Slidable folding integrated puller with locking and pulling functions

Abstract

The application discloses a slidable folding lock-assisted pulling function integrated pulling aid, and relates to the technical field of mechanical operating components, comprising: a pull ring assembly; an insert blade, both ends of the pull ring assembly are respectively connected with both sides of the insert blade through pin connection of limiting grooves or pivot holes; wherein, when the pull ring assembly is connected with the insert blade through the pivot holes, the pull ring assembly is in a rotating pulling state; and when the pull ring assembly is connected with the limiting grooves through pin connection, the pull ring assembly is in a locking state, so as to limit the rotation of the pull ring assembly relative to the insert blade and adapt to double-beam conventional cases and bottom single-beam semi-open cases. The application solves the technical problems that the traditional plug-in pulling and fixing operations are difficult to be simultaneously realized and adapt to different types of cases, leading to complicated operations and insufficient adaptability, achieves flexible switching of the plug-in pulling and fixing functions, adapts to different types of cases, and improves the technical effects of operation convenience and installation stability.

Description

Technical Field

[0001] This invention relates to the field of mechanical operating components, and more specifically to a sliding and foldable integrated extraction aid with locking function. Background Technology

[0002] During the installation and removal of chassis, insert blades must reliably achieve pull-out assistance and locking functions to ensure stable equipment operation. The efficient implementation of this function is crucial for the use of inserts. In existing technologies, pull-out assistance and locking of insert blades mostly rely on traditional pull-out aids or manual screw tightening. While this works in a single type of chassis scenario, with the diversification of chassis types, traditional methods cannot meet the adaptation needs of both conventional double-beam chassis and semi-open chassis with a single bottom beam. Either multiple components need to be operated separately, or the rotational pull-out and locking states cannot be flexibly switched, resulting in unreliable fixing, inconvenient pull-out assistance, insufficient installation stability and ease of operation, and difficulty in meeting the requirements for precise installation, removal, and stable use of inserts in different chassis. Summary of the Invention

[0003] This application provides a sliding and foldable locking pull-out integrated pull-out aid, which is used to address the technical problem that traditional plug-in pull-out and fixing operations are difficult to achieve simultaneously and adapt to different types of chassis, resulting in cumbersome operation and insufficient adaptability.

[0004] In view of the above problems, this application provides an integrated extraction aid with a sliding and foldable locking function.

[0005] This application provides a sliding, foldable, locking, integrated extraction aid, the extraction aid comprising:

[0006] Pull ring assembly; insert blade, wherein both ends of the pull ring assembly are respectively pin-connected to the limiting grooves or pivot holes on both sides of the insert blade; wherein, when the pull ring assembly and the insert blade are pin-connected through the pivot holes, it is in a rotation-assisted pulling state; when the pull ring assembly is pin-connected to the limiting grooves, it is in a locked state, so as to restrict the rotation of the pull ring assembly relative to the insert blade and adapt to conventional double-beam chassis and semi-open chassis with a single bottom beam.

[0007] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0008] A pull ring assembly and an insert blade are included. Both ends of the pull ring assembly are pinned to the limiting grooves or pivot holes on both sides of the insert blade. When the pull ring assembly and the insert blade are pinned together via the pivot holes, the assembly is in a rotation-assisted pulling state. When the pull ring assembly is pinned to the limiting grooves, it is in a locked state, restricting the rotation of the pull ring assembly relative to the insert blade and adapting to both conventional double-beam chassis and semi-open chassis with a single bottom beam. This achieves integrated pulling and locking functions. The elastic limiting lock between the pull ring assembly and the insert blade restricts the rotation of the pivot assembly, enabling flexible switching between insert-assisted pulling and fixing functions. This adapts to different types of chassis, improving operational convenience and installation stability. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the overall structure of a sliding and foldable integrated pull-out aid with locking function in the locked state, provided in an embodiment of this application.

[0011] Figure 2 This is a schematic diagram of the overall structure of a sliding and foldable integrated extraction aid with locking function in a rotating extraction state, provided in an embodiment of this application.

[0012] Figure 3 This is a schematic diagram of the pull ring assembly of a sliding, foldable, locking, and pull-out assist device provided in an embodiment of this application.

[0013] Figure 4 This is a schematic diagram of the panel structure of an integrated pull-out aid with a sliding and foldable locking function provided in an embodiment of this application.

[0014] Explanation of reference numerals in the attached drawings: pull ring assembly 1, pull ring 101, pin hole 1011, hand screw mounting hole 1012, bottom surface of pull ring 1013, hand screw 102, fixing pin 103, insert blade 2, pivot hole 201, limit groove 202, threaded hole 203, recess 204, crossbeam 3. Detailed Implementation

[0015] This application provides a sliding and foldable locking pull-out auxiliary device to address the technical problem that traditional plug-in pull-out and fixing operations are difficult to achieve simultaneously and adapt to different types of chassis, resulting in cumbersome operation and insufficient adaptability.

