the third end is provided with a limiting groove opening towards the limiting portion. The operating member can rotate relative to the mounting base in a first position and a second position. In the first position, the limiting groove is engaged with the limiting part to restrict the sliding of the pressing member; In the second position, the limiting groove is completely separated from the limiting part, thereby allowing the pressing member to slide freely.

[0013] Optionally, in the second position, the fourth end is located on the movement path of the latch. During the process of the latch rotating around the first rotation axis, causing the latch to switch from the locked state to the unlocked state, the fourth end is pushed by the latch to rotate the operating member from the second position back to the first position.

[0014] This utility model also provides a server rack, including a rack and pluggable functional modules connected to the rack. The rack is provided with an interface for inserting the functional modules. Each of the pluggable interfaces has a latching position on its opposite sides. Each of the functional modules has the aforementioned pull-out aid on its opposite sides.

[0015] This utility model provides a pull-out aid device and server rack. In this pull-out aid device, the rotation centers of the handle and the latch are designed to be set separately. Combined with the cooperation of the mounting base, handle, latch, first rotating shaft, second rotating shaft, and third rotating shaft, a secondary lever structure is formed. Specifically, the handle, second rotating shaft, and third rotating shaft form a primary lever, with the second rotating shaft serving as the fulcrum, the third rotating shaft as the resistance point, and the point where external force is applied to the handle as the force application point. The latch, the point of contact between the latch and the latching position, the first rotating shaft, and the third rotating shaft form a secondary lever, with the point of contact between the latch and the latching position serving as the fulcrum, the first rotating shaft as the resistance point, and the third rotating shaft as the force application point. Thus, the force input to the handle is amplified by the primary lever and transmitted to the secondary lever through the third rotating shaft, achieving a secondary force-saving effect. This makes the final force acting on the latch disengaging from / engaging with the latch much greater than the direct operating force. This means that users only need to apply a small force to the handle, which, after being amplified by a secondary lever, can overcome the force acting on the latch and drive the latch to switch between locked and unlocked states. The operation is simple, effortless, convenient, quick, reliable, and highly practical. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an assisted pulling device in a locked state according to an embodiment of the present utility model; Figure 2 This utility model provides a schematic diagram of the structure of a pull-out aid device in the unlocked state; Figure 3 yes Figure 1 A schematic diagram of the structure after the installation base is concealed in the middle; Figure 4 yes Figure 1 A structural diagram from another perspective after the hidden mounting base is shown, in which the operating component is located in the first position; Figure 5 yes Figure 4 Enlarged view of point A in the middle; Figure 6 yes Figure 1 The rear view shows the hidden mounting base, with the operating component located in the second position; Figure 7 yes Figure 6 Enlarged view of point B in the middle; Figure 8 yes Figure 2 A schematic diagram of the structure after the installation base is concealed in the middle; Figure 9 yes Figure 2 A structural schematic diagram from another perspective after the installation base is hidden in the middle; Figure 10 This is a schematic diagram of the handle and pressing mechanism; Figure 11 This is a schematic diagram of the handle's structure; Figure 12 This is a schematic diagram of the jaw's structure; Figure 13 This is a structural schematic diagram of the pressing component; Figure 14 This is a structural schematic diagram of the pressing component from a first-person perspective; Figure 15 This is a structural schematic diagram of the pressing component from a second perspective; Figure 16 This is a structural diagram of the operating component; Figure 17 This is a schematic diagram of the mounting base.

[0018] Among them, 1-mounting base, 101-base, 102-support plate, 103-hole, 104-second support arm mounting position, 2-handle, 21-locking tongue, 22-through channel, 23-platform, 24-first mounting hole, 25-disengagement part, 3-jaw, 31-jaw, 32-arc groove, 33-first support arm mounting position, 4-first rotating shaft, 5-second rotating shaft, 6-third rotating shaft, 7-slide groove, 8-torsion spring, 81-spring body, 83-support arm, 9-locking component. Locking groove-91, 10-Fourth rotating shaft, 11-First spring, 12-Pressing member, 121-Limiting part, 122-First side, 123-Pressing cap, 124-Third side, 125-Protrusion, 1251-Second mounting hole, 126-Anti-detachment part, 13-Operating member, 132-Third end, 132-Fourth end, 133-Limiting groove, 1331-Vertical connecting part, 1332-Horizontal connecting part, 134-Second side, 14-Fifth rotating shaft, 15-Second spring. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] It should be noted that the terms "set" and "connect" should be interpreted broadly. For example, it can refer to direct setting, installation, or connection, or indirect setting or connection through central components or structures. Furthermore, in embodiments of this utility model, the orientations or positional relationships indicated by terms such as "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" are based on the orientations or positional relationships shown in the accompanying drawings or the conventional placement or usage state. These are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the structure, feature, device, or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this utility model. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0021] The various specific technical features and embodiments described in the detailed embodiments can be combined in any suitable manner without contradiction. For example, different implementation methods can be formed by combining different specific technical features / embodiments. In order to avoid unnecessary repetition, the various possible combinations of the various specific technical features / embodiments in this utility model will not be described separately.

