A module quick-locking and quick-unloading device, a case and a case assembly

Abstract

A modular quick-lock and quick-release device, chassis, and chassis assembly are disclosed, relating to the field of avionics equipment technology. The technical solution includes a housing, a first locking unit, and a second locking unit. The first locking unit includes a mounting block, a first puller and a second puller rotatably connected to both ends of the mounting block, a locking slider, and a hook. The second locking unit includes two guide rails respectively disposed on both sides of a receiving groove, a front slider sliding relative to the guide rails in a first direction, a middle slider sliding relative to the guide rails in a second direction, and a driving part for driving the front slider to slide. When the front slider presses against the middle slider, it causes the middle slider to move in the second direction. This invention improves upon existing quick-lock and quick-release devices and chassis by simultaneously locking the modular quick-lock and quick-release device to the chassis using the first and second locking units. Furthermore, the locking and unlocking processes require no tools, resulting in high efficiency for disassembly or replacement.

Description

Technical Field

[0001] This utility model relates to the field of aviation electronic equipment technology, and in particular to a module quick-lock and quick-release device, a chassis and chassis assembly. Background Technology

[0002] The core of modular design in aircraft chassis lies in addressing the challenges of installation, expansion, maintenance, and reliability of highly integrated electronic devices in space-constrained and harsh aerospace applications through standardized, flexibly configurable physical frameworks, efficient and reliable connections, and active thermal management. This aims to improve the overall performance, applicability, and maintainability of avionics systems. Currently, modular chassis commonly employ a combination of locking strips and pullers to achieve module locking, unlocking, and removal. However, this design requires tools such as screwdrivers to tighten and unlock the locking strips. In scenarios where modules need frequent disassembly and replacement, such as hard drive or memory card replacements, where more efficient module disassembly without tools is required, the above design no longer meets the demands. Utility Model Content

[0003] To address the problem that existing module locking and unlocking methods in current technical solutions cannot achieve tool-free and efficient disassembly or replacement, this utility model provides a module quick-lock and quick-unlock device, a chassis, and a chassis assembly.

[0004] This utility model provides the following technical solution: a module quick-lock and quick-release device, which can be inserted into a chassis and locked to the chassis, the module quick-lock and quick-release device comprising: The housing has a receiving slot for installing modules; The first locking unit includes a mounting block disposed on the housing, a first puller and a second puller rotatably connected to both ends of the mounting block, and a locking slider that slides relative to the second puller; a hook is provided on the side of the mounting block away from the housing; a slot is provided at the first end of the first puller, and a guide groove is provided on the side wall of the slot; the first end of the second puller extends into the slot and is provided with a sliding shaft slidably connected to the guide groove, and a locking groove is also provided at the first end of the second puller, the locking groove having an opening corresponding to the hook; the locking slider extends into the locking groove and has a through groove corresponding to the locking groove; a spring is also provided between the locking slider and the second puller; the second ends of the first puller and the second puller are far apart from each other and each has a protrusion. The second locking unit includes two guide rails respectively disposed on both sides of the receiving groove, a front slider that slides relative to the guide rails in a first direction, a middle slider that slides relative to the guide rails in a second direction, and a driving part for driving the front slider to slide; the front slider has a wedge-shaped part disposed at one end facing the middle slider, the middle slider cooperates with the wedge-shaped part, and when the front slider squeezes the middle slider, it causes the middle slider to move in the second direction; the driving part is an eccentric wheel disposed on the side of the first puller and the second puller facing the guide rails.

[0005] Preferably, the box body further includes a cover for closing the receiving slot.

[0006] Preferably, the mounting block has pin holes at both ends, and each pin hole has a pin shaft. The first puller and the second puller are rotatably connected to the two pin shafts respectively.

[0007] Preferably, the locking slider is further provided with a toggle button.

[0008] Preferably, the second puller includes a base plate, a side plate, and a locking cover plate, the base plate, the side plate, and the locking cover plate forming the locking groove; the locking slider is also provided with a limit groove, and the locking cover plate is provided with a limit post that slides relative to the limit groove.

[0009] Preferably, the guide rail is provided with a first stud at one end facing the mounting block, the first stud is provided with a connecting hole for insertion with the pin, the front slider is provided with a through hole that slides relative to the first stud, and the first stud is also slidably connected to a pad, the pad being disposed between the front slider and the drive unit.

