CN109947205B - Mainboard extension fastener - Google Patents
Mainboard extension fastener Download PDFInfo
- Publication number
- CN109947205B CN109947205B CN201910212835.6A CN201910212835A CN109947205B CN 109947205 B CN109947205 B CN 109947205B CN 201910212835 A CN201910212835 A CN 201910212835A CN 109947205 B CN109947205 B CN 109947205B
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- rotating handle
- clamping
- hook
- handle
- bracket
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- 230000005489 elastic deformation Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
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Abstract
The invention discloses a mainboard extension fastening device.A first end of a rotating handle is provided with an elastic clamping tongue which is vertical to the length direction of the rotating handle and can generate elastic deformation; the elastic clamping tongue is convexly provided with a clamping hook which can be hooked and matched with the bracket; the second end of the rotating handle is provided with a plate clamping hook, and the plate clamping hook and the elastic clamping tongue are positioned on two opposite side surfaces of the rotating handle; the middle part of the rotating handle is rotationally connected with the bracket, and the first end and the second end of the rotating handle rotate around the rotating shaft; the clamping buckle is fixed on the main board and is provided with a clamping groove which is buckled with the board clamping hook; when in clamping, the rotating handle is rotated, so that the board card hook at the second end of the rotating handle extends into the clamping groove on the clamping buckle, meanwhile, the frame clamping hook at the first end is mutually clamped with the corresponding structure of the bracket, the two ends of the rotating handle are respectively clamped in a positioning way, the rotating handle is limited by the frame clamping hook at the first end to be incapable of rotating, and the main board and the bracket are mutually connected through the board clamping hook at the second end; the device simple structure, easy dismounting has the cost is reduced.
Description
Technical Field
The invention relates to the technical field of server equipment, in particular to a mainboard expansion and fastening device.
Background
U is a unit representing the external dimensions of the server and is an abbreviation for unit, and the dimensions of the server are specified in order to keep the server appropriately sized for placement on an iron or aluminum rack. The specified dimensions are the width (48.26cm ═ 19 inches) and height (multiples of 4.445 cm) of the server. The thickness is 4.445cm, 4.445cm for 1U and 8.89cm for 2 times 1U.
When a plurality of expansion cards are installed in a PCI support of a 2U server, a fastening device needs to be added to the PCI support for the reliability and stability of a system; as shown in fig. 1A, is a prior art fastener construction; fig. 1B is a structural view of a conventional fastener after assembly. The body 01 of the fastener is fixed on the PCI bracket 03 through two bolts 02, and the buckle 04 is fixed on the main board 05; set up fried dough twist screw 06 in the body 01, the knob 07 that the rotatory top set up makes fried dough twist screw 06 stretch out downwards, and buckle 04 dies fried dough twist screw 06 card, realizes the fastening. The reverse rotation twist screw 06 can be separated from the buckle to realize unlocking.
The structure comprises a plurality of parts, the structure is complex, the installation operation is complex, and the installation workload is increased; for those skilled in the art, how to design a fastener with simple structure and fast connection is a technical problem to be solved at present.
Disclosure of Invention
The invention provides a mainboard expansion fastening device which is simple in structure, convenient and fast to operate and capable of quickly disassembling and assembling a mainboard, and the specific scheme is as follows:
a mainboard expansion fastening device comprises a rotating handle and a clamping buckle;
the first end of the rotating handle is provided with an elastic clamping tongue, the elastic clamping tongue is perpendicular to the length direction of the rotating handle, and a frame clamping hook hooked with the support is convexly arranged on the elastic clamping tongue;
the second end of the rotating handle is provided with a plate clamping hook, and the plate clamping hook and the elastic clamping tongue are positioned on two side surfaces of the rotating handle, which are opposite to each other;
the clamping buckle is fixed on the main board, and a clamping groove buckled with the board clamping hook is formed in the clamping buckle;
the middle part of the rotating handle is rotatably connected with the bracket.
Optionally, a pressing block is arranged at the first end of the rotating handle, and the pressing block is positioned on the outer side of the elastic clamping tongue; the pressing block is provided with a pressing surface for increasing friction.
Optionally, an operating handle is arranged at the tail end of the elastic clamping tongue, and the operating handle is perpendicular to the elastic clamping tongue.
Optionally, an abutting block is convexly arranged on the surface of the rotating handle and is used for contacting with the outer surface of the bracket.
Optionally, the abutting block is a spring plate arranged on the rotating handle, and the spring plate is arc-shaped.
Optionally, a stop pin is convexly arranged on one side of the rotating handle close to the bracket, and the stop pin is located between the rotating shaft of the rotating handle and the plate hook.
