Drawing type case

Abstract

The invention relates to the technical field of servers, and discloses a drawing type case which comprises a shell, an internal mechanism and a locking mechanism. The internal mechanism is connected in the shell in a sliding manner; the locking mechanism comprises a lock body and a spring bolt, the lock body is arranged on the inner side wall of the shell, one end of the spring bolt is fixed to the internal mechanism, and the other end of the spring bolt is in sliding fit with the lock body; when the internal mechanism is subjected to pressing acting force for pressing the interior of the shell, the spring bolt has a locking state of being locked with the lock body; after the internal mechanism is subjected to the pressing acting force for pressing towards the interior of the shell again and is subjected to the drawing acting force for drawing towards the exterior of the shell, the spring bolt has an unlocking state for unlocking the lock body, the locking and unlocking process is simplified, locking and unlocking between the internal mechanism and the shell can be achieved without assistance of external tools, and the locking and unlocking efficiency is improved. And the locking and unlocking efficiency between the internal mechanism and the shell is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of servers, and in particular to a drawer-type chassis. Background Art

[0002] In the field of server technology, the design of traditional pull-out chassis often ignores the importance of chassis locks, making it difficult to effectively protect the chassis in scenarios where no one is on duty or where safety isolation is required. In order to ensure the safety of the pull-out chassis, some pull-out chassis are equipped with chassis locks, but pull-out chassis equipped with chassis locks require wrenches or special tools to lock and unlock, which is cumbersome to operate, not only increasing the complexity of the operation, but also significantly prolonging the operation time, directly affecting the operation and maintenance efficiency and user experience. Summary of the invention

[0003] In view of this, the present invention provides a pull-out chassis to solve the problem that a pull-out chassis equipped with a chassis lock needs to rely on a wrench or special tools for locking and unlocking, which is cumbersome to operate, not only increasing the complexity of the operation, but also significantly prolonging the operation time.

[0004] The present invention provides a pull-out type chassis, comprising a shell, an internal mechanism and a locking mechanism; the internal mechanism is slidably connected in the shell; the locking mechanism comprises a lock body and a lock tongue, the lock body is arranged on the inner side wall of the shell, one end of the lock tongue is fixed to the internal mechanism, and the other end is slidably matched with the lock body; wherein, when the internal mechanism is subjected to a pressing force pressing toward the inside of the shell, the lock tongue has a locked state locked with the lock body; after the internal mechanism is subjected to a pressing force pressing toward the inside of the shell again, when it is subjected to a pulling force pulling toward the outside of the shell, the lock tongue has an unlocked state unlocked with the lock body.

[0005] Beneficial effect: Since the lock tongue and the lock body are slidably matched, and the lock body is connected to the shell, and the lock tongue is connected to the internal mechanism, when the internal mechanism slides in the shell, the lock tongue and the lock body can be driven to slide relative to each other; only by simply pushing the sliding of the internal mechanism can the lock tongue be driven to achieve the switching of the state between the lock tongue and the lock body: when the internal mechanism is pushed for the first time, the internal mechanism drives the pressing lock tongue, and the lock tongue is in a locked state, and the lock tongue and the lock body are firmly locked, thereby achieving a safe locking between the internal mechanism and the shell, without the assistance of additional tools, greatly improving the efficiency and safety of the locking operation; when it needs to be unlocked, it is only necessary to push the internal mechanism again and then pull it outward, and the internal mechanism drives the pressing lock tongue, and the lock tongue and the lock body are quickly separated, and the internal mechanism and the shell are unlocked, and automatically switched to the unlocked state, and the whole process is efficient and convenient; not only does it simplify the process of locking and unlocking, but it also can achieve locking and unlocking between the internal mechanism and the shell without the assistance of external tools, significantly improving the efficiency of locking and unlocking between the internal mechanism and the shell.

[0006] In an optional embodiment, the lock body is provided with a first slide groove and a second slide groove; the first slide groove is arranged along a first direction, and the lock tongue is slidably matched with the first slide groove; the second slide groove is arranged along a second direction and is connected to the first slide groove; the first direction is the sliding direction of the internal mechanism, and the second direction is perpendicular to the first direction; the lock tongue comprises a body, a first locking block and a second locking block, the first locking block and the body are spaced apart along the first direction; the second locking block is slidably arranged between the body and the first locking block, and has a first position spaced apart from the first locking block, and a second position abutting against the first locking block; the locking mechanism also includes a locking member, which is elastically connected to the second slide groove, has a third position partially protruding from the second slide groove, and a fourth position located in the second slide groove; when the internal mechanism When the internal mechanism is subjected to a pressing force, the second locking block is in the first position, and the locking member is driven by the first locking block to switch between the third position, the fourth position and the third position in sequence, and abuts against the first locking block after switching, and the locking tongue is in the locked state; when the internal mechanism is subjected to a pressing force again, the second locking block is driven to move, and the locking member is driven by the second locking block to switch between the third position, the fourth position and the third position in sequence, and is fixed to the second locking block; when the internal mechanism is subjected to a pulling force, the first locking block moves and approaches the second locking block until the second locking block is in the second position, and the first locking block drives the second locking block to move synchronously, and the locking member is driven by the second locking block to switch from the third position to the fourth position, and the locking tongue is in the unlocked state.