[0010] Preferably, the cross-section of the guide rail is T-shaped, and the cross-sections of the front slider, middle slider, and rear slider are all C-shaped.

[0011] Preferably, the second locking unit further includes a rear slider that slides relative to the guide rail in a first direction, the middle slider is disposed between the front slider and the rear slider, and the rear slider is also provided with a wedge-shaped portion for squeezing the middle slider to slide in a second direction at the end facing the middle slider; the guide rail is also provided with a second stud at the end away from the mounting block, the second stud is slidably connected to a sleeve, and a compression spring is provided between the sleeve and the second stud.

[0012] A chassis is provided with a slot for insertion into a module quick-lock and quick-release device. Anti-reverse blocks are provided on both sides of the slot opening, and the anti-reverse blocks are provided with anti-reverse grooves for locking protrusions.

[0013] A chassis assembly includes a module quick-lock and quick-release device and a chassis.

[0014] The beneficial effects of this utility model are: it improves the existing quick-lock and quick-unlock device and chassis, and uses the first and second locking units to simultaneously complete the two locking of the module quick-lock and quick-unlock device and chassis, and the locking and unlocking process does not require the use of tools, and the disassembly or replacement efficiency is high. Attached Figure Description

[0015] Figure 1 A three-dimensional diagram of one embodiment of the module quick-lock and quick-unlock device.

[0016] Figure 2 This is a cross-sectional view of one embodiment of the module quick-lock and quick-release device.

[0017] Figure 3 This is a schematic diagram of one embodiment of the first puller.

[0018] Figure 4 This is a schematic diagram of one embodiment of the second puller.

[0019] Figure 5 This is a schematic diagram of one embodiment of the locking slider.

[0020] Figure 6 This is a schematic diagram of the locking state of one embodiment of the first locking unit.

[0021] Figure 7 This is a schematic diagram of the unlocked state of one embodiment of the first locking unit.

[0022] Figure 8 This is a schematic diagram of one embodiment of the second locking unit.

[0023] Figure 9 This is a cross-sectional view of one embodiment of the second locking unit.

[0024] Figure 10 This is a schematic diagram of the locking state of one embodiment of the second locking unit.

[0025] Reference numerals: 10. Box body; 11. Receiving groove; 12. Cover plate; 13. Wing plate; 20. First locking unit; 21. Mounting block; 211. Pin; 22. Hook; 221. Head; 222. Inclined surface; 23. First puller; 231. Slot; 232. Guide groove; 233. Protrusion; 24. Second puller; 241. Base plate; 242. Side plate; 243. Locking cover plate; 244. Sliding shaft; 245. Locking groove; 246. Protrusion 25. Locking slider; 251. Through groove; 252. Compression spring; 253. Toggle button; 254. Limit groove; 30. Second locking unit; 31. Guide rail; 311. First stud; 312. Pad; 313. Second stud; 314. Sleeve; 315. Compression spring; 32. Front slider; 33. Middle slider; 34. Rear slider; 35. Drive unit; 351. Top pressure unit; 40. Chassis; 41. Slot; 42. Anti-reverse block; 43. Anti-reverse groove. Detailed Implementation

[0026] The embodiments of this utility model will be described in more detail below with reference to the accompanying drawings and reference numerals, so that those skilled in the art can implement them after reading this specification. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0027] Example 1

[0028] This utility model provides a modular quick-lock and quick-release device, which can be inserted into the chassis and locked to the chassis. The quick-lock and quick-release device includes a housing 10, a first locking unit 20 and a second locking unit 30.

[0029] Please refer to Figure 1 , 2 The housing 10 is provided with a receiving groove 11, in which the module can be bolted. The receiving groove 11 is also bolted with a cover plate 12 for closing the receiving groove 11 and protecting the module inside. The first locking unit 20 and the second locking unit 30 are both provided in the housing 10.

[0030] The first locking unit 20 includes a mounting block 21, a hook 22, a first puller 23, a second puller 24, and a locking slider 25.