Optionally, the snap fastener is provided with an external thread, and is fixedly connected with the main board through a thread.
Optionally, the width of the rotation handle tapers from the first end to the second end.
The invention provides a mainboard expansion fastening device, which is used for connecting a bracket with a mainboard and comprises a rotary handle and a clamping buckle, wherein an elastic clamping tongue is arranged at the first end of the rotary handle, and the elastic clamping tongue is vertical to the length direction of the rotary handle and can generate elastic deformation; the elastic clamping tongue is convexly provided with a clamping hook which can be hooked and matched with the bracket; the second end of the rotating handle is provided with a plate clamping hook, and the plate clamping hook and the elastic clamping tongue are positioned on two opposite side surfaces of the rotating handle; the middle part of the rotating handle is rotationally connected with the bracket, and the first end and the second end of the rotating handle rotate around the rotating shaft; the clamping buckle is fixed on the main board and is provided with a clamping groove which is buckled with the board clamping hook; when in clamping, the rotating handle is rotated, so that the board card hook at the second end of the rotating handle extends into the clamping groove on the clamping buckle, meanwhile, the frame clamping hook at the first end is mutually clamped with the corresponding structure of the bracket, the two ends of the rotating handle are respectively clamped in a positioning way, the rotating handle is limited by the frame clamping hook at the first end to be incapable of rotating, and the main board and the bracket are mutually connected through the board clamping hook at the second end; the device simple structure, easy dismounting has the cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1A is a prior art fastener construction;
FIG. 1B is a block diagram of a prior art fastener after assembly;
FIG. 2 is a structural view of the main board expansion fastening device provided by the present invention during assembly;
FIG. 3 is a schematic view of the structure of the rotation handle;
FIG. 4 is a cross-sectional view of the main board expansion fastening device of the present invention during assembly;
FIG. 5A is a schematic view of the rotary handle before it is fixed;
FIG. 5B is a schematic view of the fixed rotation handle;
fig. 5C is a partial structure view of the mutual matching of the rack hook and the bracket.
The figure includes:
the device comprises a rotating handle 1, an elastic clamping tongue 11, a frame clamping hook 12, a plate clamping hook 13, a top leaning block 14, an operating handle 15, a pressing block 16, a stop pin 17, a clamping buckle 2, a support 3 and a main plate 4.
Detailed Description
The core of the invention is to provide a mainboard extension fastening device which is simple in structure, convenient and fast to operate and capable of quickly dismounting and mounting a mainboard.
In order to make those skilled in the art better understand the technical solution of the present invention, the main board expansion fastening device of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 2, the main board expansion fastening device provided by the present invention includes a rotation handle 1 and a snap fastener 2, the snap fastener 2 is fixedly installed on the main board, the rotation handle 1 is rotatably connected to a bracket 3, the bracket 3 is a PCI bracket, and the main board is fixed on the bracket 3 through the rotation handle 1 and the snap fastener 2.
As shown in fig. 3, it is a schematic structural view of the rotary handle 1; the first end of the rotating handle 1 is provided with an elastic clamping tongue 11, the elastic clamping tongue 11 is vertical to the length direction of the rotating handle 1, and a frame clamping hook 12 hooked with the support 3 is convexly arranged on the elastic clamping tongue 11; in fig. 3, the first end is located above, the second end is located below, the main body of the rotary handle 1 is vertically arranged, the upper portion of the rotary handle 1 is provided with the elastic latch 11, the elastic latch 11 transversely extends and protrudes out of the outer surface of the rotary handle 1, the elastic latch 11 is approximately perpendicular to the rotary handle 1, and the elastic latch 11 can elastically deform up and down as shown in the direction of fig. 3.
A frame hook 12 is convexly arranged at the tail end of the elastic latch 11, the frame hook 12 is used for hooking with the support 3 to realize locking, and as shown in fig. 3, the frame hook 12 is convexly arranged at the lower surface at the tail end of the elastic latch 11.
The second end of the rotating handle 1 is provided with a plate clamping hook 13, and the plate clamping hook 13 and the elastic clamping tongue 11 are positioned on two opposite side surfaces of the rotating handle 1; as shown in fig. 4, which is a cross-sectional structure view of the main board expansion fastening device of the present invention during assembly, the board hook 13 protrudes from the left side of the rotation handle 1, and the elastic latch 11 protrudes from the right side of the rotation handle 1.
The clamping buckle 2 is fixed on the main board 4, and a clamping groove buckled with the board card hook 13 is formed in the clamping buckle 2; as shown in fig. 4, the board hooks 13 can limit the upper and lower positions of the main board 4 after being inserted into the slots, and the main board 4 and the bracket 3 are relatively positioned by one, two or more rotating handles 1.