[0007] Beneficial effects: Since the locking element is elastically connected in the second slide groove, the locking element has the ability to automatically adapt and adjust; under the action of the elastic force, when the user pushes the internal mechanism to apply a pressing action to the lock tongue, the locking element can automatically switch between the third position and the fourth position, and can cooperate with the lock tongue without additional operation; it not only simplifies user operation, but also significantly improves the locking efficiency of the locking mechanism. Since the sliding direction of the locking piece is perpendicular to the sliding direction of the internal mechanism, and the second locking block is slidably arranged between the body and the first locking block; when the second locking block maintains a spacing with the first locking block and is in the initial first position, it is only necessary to push the internal mechanism, and under the drive of the internal mechanism, the locking tongue is pushed toward the rear end of the shell body, and the locking piece can be embedded in the gap between the first locking block and the second locking block, and fit closely with the first locking block to complete the locking action, thereby ensuring the locking of the locking mechanism; when it is necessary to unlock the locking mechanism, the internal mechanism is continued to be pushed, and the locking tongue moves synchronously with the internal mechanism, at this time, the locking piece is separated from the first locking block and contacts with the second locking block, and under the action of the external pulling force, the first locking block slides in the direction close to the second locking block, so that the second locking block abuts against the first locking block in the second position; at this time, the first locking block slides toward the outside of the shell body at the same time as the second locking block, so that the locking mechanism can be unlocked, and the linkage of the first locking block and the second locking block is utilized to drive the entire locking tongue to slide toward the outside of the shell body; through the cooperation of the locking piece and the second locking block, the automatic locking and unlocking function of the locking mechanism is realized.

[0008] In an optional embodiment, a first groove is provided on a side of the second locking block close to the second sliding slot; when the portion of the locking member protruding from the second sliding slot extends into the first groove and abuts against the side wall of the first groove, the locking member and the second locking block are fixed to each other.

[0009] Beneficial effect: when the internal mechanism is pushed to press the lock tongue to unlock, the part of the locking piece that exceeds the second slide groove will be embedded in the first groove and fit tightly with the side wall of the first groove; then, driven by external force, the lock tongue slides smoothly toward the opening direction of the shell; in this process, due to the firm contact between the locking piece and the side wall of the first groove, the position of the second lock block is ensured to remain relatively stable and is not directly affected by the movement of the lock tongue; until the first lock block slides to a position in close contact with the second lock block, the two form a linkage, and then slide out smoothly together to complete the unlocking action; not only the accuracy and stability of unlocking are improved, but also the compactness of the overall structure and the smoothness of operation are enhanced.

[0010] In an optional embodiment, a first inclined surface is provided on the second locking block, the first inclined surface is located in the first groove, and is arranged on a side close to the first locking block; toward the side close to the first locking block, the distance between the first inclined surface and the axis of the second locking block gradually increases.

[0011] Beneficial effect: The setting of the first inclined surface not only ensures that the locking piece can slide smoothly into the first groove, but also ensures that the locking piece can slide out of the first groove easily and smoothly, thereby realizing the convenience and efficiency of the unlocking operation of the locking mechanism; the guidance of the first inclined surface also reduces the friction and wear between the second locking block and the locking piece, thereby extending the service life of the locking mechanism.

[0012] In an optional embodiment, in the second direction, the distance between the second locking block and the groove wall of the first sliding groove is smaller than the distance between the first locking block and the groove wall of the first sliding groove.

[0013] Beneficial effect: By limiting the distance between the second locking block and the groove wall of the first sliding groove, as well as the distance between the first locking block and the groove wall of the first sliding groove in the second direction, during the unlocking process of the locking mechanism, it is effectively prevented that the locking member accidentally engages with the side of the first locking block close to the second locking block, which not only avoids the unexpected separation between the first locking block and the second locking block, but also promotes the synchronization and coordination of the two during the unlocking process, so that the first locking block can slide out smoothly and unimpeded following the second locking block, making the unlocking process of the locking mechanism smoother.

[0014] In an optional embodiment, the locking tongue further includes a connecting rod, the main body and the first locking block are connected via the connecting rod, and the second locking block is slidably mounted on the connecting rod.

[0015] Beneficial effect: Through the setting of the connecting rod, not only the main body and the first locking block are firmly connected, but also a smooth sliding track is provided for the second locking block between the main body and the first locking block, which not only enhances the stability of the overall structure, but also enables the second locking block to slide within a specified range when needed.

[0016] In an optional embodiment, the locking tongue also includes a first elastic member, and a second groove is provided on the side of the first locking block close to the second locking block; the first elastic member is sleeved on the outer periphery of the connecting rod, one end is arranged in the second groove, and the other end abuts against the second locking block.

[0017] Beneficial effect: through the setting of the first elastic member, it can be ensured that during the locking process of the lock tongue and the lock body, the first locking block and the second locking block are in an automatic separation state, ensuring that the part of the locking member protruding from the second slide groove can slide into the gap between the first locking block and the second locking block, and continue to slide in the direction of the lock tongue, and finally tightly abut against the first locking block, thereby achieving a stable locking state; when the first locking block and the second locking block are close to each other, the first elastic member in a compressed state can be embedded in the second groove, thereby optimizing space utilization, effectively facilitating the smooth abutment between the first locking block and the second locking block, and facilitating the smooth unlocking of the locking mechanism.

[0018] In an optional embodiment, the locking tongue also includes a first elastic member, and a third groove is provided on the side of the second locking block close to the first locking block; the first elastic member is sleeved on the outer periphery of the connecting rod, one end is arranged in the third groove, and the other end is abutted against the first locking block.

[0019] Beneficial effect: through the setting of the first elastic member, it can be ensured that during the locking process of the lock tongue and the lock body, the first locking block and the second locking block are in an automatic separation state, ensuring that the part of the locking member protruding from the second sliding groove can slide into the gap between the first locking block and the second locking block, and continue to slide in the direction of the lock tongue, and finally tightly abut against the first locking block, thereby achieving a stable locking state; when the first locking block and the second locking block are close to each other, the first elastic member in a compressed state can be embedded in the third groove, thereby optimizing space utilization, effectively facilitating the smooth abutment between the first locking block and the second locking block, and facilitating the smooth unlocking of the locking mechanism.