[0031] Please refer to Figure 6The housing 10 is bolted to a mounting block 21. A hook 22 is provided on the side of the mounting block 21 facing away from the housing 10. The hook 22 has an inverted L-shaped head 221 on the side facing away from the mounting block, used to hold the locking slider 25 to prevent it from disengaging from the hook 22. The head 221 also has an inclined surface 222 for pushing the locking slider 25 to slide. Pin holes are provided at both ends of the mounting block 21, and pin shafts 211 are installed in the pin holes. The first puller 23 and the second puller 24 are rotatably connected to the two pin shafts 211 respectively.

[0032] Please refer to Figure 3 , 6 The first puller 23 is provided with a through hole that is rotatably connected to the pin 211. The first end of the first puller 23 faces the second puller 24 and is provided with a slot 231. Both sides of the slot 231 are provided with guide grooves 232, which extend along a curve to accommodate the movement trajectory of the first and second pullers during unlocking and avoid interference. The second end of the first puller 23 is away from the second puller 24 and is provided with a protrusion 233.

[0033] Please refer to Figure 4 , 6 The second puller 24 is provided with a pin hole for rotatable connection with the pin shaft 211. The first end of the second puller 24 faces the first puller 23 and is inserted into its slot 231. Its first end includes a base plate 241, a side plate 242, a locking cover plate 243, and a sliding shaft 244 that extends into and slidably connects with the guide groove 232. The base plate 241, side plate 242, and locking cover plate 243 form a locking groove 245, which also has an opening for the locking slider 25 to slide and an opening corresponding to the hook 22. The second end of the second puller 24 is away from the first puller 23 and is provided with a protrusion 246.

[0034] Please refer to Figure 4 , 5 6. The locking slider 25 is slidably connected to the second puller 24. One end of the locking slider 25 extends into the locking groove 245 and is provided with a through groove 251 corresponding to the locking groove 245. A compression spring 252 is provided between the end of the locking slider 25 and the locking groove 245. In other embodiments, a tension spring may also be provided between the locking slider 25 and the second puller 24. The other end of the locking slider 25 is outside the locking groove 245 and is provided with a toggle button 253. The toggle button 253 is provided with an arrow indicating the pressing direction when unlocking. The locking slider 25 is also provided with a limit groove 254. The locking cover plate 243 is provided with a limit post that extends into the limit groove 254 and slides relative to the limit groove 254, limiting the sliding stroke of the locking slider 25. The locking slider 25 is provided with an inclined surface or curved surface on the side facing the mounting block 21, so that the hook 22 can push the locking slider 25 to slide when it enters the through groove 251.

[0035] The mounting block 21, the first puller 23, and the second puller 24 form a linkage mechanism, which, together with the hook 22 and the locking slider 25, completes the initial locking and unlocking of the module quick-lock / unlock device and the chassis. After inserting the module quick-lock / unlock device into the chassis slot, the first end of the second puller 24 is pressed down, causing the hook 22 to enter the locking groove 245 and the through groove 251, and pushing the locking slider 25 to slide. When the hook 22 is fully inserted, the locking slider 25 is engaged with the bottom of the hook head 221 under the action of the compression spring 252. At the same time, the sliding shaft 244 slides to the left end of the guide groove 232, causing the first end of the first puller 23 to press down, thereby locking the hook 22 with the first and second pullers. In the above state, the protrusion 233 at the second end of the first puller 23 and the protrusion 246 at the second end of the second puller 24 are both raised and engaged in the anti-reverse groove 43 at the opening of the slot 41, completing the initial locking. The locking state is as follows. Figure 6 As shown. During unlocking, pressing the toggle button 253 overcomes the pressure of the compression spring 252, causing the locking slider 25 to slide out of the hook 22. Then, the first and second pullers are lifted upwards, and the protrusions 233 and 246 disengage from the anti-reverse groove 43, completing the unlocking process. The unlocked state is as shown. Figure 7 As shown.

[0036] The second locking unit 30 includes a guide rail 31, a front slider 32, a middle slider 33, a rear slider 34, and a drive unit 35 for driving the front slider 32 to slide.