[0022] like Figures 1 to 11 As shown in the figure, the present invention provides a pull-out aid device, including a mounting base 1, a handle 2 and a latch 3. The mounting base 1 is used to connect with a functional module, that is, the pull-out aid device is installed on the functional module through the mounting base 1. The latch 3 has a first end and a second end opposite to each other. The first end is provided with a latch 31, which is used to cooperate with the latch position of the frame (not shown in the figure). The latch 31 can be latched onto the latch position of the frame to fix the functional module to the frame. The latch 3 is rotatably connected to the mounting base 1 via a first rotating shaft 4, and the latch 3 can rotate using the first rotating shaft 4 as its rotation center. The handle 2 is rotatably connected to the mounting base 1 via a second rotating shaft 5, and the handle 2 can rotate using the second rotating shaft 5 as its rotation center. One of the second end of the latch 3 and the handle 2 is connected to a third rotating shaft 6, and the other is provided with a sliding structure. For example, the second end of the latch 3 is connected to the third rotating shaft 6, and the handle 2 is provided with a sliding structure; or, the second end of the latch 3 is provided with a sliding structure, and the handle 2 is connected to the third rotating shaft 6, and the third rotating shaft 6 is connected to the sliding structure. The handle 2 is configured to be driven by an external force to rotate around the second rotating shaft 5. During the rotation of the handle 2 around the second rotating shaft 5, the third rotating shaft 6 slides relative to the handle 2 through the sliding structure, and drives the latch 3 to rotate around the first rotating shaft 4. The rotation of the latch 3 allows the latch 31 to switch between a locked state and an unlocked state. In the locked state, the latch 31 is engaged with the latch position on the rack; in the unlocked state, the latch 31 is disengaged from the latch position on the rack.

[0023] By designing the rotation centers of the handle 2 and the latch 3 to be set separately, and combining the cooperation between the mounting base 1, handle 2, latch 3, first rotating shaft 4, second rotating shaft 5 and third rotating shaft 6, a secondary lever structure is formed. That is, the handle 2, second rotating shaft 5 and third rotating shaft 6 form a primary lever, with the second rotating shaft 5 as the fulcrum of the primary lever, the third rotating shaft 6 as the resistance point of the primary lever, and the position where external force is applied to the handle 2 as the force application point of the primary lever; the latch 3, latch 31, first rotating shaft 4 and third rotating shaft 6 form a secondary lever, with the latch 31 as the fulcrum of the secondary lever, the first rotating shaft 4 as the resistance point of the secondary lever, and the third rotating shaft 6 as the force application point of the secondary lever.

[0024] When unlocking: the handle 2 is driven by the first external force to rotate around the second rotating axis 5, and the third rotating axis 6 can slide along the first direction through the sliding structure, pushing the latch 3 to rotate around the first rotating axis 4, and causing the latch 31 to disengage from the latch position of the frame; When locked: the handle 2 is driven by a second external force to rotate around the second rotating axis 5, and the third rotating axis 6 can slide along the second direction through a sliding structure, pushing the latch 3 to rotate around the first rotating axis 4, so that the latch 31 engages with the buckle position of the frame. The second external force is opposite in direction to the first external force. For example, if the handle 2 rotates counterclockwise around the second rotating axis 5 under the action of the first external force, then the handle 2 will rotate clockwise around the second rotating axis 5 under the action of the second external force. The first direction and the second direction are opposite.

[0025] During the switching between locked and unlocked states, the application and resistance points of the first and second levers are interchanged, while the fulcrum remains unchanged.