[0020] In an optional embodiment, a limiting protrusion is provided on the connecting rod, the limiting protrusion is spaced apart from the main body, and the second locking block is provided between the limiting protrusion and the first elastic member.

[0021] Beneficial effect: Through the setting of the limiting protrusion, the second locking block is limited between the limiting protrusion and the first locking block, forming a stable and controllable sliding space, ensuring the stability and reliability of the second locking block during the sliding process, effectively preventing the misalignment or falling off caused by external force interference, and further improving the overall performance and safety of the locking mechanism; since the limiting protrusion is set at a distance from the main body, the lock tongue only needs to move a small distance to achieve the abutment and cooperation between the second locking block and the locking member, which not only significantly reduces the force required for the unlocking operation, but also greatly improves the response speed and use efficiency of the unlocking of the locking mechanism.

[0022] In an optional embodiment, a second elastic member is further included, one end of which is connected to the internal mechanism, and the other end of which is connected to the shell, and is suitable for applying a pulling force to the internal mechanism.

[0023] Beneficial effect: Through the setting of the second elastic member, the necessary elastic support is provided for the locking mechanism. When the lock tongue is in the locked state, the elastic force of the second elastic member ensures that the first locking block and the locking member can maintain a stable connection state, thereby effectively preventing the locking mechanism from being accidentally loosened or unlocked, and enabling the locking mechanism to maintain a stable locked state for a long time.

[0024] In an optional embodiment, it also includes a slider and two slide rails; the slider is arranged on the inner side wall of the shell and extends along the first direction; the two ends of the slider along the second direction are respectively protruding with protrusions, and in the third direction, the protrusions are spaced apart from the inner side wall of the shell; the third direction is perpendicular to both the first direction and the second direction; the two slide rails are spaced apart along the second direction and fixed to the outer side wall of the internal mechanism; the slide rail is provided with a third slide groove, and the two third slide grooves are arranged opposite to each other; the two protrusions are respectively located in the two third slide grooves and slidably cooperate with the third slide grooves; the lock body is fixed on the slider, and the lock tongue is located between the two slide rails and is connected to the internal mechanism through a connecting block; two second elastic members are provided, and the two second elastic members are respectively arranged on both sides of the lock tongue along the second direction; and one end of the second elastic member is connected to the slider, and the other end is connected to the connecting block.

[0025] Beneficial effect: Through the setting of the slider and the slide rail, the sliding cooperation between the internal mechanism and the shell is realized, and through the setting of the third slide groove and the protrusion, the card-connection limit of the internal mechanism is realized, which effectively prevents the internal mechanism from accidentally falling off from the shell during the sliding process, greatly improving the stability and safety of the overall structure.

[0026] In an optional embodiment, a second inclined surface is provided on the first locking block, the second inclined surface is located at an end of the first locking block away from the main body and is arranged on a side close to the locking member; toward the side close to the opening of the shell, the distance between the second inclined surface and the axis of the first locking block gradually increases.

[0027] Beneficial effect: Through the setting of the second inclined surface, the first locking block can smoothly slide toward the side of the locking member away from the shell opening, forming a stable locking relationship with the locking member; the guidance of the second inclined surface also reduces the friction and wear between the first locking block and the locking member, thereby extending the service life of the locking mechanism.

[0028] In an optional embodiment, a third inclined surface is provided on the locking member, and the third inclined surface is located at one end close to the locking tongue and is arranged on a side close to the opening of the shell; toward the side close to the opening of the shell, the distance between the third inclined surface and the locking tongue gradually increases.

[0029] Beneficial effect: Through the setting of the third inclined surface, the first locking block can slide smoothly toward the side of the locking component away from the shell opening, and the guidance of the third inclined surface also reduces the friction and wear between the first locking block and the locking component, thereby extending the service life of the locking mechanism; and the setting of the third inclined surface helps to push the second locking block to slide toward the side of the locking component away from the shell opening, thereby achieving the cooperation between the locking component and the first groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related technologies, the drawings required for use in the specific embodiments or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 This is a pull-out front view of an embodiment of the present invention;

[0032] Figure 2 It is a structural schematic diagram of the internal mechanism and the locking mechanism of an embodiment of the present invention;

[0033] Figure 3 for Figure 2 A is a partial enlarged schematic diagram;

[0034] Figure 4 It is a schematic structural diagram of the connection between the second elastic member, the slider, the slide rail and the internal mechanism according to an embodiment of the present invention;

[0035] Figure 5 It is a structural schematic diagram of a locking mechanism according to an embodiment of the present invention;

[0036] Figure 6 This is a structural schematic diagram of the connection between the lock tongue and the lock body according to an embodiment of the present invention;

[0037] Figure 7 2 is a cross-sectional view of a locking mechanism according to an embodiment of the present invention.

[0038] Description of reference numerals:

[0039] 1. Shell; 2. Internal mechanism; 3. Locking mechanism; 31. Lock body; 311. First slide groove; 312. Second slide groove; 313. Base; 314. Cover plate; 32. Lock tongue; 321. Body; 322. First locking block; 3221. Second groove; 3222. Second inclined surface; 323. Connecting rod; 3231. Limiting protrusion; 324. Second locking block; 3241. First groove; 3242. Third groove; 3243. First inclined surface; 325. First elastic member; 326. Connecting block; 33. Locking member; 331. Third inclined surface; 4. Second elastic member; 5. Slider; 51. Protrusion; 52. Embedded groove; 6. Slide rail; 61. Third slide groove. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0041] Combine the following Figures 1 to 7 , describing an embodiment of the present invention.

