Equipment slide rail quick locking structure and server slide rail

Abstract

The invention discloses an equipment slide rail fast locking structure and a server slide rail, the equipment slide rail fast locking structure comprises a locking unit and a connecting piece, and the locking unit is arranged between a first rail and a second rail; the locking unit comprises a locking groove, a locking piece, a guide limiting piece and a clamping fixing assembly, the locking groove is formed in the first rail, the end, in the width direction of the first rail, of the locking groove is open, and the connecting piece is arranged in the locking groove; the locking piece is rotationally connected to the first rail; the clamping and fixing assembly is configured to be capable of being switched between at least two clamping modes; when the locking piece is in an unlocking state, the connecting piece can enter or leave the locking groove; in the locking state, the locking piece is clamped and fixed to the first rail through the clamping and fixing assembly, and the connecting piece is limited and locked in the locking groove through the locking piece; the guide limiting piece is arranged on the second rail and provided with a guide limiting part, the locking piece is provided with a guide matching part, and when the guide matching part moves to abut against the guide limiting part, the locking piece is driven to rotate, so that the locking piece is switched from the unlocking state to the locking state.

Description

Technical Field

[0001] The present invention belongs to the technical field of slide rails, and in particular relates to a quick-locking structure of an equipment slide rail and a server slide rail. Background Art

[0002] Slide rails, as a fundamental and common mechanical component, play a vital role in a wide range of mechanical manufacturing and applications. Their inherent sliding properties have led to their widespread adoption in numerous scenarios requiring sliding operations. For example, in server cabinets, the connection between the server chassis and the cabinet relies heavily on slide rails. With the help of slide rails, the server chassis can be smoothly withdrawn from the cabinet for maintenance, inspection, or component replacement. At the same time, it can also be easily re-entered via the slide rails and restored to its normal operating position. This design greatly improves the efficiency of server maintenance and management.

[0003] Among existing server chassis and rail connections, some utilize direct fastener connections. Specifically, bolts, nuts, and other fasteners securely fasten the server chassis and rails together. However, this connection method has significant drawbacks. Since the installation and removal of fasteners require additional tools such as screwdrivers and wrenches, chassis installation and removal are cumbersome, significantly reducing ease of installation and removal. This not only increases the operator's workload, but also increases server maintenance time and impacts overall work efficiency.

[0004] To address these issues, new designs are available on the market that use elastic locking plates in conjunction with pins and pin holes to achieve automatic elastic locking of server chassis. For example, the technical solution disclosed in Chinese utility model patent application number CN201821598972.5 works as follows: When the pin on the server chassis enters the pin hole, the elastic locking plate is triggered to spring open. The pin then moves to a predetermined position within the pin hole, at which point the elastic locking plate resets and locks the pin, completing the chassis locking operation. This design simplifies the chassis installation and removal process to a certain extent, eliminating the need for additional tools and improving operational convenience.

[0005] However, this method of locking the chassis with elastic locking plates still has many significant drawbacks. On the one hand, in actual applications, due to the material and structural characteristics of the elastic locking plates themselves, its locking reliability is difficult to guarantee, and the locking strength is low. When the chassis experiences large vibrations or is subjected to external impact during the sliding process, the chassis can easily drive the pins to hit the elastic locking plates, causing the elastic locking plates to accidentally pop open, resulting in a mislocking phenomenon. Mislocking not only affects the normal operation of the server, but can also damage the delicate components inside the server, leading to serious consequences such as data loss.

[0006] On the other hand, the method of locking pins through elastic locking plates has the problem of poor adaptability. In actual production and use, the server chassis may need to replace pin holes of different hole types according to different usage requirements, design specifications, or compatibility with other equipment. However, the existing elastic locking plate locking structure is often designed for pin holes of a specific hole type, and the shape, size, and locking mechanism of the elastic locking plate are closely matched with the specific pin hole. This results in that when it is necessary to replace pin holes of different hole types, the existing elastic locking plate cannot be effectively adapted, and the entire locking structure needs to be completely redesigned, including the material selection of the elastic locking plate, the processing technology, and the assembly method with the chassis and slide rails. This not only increases the product R&D cycle, but also significantly increases the cost of replacement, limits the flexibility and versatility of the product, and cannot meet the diverse and rapidly changing needs of the market. Summary of the Invention

[0007] In order to solve the above problems, the purpose of the present invention is to provide a quick-locking structure for an equipment slide rail and a server slide rail, wherein the quick-locking structure has high locking reliability and can be adapted to different hole shapes.

[0008] To achieve the above object, the technical solution of the present invention is: A device slide rail quick lock structure is used to connect a device to a first rail, wherein the first rail is slidably connected to a second rail, and comprises a locking unit and a connecting member, wherein the locking unit is arranged between the first rail and the second rail, and the connecting member is arranged on the device, and the locking unit locks the connecting member to lock the device on the first rail; The locking unit includes a locking groove, a locking member, a guide limit member, and a snap-fit ​​fixing assembly. The locking groove is formed on the first rail, and one end of the locking groove is open in the width direction of the first rail. The connecting member is disposed therein through the opening of the locking groove. The locking member is rotatably connected to the first rail and is located on one side of the locking groove. The snap-fit ​​fixing assembly is disposed between the locking member and the first rail. The locking assembly is configured to be switchable between at least two locking modes, and when in the at least two locking modes, the locking member can be switched from an unlocked state to the corresponding at least two locked states; when the locking member is in the unlocked state, the connecting member can enter or leave the locking groove; when in the locked state, the locking member is locked and fixed to the first rail by the locking assembly, and the locking member limits and locks the connecting member in the locking groove; The guide limiter is provided on the second rail and is provided with a guide limiter portion, the guide limiter portion is obliquely extended, and the locking member is provided with a guide matching portion. When the first rail slides toward the second rail, the guide limiter portion is located on the moving path of the guide matching portion. When the guide matching portion moves to abut against the guide limiter portion, the locking member is driven to rotate, and the guide matching portion moves along the guide limiter portion to switch the locking member from the unlocked state to the locked state. After the first rail slides to a predetermined position, the guide limiter portion limits the rotation of the locking member toward the unlocked state by limiting the guide matching portion.