[0016] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0017] Example 1, as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, this application provides a sliding and foldable integrated extraction aid with locking function, the extraction aid comprising:

[0018] Pull ring assembly 1.

[0019] The two ends of the insert blade 2 and the pull ring assembly 1 are respectively pin connected to the limiting grooves 202 or the rotating shaft holes 201 on both sides of the insert blade 2.

[0020] When the pull ring assembly 1 and the insert blade 2 are connected by a pin through the pivot hole 201, it is in a rotating and pulling state. When the pull ring assembly 1 is connected to the limiting groove 202 by a pin, it is in a locked state, so as to limit the rotation of the pull ring assembly 1 relative to the insert blade 2 and adapt to the conventional chassis with double crossbeam 3 and the semi-open chassis with bottom single crossbeam 3.

[0021] Specifically, the pull ring assembly 1 is the core operating component of the puller, consisting of a pull ring 101, a fixing pin 103, and a hand screw 102. The pull ring 101 is provided with a pin hole 1011 and a hand screw mounting hole 1012. The pin hole 1011 is used to connect with the pivot hole 201 or the limiting groove 202 of the insert blade 2 through the fixing pin 103. The hand screw mounting hole 1012 allows the hand screw 102 to pass through and engage with the threaded hole 203 of the chassis beam 3 to achieve locking.

[0022] The pull ring assembly 1 is the core operating component of this puller, consisting of a pull ring 101, a fixing pin 103, and a hand-tightening screw 102. The pull ring assembly 1 has a pin hole 1011 and a hand-tightening screw mounting hole 1012, and the bottom surface 1013 of the pull ring has an adapter structure. The pin hole 1011 is used to connect with the pivot hole 201 or the limiting groove 202 of the insert blade 2 through the fixing pin 103. The hand-tightening screw mounting hole 1012 allows the hand-tightening screw 102 to pass through and engage with the threaded hole 203 of the chassis beam 3 to achieve locking. The bottom surface 1013 of the pull ring can fit against the corresponding structure of the insert blade 2 in the retracted or locked state, assisting in the positioning of the pull ring assembly 1.

[0023] The insert blade 2 is the adapter for the puller. It has a pivot hole 201, a limiting groove 202, and a recess 204 on both sides, as well as a threaded hole 203. The pivot hole 201 connects with the fixing pin 103 of the pull ring assembly 1 in the rotating pull-out state. The limiting groove 202 connects with the fixing pin 103 of the pull ring assembly 1 in the locked state. The recess 204 can fit against the bottom surface 1013 of the pull ring when the pull ring assembly 1 is locked or in the retracted state, assisting in positioning the pull ring assembly 1. The threaded hole 203 is used to engage with the hand screw 102 passing through the hand screw mounting hole 1012 of the pull ring assembly 1 to tighten it, thereby locking the puller to the chassis beam 3.

[0024] In terms of functional cooperation, the two ends of the pull ring assembly 1 are respectively connected to the limiting grooves 202 or the pivot holes 201 on both sides of the insert blade 2 by fixing pins 103. When the pull ring assembly 1 is connected to the insert blade 2 by the pivot holes 201, it is in a rotation-assisted pulling state, and the pull ring assembly 1 can be pulled to assist in the pulling of the insert blade 2; when the pull ring assembly 1 is connected to the limiting grooves 202 by the pin, it is in a locked state, restricting the rotation of the pull ring assembly 1 relative to the insert blade 2. Moreover, this structure can adapt to the conventional chassis with double crossbeams 3 and the semi-open chassis with a single crossbeam 3 at the bottom. It achieves double-end locking in the conventional chassis with double crossbeams 3, and bottom locking in the semi-open chassis with a single crossbeam 3 at the bottom, while the top pull ring assembly 1 can be stored, meeting the locking and assisting pulling requirements of the insert blade 2 under different chassis.

[0025] Furthermore, the pull ring assembly 1 includes:

[0026] Pull ring 101, the pull ring 101 is a semi-enclosed ring structure, with pin holes 1011 with a truncated circular cross-section at both ends, and a hand-tightening screw mounting hole 1012 at the middle position of the pull ring 101; hand-tightening screw 102, the hand-tightening screw 102 is connected to the pull ring 101 by screw through the hand-tightening screw mounting hole 1012; fixing pin 103, the fixing pin 103 has a truncated circular cross-section, and is used to pin-connect the pull ring 101 to the insert blade 2 by tightly fitting with the pin hole 1011.

[0027] Specifically, the pull ring assembly 1 is the core operating component of this puller. The pin holes 1011 at both ends of the pull ring 101 are connected to the pivot hole 201 or the limiting groove 202 of the insert blade 2 by fixing pin 103. The hand screw 102 passes through the hand screw mounting hole 1012 of the pull ring 101 and is used to cooperate with the threaded hole 203 of the insert blade 2 and the threaded hole 203 of the chassis beam 3 to achieve locking.