[0026] The force input to handle 2 is amplified by the first-stage lever and then transmitted to the second-stage lever via the third rotating shaft 6, achieving a secondary force-saving effect. This makes the final force acting on the latch 31 in the action of disengaging from / engaging with the latch much greater than the direct operating force. In other words, the user only needs to apply a small force to handle 2, which, after being amplified by the second-stage lever, can overcome the force acting on the latch and drive the latch 31 to switch between the locked and unlocked states. The operation is simple, effortless, convenient, quick, reliable, and highly practical.

[0027] Although the above description explains the process of switching between the locked and unlocked states of the latch 31 in conjunction with the latch position of the frame, even if the pull-out device of this utility model is not installed on the frame, the latch 31 can still switch between the locked and unlocked positions in a structural sense when the drive handle 2 is rotated.

[0028] In some alternative embodiments, such as Figure 17 As shown, the mounting base 1 may include a base 101 and two support plates 102. The two support plates 102 are spaced apart from the base 101, and a space is formed between the two support plates 102 for mounting components such as the handle 2, the latch 3, the first rotating shaft 4, the second rotating shaft 5, and the third rotating shaft 6. This prevents the components from being exposed and avoids external factors affecting the normal operation of the lifting device.

[0029] In some alternative embodiments, such as Figure 1 , 3 As shown in Figures 9 and 10, the sliding structure may include a groove 7, which may be formed on the handle 2. A third rotating shaft 6 is connected to the second end of the latch 3. The third rotating shaft may be disposed within the groove 7. When the handle 2 rotates around the first rotating shaft 4, the third rotating shaft 6 slides within the groove 7 and can rotate relative to the handle 2. The third rotating shaft 6 can rotate relative to the handle 2 around its own axis to compensate for the spatial angular deviation between the latch 3 and the handle 2, while simultaneously converting sliding friction into rolling friction, reducing wear. Specifically, the groove 7 may be a straight groove extending along the length of the handle 2.

[0030] In some alternative embodiments, a groove may be formed on the second end of the jaw, and a third rotating shaft is connected to the handle. The third rotating shaft may be disposed in the groove 7. When the handle 2 rotates around the first rotating shaft 4, the third rotating shaft slides in the groove.

[0031] In some alternative embodiments, the groove 7 may be an inclined groove having an angle with the length direction of the handle 2.

[0032] In some alternative embodiments, the groove 7 may be an arc-shaped groove.

[0033] In some optional embodiments, the sliding structure includes a sliding sleeve (not shown in the figure), which is slidably fitted onto the handle 2. The second end of the latch 3 is connected to a third rotating shaft, which is rotatably connected to the sliding sleeve. When the handle 2 rotates around the first rotating shaft 4, the third rotating shaft slides relative to the handle through the sliding sleeve.

[0034] In some optional embodiments, the sliding structure includes a sliding sleeve (not shown in the figure), which can be slidably fitted onto the second end of the latch. A third rotating shaft is connected to the handle, and the third rotating shaft is rotatably connected to the sliding sleeve. When the handle 2 rotates around the first rotating shaft 4, the third rotating shaft slides relative to the second end through the sliding sleeve.

[0035] In some optional embodiments, the sliding structure includes a slide rail and a slider (not shown in the figure). The slide rail may be provided on the handle 2 and extend along the length direction of the handle 2. The slider is slidably connected to the slide rail. The second end of the latch 3 is connected to a third rotating shaft. The third rotating shaft is rotatably connected to the slider. When the handle 2 rotates around the first rotating shaft 4, the third rotating shaft slides relative to the handle through the slide rail and the slider.

[0036] In some optional embodiments, the sliding structure includes a slide rail and a slider (not shown in the figure). The slide rail may be located at the second end of the latch 3 and along the line connecting the first end and the second end. The slider is slidably connected to the slide rail. The handle 3 is connected to a third rotating shaft, which is rotatably connected to the slider. When the handle 2 rotates around the first rotating shaft 4, the third rotating shaft slides relative to the second end (latch) through the slide rail and the slider.

[0037] In some alternative embodiments, such as Figure 3 , 6As shown in Figures 8 and 9, the pull-out aid may also include a locking element 9 disposed on the mounting base 1. The locking element 9 is used to restrict the rotation of the handle 2 to maintain the bayonet 31 in a locked state. By setting the locking element 9, on the one hand, a rigid mechanical constraint is formed with the handle 2, which can resist vibration and impact and external misoperation force, ensuring that the bayonet 31 has zero probability of accidentally disengaging from the frame in the locked state, thus solving the risk of functional modules falling off due to vibration / collision (i.e., preventing accidental unlocking); on the other hand, the user must first release the locking element 9 before operating the handle 2, forming a two-level operation logic of "unlocking the locking element 9 → driving the handle 2 to rotate", eliminating the possibility of single-step misoperation from the human level (i.e., preventing accidental triggering).