The middle part of the rotating handle 1 is rotatably connected with the bracket 3, and the board card hook 13 and the frame clamping hook 12 are respectively positioned at two sides of the rotary connection part; as shown in fig. 4, the board hook 13 is clamped with the main board 4, and the frame hook 12 is clamped with the bracket 3; when the rack hook 12 is hooked on the bracket 3, the rotation handle 1 can be limited from rotating; correspondingly, the board hook 13 limits the vertical position of the main board 4, so that the main board 4 is close to the bracket 3 and can not be separated from each other, and the installation of the main board is realized.
As shown in fig. 5A, which is a schematic structural diagram before the rotation handle 1 is fixed, the main board 4 is aligned with the bracket 3, the first end of the rotation handle 1 is far away from the bracket 3, and the board card hook 13 at the second end is far away from the snap fastener 2 on the main board; as shown in fig. 5B, which is a schematic structural view of the fixed rotary handle 1, the rotary handle 1 is close to the bracket 3, and the plate hook 13 and the snap fastener 2 are engaged with each other and extend into the slot of the snap fastener 2, and the bracket hook 12 provided at the first end of the rotary handle 1 is hung on the bracket 3 to complete the assembly; as shown in fig. 5C, which is a partial structure diagram of the mutual matching between the rack hook 12 and the bracket 3, the rack hook 12 cannot move laterally after being buckled, so as to ensure that the rotation handle 1 cannot rotate.
When the main board 4 is detached, as shown in fig. 4, the elastic latch 11 is lifted upwards to separate the rack hook 12 from the bracket 3, the rotating handle 1 can rotate normally, and the rotating handle 1 can be rotated reversely to unlock the main board 4 and the bracket 3.
The mainboard expansion and fastening device provided by the invention is simple in structure, only comprises the rotating handle 1 and the clamping buckle 2, is convenient to operate, can be quickly disassembled and assembled, improves the operating efficiency and reduces the cost.
The first end of the rotation handle 1 is provided with a pressing block 16, the pressing block 16 is positioned outside the elastic clamping tongue 11, namely the pressing block 16 is positioned closer to the tail end of the rotation handle 1 than the elastic clamping tongue 11; the pressing block 16 is provided with a pressing surface for increasing friction, the pressing surface is the surface outside the pressing block 16, as shown in fig. 4, the pressing surface is an inclined surface, and forms a certain included angle with the length direction of the rotating handle 1, and is used for pressing by the hand of an operator; the convex edge structure is arranged on the pressing surface, so that the friction force between the pressing surface and the hand is increased, and the operation is more convenient.
Furthermore, the invention arranges an operating handle 15 at the end of the elastic latch 11, the operating handle 15 is vertical to the elastic latch 11; as shown in fig. 4, the cross section of the operating handle 15 is "L" shaped, and is convexly disposed on the upper surface of the elastic latch 11, so as to lift the operating force point of the elastic latch 11 upward, thereby facilitating the deformation of the elastic latch 11 to release the locking. The operating handle 15 is flush with the upper part of the pressing block 16, so that misoperation caused by accidental pressing of the operating handle 15 by external force is avoided.
On the basis of any one of the technical schemes and the mutual combination thereof, the invention convexly arranges the top leaning block 14 on the surface of the rotary handle 1, the top leaning block 14 and the elastic clamping tongue 11 are positioned on the same side surface, the top leaning block 14 is used for contacting with the outer surface of the bracket 3, when the rotary handle 1 is rotationally assembled, the top leaning block 14 firstly contacts with the surface of the bracket 3, the rotary handle 1 is continuously pressed to generate small-amplitude elastic deformation, the bracket clamping hook 12 is clamped with the bracket 3 in a matching way, and the clamping connection of the bracket clamping hook 12 and the bracket 3 can be more compact through the top leaning block 14.
Preferably, the abutting block 14 is a spring plate disposed on the rotating handle 1, as shown in fig. 4, the spring plate is arc-shaped, and after the spring plate contacts with the outer surface of the bracket 3, the spring plate is compressed and deformed to accumulate elastic potential energy, and after the clamping and locking of the bracket hook 12 and the bracket 3 are released, the spring plate is restored to the original state to generate kinetic energy, so that the first end of the rotating handle 1 automatically leaves away from the bracket 3, which facilitates the process of releasing the locking.