[0028] The assembly process is as follows: First, the fixing pin 103 is tightly fitted with the pin hole 1011 of the pull ring 101 to form a combined component of the pull ring 101 and the fixing pin 103. Next, the fixing pin 103 of this combined component is aligned with the pivot hole 201 or the limiting groove 202 of the insert blade 2 to complete the pin connection between the pull ring assembly 1 and the insert blade 2. Finally, the hand screw 102 is passed through the hand screw mounting hole 1012 of the pull ring 101. When the pull ring assembly 1 is in the locked state, the hand screw 102 is screwed into the threaded hole 203 of the insert blade 2 and the threaded hole 203 of the chassis beam 3 to complete the assembly of the entire puller.

[0029] During the workflow, when it is necessary to assist in pulling out the insert blade 2, adjust the pull ring assembly 1 so that the fixing pin 103 switches from the limiting groove 202 of the insert blade 2 to the rotating shaft hole 201. At this time, the pull ring assembly 1 is in a rotating assist pulling state, and pulling the pull ring 101 can assist in pulling the insert blade 2 out of the chassis. When it is necessary to lock the insert blade 2, adjust the pull ring assembly 1 so that the fixing pin 103 switches from the rotating shaft hole 201 to the limiting groove 202, and then tighten the hand screw 102 so that the hand screw 102 engages with the threaded hole 203 of the chassis beam 3, restricting the movement of the pull ring assembly 1 and the insert blade 2, thereby achieving locking.

[0030] Furthermore, the hand-tightening screw 102 is provided with a spring reset mechanism inside, which can be lifted and retracted when the hand-tightening screw 102 is not locked, so that the screw does not exceed the bottom surface 1013 of the pull ring.

[0031] Specifically, the hand-tightening screw 102, as a key component of the pull ring assembly 1, comprises a screw, a hand-operated end, and a built-in spring return mechanism. The spring return mechanism is integrated inside the hand-tightening screw 102 and works in conjunction with the screw to ensure that the screw can flexibly extend and retract along the axial direction of the hand-tightening screw 102. In terms of connection, the hand-tightening screw 102 is assembled with the pull ring 101 through a hand-tightening screw mounting hole 1012 machined in the middle of the pull ring 101. After assembly, the hand-tightening screw 102 can move axially within the mounting hole, and the spring return mechanism always applies an upward return force to the screw, ensuring that the screw remains in a retracted position when unlocked.

[0032] The assembly process follows these steps: First, pre-install the spring return mechanism into the pre-set cavity inside the hand-tightening screw 102, ensuring that the linkage structure between the spring return mechanism and the screw is properly installed without any jamming. Then, insert the hand-tightening screw 102 with the spring return mechanism installed into the hand-tightening screw mounting hole 1012 on the outside of the pull ring 101. Adjust the axial position of the hand-tightening screw 102 so that when the spring return mechanism is in its naturally extended state, the end of the screw does not extend beyond the bottom surface 1013 of the pull ring. This completes the assembly of the hand-tightening screw 102 and the pull ring 101, ultimately forming a complete pull ring assembly 1.

[0033] The workflow needs to be tailored to different usage states: When the puller is in the unlocked state, such as in the rotation puller state or the storage state, the spring reset mechanism inside the hand-tightening screw 102 releases the reset force, causing the screw to retract upwards along the hand-tightening screw mounting hole 1012. At this time, the end of the screw does not extend beyond the bottom surface 1013 of the pull ring, avoiding interference between the screw and the recess 204, limit groove 202, or other components of the chassis of the insert blade 2, ensuring that the pull ring assembly 1 can smoothly slide along the integrated groove structure of the insert blade 2 or rotate around the shaft hole 201; when it is necessary to switch to the locked state, the operator presses the key with their hand. The hand-operated end of the hand-tightening screw 102 overcomes the restoring force of the spring return mechanism, pushing the screw downwards along the hand-tightening screw mounting hole 1012 until the end of the screw extends beyond the bottom surface 1013 of the pull ring. Then, the hand-operated end is turned to make the screw form a threaded engagement with the threaded hole 203 of the insert blade 2 or the fixed threaded hole 203 of the chassis beam 3, thus completing the locking. When it is necessary to unlock, the hand-operated end is turned in the opposite direction to disengage the screw from the threaded hole 203. At this time, the spring return mechanism releases the restoring force again, pulling the screw upwards to retract and return to the state where it does not extend beyond the bottom surface 1013 of the pull ring.

[0034] Furthermore, the insert blade 2 includes:

[0035] A pivot hole 201 is tightly connected to a fixing pin 103; a limiting groove 202 is an integral structure of the pivot hole 201, which is a long groove structure with a truncated circular edge; a threaded hole 203; and a recessed platform 204, which is located below the threaded hole 203 and has a projected shape consistent with the pull ring 101. An integrated groove structure is provided on both sides of the recessed platform 204, with one end of the integrated groove structure being the pivot hole 201 and the other end being the limiting groove 202.