[0009] According to an embodiment of the present invention, the snap-fitting assembly comprises a snap-fitting portion and a snap-fitting portion respectively provided on the locking member and the first rail, wherein the snap-fitting portion is provided on the snap-fitting portion and can be snap-fitted and fixed thereto; The engaging portion is movably provided on the locking member, and the engaging portion is configured to switch between at least two fixed states relative to the locking member; the engaging fitting portion extends along a rotation trajectory of the engaging portion, and the engaging portion can move along the engaging fitting portion when the locking member rotates; The engaging portion is provided with at least two engaging positions, and when the engaging portion is in at least two fixed states, it can be moved and engaged in the corresponding at least two engaging positions respectively; The number of the engaging modes of the engaging fixing assembly corresponds to the number of the fixed states of the engaging portion and the number of the engaging positions of the engaging fitting portion; when the engaging fixing assembly is in different engaging modes, the engaging portion is in the corresponding fixed state.

[0010] According to an embodiment of the present invention, the engaging portion is a engaging piece, and the engaging fitting portion is a slot. In different fixed states, the engaging piece has different dimensions in the width direction of the slot. The card slot is provided on one side of the lock slot, and the card slot is provided with an unlocking position and each of the engaging positions in sequence from an end away from the lock slot to an end close to the lock slot, and engaging channels are provided between adjacent unlocking positions and engaging positions and between adjacent engaging positions, and the width of each of the engaging channels gradually decreases in a direction close to the lock slot; The dimension of the engaging member in the width direction of the slot in each of the fixed states is greater than the width of the corresponding engaging channel, and the engaging member is enabled to pass through the engaging channel and enter the corresponding engaging position by overcoming the friction force generated by the elastic deformation between the engaging member and the engaging channel.

[0011] According to an embodiment of the present invention, the latching slot is provided with a latching protrusion on at least one inner wall of the latching channel, and the latching member passes over the latching protrusion to enter the corresponding latching position.

[0012] According to an embodiment of the present invention, the widths of the unlocking position and each of the engaging positions gradually decrease in a direction approaching the locking slot.

[0013] According to an embodiment of the present invention, a locking hole is provided on the locking member, and the engaging member is locked in the locking hole. The engaging member is rotated to switch to a different fixed state by overcoming the friction between the locking hole and the engaging member.

[0014] According to one embodiment of the present invention, a card block is provided on the outer wall of the peripheral side of the engaging member, and the locking member is provided with a plurality of positioning grooves on the peripheral side of the engaging hole. The card block is provided in the positioning groove, and when the engaging member is in different fixed states, the card block is in different positioning grooves. The engaging member is rotated by overcoming the friction force generated by the elastic deformation between the card block and the inner wall of the engaging hole, so that the card block enters different positioning grooves.

[0015] According to one embodiment of the present invention, the guide limiting portion is provided with a plurality of guide sections and a plurality of displacement compensation sections, the guide sections are arranged to extend obliquely relative to the sliding direction of the first rail, and the displacement compensation sections are arranged to extend along the sliding direction of the first rail; In the direction in which the first rail slides toward the second rail, a plurality of guide segments and a plurality of displacement compensation segments are alternately arranged in sequence, and when the locking member is in the locked state, the guide matching portion moves to the displacement compensation segment; When the guide fitting part abuts against the guide section, the guide section drives the locking member to rotate, so that the guide fitting part rotates through the guide section and moves to the displacement compensation section; when the guide fitting part moves to the displacement compensation section, it can move back and forth along the sliding direction of the first rail.

[0016] According to one embodiment of the present invention, the guide limit piece protrudes toward the first rail, and a guide limit groove is provided on the guide limit piece, the guide limit groove is open toward one end of the first rail in the sliding out direction relative to the second rail, the guide limit portion is a guide limit wall, and the guide limit wall is provided on the groove wall of the guide limit groove toward the side of its opening, and the guide matching portion enters the guide limit groove from the opening thereof to achieve abutment with the guide limit wall.

[0017] According to an embodiment of the present invention, the guide limiter is formed by punching the second rail toward the first rail.

[0018] According to an embodiment of the present invention, the connecting member includes a head portion, a middle portion, and a tail portion in sequence, wherein the diameter of the middle portion is smaller than that of the head portion and the tail portion, and the tail portion is connected to the device; The width of the locking groove is greater than the diameter of the middle portion, the middle portion enters the locking groove from one end of the opening of the locking groove, the head portion and the tail portion are respectively located on both sides of the locking groove, and the width of the locking groove is less than the diameter of the head portion at least on the side away from the opening thereof; The locking member limits the head portion to prevent the middle portion from leaving the open end of the locking slot, thereby locking the connecting member in the locking slot.

[0019] Based on the same concept, the present invention also provides a server slide rail, including any one of the above-mentioned equipment slide rail quick lock structures.

[0020] Due to the adoption of the above technical solution, the present invention has the following advantages and positive effects compared with the prior art: 1. In the locked state, the locking member of the present invention is secured to the first rail by means of a snap-fit ​​assembly, thereby locking the connector within the locking slot. Locking is achieved through the snap-fitting force of the snap-fit ​​assembly, achieving a spring-free design. Furthermore, the high strength of the locking member further enhances locking reliability.

[0021] The present invention relies on a guide limiter to drive the locking element from the unlocked state to the locked state. When the lock is switched to the locked state and the first rail is retracted into the second rail, the guide limiter effectively restricts the rotation of the locking element toward the unlocked state by restricting the guide mating portion. This fundamentally prevents the locking element from being accidentally unlocked due to factors such as vibration, greatly enhancing the stability of the lock. Traditional elastic locking pieces and simple snap-on locking elements are particularly susceptible to accidental opening due to transport vibrations, resulting in mislocking. However, the present invention fundamentally prevents mislocking by restricting the guide mating portion with the guide limiter.