[0042] According to an embodiment of the present invention, on the one hand, a pull-out type chassis is provided, comprising a shell 1, an internal mechanism 2 and a locking mechanism 3; the internal mechanism 2 is slidably connected in the shell 1; the locking mechanism 3 comprises a lock body 31 and a lock tongue 32, the lock body 31 is arranged on the inner side wall of the shell 1, one end of the lock tongue 32 is fixed to the internal mechanism 2, and the other end is slidably matched with the lock body 31; wherein, when the internal mechanism 2 is subjected to a pressing force pressed toward the inside of the shell 1, the lock tongue 32 has a locked state locked with the lock body 31; after the internal mechanism 2 is subjected to a pressing force pressed toward the inside of the shell 1 again, when it is subjected to a pulling force pulled toward the outside of the shell 1, the lock tongue 32 has an unlocked state unlocked with the lock body 31.

[0043] Since the lock tongue 32 and the lock body 31 are slidably matched, and the lock body 31 is connected to the shell 1, and the lock tongue 32 is connected to the internal mechanism 2, when the internal mechanism 2 slides in the shell 1, the lock tongue 32 and the lock body 31 can be driven to slide relative to each other; only by simply pushing the internal mechanism 2 to slide, the lock tongue 32 can be driven to slide, and the state switching between the lock tongue 32 and the lock body 31 can be achieved: when the internal mechanism 2 is pushed for the first time, the internal mechanism 2 drives the pressing of the lock tongue 32, and the lock tongue 32 is in a locked state, and the lock tongue 32 and the lock body 31 are firmly locked, thereby achieving a safe connection between the internal mechanism 2 and the shell 1 The lock can be locked without the assistance of additional tools, which greatly improves the efficiency and safety of the locking operation; when unlocking is required, the internal mechanism 2 only needs to be pushed again and then pulled out, and the internal mechanism 2 drives the pressing lock tongue 32, and the lock tongue 32 and the lock body 31 are quickly separated, and automatically switch to the unlocked state, and the internal mechanism 2 and the shell 1 are unlocked, and the whole process is efficient and convenient; not only does it simplify the locking and unlocking process, but it also does not require the assistance of external tools to achieve locking and unlocking between the internal mechanism 2 and the shell 1, which significantly improves the efficiency of locking and unlocking between the internal mechanism 2 and the shell 1.

[0044] The lock body 31 is provided with a first slide groove 311 and a second slide groove 312; the first slide groove 311 is arranged along a first direction, and the lock tongue 32 is slidably matched with the first slide groove 311; the second slide groove 312 is arranged along a second direction and is communicated with the first slide groove 311; the first direction is the sliding direction of the internal mechanism 2, and the second direction is perpendicular to the first direction; the lock tongue 32 includes a body 321, a first locking block 322 and a second locking block 324, the first locking block 322 and the body 321 are spaced apart along the first direction; the second locking block 324 is slidably arranged between the body 321 and the first locking block 322, and has a first position spaced apart from the first locking block 322, and a second position abutting against the first locking block 322; the locking mechanism 3 also includes a locking member 33, the locking member 33 is elastically connected to the second slide groove 312, and has a third position partially protruding from the second slide groove 312, and a fourth position located in the second slide groove 312 When the inner mechanism 2 is subjected to a pressing force, the second locking block 324 is in the first position, and the locking member 33 is driven by the first locking block 322 to switch between the third position, the fourth position and the third position in sequence, and abuts against the first locking block 322 after switching, and the locking tongue 32 is in the locked state; when the inner mechanism 2 is subjected to a pressing force again, the second locking block 324 is driven to move, and the locking member 33 is driven by the second locking block 324 to switch between the third position, the fourth position and the third position in sequence, and is fixed to the second locking block 324; when the inner mechanism 2 is subjected to a pulling force, the first locking block 322 moves and approaches the second locking block 324 until the second locking block 324 is in the second position, and the first locking block 322 drives the second locking block 324 to move synchronously, and the locking member 33 is driven by the second locking block 324 to switch from the third position to the fourth position, and the locking tongue 32 is in the unlocked state.

[0045] Since the locking member 33 is elastically connected in the second slide groove 312, the locking member 33 has the ability to automatically adapt and adjust; under the action of the elastic force, when the user pushes the internal mechanism 2 to apply a pressing action to the locking tongue 32, the locking member 33 can automatically switch between the third position and the fourth position, and can cooperate with the locking tongue 32 without additional operation; it not only simplifies the user operation, but also significantly improves the locking efficiency of the locking mechanism 3. The locking member 33 is then moved into engagement with the first locking member 322, and the locking member 33 is brought into engagement with the first locking member 324. When the locking member 33 is in the unlocked state, the locking member 33 is in the unlocked state, and the locking member 33 is in the unlocked state.

[0046] In a specific implementation, the locking member 33 is slidably connected to the second sliding groove 312 via a third elastic member.

[0047] In a specific embodiment, one end of the first sliding groove 311 close to the body 321 is chamfered to facilitate the locking tongue 32 to slide into the first sliding groove 311 .

[0048] In a specific embodiment, the third elastic member is a spring.

[0049] In one embodiment, a first groove 3241 is provided on one side of the second locking block 324 close to the second slide groove 312; when the portion of the locking member 33 protruding from the second slide groove 312 extends into the first groove 3241 and abuts against the side wall of the first groove 3241, the locking member 33 and the second locking block 324 are fixed to each other.

[0050] When the internal mechanism 2 is pushed to press the lock tongue 32 to unlock, the portion of the locking piece 33 that exceeds the second slide groove 312 will be embedded in the first groove 3241 and fit tightly with the side wall of the first groove 3241; then, driven by an external force, the lock tongue 32 slides smoothly toward the opening direction of the shell 1; in this process, due to the firm contact between the locking piece 33 and the side wall of the first groove 3241, the position of the second lock block 324 remains relatively stable and is not directly affected by the movement of the lock tongue 32; until the first lock block 322 slides to a position in close contact with the second lock block 324, the two form a linkage, and then slide out smoothly together to complete the unlocking action; not only improves the accuracy and stability of unlocking, but also enhances the compactness of the overall structure and the smoothness of operation.