[0036] Specifically, the pivot hole 201 is one end of the integrated groove structure on both sides of the insert blade 2, and is tightly connected to the fixing pin 103. It is used to connect with the fixing pin 103 of the pull ring assembly 1 in the rotational pulling state to ensure the rotational stability of the pull ring assembly 1 during the pulling operation.

[0037] The limiting groove 202 and the rotating shaft hole 201 are an integrated structure. It is a long groove structure with a rounded edge and is located at the other end of the integrated groove structure. It is used to connect with the fixing pin 103 of the pull ring assembly 1 in the locked state to limit the rotation of the pull ring assembly 1 relative to the insert blade 2, so as to achieve the locking function.

[0038] The threaded hole 203 is provided on the insert blade 2 and is used to cooperate with the hand screw 102 of the pull ring assembly 1. When the hand screw 102 is screwed into the threaded hole 203 and cooperates with the threaded hole 203 of the chassis beam 3, the insert blade 2 is locked to the chassis.

[0039] The recessed platform 204 is located below the threaded hole 203, and its projected shape is consistent with that of the pull ring 101. An integrated groove structure is provided on both sides of the recessed platform 204. The integrated groove structure includes a pivot hole 201 and a limiting groove 202. The recessed platform 204 is used to fit against the bottom surface 1013 of the pull ring when the pull ring assembly 1 is in the locked or retracted state, to assist in the positioning of the pull ring assembly 1 and ensure the stable placement of the pull ring assembly 1 in the non-pull-out state.

[0040] In terms of connection, the pivot hole 201 is tightly connected to the fixing pin 103 of the pull ring assembly 1 in the rotating and pulling state, the limiting groove 202 is connected to the fixing pin 103 of the pull ring assembly 1 in the locked state, the threaded hole 203 is connected to the hand screw 102 of the pull ring assembly 1, the recess 204 is fitted to the bottom surface 1013 of the pull ring in the locked or stored state, and the integrated groove structure on both sides accommodates the sliding and rotation of the fixing pin 103. In terms of functionality, the pivot hole 201 allows the fixing pin 103 to connect in the rotational pull-out state, enabling the pull ring assembly 1 to rotate around it to achieve pull-out assistance. The limiting groove 202 connects with the fixing pin 103 in the locked state, restricting rotation to achieve locking. The threaded hole 203 cooperates with the hand-tightening screw 102, and together with the chassis crossbeam 3, achieves mechanical locking. The recessed platform 204 cooperates with the bottom surface 1013 of the pull ring to position the pull ring assembly 1, and the integrated groove structure on both sides provides the fixing pin 103 with a switching path from the pivot hole 201 to the limiting groove 202, adapting to different usage scenarios of the double crossbeam 3 conventional chassis and the bottom single crossbeam 3 semi-open chassis, ensuring that the pull-out assist device reliably achieves its functions in the pull-out, locking, and storage states.

[0041] Furthermore, the integrated groove structure and the fixing pin 103 form a sliding fit relationship; when the pull ring assembly 1 is in the position of the rotating shaft hole 201, it can rotate freely to perform the pull-out operation; when the pull ring assembly 1 enters the middle of the limiting groove 202, it can only slide along the groove and cannot rotate, so as to achieve the locking state.

[0042] Specifically, the integrated groove structure is arranged on both sides of the recess 204 of the insert blade 2. One end is a pivot hole 201, and the other end is a limiting groove 202. The fixing pin 103 passes through the pin hole 1011 of the pull ring 101 and is embedded in the integrated groove structure, forming a sliding fit between the two. This fit is achieved by the precise matching of the dimensions of the fixing pin 103 and the integrated groove structure, which ensures that the fixing pin 103 can slide smoothly along the extension direction of the integrated groove structure, and avoids obvious loosening or jamming during the sliding process. This provides a stable basis for the position switching of the pull ring assembly 1 between the pivot hole 201 and the limiting groove 202, while ensuring the integrity of the connection between the pull ring assembly 1 and the insert blade 2.

[0043] When the pull ring assembly 1 drives the fixing pin 103 to slide to the position of the rotating shaft hole 201 of the integrated groove structure, the fixing pin 103 and the rotating shaft hole 201 are tightly connected. At this time, the pull ring assembly 1 can rotate freely around the fixing pin 103. The operator holds the semi-enclosed annular structure of the pull ring 101 and applies external force. The pull ring 101 can then rotate flexibly around the fixing pin 103 as the axis. The lever force generated by the rotation is transmitted to the insert blade 2, thereby smoothly performing the assisted pulling operation and gradually pulling the insert blade 2 out of the machine housing. Throughout the rotation process, due to the tight connection between the fixing pin 103 and the rotating shaft hole 201, the pull ring assembly 1 and the insert blade 2 will not wobble relative to each other, ensuring that the assisted pulling force can be stably transmitted and preventing damage to the insert blade 2 during the pulling process.