[0022] Since the locking member is locked by the engaging force of the locking assembly, when the locking member is in the unlocked state, the engaging force of the locking assembly must be overcome to switch to the locked state, thereby achieving the unlocked hold function. To unlock, one only needs to overcome the engaging force of the locking assembly, manually twist the locking member to rotate it to the unlocked state, and then release the grip. The locking member will then automatically remain unlocked. To relock, the locking member can be directly driven by the guide limiter to complete the locking. Compared to the prior art method of using a spring to drive the locking member to lock, the present invention effectively solves the problem of the prior art in which the unlocked hold function cannot be achieved, and is more convenient to operate.

[0023] 2. The snap-fit ​​fixing assembly of the present invention can switch between at least two snap-fitting modes. The locking member can switch to at least two corresponding locking states depending on the snap-fitting mode, and its position relative to the first rail varies in each locking state. This feature allows the locking member to adapt to different locking slot configurations, greatly broadening the product's application range, meeting diverse usage needs, and enhancing the product's versatility and market competitiveness.

[0024] During the changeover process, the position and shape of the locking elements and the snap-fit ​​fixing components remain unchanged, nor does the specific shape of the guide stop. Because the guide stop is stamped from the second rail toward the first rail, the changeover only requires repositioning the guide stop on the stamping die. This design simplifies the changeover process, reduces difficulty, saves time and costs, and improves production efficiency, enabling companies to quickly respond to market changes and flexibly adjust production strategies.

[0025] 3. The present invention utilizes a snap-fitting element, with the engaging portion being a slot. The locking element is provided with a latching hole, and the snap-fitting element is locked within the latching hole. By rotating the snap-fitting element to overcome the friction between the latching hole and the locking hole, it can be easily switched to different fixed positions. This design provides a variety of fixing methods for the product, allowing the snap-fitting element's fixed position to be flexibly adjusted according to different usage scenarios and needs, greatly enhancing the product's functionality and practicality, and meeting the user's operational requirements under different working conditions.

[0026] The outer wall of the engaging member is provided with a card block, and the locking member is provided with a plurality of positioning grooves around the engaging hole, with the card block placed in the positioning groove. When the engaging member is in different fixed states, the card block is correspondingly located in different positioning grooves. The positioning groove plays a precise positioning role. On the one hand, it ensures that the engaging member remains stable after switching to a specific fixed state and will not be easily displaced by external factors, thereby improving the reliability and stability of the fixation. On the other hand, it provides the user with clear operational feedback, making the switching process more intuitive and convenient, greatly improving the operating experience and efficiency, and reducing repeated operations and adjustment time caused by inaccurate positioning.

[0027] 4. The guide-limiting portion of the present invention alternately features several guide segments and several displacement compensation segments. The guide segments extend obliquely relative to the sliding direction of the first rail. This unique design cleverly utilizes the force transfer from the inclined surface to precisely rotate the locking element to the locked state during the sliding motion of the first rail. When the locking element is locked, the guide mating portion moves toward the displacement compensation segment. The displacement compensation segment, by restraining the guide mating portion, effectively limits the locking element's rotation toward the unlocked state.

[0028] Given that errors are inevitable in the length manufacturing process of the first rail and the second rail, in a conventional structure, if the locking member is switched to a locked state before the first rail has fully slid into the second rail, the guide fitting portion will abut against the inclined portion of the guide limit portion, thereby restricting the first rail from sliding toward the second rail, causing it to become stuck and unable to fully slide into the first rail. However, the present invention provides a displacement compensation section extending along the sliding direction of the first rail. After the locking member is driven to a locked state, the guide fitting portion can move back and forth along the sliding direction of the first rail on the displacement compensation section. This enables the first rail to adaptively adjust according to the actual manufacturing error to smoothly complete the sliding and fully slide into the second rail, effectively compensating for the adverse effects of manufacturing errors, avoiding problems such as device jamming and poor operation due to manufacturing errors, and improving the compatibility and reliability of the device.

[0029] The alternating arrangement of guide and displacement compensation sections in this invention organically combines locking control, preventing accidental unlocking, and adaptively compensating for manufacturing errors. This integrated design ensures the device maintains optimal operation under various operating conditions, reduces malfunctions and problems caused by component mismatches, lowers maintenance costs and operational complexity, significantly improves the device's overall performance and stability, and extends its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein: Figure 1 Schematic diagram of the first rail sliding out of the second rail when the locking groove is a "J"-shaped groove in the present invention; Figure 2 Schematic diagram of the first rail sliding into the second rail when the locking groove is a "J"-shaped groove in the present invention; Figure 3 For the present invention Figure 2 A partial enlarged view of Figure 4 It is a partial schematic diagram of the state where the first rail slides into the second rail in the present invention; Figure 5 This is a partial schematic diagram after the second track is hidden in the present invention Figure 1 ; Figure 6 This is a partial schematic diagram after the second track is hidden in the present invention Figure 2 ; Figure 7 This is a schematic diagram of the engaging member being in the second engaging position when the lock groove is a "J"-shaped groove in the present invention; Figure 8 This is a schematic diagram of the engaging member being in the unlocking position when the lock groove is a "J"-shaped groove in the present invention; Figure 9 Schematic diagram of the card slot in the present invention; Figure 10 This is a side view of the first rail sliding into the second rail in the present invention; Figure 11 Schematic diagram of the guide and limiting member in the present invention; Figure 12 Schematic diagram of the locking member in the present invention; Figure 13 Schematic diagram of the engaging member in the present invention; Figure 14 A partial schematic diagram of the present invention when the lock groove is a "V" groove Figure 1 ; Figure 15 A partial schematic diagram of the present invention when the lock groove is a "V" groove Figure 2 ; Figure 16 This is a schematic diagram of the locking member being in the unlocking position when the locking groove is a V-shaped groove in the present invention; Figure 17 Schematic diagram of the I-nail in the present invention.