[0051] Preferably, a slideway is provided on the groove wall of the second slide groove 312, and the slideway extends along the second direction; a limit block is provided on the side of the locking member 33 close to the slideway, and the limit block is slidably set in the slideway; through the setting of the limit block and the slideway, it is ensured that the locking member 33 slides along the second direction in the second slide groove 312, and when the first locking block 322 or the second locking block 324 squeezes or abuts the locking member 33, the displacement of the locking member 33 in the first direction is avoided, thereby enhancing the overall stability and reliability of the locking mechanism 3 and extending the service life of the locking mechanism 3.

[0052] In one embodiment, a first inclined surface 3243 is provided on the second locking block 324, and the first inclined surface 3243 is located in the first groove 3241 and is arranged on a side close to the first locking block 322; toward the side close to the first locking block 322, the distance between the first inclined surface 3243 and the axis of the second locking block 324 gradually increases.

[0053] The setting of the first inclined surface 3243 not only ensures that the locking component 33 can slide smoothly into the first groove 3241, but also ensures that the locking component 33 can slide easily and smoothly out of the first groove 3241, thereby realizing the convenience and efficiency of the unlocking operation of the locking mechanism 3; the guidance of the first inclined surface 3243 also reduces the friction and wear between the second locking block 324 and the locking component 33, thereby extending the service life of the locking mechanism 3.

[0054] In one embodiment, in the second direction, the distance between the second locking block 324 and the groove wall of the first sliding groove 311 is smaller than the distance between the first locking block 322 and the groove wall of the first sliding groove 311 .

[0055] By limiting the distance between the second locking block 324 and the groove wall of the first sliding groove 311, as well as the distance between the first locking block 322 and the groove wall of the first sliding groove 311 in the second direction, during the unlocking process of the locking mechanism 3, the locking member 33 is effectively prevented from accidentally getting stuck with the side of the first locking block 322 close to the second locking block 324, which not only avoids the unexpected separation between the first locking block 322 and the second locking block 324, but also promotes the synchronization and coordination between the two during the unlocking process, so that the first locking block 322 can slide out smoothly and unimpeded following the second locking block 324, making the unlocking process of the locking mechanism 3 smoother.

[0056] In one embodiment, the locking tongue 32 further includes a connecting rod 323 , the body 321 and the first locking block 322 are connected via the connecting rod 323 , and the second locking block 324 is slidably mounted on the connecting rod 323 .

[0057] By setting the connecting rod 323, not only the main body 321 and the first locking block 322 are firmly connected, but also a smooth sliding track is provided for the second locking block 324 between the main body 321 and the first locking block 322, which not only enhances the stability of the overall structure, but also enables the second locking block 324 to slide within a specified range when needed.

[0058] In a specific embodiment, the body 321 and the connecting rod 323 are detachably connected by a dovetail joint, thereby achieving tool-free installation between the body 321 and the connecting rod 323 and facilitating quick connection and replacement between the body 321 and the connecting rod 323.

[0059] In one embodiment, the locking tongue 32 also includes a first elastic member 325, and a second groove 3221 is provided on the side of the first locking block 322 close to the second locking block 324; the first elastic member 325 is sleeved on the outer periphery of the connecting rod 323, one end is set in the second groove 3221, and the other end is abutted against the second locking block 324.

[0060] By setting the first elastic member 325, it can be ensured that during the locking process of the lock tongue 32 and the lock body 31, the first locking block 322 and the second locking block 324 are in an automatically separated state, ensuring that the portion of the locking member 33 protruding from the second sliding groove 312 can slide into the gap between the first locking block 322 and the second locking block 324, and continue to slide in the direction of the lock tongue 32, and finally tightly abut against the first locking block 322, thereby achieving a stable locked state; when the first locking block 322 and the second locking block 324 are close to each other, the first elastic member 325 in a compressed state can be embedded in the second groove 3221, thereby optimizing space utilization, effectively facilitating the smooth abutment between the first locking block 322 and the second locking block 324, and facilitating the smooth unlocking of the locking mechanism 3.

[0061] In one embodiment, the locking tongue 32 also includes a first elastic member 325, and a third groove 3242 is provided on the side of the second locking block 324 close to the first locking block 322; the first elastic member 325 is sleeved on the outer periphery of the connecting rod 323, one end is arranged in the third groove 3242, and the other end is abutted against the first locking block 322.

[0062] By setting the first elastic member 325, it can be ensured that during the locking process of the lock tongue 32 and the lock body 31, the first locking block 322 and the second locking block 324 are in an automatically separated state, ensuring that the portion of the locking member 33 protruding from the second sliding groove 312 can slide into the gap between the first locking block 322 and the second locking block 324, and continue to slide in the direction of the lock tongue 32, and finally tightly abut against the first locking block 322, thereby achieving a stable locked state; when the first locking block 322 and the second locking block 324 are close to each other, the first elastic member 325 in a compressed state can be embedded in the third groove 3242, thereby optimizing space utilization, effectively facilitating the smooth abutment between the first locking block 322 and the second locking block 324, and facilitating the smooth unlocking of the locking mechanism 3.

[0063] In a specific implementation, when no external force is applied, the elastic force of the first elastic member 325 can make the second locking block 324 and the first locking block 322 be in a state of being farthest apart.

[0064] In one embodiment, a limiting protrusion 3231 is disposed on the connecting rod 323 , the limiting protrusion 3231 is spaced apart from the body 321 , and the second locking block 324 is disposed between the limiting protrusion 3231 and the first elastic member 325 .