[0044] When the pull ring assembly 1 drives the fixing pin 103 to slide from the pivot hole 201 along the integrated groove structure to the middle of the limiting groove 202, it is restricted by the tangential circular long groove structure of the limiting groove 202. Since the cross-section of the fixing pin 103 is also tangentially circular, the tangential planes of the two fit together, directly restricting the rotational freedom of the fixing pin 103. This allows the pull ring assembly 1 to slide only a small range along the long groove direction of the limiting groove 202, and it can no longer rotate around the fixing pin 103, thus establishing the structural basis for the locked state. In this locked state, the hand screw 102 can be tightened so that it passes through the hand screw mounting hole 1012 of the pull ring 101 and is precisely screwed into the threaded hole 203 of the insert blade 2 or the fixing threaded hole 203 of the chassis beam 3. This further locks the relative position of the pull ring assembly 1, the insert blade 2, and the chassis beam 3, ensuring the installation stability of the insert blade 2 within the chassis and effectively preventing displacement of the insert blade 2 due to equipment vibration or external force.

[0045] Furthermore, the locking state can be either a double-ended locking state or a single-ended fixed state.

[0046] Specifically, the double-end locking state is applicable to conventional chassis with double crossbeams 3. In this state, the pull ring assemblies 1 at the top and bottom of the puller need to be slid to the middle of the integrated groove structure on both sides of the insert blade 2. At this time, the fixing pin 103 of the pull ring assembly 1 is in the middle of the limiting groove 202. Due to the chamfered circular groove structure of the limiting groove 202, the pull ring assembly 1 cannot rotate and can only slide slightly along the groove. Then, the hand screws 102 on the pull ring 101 are aligned with the fixing threaded holes 203 of the upper and lower crossbeams 3 of the chassis, and the hand screws 102 are tightened clockwise. The screws of the hand screws 102 pass through the hand screw mounting holes 1012 of the pull ring 101 and form a reliable threaded connection with the fixing threaded holes 203 of the crossbeams 3. Finally, the insert blade 2 is stably locked between the double crossbeams 3, effectively restricting the front-to-back and vertical displacement of the insert blade 2 in the chassis, and meeting the bidirectional fixing requirements of the conventional chassis with double crossbeams 3 for the insert blade 2.

[0047] The single-end fixed state is suitable for semi-open chassis with a single bottom crossbeam 3. In this state, the top and bottom pull ring assemblies 1 need to be operated differently. For the top pull ring assembly 1, it needs to be slid to the bottom of the integrated groove structure of the insert blade 2, so that the fixing pin 103 of the pull ring assembly 1 fits against the bottom of the groove structure. Then, align the hand-tightening screw 102 of the top pull ring 101 with the preset threaded hole 203 on the insert blade 2, and tighten the hand-tightening screw 102 so that the screw of the hand-tightening screw 102 passes through the hand-tightening screw mounting hole 1012 of the pull ring 101 and locks with the threaded hole 203 of the insert blade 2. At this time, the top pull ring assembly 1 and the insert blade 2 fit tightly together, forming a whole without protrusion in the front projection. For the bottom pull ring assembly 1, the operation method is the same as that of the pull ring assembly 1 in the double-end locking state. Slide it to the middle of the integrated groove structure of the insert blade 2, so that the hand screw 102 is aligned with the fixing thread hole 203 of the bottom crossbeam 3 and tightened. The insert blade 2 is stably fixed in the semi-open chassis by locking at a single point at the bottom, which is suitable for the structural feature of the semi-open chassis that only has a crossbeam 3 at the bottom.

[0048] Furthermore, when the chassis is a conventional chassis with double crossbeams 3, the pull ring assembly 1 is slid to the middle of the integrated groove structure of the insert blade 2, the hand screw 102 is aligned with the fixing threaded hole 203 of the crossbeam 3, and the hand screw 102 is screwed in to lock the insert blade 2, thereby achieving a double-end locking state.

[0049] Specifically, when the adapted chassis is a conventional double-beam 3 chassis, the position of the pull ring assembly 1 of the pull aid needs to be adjusted first. The operator can hold the semi-enclosed annular structure of the pull ring 101 and apply force along the extension direction of the integrated groove structure of the insert blade 2, causing the fixing pin 103 of the pull ring assembly 1 to slide from the pivot hole 201 end of the integrated groove structure towards the center, until the fixing pin 103 is fully inserted into the center of the limiting groove 202. At this time, because the cross-section of the fixing pin 103 is a truncated circular shape and the limiting groove 202 is a long groove structure with a truncated circular shape, the truncated planes of the two fit together, and the pull ring assembly 1 can no longer rotate around the fixing pin 103, but can only remain in the current position, laying the structural foundation for the subsequent locking operation.

[0050] After the pull ring assembly 1 slides into place, the position of the hand-tightening screw 102 needs to be adjusted to align with the crossbeam 3. Since the hand-tightening screw 102 is connected to the pull ring 101 through the hand-tightening screw mounting hole 1012 in the middle of the pull ring 101, the operator can gently press the hand-operated end of the hand-tightening screw 102 to overcome the reset force of its internal spring reset mechanism, so that the screw of the hand-tightening screw 102 extends downwards out of the bottom surface 1013 of the pull ring. Then, the position of the pull ring assembly 1 is finely adjusted to ensure that the screw axis of the hand-tightening screw 102 is completely aligned with the axis of the fixing threaded hole 203 of the crossbeam 3, so as to avoid thread misalignment during subsequent tightening.