[0038] In some alternative embodiments, the locking element 9 can be replaced with a locking pin. The support plate 102 of the mounting base 1 is provided with a first locking pin hole, and the handle 2 is provided with a second locking pin hole. When the latch 31 is kept in the locked state, the first locking pin hole and the second locking pin hole are aligned. After the locking pin is inserted into the first locking pin hole and the second locking pin hole, the rotation of the handle 2 can be restricted.

[0039] In some alternative embodiments, such as Figure 3 and 9 As shown, the locking element 9 can be rotatably connected to the mounting base 1 via the fourth rotating shaft 10. The locking element 9 may be provided with a locking groove 91, and the handle 2 may be provided with a locking tongue 21 that engages with the locking groove 91. The engagement of the locking groove 91 and the locking tongue 21 restricts the rotation of the handle 2. When it is necessary to release the locking element 9 from restricting the handle 2, the locking element 9 can be pushed around the fourth rotating shaft 10, so that the locking groove 91 and the locking tongue 21 separate. Moreover, the locking element 9 and the mounting base 1 form a rotating pair, and the movement of the locking element 9 is not easily jammed, resulting in a good operating experience. The pull-out device may also include an elastic element installed on the mounting base 1. The elastic element acts on the locking element 9 to keep the locking groove 91 and the locking tongue 21 in an engaged state. The elastic element resists vibration impact and external misoperation force, avoiding the risk of the locking tongue 21 disengaging from the locking groove 91 due to vibration / collision or other accidents. At the same time, when the locking groove 91 and the locking tongue 21 separate and the external force is unloaded, the locking element 9 can automatically reset under the action of the elastic element.

[0040] Specifically, such as Figure 3 and 9 As shown, the locking element 9 can be located below the handle 2, and the fourth rotating shaft 10 can be mounted on the support plate 102 of the mounting base 1. The opening of the locking groove 91 faces the handle 2, and the locking tongue 21 protrudes towards the locking groove 91. This layout makes full use of the space between the two support plates 102 of the mounting base 1, ensuring a compact structure for the pull-out device. Specifically, when the handle 2 is subjected to external force along... Figure 9When the handle 2 is rotated in the direction indicated by the middle arrow, the latch 3 rotates, causing the latch 31 to switch from the unlocked state to the locked state. During this process, the locking tongue 21 gradually approaches the locking member 9 as the handle 2 rotates, and pushes the locking member 9 to rotate around the fourth rotation axis 10 in a direction away from the opening of the locking groove 91. At this time, the elastic member undergoes elastic deformation. When the latch 31 switches to the locked state, the locking tongue 21 just rotates to the position opposite to the locking groove 91 (i.e., as shown in the image). Figure 3 (As shown in the position of the locking tongue 21), the locking tongue 21 is no longer in contact with the locking member 9 (i.e., no external force is applied to the locking member 9). At this time, the elastic member releases its elastic force, causing the locking member 9 to rotate toward the handle 2, so that the locking tongue 21 re-engages with the locking groove 91. The locking member 9 and the handle 2 form a rigid mechanical constraint again to restrict the rotation of the handle 2.

[0041] In some optional embodiments, the mounting base 1 may be provided with an elastic mounting position, which is spaced apart from the locking member 9 and located on the side of the locking member 9 away from the locking groove 91. The elastic member may be a first spring 11, with its two ends abutting against the elastic mounting position and the locking member 9, respectively.

[0042] Specifically, such as Figure 16 As shown, an elastic mounting position is provided on the base 101 of the mounting base 1. The locking member 9 is spaced apart from the base 101, and the first spring 11 is located between the base 101 and the locking member 9. The elastic mounting position is a hole 103 formed on the base 101. One end of the first spring 11 is installed in this hole 103. Correspondingly, the locking member 9 may also have a hole 103 on the side opposite to the locking groove 91, and the other end of the first spring 11 is installed in this hole 103.

[0043] In practical applications, the elastic element can also be a torsion spring 8, a tension spring, etc. Furthermore, the elastic element can be replaced with a gas spring, a magnetic reset structure, etc. That is, as long as the locking groove 91 and the locking tongue 21 are kept in a locked state, and the rotation of the locking element 9 around the fourth rotation axis 10 is not affected so that the locking groove 91 and the locking tongue 21 can be separated.