[0037] Please refer to Figure 1 , 2 The box body 10 extends to both sides to form wing plates 13, and each of the two wing plates 13 is bolted to two guide rails 31. Please refer to... Figure 8 Both guide rails 31 are slidably connected to a front slider 32, a middle slider 33, and a rear slider 34. The front slider 32 and rear slider 34 slide relative to the guide rails 31 along a first direction, while the middle slider 33 slides relative to the guide rails 31 in a second direction. Correspondingly, when the front and rear sliders are reset, they can slide in the opposite direction of the first direction, and when the middle slider is reset, it slides in the opposite direction of the second direction. The first direction is parallel to the length direction of the guide rails; in this embodiment, the first direction is perpendicular to the second direction. In this embodiment, the cross-sectional view of the middle slider 33 and the guide rails 31 is shown below. Figure 9 As shown, the cross-section of the guide rail 31 can be T-shaped, and the cross-section of the middle slider 33 can be C-shaped to prevent slippage. There is space between the guide rail 31 and the middle slider 33 to allow them to slide relative to each other in the second direction. If there are no limiting front and rear sliders, the middle slider 33 can slide relative to the guide rail in the first direction, or in the second direction, or in any direction on the plane formed by the first and second directions. The front and rear sliders can also adopt a C-shaped structure.

[0038] In this embodiment, a second stud 313 is provided at the end of the guide rail 31 away from the mounting block 21. The second stud 313 is slidably connected to a sleeve 314, and a compression spring 315 is provided between the sleeve 314 and the second stud 313. The compression spring 315 can be a disc spring or a coil spring, which serves as a buffer and cooperates with the drive unit 35 to compress the centering slider 33. In other embodiments, the rear slider 34 can also be fixed to the end of the guide rail.

[0039] The middle slider 33 is positioned between the front slider 32 and the rear slider 34. Both the front slider 32 and the rear slider 34 have wedge-shaped portions facing the middle slider 33. Figure 8 As shown, the two wedge-shaped parts are lower at one end towards the middle slider 33 than at the other end. The two ends of the middle slider 33 are respectively engaged with the two wedge-shaped parts, so that when the front slider 32 slides towards the middle slider 33, it can squeeze the middle slider 33 to slide in the second direction.

[0040] Please refer to Figure 2 , 4 The driving part 35 is an eccentric wheel disposed on the side of the first puller 23 and the second puller 24 facing the guide rail 31. The radial distance R from the edge of the eccentric wheel to the rotation center of the first puller 23 and the second puller 24 is different, with the point where the radial distance R is the largest being the pressing part 351, and the radial distance R gradually decreasing on both sides of the pressing part 351; when the eccentric wheel rotates with the first end of the first and second pullers being pressed down or lifted, its pressing part 351 faces or deviates from the front slider 32; when the pressing part 351 faces the front slider 32, it squeezes the front slider 32 to make it slide, and when the pressing part 351 deviates from the front slider 32, it makes room for the front slider 32 to reset.

[0041] In this embodiment, the guide rail 31 has a first stud 311 at one end facing the mounting block 21. The first stud 311 has a connecting hole for insertion into the pin 211. The front slider 32 has a through hole that slides relative to the first stud 311. The first stud 311 is also slidably connected to a pad 312, which is disposed between the front slider 32 and the drive unit 35. In other embodiments, the pad 312 may be omitted, allowing the drive unit 35 to directly contact the front slider 32.

[0042] The second locking unit can synchronously complete the secondary locking and unlocking of the module quick-lock / quick-release device and the chassis with the first locking unit. After inserting the module quick-lock / quick-release device into the chassis slot 41, the first ends of the first and second pullers are pressed down to complete the locking of the first locking unit. At the same time, when the first ends of the first and second pullers are pressed down, the top pressing part 351 contacts the pad 312 and presses the pad 312 down, forcing the front slider 32 to slide in the first direction and squeezing the middle slider 33 to slide in the second direction, so that the middle slider 33 is pressed against the inner wall of the chassis slot 41, completing the secondary locking. Figure 10 As shown; when unlocking, lift the first end of the first and second pullers, the top pressure part 351 deviates from the pad 312, the middle slider 33 loses external pressure and is no longer locked to the inner wall of the chassis slot 41, and the module quick lock and quick release device can be pulled out from the chassis slot.