[0051] After aligning the hand-tightening screw 102 with the fixing threaded hole 203 of the crossbeam 3, the operator turns the hand-operated end of the hand-tightening screw 102 clockwise, gradually screwing the screw into the fixing threaded hole 203 of the crossbeam 3. As the tightening force increases, the hand-tightening screw 102 exerts pressure on the pull ring assembly 1 in the direction of the crossbeam 3, causing the pull ring assembly 1 to fit tightly against the insert blade 2, ultimately locking the insert blade 2 stably between the upper and lower crossbeams 3 of the chassis. At this time, the displacement of the insert blade 2 in the front-back and up-down directions is restricted, and the double-end locking state of the pull ring assembly 1 is officially achieved, which can meet the requirements of the conventional chassis of the double crossbeam 3 for the installation stability of the insert blade 2, and at the same time ensure that the insert blade 2 will not loosen due to vibration or external force during subsequent equipment operation.

[0052] Furthermore, when the chassis is a semi-open chassis with a single crossbeam 3 at the bottom, the top pull ring assembly 1 slides to the bottom of the integrated groove structure of the insert blade 2, the thumb screw 102 is aligned with the threaded hole 203 of the insert blade 2, and the screw is screwed in to lock the pull ring assembly 1 and the insert blade 2 together to form a whole without protrusion in the front projection; the bottom pull ring assembly 1 slides to the middle of the integrated groove structure of the insert blade 2, the thumb screw 102 is aligned with the fixing threaded hole 203 of the crossbeam 3, and the thumb screw 102 is screwed in to lock the insert blade 2, thereby achieving bottom locking.

[0053] Specifically, when the chassis is a semi-open chassis with a single crossbeam 3 at the bottom, the pull ring assembly 1 at the top is operated first. The operator holds the semi-enclosed annular structure of the pull ring 101 and applies force along the extension direction of the integrated groove structure on both sides of the insert blade 2, causing the fixing pin 103 of the pull ring assembly 1 to slide from the pivot hole 201 end of the integrated groove structure to the bottom until the fixing pin 103 is completely in contact with the bottom of the groove of the integrated groove structure. At this point, align the hand-tightening screw 102 on the top pull ring 101 with the pre-set threaded hole 203 of the insert blade 2, press the hand-operated end of the hand-tightening screw 102 to overcome the reset force of its internal spring reset mechanism, so that the screw of the hand-tightening screw 102 extends downwards out of the bottom surface 1013 of the pull ring, and then turn the hand-tightening screw 102 clockwise to allow the screw to gradually screw into the threaded hole 203 of the insert blade 2 until the pull ring assembly 1 and the insert blade 2 are tightly fitted, and the bottom surface 1013 of the pull ring is completely fitted with the recess 204 of the insert blade 2, finally forming a whole without protrusion in the front projection, avoiding interference between the top structure and other components in the semi-open chassis.

[0054] After locking the top pull ring assembly 1, the bottom pull ring assembly 1 is operated next. The operator also holds the semi-enclosed annular structure of the bottom pull ring 101 and slides it along the integrated groove structure of the insert blade 2, causing the fixing pin 103 of the bottom pull ring assembly 1 to move from the end of the rotating shaft hole 201 towards the center, until the fixing pin 103 enters the center of the integrated groove structure. At this time, the fixing pin 103 is in the center of the limiting groove 202. Due to the tangential circular long groove structure of the limiting groove 202, the bottom pull ring assembly 1 cannot rotate and can only maintain its current position. Next, align the hand screw 102 of the bottom pull ring 101 with the fixing threaded hole 203 of the bottom crossbeam 3 of the chassis, press the hand operation end of the hand screw 102 to make the screw extend out of the bottom surface 1013 of the pull ring, and tighten the hand screw 102 clockwise, so that the screw is gradually screwed into the fixing threaded hole 203 of the crossbeam 3. The bottom pull ring assembly 1 is fixed to the crossbeam 3 by the locking force of the hand screw 102, which in turn drives the plug-in blade 2 to be stably fixed in the chassis, and finally achieves bottom locking, which is adapted to the structural characteristics of the bottom single crossbeam 3 semi-open chassis.

[0055] Furthermore, the pull ring assembly 1 and the insert blade 2 are made of metal or high-strength engineering plastic.

[0056] Specifically, when the pull ring assembly 1 is made of metal, the metal material possesses high strength, high rigidity, and good wear resistance, capable of withstanding the external forces during the pull-out operation and the frictional wear over long-term use. This ensures that the pull ring assembly 1 is not easily deformed or damaged during repeated rotation, sliding, and locking, maintaining structural stability. Common metal materials include aluminum alloy or stainless steel. Aluminum alloy is lighter and meets strength requirements, reducing the overall weight of the pull-out aid for easier operation; stainless steel has excellent corrosion resistance, making it suitable for environments with high humidity or slight corrosion, thus expanding the applicability of the pull-out aid.