[0065] By setting the limiting protrusion 3231, the second locking block 324 is limited between the limiting protrusion 3231 and the first locking block 322, forming a stable and controllable sliding space, ensuring the stability and reliability of the second locking block 324 during the sliding process, and effectively preventing the misalignment or falling off caused by external force interference, further improving the overall performance and safety of the locking mechanism 3; since the limiting protrusion 3231 and the main body 321 are set at an interval, the lock tongue 32 only needs to move a small distance to achieve the abutment and cooperation between the second locking block 324 and the locking member 33, which not only significantly reduces the force required for the unlocking operation, but also greatly improves the response speed and use efficiency of the unlocking of the locking mechanism 3.

[0066] Specifically, the first elastic member 325 is a spring.

[0067] In one embodiment, a second elastic member 4 is further included, one end of the second elastic member 4 is connected to the internal mechanism 2 , and the other end of the second elastic member 4 is connected to the shell 1 , and is suitable for applying a pulling force to the internal mechanism 2 .

[0068] By setting the second elastic member 4, necessary elastic support is provided for the locking mechanism 3. When the lock tongue 32 is in the locked state, the elastic force of the second elastic member 4 ensures that the first locking block 322 and the locking member 33 can maintain a stable connection state, thereby effectively preventing the locking mechanism 3 from being accidentally loosened or unlocked, and enabling the locking mechanism 3 to maintain a stable locked state for a long time.

[0069] In one embodiment, it also includes a slider 5 and two slide rails 6; the slider 5 is arranged on the inner side wall of the shell 1 and extends along the first direction; the slider 5 is provided with protrusions 51 at both ends along the second direction, and in the third direction, the protrusions 51 are arranged at intervals from the inner side wall of the shell 1; the third direction is arranged perpendicular to both the first direction and the second direction; the two slide rails 6 are arranged at intervals along the second direction and fixed on the outer side wall of the internal mechanism 2; the slide rail 6 is provided with a third slide groove 61, and the two third slide grooves 61 are arranged opposite to each other; the two protrusions 51 are respectively located in the two third slide grooves 61 and slidably cooperate with the third slide grooves 61; the lock body 31 is fixed on the slider 5, the lock tongue 32 is located between the two slide rails 6, and is connected to the internal mechanism 2 through the connecting block 326; the second elastic member 4 is provided with two, and the two second elastic members 4 are respectively arranged on both sides of the lock tongue 32 along the second direction; and one end of the second elastic member 4 is connected to the slider 5, and the other end is connected to the connecting block 326.

[0070] By setting the slider 5 and the slide rail 6, the sliding cooperation between the internal mechanism 2 and the shell 1 is realized, and by setting the third slide groove 61 and the protrusion 51, the card-connection limit of the internal mechanism 2 is realized, which effectively prevents the internal mechanism 2 from accidentally falling off from the shell 1 during the sliding process, and greatly improves the stability and safety of the overall structure.

[0071] In a specific embodiment, the slider 5 is provided with an embedding groove 52 on one side close to the opening of the housing 1, and the lock body 31 is detachably connected to the embedding groove 52; the lock tongue 32 is located between the two slide rails 6, and the connecting block 326 is provided on the side away from the first locking block 322, the connecting block 326 is detachably connected to the internal mechanism 2, and in the second direction, both ends of the connecting block 326 are protruding from the body 321, and the portion of the connecting block 326 protruding from the body 321 is provided with a connecting groove; the two second elastic members 4 are respectively provided corresponding to the two connecting grooves, one end of the second elastic member 4 is provided in the connecting groove, and the other end is connected to the slider 5. By providing the embedding groove 52 on the slider 5, the installation and fixation of the lock body 31 is realized; and because the lock body 31 is detachably connected to the embedding groove 52, when the lock body 31 is damaged after long-term use, the lock body 31 can be directly removed from the slider 5 for replacement, which is convenient for disassembly and assembly of the lock body 31. A connecting block 326 is provided on the lock tongue 32 to connect the lock tongue 32 and the internal mechanism 2, thereby achieving close coordination between the two. A connecting groove is provided on the connecting block 326 as a connection point at one end of the second elastic member 4, so that the second elastic member 4 can be stably connected between the internal mechanism 2 and the slider 5.

[0072] In a specific embodiment, the elastic force of the first elastic member 325 is smaller than the elastic force of the third elastic member. During the unlocking process, it is ensured that the locking member 33 can always abut against the second locking block 324 during the movement of the first locking block 322 toward the second locking block 324, thereby ensuring that the position of the second locking block 324 remains relatively stable and is not directly affected by the movement of the lock tongue 32, thereby helping to achieve a tight abutment between the first locking block 322 and the second locking block 324.

[0073] In a specific embodiment, the elastic force of the second elastic member 4 is greater than the elastic force of the third elastic member. During the unlocking process, it is ensured that under the elastic force of the second elastic member 4, the locking member 33 can be disengaged from the second locking block 324, which helps the second elastic member 4 to pull the locking tongue 32 as a whole to slide toward the outside of the shell 1, thereby achieving unlocking between the internal mechanism 2 and the shell 1.

[0074] In a specific embodiment, the lock body 31 includes a base 313 and a cover plate 314, the first slide groove 311 and the second slide groove 312 are both arranged in the base 313, and the base 313 and the cover plate 314 are detachably connected by fasteners such as screws, so as to facilitate the installation of the lock tongue 32 and the locking member 33 in the base 313.

[0075] In a specific embodiment, the slider 5 is detachably connected to the housing 1 via fasteners such as screws.

[0076] Specifically, the second elastic member 4 is a spring.

[0077] In one embodiment, a second inclined surface 3222 is provided on the first locking block 322, and the second inclined surface 3222 is located at an end of the first locking block 322 away from the main body 321, and is arranged on a side close to the locking member 33; toward the side close to the opening of the shell 1, the distance between the second inclined surface 3222 and the axis of the first locking block 322 gradually increases.