[0043] Example 2

[0044] This utility model also provides a chassis 40, please refer to Figure 4 , 10 The chassis 40 is provided with a slot 41 for insertion into a module quick-lock and quick-release device as described in Embodiment 1. Both sides of the opening of the slot 41 are provided with anti-reverse blocks 42. The anti-reverse blocks 42 are provided with anti-reverse grooves 43 for locking the protrusions located at the second ends of the first and second pullers when locking.

[0045] Example 3

[0046] This utility model also provides a chassis assembly, including the module quick-lock and quick-release device as described in Embodiment 1 and the chassis 40 as described in Embodiment 2.

[0047] The above describes one or more embodiments of this utility model in a relatively specific and detailed manner, but it should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A module quick-lock quick-release device, characterized in that, The module quick-lock and quick-release device can be inserted into the chassis and locked to the chassis. The module quick-lock and quick-release device includes: The housing has a receiving slot for installing modules; The first locking unit includes a mounting block disposed on the housing, a first puller and a second puller rotatably connected to both ends of the mounting block, and a locking slider that slides relative to the second puller; a hook is provided on the side of the mounting block away from the housing; a slot is provided at the first end of the first puller, and a guide groove is provided on the side wall of the slot; the first end of the second puller extends into the slot and is provided with a sliding shaft slidably connected to the guide groove, and a locking groove is also provided at the first end of the second puller, the locking groove having an opening corresponding to the hook; the locking slider extends into the locking groove and has a through groove corresponding to the locking groove; a spring is also provided between the locking slider and the second puller; the second ends of the first puller and the second puller are far apart from each other and each has a protrusion. The second locking unit includes two guide rails respectively disposed on both sides of the receiving groove, a front slider that slides relative to the guide rails in a first direction, a middle slider that slides relative to the guide rails in a second direction, and a driving part for driving the front slider to slide; the front slider has a wedge-shaped part disposed at one end facing the middle slider, the middle slider cooperates with the wedge-shaped part, and when the front slider squeezes the middle slider, it causes the middle slider to move in the second direction; the driving part is an eccentric wheel disposed on the side of the first puller and the second puller facing the guide rails.

2. A quick lock and quick release module as claimed in claim 1, wherein, The box also includes a cover for closing the receiving slot.

3. A quick lock and quick release module as claimed in claim 1, wherein, Both ends of the mounting block are provided with pin holes, and pins are provided in the pin holes. The first puller and the second puller are rotatably connected to the two pins respectively.

4. A quick lock and quick release module as claimed in claim 1, wherein, The locking slider is also equipped with a toggle button.

5. A quick lock and quick release module as claimed in claim 1, wherein, The second puller includes a base plate, a side plate, and a locking cover plate, which together form the locking groove. The locking slider is also provided with a limit groove, and the locking cover plate is provided with a limit post that slides relative to the limit groove.

6. A quick lock and quick release module as claimed in claim 3, wherein, The guide rail is provided with a first stud at one end facing the mounting block. The first stud is provided with a connecting hole for insertion into the pin shaft. The front slider is provided with a through hole that slides relative to the first stud. The first stud is also slidably connected to a pad, which is disposed between the front slider and the drive unit.

7. A quick lock and quick release module as claimed in claim 1, wherein, The guide rail has a T-shaped cross-section, and the front slider, middle slider, and rear slider all have a C-shaped cross-section.

8. A quick lock and quick release module as claimed in claim 1, wherein, The second locking unit also includes a rear slider that slides relative to the guide rail in a first direction. The middle slider is disposed between the front slider and the rear slider. The rear slider is also provided with a wedge-shaped portion for squeezing the middle slider to slide in a second direction at the end facing the middle slider. The guide rail is also provided with a second stud at the end away from the mounting block. The second stud is slidably connected to a sleeve, and a compression spring is provided between the sleeve and the second stud.

9. A cabinet, characterized in that The chassis is provided with a slot for insertion into a module quick-lock and quick-release device as described in any one of claims 1 to 8. Anti-reverse blocks are provided on both sides of the slot opening, and the anti-reverse blocks are provided with anti-reverse grooves for locking the protrusions.

10. A chassis assembly characterized by, It includes the module quick-lock and quick-release device as described in any one of claims 1 to 8 and the chassis as described in claim 9.

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