[0044] In some optional embodiments, the pull-out aid may further include a release component for pushing the locking member 9 to rotate, thereby disengaging the locking groove 91 from the latch 21. The handle 2 can then rotate around the second rotation axis 5 under external force, causing the latch 31 to disengage from the latch position and switch from the locked state to the unlocked state. By integrating the release component into the pull-out aid, it facilitates user operation of rotating the locking member 9.

[0045] In some alternative embodiments, such as Figure 1 , 2As shown in 3, 4, 6, 8, 9, 10 and 11, the release component may include a pressing member 12, and the handle 2 may be provided with a through channel 22. The pressing member 12 passes through the through channel 22, and the pressing member 12 can be driven by external force to move along the through channel 22 toward the locking member 9 to push the locking member 9 to rotate. By providing the through channel 22 to guide the movement of the pressing member 12, it is ensured that the pressing member 12 can accurately push the locking member 9 to rotate.

[0046] Optionally, such as Figure 9 As shown, when the contact point between the pressing member 12 and the locking member 9 is located at the end of the locking member 9 away from the fourth rotating shaft 10, the locking groove 91 is located between the fourth rotating shaft 10 and the contact point between the pressing member 12 and the locking member 9, and is configured such that the distance between the locking groove 91 and the fourth rotating shaft 10 is less than the distance between the locking groove 91 and the contact point between the pressing member 12 and the locking member 9. Thus, the locking member 9, the fourth rotating shaft 10, the contact point between the locking groove 91 and the latch 21, and the contact point between the pressing member 12 and the locking member 9 form a lever structure. The fourth rotating shaft 10 acts as the fulcrum, the contact point between the locking groove 91 and the latch 21 acts as the resistance point, and the contact point between the pressing member 12 and the locking member 9 acts as the force application point. Only a small force is needed on the pressing member 12 to push the locking member 9 to rotate, causing the locking groove 91 to disengage from the latch 21, making operation effortless.

[0047] Specifically, such as Figure 13-15 As shown, the release component includes a pressing cap 123, which serves as a component for receiving external force. It is connected to one end of the pressing member 12, while the other end of the pressing member 12 passes through the through channel 22. The cross-sectional dimension of the pressing cap 123 is larger than that of the pressing member 12, which allows the user to accurately press the release component and push the pressing member 12 to move. At the same time, this design can also prevent the release component from being completely pushed into the through channel 22.

[0048] In some optional embodiments, the pull-out device further includes an elastic return member installed between the latch 3 and the mounting base 1. The elastic return member is configured to release a spring force onto the latch 3 when the locking groove 91 disengages from the latch tongue 21, pushing the latch 3 to rotate and switching the latch 31 from a locked state to an unlocked state. By providing the elastic return member, its function is equivalent to releasing a spring force onto the latch 3 at the instant the locking groove 91 disengages from the latch tongue 21. This spring force is large enough to switch the latch 31 from a locked state to an unlocked state. Alternatively, the user only needs to apply a small auxiliary rotational force to the handle, combined with the spring force released by the elastic return member, to drive the latch from a locked state to an unlocked state, improving operational efficiency and reliability. Specifically, when the latch 31 is in the locked state, the elastic return member is in a loaded state; when the latch 31 is in the unlocked state, the elastic return member is in a free state.

[0049] In some alternative embodiments, such as Figure 4 , 6 As shown in Figure 12, the elastic restoring element can be a torsion spring 8, including a spring body 81 and support arms 83 disposed at both ends of the spring body. The spring body 81 is sleeved on the first rotating shaft 4, and the two support arms 83 abut against the latch 3 and the mounting base 1, respectively. When the latch 31 is in the locked state, the torsion spring 8 is in a loaded state, generating torque (rotational force) through elastic deformation. When the latch 31 is in the unlocked state, the torsion spring 8 is in a free state and has no elastic deformation.

[0050] Specifically, such as Figure 15 and 16 As shown, the latch 3 may be provided with a first support arm mounting position 33, and the support plate 102 adjacent to the first support arm mounting position 33 is provided with a second support arm mounting position 104. The two support arms 83 of the torsion spring 8 respectively abut against the first support arm mounting position 33 and the second support arm mounting position 104. The first support arm mounting position 33 is a mounting groove formed on the latch 3, and the second support arm mounting position 104 is a boss formed on the support plate 102 and extending toward the mounting groove.