[0078] By setting the second inclined surface 3222, the first locking block 322 can smoothly slide toward the side of the locking component 33 away from the opening of the shell 1, forming a stable locking relationship with the locking component 33; the guidance of the second inclined surface 3222 also reduces the friction and wear between the first locking block 322 and the locking component 33, thereby extending the service life of the locking mechanism 3.

[0079] In a specific embodiment, two second slide grooves 312 are provided, and the two second slide grooves 312 are relatively arranged on both sides of the first slide groove 311 along the second direction, and a locking component 33 is elastically connected in each second slide groove 312; and two first grooves 3241 are provided, and the two first grooves 3241 are respectively arranged on both sides of the second locking block 324 along the second direction; and second inclined surfaces 3222 are provided on both sides of the first locking block 322 along the second direction, and the two second inclined surfaces 3222 respectively correspond to the two locking components 33.

[0080] In one embodiment, a third inclined surface 331 is provided on the locking member 33, and the third inclined surface 331 is located at one end close to the locking tongue 32 and is arranged on a side close to the opening of the shell 1; toward the side close to the opening of the shell 1, the distance between the third inclined surface 331 and the locking tongue 32 gradually increases.

[0081] Through the setting of the third inclined surface 331, the first locking block 322 can slide smoothly toward the side of the locking component 33 away from the opening of the shell 1, and the guidance of the third inclined surface 331 also reduces the friction and wear between the first locking block 322 and the locking component 33, thereby extending the service life of the locking mechanism 3; and the setting of the third inclined surface 331 helps to push the second locking block 324 to slide toward the side of the locking component 33 away from the opening of the shell 1, thereby achieving the cooperation between the locking component 33 and the first groove 3241.

[0082] In a specific embodiment, when the internal mechanism 2 and the shell 1 are in a locked state, a gap is provided between the internal mechanism 2 and the rear of the shell 1, ensuring that the internal mechanism 2 has sufficient moving travel space during the unlocking process, thereby facilitating the unlocking of the internal mechanism 2.

[0083] The working principle of the present invention is:

[0084] When it is necessary to lock the internal mechanism 2, the internal mechanism 2 is pushed to slide into the shell 1, and the internal mechanism 2 drives the lock tongue 32 to slide into the shell 1. During this process, the body 321 drives the first locking block 322 and the second locking block 324 to slide into the shell 1 through the connecting rod 323. During the sliding process, the second inclined surface 3222 on the first locking block 322 contacts the third inclined surface 331 on the locking member 33. The locking member 33 is switched between the third position, the fourth position and the third position in sequence under the drive of the first locking block 322, and is inserted between the first locking block 322 and the second locking block 324 under the elastic force of the third elastic member. When the snapping sound of the locking piece 33 being inserted into the gap between the first locking block 322 and the second locking block 324 is heard, the pressing force applied to the internal mechanism 2 is canceled, and the second elastic member 4 gives the internal mechanism 2 a force to slide toward the outside of the shell 1, so that the internal mechanism 2 tightens the main body 321, and the main body 321 tightens the first locking block 322, and the side of the first locking block 322 close to the opening of the shell 1 abuts against the locking piece 33. Since the first locking block 322 is clamped by the locking piece 33, the internal mechanism 2, the main body 321 and the first locking block 322 are in a stable locked state under the action of the second elastic member 4, thereby realizing the locking of the internal mechanism 2 with the shell 1.

[0085] When it is necessary to unlock the internal mechanism 2, the internal mechanism 2 continues to be pushed toward the inside of the shell 1, and the internal mechanism 2 drives the main body 321 to slide toward the inside of the shell 1. The main body 321 drives the second locking block 324 and the first locking block 322 to slide toward the inside of the shell 1 through the connecting rod 323. During this process, the locking member 33 is switched in the third position, the fourth position and the third position in sequence under the drive of the second locking block 324, and is located in the first groove 3241 and fixed to the second locking block 324. Then the internal mechanism 2 is released, and the internal mechanism 2 slides toward the outside of the shell 1 under the action of the second elastic member 4. At this time, the internal mechanism 2 pulls the main body 321 to slide toward the outside of the shell 1, and the main body 321 pulls the connecting rod 323 to slide toward the outside of the shell 1. The connecting rod 323 pulls the first locking block 322 to slide toward the outside of the shell 1, and at this time the locking member 33 and the first groove 32 When the locking cam 33 is in the unlocked position, the locking cam 332 is in the unlocked position, and the first locking cam 332 is in the unlocked position, so that the locking cam 332 is unlocked and the locking cam 332 is unlocked.

[0086] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A pull-out chassis, characterized in that: include: Housing (1); An internal mechanism (2) slidably connected in the housing (1); A locking mechanism (3) comprising a lock body (31) and a lock tongue (32), wherein the lock body (31) is arranged on the inner wall of the housing (1), one end of the lock tongue (32) is fixed to the internal mechanism (2), and the other end is slidably matched with the lock body (31); When the internal mechanism (2) is subjected to a pressing force toward the inside of the shell (1), the lock tongue (32) is in a locked state with the lock body (31); after the internal mechanism (2) is subjected to a pressing force toward the inside of the shell (1) again, when it is subjected to a pulling force toward the outside of the shell (1), the lock tongue (32) is in an unlocked state with the lock body (31).