[0057] When the pull ring assembly 1 is made of high-strength engineering plastic, the material possesses good toughness, impact resistance, and moldability. It can be precisely machined using injection molding to create the semi-enclosed annular structure of the pull ring 101, the end-cut circular pin hole 1011, and the central hand-tightening screw mounting hole 1012, ensuring precise dimensions of each structure and meeting the requirements for mating with the fixing pin 103 and the hand-tightening screw 102. Simultaneously, high-strength engineering plastic is lighter, requiring less effort to operate. Its surface can be treated to form a smooth surface, reducing frictional resistance with the integrated groove structure of the insert blade 2 during sliding, resulting in smoother state switching.

[0058] When the insert blade 2 is made of metal, the high strength of the metal ensures that the insert blade 2 is not easily bent or broken when it is in contact with the chassis beam 3 and bears the pulling force, thus maintaining the integrity of the structure. The rigidity of the metal material also ensures that the integrated groove structure on both sides of the insert blade 2 (including the pivot hole 201 and the limiting groove 202) is not easily worn or deformed during long-term sliding and connection with the fixing pin 103. This ensures that the tight connection between the fixing pin 103 and the pivot hole 201, and the sliding contact with the limiting groove 202, remain stable and reliable, without affecting the accuracy of the pulling aid's state switching.

[0059] When the insert blade 2 is made of high-strength engineering plastic, its molding process allows for the integrated machining of the slot structure, threaded hole 203, and recess 204, reducing assembly steps and improving production efficiency. Simultaneously, high-strength engineering plastic possesses certain insulating properties, which can avoid the potential conductive risks associated with metal materials when used inside electronic device enclosures, enhancing safety. Its resistance to chemical corrosion also allows it to withstand the mild chemical environment inside electronic devices, extending the service life of the insert blade 2.

[0060] The pull ring assembly 1 and the insert blade 2 are made of metal or high-strength engineering plastics, based on the mechanical properties, processing performance and applicable environmental characteristics of the materials. This ensures that the pull aid can meet the force transmission requirements of the pull operation in different scenarios such as the conventional double crossbeam 3 chassis and the semi-open chassis with the bottom single crossbeam 3, while also ensuring the structural stability of the locked state. At the same time, it takes into account the ease of operation and service life, and adapts to the actual needs of electronic device plug-in installation and removal.

[0061] Furthermore, slide the top pull ring assembly 1 and the bottom pull ring assembly 1 to the bottom of the integrated groove structure of the insert blade 2, align the hand screw 102 with the threaded hole 203 of the insert blade 2, screw in the screw, and lock the pull ring assembly 1 and the insert blade 2 together to form a whole without protrusions in the front projection, so as to store the puller.

[0062] Specifically, when starting the storage operation, the positions of the top and bottom pull ring assemblies 1 are adjusted respectively. The operator holds the semi-enclosed annular structure of the pull ring 101 and applies a gentle external force along the extension direction of the integrated groove structure on both sides of the insert blade 2, causing the fixing pin 103 of the pull ring assembly 1 to slide from the pivot hole 201 end or the limiting groove 202 end of the integrated groove structure to the bottom until the fixing pin 103 is completely in contact with the bottom of the integrated groove structure. At this time, the bottom surface 1013 of the pull ring is tightly in contact with the recess 204 on the insert blade 2 located below the threaded hole 203. Because the projected shape of the recess 204 is consistent with the pull ring 101, the pull ring assembly 1 can be stably attached to the surface of the insert blade 2 without displacement or shaking, preparing for the subsequent locking operation.

[0063] After the pull ring assembly 1 slides into place, the hand-tightening screws 102 of the top and bottom pull ring assemblies 1 are operated. The operator presses the hand-operated end of the hand-tightening screw 102 to overcome the restoring force of the internal spring return mechanism, causing the screw of the hand-tightening screw 102 to extend downward along the hand-tightening screw mounting hole 1012 of the pull ring 101 until the end of the screw extends beyond the bottom surface 1013 of the pull ring. Then, the position of the pull ring assembly 1 is finely adjusted to ensure that the screw axis of the hand-tightening screw 102 is completely aligned with the axis of the preset threaded hole 203 on the insert blade 2, to avoid thread misalignment during subsequent tightening and to ensure smooth locking operation.

[0064] After aligning the hand-tightening screw 102 with the threaded hole 203 of the insert blade 2, turn the hand-operated end of the hand-tightening screw 102 clockwise, gradually screwing the screw into the threaded hole 203 of the insert blade 2. As the tightening force increases, the hand-tightening screw 102 exerts pressure on the pull ring assembly 1 towards the insert blade 2, causing the pull ring assembly 1 and the insert blade 2 to fit together more tightly. Finally, both the top and bottom pull ring assemblies 1 are locked into a single unit with the insert blade 2. At this point, viewed from the front, this unit has no protruding structures, which avoids the puller occupying extra space when not in use and also prevents the pull ring assembly 1, hand-tightening screw 102, and other components from being damaged by impact due to exposure, ensuring the structural integrity of the puller after storage and its reliability for subsequent use.