[0051] In some optional embodiments, the elastic recovery element can also be a compression spring, a tension spring, a shape memory alloy spring, a silicone elastomer, etc. The compression spring can be vertically installed between the latch 3 and the base 101; the tension spring requires a mounting post to be provided on the latch 3, and the support plate 102 adjacent to the mounting post is also provided with a mounting post. The two mounting posts are distributed at intervals in the vertical direction, and the fixing hooks at both ends of the tension spring are hooked onto the two mounting posts respectively.

[0052] In practical applications, the elastic return element can also be replaced by a gas spring, a magnetic reset structure, etc. When a magnetic reset structure is used, magnets of the same pole can be embedded in the jaw 3 and the base respectively, and the jaw 3 can be driven to rotate by repulsion.

[0053] In some alternative embodiments, such as Figure 4 , 6 As shown in Figure 12, the latch 3 may be provided with an arc-shaped groove 32, the center of which coincides with the first rotation axis 4. A second rotation axis 5 can extend into the arc-shaped groove 32. When the latch 3 rotates, the second rotation axis 5 can slide relative to the latch 3 within the arc-shaped groove 32. Through the cooperation of the arc-shaped groove 32 and the second rotation axis 5, the rotation angle of the latch 3 can be limited; that is, the rotation range of the latch 3 is affected by the central angle of the arc-shaped groove 32.

[0054] In some optional embodiments, the pull-out aid may further include a safety lock assembly disposed on the mounting base 1, the safety lock assembly being switchable between a first state and a second state, wherein... In the first state, the safety lock assembly acts on the pressing member 12 to restrict its sliding toward the locking member 9; In the second state, the safety lock assembly releases the constraint on the pressing member 12, allowing the pressing member 12 to slide toward the locking member 9.

[0055] By setting up a safety lock component, combined with the aforementioned locking element 9, a dual anti-accidental operation is formed. The user must first switch the safety lock component to the second state before operating the pressing element 12 to unlock the locking element 9, and finally drive the handle 2 to rotate, thereby ensuring the safe operation of this pull-out device.

[0056] In some alternative embodiments, the safety lock assembly may include a pin, the support plate 102 of the mounting base 1 is provided with a third locking pin hole, and the pressing member 12 is provided with a fourth locking pin hole. In a first state, the third locking pin hole and the fourth locking pin hole are aligned and the pin is inserted into the third locking pin hole and the fourth locking pin hole. In a second state, the pin is pulled out from the fourth locking pin hole, or the pin is completely pulled out from the third locking pin hole and the fourth locking pin hole.

[0057] In some alternative embodiments, such as Figure 1 , 3 As shown in 1, 4, 6, and 16, the safety lock assembly may include an operating member 13, which is rotatably connected to the mounting base 1 via a fifth rotating shaft 14. For example, the fifth rotating shaft 14 is mounted on a support plate 102. The operating member 13 has opposing third ends 131 and fourth ends 132. The pressing member 12 is provided with a limiting portion 121, wherein the third end 131 is provided with a limiting groove 133 with an opening facing the limiting portion 121. The operating member 13 can rotate relative to the mounting base 1 to switch between a first position and a second position. like Figure 4 and 5 As shown, in the first position, the limiting groove 133 is engaged with the limiting part 121, thereby restricting the pressing member 12 from moving toward the locking member 9; like Figure 6 and 7 As shown, in the second position, the limiting groove 133 is completely separated from the limiting part 121, thereby allowing the pressing member 12 to move freely toward the locking member 9.

[0058] The operating component 13 uses rotation to switch between the first and second positions, making the movement of the operating component 13 less prone to jamming and providing a good operating experience.

[0059] In some alternative embodiments, such as Figure 6As shown, in the second position, the fourth end 132 is located on the movement path of the latch 3. When the elastic return member releases elastic force onto the latch 3, pushing the latch 3 to rotate, the fourth end 132 is pushed by the latch 3, causing the operating member 13 to rotate from the second position to the first position. By coordinating the elastic return member, the latch 3, and the operating member 13, when the latch 31 switches from the locked state to the unlocked state, the latch 3 can drive the operating member 13 to rotate and reset to the first position, thus achieving automatic reset of the safety lock assembly.