2. The drawer-type chassis according to claim 1, characterized in that: A first slide groove (311) and a second slide groove (312) are provided in the lock body (31); the first slide groove (311) is arranged along a first direction, and the lock tongue (32) slides and cooperates with the first slide groove (311); the second slide groove (312) is arranged along a second direction and communicates with the first slide groove (311); the first direction is the sliding direction of the internal mechanism (2), and the second direction is perpendicular to the first direction; The locking tongue (32) comprises a body (321), a first locking block (322) and a second locking block (324), wherein the first locking block (322) and the body (321) are spaced apart along the first direction; the second locking block (324) is slidably disposed between the body (321) and the first locking block (322), and has a first position spaced apart from the first locking block (322), and a second position abutting against the first locking block (322); The locking mechanism (3) further comprises a locking member (33), wherein the locking member (33) is elastically connected in the second slide groove (312), and has a third position partially protruding from the second slide groove (312), and a fourth position located in the second slide groove (312); When the internal mechanism (2) is subjected to a pressing force, the second locking block (324) is in the first position, and the locking member (33) is driven by the first locking block (322) to switch between the third position, the fourth position and the third position in sequence, and abuts against the first locking block (322) after switching, and the locking tongue (32) is in the locked state; when the internal mechanism (2) is subjected to a pressing force again, the second locking block (324) is driven to move, and the locking member (33) is driven by the second locking block (324) to switch between the third position, the fourth position and the third position in sequence. The first locking block (322) is switched between the third position, the fourth position and the third position, and is fixed to the second locking block (324); when the internal mechanism (2) is subjected to a pulling force, the first locking block (322) moves and approaches the second locking block (324) until the second locking block (324) is in the second position, and the first locking block (322) drives the second locking block (324) to move synchronously, and the locking member (33) is switched from the third position to the fourth position under the drive of the second locking block (324), and the locking tongue (32) is in the unlocked state.

3. The drawer-type chassis according to claim 2, characterized in that: A first groove (3241) is provided on one side of the second locking block (324) close to the second sliding groove (312); When the portion of the locking member (33) protruding from the second sliding groove (312) extends into the first groove (3241) and abuts against the side wall of the first groove (3241), the locking member (33) and the second locking block (324) are fixed to each other.

4. The drawer-type chassis according to claim 3, characterized in that: The second locking block (324) is provided with a first inclined surface (3243), the first inclined surface (3243) is located in the first groove (3241), and is arranged on a side close to the first locking block (322); towards the side close to the first locking block (322), the distance between the first inclined surface (3243) and the axis of the second locking block (324) gradually increases.

5. The drawer-type chassis according to claim 2, characterized in that: In the second direction, the distance between the second locking block (324) and the groove wall of the first sliding groove (311) is smaller than the distance between the first locking block (322) and the groove wall of the first sliding groove (311).

6. The drawer-type chassis according to claim 2, characterized in that: The locking tongue (32) further comprises a connecting rod (323), the body (321) and the first locking block (322) are connected via the connecting rod (323), and the second locking block (324) is slidably sleeved on the connecting rod (323).

7. The drawer-type cabinet according to claim 6, characterized in that: The locking tongue (32) further comprises a first elastic member (325), and a second groove (3221) is provided on one side of the first locking block (322) close to the second locking block (324); the first elastic member (325) is sleeved on the outer periphery of the connecting rod (323), one end of the first elastic member (325) is arranged in the second groove (3221), and the other end is in contact with the second locking block (324); And / or, the locking tongue (32) further includes a first elastic member (325), and a third groove (3242) is provided on a side of the second locking block (324) close to the first locking block (322); the first elastic member (325) is sleeved on the outer periphery of the connecting rod (323), one end of the first elastic member (325) is provided in the third groove (3242), and the other end abuts against the first locking block (322).

8. The drawer-type cabinet according to claim 7, characterized in that: The connecting rod (323) is provided with a limiting protrusion (3231), the limiting protrusion (3231) is spaced apart from the body (321), and the second locking block (324) is arranged between the limiting protrusion (3231) and the first elastic member (325).

9. The drawer-type cabinet according to any one of claims 2 to 8, characterized in that: It also comprises a second elastic member (4), one end of which is connected to the internal mechanism (2) and the other end of which is connected to the shell (1), and is suitable for applying a pulling force to the internal mechanism (2).

10. The drawer-type cabinet according to claim 9, characterized in that: Also includes: A slider (5) is arranged on the inner wall of the housing (1) and extends along the first direction; The slider (5) is provided with protruding blocks (51) at both ends along the second direction, and in the third direction, the protruding blocks (51) are spaced apart from the inner side wall of the housing (1); the third direction is perpendicular to both the first direction and the second direction; Two slide rails (6) are arranged at intervals along the second direction and fixed on the outer side wall of the internal mechanism (2); a third slide groove (61) is provided on the slide rail (6), and the two third slide grooves (61) are arranged opposite to each other; the two protrusions (51) are respectively located in the two third slide grooves (61) and are slidably matched with the third slide grooves (61); The lock body (31) is fixed on the slide block (5), and the lock tongue (32) is located between the two slide rails (6) and connected to the internal mechanism (2) via a connecting block (326); Two second elastic members (4) are provided, and the two second elastic members (4) are respectively arranged on both sides of the locking tongue (32) along the second direction; and one end of the second elastic member (4) is connected to the sliding block (5), and the other end is connected to the connecting block (326).

11. The drawer-type cabinet according to any one of claims 2 to 8, characterized in that: A second inclined surface (3222) is provided on the first locking block (322), and the second inclined surface (3222) is located at an end of the first locking block (322) away from the main body (321), and is arranged on a side close to the locking member (33); towards the side close to the opening of the shell (1), the distance between the second inclined surface (3222) and the axis of the first locking block (322) gradually increases.

12. The drawer-type cabinet according to any one of claims 2 to 8, characterized in that: The locking member (33) is provided with a third inclined surface (331), the third inclined surface (331) is located at one end close to the locking tongue (32), and is arranged on a side close to the opening of the shell (1); towards the side close to the opening of the shell (1), the distance between the third inclined surface (331) and the locking tongue (32) gradually increases.

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