[0031] Description of reference numerals: 1. First rail; 11. Locking slot; 12. Engaging slot; 121. First engaging protrusion; 122. Second engaging protrusion; 123. Unlocking position; 124. First engaging position; 125. Second engaging position; 2. Second rail; 21. Guide limit member; 22. Guide limit slot; 23. Guide limit wall; 231. First guide section; 232. First displacement compensation section; 233. Second guide section; 234. Second displacement compensation section; 3. Locking member; 31. Rivet; 32. Guide shaft; 33. First positioning slot; 34. Second positioning slot; 4. Engaging member; 41. Block; 42. Slot; 5. I-nail; 51. Head; 52. Middle section; 53. Tail. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are greatly simplified and use non-precise ratios, and are only used to facilitate and clearly illustrate the embodiments of the present invention.

[0033] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] Example 1 See Figures 1 to 17The core of this invention is to provide a quick-lock structure for equipment slide rails, used to connect equipment to a first rail 1. The first rail 1 is slidably connected to a second rail 2. The second rail 2 can be connected to other rails to expand and connect the rail system, or it can be directly installed on the rack to serve as the basic support structure for equipment sliding. The first rail 1 is mainly used to connect to the equipment to be installed, providing a sliding guide for the equipment.

[0035] The equipment slide rail quick lock structure includes a locking unit and a connecting piece. The locking unit is arranged between the first rail 1 and the second rail 2. The connecting piece is arranged on the equipment. The locking unit locks the connecting piece to lock the equipment on the first rail 1.

[0036] In actual application scenarios, to ensure stable and smooth sliding of the equipment, a set of first rails 1 and second rails 2 are symmetrically arranged on both sides of the equipment, and a connector is connected to each side of the equipment, and each side of the equipment is connected to the corresponding first rail 1 through a connector. In this way, the equipment can be easily withdrawn from the interior of the rack for maintenance, inspection, or operation by sliding between the first and second rails 1 and 2; it can also be smoothly retracted into the rack for storage and protection, greatly improving the convenience and flexibility of equipment use.

[0037] For ease of understanding, in this embodiment, the end closer to the operator is defined as the proximal end, and the end away from the operator is defined as the distal end. When the first rail 1 slides toward the proximal end relative to the second rail 2, it can slide out of the second rail 2, and when the first rail 1 slides toward the distal end relative to the second rail 2, it can slide onto the second rail 2.

[0038] The locking unit includes a locking slot 11, a locking member 3, a guide limit member 21 and a snap-fit ​​fixing assembly. The locking slot 11 is opened on the first rail 1, and the locking slot 11 is open at one end in the width direction of the first rail 1. The connecting member is arranged therein through the opening of the locking slot 11; the locking member 3 is rotatably connected to the first rail 1 and is located on one side of the locking slot 11; the snap-fit ​​fixing assembly is arranged between the locking member 3 and the first rail 1.

[0039] In this embodiment, the connecting member is specifically an I-shaped nail 5, which includes a head 51, a middle portion 52, and a tail portion 53. The diameter of the middle portion 52 is smaller than that of the head 51 and tail 53, and the tail 53 is connected to the equipment. The width of the locking groove 11 is greater than the diameter of the middle portion 52, and the middle portion 52 enters the locking groove 11 from the open end of the locking groove 11. The head 51 and tail 53 are respectively located on either side of the locking groove 11, and the width of the locking groove 11 is smaller than the diameter of the head 51 on at least the side away from the opening. The first rail 1 is provided with side walls on the upper and lower sides. The opening of the locking groove 11 passes through the side wall on the upper side of the first rail 1, and a clearance space is also provided on the side wall on the side of the locking groove 11 to allow the head 51 of the I-shaped nail 5 to pass through and enter the inner side of the locking groove 11 away from the equipment. When the middle portion 52 of the I-shaped nail 5 moves in the locking groove 11 to a position where the width of the locking groove 11 is smaller than the diameter of the head 51, the head 51 of the I-shaped nail 5 is limited by the locking groove 11 and cannot move toward the device side, that is, the device is limited.

[0040] The locking piece 3 is rotatably connected to the inner wall of the first rail 1 through a rivet 31, and the locking piece 3 is located on the side of the lock groove 11 close to the distal end. When the head 51 of the I-shaped nail 5 moves to the side of the lock groove 11 away from its opening, the locking piece 3 rotates to abut against the head 51 or rotates to the moving path of the head 51 to prevent the middle portion 52 from leaving the open end of the lock groove 11, thereby locking the I-shaped nail 5 in the lock groove 11.

[0041] The shape of the locking slot 11 is not limited in this embodiment and can be Figure 8 The "J" slot shown, Figure 16 The "V" groove shown, etc.

[0042] The locking and fixing assembly is configured to be switchable between at least two locking modes, and when respectively in at least two locking modes, the locking member 3 can be switched from the unlocked state to the corresponding at least two locked states; when the locking member 3 is in the unlocked state, the I-shaped nail 5 can enter or leave the lock groove 11; when in the locked state, the locking member 3 is locked to the first rail 1 through the locking and fixing assembly, and the locking member 3 limits the I-shaped nail 5 to be locked in the lock groove 11.

[0043] The guide stopper 21 protrudes toward the first rail 1. In this embodiment, the guide stopper 21 is stamped from the second rail 2 toward the first rail 1. The guide stopper 21 is disposed on the second rail 2 and is provided with a guide stopper portion. The guide stopper portion is inclined and extends toward the distal end. The locking member 3 is provided with a guide mating portion. When the first rail 1 slides toward the second rail 2, the guide stopper portion is located in the guide mating portion's movement path. When the guide mating portion moves to abut against the guide stopper portion, it drives the locking member 3 to rotate, and the guide mating portion moves along the guide stopper portion to switch the locking member 3 from the unlocked state to the locked state. After the first rail 1 slides to the predetermined position, the guide stopper portion restricts the guide mating portion to prevent the locking member 3 from rotating toward the unlocked state. Particularly during transportation, traditional elastic locking pieces and simple snap-on locking members are easily accidentally opened due to transportation vibrations, resulting in mislocking. However, the present invention fundamentally prevents mislocking by restricting the guide mating portion with the guide stopper portion.