As shown in fig. 4, a stop pin 17 is convexly arranged on one side of the rotation handle 1 close to the bracket 3, the stop pin 17 is of a convex block structure, and the protruding direction of the stop pin 17 is the same as the protruding direction of the elastic latch 11; the stop pin 17 is positioned between the rotating shaft of the rotating handle 1 and the board card hook 13, the rotating handle 1 is automatically bounced after the locking is released, the stop pin 17 is in contact with the outer surface of the support 3 after the maximum angle is reached, the limiting effect is achieved, and the maximum included angle between the rotating handle 1 and the support 3 is limited.
Specifically, the snap fastener 2 is provided with external threads, the snap fastener 2 is fixedly connected with the main board 4 through threads, and the snap fastener 2 is provided with an annular clamping groove which is recessed circumferentially and is used for clamping the board hook 13.
The width of the rotating handle 1 is gradually reduced from the first end to the second end, the width of one end for operating and pressing is larger, the width of one end matched with the clamping buckle 2 is smaller, and the width of the other end is matched with the size of the clamping buckle 2.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The main board expansion fastening device is characterized by comprising a rotating handle (1) and a clamping buckle (2);
an elastic clamping tongue (11) is arranged at the first end of the rotating handle (1), the elastic clamping tongue (11) is perpendicular to the length direction of the rotating handle (1), and a frame clamping hook (12) hooked with the support (3) is arranged on the elastic clamping tongue (11) in a protruding mode;
a plate hook (13) is arranged at the second end of the rotating handle (1), and the plate hook (13) and the elastic clamping tongue (11) are positioned on two side surfaces of the rotating handle (1) which are opposite to each other;
the clamping buckle (2) is fixed on the main board (4), and a clamping groove which is clamped with the board clamping hook (13) is formed in the clamping buckle (2);
the middle part of the rotating handle (1) is rotationally connected with the bracket (3);
the surface of the rotating handle (1) is convexly provided with an abutting block (14), and the abutting block (14) is used for contacting with the outer surface of the bracket (3);
the abutting block (14) is a spring piece arranged on the rotating handle (1), and the spring piece is arc-shaped.
2. The main plate expansion fastening device according to claim 1, characterized in that a pressing block (16) is arranged at the first end of the rotation handle (1), and the pressing block (16) is positioned outside the elastic latch (11); the pressing block (16) is provided with a pressing surface for increasing friction.
3. Main board expansion fastening device according to claim 2, characterized in that the distal end of the resilient latch (11) is provided with an operating handle (15), the operating handle (15) being perpendicular to the resilient latch (11).
4. The main board expansion fastening device according to claim 3, wherein a stop pin (17) is protruded from a side of the rotation handle (1) near the bracket (3), and the stop pin (17) is located between the rotation shaft of the rotation handle (1) and the board hook (13).
5. The main board expansion fastening device according to claim 3, wherein the snap fastener (2) is provided with an external thread to be screwed and fixed with the main board (4).
6. Main plate expansion fastening device according to claim 3, characterized in that the width of the rotation handle (1) tapers from a first end to a second end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910212835.6A CN109947205B (en) | 2019-03-20 | 2019-03-20 | Mainboard extension fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910212835.6A CN109947205B (en) | 2019-03-20 | 2019-03-20 | Mainboard extension fastener |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109947205A CN109947205A (en) | 2019-06-28 |
| CN109947205B true CN109947205B (en) | 2021-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910212835.6A Active CN109947205B (en) | 2019-03-20 | 2019-03-20 | Mainboard extension fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109947205B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105907A (en) * | 2011-11-11 | 2013-05-15 | 鸿富锦精密工业(武汉)有限公司 | Expansion card fixing device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040218369A1 (en) * | 2003-04-30 | 2004-11-04 | Dean Ronald Paul | Screw-less circuit card mounting apparatus |
| US6970363B2 (en) * | 2003-11-26 | 2005-11-29 | Hewlett-Packard Development Company, L.P. | Expansion card support mechanism |
| CN204480123U (en) * | 2015-03-02 | 2015-07-15 | 营邦企业股份有限公司 | The expansion board fixed structure of a kind of clip and industrial computer |
| CN208156584U (en) * | 2018-04-24 | 2018-11-27 | 联想(北京)有限公司 | Fixed structure and electronic equipment |
| CN208172680U (en) * | 2018-05-08 | 2018-11-30 | 常田启文 | A kind of computer motherboard having Fast Installation and stable structure |
-
2019
- 2019-03-20 CN CN201910212835.6A patent/CN109947205B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105907A (en) * | 2011-11-11 | 2013-05-15 | 鸿富锦精密工业(武汉)有限公司 | Expansion card fixing device |
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| Publication number | Publication date |
|---|---|
| CN109947205A (en) | 2019-06-28 |
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