[0065] It should be noted that the order of the embodiments described above is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments. Furthermore, the above description focuses on specific embodiments of this specification. Additionally, the processes depicted in the accompanying drawings do not necessarily require a specific or sequential order to achieve the desired results. In some implementations, multitasking and parallel processing are possible or may be advantageous.

[0066] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0067] This specification and accompanying drawings are merely illustrative examples of this application and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from its scope. Therefore, if such modifications and variations fall within the scope of this application and its equivalents, this application intends to include such modifications and variations.

Claims

1. A sliding, foldable, locking, and integrated extraction aid, characterized in that, include: A pull ring assembly, comprising a pull ring, a hand-tightening screw, and a retaining pin, wherein a hand-tightening screw mounting hole is machined in the middle of the pull ring, and the hand-tightening screw is connected to the pull ring through the hand-tightening screw mounting hole by a screw. The insert blade has pull ring assemblies at both its top and bottom. The two ends of the pull ring assemblies are respectively pin-connected to the limiting grooves or rotating shaft holes on both sides of the insert blade. The limiting grooves and the rotating shaft holes are integrated groove structures, and the integrated groove structure and the fixing pins form a sliding fit relationship. When the pull ring assembly is pin-connected to the insert blade through the pivot hole, it is in a rotating and assisted pulling state. When the pull ring assembly is pin-connected to the limiting groove, it is in a locked state to restrict the rotation of the pull ring assembly relative to the insert blade and to adapt to conventional double-beam chassis and semi-open chassis with a single bottom beam. The beam is provided with a fixing threaded hole. In the locked state, the hand screw on the pull ring assembly is screwed into the fixing threaded hole on the beam.

2. The sliding foldable locking pull-out aid device as described in claim 1, characterized in that, The pull ring is a semi-enclosed ring structure with pin holes with a tangential circular cross-section machined at both ends; The fixed pin has a truncated circular cross-section and connects the pull ring and the insert blade by tightly fitting with the pin hole.

3. The sliding foldable locking pull-out aid device as described in claim 2, characterized in that, The hand-tightening screw is equipped with a spring reset mechanism inside. When the hand-tightening screw is not locked, it can be lifted and retracted to prevent the screw from going beyond the bottom surface of the pull ring.

4. The sliding foldable locking pull-out aid device as described in claim 1, characterized in that, The insert blade includes: A pivot hole, wherein the pivot hole is tightly connected to a fixing pin; The limiting groove is a long groove structure with a rounded edge; Threaded hole; The recessed platform is located below the threaded hole, and its projected shape is consistent with that of the pull ring. An integrated groove structure is provided on both sides of the recessed platform. One end of the integrated groove structure is a pivot hole, and the other end is a limiting groove.

5. The sliding foldable locking pull-out aid device as described in claim 4, characterized in that, When the pull ring assembly is in the pivot hole position, it can rotate freely to perform the pull-out operation; Once the pull ring assembly enters the middle of the limiting groove, it can only slide along the groove and cannot rotate, thus achieving a locked state.

6. The sliding foldable locking extraction aid as described in claim 5, characterized in that, The locking state can be either double-ended locking or single-ended fixed.

7. The sliding foldable locking extraction aid with integrated extraction function as described in claim 6, characterized in that, When the chassis is a conventional double-beam chassis, slide the pull ring assembly to the middle of the integrated slot structure of the insert blade, align the hand screw with the fixing threaded hole of the beam, and screw in the hand screw to lock the insert blade, achieving a double-end locking state.

8. The sliding foldable locking extraction aid as described in claim 6, characterized in that, When the chassis is a semi-open chassis with a single crossbeam at the bottom, the top pull ring assembly slides to the bottom of the integrated slot structure of the plug-in blade, aligns the hand screw with the threaded hole of the plug-in blade, screws in the screw, and locks the pull ring assembly and the plug-in blade together to form a whole with no protrusion in the front projection. Slide the bottom pull ring assembly into the center of the integrated groove structure of the insert blade, align the hand screw with the fixing threaded hole of the crossbeam, and screw in the hand screw to lock the insert blade, thus achieving bottom locking.

9. The sliding foldable locking extraction aid as described in claim 1, characterized in that, The pull ring assembly and insert blade are made of metal.

10. The sliding foldable locking extraction aid as described in claim 1, characterized in that, Slide the top and bottom pull ring assemblies to the bottom of the integrated slot structure of the insert blade, align the thumb screw with the threaded hole of the insert blade, and screw in the screw to lock the pull ring assembly and insert blade together to form a whole without protrusions in the front projection, for storage of the puller.

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