[0044] The locking assembly of the present invention can be switched between at least two locking modes. The locking member 3 can be switched to at least two corresponding locking states according to the locking mode, and the position relative to the first rail 1 varies in different locking states. This feature allows the locking member 3 to adapt to different locking groove 11 shapes. Because the final locking position of the I-pin 5 within the locking groove 11 varies along the length of the first rail 1 with different locking groove shapes, the locking member 3 needs to be rotated to different positions to lock the I-pin 5.

[0045] Furthermore, during the redesign process, the position and shape of the locking member 3 and the locking and fixing assembly do not need to be changed, nor does the specific shape of the guide stopper 21. Because the guide stopper 21 is stamped from the second rail 2 toward the first rail 1, redesigning only requires changing the mold position of the guide stopper 21 on the stamping die. This design simplifies the redesign process, reduces the difficulty of redesigning, saves time and costs, and improves production efficiency, enabling companies to quickly respond to market changes and flexibly adjust production strategies.

[0046] The snap-fit ​​assembly includes a snap-fit ​​portion and a snap-fit ​​portion, respectively, disposed on the locking member 3 and the first rail 1. The snap-fit ​​portion is disposed on the snap-fit ​​portion and can be snap-fitted thereto. The snap-fit ​​portion is movably disposed on the locking member 3 and is configured to switch between at least two fixed positions relative to the locking member 3. The snap-fit ​​portion extends along the snap-fit ​​portion's rotational trajectory and is located on the side of the lock slot 11 near the distal end. The snap-fit ​​portion can move along the snap-fit ​​portion when the locking member 3 rotates.

[0047] The engaging portion is provided with at least two engaging positions. When the engaging portion is in at least two fixed states, it can be moved and engaged in the corresponding at least two engaging positions. The number of engaging modes of the engaging and fixing assembly corresponds to the number of fixed states of the engaging portion and the number of engaging positions of the engaging and fixing portion. When the engaging and fixing assembly is in different engaging modes, the engaging portion is in the corresponding fixed state.

[0048] Specifically, the engaging portion is the engaging member 4, and the engaging portion is the slot 12. In different fixed states, the engaging member 4 has different dimensions in the width direction of the slot 12. The slot 12 is provided on one side of the lock slot 11. The slot 12 is provided with an unlocking position 123 and various engaging positions in sequence from the end away from the lock slot 11 to the end closer to the lock slot 11. Engaging channels are provided between adjacent unlocking positions 123 and engaging positions, as well as between adjacent engaging positions. The width of each engaging channel gradually decreases as it approaches the lock slot 11.

[0049] The dimension of the engaging member 4 in the width direction of the slot 12 in each fixed state is greater than the width of the corresponding engaging channel. The engaging member 4 is able to pass through the engaging channel and enter the corresponding engaging position by overcoming the friction force generated by the elastic deformation between the engaging member 4 and the engaging channel.

[0050] Furthermore, the card slot 12 is provided with a locking protrusion on at least one side of the inner wall at the locking channel, and the locking member 4 passes over the locking protrusion to enter the corresponding locking position. In this embodiment, the card slot 12 is provided with a locking protrusion on each of the inner walls on both sides of the locking channel.

[0051] Furthermore, the widths of the unlocking position 123 and each engaging position gradually decrease in the direction approaching the locking slot 11. In addition to the engaging protrusion, the width of the entire engaging slot 12 in the direction approaching the locking slot 11 also gradually decreases. This allows the locking member 3 to be restricted by the slot wall of the engaging slot 12 after reaching the first locked state, preventing the engaging member 4 from further rotating toward the locking slot 11. This further limits the position and prevents the locking member 3 from excessively rotating. Because in some locking slots 11, the locking member 3 does not abut against the I-pin 5 when in the locked state, so it is necessary to limit the locking member 3. Although the slot width at the next engaging channel is smaller than the slot width at the previous engaging channel, there is still a risk of the engaging member 4 squeezing through. Therefore, by gradually reducing the width of the engaging slot 12 in the direction approaching the locking slot 11, the engaging member 4 can be better limited. When the engaging member 4 moves to a position where the slot width of the engaging slot 12 is smaller than its size, it is limited.

[0052] The locking member 3 is provided with a locking hole, and the engaging member 4 is locked in the locking hole. The engaging member 4 is rotated by overcoming the friction between the locking hole to switch it to a different fixed state.

[0053] Furthermore, a card block 41 is provided on the outer wall of the peripheral side of the engaging member 4, and the locking member 3 is provided with a plurality of positioning grooves on the peripheral side of the card hole. The card block 41 is provided in the positioning groove, and when the engaging member 4 is in different fixed states, the card block 41 is in different positioning grooves. The engaging member 4 is rotated by overcoming the friction force generated by the elastic deformation between the card block 41 and the inner wall of the card hole, so that the card block 41 enters different positioning grooves.

[0054] In the present invention, the engaging portion is a snap-fitting member 4, the engaging portion is a slot 12, and the locking member 3 is provided with a latching hole, into which the snap-fitting member 4 is locked. By rotating the snap-fitting member 4 to overcome the friction between the latching hole and the locking hole, it can be easily switched to different fixed positions. This design provides a variety of fixing methods for the product, allowing the fixing state of the snap-fitting member 4 to be flexibly adjusted according to different usage scenarios and needs, greatly enhancing the product's functionality and practicality, and meeting the user's operational requirements under different working conditions.

[0055] The outer wall of the engaging member 4 is provided with a block 41, and the locking member 3 is provided with a plurality of positioning grooves around the engaging hole, with the block 41 positioned within the positioning grooves. When the engaging member 4 is in different fixed states, the block 41 is correspondingly located in different positioning grooves. The positioning grooves provide precise positioning. On the one hand, they ensure that the engaging member 4 remains stable after switching to a specific fixed state and will not be easily displaced by external factors, thereby improving the reliability and stability of the fixation. On the other hand, they provide the user with clear operational feedback, making the switching process more intuitive and convenient, greatly improving the operating experience and efficiency, and reducing repeated operations and adjustment time caused by inaccurate positioning.