[0060] In some alternative embodiments, such as Figures 13 to 15 As shown, the pressing member 12 has a first side 122 facing the operating member 13, and the limiting part 121 is located on the first side 122 and protrudes towards the operating member 13; like Figure 16 As shown, the limiting groove 133 includes a vertical connecting portion 1331 and a horizontal connecting portion 1332. The vertical connecting portion 1331 extends along the length direction of the operating member 13, and the horizontal connecting portion 1332 is connected to the end of the vertical connecting portion 1331 away from the fourth end 132. The extension direction of the horizontal connecting portion 1332 is set at an angle to the length direction of the operating member 13, so that the horizontal connecting portion 1332 and the vertical connecting portion 1331 form a hook shape after being connected. The operating member 13 has a second side surface 134 facing the pressing member 12. The vertical connecting portion 1331 and the horizontal connecting portion 1332 can also extend along the axial direction of the fifth rotation axis 14 toward the pressing member 12 and protrude from the second side surface 134. In the first position, the horizontal connecting portion 1332 protruding from the second side surface 134 is located on the movement path of the limiting portion 121. Thus, under the action of the elastic return element, when the latch 3 pushes the handle 2 to rotate to the initial position via the third rotating shaft 6, the limiting part 121 also rotates with the handle 2 to engage with the limiting groove 133.

[0061] Optionally, such as Figures 13 to 15 As shown, the pressing member 12 has a third side 124 facing away from the operating member 13. The third side 124 may be provided with a protrusion 125. A platform 23 located below the protrusion 125 is provided in the through channel 22. A second spring 15 is provided between the protrusion 125 and the platform 23. The two ends of the second spring 15 abut against the platform 23 and the protrusion 125 respectively. By providing the second spring 15, when the pressing member 12 / press cap 123 is subjected to force and moves towards the locking member 9 to push it to rotate, the second spring 15 is compressed. When the force applied to the pressing member 12 / press cap 123 is removed, the pressing member 12 is pushed to the initial position under the action of the second spring 15. Thus, when the handle 2 is rotated to the initial position, the limiting part 121 is engaged with the limiting groove 133, eliminating the need for additional manual operation to reset the pressing member 12.

[0062] Specifically, such as Figure 11 and Figure 14 As shown, the platform 23 is provided with a first mounting hole 24, the protrusion 125 is provided with a second mounting hole 126, and the two ends of the second spring 15 are located at the first mounting hole 24 and the second mounting hole 126, respectively.

[0063] Specifically, such as Figure 11 , 13 As shown in Figure 16, the first side 122 of the pressing member 12 is also provided with an anti-detachment part 126. The anti-detachment part 126 is located above the limiting part 121. The through channel 22 is correspondingly provided with a detachment blocking part 25 located above the anti-detachment part 126. Through the cooperation of the anti-detachment part 126 and the detachment blocking part 25, the pressing member 12 is prevented from detaching from the through channel 22, thereby confirming the structural stability of the device.

[0064] The operating procedure for this assisted extraction device is as follows: Unlocking process: The user must first push the operating component 13 to rotate from the first position to the second position to release the restriction on the pressing component 12. Then, force is applied to the pressing component 12 to make it slide along the through channel 22 toward the locking component 9, and the locking component 9 is pushed to rotate. After the locking groove 91 disengages from the locking tongue 21, external force is applied to the handle 2 to make it rotate, which in turn pushes the latch 3 to rotate, so that the latch 31 disengages from the buckle position of the frame. Among them, the rotation of the latch 3 will push the fourth end 132 of the operating component 13 to rotate the operating component 13 from the second position to the first position. Locking and resetting process: Remove the external force applied to the handle 2 and the pressing member 12, the elastic resetting member releases the elastic force, pushes the latch 3 to rotate around the first rotating axis 4, and drives the latch 31 to switch to the locked state. The rotation of the latch 3 will drive the third rotating axis 6 to slide relative to the handle 2, and push the handle 2 to rotate around the second rotating axis 5 to the initial position. When the handle 2 rotates to the initial position, the locking tongue 21 of the handle 2 is just engaged with the locking groove 91. At the same time, the pressing member 12 moves along the through channel 22 to the initial position under the action of the second spring 15, and the limiting part 121 is just engaged with the limiting groove 133 of the operating member 13.

[0065] This utility model also provides a server rack, including a rack and pluggable functional modules connected to the rack. The rack is provided with insertion interfaces for the functional modules. Each insertion interface has a locking position on opposite sides. Each functional module has a pull-out device on opposite sides. When a functional module is pushed into the insertion interface and installed in place, the locking positions of the pull-out devices on opposite sides of the functional module engage with the corresponding locking positions, thereby installing the functional module onto the rack. Furthermore, the removal and installation of functional modules are achieved through the pull-out devices, requiring no other tools, making the operation time-saving, labor-saving, simple, and convenient.