[0056] Furthermore, the slot 12 passes through the first rail 1, and the engaging member 4 is exposed through the slot 12 at the end away from the locking member 3. In addition, a straight groove 42 is formed at the end of the engaging member 4 away from the locking member 3, and the straight groove 42 can be used to conveniently twist and rotate the engaging member 4 with a screwdriver.

[0057] Furthermore, the guide limiter is provided with a plurality of guide segments and a plurality of displacement compensation segments. The guide segments are inclined relative to the sliding direction of the first rail 1 and extend toward the distal end, while the displacement compensation segments extend parallel to the sliding direction of the first rail 1. In the direction in which the first rail 1 slides toward the second rail 2, the plurality of guide segments and the plurality of displacement compensation segments are alternately arranged. When the locking member 3 is in the locked state, the guide mating portion moves to the displacement compensation segment.

[0058] When the guide fitting part abuts against the guide section, the guide section drives the locking member 3 to rotate, so that the guide fitting part rotates through the guide section and moves to the displacement compensation section; when the guide fitting part moves to the displacement compensation section, it can move back and forth along the sliding direction of the first rail 1.

[0059] The guide stopper 21 is provided with a guide stopper slot 22, which is open at one end near the proximal end. The guide stopper is a guide stopper wall 23, which is located on the side of the guide stopper slot 22 facing the opening. The guide mating portion enters the guide stopper slot 22 through the opening to abut against the guide stopper wall 23. The guide section and displacement compensation section are the respective wall sections of the guide stopper wall 23. In this embodiment, the guide mating portion is a guide shaft 32 located on the side of the locking member 3 facing the second rail 2.

[0060] The guide-limiting wall 23 of the present invention is alternately provided with a plurality of guide segments and a plurality of displacement compensation segments. The guide segments extend obliquely relative to the sliding direction of the first rail 1. This unique design cleverly utilizes the force transmission of the inclined surface to precisely drive the locking member 3 to the locked state during the sliding of the first rail 1. When the locking member 3 is in the locked state, the guide shaft 32 moves to the displacement compensation segment. The displacement compensation segment, by restraining the guide shaft 32, effectively limits the rotation of the locking member 3 toward the unlocked state.

[0061] Given that errors are inevitable in the length manufacturing process of the first rail 1 and the second rail 2, in a conventional structure, if the locking member 3 has switched to the locked state before the first rail 1 has fully slid into the second rail 2, the guide shaft 32 will abut against the inclined portion of the guide limit wall 23, thereby restricting the first rail 1 from sliding toward the second rail 2, causing it to become stuck and unable to fully slide into the first rail 1. However, the present invention provides a displacement compensation section extending along the sliding direction of the first rail 1. After the locking member 3 is driven to the locked state, the guide shaft 32 can move back and forth along the sliding direction of the first rail 1 on the displacement compensation section. This enables the first rail 1 to adaptively adjust according to the actual manufacturing error to smoothly complete the sliding and fully slide into the second rail 2, effectively compensating for the adverse effects of the manufacturing error, avoiding problems such as device jamming and poor operation caused by manufacturing errors, and improving the compatibility and reliability of the device.

[0062] The alternating arrangement of guide and displacement compensation sections in this invention organically combines locking control, preventing accidental unlocking, and adaptively compensating for manufacturing errors. This integrated design ensures the device maintains optimal operation under various operating conditions, reduces malfunctions and problems caused by component mismatches, lowers maintenance costs and operational complexity, significantly improves the device's overall performance and stability, and extends its service life.

[0063] See Figure 7 、 8, 12, 15, 16. In this embodiment, the locking assembly is configured to switch between two locking modes, namely a first locking mode and a second locking mode. The locking member 3 accordingly has two locking states, namely a first locking state and a second locking state. When in the first locking mode, the locking member 3 can be switched to the first locking state. When in the second locking mode, the locking member 3 can be switched to the second locking state.

[0064] See Figure 12 The locking member 3 is provided with two positioning grooves around the locking hole, namely a first positioning groove 33 and a second positioning groove 34.

[0065] See Figure 9 The card slot 12 is provided with two engaging positions, namely a first engaging position 124 and a second engaging position 125, and from the distal end to the proximal end, the card slot 12 is sequentially provided with an unlocking position 123, a first engaging position 124 and a second engaging position 125. A first engaging protrusion 121 is provided on the groove walls on both sides of the first engaging channel between the unlocking position 123 and the first engaging position 124; a second engaging protrusion 122 is provided on the groove walls on both sides of the second engaging channel between the first engaging position 124 and the second engaging position 125.

[0066] See Figure 11 The guide limiting wall 23 is provided with two guide sections and two displacement compensation sections, and from the proximal end to the distal end, they are the first guide section 231, the first displacement compensation section 232, the second guide section 233 and the second displacement compensation section 234.

[0067] See Figures 14 to 16 When the locking slot 11 is V-shaped, the locking assembly is in the first locking mode. The locking block 41 on the locking member 4 is located within the first positioning slot 33. The width of the locking member 4 in the locking slot 12 is greater than the distance between the two first locking protrusions 121. When the locking member 3 is in the first locked state, the locking member 4 moves from the unlocked position 123 over the two first locking protrusions 121 to the first engaging position 124, and the guide shaft 32 moves through the first guide section 231 to the first displacement compensation section 232.

[0068] See Figures 3 to 8When the locking slot 11 is a "J"-shaped slot, the locking assembly is in the second locking mode. The locking block 41 on the locking member 4 is located in the second positioning slot 34. The width of the locking member 4 in the locking slot 12 is smaller than the distance between the two first locking protrusions 121 and larger than the distance between the two second locking protrusions 122. When the locking member 3 is in the second locked state, the locking member 4 moves from the unlocked position 123 to the first engaged position 124, over the two second engaging protrusions 122, and into the second engaged position 125. The guide shaft 32 moves through the first guide section 231, the first displacement compensation section 232, and the second guide section 233 to the second displacement compensation section 234.

[0069] The card slot 12 at the unlocking position 123 is arranged obliquely downward and obliquely toward the distal end, so that when the locking member 3 is in the unlocking state and the engaging member 4 is in the unlocking position 123, the gravity in the locking member 3 is obliquely downward and obliquely toward the distal end, so that the locking member 3 can be pressed against the distal groove wall of the card slot 12 by gravity to maintain the unlocking state, so that when the engaging fixing assembly is in the second engaging mode, the engaging member 4 will not move to the first engaging position 124.

[0070] The working process of the present invention is further described below: When the locking groove 11 is a "V"-shaped groove, in the initial state, the first rail 1 slides out of the second rail 2, the locking member 3 is in the unlocked state, the engaging member 4 is in the unlocked position 123 in the engaging groove 12, and the engaging block 41 on the engaging member 4 is arranged in the first positioning groove 33.

[0071] The I-shaped nail 5 enters from the opening at the upper end of the locking groove 11, and the head 51 and tail 53 of the I-shaped nail 5 are respectively located on both sides of the locking groove 11. The middle part 52 of the I-shaped nail 5 moves in the locking groove 11, and the head 51 moves to the side of the locking groove 11 away from its opening.

[0072] Then slide the first rail 1 toward the far end. When the guide shaft 32 on the locking member 3 moves to abut against the guide limit wall 23, the guide limit wall 23 drives the locking member 3 to rotate to the locked state. The locking member 3 rotates to abut against the head 51 or rotates to the moving path of the head 51 to prevent the middle part 52 from leaving the open end of the locking groove 11, so as to lock the I-shaped nail 5 in the locking groove 11. At the same time, the engaging member 4 passes over the two first engaging protrusions 121 from the unlocking position 123 to the first engaging position 124, and the guide shaft 32 moves to the first displacement compensation section 232 through the first guide section 231.

[0073] When the locking slot 11 is a "J"-shaped slot, in the initial state, the first rail 1 slides out of the second rail 2, the locking member 3 is in the unlocked state, the engaging member 4 is in the unlocked position 123 in the slot 12, and the block 41 on the engaging member 4 is arranged in the second positioning slot 34.

[0074] The I-shaped nail 5 enters from the opening at the upper end of the locking groove 11, and the head 51 and tail 53 of the I-shaped nail 5 are respectively located on both sides of the locking groove 11. The middle part 52 of the I-shaped nail 5 moves in the locking groove 11, and the head 51 moves to the side of the locking groove 11 away from its opening.

[0075] Then slide the first rail 1 toward the far end. When the guide shaft 32 on the locking member 3 moves to abut against the guide limit wall 23, the guide limit wall 23 drives the locking member 3 to rotate to the locked state. The locking member 3 rotates to abut against the head 51 or rotates to the moving path of the head 51 to prevent the middle part 52 from leaving the open end of the lock groove 11, so as to lock the I-shaped nail 5 in the lock groove 11. At the same time, the engaging member 4 passes through the first engaging position 124 from the unlocking position 123 and crosses the two second engaging protrusions 122 to enter the second engaging position 125. The guide shaft 32 moves to the second displacement compensation section 234 through the first guide section 231, the first displacement compensation section 232, and the second guide section 233.

[0076] When unlocking, the first rail 1 slides out of the second rail 2 toward the proximal end, and then the locking piece 3 is manually bent to the unlocked state to unlock the I-shaped nail 5, and the I-shaped nail 5 can leave from the opening at the upper end of the locking groove 11.

[0077] In the locked state, the locking member 3 is secured to the first rail 1 by means of a snap-fit ​​assembly, thereby locking the connector within the locking slot 11. Locking is achieved through the snap-fitting force of the snap-fit ​​assembly, thus achieving a spring-free design. Furthermore, the high strength of the locking member 3 further enhances locking reliability.

[0078] The present invention relies on the guide limit wall 23 to drive the locking member 3 from the unlocked state to the locked state. When the lock is switched to the locked state and the first rail 1 is retracted into the second rail 2, the guide limit wall 23 effectively restricts the rotation of the locking member 3 toward the unlocked state by limiting the guide shaft 32. This fundamentally prevents the locking member 3 from being accidentally unlocked due to factors such as vibration, greatly enhancing the stability of the lock.

[0079] Since the locking member 3 is locked by the snap-fitting force of the snap-fitting assembly, when the locking member 3 is in the unlocked state, the snap-fitting force of the snap-fitting assembly must be overcome to switch to the locked state, thereby achieving the unlocked hold function. To unlock, one only needs to overcome the snap-fitting force of the snap-fitting assembly, manually twist the locking member 3 until it rotates to the unlocked state, and then release the grip. The locking member 3 will then automatically remain unlocked. To relock, the locking member 3 can be directly driven by the guide limit wall 23 to complete the locking. Compared to the prior art method of using a spring to drive the locking member 3 to lock, the present invention effectively solves the problem of the prior art in which the unlocked hold function cannot be achieved, and is more convenient to operate.

[0080] Example 2 Another core of the present invention is to provide a server slide rail, comprising the device slide rail quick lock structure of embodiment 1. The device in this embodiment is a server, and the chassis of the server is installed on the slide rail through the device slide rail quick lock structure.

[0081] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they still fall within the scope of protection of the present invention.