[0066] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pull-out aid device, comprising a mounting base for connecting to a functional module, characterized in that, It also includes a handle and a latch. The latch has a first end and a second end. The first end is provided with a latch that can engage with a latching position on the frame. The latch is rotatably connected to the mounting base via a first rotating shaft. The handle is rotatably connected to the mounting base via a second rotating shaft. One of the second end and the handle is connected to a third rotating shaft, and the other is provided with a sliding structure. The third rotating shaft is rotatably connected to the sliding structure. The handle is configured to rotate around the second rotating shaft under external force. During the rotation of the handle around the second rotating shaft, the third rotating shaft slides through the sliding structure and drives the latch to rotate around the first rotating shaft, causing the latch to switch between a locked state and an unlocked state. In the locked state, the latch is engaged with the latch position of the frame; in the unlocked state, the latch is disengaged from the latch position of the frame.

2. The assisted extraction device as claimed in claim 1, characterized in that, The sliding structure includes a groove disposed on the handle or the second end, and the third rotating shaft may be disposed within the groove; or... The sliding structure includes a sliding sleeve, which is slidably fitted onto the handle or the second end, and the third rotating shaft is rotatably connected to the sliding sleeve; or... The sliding structure includes a slide rail and a slider. The slide rail is located on the handle or the second end, the slider is slidably connected to the slide rail, and the third rotating shaft is rotatably connected to the slider.

3. The assisted extraction device as claimed in claim 2, characterized in that, It also includes a locking element disposed on the mounting base, the locking element being used to restrict the rotation of the handle in order to maintain the bayonet in the locked state.

4. The assisted extraction device as claimed in claim 3, characterized in that, The locking member is rotatably connected to the mounting base via a fourth rotating shaft. The locking member is provided with a locking groove. The handle is provided with a locking tongue that engages with the locking groove. The pull-out device also includes an elastic member installed on the mounting base. The elastic member acts on the locking member so that the locking groove and the locking tongue remain engaged.

5. The assisted extraction device as claimed in claim 4, characterized in that, It also includes a release component for pushing the locking member to rotate so that the locking groove disengages from the bolt.

6. The assisted extraction device as claimed in claim 5, characterized in that, It also includes an elastic return member installed between the latch and the mounting base, the elastic return member being configured to apply a restoring force to the latch when the locking groove disengages from the locking tongue, thereby driving the latch to switch from the locked state to the unlocked state.

7. The assisted extraction device as claimed in claim 5, characterized in that, The release component includes a pressing member, the handle is provided with a through channel, the pressing member passes through the through channel, and the pressing member can be moved along the through channel toward the locking member by external force to push the locking member to rotate.

8. The assisted extraction device as claimed in claim 7, characterized in that, It also includes a safety lock assembly disposed on the mounting base, the safety lock assembly being switchable between a first state and a second state, wherein, In the first state, the safety lock assembly acts on the pressing member to restrict its sliding toward the locking member; In the second state, the safety lock assembly releases the constraint on the pressing member, allowing the pressing member to slide toward the locking member.

9. The assisted extraction device as claimed in claim 8, characterized in that, The safety lock assembly includes an operating member rotatably connected to the mounting base via a fifth rotation axis. The operating member has opposing third and fourth ends. The pressing member is provided with a limiting portion, wherein the third end is provided with a limiting groove opening towards the limiting portion. The operating member can rotate relative to the mounting base to switch between a first position and a second position. In the first position, the limiting groove is engaged with the limiting part to restrict the sliding of the pressing member; In the second position, the limiting groove is completely separated from the limiting part, thereby allowing the pressing member to slide freely.

10. The assisted extraction device as claimed in claim 9, characterized in that, In the second position, the fourth end is located on the movement path of the latch. During the process of the latch rotating around the first rotation axis, causing the latch to switch from the locked state to the unlocked state, the fourth end is pushed by the latch to cause the operating member to rotate and reset from the second position to the first position.

11. A server rack, characterized in that, The device includes a frame and a pluggable functional module connected to the frame. The frame is provided with an interface for inserting the functional module. Each side of the interface has a latching position. Each side of the functional module has a pull-out aid as described in any one of claims 1 to 10.

Images