Claims

1. A quick-lock structure for a device slide rail, used for connecting a device to a first rail, wherein the first rail is slidably connected to the second rail, characterized in that: The device comprises a locking unit and a connecting piece, wherein the locking unit is provided between the first rail and the second rail, the connecting piece is provided on the device, and the locking unit locks the connecting piece to lock the device on the first rail; The locking unit includes a locking groove, a locking member, a guide limit member, and a snap-fit ​​fixing assembly. The locking groove is formed on the first rail, and one end of the locking groove is open in the width direction of the first rail. The connecting member is disposed therein through the opening of the locking groove. The locking member is rotatably connected to the first rail and is located on one side of the locking groove. The snap-fit ​​fixing assembly is disposed between the locking member and the first rail. The locking and fixing assembly is configured to be switchable between at least two locking modes, and when in at least two of the locking modes, the locking member can be switched from an unlocked state to corresponding at least two locked states; when the locking member is in the unlocked state, the connecting member can enter or leave the locking slot; When in the locked state, the locking member is fixed to the first rail via the locking assembly, and the locking member limits and locks the connecting member in the locking groove; The guide limiter is provided on the second rail and is provided with a guide limiter portion, the guide limiter portion is obliquely extended, and the locking member is provided with a guide matching portion. When the first rail slides toward the second rail, the guide limiter portion is located on the moving path of the guide matching portion. When the guide matching portion moves to abut against the guide limiter portion, the locking member is driven to rotate, and the guide matching portion moves along the guide limiter portion to switch the locking member from the unlocked state to the locked state. After the first rail slides to a predetermined position, the guide limiter portion limits the rotation of the locking member toward the unlocked state by limiting the guide matching portion.

2. The equipment slide rail quick lock structure according to claim 1, characterized in that: The snap-fitting assembly comprises a snap-fitting portion and a snap-fitting portion respectively provided on the locking member and the first rail, wherein the snap-fitting portion is provided on the snap-fitting portion and can be snap-fitted and fixed thereto; The engaging portion is movably provided on the locking member, and the engaging portion is configured to switch between at least two fixed states relative to the locking member; the engaging fitting portion extends along a rotation trajectory of the engaging portion, and the engaging portion can move along the engaging fitting portion when the locking member rotates; The engaging portion is provided with at least two engaging positions, and when the engaging portion is in at least two fixed states, it can be moved and engaged in the corresponding at least two engaging positions respectively; The number of the engaging modes of the engaging fixing assembly corresponds to the number of the fixed states of the engaging portion and the number of the engaging positions of the engaging fitting portion; when the engaging fixing assembly is in different engaging modes, the engaging portion is in the corresponding fixed state.

3. The equipment slide rail quick lock structure according to claim 2, characterized in that: The engaging portion is a engaging piece, and the engaging fitting portion is a slot. In different fixed states, the engaging piece has different dimensions in the width direction of the slot. The card slot is provided on one side of the lock slot, and the card slot is provided with an unlocking position and each of the engaging positions in sequence from an end away from the lock slot to an end close to the lock slot, and engaging channels are provided between adjacent unlocking positions and engaging positions and between adjacent engaging positions, and the width of each of the engaging channels gradually decreases in a direction close to the lock slot; The dimension of the engaging member in the width direction of the slot in each of the fixed states is greater than the width of the corresponding engaging channel, and the engaging member is enabled to pass through the engaging channel and enter the corresponding engaging position by overcoming the friction force generated by the elastic deformation between the engaging member and the engaging channel.

4. The equipment slide rail quick lock structure according to claim 3, characterized in that: The clamping slot is provided with a clamping protrusion on at least one side inner wall of the clamping channel, and the clamping member passes over the clamping protrusion to enter the corresponding clamping position.

5. The equipment slide rail quick lock structure according to claim 3, characterized in that: In a direction approaching the locking slot, the widths of the unlocking position and each of the engaging positions gradually decrease.

6. The equipment slide rail quick lock structure according to claim 3, characterized in that: The locking member is provided with a locking hole, and the engaging member is locked in the locking hole. The engaging member is rotated by overcoming the friction between the locking member and the locking hole to switch to a different fixed state.

7. The equipment slide rail quick lock structure according to claim 6, characterized in that: A card block is provided on the outer wall of the peripheral side of the engaging member, and the locking member is provided with a plurality of positioning grooves on the peripheral side of the engaging hole. The card block is provided in the positioning groove, and when the engaging member is in different fixed states, the card block is in different positioning grooves. The engaging member is rotated by overcoming the friction force generated by the elastic deformation between the card block and the inner wall of the engaging hole, so that the card block enters different positioning grooves.

8. The equipment slide rail quick lock structure according to claim 1, characterized in that: The guide limiting portion is provided with a plurality of guide sections and a plurality of displacement compensation sections, wherein the guide sections are arranged to extend obliquely relative to the sliding direction of the first rail, and the displacement compensation sections are arranged to extend along the sliding direction of the first rail; In the direction in which the first rail slides toward the second rail, a plurality of guide segments and a plurality of displacement compensation segments are alternately arranged in sequence, and when the locking member is in the locked state, the guide matching portion moves to the displacement compensation segment; When the guide fitting part abuts against the guide section, the guide section drives the locking member to rotate, so that the guide fitting part rotates through the guide section and moves to the displacement compensation section; when the guide fitting part moves to the displacement compensation section, it can move back and forth along the sliding direction of the first rail.

9. The equipment slide rail quick lock structure according to claim 1 or 8, characterized in that: The guide limit piece protrudes toward the first rail, and a guide limit groove is provided on the guide limit piece, and the guide limit groove is open toward one end of the first rail in the sliding direction relative to the second rail. The guide limit portion is a guide limit wall, and the guide limit wall is provided on the groove wall of the guide limit groove toward the side of the guide limit groove. The guide matching portion enters the guide limit groove from the opening thereof to achieve abutment with the guide limit wall.

10. The equipment slide rail quick lock structure according to claim 9, characterized in that: The guide limiter is formed by punching the second rail toward the first rail.

11. The equipment slide rail quick lock structure according to claim 1, characterized in that: The connecting member includes a head, a middle part and a tail part in sequence, the diameter of the middle part is smaller than that of the head and the tail, and the tail part is connected to the device; The width of the locking groove is greater than the diameter of the middle portion, the middle portion enters the locking groove from one end of the opening of the locking groove, the head portion and the tail portion are respectively located on both sides of the locking groove, and the width of the locking groove is less than the diameter of the head portion at least on the side away from the opening thereof; The locking member limits the head portion to prevent the middle portion from leaving the open end of the locking slot, thereby locking the connecting member in the locking slot.

12. A server slide rail, characterized in that: It comprises the equipment slide rail quick lock structure as described in any one of claims 1 to 11.

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